https://doi.org/10.18502/ijrm.v22i5.16439
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authors
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Forogh Mohammadi
Forogh Mohammadi
Department of Veterinary, Agriculture Faculty, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.
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Maryam Karimi-Dehkordi
Maryam Karimi-Dehkordi
Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran.
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Farnaz Pouriayevali
Farnaz Pouriayevali
Research Institute of Animal Embryo Technology, Shahrekord University, Shahrekord, Iran.
Published Date
- Jul 2, 2024
Evaluation of the sperm parameters, oxidative stress, and histopathological effects of vitamin B12 in preventing Helicobacter pylori-induced testicular toxicity: An experimental study
Abstract
Background: Helicobacter pylori (H. pylori) causes sterility by affecting the reproductive system. vitamin B12 improves sperm quantity and function.
Objective: Vitamin B12 protection against H. pylori adverse effects was investigated.
Materials and Methods: 40 C57 male mice (6 wk) were randomly assigned to 4 equal groups (n = 10) including, group 1 (control without any intervention), group 2 (H), 3 (HP), and 4 (HB) received 1×109 colony forming unit (CFU) of H. pylori, 1×109 CFU of H. pylori+phosphate buffered saline, 1×109 CFU of H. pylori+50 μg/kg vitamin B12 intraperitoneally, respectively. In the induction groups, the H. pylori was orogasterically injected 3 times with 1 cc phosphate buffered saline throughout the day. Then testicular metrics, sperm motility, viability, quantity, and shape, plasma levels of malondialdehyde (MDA), superoxide dismutase, glutathione peroxidase, and total antioxidant capacity were measured. Also, testicular-tissue changes were examined using Johnson scores, tubular differentiation index, and spermatogenesis index. Vitamin B12, homocysteine, and testosterone serum levels were examined.
Results: The results showed a significantly lower Johnson score, tubular differentiation index, and spermatogenesis index, and serum level of testosterone and homocysteine as well as a higher MDA level in the H and HP groups than the HB group (p < 0.05). In contrast, the highest superoxide dismutase and glutathione peroxidase enzymes activity and total antioxidant capacity as well as the lowest serum level of MDA were found in the HB group compared to other groups (p < 0.05).
Conclusion: Vitamin B12 increased antioxidant enzyme activity, enhanced sperm parameters, and decreased injury to testicular tissue. It can be used as a potent antioxidant in reducing testicular damage induced by H. pylori.
Key words: Helicobacter pylori, Reproductive medicine, Oxidative stress.
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