{"title":"Histological analysis of cheetah testes focused on the germ cells and Sertoli cells.","authors":"Ryosuke Shimizu, Kaori Ota, Kosuke Toda, Yuto Yoshimoto, Saori Sato, Kazumi Shimada, Ryo Tanaka, Lina Hamabe, Kentaro Nagaoka, Yuki Yamamoto","doi":"10.1292/jvms.25-0059","DOIUrl":null,"url":null,"abstract":"<p><p>Understanding of relationship between physiological condition and testicular function in captive cheetahs would be beneficial for their successful breeding and conservation. This study investigated the states of germ cells and Sertoli cells in three captive cheetahs with different ages and health conditions using histological methods. The disarrangement of Sertoli cells and germ cells in seminiferous tubules was shown in all individuals. Many Sertoli cells detached from the basal membrane suggesting the decreased blood testis barrier. Spermatogenesis was observed in two cheetahs, whereas the number of elongated spermatids was lower than in domestic cats. One old cheetah with long-term health problem had no spermatids. These findings would be useful basic information for improving the reproduction of cheetahs in zoos.</p>","PeriodicalId":49959,"journal":{"name":"Journal of Veterinary Medical Science","volume":" ","pages":"966-971"},"PeriodicalIF":1.1000,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12344315/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Veterinary Medical Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1292/jvms.25-0059","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/6/18 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Understanding of relationship between physiological condition and testicular function in captive cheetahs would be beneficial for their successful breeding and conservation. This study investigated the states of germ cells and Sertoli cells in three captive cheetahs with different ages and health conditions using histological methods. The disarrangement of Sertoli cells and germ cells in seminiferous tubules was shown in all individuals. Many Sertoli cells detached from the basal membrane suggesting the decreased blood testis barrier. Spermatogenesis was observed in two cheetahs, whereas the number of elongated spermatids was lower than in domestic cats. One old cheetah with long-term health problem had no spermatids. These findings would be useful basic information for improving the reproduction of cheetahs in zoos.
期刊介绍:
JVMS is a peer-reviewed journal and publishes a variety of papers on veterinary science from basic research to applied science and clinical research. JVMS is published monthly and consists of twelve issues per year. Papers are from the areas of anatomy, physiology, pharmacology, toxicology, pathology, immunology, microbiology, virology, parasitology, internal medicine, surgery, clinical pathology, theriogenology, avian disease, public health, ethology, and laboratory animal science. Although JVMS has played a role in publishing the scientific achievements of Japanese researchers and clinicians for many years, it now also accepts papers submitted from all over the world.