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Heinrich, Edith, and Nikola Getoff. "Mitomycin C-Activity Effected by Vitamins B1, C, E and β-Carotene under Irradiation with γ-Rays." Zeitschrift für Naturforschung C 58, no. 3-4 (April 1, 2003): 244–48. http://dx.doi.org/10.1515/znc-2003-3-418.
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Vitamin B1 (thiamine) can essentially effect the activity of mitomycin C (MMC), added individually or in combination with antioxidant vitamins (C, E-acetate, β-carotene) as found in experiments in vitro (Escherichia coli bacteria, AB 1157) under irradiation with γ-rays. The environment plays a crucial role. In airfree media vitamin B1 leads to a 2-fold increase of the MMC-efficiency, but adding vitamin C it decreases. In the presence of all vitamins (B1, C, E-ac., and β-carotene) the MMC-action increases about 1.8-fold. In aerated media vitamin B1 causes an about 4-times increase of the MMC-efficiency, but by adding vitamin B1 and C the MMC-activity decreases by a factor of two, whereas in the presence of B1, C, E-ac., and β-carotene it rises again to 2.6-fold. In environment saturated with N2O (conversion of e-aq into OH radicals) a different picture is observed. The presence of vitamin B1 or vitamin B1 + C causes a strong decrease of the MMC-efficiency, but the addition of all vitamins (B1, C, E-ac., and β-car.) leads to a small increase of the cytostatic action. The results demonstrate the influence of vitamin B1 used individually or in combination with other antioxidants on the MMC-efficiency and the strong effect of the environment. The results are of interest for the application of MMC in radiotherapy.
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Putri, Rejeki Geubrina, Muhammad Nasir, and Abdul Gani. "ANALYSIS OF VITAMIN C AND B1 LEVELS IN SENDUDUK FRUIT (Melastoma malabathricum L.) USING UV-VIS SPECTROPHOTOMETRY METHOD." Chimica Didactica Acta 8, no. 2 (October 6, 2021): 49–54. http://dx.doi.org/10.24815/jcd.v8i2.23028.
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The fruit of "senduduk" contains a variety of nutrients and vitamins including vitamin C and B1. This study aims to determine the levels of vitamins C and B1 in young and ripe senduduk fruit that grows in coastal areas and in the mountains. The sample of the fruit was extracted with water. The absorbance of the extract of the fruit was then measured using UV-Vis spectrophotometry for vitamin C at a wavelength of 250 nm, while for vitamin B1 was measured at 420 nm. The results showed that vitamin C levels were (G1 = 0.34; G2 = 0.29%; P1 = 0.35; and P2 = 0.31)%, vitamin B1 was (G1 = 0.21; G2 = 0, 10%; P1 = 0.28; and P2 = 0.18)%. The results of the study can be concluded that there is a significant difference in vitamin C levels between young and old fruit, but it is not significantly different for the difference in the place of growth. There is a significant difference in vitamin B1 levels between young and ripe senseng fruit.
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Jacobs, Peter, and Lucille Wood. "Vitamin B1." Disease-a-Month 49, no. 11 (November 2003): 646–52. http://dx.doi.org/10.1016/j.disamonth.2003.09.004.
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Fenti, Fenti, Agustinus Widodo, and Jamaluddin Jamaluddin. "ANALYSIS OF VITAMIN B-COMPLEX OF EEL FISH (ANGUILLA MARMORATA (Q.) GAIMARD) ON ELVER PHASE ORIGIN LAKE POSO." Ghidza: Jurnal Gizi dan Kesehatan 2, no. 2 (January 10, 2019): 49. http://dx.doi.org/10.22487/gjgk.v2i2.11321.
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Background & Objective: Vitamins are complex organic substances that are needed by the body in small amounts, usually cannot be synthesized by the body but are important in metabolic processes one of which is vitamin B. Vitamin B consists of vitamins B1, B2, B3, B6, B9 and B12. Eel is one of the fish that has a high nutrient content, one of which is vitamin B. This study aims to determine the levels of vitamin B (B1, B2, B3, B6, B9 and B12) in Eel fish (Anguilla marmorata (Q.) Gaimard) on Elver phase from Lake Poso. Material and Methods: Determination of vitamin B1, B2, B3, B6 and B9 using HPLC (High Performance Liquid Chromatography), and vitamin B12 using LC-MS (Liquid Chromatography-Mass Spectrometry) . Results: The levels of vitamin B2, B3 and B12is 0.133 mg/100g, 1.895 mg/100g, and 0.017mg/100g, whereas in vitamin B1, B6 and B9 is not detected. Conclusion: Eel fish (Anguilla marmorata (Q.) Gaimard) on Elver phase from Lake Poso can be used as a source of vitamins B2, B3 and B12.
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Baltrusch, Simone. "The Role of Neurotropic B Vitamins in Nerve Regeneration." BioMed Research International 2021 (July 13, 2021): 1–9. http://dx.doi.org/10.1155/2021/9968228.
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Damage and regeneration naturally occur in the peripheral nervous system. The neurotropic B vitamins thiamine (B1), pyridoxine (B6), and cobalamin (B12) are key players, which maintain the neuronal viability in different ways. Firstly, they constantly protect nerves against damaging environmental influences. While vitamin B1 acts as a site-directed antioxidant, vitamin B6 balances nerve metabolism, and vitamin B12 maintains myelin sheaths. However, nerve injury occurs at times, because of an imbalance between protective factors and accumulating stress and noxae. This will result in the so-called Wallerian degeneration process. The presence of vitamins B1, B6, and B12 paves the way out to the following important regeneration by supporting the development of new cell structures. Furthermore, vitamin B1 facilitates the usage of carbohydrates for energy production, whereas vitamin B12 promotes nerve cell survival and remyelination. Absence of these vitamins will favor permanent nerve degeneration and pain, eventually leading to peripheral neuropathy.
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Shibata, Katsumi, Atsushi Shimizu, and Tsutomu Fukuwatari. "Vitamin B1 Deficiency Does not Affect the Liver Concentrations of the Other Seven Kinds of B-Group Vitamins in Rats." Nutrition and Metabolic Insights 6 (January 2013): NMI.S11749. http://dx.doi.org/10.4137/nmi.s11749.
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We aimed to determine the effects of vitamin B1 deficiency on vitamin contents of urine, liver, and blood. In the current study, rats were divided into 3 groups (n = 5, each group): the first was freely fed a complete diet (ad lib-fed control group); the second freely fed a vitamin B1-free diet (vitamin B1 deficient group); and the third pair-fed a complete diet with the same amounts of the vitamin B1 deficient group (pair-fed control group). The experimental period was for 15 days. The blood concentrations of vitamin B2, PLP, vitamin B12, folic acid, and biotin were lower in the pair-fed control than in the ad lib-fed control and those of nicotinamide and pantothenic acid were the same. We conclude that Vitamin B1 deficiency did not affect concentrations of the other B-group vitamins.
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Sabaruddin, Sabaruddin, Umy Kurniati Rasyid, Whyllies Agung Buana, Meike Pakaya, and Fitriana Nur Husain. "Optimasi dan Validasi Metode KCKT untuk Identifikasi dan Penetapan Kadar Vitamin B1, B3, B6, dan Kofein dalam Suplemen Kesehatan." Journal of Experimental and Clinical Pharmacy (JECP) 2, no. 2 (August 31, 2022): 115. http://dx.doi.org/10.52365/jecp.v2i2.425.
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Uji identifikasi dan penetapan kadar merupakan salah satu persyaratan mutu suplemen kesehatan yang mengandung vitamin B1, B3, B6, dan kofein sehingga diperlukan metode analisis yang optimal untuk mendeteksi secara simultan analit-analit tersebut dalam suatu campuran matriks. Saat ini telah tersedia metode analisa KCKT sistem gradien untuk pengujian tersebut. Namun, dari metode analisa tersebut diperoleh profil kromatogram yang belum optimal dengan nilai resolusi 0,844 pada puncak analit vitamin B3 dan B1. Hal ini disebabkan masih berhimpitnya puncak kedua analit dan tidak terpisah dengan baik pada baseline kromatogram. Oleh karena itu dianggap perlu untuk melakukan optimasi pada metode analisa ini dengan melakukan modifikasi perbandingan komposisi fase gerak sistem gradien pada menit terelusinya vitamin B3 dan B1. Metodologi penelitian menggunakan penelitian eksperimental laboratorium dengan parameter yang diamati adalah profil kromatogram pemisahan puncak analit dan nilai resolusi antara vitamin B3 dan B1. Berdasarkan data hasil optimasi diperoleh komposisi fase gerak ammonium asetat : asetonitril (25:75) yang memberikan profil kromatogram optimal terhadap pemisahan vitamin B3 dan B1 dengan nilai resolusi 7,230 untuk vitamin B3 dan 3,427 untuk vitamin B1 (syarat resolusi > 2). Metode optimasi kemudian dilanjutkan dengan validasi metode analisa dengan hasil uji parameter selektifitas, akurasi, presisi, linearitas, nilai LOD, dan nilai LOQ memenuhi syarat keberterimaan sehingga metode ini dapat digunakan untuk melakukan pengujian identifikasi dan penetapan kadar vitamin B1, B3, B6, dan kofein dalam sediaan suplemen kesehatan.Identification and assay tests are one of the quality requirements of health supplements containing vitamins B1, B3, B6, and caffeine, so an optimal analytical method is needed to detect these analytes simultaneously in a matrix mixture. Currently, a gradient system HPLC analysis method is available for this test. However, from this analysis method, the chromatogram profile was not optimal with a resolution value of 0.844 at the peak of the vitamin B3 and B1 analytes. This is because the peaks of the two analytes are still close together and are not well separated on the baseline chromatogram. Therefore, it is considered necessary to optimize this analytical method by modifying the ratio of the mobile phase composition of the gradient system at the minute of elution of vitamins B3 and B1. The research methodology used experimental laboratory research with the parameters observed were the chromatogram profile of analyte peak separation and the resolution value between vitamins B3 and B1. Based on the optimization data, the mobile phase composition of ammonium acetate: acetonitrile (25:75) provides an optimal chromatogram profile for the separation of vitamins B3 and B1 with a resolution value of 7,230 for vitamin B3 and 3,427 for vitamin B1 (resolution > 2). The optimization method is then followed by validation of the analytical method with the test results of the parameters of selectivity, accuracy, precision, linearity, LOD value, and LOQ value meeting the acceptance requirements so that this method can be used to test the identification and determination of vitamin B1, B3, B6, and caffeine levels. in the preparation of health supplements.
