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Health
Newsletter
new
every month
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June
2006
HEALTH
TOPICS:
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| Health
and Fitness |
| (health
information and |
| your
personal health) |
| Vol.5,
No.6, June 7, 2006 |
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Probiotics
Help Gut Against Stress
In times
of stress our bodies react: the heart will bear faster, palms
will feel sweaty, and a difficult situation may manifest itself
in other reactions of the body. In every day's terms we speak
about something "being a pain in the neck", or the
fear of an exam showing up as "butterflies in the stomach".
Dr. Mary Perdue of the Intestinal Diseases Research Program
at Mc Master University in Hamilton, Ontario went a step further.
The fact that mental stress can bring physiologic changes in
the lining of the intestine has been known for some time. As
a result the epithelium (the lining) is more vulnerable to the
attack of pathogenic bacteria. The researchers put a solution
of lactobacillus to the test, to see whether these gut-friendly
bacilli could offer some help. Stressed rats that received the
treatment with lactobacillus showed a remarkable degree of protection.
The stressed and treated animals were almost as resistant to
intestinal pathogens as animals that had not been stressed at
all. Contrary to that the non-stressed animals did not show
much evidence of bacterial adhesion or penetration: they were
more resistant to the attack of bacteria to their guts.
Dr. Perdue explains that it may be difficult to extrapolate
from the rat model to the human model. Yet it is clear that
humans who are stressed can develop intestinal dysfunction over
time, or gastro-intestinal symptoms can be exacerbated by stress.
In the meantime probiotics are recommended by many doctors and
nutritionists to help restore the gut's natural flora. New guidelines
from Yale Medical School recommend them for diarrhea in children
and adults and in diarrhea, which comes as a result of treatment
with antibiotics.
More research is needed, but existing data suggest that probiotics
can help manage lactose intolerance, prevent infections, and
reduce inflammation. It can lower cholesterol and lower blood
pressure and may help with prevention of colon cancer.
National
Review of Medicine, May 15, 2006, page 8
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Antibacterial
Hand Soaps Pose Hazard
In the quest
of killing hazardous bacteria, antibacterial hand soaps are
claiming a slice of the market. Bacteria can be hazardous and
it remains a fact, that hand washing is an effective way to
eliminate harmful bugs. It is not the quick, five-second wash
under the water tab that gets rid of the bugs. The old trick
of telling kids to sing the "ABC Song" while washing
their hands with soap and water still has some merit: you need
20 to 30 seconds of washing and rinsing to combat bacteria effectively.
In the meantime Researchers at the John Hopkins Bloomberg School
of Public Health report, that the antibacterial agent in hand
soaps, triclocarban, is not without risk. Triclocarban, commercially
known as TCC, is a pesticide and is used extensively in soaps
and body washes. One commercial survey found it in 30% of bar
soaps. If it sounds questionable to the consumer to wash hands
or body with a product that contains a pesticide, it rings even
more alarm bells with scientists that observe the impact of
the product on the environment. After 19 days of treatment time
in the sewage treatment plant, 76 % of the ingredient is still
present in the treated sludge. Treated sludge is later used
as a fertilizer! Triclocarban is toxic when ingested and is
part of toxic waste. After reviewing all these facts, the consumer
has to make the decision whether overkill with antibacterial
hand soaps is such a good idea. Reading product labels and sticking
to less toxic products may very well be the more sensible choice.
The Medical
Post, May 16, 2006, page 47
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Ginger
Kills Ovarian Cancer
Active substances
in ginger are killing cancer cells in lab experiments. This
is the gist of laboratory studies led by Dr. J. Rebecca Liu
at the University of Michigan medical school. The findings on
these studies were presented at the annual meeting of the American
Association for Cancer Research.
In the past it has been implied that the substances [6]-gingerol
and [6]-paradol interfere with carcinogenic processes. Gingerol
also has been linked with antioxidant and anti-inflammatory
properties.
The research group from Ann Arbor used whole ginger extract
which was standardized to a contents of 5% [6[-gingerol to explore
the death of ovarian cancer cells in vitro. They suggest that
ginger can circumvent chemoresistance. Due to this quality ginger
substances can be effective in cancer cells that have been resistant
to chemotherapy. Other substances and their effect on cancer
cells that are closer examined by the researchers are resveratol
and curcumin.
