National Effort to Control Kids? Cholesterol Warranted
Researchers at the University of
California, San Diego School of Medicine
are proposing that aggressive intervention
to lower cholesterol levels from
childhood on is the best approach to
reducing the occurrence of coronary
artery disease.
In a review article, published in the
August 5, 2008, issue of Circulation, physician-researchers call current approaches
to lowering cholesterol to prevent
heart disease "too little, too late." There
is a large body of evidence proving
that low cholesterol levels are associated
with low rates of heart disease and
"?our long-term goal should be to alter
our lifestyle accordingly, beginning in
infancy or early childhood."
The researchers do not advocate the
use of drug therapy to achieve low
cholesterol levels in the population at
large. Instead, they suggest programs to
promote therapeutic lifestyle changes,
such as diet and exercise.
A national program to lower cholesterol
could be combined with government
efforts to fight obesity and
diabetes.
"A concerted national effort might
dramatically reduce morbidity and mortality
due to 3 major chronic diseases. It
would take generations to achieve and it
would require an all-out commitment of
money and manpower to reeducate and
modify the behavior of a nation. Is that
impossible? No. We have already shown
that even a frankly addictive behavior
like cigarette smoking can be overcome
(eventually)," wrote the authors.
Statins Lower
Stroke Risk in Seniors
Seniors who take cholesterol-lowering medication after a stroke
or mini-stroke lower the risk of another stroke, according to
the study published online in the September 3, 2008, issue of
Neurology.
For the study, the researchers looked at 4731 individuals who
had a recent stroke or mini-stroke, including 2249 individuals
aged 65 and older and 2482 individuals under age 65. In each
group, about 50% of the patients received the statin drug atorvastatin,
and about half received a placebo.
The findings showed that levels of low-density lipoprotein
cholesterol were reduced by an average of 61 points in the
senior group and by an average of 59 points in the under-65
group. The risk of stroke was lowered by 26% in the younger
group and by 10% in the older group.
"It's estimated that 20% of the US population will be 65 and
older by 2010, so it's important that we identify ways to reduce
the burden of strokes and other cerebrovascular disease in this
group," said study author Seemant Chaturvedi, MD.
Soy Has No Effect
on Cholesterol
Regular consumption of soy protein had no significant effect on
low-density lipoprotein (LDL) cholesterol, according to recent
study findings, despite the protein being promoted as a way to
lower cholesterol.
The findings "do not support the current health claims for soy
protein in a general population," said study author Peter R.C.
Howe, PhD. He is referring to the health claims approved for
soy food both in the United States and the United Kingdom that
associate daily consumption of 25 g of soy protein to a reduction
in heart disease risk through lowering of LDL cholesterol.
For the study, the researchers looked at 35 men and 58
women who had mildly high cholesterol levels. Each participant
was assigned to rotate through 1 of 3 diets for 6 weeks each.
The researchers measured each participant's blood cholesterol
at study onset and after each 6-week diet. The findings,
published in the August 2008 issue of The American Journal of
Clinical Nutrition, found no considerable effect of the diets with
either 24 g or 12 g of soy protein on LDL levels.
Keep Taking Cholesterol Medicine After AMI
Individuals may want to rethink stopping
statin medication because it failed to
prevent an acute myocardial infarction
(AMI). Canadian researchers found that
survivors of heart attacks who quit taking
cholesterol-lowering medicines were
more prone to die during the following
year, compared with individuals who had
never been on the drugs.
The study looked at British patients
who had survived a heart attack and were
still alive 3 months later. The researchers
found that about 30% of patients prescribed
a statin ceased taking it within
the first year. Patients who used statins
before a heart attack and continued their
use after were 16% less likely to die over
the next year.
"Because statins are preventive drugs,
patients may not feel the immediate benefit
of taking them and sometimes stop.
However, it looks like it might be quite a
dangerous practice after an AMI," said researcher
Stella Daskalopoulou, MD, PhD.
Dr. Daskalopoulou said it was unclear
why those who continued taking their
statins did better. "Regardless of the
mechanism or explanation, physicians
should be careful when assessing each
patient's medication needs."
F A S T F A C T: Statin use increased by 156% between 2000 and 2005.