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Salsabila, Azka Mutiara, Lukita Devy, and Dasumiati Dasumiati. "Propagation of Cardamom (Amomum compactum) Using Vitamin B1, Indole Butyric Acid and Their Combinations Ex Vitro." Jurnal Biodjati 9, no. 1 (May 31, 2024): 54–65. http://dx.doi.org/10.15575/biodjati.v9i1.33327.
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Cardamom (Amomum compactum) is an aromatic spice plant with numerous benefits, widely used in cooking, medicine, and beverages. The high demand for cardamom remains unmet due to the lengthy germination period required for cardamom seeds and the inability of cardamom shoots to thrive when planted independently from the mother plant. The presence of the mother plant significantly impacts cardamom nurseries utilizing shoots, making it challenging to obtain large quantities of nursery transplants. Growth stimulants, such as vitamin B1 and Indole Butyric Acid (IBA), are required to enhance vegetative growth in plants. Vitamin B1 (IPI brand) is applied due to its ease of accessibility and cost-effectiveness. Meanwhile, IBA is utilized for its accessibility, stable chemical content, and prolonged efficacy. This research aims to determine the optimal concentration of vitamin B1, IBA, and their combination to enhance the growth of mother and tiller shoots of cardamom ex vitro. The research employed a two-factorial Randomized Complete Block Design, with vitamin B1 concentrations of 21.5% and 43% and IBA concentrations of 0.75 ppm and 150 ppm. The treatment V1I1 (vitamin B1 21.5% and IBA 75 ppm) on mother plant shoots maintained a survival rate of 67% up to 12 Weeks After Planting (WAP). The interaction between vitamins B1 and IBA exhibited no significant effect on all parameters of mother shoots and tillers; however, vitamin B1 significantly influenced the vegetative growth of cardamom mother shoots. Vitamin B1 at 43% produced a significantly higher number of leaves compared to 21.5%. Thus, vitamin B1 at 43% is recommended for cardamom propagation, while vitamin B1 at 21.5% has the potential to enhance the average growth of tiller shoots across all parameters.
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Wake, Taichi, Jun Kunisawa, Eri Hashimoto, Yuji Suzuki, and Hiroshi Kiyono. "Vitamin B1 is an essential survival factor for naïve B cells but not IgA-secreting plasma cells (120.9)." Journal of Immunology 188, no. 1_Supplement (May 1, 2012): 120.9. http://dx.doi.org/10.4049/jimmunol.188.supp.120.9.
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Abstract It is generally accepted that dietary factors contribute in the regulation of various immunological functions. Among different kinds of dietary materials, vitamin families such as vitamin A, B6, B9, and D3 play critical regulatory roles for immune responses, but the immunological functions of the other vitamins remain largely unknown. Here, we demonstrate that vitamin B1, also known as thiamine, is an essential factor to keep naïve B cells but not IgA-secreting plasma cells. When mice were maintained with vitamin B1-deficient diet, IgM+ B220+ naïve B cells were significantly decreased in the spleen, mesenteric lymph nodes, and Peyer’s patches, while B220- CD138+ plasma cells secreting IgA antibodies were normally present in the small intestine. In agreement with this finding, despite the reduction of naïve B cells, levels of antigen-specific intestinal IgA responses were unchanged in mice receiving vitamin B1(-) diet after oral immunization with Choleratoxin. Similarly, IgA-secreting cells normally produced IgA even in the absence of vitamin B1 in vitro. These findings demonstrate a new immunological function of vitamin B1 at the different B cell stages.
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Fitzpatrick, Teresa B., and Lottie M. Chapman. "The importance of thiamine (vitamin B1) in plant health: From crop yield to biofortification." Journal of Biological Chemistry 295, no. 34 (June 17, 2020): 12002–13. http://dx.doi.org/10.1074/jbc.rev120.010918.
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Ensuring that people have access to sufficient and nutritious food is necessary for a healthy life and the core tenet of food security. With the global population set to reach 9.8 billion by 2050, and the compounding effects of climate change, the planet is facing challenges that necessitate significant and rapid changes in agricultural practices. In the effort to provide food in terms of calories, the essential contribution of micronutrients (vitamins and minerals) to nutrition is often overlooked. Here, we focus on the importance of thiamine (vitamin B1) in plant health and discuss its impact on human health. Vitamin B1 is an essential dietary component, and deficiencies in this micronutrient underlie several diseases, notably nervous system disorders. The predominant source of dietary vitamin B1 is plant-based foods. Moreover, vitamin B1 is also vital for plants themselves, and its benefits in plant health have received less attention than in the human health sphere. In general, vitamin B1 is well-characterized for its role as a coenzyme in metabolic pathways, particularly those involved in energy production and central metabolism, including carbon assimilation and respiration. Vitamin B1 is also emerging as an important component of plant stress responses, and several noncoenzyme roles of this vitamin are being characterized. We summarize the importance of vitamin B1 in plants from the perspective of food security, including its roles in plant disease resistance, stress tolerance, and crop yield, and review the potential benefits of biofortification of crops with increased vitamin B1 content to improve human health.
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Salvati, Louis M., Sean C. McClure, Todime M. Reddy, and Nicholas A. Cellar. "Simultaneous Determination of Total Vitamins B1, B2, B3, and B6 in Infant Formula and Related Nutritionals by Enzymatic Digestion and LC-MS/MS: Single-Laboratory Validation, First Action 2015.14." Journal of AOAC INTERNATIONAL 99, no. 3 (May 1, 2016): 776–85. http://dx.doi.org/10.5740/jaoacint.15-0315.
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Abstract This method provides simultaneous determination of total vitamins B1, B2, B3, and B6 in infant formula and related nutritionals (adult and infant). The method was given First Action for vitamins B1, B2, and B6, but not B3, during the AOAC Annual Meeting in September 2015. The method uses acid phosphatase to dephosphorylate the phosphorylated vitamin forms. It then measures thiamine (vitamin B1); riboflavin (vitamin B2); nicotinamide and nicotinic acid (vitamin B3); and pyridoxine, pyridoxal, and pyridoxamine (vitamin B6) from digested sample extract by liquid chromatography-tandem mass spectrometry. A single-laboratory validation was performed on 14 matrixes provided by the AOAC Stakeholder Panel on Infant Formula and Adult Nutritionals (SPIFAN) to demonstrate method effectiveness. The method met requirements of the AOAC SPIFAN Standard Method Performance Requirement for each of the three vitamins, including average over-spike recovery of 99.6 ± 3.5%, average repeatability of 1.5 ± 0.8% relative standard deviation, and average intermediate precision of 3.9 ± 1.3% relative standard deviation.
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Fattal-Valevski, Aviva. "Thiamine (Vitamin B1)." Journal of Evidence-Based Complementary & Alternative Medicine 16, no. 1 (January 2011): 12–20. http://dx.doi.org/10.1177/1533210110392941.
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Thiamine (vitamin B1) was the first B vitamin to have been identified. It serves as a cofactor for several enzymes involved in energy metabolism. The thiamine-dependent enzymes are important for the biosynthesis of neurotransmitters and for the production of reducing substances used in oxidant stress defenses, as well as for the synthesis of pentoses used as nucleic acid precursors. Thiamine plays a central role in cerebral metabolism. Its deficiency results in dry beriberi, a peripheral neuropathy, wet beriberi, a cardiomyopathy with edema and lactic acidosis, and Wernicke—Korsakoff syndrome, whose manifestations consist of nystagmus, ophthalmoplegia, and ataxia evolving into confusion, retrograde amnesia, cognitive impairment, and confabulation. Patients on a strict thiamine-deficient diet display a state of severe depletion within 18 days. The most common cause of thiamine deficiency in affluent countries is either alcoholism or malnutrition in nonalcoholic patients. Treatment by thiamine supplementation is beneficial for diagnostic and therapeutic purposes.
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Moriya, Aya, Tsutomu Fukuwatari, Mitsue Sano, and Katsumi Shibata. "Different variations of tissue B-group vitamin concentrations in short- and long-term starved rats." British Journal of Nutrition 107, no. 1 (June 27, 2011): 52–60. http://dx.doi.org/10.1017/s0007114511002339.
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Prolonged starvation changes energy metabolism; therefore, the metabolic response to starvation is divided into three phases according to changes in glucose, lipid and protein utilisation. B-group vitamins are involved in energy metabolism via metabolism of carbohydrates, fatty acids and amino acids. To determine how changes in energy metabolism alter B-group vitamin concentrations during starvation, we measured the concentration of eight kinds of B-group vitamins daily in rat blood, urine and in nine tissues including cerebrum, heart, lung, stomach, kidney, liver, spleen, testis and skeletal muscle during 8 d of starvation. Vitamin B1, vitamin B6, pantothenic acid, folate and biotin concentrations in the blood reduced after 6 or 8 d of starvation, and other vitamins did not change. Urinary excretion was decreased during starvation for all B-group vitamins except pantothenic acid and biotin. Less variation in B-group vitamin concentrations was found in the cerebrum and spleen. Concentrations of vitamin B1, vitamin B6, nicotinamide and pantothenic acid increased in the liver. The skeletal muscle and stomach showed reduced concentrations of five vitamins including vitamin B1, vitamin B2, vitamin B6, pantothenic acid and folate. Concentrations of two or three vitamins decreased in the kidney, testis and heart, and these changes showed different patterns in each tissue and for each vitamin. The concentration of pantothenic acid rapidly decreased in the heart, stomach, kidney and testis, whereas concentrations of nicotinamide were stable in all tissues except the liver. Different variations in B-group vitamin concentrations in the tissues of starved rats were found. The present findings will lead to a suitable supplementation of vitamins for the prevention of the re-feeding syndrome.
