An histochemical study of endocrine cells in the alimentary tract of the red-eared slider, Trachemys scripta elegans

붉은귀거북이 소화관 내분비세포에 관한 조직화학적 연구

  • Lee, Hyeung-sik (Department of Biology, Faculty of Natural Science, Kyungsan University) ;
  • Ku, Sae-kwang (Pharmacology & Toxicology Lab., Central Research Laboratories, Dong-Wha Pharm. Ind. Co.) ;
  • Park, Ki-dae (Department of Histology, College of Veterinary Medicine, Kyungpook National University) ;
  • Lee, Jae-hyun (Department of Histology, College of Veterinary Medicine, Kyungpook National University) ;
  • Lee, Mal-soon (Department of Health Service Management, Faculty of Health Science, Kyungsan University)
  • 이형식 (경산대학교 자연과학부 생물학전공) ;
  • 구세광 (동화약품(주)중앙연구소 약리독성연구실) ;
  • 박기대 (경북대학교 수의과대학 조직학교실) ;
  • 이재현 (경북대학교 수의과대학 조직학교실) ;
  • 이말순 (경산대학교 보건학부 보건관리전공)
  • Accepted : 2000.05.03
  • Published : 2000.06.25

Abstract

The regional distributions and relative frequencies of endocrine cells were studied histochemically (Grimelius and Masson-Hamperl (M-H) silver methods) in the alimentary tract of the red-eared slider, Trachemys scripta elegans. Samples were taken from the esophagus, fundus, pylorus, duodenum, jejunum, ileum and large intestine. Argyrophil (Grimelius-positive) cells and argentaffin (M-H-positive) cells were found in the whole alimentary tract in this study. Spherical to spindle and/or oval to round-shaped argyrophil or argentaffin cells were located in the gastric glands of the stomach regions, in the basal portion of the epithelium of intestinal tract or the esophagus with variable frequencies. Argentaffin cells were more numerously detected in the whole alimentary tract compared with those of argyrophil cells in this study. Argyrophil cells were observed in the whole alimentary tract including the esophagus and the most predominant region was the rectum with moderate frequency. The relative frequency of these cells was rare in the esophagus, fundus, duodenum, jejunum and ileum, respectively and a few frequency in the pylorus. Argentaffin cells were also observed in the whole alimentary tract including the esophagus and the most numerously demonstrated region was the rectum with numerous frequency. They were observed with a few frequencies in the remaining regions of the alimentary tract except for the rectum, respectively. However, to know the exact type of the argyrophil cells and argentaffin cells that were observed in this study, more developmental methods such as immunohistochemistry were needed.