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Osteoporosis is a skeletal disease in which bone becomes
fragile and at risk for fracture. It effects both men women, and can develop
undetected for decades before symptoms appear. Although there is no cure at the
present time, there are steps you can take at any age to either prevent, stop,
or slow down its progress.
WHO'S AT RISK.
Although Caucasian women are primarily affected, frail African-American,
Hispanic, and Asian women are also at significant risk. Although women are four
times more likely than men to develop the disease, osteoporosis is on the rise
for men because they are living longer, according to Dr. Steven R.Gambert, MD,
AGSF, Chairman and Physician-in-Chief at Sinai Hospital of Baltimore. The
National Osteoporosis Foundation reports that two million American men aged 50
and over have osteoporosis, and another 12 million are at risk.
An article published
in American Geriatric Society's Annals of Long-Term Care, lists the following
additional risk factors for Osteoporosis:
- Advanced
age
- Family
history of osteoporosis
- Small,
thin frame and body size
- Prior
fracture with relatively low trauma after age 40
- Current
history of cigarette smoking
- Physical
inactivity or sedentary life-style
- Early or
surgical menopause without hormone replacement therapy
- Low
calcium intake
- Certain
medications, such as corticosteroids, some anti-seizure drugs, long-term use of
heroin
- Excessive alcohol or caffeine intake
- Medical
conditions such as Cushing's syndrome and hyperthyroidism
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HELP &
PREVENTION. It is never too late to start a prevention program. In addition,
those already affected by osteoporosis may be able to stop or slow down bone
loss, increase bone density, and reduce fracture risk. Studies have shown that
bone health can improve at any age with the avoidance of smoking and excessive
alcohol, exercise, nutrition which promotes adequate calcium and Vitamin D
intake and, in certain circumstances, prescription medicine. A healthy diet
which promotes weight gain in under-weight individuals can also help reduce the
risk.
Providing sufficient
calcium and vitamin D is the basic step to help reduce fracture risk and
to slow bone loss. Most American women have a dietary calcium intake below
recommended levels, and supplementation is usually required to ensure adequate
intake. In a study of 389 men and women over the age of 65, subjects who
received 500 mg of calcium and 700 IU of vitamin D daily for three years had a
nonvertebral fracture rate 60% lower than the control group, and a moderate
decrease in the rate of bone loss.
The absorption of
calcium decreases with age, and bone loss occurs in men and women throughout
adult life. Since vitamin D is necessary for the absorption of calcium, both
are generally recommended.
The National
Institutes of Health Consensus Development Panel on Optimal Calcium Intake
recommends a daily intake of 1500 mg for everyone over the age of 65. The
recommended daily allowance (RDA) of calcium for persons over 50 is 1200 a day.
The RDA for vitamin D is 400 IU daily, but 600-800 IU are recommended for
individuals who are homebound, since they may not get sufficient amounts of the
naturally occurring vitamin from the sun. Both men and women should take the
recommended dosages of calcium and vitamin D unless a physician recommends
otherwise.
The cessation of
smoking can also contribute to healthier bones, according to Virginia K.
Lee, APRN, BC, University of Virginia Health System. Research has shown smoking
to be an important risk factor for osteoporosis and fracture. In one study of
female twins in which one was a smoker and the other a non-smoker, significant
differences were found in bone density as well as in concentrations of calcium,
parathyroid hormone, and urinary markers of bone resorption. Ms. Lee suggests
that smokers gradually reduce their smoking habits or consider using a nicotine
patch. Finding interesting, diversionary activities may help reduce the desire
to smoke.
Exercise in
the later years has a modest effect on slowing bone mineral density loss.
Exercise also has a positive effect on muscle strength and mass, even into
later years. There is convincing evidence that exercise improves function,
helps maintain independence, and promotes quality of life. Recent trials
conclude that there is consistent evidence from prospective and case-controlled
studies that physical activity is associated with a 20-40% reduced risk of hip
fracture relative to sedentary individuals. Exercise, particularly involving
balance and lower extremity strength training, may reduce fall risk. The
National Osteoporosis Foundation suggests weight-bearing exercise along with
other preventive measures. Consult your doctor before beginning any exercise
program.
According to a report
in the Archives of Internal Medicine, a recent study has shown that drinking
certain types of tea may also help keep your skeleton strong. Study
participants who consumed one cup of tea (black, green, or oolong) a week for
at least 10 years had higher bone density in all areas of the body than those
who rarely drank. The researchers think that compounds in tea leaves, such as
fluoride and phytoestrogens, may provide the beneficial bone bolster.
Medication may
be prescribed to prevent osteoporosis in high-risk individuals or to treat
those already affected by the disease. With the advent of new drugs, the
options for osteoporosis treatment and prevention have increased. These
medications can slow or stop bone loss, increase bone density and reduce
fracture risk. The National Osteoporosis Foundation reports that bisphonates
(alendronate and risedronate), calcitonin, raloxifene, and estrogens are
approved by the US Food and Drug Administration for the prevention and
treatment of osteoporosis. Estrogen is often combined with progestin to help
prevent endometrial cancer. It should be noted that hormone replacement therapy
carry risks as well as benefits, which should be discussed with your physician
before starting the therapy.
TESTING FOR BONE
MINERAL DENSITY. A Bone Mineral Density test (BMD) measures the strength and
density of your bones. If bone mass is found to be very low, you and your
physician can decide on appropriate treatment. The test is also used to monitor
treatment or to measure the rate of bone loss.
Testing is
recommended by the National Osteoporosis Foundation (NOF) for all women who are
65 and older. The NOF also recommends testing for postmenopausal women under 65
with a fracture, and for women who have one or more risk factors for
osteoporosis. Joseph Lane, M.D. at the Hospital for Special Surgery in New York
recommends BMD testing for all women at the time of menopause and for all men
at the age of 70. Men who are at high risk for osteoporosis should be tested
earlier. For most people a bone density test may be repeated every 2 - 3 years
and compared to earlier tests to help determine how quickly bone mass and
density are being lost. Individuals taking certain medications may require
testing every 6-12 months.
There are many
different ways to measure bone density, but the most popular is the DEXA which,
according to Carolyn Becker, M.D., Assistant Director of the Tony Stabile
Osteoporosis Center at the NY Presbyterian Hospital-Columbia University,
"
is really the gold standard" and the basis upon which
treatment recommendations are usually made. Dr. Becker adds, "Most people
should have a bone density at some point in their lives." The tests are
painless, noninvasive, and safe.
(©Sally Sclair 2002. This article
cannot be reproduced or reprinted under any circumstances without the written
permission of the author. All rights reserved)
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