Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent

Background. Serum ferritin predicts the onset of diabetes; however, this relationship is not clear amongst South Asians, a population susceptible to glucose intolerance and anaemia. Objective. This study tests whether ferritin levels reflect glucose tolerance in South Asians, independent of lifestyl...

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Main Authors: Elizabeth A. Hughes, Jeetesh V. Patel, Zosia Bredow, Paramjit S. Gill, Julia Chackathayil, Elif S. Agaoglu, Paul Flinders, Rebecca Mirrielees
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2015/924387
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author Elizabeth A. Hughes
Jeetesh V. Patel
Zosia Bredow
Paramjit S. Gill
Julia Chackathayil
Elif S. Agaoglu
Paul Flinders
Rebecca Mirrielees
author_facet Elizabeth A. Hughes
Jeetesh V. Patel
Zosia Bredow
Paramjit S. Gill
Julia Chackathayil
Elif S. Agaoglu
Paul Flinders
Rebecca Mirrielees
author_sort Elizabeth A. Hughes
collection DOAJ
description Background. Serum ferritin predicts the onset of diabetes; however, this relationship is not clear amongst South Asians, a population susceptible to glucose intolerance and anaemia. Objective. This study tests whether ferritin levels reflect glucose tolerance in South Asians, independent of lifestyle exposures associated with Indian or British residence. Methods. We randomly sampled 227 Gujaratis in Britain (49.8 (14.4) years, 50% men) and 277 contemporaries living in Gujarati villages (47.6 (11.8) years, 41% men). Both groups underwent a 75 g oral-glucose-tolerance test. We evaluated lifestyle parameters with standardised questionnaires and conducted comprehensive clinical and lab measurements. Results. Across sites, the age-adjusted prevalence of diabetes was 9.8%. Serum ferritin was higher amongst diabetics (P=0.005), irrespective of site, gender, and central obesity (P≤0.02), and was associated with fasting and postchallenge glucose, anthropometry, blood pressure, triglycerides, and nonesterified fatty acids (P<0.001). Diabetes was less in those with low ferritin (<20 mg/mL), P<0.008, and risk estimate = 0.35 (95% CI 0.15–0.81), as were blood pressure and metabolic risk factors. On multivariate analysis, diabetes was independently associated with ferritin (P=0.001) and age (P<0.001). Conclusion. Ferritin levels are positively associated with glucose intolerance in our test groups, independent of gender and Indian or UK lifestyle factors.
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spelling doaj-art-1e24cac855a145d383695e9c4bebf4312025-08-20T02:03:46ZengWileyInternational Journal of Endocrinology1687-83371687-83452015-01-01201510.1155/2015/924387924387Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian SubcontinentElizabeth A. Hughes0Jeetesh V. Patel1Zosia Bredow2Paramjit S. Gill3Julia Chackathayil4Elif S. Agaoglu5Paul Flinders6Rebecca Mirrielees7University of Birmingham Centre for Cardiovascular Sciences, Sandwell and West Birmingham Hospitals NHS Trust, West Midlands B18 7QH, UKUniversity of Birmingham Centre for Cardiovascular Sciences, Sandwell and West Birmingham Hospitals NHS Trust, West Midlands B18 7QH, UKMedical School, University of Nottingham, Nottingham NG7 2UH, UKPrimary Care Clinical Sciences, University of Birmingham, West Midlands B15 2TT, UKPrimary Care Clinical Sciences, University of Birmingham, West Midlands B15 2TT, UKMedical School, University of Nottingham, Nottingham NG7 2UH, UKMedical School, University of Nottingham, Nottingham NG7 2UH, UKMedical School, University of Nottingham, Nottingham NG7 2UH, UKBackground. Serum ferritin predicts the onset of diabetes; however, this relationship is not clear amongst South Asians, a population susceptible to glucose intolerance and anaemia. Objective. This study tests whether ferritin levels reflect glucose tolerance in South Asians, independent of lifestyle exposures associated with Indian or British residence. Methods. We randomly sampled 227 Gujaratis in Britain (49.8 (14.4) years, 50% men) and 277 contemporaries living in Gujarati villages (47.6 (11.8) years, 41% men). Both groups underwent a 75 g oral-glucose-tolerance test. We evaluated lifestyle parameters with standardised questionnaires and conducted comprehensive clinical and lab measurements. Results. Across sites, the age-adjusted prevalence of diabetes was 9.8%. Serum ferritin was higher amongst diabetics (P=0.005), irrespective of site, gender, and central obesity (P≤0.02), and was associated with fasting and postchallenge glucose, anthropometry, blood pressure, triglycerides, and nonesterified fatty acids (P<0.001). Diabetes was less in those with low ferritin (<20 mg/mL), P<0.008, and risk estimate = 0.35 (95% CI 0.15–0.81), as were blood pressure and metabolic risk factors. On multivariate analysis, diabetes was independently associated with ferritin (P=0.001) and age (P<0.001). Conclusion. Ferritin levels are positively associated with glucose intolerance in our test groups, independent of gender and Indian or UK lifestyle factors.http://dx.doi.org/10.1155/2015/924387
spellingShingle Elizabeth A. Hughes
Jeetesh V. Patel
Zosia Bredow
Paramjit S. Gill
Julia Chackathayil
Elif S. Agaoglu
Paul Flinders
Rebecca Mirrielees
Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
International Journal of Endocrinology
title Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
title_full Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
title_fullStr Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
title_full_unstemmed Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
title_short Ferritin as a Risk Factor for Glucose Intolerance amongst Men and Women Originating from the Indian Subcontinent
title_sort ferritin as a risk factor for glucose intolerance amongst men and women originating from the indian subcontinent
url http://dx.doi.org/10.1155/2015/924387
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