Tags

Type your tag names separated by a space and hit enter

Lack of effect of captopril on glomerular hyperfiltration in normoalbuminuric normotensive insulin-dependent diabetic patients.
Horm Metab Res. 1997 Oct; 29(10):516-9.HM

Abstract

The aim of the present study was to evaluate the effects of captopril on the glomerular filtration rate (GFR) and urinary albumin excretion rate (UAER) of normoalbuminuric normotensive insulin-dependent diabetes mellitus (IDDM) patients with and without glomerular hyperfiltration. Eleven normoalbuminuric (UAER < 30 micrograms/min) patients (age: 34.3 +/- 4.6 years: diabetes duration: 9.5 +/- 6.4 years) participated in the study. Six patients were considered to be hyperfiltering (GFR > or = 134 ml/min/ 1.73m2). GFR (51Cr-EDTA single injection technique), extracellular volume (ECV; distribution volume of 51Cr-EDTA), UAER (RIA) and metabolic and biochemical parameters were measured at baseline, after 6 weeks on captopril (25 mg p.o. twice daily) and after 6 weeks off captopril. Plasma renin activity (PRA; RIA), plasma aldosterone (RIA) and blood volume (51Cr red cell labeled) were measured at baseline and after 6 weeks on captopril. The baseline clinical and laboratory characteristics of hyperfiltering and normofiltering IDDM patients were similar. GFR did not change during the study (144.1 +/- 28.8; 139.7 +/- 21.8; 132.8 +/- 29.9 ml/min/1.73 m2) either in patients with hyperfiltration (164.6 +/- 20.7; 153.8 +/- 18.3; 148.6 +/- 31.0 ml/min/1.73 m2; n = 6) or without hyperfiltration (119.6 +/- 11.1; 123.2 +/- 11.9; 113.8 +/- 14.4 ml/min/1.73 m2; n = 5). Also, ECV (22.2 +/- 3.6; 21.5 +/- 4.3; 21.5 +/- 3.5 L/1.73 m2), UAER (3.9 [0.4-22.1]; 4.0 [0.2-11.4]; 3.7 [2.0-26.2] micrograms/min), systolic (112 +/- 13; 105 +/- 10; 111 +/- 11 mmHg) and diastolic (76 +/- 12; 72 +/- 9; 73 +/- 12 mmHg) blood pressure did not change. No difference in blood volume (60.8 +/- 10.4; 62.3 +/- 8.4 ml/kg) or plasma aldosterone (10.4 +/- 4.9; 7.7 +/- 3.8 ng/dl) was observed between baseline values and values after captopril use. PRA increased (2.4 [0.4-22.1]; 12.9 [2.2-41.1]ng/ml/h) at the end of 6 weeks on captopril (P = 0.002). Fasting plasma glucose, glycated hemoglobin, fructosamine, plasma cholesterol and potassium, 24 h urinary urea and sodium were similar during the study. These results were unchanged when patients with and without hyperfiltration were analyzed as separate groups. From baseline to the end of 6 weeks on captopril there was no correlation between change in GFR and change in glycated hemoglobin (r = 0.02, P = 0.96), systolic (r = 0.23; P = 0.49) and diastolic (r = -0.32, P = 0.32) blood pressure, urinary urea (r = 0.21; P = 0.53) and UAER (r = -0.16; P = 1.00). In conclusion, captopril has no effect on the GFR and UAER of normoalbuminuric normotensive IDDM patients irrespective of the presence of glomerular hyperfiltration.

Links

Publisher Full Text

Authors+Show Affiliations

de Azevedo MJ
Endocrinology Unit, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, RS, Brazil.
Ramos OL
No affiliation info available
Gross JL
No affiliation info available

MeSH

AdultAlbuminuriaAngiotensin-Converting Enzyme InhibitorsCaptoprilDiabetes Mellitus, Type 1FemaleGlomerular Filtration RateHumansKidney GlomerulusMale

Pub Type(s)

Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

9405980

Citation

de Azevedo, M J., et al. "Lack of Effect of Captopril On Glomerular Hyperfiltration in Normoalbuminuric Normotensive Insulin-dependent Diabetic Patients." Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Metabolisme, vol. 29, no. 10, 1997, pp. 516-9.
de Azevedo MJ, Ramos OL, Gross JL. Lack of effect of captopril on glomerular hyperfiltration in normoalbuminuric normotensive insulin-dependent diabetic patients. Horm Metab Res. 1997;29(10):516-9.
de Azevedo, M. J., Ramos, O. L., & Gross, J. L. (1997). Lack of effect of captopril on glomerular hyperfiltration in normoalbuminuric normotensive insulin-dependent diabetic patients. Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Metabolisme, 29(10), 516-9.
de Azevedo MJ, Ramos OL, Gross JL. Lack of Effect of Captopril On Glomerular Hyperfiltration in Normoalbuminuric Normotensive Insulin-dependent Diabetic Patients. Horm Metab Res. 1997;29(10):516-9. PubMed PMID: 9405980.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lack of effect of captopril on glomerular hyperfiltration in normoalbuminuric normotensive insulin-dependent diabetic patients. AU - de Azevedo,M J, AU - Ramos,O L, AU - Gross,J L, PY - 1997/12/24/pubmed PY - 1997/12/24/medline PY - 1997/12/24/entrez SP - 516 EP - 9 JF - Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme JO - Horm Metab Res VL - 29 IS - 10 N2 - The aim of the present study was to evaluate the effects of captopril on the glomerular filtration rate (GFR) and urinary albumin excretion rate (UAER) of normoalbuminuric normotensive insulin-dependent diabetes mellitus (IDDM) patients with and without glomerular hyperfiltration. Eleven normoalbuminuric (UAER < 30 micrograms/min) patients (age: 34.3 +/- 4.6 years: diabetes duration: 9.5 +/- 6.4 years) participated in the study. Six patients were considered to be hyperfiltering (GFR > or = 134 ml/min/ 1.73m2). GFR (51Cr-EDTA single injection technique), extracellular volume (ECV; distribution volume of 51Cr-EDTA), UAER (RIA) and metabolic and biochemical parameters were measured at baseline, after 6 weeks on captopril (25 mg p.o. twice daily) and after 6 weeks off captopril. Plasma renin activity (PRA; RIA), plasma aldosterone (RIA) and blood volume (51Cr red cell labeled) were measured at baseline and after 6 weeks on captopril. The baseline clinical and laboratory characteristics of hyperfiltering and normofiltering IDDM patients were similar. GFR did not change during the study (144.1 +/- 28.8; 139.7 +/- 21.8; 132.8 +/- 29.9 ml/min/1.73 m2) either in patients with hyperfiltration (164.6 +/- 20.7; 153.8 +/- 18.3; 148.6 +/- 31.0 ml/min/1.73 m2; n = 6) or without hyperfiltration (119.6 +/- 11.1; 123.2 +/- 11.9; 113.8 +/- 14.4 ml/min/1.73 m2; n = 5). Also, ECV (22.2 +/- 3.6; 21.5 +/- 4.3; 21.5 +/- 3.5 L/1.73 m2), UAER (3.9 [0.4-22.1]; 4.0 [0.2-11.4]; 3.7 [2.0-26.2] micrograms/min), systolic (112 +/- 13; 105 +/- 10; 111 +/- 11 mmHg) and diastolic (76 +/- 12; 72 +/- 9; 73 +/- 12 mmHg) blood pressure did not change. No difference in blood volume (60.8 +/- 10.4; 62.3 +/- 8.4 ml/kg) or plasma aldosterone (10.4 +/- 4.9; 7.7 +/- 3.8 ng/dl) was observed between baseline values and values after captopril use. PRA increased (2.4 [0.4-22.1]; 12.9 [2.2-41.1]ng/ml/h) at the end of 6 weeks on captopril (P = 0.002). Fasting plasma glucose, glycated hemoglobin, fructosamine, plasma cholesterol and potassium, 24 h urinary urea and sodium were similar during the study. These results were unchanged when patients with and without hyperfiltration were analyzed as separate groups. From baseline to the end of 6 weeks on captopril there was no correlation between change in GFR and change in glycated hemoglobin (r = 0.02, P = 0.96), systolic (r = 0.23; P = 0.49) and diastolic (r = -0.32, P = 0.32) blood pressure, urinary urea (r = 0.21; P = 0.53) and UAER (r = -0.16; P = 1.00). In conclusion, captopril has no effect on the GFR and UAER of normoalbuminuric normotensive IDDM patients irrespective of the presence of glomerular hyperfiltration. SN - 0018-5043 UR - https://www.unboundmedicine.com/medline/citation/9405980/Lack_of_effect_of_captopril_on_glomerular_hyperfiltration_in_normoalbuminuric_normotensive_insulin_dependent_diabetic_patients_ L2 - http://www.thieme-connect.com/DOI/DOI?10.1055/s-2007-979092 DB - PRIME DP - Unbound Medicine ER -