Protective Effects of Curcumin and Selenium on Testicular Toxicity Induced by Lead Acetate in Adult Male Albino Rats [Structural and Biochemical Study]

Abstract

Background: Several industrial products [such as paints, cosmetics, and petrol] contained metals like lead [Pb], which are harmful to people. The reproductive organs are the primary organs affected by heavy metal toxicity through the production of oxidative stress. Selenium and curcumin could help to counteract this toxicity.Aim of the work: We investigated the possible role of Selenium or curcumin in improving the testicular toxicity caused by the intake of Lead orally in albino rats.Materials and Methods: 40 adult male albino rats were selected and unsystematically separated into 4 groups [10 rats/each] included: Group 1: control group; Group 2: Pb-exposed group; Group 3: Pb plus Selenium and Group 4: Pb plus Curcumin. Blood samples were collected for examination of serum biochemical parameters, serum Testosterone, LH, FSH levels, Total Anti-oxidant Capacity [TAC], testicular tissue oxidative stress parameters and testicular histology were evaluated.Results: Oral administration of Pb to rats for 4 weeks disturbs the testicular structure and function with a significant increase in the oxidative stress enzymes, deposition of collagen fibers and anticaspase-3 in the testis. While, administration of either Selenium or Curcumin with Pb-exposure induced significant improvement of all the testicular changes.Conclusion: Chronic lead exposure causes deteriorating changes in the testicular structures and functions which could be improved by oral intake of either Selenium or Curcumin by their antioxidant, antifibrotic, and antiapoptotic properties.

Keywords

• lead
• testis
• oxidative stress
• selenium
• curcumin