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Статті в журналах з теми "Zinc concentration"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

Hess, Sonja Y., Janet M. Peerson, Janet C. King, and Kenneth H. Brown. "Use of Serum Zinc Concentration as an Indicator of Population Zinc Status." Food and Nutrition Bulletin 28, no. 3_suppl3 (2007): S403—S429. http://dx.doi.org/10.1177/15648265070283s303.

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Assessing the prevalence and severity of zinc deficiency in populations is critical to determine the need for and appropriate targeting of zinc intervention programs and to assess their effectiveness for improving the health and well-being of high-risk populations. However, there is very little information on the zinc status of populations worldwide due to the lack of consensus on appropriate biochemical indicators of zinc status. The objective of this review was to evaluate the use of serum zinc concentration as an indicator of population zinc status. We have reviewed the response of serum zi

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2

Ohno, H., K. Yamashita, R. Doi, K. Yamamura, T. Kondo, and N. Taniguchi. "Exercise-induced changes in blood zinc and related proteins in humans." Journal of Applied Physiology 58, no. 5 (1985): 1453–58. http://dx.doi.org/10.1152/jappl.1985.58.5.1453.

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Effects of cycle ergometer exercise (approximately 75% maximum ventilatory O2 consumption for 30 min) on the concentrations of zinc and related proteins in erythrocytes and/or plasma were studied on 11 sedentary male students. Lower concentrations of total zinc and of zinc derived from carbonic anhydrase I type (CA-I) in erythrocytes were observed immediately after exercise, but they disappeared after 30 min of rest. The change in total zinc concentration in erythrocytes correlated well with that in CA-I concentration immediately after exercise, as well as after rest. The concentration of carb

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3

SOPER, R. J., G. W. MORDEN, and M. W. HEDAYAT. "THE EFFECT OF ZINC RATE AND PLACEMENT ON YIELD AND ZINC UTILIZATION BY BLACKBEAN (Phaseolus vulgaris var. Black Turtle)." Canadian Journal of Soil Science 69, no. 2 (1989): 367–72. http://dx.doi.org/10.4141/cjss89-036.

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Growth chamber experiments were conducted to investigate the effect of size of fertilizer reaction zone, rate of added zinc and method of placement of added zinc on the dry matter yield, zinc concentration and zinc uptake of blackbeans grown on a calcareous soil. Relationships between zinc concentrations in the plant, zinc utilization by the plant and zinc concentration in the soil reaction zone were obtained. An equation was developed relating zinc utilization to zinc concentration in the fertilizer band, and a figure was derived showing how increasing the size of the fertilizer zone impacts

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4

Alker, Schwerdtle, Schomburg, and Haase. "A Zinpyr-1-based Fluorimetric Microassay for Free Zinc in Human Serum." International Journal of Molecular Sciences 20, no. 16 (2019): 4006. http://dx.doi.org/10.3390/ijms20164006.

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Zinc is an essential trace element, making it crucial to have a reliable biomarker for evaluating an individual’s zinc status. The total serum zinc concentration, which is presently the most commonly used biomarker, is not ideal for this purpose, but a superior alternative is still missing. The free zinc concentration, which describes the fraction of zinc that is only loosely bound and easily exchangeable, has been proposed for this purpose, as it reflects the highly bioavailable part of serum zinc. This report presents a fluorescence-based method for determining the free zinc concentration in

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5

Al-Alawy, Ahmed Faiq, and Miqat Hasan Salih. "Experimental Study and Mathematical Modelling of Zinc Removal by Reverse Osmosis Membranes." Iraqi Journal of Chemical and Petroleum Engineering 17, no. 3 (2016): 57–73. http://dx.doi.org/10.31699/ijcpe.2016.3.5.

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In this study, aromatic polyamide reverse osmosis membranes were used to remove zinc ions from electroplating wastewater. Influence of different operating conditions such as time, zinc concentration and pressure on reverse osmosis process efficiency was studied. The experimental results showed, concentration of zinc in permeate increase with increases of time from 0 to 70 min, and flux of water through membrane decline with time. While, the concentrations of zinc in permeate increase with the increase in feed zinc concentration (10–300 mg/l), flux decrease with the increment of feed concentrat

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6

Bilqis, Nabilah, Erni Sulistiawati, and Miftakh Nur Rahman. "Application of The Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) Method in Zinc Analysis." JURNAL SAINS NATURAL 12, no. 1 (2022): 23. http://dx.doi.org/10.31938/jsn.v12i1.321.

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Zinc is a nutrient that affects cell growth, helps the body's metabolism, activates T cells (T lymphocytes), cell regeneration, and repairs body tissues. Zinc in the body undergoes a process of excretion every day, therefore daily intake of zinc needs to be considered to maintain the amount of zinc in the body in a normal amount. This study aimed to obtain information on the application of the Inductively coupled plasma-mass spectrometry (ICP-MS) method to determine the concentration of zinc in the serum of pregnant women. The application of Inductively coupled plasma-mass spectrometry (ICP-MS

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7

Suhonosenko, Denis S. "Study of the Character of Soil Pollution with Zinc and Cadmium Along the Roads of the City of Volzhsky." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 2 (218) (June 23, 2023): 121–29. http://dx.doi.org/10.18522/1026-2237-2023-2-121-129.

