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Query: UMLS:C0311277 (abdominal obesity)
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PURPOSE OF THE STUDY: The purpose of this study is to describe the prevalence of coronary artery disease (CAD) and provide a review of the risk factors associated with CAD in Asian Indians. SEARCH METHODS USED: The authors extensively reviewed numerous British and international studies and the more limited number of studies in India and the US. SUMMARY OF IMPORTANT FINDINGS: Asian Indians have one of the highest rates of CAD. Conventional risk factors such as high blood pressure, high serum total cholesterol level, cigarette smoking, high fat diet, and obesity consistently fail to fully explain these high rates. There appears to be a strong role of insulin resistance and abdominal obesity, both of which have a high prevalence in Asian Indians. Various dyslipidemic disorders in Asian Indians such as low levels of HDL cholesterol, elevation of triglyceride, elevation of LDL cholesterol and elevation of lipoprotein (a) may also have a role. CONCLUSIONS: We hypothesize that against a background of higher susceptibility to CAD among Asian Indians, as characterized by insulin resistance, abdominal obesity and dyslipidemic disorders, conventional risk factors for CAD are also important. A genetic predisposition to CAD is suggested by high levels of lipoprotein (a) in Asian Indians. This would suggest that more aggressive identification and modulation of all known risk factors are necessary among Asian Indians along with a compelling need for further epidemiological studies in this population. RELEVANCE TO ASIAN PACIFIC ISLANDER AMERICAN POPULATIONS: The marked differences in the rates of CAD among Asian Indians, compared with Chinese, Japanese, Filipino, other Asians and Whites are discussed. KEY WORDS: Asian Indians, coronary artery disease, epidemiology, disease prevalence, risk factors, insulin resistance, dyslipidemic disorders, triglycedide, high density lipoprotein; lipoprotein (a)
Asian Am Pac Isl J Health 1993
PMID:Coronary Artery Disease in Asian Indians: Prevalence and Risk Factors. 1156 49

The association between abdominal obesity and an increased risk of cardiovascular disease (CVD) is now well recognized. Both problems are becoming more prevalent within the Asia-Pacific region, but there are substantial differences within and between countries. The strength of the temporal relationship between obesity and CVD in the region has led to the suggestion that obesity is the driving force behind the continuing epidemic of CVD. This raises the question as to whether there are any special aspects to the Asia-Pacific epidemic of obesity and resultant problems as a result of genetic or developmental factors. It is clear that the experience of central obesity and its cardiovascular consequences in western society cannot be directly transposed to all countries in the region. Issues such as smoking, alcohol use and inactivity may carry different implications. The Asia-Pacific region has started from low baseline prevalence of both obesity and CVD. but this implies that the potential for major problems in the future is particularly severe.
Asia Pac J Clin Nutr 2001
PMID:Cardiovascular risk in the Asia-Pacific region from a nutrition and metabolic point of view: visceral obesity. 1171 Mar 62

The level of obesity within the Pacific Islands is extremely high and so is the prevalence of weight-related morbidity and mortality. In contrast, the level of obesity, as defined by the standard WHO classification, remains relatively low in most Asian countries, yet rates of obesity-related disease, such as diabetes and cardiovascular disease are increasing rapidly. Many Asian races appear to be susceptible to the development of excessive abdominal fatness, even at low levels of body mass index (BMI). In addition, the health consequences of weight gain appear to occur at much lower levels of BMI and are more intense than in those of European origin. The exact reasons for these ethnic variations in the development of coronary heart disease (CHD) remain unclear. It is likely that genetic differences contribute to this variation in CHD risk, but different dietary and physical activity patterns may also play a role. The advent of modernisation has resulted in marked changes in the level of physical activity and the food supply available throughout the Asia-Pacific region. There has been a shift towards higher intakes of fats (particularly animal fats and vegetable oils) and sugars. Urbanisation and occupational restructuring have reduced daily physical activity levels. As a result, the population mean BMI and consequent illness is increasing in many countries within the region. Recent studies have shown that infants who were undernourished in utero and then born small have a greater risk of developing abdominal obesity and related morbidity as adults. As undernutrition coexists with overnutrition throughout the Asia-Pacific, focusing efforts to improve nutrition during pregnancy will need to be combined with programs to prevent weight gain in adults if CHD and other chronic diseases are to be effectively tackled in the region.
Asia Pac J Clin Nutr 2001
PMID:Cardiovascular risk in the Asia-Pacific region from a nutrition and metabolic point of view: abdominal obesity. 1171 Mar 63

In this paper, the possible reasons for the prevalence of hypertension in the Asia-Pacific region are examined, along with its likely dietary, nutritional and sociocultural causes. This brief survey indicates the need for more comprehensive blood pressure monitoring and surveillance throughout the region. Findings from research conducted in the region and elsewhere suggest that a variety of aetiological factors predict the occurrence of hypertension, most of which are similar to those observed in western populations. However, several lines of research suggest that obesity, abdominal obesity and a number of dietary constituents, in addition to salt. may play relatively greater roles than in western populations. It is argued that hypertension may be prevented via a combination of individual, community and governmental approaches which promote social capital, environmentally sustainable food production and the public health.
Asia Pac J Clin Nutr 2001
PMID:Diet and hypertension in the Asia-Pacific region: a brief review. 1171 Mar 65

