title: Fixed-dose telmisartan/hydrochlorothiazide in comparison with losartan/hydrochlorothiazide in decreasing serum hepatocyte growth factor and improving endothelial dysfunction in hypertensive patients.
abstract: Combined treatment with an angiotensin II receptor blocker and hydrochlorothiazide (HCT) is advocated to control hypertension (HT). Hepatocyte growth factor (HGF) may be a new marker to evaluate endothelial dysfunction (ED), which is a potential target in treating HT. The aim of the present study was to compare the effects of Telmisartan/HCT with Losartan/HCT on serum HGF and ED in hypertensive patients. Hypertensive patients were randomly divided into a Telmisartan/HCT (group T) or Losartan/HCT group (group L) and received one tablet of either drug per day for 8 weeks. Serum HGF, nitric oxide (NO), plasma von Willebrand factor (vWF), and endothelin (ET) were measured before treatment and after 8 weeks of treatment. Twenty healthy subjects were selected as controls (control group). HGF, vWF, ET, and the ET/NO ratio were higher, and NO was lower in hypertensive patients than those in the control group (all P < 0.01). After treatment for 8 weeks, HGF, vWF and ET decreased, and NO increased significantly in both groups (all P < 0.01). The reductions in BP and HGF and increase in NO (DeltaNO) were not significantly different between the two groups (all P > 0.05), but the reductions in vWF and ET (DeltaET) and DeltaET/DeltaNO ratio were more obvious in group T than in group L (all P < 0.01). There was no significant correlation between the changes in most of the measured parameters and the extent of BP reduction in either group. Both Telmisartan/HCT and Losartan/HCT could decrease serum HGF and improve ED, which was independent of the antihypertensive effects. However, the improvement in ED may be superior with Telmisartan/HCT than Losartan/HCT when the BP-lowering effects are the same.
authors: Institute of Clinical Pharmacology, Anhui Medical University, Ministry of Education and Anhui Province, Hefei, PR China.
authors: Ze-Ping
authors: ZP
authors: Hu
authors: Bang-Ning
authors: BN
authors: Wang
authors: Hai-Yan
authors: HY
authors: Qian
authors: Qing
authors: Q
authors: Zhou
authors: Wei
authors: W
authors: Wei
authors: Yuan
authors: Y
authors: Wang
mesh_terms: D000368:Aged; D047228:Angiotensin II Type 1 Receptor Blockers / Q000008:administration & dosage*; D000959:Antihypertensive Agents / Q000008:administration & dosage*; D001562:Benzimidazoles / Q000008:administration & dosage*; D001565:Benzoates / Q000008:administration & dosage*; D015415:Biomarkers / Q000097:blood; D015331:Cohort Studies; D004338:Drug Combinations; D016232:Endothelins / Q000097:blood; D004730:Endothelium, Vascular / Q000503:physiopathology*; D005260:Female; D017228:Hepatocyte Growth Factor / Q000097:blood*; D006801:Humans; D006852:Hydrochlorothiazide / Q000008:administration & dosage*; D006973:Hypertension / Q000097:blood / Q000188:drug therapy* / Q000503:physiopathology; D019808:Losartan / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D009569:Nitric Oxide / Q000097:blood; D000077333:Telmisartan
chemical_list: D047228:Angiotensin II Type 1 Receptor Blockers; D000959:Antihypertensive Agents; D001562:Benzimidazoles; D001565:Benzoates; D015415:Biomarkers; D004338:Drug Combinations; D016232:Endothelins; C436283:telmisartan, hydrochlorothiazide drug combination; D006852:Hydrochlorothiazide; D009569:Nitric Oxide; D017228:Hepatocyte Growth Factor; D019808:Losartan; D000077333:Telmisartan