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The character of zinc and cadmium pollution of the roadside soil of the city of Volzhsky is analyzed. Exceedings of approximately permissible concentrations of total forms of zinc and cadmium in the soil were not found. The concentration of zinc in the soil near the highways of the city of Volzhsky does not correlate with the concentration of cadmium. The influence of the intensity and structure of the traffic flow, the level of landscaping and the age of development on the spatial dynamics of the concentrations of zinc and cadmium in the soil was studied. Near highways with heavy traffic, the

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8

R, KRISHNASAMY. "ZINC ADSORPTION IN VERTISOLS AND INCEPTISOLS OF TAMIL NADU." Madras Agricultural Journal 78, March Augest (1991): 241–44. http://dx.doi.org/10.29321/maj.10.a01858.

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Zinc adsorption in sixteen surface soil samples of Vertisol and Inceptisol was studied over a wide range of zinc solution concentrations (2.5 to 200 ppm). The zinc adsorption data conformed to Freundlich equation for the entire range of concentration tested. The Freundlich constants 'k' and 'n' were derived for zinc in these soils. The 'k' values ranged from 0.28 to 1.78 mg Zn/g with a mean value of 0.83 mg Zn/g soil. The 'k' values were significantly related to clay, CEC, silt, ex. calcium and free CaCO3. Multiple regression analysis revealed that zine adsorption can be predicted with good pr

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9

Abbas, Fatma, and Heiyam Najy Hady. "Determination of the concentration of Aluminum and Zinc in adult teeth samples in Al-Najaf Governorate, Iraq." Journal of Kufa-Physics 15, no. 02 (2023): 146–53. http://dx.doi.org/10.31257/2018/jkp/2023/v15.i02.12850.

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The primary objective of this study was to assess the potential effects of aluminium (Al) and zinc (Zn) on oral health by determining their concentrations in adult teeth samples. Teeth of materials, such as implants and restorative products, often contain small amounts of metallic elements that can interact with the oral environment and impact a patient's health. To quantitatively analyze the concentrations of Al and Zn in teeth samples collected from adults, atomic absorption spectroscopy was used. The results showed the concentration of two metals: Aluminium (Al) and Zinc (Zn) in the teeth o

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10

Harland, A. D., G. W. Bryan, and B. E. Brown. "Zinc and cadmium absorption in the symbiotic anemone Anemonia viridis and the non-symbiotic anemone Actinia equina." Journal of the Marine Biological Association of the United Kingdom 70, no. 4 (1990): 789–802. http://dx.doi.org/10.1017/s0025315400059063.

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Field and experimental observations on sea anemones (Actinaria) Ammonia viridis (Forskål) and Actinia equina (L.) indicated that in both species body zinc concentrations usually ranged between 100 and 200 ug (g dry wt)1 in waters containing up to 200 μg I1 of the metal. At higher dissolved concentrations, as observed in Restronguet Creek, A. equina exhibited only slightly enhanced tissue levels. However, in the laboratory, zinc levels in Anemonia viridis increased markedly at sea-water concentrations exceeding 200 μg I”1. Studies on the uptake of 65Zn-labelled zinc showed that, when the sea-wa

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11

Miyazawa, Tokuo, Madoka Shirai, Yutaro Noguchi, et al. "Zinc Concentration in Breast Milk Is Inversely Correlated with the Zinc Supplementation Requirements of Preterm Infants." Nutrients 17, no. 5 (2025): 840. https://doi.org/10.3390/nu17050840.

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Background: Zinc is an essential trace element that is crucial for numerous biological processes, including protein synthesis, antioxidant activity, and bone calcification. Preterm infants are at high risk of zinc deficiency owing to inadequate zinc stores at birth and the rapid decline in zinc concentration in breast milk. This study aimed to evaluate the relationship between zinc concentrations in breast milk and zinc supplementation in preterm infants. Methods: A prospective observational study was conducted at Showa University Hospital, enrolling preterm infants born at less than 32 weeks

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12

Suliburska, Joanna, Katarzyna Skrypnik, Monika Szulińska, Justyna Kupsz, Leszek Markuszewski, and Paweł Bogdański. "Diuretics, Ca-Antagonists, and Angiotensin-Converting Enzyme Inhibitors Affect Zinc Status in Hypertensive Patients on Monotherapy: A Randomized Trial." Nutrients 10, no. 9 (2018): 1284. http://dx.doi.org/10.3390/nu10091284.

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Background: Antihypertensive drugs affect mineral metabolism, inflammation, and the oxidative state. The aim of this study was to evaluate the effects of antihypertensive monopharmacotherapy with diuretics, β-blockers, calcium antagonists (Ca-antagonists), angiotensin-converting enzyme inhibitors (ACE-I), and angiotensin II receptor antagonists (ARBs) on zinc (Zn), iron (Fe), and copper (Cu) status, parameters of oxidative and inflammatory states, and glucose and lipid metabolism in patients with newly diagnosed primary arterial hypertension (AH). Methods: Ninety-eight hypertensive subjects re

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13

Wanitwisutchai, Tanawan, Naruporn Monmaturapoj, Ratchapin Srisatjaluk, et al. "Antibacterial Properties among Different Concentration of Bioactive Glasses." Key Engineering Materials 814 (July 2019): 349–53. http://dx.doi.org/10.4028/www.scientific.net/kem.814.349.

