Before they hibernate, grizzlies (pictured) eat around 100lbs worth of nuts, salmon and berries
Could bears hold the cure to OBESITY? Grizzlies
eat up to 58,000 calories a day yet don't get fat or
develop heart disease
http://www.dailymail.co.uk/sciencetech/article-2524726
/Could-bears-hold-cure-OBESITY-Grizzlies-eat-58-000
-calories-day-dont-fat-develop-heart-disease.html
Could bears hold the cure to OBESITY? Grizzlies
eat up to 58,000 calories a day yet don't get fat
or develop heart disease
- ...
- U.S. drug maker Amgen is now researching 12 grizzlies
- held in captivity at Washington State University to work
- out how they manage to stay healthy
By DANIEL BATES
Scientists are studying grizzly bears in the hope they can
help solve
the worldwide obesity crisis - because they are surprisingly
good slimmers.
A study has begun into the fearsome 1,000lbs creatures
because they
eat up to 58,000 calories a day but don't get fat.
Before they hibernate grizzlies eat around 100lbs worth
of nuts, salmon
and berries which increases their cholesterol and causes
their blood
pressure to jump.
Yet unlike humans, they do not suffer heart attacks or
clogged arteries -
and they don't become diabetics.
U.S. drug maker Amgen is now researching 12 grizzlies
held in captivity
at Washington State University to work out how they do it.
Dr Kevin Corbit has been looking at their fat deposits,
monitoring their
hearts, analysing their blood and conducting biopsies
in the hope the
bears will yield their weight loss secrets.It is the only
facility in the
world housing adult grizzlies and offers a unique
opportunity to study them.
According to the Wall Street Journal, Dr Corbit
was inspired by Yogi
Bear and his portly figure when trying to think of
a way to research weight
loss.
As they put on weight before hibernation, bears
seem to be more sensitive
to insulin, he said.
But when hibernation begins they seem to shut
off their responsiveness to
the hormone completely.
Hope for humans? Experts say that from the test results
so far, bears modify their sensitivity
to the hormone insulin, which controls how sugars and
fats are broken down and are used
for energy
Dr Corbit plans to spend the next two years working out
how exactly the
mechanism works.
His work will be assisted by the sequencing of of the
His work will be assisted by the sequencing of of the
bears' genome which
he hopes will be completed soon.
The Washington State University bear centre was set
up 27 years ago and the
animals there were born on site or rescued from places
where they went too
close to humans such as in a national park.
Dr Corbit, who until now has only worked with rats in a
laboratory, had to take
extra precautions when dealing with the grizzlies.The
facility where they are
held has electric fences buried underground so the
bears can't dig them up.
The bears themselves are kept in steel crates when
they are being inspected
and are put under before samples are taken.
Dr Corbit has also become adept at using honey to
distract them whilst another
resarcher scans their hearts.
Amgen research executive Dr Alexander Kamb said
the grizzly bear research
was unusual but given how big an issue obesity had
become, it made sense
to think differently. He said: 'I want to learn how the
grizzly bears work their magic'.
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