Short term chronic toxicity of tributyltin on the testes of adult albino rats and the possible protective role of omega-3

The declining rate of male fertility is a growing concern. Tributyltin (TBT) is a well-known endocrine disruptor (ED), that induces imposex in female gastropods and is widely used in various industrial applications. The aim of this study was to evaluate the toxic effects of TBT on the testes of adul...

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Bibliographic Details
Published in:Human & experimental toxicology 2021-02, Vol.40 (2), p.214-230
Main Authors: Ahmed, Marwa G, Ibrahim, Mona El-Demerdash, El Sayed, Hoda R, Ahmed, Samah M
Format: Article
Language:English
Subjects:
Antifouling substances
Antioxidants
Apoptosis
Attenuation
Cell proliferation
Chronic toxicity
Damage
Epithelium
Fertility
Follicle-stimulating hormone
Glutathione
Glutathione peroxidase
Imposex
Industrial applications
Luteinizing hormone
Malondialdehyde
Oxidative stress
Peroxidase
Spermatogenesis
Testes
Testosterone
Toxicity
Tributyltin
Tributyltin compounds
Tubules
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Summary:The declining rate of male fertility is a growing concern. Tributyltin (TBT) is a well-known endocrine disruptor (ED), that induces imposex in female gastropods and is widely used in various industrial applications. The aim of this study was to evaluate the toxic effects of TBT on the testes of adult albino rats and the possible role of omega-3. Forty two adult male albino rats were divided into five groups; control group (Group I) and four experimental groups: omega-3 treated group, TBT treated group, TBT & omega-3 treated group and follow up group. At the end of the study, the rats were subjected to biochemical, histological, immunohistochemical staining for Ki-67 and seminal examinations. Our results clarfied that TBT induced a significant decrease in testosterone, FSH, LH and serum glutathione peroxidase levels and a significant increase in the serum Malondialdehyde as compared to the control group. Tributyltin induced disorganization and shrinkage of seminiferous tubules, apoptosis, cellular damage and marked reduction in the germinal epithelium. A significant decrease in the cell proliferation and arrested spermatogenesis were also detected. Seminal analysis of TBT group showed a significant affection of all parameters as compared to other groups. Omega-3 ameliorated all of these hazardous effects. Follow up group still showed toxic effects. In conclusion, TBT has a toxic effect on the testis. Increased testicular oxidative stress, cellular damage and arrest of spermatogenesis with attenuation in antioxidant defenses are all contributing factors. Omega-3 can protect against TBT induced reproductive toxicity.
ISSN:0960-3271
1477-0903
DOI:10.1177/0960327120947451