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"St John's Wort is a weak monoamine
oxidase inhibitor (MAOI) and serotonin agonist. Concern
has been raised regarding initiation of hyperadrenergic
MAOI-reactions by mixing adrenergic preparations, such
as ephedra and ephedrine- containing preparations, with
St John's Wort; however, no cases of serotonin syndrome
or MAOI crisis have been linked to the use of St John's
Wort.
Strychnine has been
found in imported herbal patent medicines and can cause
abdominal distress. Although frequently formulated in
homeopathic doses, toxic amounts of strychnine cause
profound metabolic acidosis, rhabdomyolysis, and
generalized "spinal seizures" in fully alert patients.
Cardiovascular system- Cardiac glycosides and
other cardioactive steroid contaminants may cause
toxicity. Digitalis can cause severe cardiotoxicity (eg,
complete heart block). An outbreak of digoxinlike deaths
occurred in New York City when a Chinese aphrodisiac
called Chan-Su was sold. The labeling was in Chinese and
stated that the product was meant to be applied
topically, but several people ingested it. This product
contained an extract from the venom of Bufo toads, which
caused the deaths. Ephedra and ephedrine containing
products (eg, Ma Huang) may produce cardiac stimulation,
hypertension, peripheral vasoconstriction, chest pain,
myocardial infarctions, and intracerebral hemorrhage. Ma
Huang (ephedra) may produce hypersensitivity myocarditis
(case report) and vasculitis. Data collected on adverse
effects have enabled the FDA to ban ephedra products
from the United States.
Hepatic system- Hepatic toxicity with Budd-Chiari
syndrome has been reported with pyrrolizidine alkaloids,
which are metabolized to alkylating agents that produce
hepatic veno-occlusive disease, hepatomegaly, and
cirrhosis. These herbal products include heliotrope,
gordolobo, and comfrey, and are used to make teas.
Toxicity can affect the fetus as well. Pennyroyal oil
teas have been mistaken for other mint teas. These teas
contain the hepatotoxin, pulegone, which causes
hepatocellular necrosis. Pulegone toxicity can result in
multisystem organ failure. Germander and Kava can cause
centrilobular necrosis. In France, germander was
marketed as a slimming agent in the 1990s; fatalities
were reported. Chaparral (ie, creosote bush, greasewood,
hediondillo) can produce periportal injury, inflammatory
changes, scarring, cholangitis, and cholestasis.
Renal system- Birthwort, heartwort, and fangji
can cause interstitial renal fibrosis due to
aristolochic acid, a known nephrotoxin. Licorice root
may cause profound renal potassium loss.
Hematologic system- Ginkgo biloba has been
reported to increase bleeding times and may have
contributed to intracranial hemorrhages. Yohimbine use
has been associated with agranulocytosis. L-tryptophan
has been contaminated with a by-product and associated
with 38 deaths. Numerous chronic pulmonary effects are
known collectively as eosinophilia-myalgia syndrome.
Elevated eosinophils are characteristic of the syndrome.
Other systems- Echinacea and chamomile tea can
cause anaphylaxis. Royal jelly and yohimbine can cause
allergic reactions. Shiitake mushrooms can cause severe
dermatitis. Garlic, chamomile tea, and capsicum may
produce contact dermatitis.
Some herbal products contain high concentrations
of heavy metals, such as lead, mercury, and arsenic
(also found in kelp); they can cause heavy metal
toxicity. (Use of ayurvedic medications should arouse
suspicion of heavy metal contamination).
Medical-Legal Concerns:
The two most common pitfalls are failure to ask
patients about use of herbs and herbal products and
failure to report drug interactions or any herbal
poisonings to the FDA for further investigation.
Also, delay in diagnosis and management can lead to
irreversible catastrophic conditions."
Source: American Medical Forensic Specialists
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Pesticide Linked to
Testicular Cancer Risk |
"Males
exposed to a byproduct of the pesticide DDT may have an
increased risk of testicular cancer, according to
research published online in the Journal of the
National Cancer Institute April 29. Blood levels of
DDE, the main persistent metabolic product of
DDT,
were higher in a sample of American men with testicular
germ cell tumors (TGCT) than in other men. This
relatively rare cancer is often treatable, especially
when detected early.
The U.S.
banned
DDT in 1973, but the pesticide continues to be used
elsewhere. The chemical and its metabolites are stored
in fat tissue and can accumulate, for instance, in
humans and in fish. "While levels have declined in the
population since the 1970s, DDE remains detectable in
the majority of Americans," said lead investigator Dr.
Katherine A. McGlynn of NCI's
Division of Cancer Epidemiology and Genetics.
"This study suggests that chemicals that persist in the
environment may have effects years after their usage
ceases.
A link between
pesticides and testicular cancer was proposed decades
ago, but testing the hypothesis has been a challenge
because the disease is rare. The researchers studied 739
U.S. servicemen with TGCT and 915 healthy men who had
provided blood samples to the Department of Defense, on
average, 14 years before the current analysis.
The men in the
group with the highest blood levels of DDE were 1.7
times more likely to develop TGCT than men with the
lowest concentrations. If the risk estimates are
correct, then DDT exposure could account for 15 percent
of TGCT cases in the study.