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Vilms, E. A., D. V. Turchaninov, T. A. Yunatskaya, and I. A. Sokhoshko. "ASSESSMENT OF VITAMIN PROVISION OF THE POPULATION OF THE LARGE ADMINISTRATIVE AND ECONOMIC CENTER OF THE WESTERN SIBERIA." Hygiene and sanitation 96, no. 3 (March 27, 2019): 277–80. http://dx.doi.org/10.18821/0016-9900-2017-96-3-277-280.
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Evaluation of vitamin status in residents of the Omsk city (106 men and 135 women) aged of from 18 to 75 years according to the serum content of vitamins A, D, E, K, C, B1, B5, B6, B9, B12. Lack of vitamins in the majority of the observed cases (63.2 ± 3.8%) had a combined character. There was revealed pronounce lack of vitamin D and folic acid, respectively in 70.9 ± 3.6% and 63.2 ± 5.6% of observed persons. The substantial proportion of the population was found to suffer from lacks of vitamin B1 (47.5 ± 4.2%), B6 (49.7 ± 3.8%), and vitamin E (47.1 ± 4.0%). The frequency of detection of a reduced availability of vitamin C was 16.2 ± 3.4%, B12 - 13.2 ± 3.2%, respectively. The deficiency of vitamin A deficiency was seldom (from 5.8 ± 1.9%). In the sample no person with a deficiency of vitamin K and pantothenic acid (B5) was revealed. Mediane of concentrations of phylloquinone, retinol and ascorbic acid and cyanocobalamin in blood serum were in the range of optimum values. Borderline values of the content (at the level of the lower limit of normal) were seen for vitamin E, B1, B6. There were found age differences in the availability of vitamins E, K, ascorbic acid.
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Pizova, N. V. "The role of neurotropic B vitamins in clinical practice." Meditsinskiy sovet = Medical Council, no. 21 (November 23, 2023): 116–21. http://dx.doi.org/10.21518/ms2023-403.
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B-group vitamins are a collection of 8 water-soluble vitamins. They are cofactors for many enzymes, as well as axonal transport, synthesis of neurotransmitters and other metabolic processes. Their function can be divided into catabolic metabolism, leading to energy production, and anabolic metabolism. Some B vitamins are considered neurotrophic and play a particularly important role in both the central and peripheral nervous systems. Neurotropic B-group vitamins (B1 – thiamine, B6 – pyridoxine and B12 – cyanocobalamin) play the role of modulators for the treatment of inflammation and pain, they are essential for the proper functioning of the nervous system. B vitamin deficiencies have been considered as etiological factors in the development of various neurological disorders and a broad spectrum of pathological states. The work examines in detail vitamins B1, B6 and B12 and their effect on the course of neuropathies, movement disorders, nociceptive and neuropathic pain. The issues of the synergistic action of these vitamins are highlighted. Evidence of neurotropic B vitamin treatment effectiveness of neuropathy symptoms in different groups of patients is presented. The possibility to use vitamin B1 and B6 complex in clinical practice under the condition of individual intolerance of vitamin B12 is discussed. Information about Cytipigam® compositum as a drug containing B1 and B6 is provided. A clinical case report on the effective use of this drug in clinical practice is described.
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Hoffmann, Jessica, Stefan Busse, Franz von Hoff, Katrin Borucki, Thomas Frodl, and Mandy Busse. "Association Between Homocysteine and Vitamin Levels in Demented Patients." Journal of Alzheimer's Disease 81, no. 4 (June 15, 2021): 1781–92. http://dx.doi.org/10.3233/jad-201481.
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Background: Although it is known that the nutritional status among elderly persons and, in particular, patients with dementia, is compromised, malnutrition that results in insufficient uptake of several vitamins is often not diagnosed. Objective: An elevated homocysteine level is a known strong risk factor for vascular dementia (VaD) and Alzheimer’s disease (AD). Several B vitamins are involved in the metabolism of homocysteine. Therefore, we investigated the serum levels of vitamin B1, vitamin B6, folate, and vitamin B12 in 97 patients with mild cognitive impairment (MCI) or different forms of dementia and 54 elderly control persons without dementia. Results: Compared to aged non-demented people, vitamins B1, B6, B12, and folate were decreased in serum of patients with AD, and patients with Lewy body dementia had reduced vitamin B12 level. Vitamin B6 was diminished in VaD. Patients with frontotemporal dementia showed no alterations in vitamin levels. Age was identified as an important factor contributing to the concentrations of vitamin B1 and B6 in serum, but not vitamin B12 and folate. Increased levels of total homocysteine were detected especially in MCI and AD. Homocysteine correlated negatively with levels of vitamins B6, B12, and folate and positively with Q Albumin. Conclusion: Our data suggest that despite increased homocysteine already present in MCI, vitamin levels are decreased only in dementia. We propose to determine the vitamin levels in patients with cognitive decline, but also elderly people in general, and recommend supplementing these nutrients if needed.
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Suter. "Vergessene metabolische Nebenwirkungen der Diuretika: Lipid-, Glukose- und Vitamin B1- Stoffwechsel." Praxis 93, no. 20 (May 1, 2004): 857–63. http://dx.doi.org/10.1024/0369-8394.93.20.857.
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Diuretika können bei entsprechender Prädisposition den Lipid- und Glukosestoffwechsel ungünstig beeinflussen. Diese Effekte können meistens durch nicht-pharmakologische Massnahmen wie z.B. Gewichtsreduktion oder körperliche Aktivität ausgeglichen werden. Eine vergessene Nebenwirkung ist die Verschlechterung der Vitamin B1 (Thiamin)-Versorgungslage. Diuretika bewirken einen vermehrten Verlust von Vitamin B1 im Urin. Bei hoher Vitamin B1-Zufuhr ist dies ohne pathophysiologische Relevanz. Bei geringer Zufuhr von diesem Vitamin und chronischer Diuretikatherapie kann jedoch ein Vitamin B1-Mangel auftreten. Vitamin B1 spielt eine zentrale Rolle im Energiestoffwechsel, besonders auch auf dem Niveau des Herzens. Ein Vitamin B1-Mangel führt zur klassischen Vitamin B1-Mangelkrankheit, dem nassen Beri-Beri. Eine Herzinsuffizienz kann sich durch die zusätzliche Gabe von Vitamin B1 verbessern. Alle älteren Patienten unter chronischer Diuretikatherapie sollten eine orale Vitamin B1-Supplementierung erhalten.
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Potolitsyna, N. N., and E. R. Boyko. "VITAMIN STATUS OF LAW ENFORCEMENT OFFICERSUNDER THE INFLUENCE OF COMBAT STRESS." Marine Medicine 4, no. 3 (October 7, 2018): 57–63. http://dx.doi.org/10.22328/2413-5747-2018-4-3-57-63.
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Law enforcement officers with different levels of combat stress (men, residents of the Komi Republic, n=33, 35,0 (32,0– 39,0) years old) were examined before (November) and after (March) trips to the combat zone. The control group included agents of the Ministry of emergency situations with a low level of stress (men, residents of the Komi Republic, 32,0 (30,0–35,0) years old). In total, law enforcement officers were shown to have a wide prevalence of vitamin deficiency: about 50% of persons had hypovitaminosis for vitamins A, E, about 35% — for vitamins B1, B2 and 24% — for vitamin C. A parallel study of the control group and law enforcement officers in November showed that initially there were more persons with reduced vitamin status in law enforcement officers, especially in the level of vitamins B1 and E. In March, after the arrival of law enforcement officers from the combat zone, they found a significant decrease in the percentage of persons with hypovitaminosis for vitamins A, E, C and an increase vitamin B1 deficiency. Changes vitamin status in the control group from November to March were not so significant.
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Məmməd oğlu Məmmədov, Şahmar, and Rinat Raviloviç Qadiyev. "Aerosol treatment of day-old chickens with vitamins and medicines." NATURE AND SCIENCE 23, no. 8 (August 17, 2022): 19–24. http://dx.doi.org/10.36719/2707-1146/23/19-24.
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Məqalədə bir günlük cücələrin vitamin və dərman preparatları ilə aerozol müalicəsinin tətbiqi üzrə elmi tədqiqatların məlumatları verilir. A vitamini ilə müalicə edildikdə, bir günlük cücələri yağda həll olunan vitaminlərin aerozolları ilə müalicə etmək mümkün olduğu qənaətinə gəldik. Belə ki, onun ağciyər toxumasında konsentrasiyası aşağı, qanda isə eyni müalicə müddəti ilə suda həll olunan B1 vitamini ilə müqayisədə daha yüksək olmuşdur. Dispergirləşən (dağılan) mayedə farmazinin konsentrasiyasının çoxalması və emal müddətinin artırılması cücələrin ağciyər toxumasında və qaraciyərində antibiotikin konsentrasiyasının artmasına səbəb olmur. Açar sözlər: aerozol müalicəsi, dərmanlar, sutkalıq cücələr, yağda həll olunan vitaminlər, farmazin Shahmar Mammad Mammadov Rinat Ravilovich Gadiyev Aerosol treatment of day-old chickens with vitamins and medicines Abstract The article presents the data of scientific research on the use of aerosol treatment with vitamins and medicines of day-old chickens. When treated with vitamin A, it was concluded that it was possible to treat day-old chickens with aerosols of fat-soluble vitamins, since its concentration in the lung tissue was lower and in the blood was higher compared to water-soluble vitamin B1 with the same duration of treatment. An increase in the concentration of pharmazine in the dispersed liquid and an increase in the duration of treatment do not cause an increase in the concentration of the antibiotic in the lung tissue and liver of chickens. Keywords: aerosol treatment, medications, daily chickens, fat-soluble vitamins, pharmazine
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Kaczkan, Małgorzata, Sylwia Czaja-Stolc, Małgorzata Szczuko, Arleta Drozd, Przemysław Rutkowski, Alicja Dębska-Ślizień, and Sylwia Małgorzewicz. "Water-Soluble Vitamins Status in Patients Undergoing Maintenance Hemodialysis." Nutrients 15, no. 2 (January 14, 2023): 440. http://dx.doi.org/10.3390/nu15020440.
