Leukemia is a cancer of the blood cells. Normally, blood cells are made in
an orderly, controlled way. When leukemia develops, the bone marrow produces
abnormal cells; therefore, the cells that are responsible for fighting
infections and preventing bleeding are not made correctly.
Leukemias are classified as acute or chronic; an acute leukemia progresses more
rapidly. They are also classified by the type of white blood cells in which they
arise -- lymphoid cells or myeloid cells. There are four primary types of
leukemia:
Acute lymphocytic leukemia (ALL)
Acute myeloid leukemia (AML)
Chronic lymphocytic leukemia (CLL)
Chronic myelogenous leukemia (CML).
In addition, there are other forms of leukemia that are rarer.
Diet and Leukemia
Regular consumption of fruits and
vegetables during the first two years of life is associated with a reduced risk
of childhood leukemia.
Supplements and
Herbs for Leukemia
Research regarding the use of supplements to prevent or treat leukemia is
at its infancy, hence no confident statements can be made. My intent is to
mention a few that have been studied.
Mangosteen herb
Antioxidants
--Children being treated for acute lymphoblastic
leukemia seem more able to deal with their treatment if their levels of
antioxidants don't drop too much.
Kids with leukemia do not take enough antioxidants, which raises their
risk of side effects during chemotherapy. Chemotherapy produces changes that
stress the body's antioxidant defense system. Therefore, it's important that the
diets of cancer patients contain adequate amounts of antioxidants. In a 6-month
study, the researchers examined antioxidant intake and chemotherapy side effects
in 103 children with acute lymphoblastic leukemia (ALL), the most common cancer
in kids. During the study period subjects ingested vitamin E, total
carotenoids, beta-carotene, and vitamin A in
amounts that were 66, 30, 59, and 29 percent, respectively, of the US
recommended dietary allowance. Greater intake of vitamin
C was associated with fewer therapy delays, less side effects, and fewer
days spent in the hospital. Similarly, the risk of infection and side effects
decreased as vitamin E and beta-carotene intake increased.
Flavonoids found in
vegetables
Bilberry has been
studied
Green Tea - See study
below, EGCG is found in high
concentration in green tea
Lycium berry or
Wolfberry
Parthenolide, a compound found in
feverfew, has been tested
against chronic myelogenous leukemia.
Rosemary extracts have been found to be helpful.
Berberine in
Coptis Chinensis
Green tea and Leukemia
Green tea may help treat a form of adulthood leukemia. Doctors at the
Mayo Clinic in Rochester, Minnesota, found that of four patients who started
drinking green tea or taking green tea extracts, three showed clear improvements
in their condition in the following months. The patients all had chronic
lymphocytic leukemia, or CLL, a form of leukemia that usually arises during or
after middle-age and typically progresses slowly. Like all types of leukemia,
chronic lymphocytic leukemia is a cancer of the blood and bone marrow, in which
abnormal white blood cells replace healthy blood cells. What's particularly
interesting about these four cases, according to Dr. Tait Shanafelt, is that the
patients all started using green tea on their own, after hearing media
reports about a lab study Shanafelt and his colleagues conducted. That study
showed that one compound found in green tea, known as EGCG, was able to kill
cancer cells that were taken from chronic lymphocytic leukemia patients and put
in a test tube with the tea compound. After the findings were published, the
doctors became aware of four chronic lymphocytic leukemia patients at their
center who had started using green tea products and seemed to be doing better.
In interviewing the patients and reviewing their records, the doctors found that
three showed signs of a regression in their cancer after they started to drink
green tea or take green tea capsules. The fourth had an improvement in her white
blood cell count, though her disease remained unchanged by standard criteria. In
one case, the patient had been showing progressive swelling in her lymph nodes -
one of the characteristics of chronic lymphocytic leukemia - before she starting
taking green tea capsules twice a day. Over the next year, her lymph nodes
steadily decreased in size. These cases alone cannot prove that green tea or its extracts conferred the
benefits. An answer to that question, he said, awaits the outcome of an ongoing
clinical trial he is leading. The study, sponsored by the National Cancer
Institute, is testing the effects of a purified EGCG extract in treating chronic
lymphocytic leukemia. SOURCE: Leukemia Research, online December 1, 2005.
