caa a22 4500 477095348 CHVBK 20180405111526.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00198329 doi (NATIONALLICENCE)springer-10.1007/BF00198329 Kressin Monika Department of Veterinary Anatomy, Histology and Embryology, University of Giessen, Frankfurter Strasse 98, D-35392, Giessen, Germany aut Oxyntic cell differentiation during physiological cell renewal in abomasal mucosa of adult cattle [Elektronische Daten] [Monika Kressin] The origin and differentiation of the oxyntic cell lineage during physiological cell renewal was investigated by light and electron microscopy in the abomasal mucosa of adult cattle. The morphologically heterogeneous oxyntic cell population exhibits various developmental subtypes depending on the position within the oxyntic unit. Pre-oxyntic cells of the isthmus and neck represent the immature precursors. Though heterogeneous with respect to the degree of canalicular and tubulovesicular membrane development, they all contain secretory granules resembling those of either isthmus cells, immature surface mucous cells, neck cells or young chief cells. A secretory granule-free stem cell is not present in the bovine. Downward to the gland base genesis of canalicular as well as tubulovesicular membranes is gradually completed; thus pre-oxyntic cells give rise to mature oxyntic cells. Older degenerative oxyntic cells, primarily located within the gland bottom, are characterized by progressive involution of canalicular and tubulovesicular membranes. Towards the pit, differentiation of pre-oxyntic cells is associated with atypical and incomplete development of canaliculi and tubulovesicles. In consequence, these superficial oxyntic cells have a reduced secretory capacity from a morphological point of view. Springer-Verlag, 1996 Stomach nationallicence Parietal cell lineage nationallicence Heterogeneity nationallicence Electron microscopy nationallicence Cattle nationallicence Anatomy and Embryology Springer-Verlag 193/3(1996-03-01), 259-269 0340-2061 193:3<259 1996 193 429 https://doi.org/10.1007/BF00198329 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00198329 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Kressin Monika Department of Veterinary Anatomy, Histology and Embryology, University of Giessen, Frankfurter Strasse 98, D-35392, Giessen, Germany aut NATIONALLICENCE 773 0- Anatomy and Embryology Springer-Verlag 193/3(1996-03-01), 259-269 0340-2061 193:3<259 1996 193 429 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer