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Vitamin D supplement improved testicular function in diabetic rats
Chenzhao Ding1, Qinzhu Wang2, Yue Hao1
1Division of Endocrinology, Department of Internal Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Institute of Clinical Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
Biochemical and Biophysical Research Communications
|March 23, 2016
Summary
Vitamin D (1,25(OH)2D3) supplementation effectively reversed testicular damage in diabetic rats. This vitamin D treatment normalized testosterone levels, improved sperm production, and reduced inflammation and cell death.
Area of Science:
- Endocrinology
- Reproductive Biology
- Diabetology
Background:
- Diabetes mellitus causes testicular dysfunction, characterized by inflammation, impaired sperm production, and reduced testosterone.
- Hyperglycemia in diabetes negatively impacts redox balance and elevates inflammatory cytokines, contributing to testicular damage.
Purpose of the Study:
- To investigate the protective effects of 1,25(OH)2D3 against testicular lesions in a diabetic rat model.
- To elucidate the mechanisms underlying 1,25(OH)2D3's influence on steroidogenesis and spermatogenesis in diabetic conditions.
Main Methods:
- Diabetic rats were treated with two different doses of 1,25(OH)2D3 for 12 months.
- Assessment of inflammatory biomarkers, sperm production, redox balance, serum testosterone, gene expression (reproductive genes, Bcl-2, Bax, COX-2), and caspase activity.
Main Results:
- 1,25(OH)2D3 treatment normalized hyperglycemia-induced alterations, including inflammation and impaired sperm function.
- The vitamin D compound effectively adjusted reproductive gene expression and testicular androgen synthesis.
- Upregulation of Bcl-2 and downregulation of Bax and COX-2 were observed, alongside inhibition of caspase cascade, indicating reduced apoptosis.
Conclusions:
- Vitamin D supplementation demonstrates a protective role against testicular damage in diabetic rats.
- 1,25(OH)2D3 mitigates testicular injury by suppressing inflammation, alleviating apoptotic cell death, and enhancing reproductive and testosterone synthesis pathways.
