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Artykuły w czasopismach na temat "Tobacco px Physiological effect"

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Perona, G., R. Schiavon, G. C. Guidi, D. Veneri, and P. Minuz. "Selenium Dependent Glutathione Peroxidase: A Physiological Regulatory System for Platelet Function." Thrombosis and Haemostasis 64, no. 02 (1990): 312–18. http://dx.doi.org/10.1055/s-0038-1647308.

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SummaryIn human platelets the selenoenzyme glutathione peroxidase (GSH-Px) acts as a scavenger of the peroxides generated during the burst of arachidonic acid (AA) metabolism. Such a mechanism inhibits the biosynthesis of both thromboxane A2 (TXA2) and lipoxygenase products. The same mechanism is not effective on the prostacyclin (PGI2) biosynthesis from cultured endothelial cells. In order to evaluate this effect in vivo, besides in vitro, we activated the enzyme in eight normal volunteers by increasing their daily Se intake for 8 weeks, monitoring: platelet GSH-Px activity, platelet aggregat
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Baj, Z., K. Zeman, Ewa Majewska, et al. "Does the Selenium (SE) Level and Se-Dependent Enzyme Activity in Blood Plasma Correlate with Human Lymphocyte Subpopulations and Function?" International Journal of Immunopathology and Pharmacology 5, no. 1 (1992): 13–21. http://dx.doi.org/10.1177/039463209200500102.

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Recent literature data on the effects of Se on subpopulations of T lymphocytes, on autologous mixed lymphocyte reaction (AMLR) and on natural killer (NK) cell cytotoxicity are limited or poorly defined. In healthy volunteers we have estimated se levels, glutathione peroxidase (GSH-Px) activity and lipid peroxide levels in human plasma and simultaneously, the subpopulations of T lymphocytes, proliferation in AMLR, and activity of NK cells. We found a significantly positive correlation between the selenium level and GSH-Px activity. The proliferative response in AMLR significantly correlated wit
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Zachara, Bronisław A., Jolanta Gromadzińska, Wojciech Wasowicz, and Zbigniew Zbróg. "Red blood cell and plasma glutathione peroxidase activities and selenium concentration in patients with chronic kidney disease: a review." Acta Biochimica Polonica 53, no. 4 (2006): 663–77. http://dx.doi.org/10.18388/abp.2006_3294.

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The metabolism of oxygen in aerobic organisms leads to generation of reactive oxygen species (ROS). These entities are able to oxidize almost all classes of macromolecules, including proteins, lipids and nucleic acids. The physiological level of ROS is usually regulated by antioxidant defense mechanisms. There are at least three groups of antioxidant enzymes: superoxide dismutases, catalases and glutathione peroxidases (GSH-Pxs) which neutralize ROS. The trace elements (copper, zinc and selenium) bound to the active sites of the above listed enzymes play an important role in the antioxidant de
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Karakılçık, A. Ziya, and Mesut Aksakal. "Some Metabolic Functions and Metabolism of Selenium and its relations with Vitamin E." European Journal of Therapeutics 4, no. 2 (1993): 283–91. http://dx.doi.org/10.58600/eurjther-199342-1111-x.

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Selenium (Se) concentrations in the animal tissues vary according to the tissue and the amount and chemical form of Se in diet. in cattle and sheep Se concentrations rank in the order kidney, Iiver, heart, skeletal muscle and adipose tissue. Se like other elements, has a bimodal effect. At normal concentrations, Se is an essential trace element necessary for growth in man and animals. However, ıntake of high concentrations of Se can show toxic effects; ingestion of very low concentrations of this trace element results in Se-deficiency sympthoms in man and animals. The main physiological functi
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Kalashnikov, S. V., and M. V. Shkidyuk. "Identification characteristics of non-smoking tobacco products." New Technologies 17, no. 2 (2021): 25–32. http://dx.doi.org/10.47370/2072-0920-2021-17-2-25-32.