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The objective of this study was to evaluate the antibacterial properties and pH changes of bioactive glasses and zinc oxide nanowire in different concentrations. Bioactive glasses (45S5 and 45S5F) were prepared in three concentrations of 10, 20, and 50 mg/ml and zinc oxide nanowire was prepared in 1 and 5 mg/ml concentrations. The materials were exposed to 500 ml brain heart infusion broth (BHI) with 1.5 x 107 of S.mutans and S.sanguinis separately. Antibacterial properties were tested indirectly by collecting 100 ml of each sample and transferred into a 96 well-plate. The optical density (OD)

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14

Ulster, Ruqia Hisham Abd, Rabiha Salih Yaseen, and Firas Farhan Sayyid. "Electrodeposition of Zinc from Galvanized Steel." Journal of University of Babylon for Engineering Sciences 27, no. 1 (2019): 394–408. http://dx.doi.org/10.29196/jubes.v27i1.2189.

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In this work, the effect of voltage and concentration on the properties of zinc powder (purity, morphology, and apparent density) that produced by electrodeposition process from industrial waste (galvanized steel) was studied. In Electrodeposition process, used sulfuric acid H₂SO₄ with concentration 0.2M and zinc sulphate heptahydrate ZnSO₄.7H₂O in three different concentrations (100, 75, and 50) M, The time of deposition is 10 mins, three electrodes were used, the distance between electrodes was 3cm for all experiments and the PH of solutions were 0.3, 0.4, 0.6 for three concentrations respec

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15

Mahmoud Odah, Marwan, and Kadhim Makki Naser. "Effect of Humic acid and levels of Zinc and Boron on Chemical Behavior of Zinc in Calcareous Soil." Journal of Environmental & Earth Sciences 6, no. 3 (2024): 143–55. http://dx.doi.org/10.30564/jees.v6i3.7126.

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There are global concerns about the significant increase in the concentrations of heavy elements due to the increase in agricultural, urban and industrial activities, which poses a threat to the natural environment and humans. This study focused on studying the addition of humic acid and different levels of zinc on the presence of zinc in the soil in its different forms and its readiness for the plant to find the best concentration and with the presence or absence of humic acid. This study was carried out on the sunflower crop, as zinc was added at levels of (0, 15 and 30) kg h-1 and humic aci

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16

Salmenperä, Leena, Jaakko Perheentupa, Veikko Näntö, and Martti A. Siimes. "Low Zinc Intake During Exclusive Breast‐Feeding Does Not Impair Growth." Journal of Pediatric Gastroenterology and Nutrition 18, no. 3 (1994): 361–70. http://dx.doi.org/10.1002/j.1536-4801.1994.tb11189.x.

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We studied zinc nutrition in exclusively breast‐fed infants whose growth deviated from the norm. Their number fell from 200 at birth to 116 at the age of 6 months and 36 at the age of 9 months. The mothers received 0, 20, or 40 mg Zn+ + as sulfate daily. Breast milk intake and concentrations of zinc in milk as well as in maternal and infant serum were measured. Individual zinc concentrations in milk showed channeling. The 20‐mg supplement had no effect on the parameters measured. In contrast, 40 mg increased the maternal serum zinc concentration by 2 months and slowed the normal decline of mil

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17

Astari, Siti Alysha, Suherman Suherman, and Mudasir Mudasir. "Soil Toxicity Around the Textile Industry in Bantul using Spinach Seeds (Amaranthus gangeticus) and Bean Sprouts (Phaseolus aureus)." Molekul 19, no. 1 (2024): 1. http://dx.doi.org/10.20884/1.jm.2024.19.1.5172.

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The toxicity test of zinc metal in soil samples around the textile industry in Bantul on the growth of spinach (Amaranthus gangeticus) and bean sprouts (Phaseolus aureus) has been investigated in relation with the environmental assesment for the impact of industrial activities. This research was conducted to study physicochemical properties, adsorption-desorption, and zinc metal toxicity in the soil around the textile industry on the growth of spinach and bean sprouts. The study of physicochemical properties were water content, pH, electrical conductivity, ash content, total organic carbon, ca

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18

Dodic, Sinisa, Stevan Popov, and Jelena Dodic. "Investigation of zinc biosorption by brewer's yeast cells." Zbornik Matice srpske za prirodne nauke, no. 108 (2005): 239–45. http://dx.doi.org/10.2298/zmspn0508239d.

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The highest amount of zinc (= 90%) is bound after 3 hrs of contact at low initial (total) concentrations of zinc in suspension of yeast, 10-100 mg/l at 10-30?C. The equilibrium between bound and free zinc ions is established after 6 hrs of contact time, independently on the total zinc concentration in yeast milk. No bigger changes of content of zinc bound to brewer's yeast cells was determined at temperatures 10?C and 30?C. 40% of bound zinc in the equilibrium state is bound during the first 15 min of contact of zinc ions and brewer's yeast cells at all initial (total) zinc concentrations in s

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19

Ellwood, Michael J., Michael J. Ellwood, Keith A. Hunter, Keith A. Hunter, Jonathan P. Kim, and Jonathan P. Kim. "Zinc speciation in Lakes Manapouri and Hayes, New Zealand." Marine and Freshwater Research 52, no. 2 (2001): 217. http://dx.doi.org/10.1071/mf00073.