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The concentration of water-soluble vitamins (except folic acid and vitamin B12) is not routinely measured, which may lead to undiagnosed deficiencies among hemodialysis (HD) patients. The aim of the study was to assess the blood concentration of water-soluble vitamins in HD patients in comparison with healthy subjects and to assess the impact of diabetes mellitus (DM) coexistence on the concentration of these vitamins. The two-center study included 142 HD patients and a control group of 31 healthy subjects. Vitamins concentration was determined using high-performance liquid chromatography (HPLC). Vitamin B1, B6, and B12 levels were significantly lower in the HD group than in the control group (p < 0.001). Vitamin B1 and B2 were negatively correlated with blood urea nitrogen (BUN) levels before HD (R = −0.39, R = −0.38; p < 0.05). Vitamin B3, B12, and C were positively correlated with the albumin concentration (R = 0.26, R = 0.27, R = 0.28; p < 0.05). Among diabetic patients, only the concentration of vitamin B1 was lower than among non-diabetic patients. The concentration of water-soluble vitamins may be related to the adequacy of dialysis, the time of laboratory determination since the last dialysis, diet, coexistence of other diseases, use of drugs, and dietary supplements in individual patients.
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SIERRA, ISABEL, and CONCEPCIÓN VIDAL-VALVERDE. "Vitamin B1 and B6 Retention in Milk after Continuous-Flow Microwave and Conventional Heating at High Temperatures." Journal of Food Protection 64, no. 6 (June 1, 2001): 890–94. http://dx.doi.org/10.4315/0362-028x-64.6.890.
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The effect of continuous-flow microwave treatment at high temperatures on the retention of vitamins B1 and B6 in raw milk with different fat content was evaluated. Results were compared with those obtained using a conventional system (tubular heat exchanger) with the same heating and cooling phases. Heat treatment of whole (3.4% fat) and skim (0.5% fat) milk at 90°C produced no losses of vitamin B1 or vitamin B6 (pyridoxamine and pyridoxal). However, at 110 and 120°C, while vitamin B1 content of milk remained constant, pyridoxamine increased (4 to 5% and 9 to 11%, respectively) and pyridoxal decreased (5 to 6% and 9 to 12%, respectively). Under the assayed conditions, no differences were observed between the content of these vitamins in conventionally and continuous-flow microwave-treated milk.
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Ibrahim, Ibrahim H., S. M. Sallam, H. Omar, and M. Rizk. "Oxidative Hemolysis of Erythrocytes Induced by Various Vitamins." International Journal of Biomedical Science 2, no. 3 (September 15, 2006): 295–98. http://dx.doi.org/10.59566/ijbs.2006.2295.
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Hemolytic effect of some water-soluble vitamins (niacin B5, pyridoxine B6, thiamine B1 and ascorbic and acid C) on erythrocytes was studied spectrophotometrically at relatively high concentration. The oxidation mechanism of hemoglobin was the same for the used vitamins. Vitamin C was the strongest hemolytic agent in comparison with the other vitamins, while vitamin B1 is the weakest one. The results were confirmed by studying the variation in conductivity of erythrocytes with temperature in the range 20-40 °C for the used vitamins at a concentration of 2 mM and after two hours from adding each vitamin to the erythrocytes suspension. The conductivity measurements show that the conductivity for the used vitamins is lower than that for control (without adding vitamin) due to hemoglobin oxidation , also may be due to the electrical reorganization of the erythrocyte membrane after the interaction of the used vitamin with it. The obtained results insure the oxidizing effect of the used vitamins on hemoglobin and consequently their hemolytic effect on erythrocytes.
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Bévier, Alban, Etienne Novel-Catin, Emilie Blond, Solenne Pelletier, Francois Parant, Laetitia Koppe, and Denis Fouque. "Water-Soluble Vitamins and Trace Elements Losses during On-Line Hemodiafiltration." Nutrients 14, no. 17 (August 23, 2022): 3454. http://dx.doi.org/10.3390/nu14173454.
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Maintenance hemodialysis induces water-soluble vitamins and trace elements losses, which is why recommendations regarding potential supplementation were provided, but mainly based on conventional hemodialysis. This study′s aim was to measure the water–soluble vitamins and trace element losses during one on-line post-dilution hemodiafiltration (HDF) session. Thirty-nine patients under maintenance HDF were enrolled. We used the Theraflux® sampler (Theradial Corp., Orvault, France) to analyze the full session dialysate mass transfer. Blood and dialysate samples were collected before and after one HDF session to measure B1, B2, B6, B9, B12, C vitamins, zinc, and selenium concentrations. Values significantly decreased for B1 (20.2%), B2 (13%), B6 (25.4%), B9 (32.6%), C (66.6%) and selenium (6.7%). No significant differences were found for vitamin B12 and zinc. The dialysate losses per session were 1.12 ± 0.88 mg for vitamin B1, 0.28 ± 0.30 mg for B2, 0.33 ± 0.09 mg for B6, 0.3 ± 0.18 mg for B9, 147.5 ± 145.50 mg for C and 25.75 ± 6.91 mg for zinc. Vitamin B12 and selenium were under detection values. In conclusion, during a standard 4hr-HDF session, we found important losses for vitamin B1, B6, B9, C and zinc, suggesting the need for regular monitoring of plasma levels and systematic supplementation of these compounds.
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Joglar, Vanessa, Antero Prieto, Esther Barber-Lluch, Marta Hernández-Ruiz, Emilio Fernández, and Eva Teira. "Spatial and temporal variability in the response of phytoplankton and prokaryotes to B-vitamin amendments in an upwelling system." Biogeosciences 17, no. 10 (May 26, 2020): 2807–23. http://dx.doi.org/10.5194/bg-17-2807-2020.
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Abstract. We experimentally evaluated the temporal (interday and interseason) and spatial variability in microbial plankton responses to vitamin B12 and/or B1 supply (solely or in combination with inorganic nutrients) in coastal and oceanic waters of the northeast Atlantic Ocean. Phytoplankton and, to a lesser extent, prokaryotes were strongly limited by inorganic nutrients. Interday variability in microbial plankton responses to B vitamins was limited compared to interseason variability, suggesting that B-vitamin availability might be partially controlled by factors operating at seasonal scale. Chlorophyll a (Chl a) concentration and prokaryote biomass (PB) significantly increased after B-vitamin amendments in 13 % and 21 %, respectively, of the 216 cases (36 experiments × 6 treatments). Most of these positive responses were produced by treatments containing either B12 solely or B12 combined with B1 in oceanic waters, which was consistent with the significantly lower average vitamin-B12 ambient concentrations compared to that in the coastal station. Negative responses, implying a decrease in Chl a or PB, represented 21 % for phytoplankton and 26 % for prokaryotes. Growth stimulation by B1 addition was more frequent on prokaryotes than in phytoplankton, suggesting that B1 auxotrophy in the sampling area could be more widespread in prokaryotes than in phytoplankton. Negative responses to B vitamins were generalized in coastal surface waters in summer and were associated with a high contribution of Flavobacteriales to the prokaryote community. This observation suggests that the external supply of B12 and/or B1 may promote negative interactions between microbial components when B-vitamin auxotrophs are abundant. The microbial response patterns to B12 and/or B1 amendments were significantly correlated with changes in the prokaryotic community composition, highlighting the pivotal role of prokaryotes in B-vitamin cycling in marine ecosystems.
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Rahmawati, Previta Zeisar, and Dewi Cholimatus Sa'diyah. "PENETAPAN KADAR VITAMIN B1 PADA GENJER (LIMNOCHARIS FLAVA) DENGAN PENGUKUSAN MENGGUNAKAN SPEKTROFOTOMETER UV-VIS." JOURNAL OF MUHAMMADIYAH MEDICAL LABORATORY TECHNOLOGIST 3, no. 2 (December 12, 2020): 1. http://dx.doi.org/10.30651/jmlt.v3i2.4782.
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ABSTRACTGenjer (Limnocharis flava) is a daily consumable plant that often used as vegetable by wide society. It known have completed nutritional content such as protein, carbohydrate, mineral and vitamin. Genjer also known as good source of B1 vitamin. The purpose of this study was to identify B1 vitamin level of fresh and steamed genjer plant. Genjer plant were steamed for 2 minutes and 4 minutes. We also want to examine the best steamed time for the plant towards B1 vitamin level. Determination of genjer B1 vitamin level wa used UV-Vis Spectrofotometry at 511 nm, and thiamine was used as the standart solution. The study shown that B1 vitamin level were o,121 mg/100 g, 0,035 mg/100 g and 0,027 mg/100 g in fresh, 2 minutes steamed and 4 minutes steamed genjer plants respectively. We were done a quantitatively analysis of collected data to describe B1 vitamin level in treated genjer plants. The result showed that the longer of steamed period will reduce more of B1 vitamin level at genjer plants. We suggested that B1 vitamin more soluble in water and processing technique related with water have an effect towards B1 vitamin level, and 2 minutes steaming reduce less of B1 Vitamin compared to 4 minutes steaming. Keywords: Genjer (limnocharis flava), Analysis of Vitamin B1 Levels, UV-Vis Spectrophotometer
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Tsuji, Ai, Toshinobu Nakamura, and Katsumi Shibata. "Effects of Mild and Severe Vitamin B1 Deficiencies on the Meiotic Maturation of Mice Oocytes." Nutrition and Metabolic Insights 10 (January 1, 2017): 117863881769382. http://dx.doi.org/10.1177/1178638817693824.