Cause of Leukemia
There are many causes of leukemia, from exposure to
toxins to viral infections.
Living near a fuel station may
quadruple the risk of acute leukemia in children. French scientists who carried
out a study of more than 500 infants found that a child whose home was near a
fuel station or vehicle-repair garage was four times as likely to develop
leukemia as a child whose home was further away. And the longer a child had
lived nearby, the higher the risk of leukemia seemed to be. The prevalence of
childhood leukemia is four in every 100,000 children, but it is the most common
type of childhood cancer in developed countries. Few clear risk factors have
been identified for the childhood variant, but exposure to benzene in the
workplace has been identified as a possible factor in leukemia in adults. The
risk appeared to be even greater for acute non-lymphoblastic leukemia, which was
seven times more common among children living close to a fuel station or
commercial garage. SOURCE: Occupational and Environmental Medicine, September
2004.
Power lines can cause a small increase in the risk of childhood leukemia.
Other leukemia causes
are radiation and benzene, and chemotherapeutic agents. People who spend years using older
permanent hair dyes may have somewhat higher odds of developing leukemia.
Living near a high-voltage power line roughly
doubles the risk of childhood cancers such as leukemia.
Women with
early breast cancer who receive higher-than-standard doses of two chemotherapy
drugs (epirubicin and cyclophosphamide) as "add-on" therapy are at increased
risk of subsequently developing cancer of the blood. Although add-on therapy
with these drugs for early breast cancer has increased the number of long-term
survivors, a small risk of secondary acute myeloid leukemia (AML), with or
without a pre-leukemia known as
myelodysplastic syndrome (MDS), has been
identified.
Greater body size significantly increases the risk of
myeloid leukemia. Researchers studied data from a cohort of 40,909 adults who
were followed for an average of 8.4 years. The incidence of myeloid leukemia was
roughly five times higher among overweight and obese individuals than among
individuals with normal or low weight. Specifically, the risk of myeloid
leukemia increased 83 percent for every 10-kilogram increase in fat-free mass,
and 35 percent per 10-centimeter increase in waist circumference.
A study for the first time hints that maternal
infection with Helicobacter pylori -- the bacterium that causes most cases of
stomach ulcers -- is associated with an increased risk of childhood leukemia in
the offspring. Leukemia makes up 25 percent of all childhood cancers worldwide
and so-called acute lymphoblastic leukemia (ALL), the most common form of the
blood cancer, comprises about 80 percent of all childhood leukemias.
Exposure to pesticides in the womb or as a child can
double the risk of developing acute leukemia. Children born to women who used
insecticides in the home while pregnant and after the birth were nearly twice as
likely as other youngsters to develop leukemia. Even insecticidal shampoos to
kill head lice raised the odds of the disease.
A mother who contracts influenza, pneumonia, or a sexually
transmitted disease around the time of pregnancy appears to be at increased risk
of having a child that will develop leukemia.
Maternal Epstein-Barr virus (EBV) reactivation may be associated
with a proportion of childhood leukemia. What that proportion this may be has
yet to be defined.
Children who live close to an AM radio transmission tower may have
an elevated risk of leukemia. American Journal of Epidemiology, August 1, 2007.
Young children living near nuclear power plants have a
significantly higher risk of developing leukemia and other forms of cancer
Children and leukemia
The chances of children being diagnosed with leukemia seem to be related to the
number of infections they had in their first year of life. Dr. Eve Roman from
the University of York and colleagues identified 455 children with leukemia
diagnosed between 2 and 5 years of age, and found that 425 of them had a type
called acute lymphoblastic leukemia or ALL. Children diagnosed with ALL had
significantly more infectious episodes in infancy than did a comparison group of
matched "controls" without leukemia.
Pollution and leukemia
A University of Texas study found a possible link between childhood leukemia and
living close to the city's refinery row along the Houston Ship Channel. Living
within two miles of elevated levels of 1,3-butadiene around the ship channel's
petrochemical complex was associated with an increased incidence of childhood
acute lymphocytic leukemia compared with those living more than 10 miles away.