The relationship of body mass index (BMI), conicity index (CI) and waist circumference to four coronary heart disease (CHD) risk factors (systolic and diastolic blood pressures, total cholesterol and high-density lipoprotein (HDL) cholesterol levels) was examined in urban (n = 110) and rural (n = 102) men aged > or = 20 years, drawn from the 'Reddy' population of Southern Andhra Pradesh, India. Using ANCOVA we found significant difference (< 0.01) for systolic blood pressure, total cholesterol and HDL cholesterol between the urban and rural samples. The Pearson's correlation coefficients suggest that BMI and waist circumference had significant relationships with most of the risk factors in both the populations. The CI did not significantly influence any of the risk factors in the urban population; however, in the rural population, CI did show a significant positive relationship with both of the blood pressures and with TC. Even after controlling for age, smoking and physical activity (partial correlations), the relations remained constant. In multiple linear regression, BMI showed significant positive association with systolic and diastolic blood pressures (<0.01) and HDL cholesterol (<0.05) in the rural population only. However, the Cl showed a significant association with HDL cholesterol, and waist circumference with total cholesterol and HDL cholesterol in the rural population. The results of the present study revealed that BMI and waist circumference had a greater influence on the CHD risk factors, and that the influence was more conspicuous in the rural sample. Comparing the association of abdominal obesity measures (CI and waist circumference) with CHD risk factors, waist circumference better correlated with most of the risk factors. Hence the present study suggests that BMI and waist circumference are better indicators of CHD risk factors. However, the importance of Cl has to be further studied in South Asian populations.
Asia Pac J Clin Nutr 2002
PMID:Association of overall and abdominal obesity with coronary heart disease risk factors: comparison between urban and rural Indian men. 1189 Jun 41

Diabetes mellitus is now a serious and increasing problem in Asian countries, where dietary patterns have shifted toward Westernized foods and people are becoming more sedentary. In order to elucidate the relationship of dietary habits to the development of diabetic risk factors, the dietary patterns of 200 Fijian, 171 Japanese and 181 Vietnamese women of 30-39 years of age were investigated using 3 day-24 h recall or dietary records. Anthropometric measurements and glycosuria tests were also conducted. The dietary trends of Fijians and Japanese have changed drastically in the past 50 years, while Vietnamese have been minimally influenced by Western dietary habits. The mean 24 h dietary intake showed that Fijians had the highest energy intake. Energy intake from fat was only 13% for Vietnamese, but over 30% for Japanese and Fijians. Percentage of body fat was higher in Vietnamese than in Japanese, though there were no significant differences in body mass index (BMI). In the overweight and obese women, Vietnamese had higher abdominal obesity than Japanese. The prevalence of obesity (BMI > or = 30 kg/m2) was 63.0% for Fijians, 1.8% for Japanese and 1.1% for Vietnamese. Glycosuria testing yielded the most positive cases among Fijians. Dietary transition and dietary excess appear to be potential risk factors for diabetes in Fijian women.
Asia Pac J Clin Nutr 2002
PMID:Dietary patterns and risk factors for type 2 diabetes mellitus in Fijian, Japanese and Vietnamese populations. 1189 Jun 44

Ethnic groups in affluent environments experience higher rates of metabolic diseases than their native counterparts. Our objective was to determine the prevalence of metabolic risk factors in Ghanaians in Sydney, and to investigate the relationship with dietary and lifestyle factors. Cross-sectional design with anthropometry, blood pressure, plasma lipids, glucose and insulin concentrations were measured on two occasions on each subject. Dietary information was obtained by three 24-h dietary recalls. Adults (45 male, 35 female) were recruited from a local association in Sydney, Australia. Overweight was observed in a large proportion of subjects (71% and 66% of men and women, respectively), with 18% of men and 26% of women classified as obese. Abdominal overweight was seen in 63% and 74% of men and women, respectively. Abdominal obesity was seen in 20% of men and 49% of women. Hypertension was detected in 40% of men and 17% of women, 16% of men and 6% of women were diagnosed with definite hypertension. Seventy-one per cent of men and 29% of women were classified as hypercholesterolaemic and 67% of men and 23% of women had elevated low-density lipoprotein cholesterol. In men, low high-density lipoprotein cholesterol and hypertriacylglycerolaemia affected 18% and 13%, respectively. Fasting hyperinsulinaemia was observed in 14% and 9% of men and women, respectively. The majority of subjects (73%) sustained one or more metabolic risk factors. Dietary fat contributed 33% and 35% of total energy intake in men and women, respectively, saturated fat contributing 11% in both sexes. A high prevalence of overweight, diabetes, hypertension and dyslipidaemia exists in this population, particularly in men, highlighting the need for intervention.
Asia Pac J Clin Nutr 2002
PMID:Cross-sectional study of diet and risk factors for metabolic diseases in a Ghanaian population in Sydney, Australia. 1223 Feb 35

