Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

Abstract Title:

Oxidative stress in testes of rats subjected to chronic iron intoxication and alpha-tocopherol supplementation.

Abstract Source:

Toxicology. 1999 Feb 15;132(2-3):179-86. PMID: 10433381

Abstract Author(s):

F Lucesoli, C G Fraga

Article Affiliation:

Physical Chemistry, School of Pharmacy and Biochemistry, University of Buenos Aires, Argentina.

Abstract:

Oxidative stress parameters were evaluated in rat testes after chronic iron intoxication and vitamin E supplementation. Male Wistar rats were fed during 6 weeks with the following diets: C = rat chow; I = C + 25 mg carbonyl-iron/g diet; A = C + 0.2 mg alpha-tocopheryl acetate/g diet; and the combination of I and A (IA). After the treatment, no changes in final body weight, testis weight and protein content were observed. Total iron content in testes from the I group was 33% higher compared to the C group (216 +/- 10 nmol/g of tissue). The content of alpha-tocopherol (alphaT) was 2.5-fold higher in the A and IA groups compared to the C group (12.8 +/- 0.7 nmol/g tissue). The content of ubiquinol-9 (13.0 +/- 1.7 nmol/g tissue) and ubiquinol-10 (3.3 +/- 0.5 nmol/g tissue) was similar among the groups. Superoxide dismutase activity was 13 and 16% lower in the A and IA groups with respect to the C group (12.9 +/- 0.7 U/mg protein). Catalase activity was 26 and 33% lower in the I and IA groups than in the C (0.19 +/- 0.01 pmol/mg protein) and A (0.21 +/- 0.01 pmol/mg protein) groups, respectively. Glutathione peroxidase was 24 and 23% higher in the IA group than in the C (11.4 +/- 0.3 mU/mg protein) and I (11.5 +/- 1.0 mU/mg protein) groups, respectively. The testes content of 2-thiobarbituric acid-reactive substances (TBARS) and protein-associated carbonyl groups were 37 and 16% higher, respectively, in the I group than in the C group. These increased in TBARS and carbonyls, were not observed in the IA group. No diet-associated changes were observed in the steady state levels of 8-oxo-2'-deoxyguanosine in testes DNA (4.2 +/- 0.2 residue/10(5) dG). The present data suggest that this model of chronic iron overload produced a mild oxidative damage in rat testes that was partially prevented by alphaT supplementation.

Study Type : Animal Study

Print Options


Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2019 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.