The Medical
Post, May 9, 2006, page 15
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Uterine
Artery Embolization Against Fibroids
Uterine
fibroids are the most common uterine tumors that affect women
in North America. At least 25% have the symptoms that point
to a diagnosis of fibroids, and as many as 77% may have fibroids
that are asymptomatic. Symptoms of fibroids can be a feeling
of fullness in the pelvic area, heavy periods and bleeding between
the periods resulting in anemia. Infertility and miscarriages
can also be a consequence.
About 60% of women with fibroids will undergo surgery, but the
trend is moving towards nonsurgical treatment. 40% of fibroid
patients will receive uterine artery embolization (UAE).
The advantages
are significant, reports Dr. Sanjoy Kundu, a radiologist at
Scarborough General Hospital in Toronto. Compared to the less
invasive UAE, firoid surgery has a higher rate of major complications
like infection and pulmonary embolism. None of the patients
undergoing uterine artery embolization experienced any complications
of infection or pulmonary embolism. UAE patients also have shorter
hospital stays ranging from 1 to 4 days, whereas surgical patients
had hospital stays ranging from 2 to 25 days.
Due to these positive findings, 60% of treatments for uterine
fibroids at Scarborough General Hospital are now done exclusively
with the less invasive procedure, and researchers suggest that
UAE for the removal of fibroids should become first-line therapy.
The Medical
Post, April18, 2006, page 16
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Screening
Colonoscopy Highly Effective
The proverbial
"ounce of prevention" can be very crucial when it
comes to cancer screening methods. Cancer screening has been
in the forefront for some time. Early disease detection is not
only crucial for successful treatment; it can be a lifesaver!
Effective screening methods are available for some forms of
cancer. Mammography screening for breast cancer and rectal examination
and PSA tests for prostate cancer are methods that have received
attention in the media.
Screening the large intestine for colon cancer by performing
a colonoscopy has not made inroads, but new statistics point
out the benefits. A colonoscopy will examine the colon for irregularities,
namely the formation of polyps. Polyps are initially harmless
and non-cancerous, however over time, some polyps have the potential
to turn cancerous. In a colonoscopy examination, small polyps
can be removed immediately, and this "weeding out"
process is a highly effective preventative method against colon
cancer. Research has shown, that one colonoscopy that is performed
in a middle-aged patient (in his 50's or 60's) decreases the
risk of developing colon cancer quite significantly. If no polyps
are found in the initial screening, it is safe to assume that
no colon cancer will present itself for 10 years.
Dr. Harminder
Singh and associates from Cancer Care Manitoba and the University
of Manitoba, in Winnipeg Manitoba/Canada, analyzed data
| One
Screening Colonoscopy Guarantees Low Colon Cancer Risk for
10 Years (
modified JAMA. 2006; 295: p.2366-2373) |
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of the
Manitoba Health's
physicians' database where 35,975 patients had undergone a colonoscopy,
but were negative for colon cancer.These colonoscopies took place
between April 1, 1989, and December 31, 2003 and follow-up was
for 10 years. The end point was death or diagnosis of colon cancer.
This retrospective study showed the following results depicted
in the modified graph bar. Patients who were negative in the beginning
of the study had a reduction of colon cancer rates of 72% at the
10-year point when compared to those who had no colonoscopy. This
is quite an astounding finding. Even at the 5-year point there
was a reduction of colon cancer risk by 45% from a single colonoscopy.
This would indicate that a person should have a colonoscopy at
about the age of 50 to establish freedom of colon cancer. This
could be repeated only every 10 years to ensure that no colon
polyps and colon cancer develop in the meantime. This should be
definitely done in patients who have a family history where colon
cancer occurred in a first relative such as mother, father, brother
or sister. In this familial form of colon cancer they likely should
have a colonoscopy done earlier (at age 40 or earlier). However,
this data would indicate that in everybody such colonoscopy screening
would be beneficial as it is one of the most common cancers in
men and women and other tests are not reliable at this time.
JAMA.
2006;295: page 2366-2373
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