Segi's cap: group formation of gut endocrine cells at the tip of the villi in human embryonal intestine.
نویسندگان
چکیده
Large groups of basal-granulated (entero-endocrine) cells occur on the top of villi in the duodenum and upper jejunum of the human fetus older than five months of gestation. This structure was discovered and described by Segi(1935), hence named Segi's cap. By the immunocytochemical technique, somatostatin-, gastrin- and motilin-producing cells were demonstrated. By electron microscopy, EC, D and S cells were identified in the cap. There were autonomic nerves in the lamina propria adjacent to Segi's cap. No intraepithelial lymphocytes were found in the villi with Segi's cap.
منابع مشابه
Perinatal changes in bovine SEGI's caps with special reference to their endocrine cells migrating into the lamina propria.
Large aggregations of endocrine cells at the top of villi in the upper small intestine, discovered by SEGI (1935) in human fetuses and hence called SEGI's caps, have been known to occur also in bovine and porcine fetuses. Using bovine fetuses and newborns, this study aimed to clarify the fate of and changes in the SEGI's cap during the perinatal period. Immunocytochemistry was performed for CgA...
متن کاملSegi's cap: huge aggregation of basal-granulated cells discovered by Segi (1935) on the intestinal villi of the human fetus.
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ورودعنوان ژورنال:
- Nagoya journal of medical science
دوره 56 1-4 شماره
صفحات -
تاریخ انتشار 1993