PMID- 33565168 OWN - NLM STAT- MEDLINE DCOM- 20210621 LR - 20220531 IS - 1439-0272 (Electronic) IS - 0303-4569 (Linking) VI - 53 IP - 4 DP - 2021 May TI - Oyster peptide prevents the occurrence of exercise-hypogonadal male condition by improving the function of pituitary gonadal axis in male rats. PG - e14005 LID - 10.1111/and.14005 [doi] AB - This study evaluates the protective role of oyster peptide (OP) on the occurrence of Exercise-Hypogonadal Male Condition. Male rats were given heavy-load swimming training and / or OP was supplemented for 6 consecutive weeks. After heavy-load training, sperm count, sperm viability and sperm motility in epididymis, testosterone in serum and testis, glutathione peroxidase (GSH-px) and androgen receptor (AR) in testis and mating times were remarkably decreased, malondialdehyde (MDA), capture latency and mating latency were significantly increased, mRNA expression of steroidogenic acute regulatory (StAR) and P450 cholesterol side-chain cleavage enzyme (P450scc) were obviously down-regulated, but serum follicle-stimulating hormone (FSH) and luteinising hormone (LH) were not statistically changed. Conversely, when OP was supplemented at heavy-load training, sperm count, sperm viability and sperm motility in epididymis, serum FSH, LH, testosterone, GSH-px, superoxide dismutase (SOD), testosterone, AR in testis and mating times were dramatically increased, while testicular MDA, capture latency and mating latency were significantly decreased, and mRNA expression of StAR, StARD7, P450scc and 3beta-hydroxysteroid dehydrogenase (3beta-HSD) were significantly up-regulated. In conclusion, heavy-load training causes testicular spermatogenic and steroidogenic disorders by enhancing the generation of reactive oxygen species (ROS), which can be protected by the co-administration of OP by enhancing the function of pituitary gonad axis and lowering ROS generation. CI - (c) 2021 Wiley-VCH GmbH. FAU - Jin, Qi-Guan AU - Jin QG AUID- ORCID: 0000-0002-5539-8779 AD - College of Physical Education, Yangzhou University, Yangzhou, China. FAU - Shi, Wen-Ting AU - Shi WT AD - College of Physical Education, Yangzhou University, Yangzhou, China. FAU - Wang, Yu-Chen AU - Wang YC AD - Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd., Beijing, China. FAU - Li, Shu-Yan AU - Li SY AD - College of Physical Education, Yangzhou University, Yangzhou, China. FAU - Xue, Chen AU - Xue C AD - Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd., Beijing, China. FAU - Xu, Hao-Ran AU - Xu HR AD - College of Physical Education, Yangzhou University, Yangzhou, China. FAU - Wu, Mei-Tong AU - Wu MT AD - College of Physical Education, Yangzhou University, Yangzhou, China. FAU - Wei, Ying AU - Wei Y AUID- ORCID: 0000-0002-0943-1793 AD - Beijing Engineering Research Center of Protein and Functional Peptides, China National Research Institute of Food and Fermentation Industries Co., Ltd., Beijing, China. LA - eng GR - 2016YFD0400603/National Key Research and Development project in China/ GR - 2017PFP002/Open Project of the Beijing Engineering Research Center of Protein and Functional Peptides/ PT - Journal Article DEP - 20210210 PL - Germany TA - Andrologia JT - Andrologia JID - 0423506 RN - 0 (Carrier Proteins) RN - 3XMK78S47O (Testosterone) RN - 9002-67-9 (Luteinizing Hormone) SB - IM MH - Animals MH - Carrier Proteins MH - Luteinizing Hormone MH - Male MH - *Ostreidae MH - Rats MH - Sperm Count MH - *Sperm Motility MH - Testis MH - Testosterone OTO - NOTNLM OT - exercise-hypogonadal male condition OT - oyster peptide OT - reactive oxygen species OT - spermatogenesis OT - steroidogenesis EDAT- 2021/02/11 06:00 MHDA- 2021/06/22 06:00 CRDT- 2021/02/10 06:01 PHST- 2021/01/21 00:00 [revised] PHST- 2020/12/04 00:00 [received] PHST- 2021/01/22 00:00 [accepted] PHST- 2021/02/11 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2021/02/10 06:01 [entrez] AID - 10.1111/and.14005 [doi] PST - ppublish SO - Andrologia. 2021 May;53(4):e14005. doi: 10.1111/and.14005. Epub 2021 Feb 10.