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A study of zinc complexation in Lakes Manapouri and Hayes revealed that zinc speciation in both lakes is dominated by its complexation to natural organic ligands. In Lake Manapouri, dissolved zinc concentrations increased from 0.9 nM in surface waters to ~1.4 nM at depth. Ligand concentrations for this lake were relatively uniform with depth, with values ranging between 2.9 and 4.2 nM. A similar ligand concentration was measured for Lake Hayes, which had a surface zinc concentration of 0.46 nM. Conditional stability constants (log K) for the complexation of zinc to these ligands were high,with

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20

Nguyen, Thi Trang*1 Trieu Tien Sang2 Nguyen Hoang3 Nguyen Tan Gia Khanh4 &. Tran Trung Duc4. "ASSESSMENT OF THE LEVEL OF SEMINAL ZINC AND FRUCTOSE CONCENTRATION IN SEMINAL PLASMA OF VIETNAMESE INFERTILE MEN." INTERNATIONAL JOURNAL OF RESEARCH SCIENCE & MANAGEMENT 5, no. 7 (2018): 71–82. https://doi.org/10.5281/zenodo.1314131.

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This study assesses the association between the fructose and zinc concentration and various seminal characteristics. Fructose and zinc in semen reflects the secretory function of seminal vesicles. These Tests may help in assessing the diagnosis and the management of male infertility. Gather semial plasma of 180 males with average age of 31.1 ± 3,6 years old. Use the specific complexant to form a stable coloured complex with fructose or zinc. The colour intensity in a determining wavelength is proportional to the amount of fructose or zinc present in the sample. Seminal fructose concentr

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21

Seregina, Inga, Daniel Akhmetzhanov, Vladimir Trukhachev, Sergey Belopukhov, Inna Dmitrevskaya, and Regina Islamgulova. "Effect of different zinc concentrations on the growth functions of spring wheat seedlings." BIO Web of Conferences 67 (2023): 02026. http://dx.doi.org/10.1051/bioconf/20236702026.

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In laboratory experiments, the effect of different concentrations of zinc on the growth processes of seedlings of spring wheat cv. Ester was studied. The optimal concentration of zinc for seed treatment before sowing was revealed. The optimal concentration of zinc has a positive effect on the length of sprouts and roots, as well as the photosynthesis of seedlings of spring wheat in the early stages of development.

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22

Stepanenko, Elizaveta Aleksandrovna, Irina Vladimirovna Volkova, Vladimir Aleksandrovich Chaplygin, and Ekaterina Kamaludinovna Isayeva. "Zinc content in organs and tissues of the Caspian fish Vimba vimba persa (Pallas, 1814)." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2025, no. 1 (2025): 95–101. https://doi.org/10.24143/2073-5529-2025-1-95-101.

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The results of a study of zinc concentrations in organs and tissues (gills, liver, genitals, muscle tissue, gastroin-testinal tract) of the Caspian fish Vimba vimba persa (Pallas) sampled in the middle part of the Caspian Sea in the autumn period of 2020-2023 are presented. The results were obtained using the appropriate atomic absorption methods. The sex and age characteristics of the metal distribution have been determined. A redistribution of zinc was noted when the fish reached puberty (the gonads and liver became indicative in our case). Age-related changes in the accumulation of zinc are

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23

Kim, Du Yeol, Chang Hee Lee, and Soon Ki Jeong. "Effect of Electrolyte Concentration on Electrochemical Properties of Zinc Hexacyanoferrate Electrode in Zinc-Ion Batteries." Key Engineering Materials 773 (July 2018): 133–37. http://dx.doi.org/10.4028/www.scientific.net/kem.773.133.

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The aqueous rechargeable zinc ion battery (ARZIB) system has been actively studied in the field of energy storage. Prussian blue analogues (PBAs) are considered effective cathode materials in the ARZIB system. In our previous study, Zn(NO3)2 solutions of different concentrations were used as electrolytes in an ARZIB system with a zinc hexacyanoferrate (ZnHCF) electrode. And the effect of electrolyte concentration on the electrochemical performance was studied. In this study, the effect of electrolyte concentration was demonstrated through electrochemical tests and Raman analysis. Charge/discha

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24

Rudolf, Kostas Sombolos, Vogl Nickolas Dombros, Dimitrios Oreopoulos, and Abraham Rapoport. "A Formula for Correcting Plasma Zinc Levels against Protein Concentration." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 6, no. 2 (1986): 83–86. http://dx.doi.org/10.1177/089686088600600210.

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Plasma zinc and total protein concentrations were measured in 13 normal volunteers, before and after a five-minute occlusion of the antecubital vein with a sphygmomanometer cuff. The percentage increment before and after five minutes of venous occlusion was 10.2 ± 4.7% for total protein and 8.8 ± 6.0% for zinc concentration. Both these differences were statistically significant (p < 0.001). We propose an equation for correction of plasma zinc levels according to concentration of total proteins. Using this equation the corrected values of plasma zinc before and after 5 minutes of venous occl

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25

Wallace, IM, B. Dell, and JF Loneragan. "Zinc Nutrition of Jarrah (Eucalyptus marginata Donn ex Smith) Seedlings." Australian Journal of Botany 34, no. 1 (1986): 41. http://dx.doi.org/10.1071/bt9860041.

