Effect of treatment of borderline hypertension on microalbuminuria in non-insulin-dependent diabetes mellitus.
The advantage of treatment for borderline hypertension has been a debate. We studied two of the commonly used antihypertensive drugs, i.e., trichlormethiazide (Fluitran 2 mg/tab) and enalapril (Renitec 5 mg/tab) on urinary albumin excretion in seven NIDDM subjects with borderline hypertension, who had never been treated with antihypertensive drugs before entry into this study. The observation period was 2 months, and the treatment period was 6 months. Trichlormethiazide (1 tab qd) or enalapril (1 tab qd) were randomly assigned for the first 3 months and then patients were switched to the other drug for the following 3 months. During the treatment period, blood pressure, body weight, blood chemistry including renal function tests, and urinary albumin excretion rate were regularly followed up every 1 to 3 months. The results showed that both of the regimens significantly lowered blood pressure and the urinary albumin excretion rate [12.72 (2.56-25.95) micrograms/min at baseline, to 5.11 (3.0-13.73) micrograms/min during trichlormethiazide treatment and 4.96 (1.38-11.14) micrograms/min during enalapril treatment, p less than 0.008]. However, no significant difference was noted between the two drugs. The magnitude of change in the urinary albumin excretion rate did not correlate with the changes in blood pressure. Renal function, glycemic control, and lipid profiles did not change significantly during the treatment period. In conclusion, both trichlormethiazide and enalapril are effective in lowering the urinary albumin excretion rate in NIDDM subjects with borderline hypertension.
Department of Internal Medicine, College of Medicine, National Taiwan University, R.O.C.
L M
LM
Chuang
T S
TS
Jou
H P
HP
Wu
C H
CH
Tseng
T Y
TY
Tai
B J
BJ
Lin
D000368:Aged; D000419:Albuminuria / Q000188:drug therapy*; D001794:Blood Pressure / Q000187:drug effects; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology*; D003928:Diabetic Nephropathies / Q000188:drug therapy; D005260:Female; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged