Pyrroroquinoline Quinone (PQQ) Improves the Quality of Holstein Bull Semen during Cryopreservation
文献类型： 外文期刊
作者： Wang, Hai 1 ; Liu, Kexiong 1 ; Zeng, Weibin 2 ; Bai, Jiahua 1 ; Xiao, Linli 1 ; Qin, Yusheng 1 ; Liu, Yan 1 ; Xu, Xiaoling 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing 100097, Peoples R China
2.Shihezi Univ, Coll Anim Sci & Technol, Shihezi 832000, Peoples R China
关键词： pyrroroquinoline quinone (PQQ); reactive oxygen species (ROS); oxidative damage; cryopreservation; bull semen
期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2024 年 14 卷 20 期
页码：
收录情况： SCI
摘要： Cryopreserved semen is extensively utilized in the artificial insemination (AI) of domestic animals; however, suboptimal conception rates due to oxidative damage following AI continue to pose a challenge. The present study investigated the effects of Pyrroroquinoline Quinone (PQQ), a novel antioxidant, on the semen quality of Holstein bulls during cryopreservation, as well as its potential molecular mechanisms. Semen samples were diluted with varying concentrations of PQQ (0, 50 mu mol/L, 100 mu mol/L, 150 mu mol/L) prior to cryopreservation. Following the freeze-thaw process, a comprehensive evaluation was conducted to assess sperm motility, plasma membrane integrity, acrosome integrity, and the levels of reactive oxygen species (ROS), malondialdehyde (MDA), and adenosine triphosphate (ATP). Western blot analysis was employed to examine the levels of proteins including PGAM2, CAPZB, CAT, SOD1, and GPX1. Notably, the inclusion of 100 mu mol/L PQQ significantly enhanced sperm motility, membrane integrity, and acrosome integrity post freeze-thawing (p < 0.05). Furthermore, the group treated with 100 mu mol/L PQQ exhibited reduced levels of MDA and ROS (p < 0.05), while ATP levels were significantly elevated (p < 0.05). Interestingly, treatment with 100 mu mol/L PQQ resulted in decreased consumption of PGAM2, CAPZB, CAT, SOD1, and GPX1 proteins in sperm after freeze-thawing, compared to the control group (p < 0.05). These findings indicate that PQQ treatment enhances the quality of bull semen, mitigates oxidative stress damage, and ultimately improves the efficacy of sperm cryopreservation.
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