The substance 1,3-butadiene is used to make petrochemicals like ethylene.
Leukemia and Infections
Common infections that affect mothers and babies may trigger certain
types of childhood cancers. Leukemia and brain tumors, leading cancers in
children, occur in clusters, which suggests that outbreaks of infections are a
contributing cause of the disease. These infections could be minor, common
illnesses...such a cold, mild flu or a respiratory infection. Leukemia is the
most common childhood cancer, accounting for nearly one third of all cases. Most
of the rise has been in children ages 1 to 4. An infection in the womb or early
in life could lead to cancer in young people who carry mutant cells that would
make them more vulnerable to the disease. The virus would hit this mutant cell
and cause a second mutation, prompting the onset of cancers like leukemia or
brain tumors.
Viruses and Leukemia
Viruses of the retrovirus and herpesvirus families may potentially cause
certain human leukemias and lymphomas. The human T-cell leukemia
virus type 1
causes adult T-cell leukemia. Influenza virus may also be a cause.
From 1974 to 2000, peaks in the rate of the acute lymphoblastic
type of leukemia (ALL) among children in the UK seem to have occurred
immediately after influenza epidemics. Perhaps some childhood leukemia may be
triggered by infection occurring close to the time of diagnosis of leukemia.
The findings are based on an analysis of data from the National Registry of
Childhood Tumours, which covers the entire childhood population of the UK.
During the 27-year period covered by the study, the rate of childhood ALL
increased by 0.7 percent annually, on average. However, the rate spiked upward
slightly in 1976 and 1990, just after influenza epidemics. Journal of the National Cancer Institute, March 15, 2006.
Leukemia Symptom
Leukemia Symptoms usually develop fairly quickly in acute leukemia. Most cases of
acute leukemia are diagnosed when the person visits a doctor after becoming ill.
Chronic leukemia symptoms progress gradually and are generally not as severe as
in acute leukemia. About a fifth of people with chronic leukemia do not have
symptoms at the time of their diagnosis.
Some symptoms of leukemia are due to deficiencies of
normal blood cells. Others are due to collections of leukemia cells in tissues
and organs. Leukemia cells can collect in many different parts of the body, such
as the testicles, brain, lymph nodes, liver, spleen, digestive tract, kidneys,
lungs, eyes, and skin. The following leukemia symptoms are common to all types:
Unexplained fevers, night sweats, fatigue or low energy, low mood, easy bruising
or bleeding, and weight loss. The first leukemia symptom may be vague, such as
fatigue. Another vague leukemia symptom is malaise, just a general sense of not
feeling well. A more serious leukemia symptom is excessive bruising.
Leukemia Treatment
Patients on
Gleevec
for chronic myelogenous leukemia can develop severe congestive heart failure.
Leukemia Research Update
Feverfew: weeding out the root of
leukaemia.
Expert Opin Biol Ther. 2005 Sep;5(9):1147-52.
Malignant stem cells are central to the pathogenesis and perpetuation
of acute myelogenous leukaemia (AML). Despite their crucial role, standard
chemotherapy often does not target these critical cells and, thus, the 'root' of
leukaemic disease is not eradicated. To derive better therapies, unique
molecular features of malignant stem cells have been characterised for AML and
evaluated with regard to ablation of disease. In the course of such studies, the
compound parthenolide, which is derived from the medicinal plant feverfew, has
recently been shown to preferentially induce AML stem cells to undergo
apoptosis. Importantly, parthenolide had no discernable effect on normal blood
cells. Thus, this naturally occurring agent may provide new avenues of
investigation for the treatment of leukaemia. In this article, characteristics
of parthenolide are reviewed.
Leukemia may increase the risk for gout.
The sesquiterpene lactone parthenolide induces apoptosis of human acute
myelogenous leukemia stem and progenitor cells.
Blood. 2005 Feb 1.
