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  • Title: Jujing Zhuyu decoction inhibits apoptosis in rats with asthenozoospermia by regulating the mitochondrial apoptosis pathway.
    Author: Lin X, Li Q, Li H, Li C, Ye P, Chen S, Lu Y, Yuan Z, Qin G.
    Journal: Andrologia; 2022 Dec; 54(11):e14632. PubMed ID: 36379453.
    Abstract:
    Jujing Zhuyu decoction (JZD) is a traditional Chinese medicine that effectively improves sperm motility. However, the molecular mechanism of JZD on asthenozoospermia still remains unknown. In this study, we investigated the effect of JZD on the mitochondrial apoptosis pathway in an asthenozoospermia rat model. Sixty Sprague-Dawley rats were randomly divided into five groups-control, tripterygium glycosides (GTW) model, JZD-low (JZD-L), JZD-medium (JZD-M), and JZD-high (JZD-H) groups (n = 12/group). GTW was used to generate the asthenozoospermia model. The JZD-L, JZD-M, and JZD-H groups were administered 5, 10, or 15 g kg-1  day-1 of JZD granules respectively, for 4 weeks. Testicular tissue morphology was examined using histological staining, while sperm count was determined using manual and computer-aided semen analyses. Apoptosis of spermatogenic cells was detected with the TUNEL assay, and the expression of proteins and genes related to mitochondrial apoptosis was detected using western blotting and quantitative reverse transcription-polymerase chain reaction respectively. Histomorphological evaluation revealed superior seminiferous tubule structure and arrangement as well as improved spermatogenic cell morphology in the JZD-L, JZD-M, and JZD-H groups compared to those in the model group. Moreover, semen quality and the apoptotic index were significantly improved in the JZD-L, JZD-M, and JZD-H groups compared to those in the model group. Additionally, the mRNA expression and protein abundance of Apaf-1, Bax, Cyto-c, and caspase-3 was reduced, while those of Bcl-2 were increased in all JZD groups compared to those in the model group. JZD reduces the apoptosis rate of sperm cells and significantly promotes sperm survival by regulating the mitochondrial apoptosis pathway. This mechanism provides experimental support for the treatment of asthenozoospermia by JZD.
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