Evolutionary pressures have probably amplified the mechanisms for minimizing the impact of environmental factors through compensatory maternal mechanisms. Nevertheless, experimentally there are clear long-term programming effects of manipulations to the maternal diet on the likelihood of neural-tube defects associated with folate deficiency The fat/lean ratios of the newborn, and subsequent development, seem to be linked to amino acid or folate supply. An altered balance in the hypothalamic-pituitary-adrenal axis, which experimentally has profound effects on brain development, is induced by low-protein maternal diets. Such diets are linked to a reduced pancreatic capacity for insulin production and to an altered hepatic architecture, with a change in the control of glucose metabolism. Human studies suggest that what happens in pregnancy is modified by the child's diet in the first months of life. Low birthweight is linked to early stunting, and predisposes to abdominal obesity and metabolic syndrome in later life. Metabolic syndrome amplifies the risks of diabetes, hypertension, coronary heart disease and probably some cancers. Mothers with gestational diabetes are themselves prone to early type 2 diabetes and produce heavier babies prone to childhood obesity and adolescent type 2 diabetes. There is increasing evidence of an intergenerational effect, with big babies being prone to excess weight gain, which then, in girls, predisposes them to diabetes in pregnancy, which, in turn, promotes an accelerating cycle of early diabetes in subsequent generations. Essential fatty acids and fat soluble vitamins are important, but we need early interventions and monitoring systems to justify coherent policies.
Asia Pac J Clin Nutr 2002
PMID:Will feeding mothers prevent the Asian metabolic syndrome epidemic? 1249 42

Australia's food and health patterns are inextricably and increasingly linked with Asia. Indigenous Australians arrived in the continent via Asia and have linguistic connections with people who settled in south India; there was interaction and food trade between both South-East Asia and China and northern indigenous Australians over thousands of years. After European settlement in 1788, there have been several and increasing (apart from the period of the infamous White Australian Policy following the Colonial period and Independence, with Federation, in 1901) waves of Asian migration, notably during the gold rush (Chinese), the building of the overland Telegraph (Afghans), the Colombo Plan and Asian student education in Australia from the 1950s onwards (South-Eeast Asians), and with refugees (Vietnamese and mainland Chinese), and business (late twentieth century) and progressive family reunion. Each wave has injected additional food cultural elements and caused a measure of health change for migrants and host citizens. Of principal advantage to Australia has been the progressive diversification of the food supply and associated health protection. This has increased food security and sustainability. The process of Australian eating patterns becoming Asianized is evident through market garden development (and the introduction of new foods), fresh food markets and groceries, restaurants and the development of household cooking skills (often taught by student boarders). Most of the diversification has been with grain (rice), legumes (soy), greens, root vegetables, and various 'exotic fruits'. Food acculturation with migration is generally bi-directional. Thus, for Asians in Australia, there has been a decrease in energy expenditure (and a lower plane of energy throughput), an increase in food energy density (through increased fat and sugary drink intakes), and a decrease in certain health protective foods (lentils, soy, greens) and beverages (tea). This sets the stage for 'eco-diseases'. In a population probably genetically programmed (but modifiably) in utero to abdominal obesity, diabetes (type II and gestational) and cardiovascular disease, these conditions may be rapidly acquired on migration, along with certain cancers (breast, colo-rectal and prostate). Thus, whilst Asian migration to Australia has provided health opportunities for host citizens, there have been threats to migrant citizens in regard to nutrition-related health.
Asia Pac J Clin Nutr 2002
PMID:Asian migration to Australia: food and health consequences. 1249 48

The aim of this study was first, to investigate the prevalence of obesity, abdominal obesity, and clustering of cardiovascular (CVD) risk factors, and secondly, to identify the BMI or waist circumference (WC) level at which clustering increases in South Koreans. A population-based, cross-sectional National Health Examination Survey was carried out in 1998. A total of 8,816 subjects (4,029 men and 4,787 women) aged 15-79 y were selected by stratified multistage probability sampling design. The measurements taken of the subjects included: height, weight, waist and hip circumference, blood pressure, fasting glucose, and lipids. The prevalence of BMI > or = 25 kg/m2 was 25.3% for men and 28.3% for women. The prevalence of WC >90 cm in men, and >80 cm in women was 18.5%, and 38.5%, respectively. Clustering of 3 or more CVD risk factors was 22.7% in men ad 21.7% in women. Using <21 kg/m2; as a referent, subjects with BMI of 23 kg/m2; and 27 kg/m2; had an odds ratio of 3.5 and 10.2 in men, and 3.1 and 6.7 in women, respectively for clustering of CVD risk factors. Using <65 cm as a referent, subjects with a WC of > or = 90 cm in men and > or = 85 cm in women had an odds ratio of 13.4, and 13.6, respectively for clustering of CVD risk factors. Considering the significant associations between clustering of CVD risk factors and BMI or WC, the present study suggests that high prevalence of overweight may have important implications for the health care system, even at a lower level of BMI or WC.
Asia Pac J Clin Nutr 2003
PMID:Obesity, abdominal obesity, and clustering of cardiovascular risk factors in South Korea. 1467 64


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