| The association of inflammatory and fibrinolytic proteins with 5 year change in insulin clearance: the Insulin Resistance Atherosclerosis Study (IRAS). | |
| | |
MedLine Citation:
|
PMID: 23052060 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
AIMS/HYPOTHESIS: Insulin clearance may decline as an early mechanism compensating for deteriorating insulin sensitivity. However, no previous studies have investigated the association between subclinical inflammation or impaired fibrinolysis and insulin clearance. We examined the association between plasminogen activator inhibitor (PAI)-1, C-reactive protein (CRP), TNF-α, leptin and fibrinogen and the progression of metabolic clearance rate of insulin (MCRI) over time. METHODS: We studied 784 non-diabetic white, Hispanic and African-American individuals in the Insulin Resistance Atherosclerosis Study (IRAS). Insulin sensitivity, acute insulin response and MCRI were determined from frequently sampled intravenous glucose tolerance tests at baseline and at 5-year follow-up. Inflammatory and fibrinolytic proteins were measured in fasting plasma at baseline. RESULTS: MCRI had declined significantly by 29% at the 5-year follow-up. We observed a significant association between higher plasma PAI-1 levels and the decline in MCRI in multivariable-adjusted regression models (β = -0.045 [95% CI -0.081, -0.0091]). Higher plasma CRP and leptin levels were associated with a decline in MCRI in unadjusted models, but these associations were non-significant after adjusting for BMI and waist circumference (β = -0.016 [95% CI -0.041, 0.0083] for CRP; β = -0.044 [95% CI -0.10, 0.011] for leptin). A higher plasma TNF-α concentration was associated with a decline in MCRI in unadjusted (β = -0.071 [95% CI -0.14, -0.00087]) but not in multivariable-adjusted (β = -0.056 [95% CI -0.13, 0.017]) models. Plasma fibrinogen level was not associated with the change in MCRI. CONCLUSIONS/INTERPRETATION: We identified that higher plasma PAI-1 (but not CRP, TNF-α, leptin or fibrinogen) levels independently predicted the progressive decline of insulin clearance in the multiethnic cohort of the IRAS. |
| | |
Authors:
|
C C Lee; C Lorenzo; S M Haffner; L E Wagenknecht; A Festa; M O Goodarzi; D Stefanovski; N C Olson; J M Norris; M J Rewers; A J Hanley |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-10-10 |
Journal Detail:
|
Title: Diabetologia Volume: - ISSN: 1432-0428 ISO Abbreviation: Diabetologia Publication Date: 2012 Oct |
Date Detail:
|
Created Date: 2012-10-11 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0006777 Medline TA: Diabetologia Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Nutritional Sciences, FitzGerald Building, University of Toronto, 150 College St, Toronto, ON, Canada, M5S 3E2. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Adipocyte fatty acid binding protein: a novel adipokine involved in the pathogenesis of metabolic an...
Next Document: Diabetic retinopathy at diagnosis of type 2 diabetes in the UK: a database analysis.