| Importance of glycemic control on the course of glomerular filtration rate in type 2 diabetes with hypertension and microalbuminuria under tight blood pressure control. | |
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MedLine Citation:
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PMID: 18060749 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND AIMS: To evaluate the role of glycemic control on the evolution of glomerular filtration rate (GFR) in type 2 diabetes (T2DM) with mild-moderate hypertension under tight blood pressure control, and to address the current controversy whether diabetic nephropathy worsens, independently of blood pressure, proportionally to HbA1c at any physiological level or only when HbA1c is above a 7.5-8% threshold. METHODS AND RESULTS: T2DM (N=127) during early stage diabetic nephropathy characterized by microalbuminuria were followed during a 2 year multicenter study. Individual GFR profiles were accurately obtained by (51)Cr - EDTA bolus injections and analyzed with linear statistical mixed-effects models. GFR at baseline was significantly negatively correlated with age and plasma creatinine concentration (P<or=0.0001), and GFR declined, on average, by 4.0 ml/min 1.73 m(2)/year (P=0.001). A significant correlation was found between individual GFR decline rate and average systolic (SBP) and diastolic (DBP) blood pressures (-0.254 (0.736) ml/min 1.73 m(2)/year per mmHg increase in SBP (DBP), P=0.041 (0.014)) and % of glycated hemoglobin (HbA1c) (-1.78 ml/min 1.73 m(2)/year per % increase in HbA1c, P=0.048). This implies a 44% increase/reduction in GFR decline rate for 1% HbA1c increase/reduction around 7.0% (i.e. 5.79 and 2.24 ml/min 1.73 m(2)/year at 8% and 6% HbA1c, respectively). CONCLUSIONS: This study demonstrates that, despite tight blood pressure control, an accurate glycemic control till very low patterns of HbA1c (from 10-11% to 5-6%) is needed to delay the progression of GFR decay in Mediterranean T2DM in south Europe with microalbuminuria. |
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Authors:
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Karl Thomaseth; Giovanni Pacini; Patrizia Morelli; Giancarlo Tonolo; Romano Nosadini |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-12-03 |
Journal Detail:
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Title: Nutrition, metabolism, and cardiovascular diseases : NMCD Volume: 18 ISSN: 1590-3729 ISO Abbreviation: Nutr Metab Cardiovasc Dis Publication Date: 2008 Nov |
Date Detail:
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Created Date: 2008-10-28 Completed Date: 2009-01-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9111474 Medline TA: Nutr Metab Cardiovasc Dis Country: Germany |
Other Details:
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Languages: eng Pagination: 632-8 Citation Subset: IM |
Affiliation:
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National Research Council, Institute of Biomedical Engineering, CNR, Corso Stati Uniti 4, 35127 Padova, Italy. karl.thomaseth@isib.cnr.it |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Albuminuria / physiopathology* Blood Glucose / analysis Diabetes Mellitus, Type 2 / blood, physiopathology*, therapy Female Glomerular Filtration Rate* Hemoglobin A, Glycosylated / analysis Humans Hypertension / drug therapy, physiopathology* Male Middle Aged |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 0/Hemoglobin A, Glycosylated; 0/hemoglobin A1c protein, human |
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