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Postnatal germ cell development in cryptorchid boys

Asian Journal of Andrology 2020年第3期22卷 258-264页

作者： Li-Hua Dong Simone HildorF Erik Clasen-Linde Kolja Kvist dina cortes Jorgen Thorup Claus Yding Andersen Laboratory of Reproductive Biology Copen hagen University Hospital RigshospitaletCopenhage n 2100Den mark Faculty of Health and Medical Scie nces University of CopenhagenCopenhagen 2200Denmark Department of Pathology Copenhagen University Hospital RigshospitaletCopenhagen 2100Denmark Department of Pediatric Surgery Copenhagen University Hospital RigshospitaletCopenhagen 2100Denmark Department of Pediatrics Copenhagen University Hospital HvidovreCopenhagen 2650Denmark.

Cryptorchidism is associated with infertility in *** orchiopexy is suggested to reduce the *** is lacking on the potential link between infant germ cell maturation and the risk of future *** objective of the study was to evaluate age-related germ cell development in *** for markers of germ cell development(octamerbinding transcription factor 3/4[0CT3/4],placental alkaline phosphatase[PLAP],KIT proto-oncogene[C-KIT],podoplanin[D2-40],Lin-28 homolog A[LIN28],and G antigen 7[GAGE-7])was performed in testicular biopsies from 40 cryptorchid boys aged 4-35 mon *** cell nu mbers and distributi ons were evaluated in cross sectio ns of semi niferous tubules,with and without immuno staini ***3/4,D2-40,and LIN 28 were gen erally expressed in the early stages of germ cell development,as show n by positive expression in germ cells in the central region of seminiferous tubules・In contrast,PLAP and GAGE-7 were expressed in both central and peripheral parts of the tubules in the early stages of development and expressed mainly in a peripheral position with advancing *** cell maturation was delayed in this study population as compared with that observed in our previous study on germ cell markers in a healthy *** number of GAGE-7-positive germ cells per tubular cross section obtained by immunostaining was significantly higher than that obtained by standard hematoxylin and eosin *** immunostaining revealed heterogeneity in germ cell development in cryptorchid *** results shed light on the pathophysiology of germ cell development in boys with cryptorchidism.

关键词： cryptorchidism germ cells immunostaining male fertility preservation reproductive index testis

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