Immunocytochemical localization of follicle stimulating hormone in normal human stomach

Mandrekar, Pranoti S. ; Sheth, Anil R. ; Doctor, Vatsala M. ; Zaveri, Jayesh P. ; Sheth, Nandini A. (1990) Immunocytochemical localization of follicle stimulating hormone in normal human stomach The Anatomical Record, 227 (3). pp. 334-339. ISSN 0003-276X

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Immunoreactive follicle-stimulating hormone (IR-FSH) is detected in sections of formalin-fixed and paraffin-embedded gastric mucosal tissue of normal men, using the immunoperoxidase staining technique and specific antisera to hFSH (NIDDK, NIH). Positive staining for IR-FSH was detected in the parietal cells lining the gastric glands of the intermediate zone. The staining was intracytoplasmic and distributed throughout the cytoplasm. IR-FSH was also found to be present in the basal part of the foveolar epithelium. Stromal tissue and nuclei were devod of the stain. The zymogen cells in the deeper region of the mucosa did not show any detectable staining for IR-FSH. The presence of IR-FSH in gastric mucosa was also detected by radioimmunoassay. Gel chromatography of the gastric tissue extract showed a single peak of FSH immunoreactivity that coeluted with the 125I-labled highly purified FSH preparation (NIDDK, NIH). Furthermore, the FSH in the pituitary tissue extract had a chromatographic profile similar to that of IR-FSH from gastric tissue, and 125I-FSH labeled highly purified FSH, indicating a close resemblance in their molecular sizes. These results demonstrate that IR-FSH is present in the normal human gastric mucosa. The role of this regulatory petpide in gastric tissue, if any, needs to be investigated.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons.
ID Code:77963
Deposited On:16 Jan 2012 12:56
Last Modified:16 Jan 2012 12:56

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