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We investigated the effects of vitamin B1 deficiency on the meiosis maturation of oocytes. Female Crl:CD1 (ICR) mice were fed a 20% casein diet (control group) or a vitamin B1–free diet (test group). The vitamin B1 concentration in ovary was approximately 30% lower in the test group than in the control group. Oocyte meiosis was not affected by vitamin B1 deficiency when the deficiency was not accompanied by body weight loss. On the contrary, frequency of abnormal oocyte was increased by vitamin B1 deficiency when deficiency was accompanied by body weight loss (referred to as severe vitamin B1 deficiency; frequency of abnormal oocyte, 13.8% vs 43.7%, P = .0071). The frequency of abnormal oocytes was decreased by refeeding of a vitamin B1–containing diet (13.9% vs 22.9%, P = .503). These results suggest that severe vitamin B1 deficiency inhibited meiotic maturation of oocytes but did not damage immature oocytes.
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Agraib, Lana M., Islam Al-Shami, Buthaina Alkhatib, and Hanan Hasan. "The impact of energy releasing B-vitamin intake on indices of obesity and cardiac function: a cross-sectional study." F1000Research 12 (October 20, 2023): 1382. http://dx.doi.org/10.12688/f1000research.139672.1.
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Background: B vitamins play a crucial role in the balance and metabolism of energy. Energy metabolism mainly benefits from the B-complex vitamins. Specifically, decarboxylation, transamination, acylation, oxidation, and reduction of substrates that are ultimately employed in energy intake require thiamin, riboflavin, niacin, and vitamin B6. Vitamin deficiency could lead to chronic disease occurrence. Objectives: To assess the impact of energy-releasing B-vitamins intake (B1, B2, B3, and B6) on selected indices of obesity and cardiac function. Methods: A cross-sectional study was performed on 491 apparently healthy adults (18-64 years old) between January and May 2019 at Hashemite University, Jordan. Anthropometric measurements were taken, lipid profiles were analyzed, and indices of obesity and cardiac function were calculated. The typical dietary intake of B1, B2, B3, and B6 vitamins was calculated. Results: Conicity index (CI) and abdominal volume index (AVI) scores significantly decreased with the increased adjusted vitamin B1 and B6 intake. Also, body roundness index (BRI), weight-adjusted-waist index (WWI), lipid accumulation product (LAP), and atherogenic index of plasma (AIP) scores were decreased with the increase of adjusted B6 intake (p<0.05). The total sample showed a significant inverse weak correlation between energy-adjusted intake of B1 and AVI (r= -0.156, p=0.001) and BRI (r= 0.111, p=0.014). Similar correlations were detected among male participants between energy-adjusted B1 intake and BAI, AVI, and BRI. Female participants had a significant weak inverse correlation between BAI and energy-adjusted B2 (r= -0.180, p=0.029) and B6 intake (r= -0.212, p=0.010). Only B1, the vitamin, significantly explained 2.43 and 1.24% of changes observed in the AVI and BRI scores, respectively (p<0.05). Conclusions: Increasing the intake of B1, B2, and B6 may significantly lower indices of both obesity and cardiac function regardless of sex differences. Thus reducing the occurrence of obesity and related coronary heart diseases.
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Agraib, Lana M., Islam Al-Shami, Buthaina Alkhatib, and Hanan Hasan. "The impact of energy releasing B-vitamin intake on indices of obesity and cardiac function: a cross-sectional study." F1000Research 12 (February 23, 2024): 1382. http://dx.doi.org/10.12688/f1000research.139672.2.
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Background B vitamins play a crucial role in the balance and metabolism of energy. Energy metabolism mainly benefits from the B-complex vitamins. Specifically, decarboxylation, transamination, acylation, oxidation, and reduction of substrates that are ultimately employed in energy intake require thiamin, riboflavin, niacin, and vitamin B6. Vitamin deficiency could lead to chronic disease occurrence. Objectives To assess the impact of energy-releasing B-vitamins intake (B1, B2, B3, and B6) on selected indices of obesity and cardiac function. Methods A cross-sectional study was performed on 491 apparently healthy adults (18-64 years old) between January and May 2019 at Hashemite University, Jordan. Anthropometric measurements were taken, lipid profiles were analyzed, and indices of obesity and cardiac function were calculated. The typical dietary intake of B1, B2, B3, and B6 vitamins was calculated. Results Conicity index (CI) and abdominal volume index (AVI) scores significantly decreased with the increased adjusted vitamin B1 and B6 intake. Also, body roundness index (BRI), weight-adjusted-waist index (WWI), lipid accumulation product (LAP), and atherogenic index of plasma (AIP) scores were decreased with the increase of adjusted B6 intake (p<0.05). The total sample showed a significant inverse weak correlation between energy-adjusted intake of B1 and AVI (r= -0.156, p=0.001) and BRI (r= 0.111, p=0.014). Similar correlations were detected among male participants between energy-adjusted B1 intake and BAI, AVI, and BRI. Female participants had a significant weak inverse correlation between BAI and energy-adjusted B2 (r= -0.180, p=0.029) and B6 intake (r= -0.212, p=0.010). Only B1, the vitamin, significantly explained 2.43 and 1.24% of changes observed in the AVI and BRI scores, respectively (p<0.05). Conclusions Increasing the consumption of B1, B2, and B6 may significantly lower values of indices of obesity and cardiac function regardless of sex differences. Thus reducing the occurrence of obesity and related coronary heart diseases.
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Morin, Karen. "Thiamine (Vitamin B1) Revisited." MCN, The American Journal of Maternal/Child Nursing 29, no. 3 (May 2004): 200. http://dx.doi.org/10.1097/00005721-200405000-00012.
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Gröber, Uwe. "Diuretika und Vitamin B1." Zeitschrift für Orthomolekulare Medizin 10, no. 01 (March 2012): 24–25. http://dx.doi.org/10.1055/s-0031-1298312.
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Girrbach, Gudrun. "Vitamin B1 bei Diabetes." CME 20, no. 9 (September 2023): 54. http://dx.doi.org/10.1007/s11298-023-3330-5.
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ULUSOY, Halil İbrahim, İpek Nur YİĞİT, Ümmügülsüm POLAT, Esra DURGUN, Aslıhan GÜRBÜZER, and Songül ULUSOY. "Simultaneously HPLC Analysis of B1, B9 and B12 Vitamins at Trace Levels via Cloud Point Extraction." Cumhuriyet Science Journal 44, no. 4 (December 28, 2023): 716–22. http://dx.doi.org/10.17776/csj.1342960.
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An enrichment and determination method based on liquid chromatographically analysis and cloud point extraction (CPE) has been developed for trace levels of B vitamins (B1, B9 and B12) in the proposed study. Vitamin molecules were drawn into the non-ionic surfactant phase of Polyethylene Glycol (PEG-6000) in the presence of pH 9.0 medium. The surfactant-rich phase separated by centrifugation and then dissolved with 700 µL of ethanol. The obtained ethanol phase was filtered by 0.45-micron filter prior to the HPLC analysis. All parameters affecting the CPE method such as pH, buffer volume, incubation time, surfactant and electrolyte concentration, solvent for the surfactant-rich phase and its amount have been individually studied and optimized step by step. After the optimization of all parameters of the CPE process, the detection limits of the developed method for B1, B9 and B12 vitamins were calculated as 1.42 ng mL-1, 7.14 ng mL-1 and 14.28 ng mL-1 , respectively. The linear working ranges for three vitamin molecules was obtained in the range of 5.0-500.0 ng mL-1. After CPE procedure, determination of vitamin molecules was carried out by using HPLC system with diode array detector(DAD) at 244 nm for vitamin B1, 285 nm for vitamin B9, and 361 nm for vitamin B12, respectively
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Herlina, Herlina. "ANALISA VITAMIN B1 PADA MAKANAN OLAHAN KACANG KEDELAI MENGGUNAKAN METODE SPEKTROFOTOMETRI." Jurnal Ilmiah Pharmacy 9, no. 2 (October 20, 2022): 136–43. http://dx.doi.org/10.52161/jiphar.v9i2.431.
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Thiamin (Vitamin B1) merupakan salah satu jenis vitamin yang tidak stabil. Stabilitasnya dipengaruhi oleh pH, suhu dan cara pengolahannya. Pencucian merupakan faktor penting yang mempengaruhi kehilangan tiamin dalam bahan pangan. Kedelai merupakan salah satu tumbuhan yang banyak mengandung vitamin B1. Kacang kedelai biasa dikonsumsi dalam produk olahan seperti tempe, tahu, susu kedelai, kecap dan lain-lain. Tujuan dari penelitian ini yaitu untuk identifikasi dan penetapan kadar vitamin B1 pada kacang kedelai dan olahan kacang kedelai. Penelitian dilakukan dengan melakukan pengujian kualitatif dengan reaksi tiokrom dan timbal asetat, lalu dilakukan pengujian kuantitatif dengan metode spektrofotometri visible yaitu dengan pembuatan larutan induk, penentuan panjang gelombang maksimum, pembuatan kurva kalibrasi, dan penetapan kadar vitamin B1 pada kacang kedelai dan olahan kacang kedelai (Tempe, Tahu, Susu Kedelai, dan Kecap) dengan menggunakan spektofotometri visible dengan panjang gelombang 616 nm. Hasil penelitian menunjukkan kacang kedelai dan olahan kacang kedelai (Tempe, Tahu, Susu Kedelai, dan Kecap) positif mengandung vitamin B1. Hasil kadar vitamin B1 tertinggi berturut-turut yaitu kacang kedelai 0,465% , Kecap 0,362% , Tempe 0,340% , Tahu 0,306% , Susu kedelai 0,206%. Hal ini menunjukan proses pengolaan mempengaruhi kadar vitamin B1. Kata Kunci : Kacang Kedelai, Vitamin B1, Spektrofotometri UV-Vis
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Rahmawati, Irma, and Annisa Pitaloka. "Pengaruh Waktu Penghangatan Nasi Putih dalam Rice Cooker Terhadap Kadar Vitamin B1 (Tiamin HCl)." Pharmaceutical Science and Clinical Pharmacy 1, no. 2 (December 27, 2023): 29–36. http://dx.doi.org/10.61329/pscp.v1i2.8.
