Role of nicotinic acid in raising high-density lipoprotein cholesterol (HDL-C) to reduce cardiovascular risk: an Asian/Pacific consensus

2005 ◽  
Vol 5 (2_suppl) ◽  
pp. S1-S15
Author(s):  
Philip Barter

ardiovascular disease is a leading cause of morbidity and mortality in Asia, and the burden of disease is expected to rise further in the 21st century. As in Western populations, dyslipidaemia is an important cardiovascular risk factor in Asian people. International guidelines focus on reduction of low-density lipoprotein cholesterol (LDL-C) for prevention and treatment of coronary heart disease (CHD). However, increasing body mass index and prevalence of type 2 diabetes and metabolic syndrome in Asia have highlighted the importance of low levels of high-density lipoprotein cholesterol (HDL-C) as a coronary risk factor. Therapeutic lifestyle changes and pharmacological intervention aimed at raising HDL-C, should benefit such patients. Weight loss and physical However, to achieve target HDL-C levels exercise are important interventions for raising HDL-C. pharmacological intervention is usually necessary. Current treatment options include statins, fibrates and nicotinic acid, either as monotherapy or in combination. Statins are generally regarded as the foundation of lipid-modifying therapy. Mainly via reduction of LDL-C. Both fibrates and nicotinic acidare effective in raising HDL-C levels, and reducing triglyceride-rich lipoproteins. The efficacy and safety profile of nicotinic acid demonstrated in Western populations indicates the clinical benefits of this therapy either alone or in combination with a statin. Based on the available evidence, the Pan-Asian Consensus Panel recommends that HDL-C levels should be raised to at least 1.0 mmol/L (40 mg/dL) in Asian patients with CHD or with a high level of risk for premature vascular disease, including patients at high risk with type 2 diabetes or the metabolic syndrome.

2012 ◽  
Vol 32 (suppl_1) ◽  
Author(s):  
Scott M Gordon ◽  
Amy S Shah ◽  
L J Lu ◽  
Jingyuan Deng ◽  
Lawrence M Dolan ◽  
...  

Risk for atherosclerosis is greatly increased in people who have type 2 diabetes (T2D). Because of this, the emerging epidemic of adolescent T2D holds ominous implications for premature cardiovascular disease (CVD). High density lipoprotein cholesterol (HDL-C) represents the body’s natural defense against CVD but its levels are depressed in individuals with T2D. Recent studies indicate HDL exists as distinct subspecies raising the possibility that certain species may be more cardioprotective than others. However, little is known regarding the role of HDL subspecies in T2D, especially in the adolescent population. Thus we sought to evaluate HDL subspecies and determine whether certain subspecies are associated with protection against the development of early atherosclerosis as measured by carotid intima medial thickness (IMT). Healthy controls and youth with T2D were recruited. Whole plasma was analyzed by high-resolution gel filtration chromatography to resolve HDL sized particles and lipids in each fraction were quantitated by colorimetric assay. T-tests were used to evaluate group differences and linear regression models were constructed to determine independent predictors of carotid IMT. Youth with T2D had higher BMI, total cholesterol and lower HDL-C compared to healthy controls, p<0.05. The groups did not differ in LDL-C, triglycerides or BP. Phospholipid distributions of HDL subspecies were found to be shifted in participants with T2D compared to controls (p<0.05). There was a significant inverse correlation between carotid IMT and the phospholipid content of larger HDL subfractions 22-24 (p<0.05) in youth with T2D. Linear models demonstrate HDL fraction 22 was the only independent predictor of carotid IMT while HDL-C, LDL-C, total -C and triglycerides were not significant. These data suggest an altered HDL particle subclass distribution may better predict protection against early atherosclerosis. Thus analyzing the HDL subspecies may be a more powerful approach to assessing cardiovascular risk than the currently accepted standard of HDL-C.


Angiology ◽  
2009 ◽  
Vol 60 (5) ◽  
pp. 644-649 ◽  
Author(s):  
Thomas F. Whayne

High-density lipoproteins are regarded as “good guys” but not always. Situations involving high-density lipoproteins are discussed and medication results are considered. Clinicians usually consider high-density lipoprotein cholesterol. Nicotinic acid is the best available medication to elevate high-density lipoprotein cholesterol and this appears beneficial for cardiovascular risk. The major problem with nicotinic acid is that many patients do not tolerate the associated flushing. Laropiprant decreases this flushing and has an approval in Europe but not in the United States. The most potent medications for increasing high-density lipoprotein cholesterol are cholesteryl ester transfer protein inhibitors. The initial drug in this class, torcetrapib, was eliminated by excess cardiovascular problems. Two newer cholesteryl ester transfer protein inhibitors, R1658 and anacetrapib, initially appear promising. High-density lipoprotein cholesterol may play an important role in improving cardiovascular risk in the 60% of patients who do not receive cardiovascular mortality/morbidity benefit from low-density lipoproteins reduction by statins.


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