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HEALTH TIPS - Friday, February 2, 2007
"News That Keeps You Healthy"
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New breast cancer therapy developed
CAMBRIDGE, Mass., -- U.S. medical scientists say they used
research initially intended for detecting ballistic mis-
siles to develop a treatment for breast cancer.
Massachusetts Institute of Technology researcher Alan Fenn
said treating cancer with heat is not a new idea, but
"researchers were having trouble using it to treat tumors
deep within the body." Further, he said it's difficult to
deliver the heat only to cancer cells without overheating
normal tissue. The microwaves in Fenn's new technique heat
and kill cells containing high amounts of water and ions,
or electrically charged atoms. Cancer cells typically have
a high content of both, while healthy breast tissue con-
tains much less. The outpatient procedure uses a single
tiny needle probe to sense and measure parameters during
treatment. The treatment's first clinical study involved
75 patients with early-stage breast cancer. Of 34 patients
who received the treatment prior to lumpectomy, none had
viable cancer cells remaining at the surgical margins. Of
the 41 patients undergoing a lumpectomy, but not the MIT
treatment, four had cancer cells at the surgical margins.
The research is documented in Fenn's new book, "Breast
Cancer Treatment by Focused Microwave Thermotherapy."
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Crohn's disease: New diagnostic technology
VIENNA, -- Austrian scientists say they've developed a new
diagnostic technology for Crohn's disease: computerized
tomography enteroclysis. CT enteroclysis is reportedly
superior to conventional enteroclysis -- previously con-
sidered the gold standard as an imaging method for the
evaluation of the small bowel in patients with Crohn's
disease. Crohn's disease is an inflammatory disease of the
intestinal wall. "The big advantage of CT enteroclysis is
its ability to detect complications which exist outside
normal parameters of the diagnosis and identification of
Crohn's disease," said Dr. Johannes Sailer of the Medical
University of Vienna and lead author of the research. "Our
recent study proved that CT enteroclysis can detect fistula,
abscess and conglomeration tumor superior to conventional
enteroclysis, with no disadvantages in the detection of
minimal mucosal changes (a sign of early stage Crohn's
disease). "CT enteroclysis is an excellent technique for
diagnosis of all small bowel diseases (that) show morpho-
logic changes to the bowel wall," added Sailer, who said
the technique should replace conventional enteroclysis in
patients with Crohn's disease.
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Scientists explore effects of emotions
NEW YORK, -- Researchers say people who have negative
emotions without knowing their source often allow the
emotions to affect decisions on unrelated issues. "When
we do not know the cause of our negative states --
referred to as mood states by psychologists -- we use
the moods themselves as information about our environment,"
explain Rajagopal Raghunathan of the University of Texas-
Austin, Michel Pham of Columbia University and Kim Corfman
of New York University. They demonstrated the effect by
putting subjects into a sad, anxious or neutral mood, then
having them make choices unrelated to the source of their
feelings. While both anxiety and sadness exerted a strong
influence on decision-making, different types of negative
emotions encouraged different choices. "While anxiety
triggers a preference for options that are safer and pro-
vide a sense of control, sadness triggers a preference for
options that are more rewarding and comforting," write the
authors. Even when subjects identified the cause of the
emotions, decisions moderately or superficially related to
that cause were still affected by the emotions.
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