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Vitamin B1 (Tiamin HCl) memiliki peran penting dalam tubuh khususnya pada sistem saraf. Vitamin B1 terdapat pada berbagai jenis makanan, salah satunya adalah nasi. Penelitian ini bertujuan untuk mengetahui efek dari penggunaan Rice Cooker terhadap kadar Vitamin B1 yang terdapat dalam nasi putih yang dihangatkan pada variasi waktu penghangatan yaitu 0, 6 dan 12 jam. Sampel yang digunakan sebanyak tiga jenis beras putih dengan kualitas berbeda. Analisis kualitatif dilakukan dengan reaksi warna timbal asetat, dan pereaksi diazotasi. Selanjutnya dilakukan analisis kadar Vitamin B1 dengan menggunakan Spektrofotometri UV-Visible. Hasil penelitian dari ketiga sampel, menunjukkan masih terdapat kandungan Vitamin B1 pada nasi yang dihangatkan, namun kadar Vitamin B1 mengalami penurunan. Sampel 1 memiliki kadar Vitamin B1 paling tinggi dengan rata-rata kadar Vitamin B1 pada pada waktu 0 jam sebesar 34,02 mg/Kg, 6 jam sebesar 27,26 mg/Kg, dan 12 jam sebesar 23,99 mg/Kg. Diikuti sampel 3 dengan kadar Vitamin B1 sebesar 24,58 mg/Kg pada waktu 0 jam, 18,34 mg/Kg pada waktu 6 jam dan 13,75 mg/Kg pada waktu 12 Jam. Kandungan terkecil ada pada Sampel 2 yang memiliki kadar vitamin B pada waktu 0 jam sebesar 13,64 mg/Kg, 6 jam yaitu 13,64 mg/Kg, dan 12 jam sebesar 10,52 mg/Kg. Berdasarkan hasil statistik, data berdistribusi normal dan masing-masing sampel terdapat perbedaan bermakna dengan nilai signifikansi (P<0,05). Hasil penelitian ini menunjukan bahwa semakin lama waktu penghangatan dalam rice cooker, maka kandungan Vitamin B1 di dalam nasi putih semakin menurun.
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Sugiarti, Mustika, Dwi Prijatmoko, and Sulistiyani Sulistiyani. "Pengaruh Asupan Vitamin terhadap Indeks Prestasi Semester (IPS) Mahasiswa Angkatan 2019 Fakultas Kedokteran Gigi Universitas Jember." STOMATOGNATIC - Jurnal Kedokteran Gigi 21, no. 1 (March 31, 2024): 19. http://dx.doi.org/10.19184/stoma.v21i1.47329.
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Students have an obligation to be able to carry out activities and achieve optimally. Vitamins are important constituents of enzymatic systems that can support student learning activities. Learning achievement at university level is implemented in the form of the Semester Achievement Index. This study aims to analyze the effect of vitamin intake on the Semester Achievement Index of students class of 2019, Faculty of Dentistry, University of Jember. The population consisted of all students from the Faculty of Dentistry, University of Jember Class of 2019. The sample size that met the criteria was 104 students. Research procedures include direction, measuring height and weight, filling out nutritional intake measurement sheets, data conversion, and data input. Data analysis used ordinal regression to determine the effect of food intake on Semester Achievement Index. The average student Semester Achievement Index (IPS) is 3.30 which is included in the Very Satisfactory category. Vitamin intake simultaneously has a significant effect on the Semester Achievement Index (IPS). Analysis of the most dominant vitamin intake to increase the Semester Achievement Index of dental students class of 2019 can be seen through the odds ratio value, vitamin B1 has an odds ratio value of 6.754, B2, 1.930, and C 1.003. Vitamin intake has a significant effect on Semester Achievement Index (IPS). Vitamin B1 has the greatest influence on Semester Achievement Index followed by vitamins B2 and C. Consuming a higher intake of vitamins B1, B2 and C has the possibility of increasing students' Semester Achievement Index.
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Dini Rahayu, N. I., F. Kusmiyati, and Fajrin P. Putra. "Effect of planting material and B1 vitamin during acclimatization on the growth of potato (Solanum tuberosum cv. Granola)." IOP Conference Series: Earth and Environmental Science 1246, no. 1 (September 1, 2023): 012027. http://dx.doi.org/10.1088/1755-1315/1246/1/012027.
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Abstract The research aimed to evaluate the effect of planting material and B1 vitamins during acclimatization on potato growth. The research was conducted at greenhouse PT. Adhiguna Jaya Laboratory, Central Java - Indonesia. The study used a completely randomized design - factorial 2 x 3 with four replications. The first factor was planting material: cuttings shoot plantlet (H1) and whole plantlet (H2). The second factor was an application of B1 vitamin in growing media : 0 ml. L−1 (M1), 1 ml. L−1 (M2), and 2 ml. L−1 (M3). The results showed that the whole plantlet had a significant effect on plant height, the number of leaves, shoots, and root length than the cuttings shoot planlet. Application of B1 vitamin 1 ml. L−1 at growing media showed the highest effect on roots length. Combination of whole plantlet and concentration B1 vitamin at 1 ml. L−1 - 2 ml. L−1 were increased growth the highest of 95.24% - 100% number of leaves, 2.50% - 3.00% shoots, and 15.82% - 19.90% root length. It can be concluded that the whole plantlet and application of 1 ml. L−1 - 2 ml. L−1 B1 vitamin in growing media during acclimatization increased the growth of potatoes.
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Clements, Ronald H., Venkata G. Katasani, Rajendra Palepu, Ruth R. Leeth, Teresa D. Leath, Brandon P. Roy, and Selwyn M. Vickers. "Incidence of Vitamin Deficiency after Laparoscopic Roux-en-Y Gastric Bypass in a University Hospital Setting." American Surgeon 72, no. 12 (December 2006): 1196–204. http://dx.doi.org/10.1177/000313480607201209.
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Vitamin deficiency after gastric bypass surgery is a known complication. The purpose of this study was to measure the incidence of vitamin deficiency after laparoscopic Roux-en-Y gastric bypass in a university hospital setting. All patients who underwent laparoscopic Roux-en-Y gastric bypass from January 2002 to December 2004 and completed a 1- and 2-year follow-up after surgery were selected. Of the total 493 patients, 318 (65%) had vitamin results at 1-year follow-up. Of the 366 eligible for the 2-year follow-up, 141 (39%) had vitamin results. Patients were further grouped based on gender, race, and Roux limb length, and incidence of vitamin deficiencies were studied. The incidence of vitamin A (retinol) deficiency was 11 per cent, vitamin C was 34.6 per cent, vitamin D25OH was 7 per cent, vitamin B1 was 18.3 per cent, vitamin B2 was 13.6 per cent, vitamin B6 was 17.6 per cent, and vitamin B12 was 3.6 per cent 12 months after surgery. There was no statistical difference in the incidence of vitamin deficiencies between 1 and 2 years. In univariate and multivariate logistic regression of 1- and 2-year follow up, black patients (vitamins A, D, and B1 for 1 year and B1 and B6 for 2 years) and women (vitamin C at 1 year) were more likely to have vitamin deficiencies. Vitamin deficiencies after laparoscopic Roux-en-Y gastric bypass are more common and involve more vitamins, even those that are water soluble, than previously appreciated. Black patients tend to have more deficiencies than other groups. The bariatric surgeon should be committed to the long-term follow-up and care of these patients. Further prospective and randomized studies are necessary to provide appropriate guidelines for supplementation.
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Hilda Yanti Br Torus Pane, Deddy Wahyudin Purba, Ansoruddin Ansoruddin, Syafrizal Hasibuan, and Tari Anggun Prasasti. "OPTIMASI VITAMIN B1 PADA SETEK PUCUK JAMBU MADU DELI (Syzygium samarangense." Journal of Scientech Research and Development 5, no. 2 (December 31, 2023): 1171–77. http://dx.doi.org/10.56670/jsrd.v5i2.305.
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Penelitian ini dilaksanakan di Rumah Kasa Fakultas Pertanian Universitas Asahan. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) Non Faktorial dengan satu faktor dan lima ulangan. Faktor konsentrasi pemberian Vitamin B1 terdiri dari 5 taraf yaitu B1 = 0 ppm, B2 = 250 ppm, B3 = 500 ppm, B4 = 750 ppm, B5 = 1000 ppm. Keberhasilan stek pucuk dipengaruhi oleh ZPT (zat pengatur tumbuh) dalam hal ini Vitamin B1 dan hormon termasuk ke dalam ZPT, Vitamin B1 (Thiamin) merupakan ZPT yang banyak digunakan untuk stek, sehingga perlu dilakukan penelitian untuk mendapatkan konsentrasi Vitamin B1 yang tepat untuk meningakatkan keberhasilan stek pucuk pada Jambu Madu Deli. Vitamin B1 juga bersifat merangsang aktivitas hormon yang terdapat dalam jaringan tanaman yang mendorong pembelahan dan pembelahan sel serta membentuk sel-sel baru. Analisis keragaman menunjukkan bahwa penggunaan Vitamin B1 berpengaruh terhadap Pertambahan panjang pucuk, Jumlah pucuk mati, dan Jumlah akar pada Stek Pucuk Jambu Madu Deli
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Coad, Ross, and Lan Bui. "Stability of Vitamins B1, B2, B6 and E in a Fortified Military Freeze-Dried Meal During Extended Storage." Foods 9, no. 1 (January 2, 2020): 39. http://dx.doi.org/10.3390/foods9010039.
