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U.S. childhood cancer death rate declines sharply
-(Reuters - 6/12/2007)
The cancer death rate for children in the United States has declined sharply -- down 20 percent from 1990 to 2004 -- thanks to better treatment of leukemia and other cancers, health officials said on Thursday.
Cancer stands as the leading disease-related cause of death for U.S. children, the Centers for Disease Control and Prevention said in a report. Better treatments are improving survival rates, the CDC said.
The cancer death rate for U.S. children was 34.2 per million for children up to age 19 in 1990, but fell to 27.3 per million in 2004, the CDC said. This death rate has declined 1.7 percent per year during this period, according to the
CDC.
"It's not that we're having less cancer diagnosed. The incidence rates, the new-case rates are the same. It's just that we're getting better survival," the CDC's Dr. Lori Pollack said in a telephone interview.
There were 2,223 childhood cancer deaths in 2004, compared to 2,457 in 1990, the CDC said. The only greater causes of death for U.S. children were accidents, homicide and suicide.
The blood and bone marrow cancers known as leukemia caused about 26 percent of the 2004 cancer deaths, with brain and other nervous system tumors causing another 25 percent. Death rates from leukemia dropped more sharply than other cancers, by 3 percent per year from 1990 to 2004, the CDC said.
Dr. Otis Brawley, chief medical officer of the American Cancer Society, said better drugs and improvements in how drugs are used are helping improve leukemia survival, along with effective use of bone marrow transplants.
"We've made tremendous advances against pediatric cancer. We'd like to see greater advances. Kids are still dying from it," Brawley said in a telephone interview.
U.S. Hispanics have not experienced as large a decline in childhood cancer death rates as other groups, according to the CDC report. Their cancer death rates have declined by only 1 percent per year during the 15 years studied.
"Studies have documented that Hispanics lack sufficient access to health-care services because of inadequate health insurance coverage, lack of health insurance, poor geographic access to health-care providers, lack of transportation to and from providers, and cultural and linguistic barriers, which might contribute to this disparity," according to the report.
There were also regional differences, with cancer death rates falling the least in the West and the most in the Midwest, the CDC said. In addition, boys had significantly higher death rates than girls, the CDC said.
[Top]
Children with cancer are emotionally resilient-
(ANI- 19/09/2007)
A new study by St. Jude psychologists has revealed that children with cancer are emotionally well adjusted and most do not suffer depression or anxiety.
The study that analysed depression, anxiety, posttraumatic stress and quality of life also found that children with cancer do as well as, and often better, than their healthy peers.
"We see them as a flourishing population that has adapted to the stress of having cancer and undergoing treatment," said Sean Phipps, Ph.D., a member of the St. Jude Division of Behavioural Medicine.
"They become quite resilient to the long-and short-term emotional and physical effects of their disease and the treatments." Phipps added.
The unexpected finding that children with cancer are emotionally resilient is significant due to the dramatic improvement in survival rates of paediatric cancers.
"There has been a shift in research toward the concerns of long-term survivors of paediatric cancers," Phipps said.
"The ability of these children to cope with the after-effects of cancer is the major issue now. What we are learning from this population might help us learn how to improve the quality of life of children who are not doing so well," Phipps said.
According to Phipps, the low level of depression among children with cancer does not reflect a state of "illusory mental health". That is, these children are not simply clinging to an illusion of mental health by denying distress. Rather, many of them simply have a reduced awareness of emotional distress, and they think of themselves as being well-adjusted and content, a response called a "repressive adaptive style."
Children who have a repressive adaptive style have a personality characterized by a positive self-image and avoidance of threat, Phipps said. Such children tend to think of themselves as well-adjusted, self-controlled and content. Only a small percentage of these children experience emotional difficulties that become serious enough to be called pathologic, he said.
"The finding that children with cancer are flourishing comes largely from self-report studies in which children discussed their own responses to stresses in their lives," Phipps said.
"This is good news that many researchers in the field have been reluctant to embrace. There is a tendency instead to question whether this conclusion is mistaken; whether we've missed something in our studies or have not done the right studies. But the finding has held up over time, and we have not yet found a self-report test that documents in children a high level of difficulty adjusting to their disease," Phipps added.
Phipps noted that the reason behind the successful adaptation to cancer and its treatment might be the good care, nurturing and love these children receive, In addition, they are not confronted with tests in school, bullies or other common stresses their peers face.
"A repressive adaptive style appears to provide a pathway to resilience or a route to successful adjustment for these children. However, it might be only one of several mechanisms that allow them to flourish," he said.
The low levels of depression found in children with cancer using self-reporting and other traditional psychological testing led some researchers to believe different tests were needed to study this population, such as tests of posttraumatic stress disorder. Posttraumatic stress disorder is a disorder based on anxiety that follows a terrifying event or ordeal that either harmed or threatened to harm the person.
The diagnosis of posttraumatic stress disorder depends on the patient having certain symptoms from several different categories, such as experiencing flashbacks and nightmares; feeling detached; avoiding people or things linked to the trauma; losing interest in activities; and having difficulty sleeping.
But investigators found that most children with cancer did not have the full range of symptoms to indicate the disorder. Instead, they had a few of the symptoms that can occur, but not enough of them to qualify for the full diagnosis. This led other investigators to abandon these test and instead look for posttraumatic stress symptoms, even if those symptoms are too few to permit a diagnosis of posttraumatic stress disorder.
