Publication: Health Tips Weekly
Heart Attack Blood Vessel Damage Repaired | |
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HEALTH TIPS WEEKLY - Thursday, September 13, 2007
"News That Keeps You Healthy"
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Better, cost-effective respirators studied
CAMBRIDGE, Mass., -- U.S. scientists said the human body's
ability to adapt to recurring stimuli might be used to
design more effective, inexpensive artificial respirators.
Massachusetts Institute of Technology researchers said such
an approach could minimize the need for induced sedation or
paralysis currently necessary for some patients to use mech-
anical ventilation. Existing respirators don't consider the
adaptive nature of breathing in their design; some ignore a
patient's natural rhythm and pump air in and out of the
lungs on set intervals. As a result, physicians often must
sedate or paralyze patients to prevent them from fighting an
unfamiliar rhythm. Other respirators that are designed to
rely on the patient to trigger the airflow are costly and
tend to be unreliable for weak patients, such as newborns or
those in critical care. The MIT research suggested, however,
that if a doctor takes the patient's natural breathing rhy-
thm into account and sets the ventilator's rhythm in that
same range, the patient will adapt and synchronize with the
ventilator.
The study by Chi-Sang Poon and Gang Song of the Harvard-MIT
Division of Health Sciences and Technology and Shawna Mac-
Donald of MIT's mechanical engineering department appears in
the online journal PLoS One.
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Brubeck Returns To Moscow on DVD
Here is a DVD that will be cherished forever. 10 years after
his first trip to Moscow, celebrated jazz/classical pianist
Dave Brubeck returns, this time to join the Russian National
Orchestra.
Playing both with a small group of jazz musicians as well as
with the orchestra, Brubeck illustrates his mastery of two
separate styles of music and allows the virtuosity of the
Russian musicians to shine through.
More than just a concert video, the program features rehearsals,
Brubeck's musings on his long career, a jam session with Russian
jazz musicians, and a rare seminar given by Brubeck. Grab a copy
and own a piece a music history. Just $14.99. Visit:
Brubeck Returns To Moscow on DVD
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Possible Chlamydia vaccine target found
PITTSBURGH, -- U.S. scientists have identified a potential
target for a vaccine to fight Chlamydia -- the world's most
prevalent sexually transmitted bacterial infection. Resear-
chers at the University of Pittsburgh Medical Center's Chil-
dren's Hospital, led by Dr. Toni Darville, identified a
plasmid-deficient strain of Chlamydia trachomatis that, when
investigated in an animal model of genital tract infection,
failed to cause disease. Plasmids are small molecules of
DNA. "This finding represents a major step forward in our
work to eventually develop a vaccine against chlamydial dis-
ease," said Darville, a professor of pediatrics and micro-
biology/immunology. "If we can identify plasmid-deficient
derivatives of the C. trachomatis strains that infect hum-
ans, they would have the potential to serve as a vaccine
against this disease." The study is reported in the Journal
of Immunology.
Heart attack blood vessel damage repaired
COLUMBUS, Ohio, -- U.S. scientists have identified the pro-
cess that damages blood vessels during and after a heart
attack and have found a way to repair the vessels. Ohio
State University researchers discovered delivering a vital
molecule (tetrahydrobiopterin) that's depleted during a
heart attack can reverse damage and help restore blood flow.
"This is a useful therapeutic approach and should be easy to
translate," said Jay Zweier, director of Ohio State's Davis
Heart and Lung Research Institute and senior author of the
study. "This should enable improved treatment of patients
with unstable coronary syndromes and heart attacks, allowing
enhanced restoration of blood flow and preservation of heart
muscle at risk."The study that included Cristian Dumitrescu,
Yong Xia, Arturo Cardounel and Lawrence Druhan is reported
online in the Proceedings of the National Academy of Sci-
ences.
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Action urged on menopause product ads
WASHINGTON, -- A U.S. nonprofit group says a red clover di-
etary supplement called Promensil is being deceptively mark-
eted to women to reduce menopause symptoms. The Center for
Science in the Public Interest in Washington is urging the
U.S. Food and Drug Administration and the Federal Trade Co-
mmission to crack down on Promensil's advertising and lab-
eling, which includes a recent television ad that calls it
"the only supplement proven to reduce menopause symptoms"
and ads in women's magazines that claim "22 clinical stud-
ies can't be wrong." Most of the research on Promensil that
looked at hot flashes and other menopausal symptoms found
the red clover supplement to be no more effective than a
placebo, explained David Schardt, CSPI senior nutritionist.
CSPI conducted an analysis of the scientific research on
Promensil and in letters to the federal agencies it is urg-
ing that the government have the company reimburse consum-
ers, run corrective advertising and pay a fine.
Neural basis of intelligence discovered
IRVINE, Calif., -- U.S. scientists have identified a brain
network they believe is the biological basis of intell-
igence. Richard Haier of the University of California-Irvine
and Rex Jung of the University of New Mexico posit the fron-
tal and parietal lobes of the brain are primarily respon-
sible for intelligent thought. The parietal lobe is directly
behind the frontal lobe and both are known to process atten-
tion, memory, and language. The researchers said the integr-
ation of cognitive functions suggests intelligence is based
on how efficiently networks in the frontal and parietal
lobes process information. "Recent neuroscience studies
suggest that intelligence is related to how well information
travels throughout the brain," said Haier, "Our review of
imaging studies identifies the stations along the routes
intelligent information processing takes. Once we know where
the stations are, we can study how they relate to intelli-
gence." Haier and Jung, who reached their conclusions after
a review of 37 imaging studies of the brain related to
intelligence, report their findings online in the journal
Behavioral and Brain Sciences.
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LAVA LAMP NIGHT LIGHT
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Remember lava lamps when you were a kid? Now you can have
the fun, nostalgia and ambience again... this time with
these very cool mini Lava Lamp night-lights.
Fashioned into the traditional lave style, the contents are
non-toxic and child friendly. These blasts from the past have
an easy to use On/Off switch. Head on over to the site to see
a picture or to order.
LAVA LAMP NIGHT LIGHT
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Homocysteine therapy results questioned
STANFORD, Calif., -- A U.S. study suggests lowering homo-
cysteine levels in end-stage kidney disease patients does
not improve survival or reduce vascular events. Patients
with end-stage kidney disease are often treated with high
doses of folic acid and B vitamins to lower their levels of
the amino acid homocysteine, which has been associated with
vascular disease. Dr. Rex Jamison of the Stanford University
School of Medicine and colleagues conducted a randomized
controlled trial at 36 Veterans Administration medical cent-
ers involving end-stage kidney patients being given either a
daily capsule containing folic acid and vitamin B6 and B12
or a placebo. After three months, homocysteine levels in
vitamin group patients had been lowered by about 26 percent,
while the level decreased by 1.7 percent in the placebo
group. But the researchers said the treatment had no sig-
nificant effect on the rate of death between the two groups
-- 448 deaths in the vitamin group vs. 436 deaths in the
placebo group. Treatment also had no significant effect on
other outcomes such as heart attack, stroke and amputation.
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