At least one hundred hypertensive patients with renal disease (creatinine 1.6-7 micrograms/dl) will enter the protocol """"""""Plasma Norepinephrine as a Renal Risk Factor"""""""". They will be randomly distributed into two groups with equal stratification of risk factors for progression of renal disease. One half of the patients will have plasma norepinephrine suppressed by clonidine and the other one-half will be treated with agents that have either no effect on plasma norepinephrine or will raise plasma norepinephrine. The goal is to determine if inhibition of norepinephrine release decreases the rate of progression of renal disease in these patients. In the second project we will complete the titration of prazosin and initiate the titration with captopril in minoxidil-treated patients. The immediate goal of this project is to learn to predictably lower blood pressure of severely hypertensive patients to predetermined levels. On the basis of this information, by July 1981 we expect to have completed development of a protocol which will permit a predictable reduction of diastolic blood pressure, without disabling side effects, to the range of 65-78 for one group and to 79-90 with another group of intermediate-severely hypertensve patients with renal disease. The ultimate goal of this project is answer the question """"""""to what extent should blood pressure be lowered"""""""" particularly in patients with tragic risk of renal failure.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Research Project (R01)
Project #
5R01HL023670-08
Application #
3337358
Study Section
Pharmacology A Study Section (PHRA)
Project Start
1979-04-01
Project End
1988-03-31
Budget Start
1987-04-01
Budget End
1988-03-31
Support Year
8
Fiscal Year
1987
Total Cost
Indirect Cost
Name
University of Texas Sw Medical Center Dallas
Department
Type
Overall Medical
DUNS #
City
Dallas
State
TX
Country
United States
Zip Code
75390
Pettinger, William A (2017) Hypertension's 3 Dilemmas and 3 Solutions: Pharmacology of the Kidney in Hypertension. J Cardiovasc Pharmacol 69:129-139
Toto, R D; Mitchell, H C; Smith, R D et al. (1995) ""Strict"" blood pressure control and progression of renal disease in hypertensive nephrosclerosis. Kidney Int 48:851-9
Lee, H C; Mitchell, H C; Van Dreal, P et al. (1993) Hyperfiltration and conservation of renal function in hypertensive nephrosclerosis patients. Am J Kidney Dis 21:68-74
Pettinger, W A; Mitchell, H C; Lee, H C et al. (1989) Pseudo renal artery stenosis (PRAS) syndrome. Am J Hypertens 2:349-51
Pettinger, W A; Lee, H C; Reisch, J et al. (1989) Long-term improvement in renal function after short-term strict blood pressure control in hypertensive nephrosclerosis. Hypertension 13:766-72