Document Detail


Autonomic neuropathy predisposes to rosiglitazone-induced vascular leakage in insulin-treated patients with type 2 diabetes: a randomised, controlled trial on thiazolidinedione-induced vascular leakage.
MedLine Citation:
PMID:  20499046     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS/HYPOTHESIS: The mechanism of fluid-related complications caused by thiazolidinedione derivatives is unclear. One potential mechanism is thiazolidinedione-induced arterial vasodilatation, which results in vascular leakage and a fall in blood pressure, normally counterbalanced by sympathetic activation and subsequent renal fluid retention. We hypothesised that thiazolidinedione-induced vascular leakage will be particularly prominent in patients with autonomic neuropathy. METHODS: We conducted a randomised, double-blind, placebo-controlled, parallel study in 40 patients with type 2 diabetes on insulin treatment recruited from a university medical centre. The randomisation was performed by a central office using a randomisation schedule. Both treatment groups, placebo (n = 21) and rosiglitazone (n = 19), were stratified for sex and level of autonomic neuropathy as assessed by Ewing score (<2.5 or >or=2.5). We investigated the effects of 16 weeks of treatment with rosiglitazone 4 mg twice daily on vascular leakage (transcapillary escape rate of albumin, TERalb), body weight, extracellular volume and plasma volume. RESULTS: Thirty-nine patients were included in the analysis. In patients with high Ewing scores (n = 16), rosiglitazone increased TERalb significantly (DeltaTERalb: rosiglitazone +2.43 +/- 0.45%/h, placebo -0.11 +/- 0.15%/h, p = 0.002), while rosiglitazone had no effect in the patients with low Ewing scores (n = 23). Rosiglitazone-induced increases in TERalb and Ewing score at baseline were correlated (r = 0.65, p = 0.02). There was no correlation between Ewing score and rosiglitazone-induced changes in fluid variables. One subject was withdrawn from the study because of atrial fibrillation. CONCLUSIONS/INTERPRETATION: Rosiglitazone may increase vascular leakage in insulin-treated patients with type 2 diabetes with autonomic neuropathy. Autonomic neuropathy did not exaggerate rosiglitazone-induced fluid retention. Therefore, autonomic neuropathy should be considered as a risk factor for thiazolidinedione-induced oedema, not for thiazolidinedione-induced fluid retention. TRIAL REGISTRATION: ClinicalTrials.gov NCT00422955. FUNDING: GlaxoSmithKline.
Authors:
A J Rennings; P Smits; M W Stewart; C J Tack
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2010-05-25
Journal Detail:
Title:  Diabetologia     Volume:  53     ISSN:  1432-0428     ISO Abbreviation:  Diabetologia     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-07-28     Completed Date:  2010-11-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0006777     Medline TA:  Diabetologia     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1856-66     Citation Subset:  IM    
Affiliation:
Department of Pharmacology-Toxicology 149, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands. A.Rennings@pharmtox.umcn.nl
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Capillary Permeability / drug effects*
Diabetes Mellitus, Type 2 / drug therapy*
Diabetic Neuropathies / complications*
Double-Blind Method
Female
Humans
Hypoglycemic Agents / adverse effects*,  therapeutic use*
Insulin / therapeutic use*
Male
Middle Aged
Thiazolidinediones / adverse effects*,  therapeutic use
Vasodilation / drug effects
Chemical
Reg. No./Substance:
0/Hypoglycemic Agents; 0/Thiazolidinediones; 11061-68-0/Insulin; 122320-73-4/rosiglitazone
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