According to a new study released by an international
research team gastric bypass and other abdominal surgeries are not only benefic
for the aspect, but these procedures may be extending, or even, saving lives.
Lars Sjöström, M.D., Ph.D., and Claude Bouchard, Ph.D., of
the Pennington Biomedical Research
Center have tracked more
than 4,000 obese patients in the last ten years.
“This was an interventional study,“ said Bouchard, “meaning
we enrolled obese patients into the study who had sought surgery and compared
them to a similar group who were undergoing conventional treatment during the
same time frame. Previous studies were based on much smaller sample sizes, with
shorter follow-up periods and did not have the proper control group for
comparison. What we learned is that an often controversial method - surgery -
presents clear clinical evidence of being beneficial.”
After a decade, those in the surgery group lost 14 percent
to 25 percent of their original weight compared to 2 percent in the other
group. Of the 2,010 surgery patients, 101 died. There were 129 deaths in the
comparison group of 2,037 people.
“We count these results as a milestone in our understanding
of the benefits of bariatric surgery for obesity,” Bouchard said. “We are
confident in the results and believe this will lead to an acceptance that
bariatric surgery is a viable, life-saving option for severely obese patients.”
Also deaths from diabetes in the surgery group were
dramatically cut by 92 percent; from cancer by 60 percent and from heart
disease by 56 percent. Surprisingly, the surgery group had a higher risk of
death from accidents, suicides and other causes not related to disease.
In the United
States alone, 177,600 operations were
performed last year, according to the American Society for Metabolic &
Bariatric Surgery. The most common method was gastric bypass, or
stomach-stapling surgery, which reduces the stomach to a small walnut-sized
pouch and bypasses part of the small intestine where digestion occurs.
In the United States alone, 177,600
operations were performed last year, according to the American Society for
Metabolic & Bariatric Surgery. The most common method was gastric bypass,
or stomach-stapling surgery, which reduces the stomach to a small walnut-sized
pouch and bypasses part of the small intestine where digestion occurs.
Earlier this week a study led by Nikhil Dhurandhar, Ph.D.,
now an associate professor at Pennington Biomedical Research Center,
demonstrated in the laboratory experiments that infection with human
adenovirus-36 (Ad-36), long recognized as a cause of respiratory and eye
infections in humans, transforms adult stem cells obtained from fat tissue into
fat cells.
If further research will confirm the results of this study
it is very likely that soon we will have a vaccine or antiviral medication to
help fight viral obesity in the future.
“We’re not saying that a virus is the only cause of obesity,
but this study provides stronger evidence that some obesity cases may involve
viral infections,” said study presenter Magdalena Pasarica, M.D., Ph.D., of the
Pennington Biomedical
Research Center,
a campus of the Louisiana
State University
system.
Obesity is an increasingly alarming health condition
worldwide and a study published in July added to the alarm: by 2015, 75 percent
of American adults will be overweight, 41 percent obese, it says.
Researchers at the Johns Hopkins Bloomberg School of Public
Health's Center for Human Nutrition have done a study that said that the
percentage of American adults who were obese more than doubled in 40 years,
from 13 percent in the ‘60s to 32 percent in 2004. The researchers said the
percentage of overweight and obese Americans has increased average rate of 0.3
to 0.8 percentage points a year.