CONTEXT: IGF binding protein-1 (IGFBP-1) is essential for IGF-I bioavailability. High levels of IGFBP-1 are encountered in critically ill patients and are a good predictor marker in acute myocardial infarction. The mechanisms responsible for the elevated IGFBP-1 levels in these conditions are still unclear. Interestingly, high levels of vasopressin have been reported in the above-mentioned conditions. OBJECTIVE: To study the effect of vasopressin on IGFBP-1 in humans. DESIGN:Placebo-controlled cross-over study in patients with central diabetes insipidus (CDI) in whom potential interference from endogenous vasopressin secretion is minimized. After a 3-day desmopressin washout period, each patient received i.v. saline on day 1 and desmopressin (3 mug) on day 2. Blood samples were taken after administration, every 2 h during the whole night, starting at 2000 h. PATIENTS AND SETTING:Fourteen inpatients with CDI in an endocrinology department of a university hospital. RESULTS:Serum IGFBP-1 increased within 4 h after 1-desamino-8-d-arginine vasopressin (DDAVP) by 375+/-73%, compared with a spontaneous fasting increase by 252+/-46% following placebo administration (P<0.05). No changes were registered in the levels of either classically regulators of IGFBP-1 (insulin, glucagon, and cortisol) or of IGF-I and glucose. The decrease in plasma osmolarity induced by DDAVP did not precede the increase in IGFBP-1. CONCLUSIONS:DDAVP increases serum levels of IGFBP-1. Further investigation is essential to unravel the clinical potential of this interaction in conditions associated with high IGFBP-1 levels.
RCT Entities:
CONTEXT: IGF binding protein-1 (IGFBP-1) is essential for IGF-I bioavailability. High levels of IGFBP-1 are encountered in critically illpatients and are a good predictor marker in acute myocardial infarction. The mechanisms responsible for the elevated IGFBP-1 levels in these conditions are still unclear. Interestingly, high levels of vasopressin have been reported in the above-mentioned conditions. OBJECTIVE: To study the effect of vasopressin on IGFBP-1 in humans. DESIGN: Placebo-controlled cross-over study in patients with central diabetes insipidus (CDI) in whom potential interference from endogenous vasopressin secretion is minimized. After a 3-day desmopressin washout period, each patient received i.v. saline on day 1 and desmopressin (3 mug) on day 2. Blood samples were taken after administration, every 2 h during the whole night, starting at 2000 h. PATIENTS AND SETTING: Fourteen inpatients with CDI in an endocrinology department of a university hospital. RESULTS: Serum IGFBP-1 increased within 4 h after 1-desamino-8-d-arginine vasopressin (DDAVP) by 375+/-73%, compared with a spontaneous fasting increase by 252+/-46% following placebo administration (P<0.05). No changes were registered in the levels of either classically regulators of IGFBP-1 (insulin, glucagon, and cortisol) or of IGF-I and glucose. The decrease in plasma osmolarity induced by DDAVP did not precede the increase in IGFBP-1. CONCLUSIONS: DDAVP increases serum levels of IGFBP-1. Further investigation is essential to unravel the clinical potential of this interaction in conditions associated with high IGFBP-1 levels.
Authors: Linda G Mellbin; Lars Rydén; Kerstin Brismar; Nils G Morgenthaler; John Ohrvik; Sergiu B Catrina Journal: Diabetes Care Date: 2010-04-22 Impact factor: 17.152
Authors: Kristian Vinter Juul; Niels Jessen; Donald L Bliwise; Egbert van der Meulen; Jens Peter Nørgaard Journal: Endocrine Date: 2016-03-22 Impact factor: 3.633