Qosaqtiki may qan bisimini yuqurlutushi mumkin

Tetqiqat netijisige asaslanghanda qosaq qismida kop may bar simiz
kishilerning yuquri qan bisimi kisilige giriptar bolush xetiri
yuquri bolidiken.

Abdominal fat may raise blood pressure

Reuters Health

Friday, September 8, 2006

By Amy Norton

NEW YORK (Reuters Health) - Adults who carry most of their excess
weight around the middle may be at particular risk of high blood
pressure, new research shows.

In a 10-year study of Chinese adults, researchers found that those
whose waistlines expanded over the years showed a similar increase
in blood pressure.

Moreover, even young men and women who were abdominally obese at the
start of the study, or who became so over time, were more likely to
be diagnosed with high blood pressure.

The findings appear in the American Journal of Hypertension.

Research has shown that "apple-shaped" people are at greater risk of
heart disease and type 2 diabetes than those whose extra pounds
dwell largely on the hips and thighs. Studies have also suggested
that general obesity raises the risk of high blood pressure, or
hypertension.

But it hasn't been clear whether abdominal obesity, per se, can
cause hypertension, Dr. Chen-Huan Chen, the study's senior author,
told Reuters Health.

This study may be the first to "clearly show" that abdominal obesity
predicts future hypertension, regardless of a person's current blood
pressure or overall body weight, said Chen, a professor of medicine
at National Yang-Ming University in Taipei, Taiwan.

It is possible, he noted, for a person to have a very large
waistline but not weigh enough to be considered generally obese.

For their study, Chen and his colleagues followed 2,377 men and
women age 30 and up for 10 years, during which time one-quarter
developed high blood pressure. Those with large waistlines at the
outset had a higher risk than their slimmer counterparts, as did
people who became abdominally obese during the study period.

Even in a group of healthy adults ages 30 to 43 years, the
researchers found that those whose waistlines expanded also saw
their blood pressure increase.

Abdominal obesity often exists as part of a cluster of conditions
known collectively as metabolic syndrome -- the other components
being abnormal cholesterol levels, hypertension and insulin
resistance, a precursor to type 2 diabetes.

It's a complex collection of heart risks, and it's not fully clear
which problem might cause the others. But the current findings
support the theory that abdominal obesity is the "true culprit" that
spurs the development of insulin resistance, and then other
components of metabolic syndrome, according to Chen.

If that's the case, he noted, "it is obvious that the most important
thing to do is to prevent abdominal obesity, not just obesity."

There's no single definition of abdominal obesity, but in general,
the waist sizes used to define metabolic syndrome are 35 inches or
more for women and 40 inches or more for men.

SOURCE: American Journal of Hypertension, August 2006.