Abstract Title:

Genetic, biochemical and histopathological evaluations of thymoquinone on male reproduction system damaged by paclitaxel in Wistar rats.

Abstract Source:

Andrologia. 2021 Jul 26:e14192. Epub 2021 Jul 26. PMID: 34309886

Abstract Author(s):

Shima Moradi Maryamneghari, Vahid Shokri-Asl, Amir Abdolmaleki, Cyrus Jalili

Article Affiliation:

Shima Moradi Maryamneghari


This study was aimed to evaluate therapeutic effects of thymoquinone on male reproductive damages induced by paclitaxel. Forty-eight male rats were divided; control, paclitaxel (4 mg/kg), paclitaxel + thymoquinone (1.25, 2.5 and 5 mg/kg) and thymoquinone (1.25, 2.5 and 5 mg/kg). Paclitaxel and thymoquinone were administrated intraperitoneally for 4 and 14 days respectively. Then, the testes were removed for H&E staining, sperm parameters and apoptotic genes expression assessments. Serum levels of nitric oxide, total antioxidant capacity and testosterone were evaluated, and sperm DNA fragmentation was assessed. Paclitaxel significantly (p < .05) increased nitric oxide, decreased total antioxidant capacity and reduced testosterone levels than control group. Sperm motility, viability and count were significantly (p < .05) reduced in paclitaxel group than control. Co-administration of thymoquinone + paclitaxel caused decreased levels of nitric oxide and increased total antioxidant capacity, testosterone levels and reproductive parameters than paclitaxel group significantly (p < .05). Paclitaxel significantly (p < .05) increased caspase-3 and p-53 and decreased Bcl-2 genes expression than control. Sperm DNA fragmentation index was also increased significantly (p < .05) in paclitaxel group than control, and this value was decreased in whole doses of paclitaxel + thymoquinone groups than paclitaxel. Thymoquinone can alleviate the side effects of paclitaxel on the male reproductive system.

Study Type : Animal Study

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