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Epidemiology of coronary heart disease in Asians in Britain

McKeigue, PM; (1990) Epidemiology of coronary heart disease in Asians in Britain. Doctoral thesis, University of London. Green open access

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Abstract

In countries where people of South Asian origin have settled, unexpectedly high coronary heart disease rates have been recorded in South Asian men and women compared with other ethnic groups. In England high CHD mortality is shared by Gujarati Hindus, Punjabi Sikhs and Muslims from Pakistan and Bangladesh. The high CHD rates in these populations are unexplained by levels of smoking, blood pressure, plasma cholesterol or dietary fat intake. To test whether disturbances of haemostatic activity, lipoprotein metabolism or carbohydrate metabolism might underlie the high CHD mortality in South Asians, a population study in east London was undertaken. The results confirmed that the high CHD rates in South Asians compared with the native British population cannot be explained by differences in the distributions of blood pressure or plasma cholesterol. The hypothesis of a disturbance of haemostatic activity was not supported. A pattern of low plasma HDL cholesterol and high triglyceride levels, high serum insulin levels after a glucose load and high prevalence of non-insulin-dependent diabetes was identified in CD Bangladeshis. On the basis of these findings and a review of other recent work it is suggested that: (i) insulin resistance underlies these disturbances of lipoprotein and carbohydrate metabolism in Bangladeshis; (ii) this tendency to insulin resistance is a general pattern in South Asian populations overseas; and (iii) it is a possible underlying mechanism for the high rates of both CHD and diabetes in these populations. The planning of a large study to test this is described. Preliminary results confirm that a syndrome of metabolic disturbances related to insulin resistance, first identified in Bangladeshis, is present also in Gujaratis and Punjabis. This is associated with a striking tendency to central obesity in South Asians. These findings point to the aetiological role of insulin resistance in CHD and suggest possible strategies for prevention in South Asian communities.

Type:Thesis (Doctoral)
Title:Epidemiology of coronary heart disease in Asians in Britain
Open access status:An open access version is available from UCL Discovery
Language:English
Additional information:Thesis digitised by British Library EThOS. Some images have been removed due to third party copyright.
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Medical Sciences > UCL Medical School

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