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The relationships of seven levels of zinc supply to dry matter and zinc concentration were assessed for jarrah (Eucalyptus marginata Donn ex Smith) seedlings grown for 84 days in a zinc-deficient sand in the glasshouse. Zinc deficiency symptoms appeared within 28 days of sowing as a change in leaf colour of young leaves from green to bronze. Later, red areas developed and these became necrotic in severe cases. These symptoms were accompanied by decreased shoot and root dry weights. Zinc concentrations in various plant parts were low and, with the exception of the shoot apex, showed little resp

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26

Lima, Vanessa Batista de Sousa, Fabiane de Araújo Sampaio, Daila Leite Chaves Bezerra, José Machado Moita Neto, and Dilina do Nascimento Marreiro. "Parameters of glycemic control and their relationship with zinc concentrations in blood and with superoxide dismutase enzyme activity in type 2 diabetes patients." Arquivos Brasileiros de Endocrinologia & Metabologia 55, no. 9 (2011): 701–7. http://dx.doi.org/10.1590/s0004-27302011000900006.

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OBJECTIVE: This study assessed the relationship between the parameters of glycemic control, and zinc concentrations in blood and superoxide dismutase enzyme activity in type 2 diabetes patients. SUBJECTS AND METHODS: Seventy-three individuals, aged between 25 and 59 years, were divided into the experimental group (type 2 diabetes patients, n = 36) and control group (n = 37). Plasma and erythrocyte zinc concentrations, superoxide dismutase activity, and parameters of glycemic control were analyzed. RESULTS: Mean plasma zinc concentration was 74.1 ± 10.7 µg/dL and 68.8 ± 9.6 µg/dL, erythrocyte z

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27

Kimmel, P. L., D. W. Watkins, E. Slatopolsky, and C. B. Langman. "1,25(OH)2D response to combined zinc and phosphorus depletion in rats." American Journal of Physiology-Endocrinology and Metabolism 259, no. 3 (1990): E319. http://dx.doi.org/10.1152/ajpendo.1990.259.3.e319.

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To investigate the role of zinc depletion in the response of calcitriol to a single provocative stimulus, we studied vitamin D metabolites, parathyroid hormone (PTH), and mineral balance during phosphorus depletion in animals with different zinc nutritional status. Male Lewis rats (66) were pair fed normal phosphorus (NP), zinc-replete (+) or -deplete (-) diets for 2 wk. Thereafter, one-half of each paired group underwent 1 wk of phosphorus depletion (LP). Zinc-deplete animals had lower plasma zinc, and phosphorus-deplete animals had lower plasma phosphorus concentrations than respective nutri

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28

Cowan, Laine A., Jeanne A. Barsanti, John Brown, and Anant Jain. "Effects of bacterial infection and castration on prostatic tissue zinc concentration in dogs." American Journal of Veterinary Research 52, no. 8 (1991): 1262–64. http://dx.doi.org/10.2460/ajvr.1991.52.08.1262.

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Summary An Escherichia coli bacterial prostatitis was experimentally induced to determine the effect of bacterial infection on prostatic tissue zinc concentrations in castrated and gonadally intact male dogs. Five of the 22 mixedbreed dogs (group 1) had no culture evidence of infection 2 weeks after the instillation of bacteria into the prostate gland. The remaining 17 infected dogs were allotted to 2 groups; 1 group of dogs was subjected to castration (group ca, 7 dogs), and the other group of dogs was subjected to sham operation (group so, 10 dogs). The groups were divided into groups of dog

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29

Nugegoda, D., and P. S. Rainbow. "Effect of a chelating agent (EDTA) on zinc uptake and regulation by Palaemon elegans (Crustacea: Decapoda)." Journal of the Marine Biological Association of the United Kingdom 68, no. 1 (1988): 25–40. http://dx.doi.org/10.1017/s0025315400050074.

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The littoral prawn Palaetnon elegans Rathke regulates the body concentration of zinc at higher external zinc concentrations in the presence of EDTA. The dissolved zinc concentration in artificial sea water corresponding to the threshold of regulation breakdown changed from ca. 100 μg Zn 1-1 (ca. 1.53 μmol Zn 1-1) without EDTA, to ca. 316 μg Zn 1-1 (ca. 4.8 μmo1 Zn 1-1) in the presence of 8.6μmol EDTA 1-1 at 10 °C. The regulated body Zn concentration remained unchanged at 77–79 μg Zn g-1 dry wt with or without EDTA. Increased levels of EDTA in the medium decreased the rate of uptake of labelled

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Kostina, O. V., E. A. Galova, M. V. Presnyakova, and A. S. Pushkin. "Pathogenetic and prognostic aspects of copper and zinc deficiency in severely burned patients." Medical alphabet, no. 35 (January 23, 2025): 73–78. https://doi.org/10.33667/2078-5631-2024-35-73-78.

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Objective. To study the copper and zinc content in the severely burned patients’ blood serum and evaluate their capabilities as prognostic criteria for the burn disease outcome.Materials and methods. 37 patients with a burn area of 50,7±17,2 % of the body surface were examined, 7 of them died. The content of copper, zinc, albumin, globulins and prealbumin in blood serum was assessed within 14 days after receiving thermal injury.Results. A copper and zinc deficiency was found during the burn shock. In the future, the copper levels normalization and a tendency to the zinc concentration increase

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31

DE OLIVEIRA RIBAS, MARINA, MARCELA SELOW, HELOÍSA MARTINS, JOÃO ARMANDO BACHER, and WILSON DENIS MARTINS. "Zinc Concentration in Human Saliva." Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology 117, no. 2 (2014): e227. http://dx.doi.org/10.1016/j.oooo.2013.12.395.

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32

Bridges, Charles H., and Patricia Ghagan Moffitt. "Influence of variable content of dietary zinc on copper metabolism of weanling foals." American Journal of Veterinary Research 51, no. 2 (1990): 275–80. http://dx.doi.org/10.2460/ajvr.1990.51.02.275.

