TY - JOUR
T1 - Partial inhibition of nitric oxide synthesis in vivo does not inhibit glucose production in man
AU - Sprangers, Fleur
AU - Jellema, Wilbert T.
AU - Lopuhaä, Christa E.
AU - Endert, Erik
AU - Ackermans, Mariëtte T.
AU - van Lieshout, Johannes J.
AU - van der Zee, Jaring S.
AU - Romijn, Johannes A.
AU - Sauerwein, Hans P.
PY - 2002
Y1 - 2002
N2 - In the liver, paracrine interaction between Kupffer cells and hepatocytes influences glucose metabolism. In vitro in rats, nitric oxide (NO), a paracrine mediator, inhibits several pathways of hepatic glucose production. The role of NO on glucose production has not been studied in vivo in humans. Glucose production was measured during N-G-monomethyl-L-arginine, monoacetate salt (L-NMMA) infusion, an inhibitor of NO synthesis in vivo, in 6 healthy men fasting 23 hours in a saline-controlled crossover study. During L-NMMA infusion, NO output decreased 40% to 50%, peripheral vascular resistance increased approximately 22%, and cardiac output (CO) decreased approximately 14%. The decrease in glucose production was not different between L-NMMA and saline. Glucose concentration, substrate supply, and glucoregulatory hormone concentrations were not different; epinephrine was lower with L-NMMA. A 40% to 50% inhibition of NO synthesis in vivo in humans does not affect glucose production during short-term fasting. The hypothesis that NO is an important modulator of basal glucose production in healthy humans in vivo should therefore be rejected. Copyright (C) 2002 by W.B. Saunders Company
AB - In the liver, paracrine interaction between Kupffer cells and hepatocytes influences glucose metabolism. In vitro in rats, nitric oxide (NO), a paracrine mediator, inhibits several pathways of hepatic glucose production. The role of NO on glucose production has not been studied in vivo in humans. Glucose production was measured during N-G-monomethyl-L-arginine, monoacetate salt (L-NMMA) infusion, an inhibitor of NO synthesis in vivo, in 6 healthy men fasting 23 hours in a saline-controlled crossover study. During L-NMMA infusion, NO output decreased 40% to 50%, peripheral vascular resistance increased approximately 22%, and cardiac output (CO) decreased approximately 14%. The decrease in glucose production was not different between L-NMMA and saline. Glucose concentration, substrate supply, and glucoregulatory hormone concentrations were not different; epinephrine was lower with L-NMMA. A 40% to 50% inhibition of NO synthesis in vivo in humans does not affect glucose production during short-term fasting. The hypothesis that NO is an important modulator of basal glucose production in healthy humans in vivo should therefore be rejected. Copyright (C) 2002 by W.B. Saunders Company
U2 - https://doi.org/10.1053/meta.2002.28958
DO - https://doi.org/10.1053/meta.2002.28958
M3 - Article
C2 - 11782873
SN - 0026-0495
VL - 51
SP - 57
EP - 64
JO - Metabolism: Clinical and Experimental
JF - Metabolism: Clinical and Experimental
IS - 1
ER -