Abstract
Acute experiments on anesthetized rats showed that group B nerve fibers of the subphrenic portion of the vagus nerve do not participate in the regulation of gastric secretion. Gastric acid production is mainly controlled by fast C-fibers (2.11±0.09 m/sec), while secretion of pepsinogen and bicarbonates depends on activity of both fast and slow (0.95±0.11 m/sec) C-fibers. Some fast conduction C-fibers stimulating the release of bicarbonates in the stomach are capsaicin-sensitive afferents. The local effect of these afferents depends on cholinergic transmission and most probably it is mediated via its modulation.
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Zolotarev, V.A., Khropycheva, R.P. & Polenov, S.A. Selective Regulation of Acid, Pepsinogen, and Bicarbonate Secretion in the Stomach by Different C-Fiber Populations of Vagus Nerve. Bulletin of Experimental Biology and Medicine 133, 210–213 (2002). https://doi.org/10.1023/A:1015810011726
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DOI: https://doi.org/10.1023/A:1015810011726