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SUMMARY The influence of variable zinc content (29.1, 250, 1,000 and 2,000 mg/kg of dry weight) in a basic diet containing 7.7 mg of copper/kg on the ability of weanling foals to maintain normal copper balance was investigated. Serum copper and zinc concentrations were monitored, and terminal hepatic copper and zinc contents were measured in 4 weanling foals fed the basic diet containing 29.1 mg of zinc/kg and in 2 foals each fed the higher-zinc diets. Foals fed the lower-zinc diets (29.1 and 250 mg/kg) maintained normal serum copper and zinc concentrations for 14 to 15 weeks, whereas those fe

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33

Andoni, Mihaiela, Germaine Savoiu Balint, Georgeta Maria Simu, Ramona Amina Popovici, and Horia Tudor Stanca. "Study Regarding the Presence of Zn(II) in Thermal Waters for Cosmetic Use." Revista de Chimie 68, no. 7 (2017): 1565–67. http://dx.doi.org/10.37358/rc.17.7.5717.

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The experimental investigations aimed to determine the optimal conditions for the process of zinc removal from thermal waters with the PUROLITE S920 ion exchange resin. It was determined the residual zinc concentration dependence on the amount of ion exchanger at different initial zinc concentrations in solution and different stirring times. The optimum conditions for achieving a residual concentration below 1 mg/L are: ion exchange rate 1.6 g/L, stirring time about 45 min. The PUROLITE S920 ion exchanger can be successfully used to remove very small amounts of zinc ions from the solution.

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34

M.H., Salmani, Vakili M., Abedi M., and A. Mozaffari S. "Serum levels of Magnesium, Copper and Zinc in Young Couples." International Journal of Food Science, Nutrition and Dietetics 3, no. 1 (2014): 85–88. https://doi.org/10.19070/2326- 3350-1400017.

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Анотація:

Metal ions are required for essential body functions but are toxic in excess. These have been examined critically as a potent factor in various human diseases including cardiovascular disease, cancer. This study was conducted to estimate the level of magnesium, copper and zinc in serum of young couples. The 60 young couples (30 males, 30 females) with the mean age 23.18 ± 4.31 years were included in this study. Serum elements level was measured using atomic absorption spectroscopy technique at calibration mode. The mean concentration of elements magnesium, copper and

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35

Brennan, R. F. "Residual value of zinc fertiliser for production of wheat." Australian Journal of Experimental Agriculture 41, no. 4 (2001): 541. http://dx.doi.org/10.1071/ea00139.

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Zinc deficiency is common on the sandy acidic soils in south Western Australia for grain production of wheat grown with diammonium phosphate containing low levels of zinc contamination. The effectiveness of zinc fertiliser (zinc oxide or zinc contamination of single superphosphate that were widely used for crops in south Western Australia) was measured in 1996 for grain production of wheat, for zinc applied once only to plots, either in 1996 (current zinc) or in a previous year (previous zinc) (1983, 1984, 1986, 1990, 1992). Relative to current zinc applied as zinc oxide with diammonium phosph

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36

Nasser, Huda A., and Zahra M. Al-Khafaji. "Effect of some Transition Metals and Selenium on germination of Eruca sativa Seeds." Journal of Biotechnology Research Center 4, no. 2 (2010): 54–61. http://dx.doi.org/10.24126/jobrc.2010.4.2.123.

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Анотація:

The effect of some transition metals, Nickel, Copper, Zinc and Selenium elements on Eruca sativa seeds germination was studied. Concentration (1, 10, 100, 500, 1000) ppm in sterile distilled water were used to cover the natural concentrations and the concentrations in polluted environments. Germination was recorded after 5 days. Results showed that there were inverse relationships between the number of germinated seeds and increasing in concentration of elements. The effect was mainly due to the elements, while the pH effect was very low and not exceeds 7 % except for Zinc solution which was a

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37

Nasser, Zahraa Hussein, and Kamil K. Fahad. "Study of the Heavy Metals Concentration Level in the Water and Sediment and some Tissues of the Grass Carp Ctenopharyngodon idella V. Cultured in Cages in the Euphrates River." IOP Conference Series: Earth and Environmental Science 1262, no. 7 (2023): 072064. http://dx.doi.org/10.1088/1755-1315/1262/7/072064.

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Анотація:

Abstract The current study was conducted in Thi Qar Governorate, Nasiriyah city on one of the private farms, grass carp were cultured, to determine the effect of some heavy elements (cadmium, copper and zinc) in the water and sediments of the Euphrates River, measuring the concentration of elements in some parts (gills, muscles and viscera) of grass carp fish. Water, sediment and fish samples were collected monthly from 11/8/2022 to 4/8/2023. The study also included field tests such as air and water temperature measurements, the air temperature ranged between 11-29 C, and the water temperature

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38

GOLDEN, MICHAEL H. N., and BARBARA E. GOLDEN. "Zinc Deficiency and Edema." Pediatrics 77, no. 1 (1986): 132–33. http://dx.doi.org/10.1542/peds.77.1.132a.