Recent studies have described malignant stem cells as central to the
initiation, growth, and potential relapse of acute and chronic myelogenous
leukemia (AML and CML). Because of their important role in pathogenesis, rare
and biologically distinct leukemia stem cells represent a critical target
for therapeutic intervention. However, to date, very few agents have been shown
to directly target the leukemia stem cells population. The present studies demonstrate that
parthenolide, a naturally-occurring small molecule, induces robust apoptosis in
primary human acute myelogenous leukemia cells and blast crisis CML (bcCML) cells while sparing normal
hematopoietic cells. Furthermore, analysis of progenitor cells using in vitro
colony assays, as well as stem cells using the NOD/SCID xenograft model, show
that parthenolide also preferentially targets acute myelogenous leukemia progenitor and stem cell
populations. Notably, in comparison to the standard chemotherapy drug Ara-C,
parthenolide is much more specific to leukemia cells. The molecular mechanism of
parthenolide -mediated apoptosis is strongly associated with inhibition of NF-kappaB,
pro-apoptotic activation of p53, and increased reactive oxygen species (ROS).
Based on these findings, we propose that the activity of parthenolide triggers
leukemia stem cells specific apoptosis, and as such represents a potentially important new class
of drugs for leukemia stem cells targeted therapy.
Immunomodulation with interferon-gamma and granulocyte-colony-stimulating factor or granulocyte-macrophage colony-stimulating factor, helps deal with refractory fungal infections in patients with leukemia.
A child living near a high voltage power line may run a higher risk of contracting leukemia — the most common childhood cancer. But while there is an increased incidence of leukemia in children whose home address at birth was within 200 meters of a power line, the study’s authors admitted they had not proved that proximity to the power lines was the cause. “There is an association between childhood leukemia and proximity of home address at birth to high voltage power lines,” the study concluded.
Flavonoids induce apoptosis in human leukemia U937
cells through caspase- and caspase-calpain-dependent pathways.
Nutr Cancer. 2004;50(1):90-100.
Flavonoids are polyphenolic phytochemicals that are ubiquitous in
plants and present in the common human diet. They may exert diverse beneficial
effects, including antioxidant and anticarcinogenic activities. In this study we
tested the apoptotic activity of 22 flavonoids and related compounds in leukemic
U937 cells. Several flavones but none of the isoflavones or flavanones tested
induced apoptotic cell death under these conditions, as determined by reduction
in cell viability, flow cytometry, and oligonucleosomal DNA fragmentation.
Structure-activity relationship showed that at least two hydroxylations in
positions 3, 5, and 7 of the A ring were needed to induce apoptosis, whereas
hydroxylation in 3' and/or 4' of the B ring enhanced proapoptotic activity. At
lower concentrations, these compounds were also able to sensitize these cells to
apoptosis induced by tumor necrosis factor-alpha. Regarding the mechanisms,
galangin, luteolin, chrysin, and quercetin induced apoptosis in a way that
required the activation of caspases 3 and 8, but not caspase 9. In contrast, an
active role of calpains in addition to caspases was demonstrated in apoptosis
induced by fisetin, apigenin, and 3,7-dihydroxyflavone. Our data show evidence
of the proapoptotic properties of some flavonoids that could support their
rational use as chemopreventive and therapeutic agents against carcinogenic
disease.
Induction of apoptosis by
xanthones from mangosteen in human leukemia cell lines.
J Nat Prod. 2003 Aug;66(8):1124-7.
We examined the effects of six xanthones from the pericarps of
mangosteen, Garcinia mangostana, on the cell growth inhibition of human
leukemia cell line HL60. All xanthones displayed growth inhibitory
effects. Among them, alpha-mangostin showed complete inhibition at 10
microM through the induction of apoptosis.
Induction of apoptosis in cancer cells by Bilberry (Vaccinium myrtillus)
and the anthocyanins.
J Agric Food Chem. 2003 Jan 1;51(1):68-75.
Among ethanol extracts of 10 edible berries, bilberry extract was found to be
the most effective at inhibiting the growth of HL60 human leukemia cells and
HCT116 human colon carcinoma cells in vitro. Bilberry extract induced apoptotic
cell bodies and nucleosomal DNA fragmentation in HL60 cells. The proportion of
apoptotic cells induced by bilberry extract in HCT116 was much lower than that
in HL60 cells, and DNA fragmentation was not induced in the former. Of the
extracts tested, that from bilberry contained the largest amounts of phenolic
compounds, including anthocyanins, and showed the greatest
1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. Pure
delphinidin and malvidin, like the glycosides isolated from the bilberry
extract, induced apoptosis in HL60 cells. These results indicate that the
bilberry extract and the anthocyanins, bearing delphinidin or malvidin as the
aglycon, inhibit the growth of HL60 cells through the induction of apoptosis.
