title: Effect of application route of the ghrelin analog BIM-28131 (RM-131) on body weight and body composition in a rat heart failure model.
abstract: Chronic heart failure (CHF) remains one of the most challenging diseases in terms of numbers and disease management, particularly so, if the CHF patient develops cardiac cachexia. Ghrelin and its analogs have been suggested to improve body weight and cardiac function in heart failure models and exploratory human clinical studies. However, most ghrelin compounds are peptides and need to be injected several times per day, which affects the quality of life of patients. Here, we compared two application routes, three times daily subcutaneous (sc) injections to continuous infusion using osmotic mini-pumps in a rat model of CHF. Moreover, the effects were also compared to three times daily sc injections of growth hormone (GH). Rats were treated for 28 d. The results show that treatment with 50 or 100 nmol/kg/d BIM-28131 (RM-131) potently induces body weight gain, fat and lean mass compared to placebo. The gain of lean mass was equal to the gain of lean mass in the 2mg/kg/d GH group and superior to 250 μg/kg/d GH. Both GH and BIM-28131 increased levels of insulin-like growth factor-1 to a similar extent. Little effect was seen on cardiac function; only cardiac output was improved by either high dose BIM-28131 or GH. Overall the effects of BIM-28131 were similar in both application routes.
authors: Applied Cachexia Research, Dept. of Cardiology, Charité Medical School, Berlin, Germany; Center for Cardiovascular Research, Charité Medical School, Berlin, Germany.
authors: Sandra
authors: S
authors: Palus
authors: Stephan
authors: S
authors: von Haehling
authors: Wolfram
authors: W
authors: Doehner
authors: Rakesh
authors: R
authors: Datta
authors: Jundong
authors: J
authors: Zhang
authors: Jesse Z
authors: JZ
authors: Dong
authors: Michael D
authors: MD
authors: Culler
authors: Stefan D
authors: SD
authors: Anker
authors: Jochen
authors: J
authors: Springer
mesh_terms: D000818:Animals; D001823:Body Composition / Q000187:drug effects*; D001835:Body Weight / Q000187:drug effects*; D004195:Disease Models, Animal; D054439:Ghrelin / Q000031:analogs & derivatives*; D006333:Heart Failure / Q000503:physiopathology*; D007260:Infusion Pumps; D007279:Injections, Subcutaneous; D008297:Male; D009203:Myocardial Infarction / Q000503:physiopathology*; D009842:Oligopeptides / Q000008:administration & dosage*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D054439:Ghrelin; D009842:Oligopeptides; C000593860:relamorelin
keywords: Body composition; Chronic heart failure; Ghrelin; Myocardial infarction; Weight gain