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The efficacy of intraperitoneal GYY4137 therapy and intratesticular GYY4137 therapy in an experimental rat model was investigated. Four groups were set up as the sham-operation group, torsion/detorsion (T/D) group, T/D plus intraperitoneal GYY4137 (G-IP) group, and T/D plus intratesticular GYY4137 (G-IT) group. In order to establish a testicular T/D model, the left testis was operated and the rotation reached 720┬░ clockwise which lasted 1 h before reperfusion. The G-IP group accepted 100 ┬Ámol/kg of GYY4137 intraperitoneally 30 min after testicular rotation, while the G-IT group was treated with the same dose by intratesticular injection. Six h after detorsion, the testis was collected and subsequently assessed. The T/D group showed significant changes in histology and an enhancement in the level of oxidative stress and apoptosis compared to the sham-operation group. The expression of Caspase-3 and Bax turned out to be strengthened by T/ D and relatively decreased with GYY4137 treatment in both the G-IP and G-IT groups. Moreover, the Bcl-2 expression was inhibited in the T/D group, and promoted by GYY4137 in the G-IP and G-IT groups. GYY4137, moderating these observed changes, displayed a more protective effect with G-IT therapy than G-IP therapy.This study indicated that the efficacy of intratesticular therapy with GYY4137 is better than that of intraperitoneal therapy, which may provide a more valuable approach for testicular torsion therapy.

Citation

Li-Jia Chen, Jin-Zhuo Ning, Fan Cheng, Ting Rao, Wei-Min Yu, Yuan Ruan, Jun-Feng Wu, Ren-Gui Li, Rong-Xin Geng. Comparison of Intraperitoneal and Intratesticular GYY4137 Therapy for the Treatment of Testicular Ischemia Reperfusion Injury in Rats. Current medical science. 2020 Apr;40(2):332-338

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PMID: 32337694

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