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Modern trends in the reduction of cigarette consumption have led to the spread of smokeless tobacco and non-tobacco nicotine-containing products [1]; their variety creates certain problems with the identification of products in this segment. Sucking tobacco (snus) has been banned in the Russian Federation for wholesale and retail trade since 2015, but it is a product similar to chew- ing tobacco in packaging, ingredient composition and physiological effects. Therefore, establishing the identification characteristics of chewing tobacco is an urgent task. The attitude towards chewing tobacco is
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Cui, Boya, Lanying Liu, Tao Shi, Min Yin, Xu Feng, and Yu Shan. "The Ethanolic Extract of Lycium ruthenicum Ameliorates Age-Related Physiological Damage in Mice." Molecules 28, no. 22 (2023): 7615. http://dx.doi.org/10.3390/molecules28227615.

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Aging and age-related diseases are important study topics due to their associations with progressive physiological damage to genes, cells, tissues, and the entire organism, which ultimately affects the functional efficiency of organs. Lycium ruthenicum Murr. is a functional food that is known for its high contents of anthocyanins and spermidines, both of which have been demonstrated to have positive effects on anti-aging activity and anti-oxidation. In this study, we used HPLC-MS to analyze the constituents of L. ruthenicum Murr. Extract (LRM) and investigated their potential mechanism for exe
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Wang, Jian, Li Zhang, Xia Tang, et al. "The Effect of Lidan Huashi Pills on the Glutathione Peroxidase Activity and Growth of Calcium Oxalate Crystals in the Kidneys of Rats." Urology Research 2, no. 2 (2024): 1–9. http://dx.doi.org/10.26689/ur.v2i2.7397.

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Objective: To explore the effects of Lidan Huashi Pills on the glutathione peroxidase (GSH-Px) activity and growth of calcium oxalate crystals in the kidneys of rats. Methods: 30 rats were randomly divided into a blank group, a model group, and an experimental group, with 10 rats in each group. The blank group was free to eat and drink water for 8 weeks; the ethylene glycol method was used for the standard calcium oxalate crystal modeling in the control group and experimental group for 4 weeks. The model group was given free feeding and physiological saline (2 ml/d) by continuous gavage for 4
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Lin, Qianmin, Bingbing Song, Yingxiong Zhong, et al. "Effect of Sodium Hyaluronate on Antioxidant and Anti-Ageing Activities in Caenorhabditis elegans." Foods 12, no. 7 (2023): 1400. http://dx.doi.org/10.3390/foods12071400.

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As an acidic polysaccharide, the formation of Hyaluronic acid (HA) is typically Sodium Hyaluronate (SH) for knee repair, oral treatment, skincare and as a food additive. Nevertheless, little information is available on the anti-ageing activity of SH as a food additive. Therefore, we treated C. elegans with SH, then inferred the anti-aging activity of SH by examining the lifespan physiological indicators and senescence-associated gene expression. Compared with the control group, SH (800 μg/mL) prolonged the C. elegans’ lifespans in regular, 35 °C and H2O2 environment by 0.27-fold, 0.25-fold and
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Zhang, Shuyi, Weichang Gao, Kai Cai, Taoze Liu, and Xingshi Wang. "Effects of Microplastics on Growth and Physiological Characteristics of Tobacco (Nicotiana tabacum L.)." Agronomy 12, no. 11 (2022): 2692. http://dx.doi.org/10.3390/agronomy12112692.

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The environmental effects caused by the proliferation of microplastics have received extensive attention. However, at this stage, there is a lack of research on the toxicology of microplastics and their impacts on plants. This study explored the effects of microplastics on the growth and physiological characteristics of tobacco. Using tobacco (Nicotiana tabacum L.) variety Yunyan87 and low-density polyethylene (LDPE, 13 μm particle size), different concentrations, which were 0 mg/L (CK), 10 mg/L (T1), 100 mg/L (T2), and 1000 mg/L (T3), were subjected to hydroponic experiments to study the effe
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Gu, Chunmei, Qiuping Yang, Shujun Li, et al. "Effects of Soybean Trypsin Inhibitor on Pancreatic Oxidative Damage of Mice at Different Growth Periods." Foods 12, no. 8 (2023): 1691. http://dx.doi.org/10.3390/foods12081691.