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Australian military ration packs contain a variety of processed foods, including some that are fortified with vitamins. In this study, freeze-dried meals, a key component of lightweight patrol ration packs, were fortified at the time of packing by direct addition of a vitamin premix containing vitamins B1, B2, B6 and E. Fortification was at three levels: 50%, 100% and 200% of the recommended vitamin content for military ration packs. Vitamin stability was determined following storage at temperatures of 1 °C, 30 °C and 40 °C for up to 24 months. HPLC methods were used to measure vitamin content; water activity and colour were also determined. Mean 24-month retention rates across all temperatures and fortification levels were 94%, 97%, 86% and 77% for vitamins B1, B2, B6 and E, respectively. Water activity increased with storage temperature, whereas colour changes due to fortification and storage temperature were at the threshold of visual detection. Fortification of freeze-dried meals would be an effective means of improving the quality of light weight military ration packs by addressing shortfalls in vitamin levels.
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Navrátilová, Pavlína, Ivana Borkovcová, Lenka Kaniová, Sandra Dluhošová, and Hana Zachovalová. "The content of selected vitamins and iodine in mare’s milk." Acta Veterinaria Brno 88, no. 4 (2019): 473–80. http://dx.doi.org/10.2754/avb201988040473.
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The aim of the study was to contribute to scarce literature data on the content of selected vitamins and iodine in mare’s milk. The study focused on the content of selected lipophilic vitamins (A, E), hydrophilic vitamins B1, B2, B6) and iodine in milk samples obtained from 8 mares during 6 months of lactation. The content of micronutrients was evaluated according to the stage of lactation. Vitamins B2 and B6 were determined using ion-pair reversed phase high performance liquid chromatography with fluorescence detection, vitamin B1 by fluorescence detection by reversed-phase liquid chromatography, vitamins A and E by the ultra-high performance liquid chromatography method with ultraviolet and fluorescence detection and iodine by the spectrophotometric method. Mean concentrations of vitamins A (0.06 ± 0.08 mg/l), E (0.083 ± 0.14 mg/l), B1 (256.24 ± 44.19 µg/l), B2 (111.40 ± 81.88 µg/l), B6 (0.30 ± 0.12 mg/l) reached lower values in mare’s milk compared to cow’s milk. The mean value of iodine in mare’s milk reached 44.48 ± 54.45 µg/l. Lactation stage proved to be a significant factor for vitamin B6 and iodine.
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Schümann. "Interactions Between Drugs and Vitamins at Advanced Age." International Journal for Vitamin and Nutrition Research 69, no. 3 (May 1, 1999): 173–78. http://dx.doi.org/10.1024/0300-9831.69.3.173.
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Drug consumption increases at advanced age due to increased morbidity. At the same time the state of repletion is reduced for several vitamins. Physiological and kinetic alterations in the elderly are reviewed in order to analyse possible interrelations between these two phenomena. At high age the status of all vitamins is compromised by reduced food intake. Decreased active intestinal transport and an increased propensity for atrophic gastritis may reduce the absorption of vitamins A, B1, folate and B12. Decreased exposure to sunlight and reduced cutaneous synthesis impair the vitamin D status. Studies on the state of vitamin repletion in hospital patients indicate a specific response of vitamins A, B1, B6 and C to drug administration at advanced age. Reduced food intake in the elderly is further compromised by drugs that impair appetite and absorption. Anticonvulsives and other drugs that induce hepatic microsomal enzymes accelerate vitamin D metabolism and aggravate postmenopausal osteoporosis. Acid inhibiting agents increase achlorhydria and reduce vitamin B12 absorption. Renal clearance of acidic drugs such as acetylsalicylic acid and barbituric acid, which is impaired at high age, is further reduced by high doses of vitamin C. Vitamin B6 reduces the therapeutic effect of L-dopa. When recognised, the negative effects of drug-vitamin interactions can be compensated by adequate vitamin supplementation and by adaptation of drug dosing.
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MADHUSUDHAN, S., P. N. DAKSHAYINI, M. BHUSHANAM, and ARUN JYOTHI MATHIAS AND I. D. ABHINANDINI. "Bioactive Vitamin Profile Evaluation in Multifloral Apis Honey." JOURNAL OF ENVIRONMENT AND BIO-SCIENCE 37, no. 02 (December 2023): 145. http://dx.doi.org/10.59467/jebs.2023.37.145.
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Honey offers distinct nutritional and health advantages as well as organoleptic characteristics. Customers strongly value it not only as food but also as a medicinal and cosmetic element. Honey is mostly consisting of carbohydrates, which contribute to 95?97% of the dry weight. Honey also includes significant elements such as proteins, organic acids, vitamins, and amino acids. Because honey composition varies depending on local flora, it may be characterized by source or kind. The commercial value of monofloral honey may be greater than that of multifloral honey. The mix of volatile substances present in low amounts gives honey its distinctive aroma. In this investigation, thirty-five multifloral honeys from Coorg were selected for vitamin profiling using the high-performance liquid chromatography method. Seven vitamins of Apis honey, namely riboflavin (B2), thiamine (B1), pyridoxine (B6), cobalamin (B12), pantothenic acid (B5), riboflavin (B2), ascorbic acid (C), and niacin (B3), were analyzed. Seven vitamins of Apis honey, namely riboflavin (B2), thiamine (B1), pantothenic acid (B5), niacin (B3), pyridoxine (B6), cobalamin (B12), and ascorbic acid (C), were analyzed. The total quantity of the analytes in the samples showed the highest concentration of Vitamin B6 and Vitamin C with 23.87 and 24.98 mg/100 g for Apis florea honey, respectively. Vitamin B1 ranged from 5.23 to 7.45, B2 from 8.25 to 10.42, B3 from 9.96 to 12.33, and B5 from 6.41 to 8.56 mg/100 g of Apis honey samples. However, Vitamin B12 showed an insignificant concentration of 0.001 g/100 g of Apis honey. . KEYWORDS :Apis honey, Honey quality, Mutilfloral honey, Vitamin profile
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O'Neill, Caroline Ciaciuch, Aveline P. Langmead, and Kota V. Ramana. "Abstract 7311: Lipid soluble vitamin B1 derivatives, benfotiamine and fursultiamine, prevent breast cancer cells growth." Cancer Research 84, no. 6_Supplement (March 22, 2024): 7311. http://dx.doi.org/10.1158/1538-7445.am2024-7311.
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Abstract Breast cancer is the leading cause of cancer death in women in the US and the second leading cancer after skin cancer in women worldwide. According to the CDC, women from 45-84 years of age are most at risk, with approximately 30% of deaths in this group being from cancer. Increased free radical formation, and oxidative and inflammatory responses have been shown to be major contributing factors for the progression of breast cancer. Several antioxidants and vitamins have been tested for their efficacy in preventing breast cancer. However, the role of vitamin B1 derivatives in the prevention of breast cancer is not known. Therefore, we hypothesize that with potent anti-oxidative and anti-inflammatory actions, lipid-soluble derivatives of vitamin B1 (thiamine), such as benfotiamine and fursultiamine, could prevent breast cancer growth and spread. We have treated human breast cancer cells such as MCF-7 and T-4D1 and mouse breast cancer cells 4T1 with vitamin B1 derivatives and examined the cancer cells growth. Our results indicate that treatment of various breast cancer cells with benfotiamine and fursultiamine prevents the proliferation of cancer cells in a dose-dependent manner. Further, both benfotiamine and fursultiamine by regulating the activation of caspase-3 and cleavage of PARP protein could prevent breast cancer cells growth. Benfotiamine and fursultiamine also regulates generation of reactive oxygen species in breast cancer cells. Further, vitamin B1 derivatives regulate the expression of various anti-apoptotic, pro-apoptotic, survival and inflammatory factors in both human and mouse breast cancer cells. We next planned to examine the effect of vitamin B1 derivatives on breast cancer growth in vivo using athymic nude mouse models. In conclusion, our in vitro results suggest that vitamin B1 derivatives, benfotiamine and fursultiamine, by promoting the apoptotic pathways prevent breast cancer cells growth and could be further developed as chemopreventive drugs. Citation Format: Caroline Ciaciuch O'Neill, Aveline P. Langmead, Kota V. Ramana. Lipid soluble vitamin B1 derivatives, benfotiamine and fursultiamine, prevent breast cancer cells growth [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 7311.
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Ortí, Jose Enrique de la Rubia, María Cuerda-Ballester, Eraci Drehmer, Sandra Carrera-Juliá, María Motos-Muñoz, Cristina Cunha-Pérez, María Benlloch, and María Mar López-Rodríguez. "Vitamin B1 Intake in Multiple Sclerosis Patients and its Impact on Depression Presence: A Pilot Study." Nutrients 12, no. 9 (August 31, 2020): 2655. http://dx.doi.org/10.3390/nu12092655.
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Vitamin B1, or thiamine, is one of the most relevant vitamins in obtaining energy for the nervous system. Thiamine deficiency or lack of activity causes neurological manifestations, especially symptoms of depression, intrinsic to multiple sclerosis (MS) and related to its pathogenesis. On this basis, the aim of this study was to determine the possible relationship between the nutritional habits of patients with MS and the presence of depression. Therefore, a cross-sectional and observational descriptive study was conducted. An analysis of dietary habits and vitamin B1 consumption in a Spanish population of 51 MS patients was performed by recording the frequency of food consumption. Results showed a vitamin B1 intake within the established range, mainly provided by the consumption of ultra-processed products such as cold meats or pastries, and a total carbohydrate consumption lower than recommended, which stands out for its high content of simple carbohydrates deriving from processed foods such as dairy desserts, juice, snacks, pastries, chocolate bars, soft drinks and fermented alcohol. In addition, a significant negative correlation between depression and the intake of thiamine and total carbohydrates was observed. These findings could explain the influence of MS patients’ eating habits, and consequently vitamin B1 activity, on depression levels.
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Lima, Hope K., Kenneth Vogel, Daniela Hampel, Montana Wagner-Gillespie, and April D. Fogleman. "The Associations Between Light Exposure During Pumping and Holder Pasteurization and the Macronutrient and Vitamin Concentrations in Human Milk." Journal of Human Lactation 36, no. 2 (April 15, 2020): 254–63. http://dx.doi.org/10.1177/0890334420906828.
