In a nutshell
This study examined the effects of alcohol consumption on cholesterol and triglycerides levels in hypertensive patients.
Some background
High blood pressure (hypertension) is a major risk factor for serious cardiovascular (heart and blood vessels) events, such as heart attacks or strokes. This is due to a process of progressive blockage of the arteries with fatty materials, called atherosclerosis. Other factors that contribute to atherosclerosis and increase the risk of cardiovascular events include low HDL levels (high density lipoprotein, often referred to as the "good cholesterol"), high triglyceride (a form of fat in the blood) levels and high LDL levels (low density lipoprotein, often referred to as the "bad cholesterol"). A high ratio between triglyceride and HDL levels (TG/HDL-C ratio) has also been shown to correlate with a high risk of cardiovascular events.
Methods & findings
This study evaluated the records of 21,572 middle aged men, 7,397 of which were diagnosed with hypertension. Patients were divided, according to daily alcohol intake, into non-drinkers, light drinkers (less than 22 grams alcohol per day) and heavy drinkers (more than 22 grams alcohol per day). A standard drink (one beer or a small glass of wine) is equal to about 14 grams of alcohol.
In hypertensive men, triglyceride levels were significantly lower in light drinkers compared to non-drinkers. Heavy drinkers, however, exhibited significantly higher levels of triglycerides compared to both light and non-drinkers. HDL levels were significantly higher in light drinkers compared to non-drinkers, and were highest in heavy drinkers. LDL levels were highest in non-drinkers and lowest in heavy drinkers. The TG/HDL-C ratio was significantly lower in light and heavy drinkers compared to non-drinkers, and was lowest in light drinkers.
The bottom line
These results suggest that moderate alcohol consumption is associated with lower triglyceride and LDL levels, higher HDL levels, and a decreased TG/HDL-C ratio compared to alcohol abstinence.
The fine print
These results may indicate a decreased risk of serious cardiovascular events with moderate alcohol consumption, but this was only investigated indirectly (through questionnaires), and no definite conclusion may be reached.
What’s next?
Consult with your physician regarding consumption habits and how these affect your risk of serious cardiovascular events.
Published By :
American journal of hypertension
Date :
Jul 01, 2013