Only pure delphinidin and the glycoside isolated from the bilberry extract, but
not malvidin and the glycoside, inhibited the growth of HCT116 cells.
Inhibition the growth of human leukemia cells by Lycium barbarum
polysaccharide ( wolfberry )
Wei Sheng Yan Jiu. 2001 Nov;30(6):333-5.
The effect and the mechanism of Wolfberry polysaccharide on
inhibiting the growth of human leukemia HL-60 cells were examined. Wolfberry could inhibit the growth of HL-60 cells in dose-dependent
manner and decrease the membrane fluidity of the cell. Agarose gel
electrophoresis of DNA from the cells treated with wolfberry revealed a "DNA ladder"
and positive TUNEL test. The results showed that the apoptosis of HL-60 cells
induced by wolberry maybe its important mechanism on anti-tumorgenesis.
Children who attend daycare regularly in the first few months of life are less likely to develop acute lymphoblastic leukemia, the most common form of the blood cancer, than kids who do not. The most plausible explanation for why daycare seems to protect against leukemia is that it allows children to be exposed to common infections early in life.
Cytotoxic effects of Coptis chinensis and Epimedium sagittatum extracts
and their major constituents (berberine, coptisine and icariin) on hepatoma and
leukemia cell growth.
Clin Exp Pharmacol Physiol. 2004 Jan-Feb;31(1-2):65-9.
1. The present study was conducted to evaluate the cytotoxic effects of
Coptis chinensis and Epimedium sagittatum extracts and their major constituents
on hepatoma and leukemia cells in vitro. The results of the
present study suggest that the Coptis chinensis extract and its major
constituents berberine and coptisine possess active antihepatoma and anti
leukemia activities.
If left untreated,
polycythemia vera can
develop into leukemia.
Catha edulis (Khat) induces cell death by apoptosis in leukemia cell
lines.
Pycnogenol bark
leukemia lymphoma
Leukemia questions
Q. I read your article about how parthenolide might be good for Leukemia
patients. Do you know if they still have any clinical trials on this?? Also,
would it help if I took supplements of parthenolide or is that a waste?? I have
AML and am not doing well at all. I have tried bmt and all other treatments
basically.
A. Unfortunately, so little research has been done with
natural herbs and supplements for leukemia treatment that it is very difficult
to give any suggestions with any certainty. Please discuss with your health care
provider the information on this leukemia page and then decide on a course of
action.
Q. Your webpage on leukemia states that leukemia will
increase the risk of gout. Why is this so?
A. Leukemia leads to high uric acid levels which make one more
prone to gout.
Q. I was diagnosed with Acute Myeloid Leukemia in 2004
- after much chemo went in remission and the cancer returned in 2006 - given
much chemo. and was told I had a few days to live on 8/19/06. Discovered
glyconutrients, essaic, Acai berry - cancer returned 5/07 I receive transfusions
as needed twice a week now. Fucoidan sounds promising could you provide any
information on this please? I am 57.
A. We wish you optimal healing and keep your strength. Please see
fucoidan for info.
Q. What advice can you offer regarding: B-cell, chronic
lymphocytic leukemia and chronic bronchitis? For instance, would fulvic acid be
of help?
A. We have not studied the role of fulvic acid in leukemia.
Q. Last week I was diagnosed by my primary physician of
having leukemia. My white blood cell count was 3 times higher than 3 month ago.
I was sent immediately to a blood oncologist and he confirmed the high white
blood cell count. He took some bone marrow from my hipbone and this coming week
I will have the results of those tests.
I ate a lot of soy products in my life and my age is 78 years. I am in very good
condition except my bones are starting to hurt and I am getting tired more
easily. Would genistein supplements help?
A. We have not seen any human studies using genistein for leukemia
treatment. We wish you optimal healing. These are difficult times for you.
Leukemia symptom