Document Detail


Endothelin A antagonist LU-135252 and trandolapril in the treatment of the Cohen-Rosenthal diabetic hypertensive rat.
MedLine Citation:
PMID:  16036489     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Hypertension and non-insulin-dependent diabetes mellitus (NIDDM) often occur simultaneously and the combination requires vigorous control of hypertension. This can generally be achieved by a combination of antihypertensive drugs. The present study examines the antihypertensive and possible hypoglycemic effects of combined therapy with endothelin A (ETA) receptor antagonist LU-135252 and angiotensin-converting enzyme (ACE) inhibitor trandolapril in male Cohen-Rosenthal Diabetic Hypertensive (CRDH) rats. METHODS: Rats were divided into four groups as follows: group I served as control; group II--LU-135252 30 mg/kg/day; group III--trandolapril 0.1 mg/kg/day and group IV--both LU-135252 30 mg/kg/day and trandolapril 0.1 mg/kg/day. Systolic blood pressure (SBP) and plasma glucose levels were evaluated at the beginning of the experiment and after 2, 4 and 6 weeks. RESULTS:SBP decreased significantly in all treated groups after 2, 4 and 6 weeks of treatment compared to baseline. Maximum decrease was in group IV (combination) from 174.8+/-3.7 to 136.1+/-2.4 mmHg (22%) (p<0.0001); in group III (trandolapril) from 165.8+/-2.7 to 137.5+/-2.9 mmHg (17%) (p=0.0002); and in group II (LU-135252) and from 169.1+/-3.1 to 147.8+/-2.5 mmHg (12%) (p=0.0004). Glucose levels in plasma decreased significantly after 6 weeks of treatment. Maximum decrease was in group IV: from 501.0+/-42.8 to 178.6+/-7.3 mg/dl (62%) (p<0.0001); in group III from 428.2+/-47.7 to 146.8+/-5.6 mg/dl (63%) (p<0.0001); and in group II from 491.2+/-39.3 to 272.2+/-28.3 mg/dl (42%) (p=0.0002). CONCLUSION: The SBP decrease was additive when both drugs were given together. Thus, combination of ETA antagonist and ACE inhibitor appears to offer a rational fixed-dose antihypertensive therapy, which is superior to that of either drug alone. The decrease in glucose level, which was the least impressive while on LU-135252 alone, was more prominent during combination after 2 weeks, although without further decrease.
Authors:
Cipy Hofman; Efraim Gabai; Edna Peleg; Klaus Munter; Talma Rosenthal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Blood pressure     Volume:  14     ISSN:  0803-7051     ISO Abbreviation:  Blood Press.     Publication Date:  2005  
Date Detail:
Created Date:  2005-07-22     Completed Date:  2005-08-12     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  9301454     Medline TA:  Blood Press     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  114-9     Citation Subset:  IM    
Affiliation:
The Hypertension Unit, Sackler Faculty of Medecine, Tel Aviv University, Tel Aviv, Israel.
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MeSH Terms
Descriptor/Qualifier:
Angiotensin-Converting Enzyme Inhibitors / therapeutic use*
Animals
Antihypertensive Agents / therapeutic use*
Blood Glucose / metabolism
Blood Pressure / drug effects
Diabetes Complications / drug therapy*,  genetics*
Drug Combinations
Hypertension / drug therapy*,  genetics*
Indoles / therapeutic use*
Male
Phenylpropionates / therapeutic use*
Pyrimidines / therapeutic use*
Rats
Rats, Inbred SHR
Receptor, Endothelin A / antagonists & inhibitors*
Sucrose / pharmacology
Chemical
Reg. No./Substance:
0/Angiotensin-Converting Enzyme Inhibitors; 0/Antihypertensive Agents; 0/Blood Glucose; 0/Drug Combinations; 0/Indoles; 0/LU 135252; 0/Phenylpropionates; 0/Pyrimidines; 0/Receptor, Endothelin A; 57-50-1/Sucrose; 87679-37-6/trandolapril

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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