PMID: 3214933Dec 1, 1988Paper

Adrenal and intestinal secretion of catecholamines and neuropeptides during splanchnic artery occlusion shock

Circulatory Shock
D M Gaumann, T L Yaksh

Abstract

Plasma levels of catecholamines and neuropeptides (met-enkephalin, ME; neurotensin, NT; neuropeptide Y, NPY; peptide YY, PYY; vasoactive intestinal polypeptide, VIP; cholecystokinin, CCK; bombesin, BMB) were examined in the femoral artery (FA), adrenal vein (AD), and portal vein (PV), in eight cats under halothane anesthesia at baseline (S1), at the end of a 2-hr ligation period of the major splanchnic arteries (celiac trunk, superior and inferior mesenteric arteries) (S2), immediately (S3) and 30 min (S4) after splanchnic reperfusion, and after the administration of naloxone (1 mg/kg, i.v.) (S5). During S2, there was a significant increase in portal vein VIP levels, while the other variables (hemodynamics, hormone levels) remained unchanged. During early shock (S3), significant (10- to 30-fold) increases in adrenal secretion of all catecholamines, ME, NT, NPY, and PYY occurred, while VIP and PYY were significantly released into the PV, and two- to tenfold increases in femoral artery catecholamine and ME levels were observed. Later shock (S4) led to a further fivefold increase, compared to S3, in adrenal release of norepinephrine (NE), dopamine (DA), and ME. Following naloxone administration (S5), the adrenal medullary release ...Continue Reading

Citations

Jan 1, 1994·Research in Experimental Medicine. Zeitschrift Für Die Gesamte Experimentelle Medizin Einschliesslich Experimenteller Chirurgie·A AnemanE Haglind
Oct 1, 1991·Journal of Anesthesia·T OkaA Kochi
Apr 5, 2001·Peptides·D Renshaw, J P Hinson
Feb 5, 2002·Peptides·Eva Ekblad, Frank Sundler
Oct 1, 1990·Zentralblatt für Veterinärmedizin. Reihe A·D M Gaumann, T L Yaksh

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