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The bioactive components in soybeans have significant physiological functions. However, the intake of soybean trypsin inhibitor (STI) may cause metabolic disorders. To investigate the effect of STI intake on pancreatic injury and its mechanism of action, a five-week animal experiment was conducted, meanwhile, a weekly monitor on the degree of oxidation and antioxidant indexes in the serum and pancreas of the animals was carried out. The results showed that the intake of STI had irreversible damage to the pancreas, according to the analysis of the histological section. Malondialdehyde (MDA) in
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Rozprawy doktorskie na temat "Tobacco px Physiological effect"

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Lee, Sherman. "The effect of acute cigarette smoke exposure on regional pulmonary blood flow, volume, red cell transit and polymorphonuclear leukocyte retention in the rabbit lung." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24840.

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Regional pulmonary blood flow and volume was measured in ten rabbits anesthetized with pentobarbital (30 mg/kg). Tracheostomy was performed and catheters were placed into the jugular vein and carotid artery. The cardiac ⁹⁹mtc output was measured using the indicator-dilution technique using Tc labelled RBC followed by an injection of radiolabelled macroaggregates (MAA) to mark regional blood flow. Measurements were made both before and after either exposure to cigarette smoke (3 cigarettes for ten minutes at 4 puffs/minute) or sham exposure to air. The animals were sacrificed and the lungs w
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馮建裕 and Kin Yue Clive Fung. "The effects of non-surgical periodontal treatment on gingival suppuration, bleeding on probing and pocket depths in male tobaccosmoking and non-smoking adults." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B38628466.

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Alm, David Michael. "Comparison and interaction of heat and salt stress in cultured tobacco cells." Virtual Press, 1986. http://liblink.bsu.edu/uhtbin/catkey/445616.

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Cultured tobacco cells (Nicotiana tabacum L., cv Wisconsin-38) were subjected to temporary sub-lethal heat and salt shock treatments to determine the effects of these treatments on various physiological parameters after subsequent lethal heat or salt stresses. Tobacco cells developed a tolerance to a non-permissive temperature stress (54C for 14 min) when pretreated with heat shock of 38C for 2h but not when pretreated at 42C for 2h. Cells pretreated at 38 (2h) exhibited less than 30% normal growth when the 54C stress came immediately after the 38C treatment. Tolerance to the 54C stress develo
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Wang, Hongying, and 汪紅英. "Studies on the mechanisms of cigarette smoke-induced apoptosis and cell proliferation in gastric epithelial cells." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B3124113X.

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沈毅峰 and Ngai-fung Sham. "Study of the protective mechanisms of cigarette smoke and nicotine on experimental ulcerative colitis in rats." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31225081.

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周古筠 and Ku-kwan Clara Chau. "The association of smoking and erectile dysfunction in the men's health survey." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31970412.

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Parr, Sharon M. "The effects of graduated exercise at the piano on the pianist's cardiac output, forearm blood flow, heart rate, and blood pressure." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/434086.

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The purpose of this study was to determine the effects of graduated exercise at the piano on the pianist's cardiac output, forearm blood flow, heart rate, and blood pressure. Also considered were the effects of piano practice conditioning, general cardiovascular conditioning, and acute cigarette smoking on the aforementioned parameters during and after graduated piano exercise.Fifteen adult pianists participated in the study. The piano exercises consisted of bilateral scales played in eight three-minute stages. Tempo was constant within stages but increased with each new stage. Cardiac output
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Gamieldien, Kareemah. "The influence of maternal nicotine exposure on selected glycolytic and cytochrome P450 enzymes in developing neonatal rat lung." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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The structural and functional integrity of a developing and maturing fetal and neonatal lung is critically dependent on carbohydrate metabolism. The energy derived from carbohydrate metabolism is utilized during the processed of cell growth and development. It is reported that maternal nicotine exposure during pregnancy and lactation results in the irreversible inhibition of glycolysis, for which no mechanism is currently proposed and a significant increase in glucose turnover. The principal objective of this thesis was to determine the influence of maternal nicotine exposure during gestation
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Hamadeh, Randar R. "The impact of smoking in Bahrain." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670386.