DDT belongs to a
family of organochlorine pesticides that may disrupt the
body's endocrine system. "Because evidence suggests that
TGCT is initiated in very early life, it is possible
that exposure to these [pesticides] during fetal life or
via breast feeding may increase the risk of TGCT in
young men," the researchers write."
Source: The National Cancer Institute
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FDA MedWatch- Enbrel-
Prescribing Information Revised To Include A
Boxed Warning Regarding The Risk Of Infection,
Including Tuberculosis |
"ENBREL® is
indicated for reducing signs and symptoms, inducing
major clinical response, inhibiting the progression of
structural damage, and improving physical function in
patients with moderately to severely active
rheumatoid arthritis"
Source: The Internet Rx Drug List
"Amgen and Wyeth
Pharmaceuticals informed healthcare professionals of
revisions to prescribing information for Enbrel. The
revisions include a BOXED WARNING about infections,
including serious infections leading to hospitalization
or death that have been observed in patients treated
with Enbrel. Infections have included bacterial sepsis
and
tuberculosis. The ADVERSE
REACTIONS section of the label was updated to include
information regarding global clinical studies and the
rate of occurrence of tuberculosis in patients treated
with Enbrel. Healthcare professionals should screen
patients for latent tuberculosis infection before
beginning Enbrel. Patients should be educated about the
symptoms of infection and closely monitored for signs
and
symptoms of infection
during and after treatment with the drug. Patients who
develop an infection should be evaluated for appropriate
antimicrobial treatment and, in patients who develop a
serious infection, Enbrel should be discontinued."
Source: The Food and Drug Administration
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Stroke Symptoms in
Women: Know the Unique Warning Signs |
Recognizing stroke
symptoms, and getting quick diagnosis and treatment
could mean the difference between life and death or
permanent disability. But often, a woman's stroke
symptoms don't fit the textbook signs causing delays in
treatment. |
Women
having a stroke are more likely to delay seeking
treatment than their male counterparts.
Classic stroke symptoms:
Know the classic stroke symptoms:
-
Sudden numbness, weakness, or
paralysis of your face, arm or leg —
usually on one side of your body
-
Sudden difficulty speaking or
understanding speech (aphasia)
-
Sudden blurred, double or decreased
vision
-
Sudden dizziness, loss of balance or
loss of coordination
-
A sudden, severe "bolt out of the
blue" headache or an unusual
headache, which may be accompanied
by a stiff neck, facial pain, pain
between your eyes, vomiting or
altered consciousness
-
Confusion, or problems with memory,
spatial orientation or perception
Stroke symptoms in women
The
new research study shows that women may
have traditional symptoms less often
than men do, and they may be more likely
to experience and report an alternative
symptom first. This discrepancy may
cause women to delay seeking help. A
woman coming into the emergency
department with facial weakness is
quickly sent off for brain imaging, but
when the main complaint is shortness of
breath or fainting, it may be that
neither the woman nor even emergency
room personnel immediately suspect a
stroke.
In
addition to or instead of the
traditional stroke signs, a woman may
have:
-
Loss
of consciousness or fainting
-
Shortness of breath
-
Falls
or accidents
-
Sudden pain in the face, chest, arms
or legs
-
Seizure
-
Sudden hiccups
-
Sudden nausea
-
Sudden tiredness
-
Sudden pounding or racing heartbeat
(palpitations)
While
this new research is important, the
traditional stroke warning signs are
still the most common symptoms of
stroke. The new findings are a helpful
reminder — to both you and your doctor —
that women may have different symptoms.
Know the warning signs:
If
you suspect that you or someone else is
having a stroke, don't hesitate. Rapid
diagnosis and treatment improve your
chances of survival and decrease your
risk of permanent disability. To help
you remember the classic symptoms what
to look for, think FAST: face, arms,
speech and time.
-
Face —
Does one side of the face drop when
asked to smile?
-
Arms —
When raising both arms, does one arm
drift downward?
-
Speech —
When trying to repeat a simple
sentence, are the words slurred or
incorrect?
-
Time —
Rush to emergency care immediately
to get evaluated and treated.
As more research is done
on women and stroke,
primary care nurses and
doctors are becoming
more familiar with the
stroke symptoms and
signs that are unique to
women.
If you're at risk of a
stroke, your best
defense is to know both
the classic signs and
symptoms and those that
are unique to women. If
you have any symptoms
you worry might be a
stroke, ask your doctor
to evaluate you for a
stroke.
Source: The Mayo Clinic
|
How Much Water Do
Your Need Daily? |
"Every day you lose
water through your
breath, perspiration,
urine and bowel
movements. For your body
to function properly,
you must replenish its
water supply by
consuming beverages and
foods that contain
water.
Several approaches
attempt to approximate
water needs for the
average, healthy adult
living in a temperate
climate.
-
Replacement
approach.
The average urine
output for adults is
about 1.5 liters
(6.3 cups) a day.
You lose close to an
additional liter of
water a day through
breathing, sweating
and bowel movements.
Food usually
accounts for 20
percent of your
total fluid intake,
so if you consume 2
liters of water or
other beverages a
day (a little more
than 8 cups) along
with your normal
diet, you will
typically replace
the lost fluids."
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