scholarly journals Correlation of glutathione reductase activity distribution in the blood serum and tissues of white unborn rats

2020 ◽  
Vol 17 ◽  
pp. 00195
Author(s):  
Pavel Boriskin ◽  
Olga Gulenko ◽  
Anatoly Devyatkin ◽  
Rufia Karimova ◽  
Victor Leonov ◽  
...  
Keyword(s):  
Blood Serum ◽  
Glutathione Reductase ◽  
Reductase Activity ◽  
Active Oxygen Species ◽  
Free Radical Oxidation ◽  
Rat Tissues ◽  
Activity Distribution ◽  
Glutathione Reductase Activity ◽  
Nonparametric Correlation ◽  
The Relationship

It is known that the majority of pathological processes take place against the background of formation of active oxygen species and intensification of free radical oxidation of bio-substrates. In response to this, the antioxidant system of the cell is activated, and the glutathione system is an important link in this system. The latter can take part in the maintenance of the optimal state of biomembranes, in the processes of detoxification, antioxidant protection, etc. The biological role of glutathione reductase is to maintain high intracellular concentration of reduced glutathione. The aim of our study was to study the relationship between the distribution of glutathione reductase activity in blood serum and rat tissues. In order to achieve the goal of the study the following tasks were solved: the activity of glutathione reductase in blood serum and tissues of liver, brain, heart, as well as in skeletal muscle tissues of rats was determined; the interrelation of the activity distribution of glutathione reductase in blood serum and tissues of rats was revealed. The article presents the results of nonparametric correlation analysis to assess the relationship between the distribution of glutathione reductase activity in blood serum and tissues of small experimental animals.

scholarly journals In Vivo Bioavailability of Selenium in Selenium-Enriched Streptococcus thermophilus and Enterococcus faecium in CD IGS Rats

Antioxidants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 463
Author(s):  
Gabriela Krausova ◽  
Antonin Kana ◽  
Marek Vecka ◽  
Ivana Hyrslova ◽  
Barbora Stankova ◽  
...  
Keyword(s):  
Glutathione Reductase ◽  
Enterococcus Faecium ◽  
Reductase Activity ◽  
Streptococcus Thermophilus ◽  
Heart Tissue ◽  
Sprague Dawley ◽  
Glutathione Reductase Activity ◽  
Novel Concept ◽  
The Individual

The selenium (Se) enrichment of yeasts and lactic acid bacteria (LAB) has recently emerged as a novel concept; the individual health effects of these beneficial microorganisms are combined by supplying the essential micronutrient Se in a more bioavailable and less toxic form. This study investigated the bioavailability of Se in the strains Enterococcus faecium CCDM 922A (EF) and Streptococcus thermophilus CCDM 144 (ST) and their respective Se-enriched forms, SeEF and SeST, in a CD (SD-Sprague Dawley) IGS rat model. Se-enriched LAB administration resulted in higher Se concentrations in the liver and kidneys of rats, where selenocystine was the prevalent Se species. The administration of both Se-enriched strains improved the antioxidant status of the animals. The effect of the diet was more pronounced in the heart tissue, where a lower glutathione reductase content was observed, irrespective of the Se fortification in LAB. Interestingly, rats fed diets with EF and SeEF had higher glutathione reductase activity. Reduced concentrations of serum malondialdehyde were noted following Se supplementation. Diets containing Se-enriched strains showed no macroscopic effects on the liver, kidneys, heart, and brain and had no apparent influence on the basic parameters of the lipid metabolism. Both the strains tested herein showed potential for further applications as promising sources of organically bound Se and Se nanoparticles.

scholarly journals Isoniazid acetylating phenotype in patients with paracoccidioidomycosis and its relationship with serum sulfadoxin levels, glucose-6-phosphate dehydrogenase and glutathione reductase activities

1991 ◽  
Vol 24 (2) ◽  
pp. 111-114 ◽  
Author(s):  
Benedito Barraviera ◽  
Paulo Câmara Marques Pereira ◽  
Jussara Marcondes Machado ◽  
Maria Julia de Souza ◽  
Carlos Roberto G. Lima ◽  
...  
Keyword(s):  
Glutathione Reductase ◽  
Reductase Activity ◽  
Serum Levels ◽  
Slow Acetylators ◽  
Slow Acetylator ◽  
A Value ◽  
Acti Vity ◽  
Glutathione Reductase Activity ◽  
Glutathione Reductase Deficiency ◽  
Glucose 6 Phosphate Dehydrogenase

The authors evaluated the isoniazid acetylating phenotype and measured hematocrit, hemoglobin, glucose-6-phosphate dehydrogenase and glutathione reductase activities plus serum sulfadoxin levels in 39 patients with paracoccidioidomycosis (33 males and 6 females) aged 17 to 58 years. Twenty one (53.84%) of the patients presented a slow acetylatingphenotype and 18(46.16%) a fast acetylating phenotype. Glucose-6-phosphate- dehydrogenase (G6PD) acti vity was decreased in 5(23.80%) slow acetylators and in 4(22.22%) fast acetylators. Glutathione reductase activity was decreased in 14 (66.66%) slow acetylators and in 12 (66.66%) fast acetylators. Serum levels of free and total sulfadoxin Were higher in slow acetylator (p < 0.02). Analysis of the resultspermitted us to conclude that serum sulfadoxin levels are related to the acetylatorphenotype. Furthermore, sulfadoxin levels were always above 50 µg/ml, a value considered therapeutic. Glutathione reductase deficiency observed in 66% of patients may be related to the intestinal malabsorption of nutrients, among them riboflavin, a FAD precursor vitamin, inpatients with paracoceidioidomycosis.

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