Volume 4, Number 2, June 2007

The significance of low HDL-cholesterol levels in an ageing society at increased risk for cardiovascular disease
Eberhard Windler, Mark Schöffauer, Birgit-Christiane Zyriax

In most developed and developing countries, the proportion of the population aged 60 years or more is growing faster than any other age group. Given that the vast majority of cardiovascular events occur in older individuals, new thinking is needed to reduce their risk. Epidemiological studies have shown an increasing prevalence of the metabolic syndrome with age, driven by nutrition inappropriate for a modern sedentary lifestyle. A low level of high-density lipoprotein (HDL)-cholesterol, a component of the atherogenic dyslipidaemia of the metabolic syndrome, has been shown to be an important determinant of coronary risk, which rises in prevalence with increasing age. Thus, raising HDLcholesterol, in addition to lowering the level of low-density lipoprotein (LDL)-cholesterol, seems a plausible approach to reduce cardiovascular risk in an ageing population.
Clinical studies have shown that adding nicotinic acid, which raises HDL-cholesterol by 20–25%, to a statin enhances the reduction in progression of atherosclerosis. Results of the ongoing Atherothrombosis Intervention in Metabolic syndrome with low HDL/High triglyceride and Impact on Global Health Outcomes (AIM-HIGH) study are awaited with interest to see whether such theoretical benefit translates into clinical outcome.

Diabetes Vasc Dis Res 2007;4:136-142.

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