Treats
Circulatory Disorders & Respiratory
Illnesses
Hawthorn (Crataegus
species), a
member of the rose
family, was hung
over the doorway in
the Middle Ages to
prevent the entry of
evil spirits. By the
early 1800's,
American physicians
recognized the
herb's medicinal
properties and began
using it to treat
circulatory
disorders and
respiratory
illnesses.
Considered a "cardiotonic"
herb, the flowers
and berries of the
hawthorn plant have
been used in
traditional medicine
to treat irregular
heartbeat, high
blood pressure,
chest pain,
hardening of the
arteries, and
congestive heart
failure.
Animal and
laboratory studies have found that hawthorn
contains active compounds with antioxidant
properties. Antioxidants are substances that
scavenge free radicals -- damaging compounds
in the body that alter cell membranes,
tamper with DNA, and even cause cell death.
Free radicals occur naturally in the body,
but environmental toxins (including
ultraviolet light, radiation, cigarette
smoking, and air pollution) can also
increase the number of these damaging
particles. Free radicals are believed to
contribute to the aging process as well as
the development of a number of health
problems including heart disease.
Antioxidants found in hawthorn can
neutralize free radicals and may reduce or
even help prevent some of the damage they
cause. Today, many professional herbalists
believe that the antioxidants in hawthorn
may help protect against heart disease and
help control high blood pressure and high
cholesterol.
Congestive
heart failure:
Hawthorn has primarily been studied in
people with congestive heart failure (a
health condition in which the heart is
unable to pump adequate amounts of blood to
other organs in the body). Of six
well-designed trials, four studies concluded
that hawthorn significantly improved heart
function and three found that the herb
improved patients' ability to exercise.
Patients in five of the six studies reported
that hawthorn significantly improved
symptoms of the disease (such as shortness
of breath and fatigue). One study found that
hawthorn extract (900 mg/day) taken for 2
months was as effective as low doses of
captropril (a leading heart medication) in
improving symptoms of congestive heart
failure. A large-scale international study
is currently underway to determine whether
hawthorn extract reduces the risk of death
in people with this disease. Results are
expected at the end of 2002.
Atherosclerosis:
Animal and laboratory studies demonstrate
that this herb has antioxidant properties
that help protect against the formation of
plaques, which leads to a health problem
known as atherosclerosis. Plaque buildup in
the vessels that supply the heart with
oxygen-rich blood may cause chest pain
(angina) and heart attacks while plaque
buildup in the arteries that supply blood to
the brain may result in stroke
Chest pain:
Hawthorn berry preparations have been shown
to combat chest pain (angina), a health
problem caused by insufficient blood flow to
the heart. In one early study, 60 angina
patients were given either 180 mg/day of
hawthorn berry-leaf-flower extract or
placebo for 3 weeks. Those who received the
hawthorn preparation experienced improved
blood flow to the heart and were also able
to exercise for longer periods of time
without suffering from chest pain.
High
cholesterol:
Studies using rats suggest that a hawthorn
tincture (made from the berries) may be a
powerful agent for the removal of LDL
("bad") cholesterol from the bloodstream.
The tincture of hawthorn berries also
reduced the production of cholesterol in the
liver of rats who were being fed a
high-cholesterol diet. Studies to determine
if hawthorn will confer the same effects in
people are needed.
High blood
pressure:
although hawthorn has not been studied
specifically in people with high blood
pressure, considerable evidence supports the
cardiovascular benefits of this herb.
Studies suggest that hawthorn can be taken
safely by people with hypertension who are
also taking blood pressure medications.
|