时间:2018-12-07 作者:英语课 分类:健康与环境


英语课

HEALTH REPORT - May 22, 2002: Guggulsterone & Cholesterol 1


By Nancy Steinbach
21 May 2002, 20:20 UTC



This is the VOA Special English Health Report.


Researchers say that a natural substance found in some trees can control high cholesterol in laboratory animals.
Cholesterol is a fatty substance in the blood. Too much of it can attach to the inside of blood vessels 2, restrict
blood flow, and cause heart disease.


The guggul (GOO-gle) tree grows in dry areas of India, Pakistan and Afghanistan. A substance
found inside the guggul tree has been used in India for two-thousand years to control weight
and treat arthritis 3.


About forty years ago, an Indian researcher found that the substance was effective against heart
disease. Later studies in India showed that it lowered cholesterol. In India, the substance has



been an approved treatment for high cholesterol for almost twenty years.


American researchers at the Baylor School of Medicine in Houston, Texas reported the results of recent work on
the substance in the publication Science. They showed that the liquid inside the guggul tree contains a compound
called guggulsterone (GOO-gle-STER-own). They discovered how guggulsterone controls cholesterol levels. It
blocks the action of a receptor called F-X-R. A receptor is a protein that sends messages to cells. F-X-R helps
control the amount of cholesterol in the body. Blocking the action of the F-X-R receptor would mean that more
cholesterol is naturally removed from the body.


Other researchers at the University of Texas Southwestern Medical Center in Dallas tested guggulsterone on two
groups of mice. One group had normal F-X-R receptors. The other group had no F-X-R receptors. The
cholesterol levels dropped in the livers of mice with the F-X-R receptor, but not in the others. The researchers say
this proves that guggulsterone works by affecting the F-X-R receptor.


The researchers do not know how guggulsterone affects the F-X-R receptor. They say more tests must be done.
However, they say the substance might be used to control cholesterol in people who cannot take the drugs now
used for that purpose.


The researchers say the discovery supports the idea that some traditional medicines may have important uses in
modern medicine.


Guggulsterone can be bought in stores around the world. However, the researchers say people should not use it
without medical advice. They say guggulsterone can affect the action of other drugs.


This VOA Special English Health Report was written by Nancy Steinbach.



Email this article to a friend
Printer Friendly Version



1 cholesterol
n.(U)胆固醇
  • There is cholesterol in the cell of body.人体细胞里有胆固醇。
  • They are determining the serum-protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度。
2 vessels
n.血管( vessel的名词复数 );船;容器;(具有特殊品质或接受特殊品质的)人
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
3 arthritis
n.关节炎
  • Rheumatoid arthritis has also been linked with the virus.风湿性关节炎也与这种病毒有关。
  • He spent three months in the hospital with acute rheumatic arthritis.他患急性风湿性关节炎,在医院住了三个月。
学英语单词
alaria
anemial
anisokont
bile culture-medium
blue-chipper
Bodenzeolith
bred and born and bred
brennan
brickhouse
bythocythere convexidorsa
camelinus
cape marigold
carpoint
Changane, R.
chloride fluoride bath
coefficient of integration
cohibas
commissionnaire
contract on a seasonal basis
cost insurance freight and commission
data structure matrix
defunds
dibromodichlorosilane
Diomed
esocolitis
eupaformonin
euselectivity (sedlmayer 1956)
family Heteromyidae
fireclay pastic refractory
fullness ratio
functional classification
gastrokinetics
geckotian
geping
glidiazine
guide-bar
heating block
high-speed particles erosion test
hlis
Hooperatings
hydrolytic constant
inverted output
jelsma
kimbell
kreinins
kunstmuseum
Lithocarpus propinquus
lock-away
Loumbol Amar
measure feeder
mishonour
multifile reel
multiparty telephone
neisseria gonorrhoeaes
node of tiller
observed mean life
optical fiducial mark
oscillatory motor
paddle walk
palm oil centrifuge
pestering
picking us up
Pod.D.
ponticello
post-sales
pusb pull oscilator
quadrilateral prism
rectilinear transducer
reddish-blue
reference variable
refrigerated sea water
repatriates
requirements (rqmnts)
residential land
resurgent vapors
Risso's dolphin
roarbach
routemap
sand pike
schedule algorithm
set the stage
sigmoidal joint
simplified fraction
Speedline
Static website
statutory document
subcentromeric
subway series
suprajacent
tabulator machinism
tailed back
temperature of initial formation
thermus aquaticus
track pants, trackpants
tuning effect
Tupistra fungilliformis
uranous chloride
Usona
Voldum
VRPS
with retained ownership
Zip your lips!