Abstract
Allium tuberosum Rottler improves sexual function and is used in the treatment of impotence and spermatorrhea. However, its chemical composition and mechanism of action remain unclear. This study investigates the chemical composition and mechanism of action of Allium tuberosum Rottler co-processed with salt and wine (GZP) in modulating testicular mitochondrial autophagy for the treatment of asthenozoospermia in mice. Adenine gavage + cyclophosphamide intraperitoneal injection was used to establish the model of asthenozoospermia, and six Allium tuberosum Rottler processed products were compared in the pharmacological efficacy for the treatment of asthenozoospermia in mice. The liquid chromatograph mass spectrometer (LC-MS) assay was performed to analyse the compositional changes in the GZP. The mechanism of GZP in the treatment of asthenozoospermia in mice was further investigated. The mitophagy was detected by transmission electron microscope (TEM) and immunofluorescence, respectively. Reactive oxygen species (ROS) were detected by probe. Protein expression was determined by Western blotting. GZP exhibited optimal therapeutic effects on asthenozoospermia in mice. It showed the best therapeutic effect in improving the total number of spermatozoa, sperm survival rate, improving sperm viability and reducing sperm deformity rate, alleviating the abnormal pathological morphology of mice testis, and increasing the serum testosterone (T), follicle-stimulating hormone (FSH) and prolactin (PRL) levels in mice. The LC-MS detection found that Allicin showed the most significant increase in GZP. Besides, GZP reduced ROS level and inhibited mitophagy in mice testicular tissues. Meanwhile, it restrained the expression of PINK1, Parkin, Light chain 3II (LC3-II)/Light chain 3I (LC3-I) and Caspase-3 proteins. GZP improves asthenozoospermia via inhibiting excessive mitophagy and protects the integrity of mitochondria by blocking the PINK1/Parkin signaling pathway. During which, the Allicin may play an important role.
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