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¸ù°ñ¸®¾È Àúºô (Meriones unguiculatus) ÀÇ À§Àå°ü ³»ºÐºñ ¼¼Æ÷¿¡ ´ëÇÑ ¸é¿ªÁ¶Á÷È­ÇÐÀû ¿¬±¸ Immunohistochemical study of the gastrointestinal endocrine cells in the Mongolian Gerbils , Meriones unguiculatus

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ÀÌÀçÇö/LEE, Jae Hyun ÀÌÇü½Ä/¹Ú±â´ë/±¸¼¼±¤/±è±æ¼ö/Lee, Hyeung Sik/Park, Ki Dae/Kn, See Kwang/Kim, Kill Soo

Abstract

¸ù°ñ¸®¾È Àúºô(Meriones unguiculatus)ÀÇ À§Àå°üÀ» ºÐ¹®ºÎ, ±âÀúºÎ, À¯¹®ºÎ, ½ÊÀÌÁöÀå, °øÀå, ȸÀå, ¸ÍÀå, °áÀå ¹× Á÷ÀåÀÇ 9ºÎºÐÀ¸·Î ±¸ºÐÇÏ°í ÀÌµé ºÎÀ§¿¡¼­ cholecystokinin(CCK)-8, gastrin, secretin, pancreatic, polypeptide(PP), somatostatin, serotonin, glucagon ¹× insulin µî 8Á¾ÀÇ Ç×Ç÷û¿¡ ´ëÇÑ ³»ºÐºñ ¼¼Æ÷ÀÇ ºÎÀ§º° ºÐÆ÷ ¹× ÃâÇöºóµµ¸¦ ¸é¿ªÁ¶Á÷È­ÇÐÀûÀ¸·Î °üÂûÇÏ¿´´ø ¹Ù, CCK-8, gastrin, somatostatin ¹× serotonin ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀÌ °üÂûµÇ¾ú´Ù. ÀÌµé ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀº À§ ºÎÀ§¿¡¼­ ¿øÇü¿¡¼­ Ÿ¿øÇüÀ¸·Î ÁÖ·Î À§»ù(gastric gland) ¶Ç´Â ÁÖ¼¼Æ÷¿Í º®¼¼Æ÷ »çÀÌ¿¡¼­ °üÂûµÇ¾ú°í, Àå ºÎÀ§¿¡¼­´Â ¿øÇü ¶Ç´Â Ÿ¿øÇüÀÇ ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀÌ °øÀåÀÇ Àå»ù(intestinal gland)¿¡¼­ °üÂûµÇ¾úÀ¸¸ç, Ÿ¿øÇü¿¡¼­ ¹æÃßÇüÀÇ ¼¼Æ÷µéÀÌ Àå»óÇǼ¼Æ÷ »çÀÌ¿¡¼­ °üÂûµÇ¾ú´Ù. CCK-8 ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀº À¯¹®ºÎ¿Í ½ÊÀÌÁöÀå¿¡ ±¹ÇÑµÇ¾î ´Ù¼ö ¶Ç´Â ¼Ò¼ö °üÂûµÇ¾úÀ¸¸ç gastrin ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀº À¯¹®ºÎ¿¡ ±¹ÇÑµÇ¾î ´Ù¼ö °üÂûµÇ¾ú´Ù. Somatostatin ¸é¿ª¹ÝÀÀ¼¼Æ÷µé ¿ª½Ã gastrin ¸é¿ª¹ÝÀÀ¼¼Æ÷µé°ú À¯»çÇÏ°Ô À¯¹®ºÎ¿¡ ±¹ÇѵǾî ÁߵÀÇ ÃâÇöºóµµ¸¦ ³ªÅ¸³»¾ú°í, serotonin ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀº ºÐ¹®ºÎ¿Í ¸ÍÀåÀ» Á¦¿ÜÇÑ À§Àå°ü ÀüºÎÀ§¿¡ °ÉÃÄ Áߵ ¶Ç´Â ´Ù¼ö °üÂûµÇ¾úÀ¸³ª, secretin, PP, glucagon ¹× insulin ¸é¿ª¹ÝÀÀ¼¼Æ÷µéÀº °üÂûµÇÁö ¾Ê¾Ò´Ù. À̻󿡼­ ¸ù°ñ¸®¾È ÀúºôÀÇ À§Àå°ü¿¡ Á¸ÀçÇÏ´Â ³»ºÐºñ ¼¼Æ÷µéÀÇ Á¾·ù ¹× ÃâÇöºóµµ´Â ´Ù¸¥ ¼³Ä¡·ù¿¡ ºñÇØ ¸Å¿ì Àû°Å³ª ³·Àº °ÍÀ¸·Î °üÂûµÇ¾úÀ¸¸ç, ÀÌµé ³»ºÐºñ ¼¼Æ÷µéÀÇ ÃâÇöºÎÀ§ ¿ª½Ã ´Ù¸¥ ¼³Ä¡·ù¿¡¼­¿Í´Â ´Þ¸® ÀϺΠºÎºÐ¿¡ ±¹ÇѵǴ °ÍÀ¸·Î °üÂûµÇ¾ú´Ù.
In order to study the regional distribution and relative frequency of the immunoreactive endocrine cells in the gastrointestinal tract of the Mongolian gerbil, Meriones unguiculatus, the gastrointestinal tract was divided into 9 portions (cardia, fundus, pylorus, duodenum, jejunum, ileum, cecum, colon and rectum) and immunostained by immunohistochemical (PAP) method using 8 types of specific antisera against cholecystokinin (CCK)-8, gastrin, secretin, pancreatic polypeptide (PP), somatostatin, serotonin, glucagon and insulin. CCK-8-, gastrin-, somatostatin- and serotonin-immunoreactive cells were demonstrated in this study. These immunoreactive cells were found in the gastric gland regions of the pylorus or between parietal and chief cells of the fundus with round to spherical shaped, and in the interepithelial regions of the intestinal tract with spherical to spindle shaped except for jejunum where some of immunoreactive cells were also observed in the intestinal glands with round to spherical shaped. CCK-8-immunoreactive cells were restricted to the pylorus and duodenum with numerous and a few frequency, respectively. Gastrin-immunoreactive cells were restricted to the pylorus with numerous frequency. Similar to those of gastrin-immunoreactive cells, somatostatin-immunoreactive cells were restricted to pylorus with moderate frequency. Serotonin-immunoreactive cells were detected throughout whole gastrointestinal tract except for cardia and cecum with moderate or numerous frequency. However, no secretin-, PP-, glucagon- and insulin-immunoreactive cells were observed in this study. From these results, the appearance type, regional distribution and relative frequency of immunoreactive endocrine cells in the gastrointestinal tract of the Mongolian gerbils were somewhat lowered or restricted compared to those of other mammals and these differences were might be caused by feeding habits and species specification.

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