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Background During pumping, storage, and pasteurization human milk is exposed to light, which could affect the concentrations of light-sensitive vitamins. Currently, milk banks do not regulate light exposure. Research Aim The aim of this paper was to determine the influence of light exposure during pumping, storage, and pasteurization on (1) macronutrients, (2) select water-soluble vitamins, and (3) select fat-soluble vitamins. Methods All 13 participants donated 4 milk samples each. Each sample underwent 1 of 4 treatments: raw and light protected, raw and light exposed, pasteurized and light protected, and pasteurized and light exposed. Samples were analyzed for macronutrients and Vitamins B1, B2, retinol, γ-tocopherol, α-tocopherol, and β-carotene. Results β-carotene concentrations were not influenced by light exposure. Vitamin B1 was significantly ( p < 0.05) affected by light-exposure ( M = 0.23, SD = 0.01mg/L) compared to light-protected ( M = 0.27, SD = 0.01mg/L) samples. Vitamin B2 concentrations were reduced ( p < 0.05) by light-exposure in raw ( M = 62.1, SD = 0.61µg/L) and pasteurized ( M = 73.7, SD = 0.72µg/L) samples compared to light-protected raw samples ( M = 99.7, SD = 0.66µg/L). No other tested nutrients were affected by light exposure. Conclusions If milk is exposed to excessive amounts of light, Vitamins B1 and B2 concentrations may degrade below the current Adequate Intake recommendations for infants 0–6 months of age, increasing the risk of insufficient vitamin supply to the exclusively human milk-fed infant. Thus, pumped or processed human milk should be protected from light to preserve milk vitamin concentrations.
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Rosdiana, Rosdiana, Dahlia Nurdin, and Satriani Satriani. "UJI EFEKTIVITAS VITAMIN B1 YANG DIAPLIKASIKAN PADA TANAMAN MONSTREA (Monstrea deliciosa ) DENGAN PERBANYAKAN MELALUI SULUR." Jurnal Agroterpadu 2, no. 3 (December 24, 2023): 348. http://dx.doi.org/10.35329/ja.v2i3.4240.
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Salah satu tanaman hias dalam ruangan dengan daun yang sangat indah yang bisa dinikmati sepanjang tahun adalah monstera deliciosa. Keinginan akan tanaman yang menarik meningkat seiring dengan pendapatan masyarakat. Oleh karena itu diperlukan suatu metode penanaman yang diharapkan dapat menghasilkan perkembangan dan hasil yang maksimal agar dapat memenuhi kebutuhan dan permintaan tanaman Monstera deliciosa. Pada bulan Februari hingga April 2022, penelitian ini dilakukan di Desa Batetangnga, Kecamatan Binuang, Kabupaten Polewali Mandar, Provinsi Sulawesi Barat. Tujuannya untuk mengevaluasi khasiat vitamin B1 bila diberikan pada tanaman hias Monstera deliciosa yang diperbanyak menggunakan sulur. Pendekatan Rancangan Acak Kelompok (RAK) digunakan dalam penelitian Penelitian ini menggunakan salah satu faktor, yaitu pemberian dosis vitamin B1 yang berbeda pada stek pucuk sulur. Ada lima kombinasi perlakuan yang masing-masing diterapkan tiga kali: S0 = tanpa perlakuan, S1 = pemberian vitamin B1 dengan dosis 1 cc/l air, S2 = pemberian vitamin B1 dengan dosis 2 cc/l air, S3 = pemberian vitamin B1 dengan dosis 3 cc/l air, dan S4 = pemberian vitamin B1 pada Temuan menunjukkan bahwa tinggi tanaman, jumlah daun, dan jumlah sulur tidak terpengaruh oleh injeksi vitamin B1 dengan dosis 3 cc/l air (S3), namun memiliki dampak yang sangat besar pada parameter waktu. untuk kemunculan tunas.
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Journal, Baghdad Science. "A novel online coupling of ion selective electrode with the flow injection system for the determination of vitamin B1." Baghdad Science Journal 13, no. 2 (June 5, 2016): 458–69. http://dx.doi.org/10.21123/bsj.13.2.458-469.
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A simple, fast, selective of a new flow injection analysis method coupled with potentiometric detection was used to determine vitamin B1 in pharmaceutical formulations via the prepared new selective membranes. Two electrodes were constructed for the determination of vitamin B1 based on the ion-pair vitamin B1-phosphotungestic acid (B1-PTA) in a poly (vinyl chloride) supported with a plasticized di-butyl phthalate (DBPH) and di-butyl phosphate (DBP). Applications of these ion selective electrodes for the determination of vitamin B1 in the pharmaceutical preparations for batch and flow injection systems were described. The ion selective membrane exhibited a near-Nernstian slope values 56.88 and 58.53 mV / decade, with the linear dynamic range of vitamin B1 was 5 x 10-5- 1 x 10-2 and 1 x 10-4-1 x 10-2 mol.L-1, in batch and FIA, respectively. The limit of detection was 3.5 x 10-5 and 9.5 x 10-5 mol.L-1, with the percentage linearity 98.85 and 95.22 in batch and FIA, respectively. The suggested ion selective electrode has been utilized perfection in the determination of vitamin B1 in pharmaceutical formulations using batch and flow injection system, respectively.
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Miyazaki, Aiko, Mitsue Sano, Tsutomu Fukuwatari, and Katsumi Shibata. "Effects of ethanol consumption on the B-group vitamin contents of liver, blood and urine in rats." British Journal of Nutrition 108, no. 6 (December 15, 2011): 1034–41. http://dx.doi.org/10.1017/s0007114511006192.
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Several studies have shown that blood vitamin levels are lower in alcoholic patients than in control subjects. Acute ethanol exposure enhances the release of vitamins from liver cells in vitro. The aim of the present study is to confirm the effects of ethanol consumption on vitamin contents in vivo. We compared the contents of B-group vitamins in the liver, blood and urine between ethanol-fed and control rats fed a diet containing a sufficient- and low-vitamin mixture. The experimental rats were fed a 15 % ethanol solution freely for 28 d, and then 24 h urine samples were collected, after which the animals were killed. The B-group vitamin contents in the liver, blood and urine were measured. No differences in liver, blood and urine contents were observed between the control and ethanol-fed rats fed a diet containing a sufficient-vitamin mixture. On the contrary, in rats fed a diet containing a low-vitamin mixture, consumption of ethanol caused a decrease in the contents of vitamins B1, B2 and pantothenic acid in the liver; however, the contents of the other vitamins did not decrease. In the blood, the contents of vitamins B1, B2, B6 and pantothenic acid were lower in the ethanol-fed rats than in the controls. Urinary excretion of the B-group vitamins, except for niacin, was lower in the ethanol-fed rats. These results show that ethanol consumption affects the absorption, distribution and excretion of each of the vitamins in rats fed a diet containing a low-vitamin mixture.
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Bozic, Marija, Marija Milenkovic, Dragan Pavlovic, Miroslav Stamenkovic, and Aleksandra Pavlovic. "Vitamin B1, eye and brain." Srpski arhiv za celokupno lekarstvo, no. 00 (2022): 19. http://dx.doi.org/10.2298/sarh210929019b.
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Vitamin B1 (aneurin, thiamine) is a water-soluble vitamin necessary for the normal function of the nervous system, visual system and heart and is part of important enzymes in the body. Thiamine enables the normal use of glucose, other carbohydrates and proteins, and enables the supply of energy to the organism. The main sources of thiamine are exogenous and small amounts are synthesized by microorganisms of the human intestinal microbiome. Vitamin B1 cannot accumulate in the body, so signs of deficiency are quickly manifested. Hypovitaminosis B1 is seen in chronic ethyl abuse, persistent vomiting (as in some pregnant women) or after bariatric surgical procedures, but in a mild form it is present in the general population. Normal daily needs for vitamin B1 depend on calorie intake, and 0.4 mg should be ingested for every 1000 kcal.
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Fenti, Fenti, Agustinus Widodo, and Jamaluddin Jamaluddin. "Analisis Kandungan Vitamin B Pada Ikan Sidat (Anguilla Marmorata (Q.) Gaimard) Fase Elver Asal Danau Poso." Ghidza: Jurnal Gizi dan Kesehatan 2, no. 2 (December 24, 2018): 49–54. http://dx.doi.org/10.22487/ghidza.v2i2.8.
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Latar Belakang & Tujuan : Vitamin merupakan zat-zat organik kompleks yang diperlukan tubuh dalam jumlah yang kecil, umumnya tidak dapat disintetis oleh tubuh tetapi penting dalam proses metabolik salah satunya adalah vitamin B. Vitamin B terdiri dari vitamin B1, B2, B3, B6, B9 danB12. Sidat merupakan salah satu ikan yang memiliki kandungan nutrisi yang tinggi salah satunya vitamin B. Penelitian ini dilakukan untuk menentukan kadar vitamin B (B1, B2, B3, B6, B9, B12) pada ikan sidat (Anguilla marmorata (Q.) Gaimard) fase elver asal danau Poso . Bahan dan Metode : Penentuan kadar vitamin B1, B2, B3, B6, dan B9 menggunakan metode KCKT (Kromatografi Cair Kinerja Tinggi), dan pada vitamin B12 menggunakan metode LC-MS (Liquid Chromatography–Mass Spectrometry). Hasil : Vitamin B2 dengan kadar 0,133 mg/100g, vitamin B3 dengan kadar 1,895 mg/100g, dan vitamin B12 dengan kadar 0,017mg/100g sedangkan pada vitamin B1, B6, dan B9 tidak terdeteksi adanya kadar. Kesimpulan : Ikan sidat (Anguilla marmorata (Q.) Gaimard) fase elver asal danau Poso dapat dijadikan sumber vitamin B2, B3, dan B12.