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To the Editor.— Kumar and Anday1 describe three premature infants presenting with edema and hypoproteinemia—the classical signs of kwashiorkor—between 5 and 9 weeks of age. Such cases are not uncommon in developing countries. Kumar and Anday's patients had low plasma zinc concentrations (43, 37, and 42 µg/dL). On this basis the authors claim that edema and hypoproteinemia is a clinical presentation of zinc deficiency not previously reported. We reported2 a clear association between "nutritional" edema and a low plasma zinc concentration in 1979; our subsequent experience has confirmed that ede

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Suara, Rahaman O., and James E. Crowe. "Effect of Zinc Salts on Respiratory Syncytial Virus Replication." Antimicrobial Agents and Chemotherapy 48, no. 3 (2004): 783–90. http://dx.doi.org/10.1128/aac.48.3.783-790.2004.

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ABSTRACT Zinc supplementation decreases the morbidity of lower respiratory tract infection in pediatric patients in the developing world. We sought to determine if zinc mediates a specific inhibitory effect against the major cause of pediatric lower respiratory tract disease, respiratory syncytial virus (RSV). We determined the in vitro inhibitory effect of three zinc salts (zinc acetate, lactate, and sulfate) on the replication of RSV at various concentrations of 10 and 1 mM and 100 and 10 μM. The degree of inhibition of RSV replication was examined in the presence of zinc during preincubatio

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40

Agren, M. S., M. Krusell, and L. Franzén. "Release and absorption of zinc from zinc oxide and zinc sulfate in open wounds." Acta Dermato-Venereologica 71, no. 4 (1991): 330–33. http://dx.doi.org/10.2340/0001555571330333.

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Анотація:

The pharmacokinetic behaviours of zinc oxide and zinc sulfate when applied as single doses to full-thickness excised rat skin wounds were studied. In the zinc oxide group, the wound fluid zinc concentration increased slightly over the 48-h postoperative period due to increased solubilization of zinc oxide, attributed to increased protein concentration of the wound fluid. When zinc sulfate was applied to the wounds, the wound fluid zinc concentration decreased rapidly during the first 4 postoperative h and then at a slower rate. The changes in the serum zinc level followed essentially the same

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41

Hisira, Vladimír, Marián Kadaši, Róbert Klein, Lýdia Mesarčová, and Ján Pošivák. "Bioaccumulation of Cu, Fe and Zn in Wild Ruminants in Middle Gemer Region." Chemické listy 116, no. 9 (2022): 543–47. http://dx.doi.org/10.54779/chl20220543.

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The aim of this study was to monitor trace metals (copper, iron and zinc) concentrations in parenchymatous organs and muscle tissue of red deer (n=23) and roe deer (n=25) that were hunted down in the middle Gemer region in south central Slovakia. Being expressed in mg kg–1 in all cases, these concentrations assumed the following values: mean renal copper concentration in red deer was 4.36, hepatic 19.65, muscle 1.96; renal iron concentration was 72.5, hepatic 131.9, muscle 45.09; mean zinc concentration in kidney was 27.77, in liver 30.22 and in muscle 29.58 , respectively. In roe deer, mean l

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42

SEKARAN, SRI RAMACHANDRA, and MATHAN K.K. "DIRECT AND RESIDUAL EFFECT OF DIFFERENT ZINC SOURCES ON UPTAKE OF Zn AND YIELD IN PADDY-PULSE ROTATION." Madras Agricultural Journal 78, March Augest (1991): 197–99. http://dx.doi.org/10.29321/maj.10.a01844.

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Анотація:

Direct and residual effect of different zinc sources (Zinc sulphate, Zincated urea and Zincated suphala) in rice-pulse-rotation was evaluated. Crop yield, concentration and uptake of zine was high in plots where Zn was applied as zincated urea alone and in combination with zincated suphala. Residual effect on the pod yield of green gram was also found. Residual effect on the zinc uptake both by pod and haulms was not much influenced by zinc sources. None of the zine sources could provide DTPA Zn of 2 ppm (critical limit) after greengram crop in order to raise the third crop

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43

Rankovic, Bosko, and Ruzica Djordjevic. "Diagnostic importance of zinc in the clarification of pleural effusions etiology." Vojnosanitetski pregled 59, no. 4 (2002): 385–87. http://dx.doi.org/10.2298/vsp0204385r.

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Concentration of zinc in blood serum and effusion was determined in 104 patients with the pleural effusion of different etiology. The importance of zinc concentration in serum and effusion was analyzed, as well as their relation regarding the differential diagnosis of pleural effusion. It was established that the isolated zinc concentrations in serum and pleural effusion could not be used separately either in differing transudates from exudates or in the diagnosis of the pleural diseases. The average value of zinc in the pleural effusion in relation to the serum value in patients with tubercul

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44

Temiye, Edamisan Olusoji, Edem Samuel Duke, Mbang Adeyemi Owolabi, and James Kweku Renner. "Relationship between Painful Crisis and Serum Zinc Level in Children with Sickle Cell Anaemia." Anemia 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/698586.

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Sickle cell anaemia (SCA) is associated with zinc deficiency; zinc supplementation may ameliorate some of its clinical manifestations including the relief of painful crisis.Subjects and Methods. Serum zinc levels were determined in 71 children with SCA and painful crisis and in equal numbers in steady state. Seventy-one children with AA genotype acted as controls. Qualitative assessment of zinc content of 24-hour dietary recall and the last meal consumed before blood was drawn was taken. Serum zinc was determined using atomic absorption spectrophotometer. Haemoglobin concentration and packed c

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45

Jassim Nassir, Mokhtar, and Kamil Kadhim Fahad. "Some Heavy metals measurements (Cadmium, Copper, and Zinc) in the tissues of common carp Cyprinus carpioL . 1758 farmed in floating cages in the Euphrates River." Sumer 1 8, CSS 1 (2023): 1–8. http://dx.doi.org/10.21931/rb/css/2023.08.01.86.

