title: Cilazapril increases plasma ghrelin concentration in obese patients with arterial hypertension.
abstract: BACKGROUND
  Ghrelin is a polypeptide hormone secreted mainly by the stomach cells, stimulating food intake and growth hormone release. Decreased plasma ghrelin concentration was found in obese subjects. Clinical and experimental data suggest that ghrelin also exerts a blood pressure lowering property. The influence of antihypertensive medication on plasma ghrelin concentration has not been studied, yet.
  
  
  METHODS
  Plasma ghrelin concentration was estimated in 52 hypertensive obese (HA + O), 14 normotensive obese (O), and 15 lean healthy subjects in the fasting state, and after ingestion of a standard meal. HA + O patients were randomly allocated into 4 groups treated alternatively with: cilazapril, bisoprolol, amlodipine, or indapamide. After 6 weeks of antihypertensive monotherapy, the assessments were repeated.
  
  
  RESULTS
  Similar fasting [HA + O - 780 (676-960) pg/ml; O - 751 (619-899) pg/ml] and postprandial plasma ghrelin concentrations were found in hypertensive and normotensive obese subjects. Plasma ghrelin concentrations in lean healthy subjects were significantly higher (987 (765-1366) pg/ml) in comparison to O and HA + O. Treatment with cilazapril was followed by a 28.0% increase of plasma ghrelin concentration (p = 0.04), while with bisoprolol, a 18.9% decrease (p = 0.01). No significant changes of ghrelinaemia were observed in HA + O treated with amlodipine or indapamide. No significant correlation between blood pressure and plasma ghrelin concentration before the therapy and their changes after 6 weeks of medication were found.
  
  
  CONCLUSIONS
  1. Our data do not support the major role of ghrelin in blood pressure regulation in obesity. 2. An increase of plasma ghrelin concentration after treatment with cilazapril was observed. (Pol J Endocrinol 2010; 61 (1): 21-27).
authors.affiliation: Department of Nephrology, Endocrinology, and Metabolic Diseases Medical University of Silesia, Katowice, Poland
authors.forename: Aleksander
authors.initials: A
authors.lastname: Skoczylas
authors.forename: Marcin
authors.initials: M
authors.lastname: Adamczak
authors.forename: Jerzy
authors.initials: J
authors.lastname: Chudek
authors.forename: Andrzej
authors.initials: A
authors.lastname: Wiecek
mesh_terms: D000328:Adult; D000959:Antihypertensive Agents / Q000494:pharmacology*; D017315:Cilazapril / Q000494:pharmacology*; D005260:Female; D054439:Ghrelin / Q000097:blood*; D006801:Humans; D006973:Hypertension / Q000097:blood* / Q000188:drug therapy* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000097:blood* / Q000150:complications*; D011446:Prospective Studies; D012044:Regression Analysis
chemical_list: D000959:Antihypertensive Agents; D054439:Ghrelin; D017315:Cilazapril