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• W4285741595 abstract "Asthenozoospermia is a common form of abnormal sperm quality in idiopathic male infertility. While most sperm-mediated causes have been investigated in detail, the significance of seminal plasma has been neglected. Herein, we aimed to investigate the possible pathogenic factors leading to decreased sperm motility based on seminal plasma. Semen was collected from normo- (NOR, <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mi>n</mi> <mo>=</mo> <mn>70</mn> </math> ), idiopathic oligo- (OLI, <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mi>n</mi> <mo>=</mo> <mn>57</mn> </math> ), and idiopathic asthenozoospermic (AST, <math xmlns=http://www.w3.org/1998/Math/MathML id=M3> <mi>n</mi> <mo>=</mo> <mn>53</mn> </math> ) patients. Using attenuated total reflection-Fourier transform infrared coupled with chemometrics, distinct differences in the biochemical compositions of nucleic acids, protein structure (amides I, II, and III), lipids, and carbohydrates in seminal plasma of AST were observed when compared to NOR and OLI. Compared with NOR and OLI, the levels of peptide aggregation, protein phosphorylation, unsaturated fatty acid, and lipid to protein ratio were significantly increased in AST; however, the level of lipid saturation was significantly decreased in seminal plasma of AST. Compared with NOR, the levels of ROS, MDA, 8-iso-prostaglandin F2α (8-isoPGF2α), and the ratio of phospho-AMPKα/AMPKα1 were significantly increased in AST; however, the levels of SOD, glutathione S-transferase (GSTs), protein carbonyl derivative (PC), and the ratio of phospho-Rictor/Rictor were significantly decreased in seminal plasma of AST. Changes of the AMPK/mTORC2 signaling in the seminal microenvironment possibly induce abnormal glucose and lipid metabolism, which impairs energy production. Oxidative stress potentially damages seminal plasma lipids and proteins, which in turn leads to impaired sperm structure and function. These findings provide evidence that the changes in seminal plasma compositions, oxidative stress, and activation of the AMPK/mTORC2 signaling contribute to the development of asthenozoospermia." @default.
• W4285741595 created "2022-07-18" @default.
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• W4285741595 date "2022-06-08" @default.
• W4285741595 modified "2023-10-13" @default.
• W4285741595 title "The Activated AMPK/mTORC2 Signaling Pathway Associated with Oxidative Stress in Seminal Plasma Contributes to Idiopathic Asthenozoospermia" @default.
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• W4285741595 doi "https://doi.org/10.1155/2022/4240490" @default.
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