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Анотація:

The current study examined the concentrations of three heavy metals (cadmium, copper, and zinc) in the tissues of common carp fish. (gills-musclesintestines) collected from one of the private farms that raised fish in floating cages in the Euphrates River from 18/10/2021 to 18/3/2022. Every month, water samples were analyzed, as were fish tissue samples. Using an atomic absorption spectroscopy device, standard procedures were followed to assess the concentration of heavy metals in water and tissues. The results showed that the highest concentration of zinc, cadmium, and copper was detected in

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46

Erdene-ochir, Sosorburam. "Гуулин аяганд хадгалсан усны цайрын баяжилтыг хугацаанаас хамааруулан рентген флуоресценцийн шинжилгээний аргаар тодорхойлсон үр дүн". Физик сэтгүүл 38, № 621 (2025): 49–54. https://doi.org/10.22353/physics.v38i621.10087.

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This study investigates the concentration of zinc leached into water stored in a brass pot at room temperature using the X-ray fluorescence (XRF) analysis method. A total of 100 mL of pure water was stored in a brass pot for 16 days. Water samples of 1 mL were taken at 24- or 48-hour intervals, resulting in 12 prepared solutions. XRF analysis showed that the zinc concentration in the control (unexposed) water was 0.5 mg/L, while the water stored in the brass pot exhibited zinc concentrations ranging from 2 to 13 mg/L over the 2–16-day period. Standard zinc solutions of 5 mg/L and 10 mg/L were

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47

Rivera-Martin, Angelica, Martin R. Broadley, and Maria J. Poblaciones. "Soil and foliar zinc application to biofortify broccoli (Brassica oleracea var. italica L.): effects on the zinc concentration and bioavailability." Plant, Soil and Environment 66, No. 3 (2020): 113–18. http://dx.doi.org/10.17221/14/2020-pse.

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Agronomic zinc (Zn) biofortification of crops could help to alleviate dietary Zn deficiency, which is likely to affect more than one billion people worldwide. To evaluate the efficiency of agronomic Zn biofortification of broccoli, four application treatments were tested: no Zn application (control); soil application of 5 mg/kg ZnSO<sub>4</sub>·7 H<sub>2</sub>O (soil); two sprays (15 mL/pot each) of 0.25% (w/v) ZnSO<sub>4</sub>·7 H<sub>2</sub>O (foliar); and soil + foliar combination. Soil Zn application increased Zn-DTPA (diethylenetriamine pent

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48

Lalosevic, Jovan, Mirjana Gajic-Veljic, Jelena Lalosevic Misovic, and Milos Nikolic. "Serum Zinc Concentration in Patients with Alopecia Areata." Acta Dermato-Venereologica 103 (October 3, 2023): adv13358. http://dx.doi.org/10.2340/actadv.v103.13358.

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Alopecia areata is an autoimmune non-scarring disease in which the exact mechanism that induces loss of immune privilege is unknown. Zinc is important for DNA stability and repair mechanisms that are essential in maintaining normal hair growth. Zinc deficiency has been investigated as an important factor in many autoimmune diseases, and may have a possible role in the aetiopathogenesis of alopecia areata. This study included 32 patients with severe forms of alopecia areata, and 32 age- and sex-matched healthy controls. When comparing serum zinc levels in these 2 groups, statistically significa

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Gonzalez, Matias Alberto, Valeria Bernardo, Sebastián Garita, et al. "Morphophysiological and biochemical responses of Schedonorus arundinaceus to Zinc (II) excess: insights from biomarkers and elemental accumulation." Revista de la Facultad de Ciencias Agrarias UNCuyo 56, no. 2 (2024): 34–47. https://doi.org/10.48162/rev.39.135.

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Анотація:

Excessive levels of zinc have detrimental effects on plant physiology and morphology, hindering growth and development. This study aimed to elucidate the morphophysiological and biochemical mechanisms of Schedonorus arundinaceus in response to high concentrations of zinc exposure and to investigate the correlation between these parameters to identify potential stress biomarkers in this species. Plants were exposed to seven zinc concentrations (0-500-1000-1500-2000-2500-3000 μM) for 50 days. The results showed decreased dry weight, root area, photosynthetic pigments, root soluble proteins and s

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50

Ibeawuchi, Amarabia N. E., Alphonsus N. Onyiriuka, and Philip O. Abiodun. "High Prevalence of Zinc Deficiency in Rural Nigerian Preschool Children: A Community-Based Cross-Sectional Study." Romanian Journal of Diabetes Nutrition and Metabolic Diseases 24, no. 1 (2017): 31–39. http://dx.doi.org/10.1515/rjdnmd-2017-0004.

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AbstractBackground and Aims: In Nigeria, community-based epidemiological data related to the prevalence of zinc deficiency in preschool children are scarce. We assessed the prevalence of zinc deficiency and the associated socio-demographic variables in children aged between 6 and 60 months, living in a Nigerian rural community.Materials and Methods: In this cross-sectional study, the serum zinc concentrations of 252 children aged between 6 and 60 months in a rural community in Nigeria were assessed, using atomic absorption spectrophotometry. The study population was selected by multistage rand

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