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Fu, Shing-yan Karen, and 符誠欣. "Cigarette smoke-induced inflammatory changes in rat heart in vivo." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48333864.

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Cigarette smoke (CS) is a well-established risk factor to cardiovascular health and the most preventable cause of death. Countless studies have demonstrated its harm to health and many more studies investigating its pathogenic mechanisms. While the CS-induced pathogenic mechanism of cardiovascular dysfunction has been mainly attributed to a combination of oxidative imbalance, vascular endothelial dysfunction, inflammation and modification of lipid profile, the focus of the current study was on the mediators of inflammation and the activation of signal pathways. In this study, we investigated
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Książki na temat "Tobacco px Physiological effect"

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Kronebusch, Karl. Smoking-related deaths and financial costs. The Office, 1985.

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Porterfield, Jason. Tobacco. Rosen Central., 2008.

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Cancer, International Agency for Research on. Tobacco smoking. World Health Organization, 1986.

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Haustein, K. O. Tobacco or health? 2nd ed. Springer, 2010.

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Gold, Mark S. Tobacco. Plenum Medical Book Co., 1995.

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National Clearinghouse on Tobacco and Health (Canada), ed. Children and tobacco. National Clearinghouse on Tobacco and Health, 1989.

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National Clearinghouse on Tobacco and Health (Canada), ed. Children and tobacco. National Clearinghouse on Tobacco and Health, 1989.

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Phil, Cohen. Tobacco. Steck-Vaughn, 1992.

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Snowball, Laura C. Tobacco smoking. Library of Parliament, Research Branch, 1995.

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Ward, Lesley. Facts about smoking: A trainers' manual. TACADE, 1985.

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Raporty organizacyjne na temat "Tobacco px Physiological effect"

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Wolf, Shmuel, and William J. Lucas. Involvement of the TMV-MP in the Control of Carbon Metabolism and Partitioning in Transgenic Plants. United States Department of Agriculture, 1999. http://dx.doi.org/10.32747/1999.7570560.bard.

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The function of the 30-kilodalton movement protein (MP) of tobacco mosaic virus (TMV) is to facilitate cell-to-cell movement of viral progeny in infected plants. Our earlier findings have indicated that this protein has a direct effect on plasmodesmal function. In addition, these studies demonstrated that constitutive expression of the TMV MP gene (under the control of the CaMV 35S promoter) in transgenic tobacco plants significantly affects carbon metabolism in source leaves and alters the biomass distribution between the various plant organs. The long-term goal of the proposed research was t
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Fromm, Hillel, and Joe Poovaiah. Calcium- and Calmodulin-Mediated Regulation of Plant Responses to Stress. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568096.bard.

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We have taken a molecular approach to clone cellular targets of calcium/calmodulin (Ca2+/CaM). A 35S-labeled recombinant CaM was used as a probe to screen various cDNA expression libraries. One of the isolated clones from petunia codes for the enzyme glutamate decarboxylase (GAD) which catalyzes the conversion of glutamate to g-aminobutyric acid (GABA). The activity of plant GAD has been shown to be dramatically enhanced in response to cold and heat shock, anoxia, drought, mechanical manipulations and by exogenous application of the stress phytohormone ABA in wheat roots. We have purified the
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Avni, Adi, and Gitta L. Coaker. Proteomic investigation of a tomato receptor like protein recognizing fungal pathogens. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600030.bard.

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Maximizing food production with minimal negative effects on the environment remains a long-term challenge for sustainable food production. Microbial pathogens cause devastating diseases, minimizing crop losses by controlling plant diseases can contribute significantly to this goal. All plants possess an innate immune system that is activated after recognition of microbial-derived molecules. The fungal protein Eix induces defense responses in tomato and tobacco. Plants recognize Eix through a leucine-rich-repeat receptor- like-protein (LRR-RLP) termed LeEix. Despite the knowledge obtained from
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