"Even with this strategy, researchers found that children with cancer appear to have lower levels of stress than do individuals who experienced a natural disaster, serious injury, the death of a parent or another type of major stress," Phipps said.
A team led by Phipps examined self-reported somatic symptoms of 120 children with cancer who had finished medical treatment at least six months previously. Somatic symptoms are physical problems such as loss of weight, trouble sleeping and loss of energy. The researchers found no differences between children with cancer and healthy controls in self-reported somatic symptoms. In fact, cancer patients reported slightly lower symptom levels.
Phipps and his colleagues are also studying several other factors from the growing field of "positive psychology," such as optimism, benefit-finding, post-traumatic growth and the concept that people facing adversity might actually benefit and become stronger from it in many ways.
"Research psychologists have historically focused on searching for problems that need fixing, rather than on a person's strengths," Phipps said.
"However, our findings suggest that gaining a better understanding of how children are able to remain so well adjusted in the face of difficult life challenges may provide a more fruitful approach to our research," Phipps added.
[Top]
'Promising drug'
for child cancer-(Yahoo
News)
Childhood cancer survival rates are improving all the time.
Laboratory tests suggest a new drug may prove effective in tackling three
types of childhood cancer, a scientific conference has heard.
The drug RH1 was able to kill tumour cells from neuroblastoma,
osteosarcoma and Ewing's sarcoma, all of which can be resistant to current
treatment.
In a pre-clinical study, University of Manchester scientists found the
drug could boost cancer cell death by 50%.
They now want to hold a clinical trial involving children with cancer.
RH1 effectively encourages cancer cells to kill themselves.
All cells have an inbuilt suicide mechanism which becomes active when they
become damaged or grow uncontrollably, but in cancer cells this mechanism
either switches off or stops working properly.
The first stage of a clinical trial of RH1 in adult cancer patients has
been completed, and has been found to be particularly effective in tumours
with a certain sort of enzyme - DT-diaphorase - found in cancers of the
lung, liver and breast.
In many cases, patients become resistant to their drugs and need new
options.
Dr Guy Makin, the study's lead researcher at Cancer Research UK's Paterson
Institute, said it was "very exciting" to be able to work with a drug for
children that had only just completed the first stage of adult trials.
"We hope that this will be just the first of many new agents that we can
show are useful for treating childhood cancer," he told the National
Cancer Research Institute Conference in Birmingham.
According to Cancerbacup, some 100 children develop neuroblastoma and
around 60 children develop osteosarcomas or Ewing's sarcoma in the UK each
year.
"Survival rates for children with cancer are high at 75%," said Dr Bruce
Morland, chairman of the Children's Cancer and Leukaemia Group (CCLG).
"But in many cases, patients become resistant to their drugs and need new
options."
One parent of a child who had been blinded by neuroblastoma at 18 months
old welcomed the news.
"We were devastated to hear that Louis had neuroblastoma, and finding out
that he had been blinded by the disease was really hard to deal with,"
said Michael Moorhouse, from Bradford.
"He's now doing well and is like any other six-year-old boy, enjoying life
and pursuing his passion for drumming.
"It's really encouraging to see new research like this that could help
children like Louis in the future."
[Top]
Most Kids With
Cancer Well-Adjusted
Children With Cancer Resilient, 'Flourishing' Psychologically-(WebMD Medical
News-21/09/2007)
The amazing
resilience of most children with cancer isn't an illusion --
psychologically, they're doing better than most kids.That's the surprising conclusion of St. Jude's Children's Hospital
psychologist Sean Phipps, PhD.
"We see them as a flourishing population that has adapted to the stress of
having cancer and undergoing treatment," Phipps says in a news release.
"They become quite resilient to the long- and short-term emotional and
physical effects of their disease and the treatments."
Phipps investigated why kids with cancer report unusually low levels of
depression and report fewer physical complaints than kids without cancer
report. Certainly, he thought, these self-reports were really
self-illusion.At least that was Phipps' original theory. He found that kids with cancer
tend to adapt to the stresses of their situation by adopting a "repressive
adaptive style" in which they think of themselves as well-adjusted,
self-controlled, and content. Their behavior becomes organized around
protecting this self-image.
Such children aren't just "faking good," Phipps found. In fact, they
underreport physical symptoms and minimize their severity or impact."Is there a physiological price to pay for the low distress reported by
those children with a repressive adaptive style? Based on these
preliminary findings, the answer appears to be a tentative 'No,'" Phipps
writes in the advance online edition of the Journal of Pediatric
Psychology.
Instead, Phipps finds this style to be one of the pathways to resilience.
"Repressive coping is identified as a specific pathway to resilience,
among others, including hardiness, self-enhancement, and the transient
experience of positive emotion," he notes.
That helps explain why we so often find inspiration in the way children
deal with life-threatening cancer.
"People coping successfully with severe stress seek naturally to create
positive emotional states, both to gain relief from stress and to gather
strength to face adversity," Phipps writes. "There may be aspects of the
childhood cancer experiences in general that are associated with an
increased frequency of positive affects, even if these are transitory, and
embedded in a context that is also threatening."
[Top]
World Cancer Day
announcement- Global Campaign To Help Parents Recognise The Signs-(Yahoo
News- 10/02/2006)
Cancer is the second highest cause of death in children between the ages
of one to fourteen. While statistics show that over 160,000 children
worldwide are newly diagnosed with cancer each year, the exact number of
new cases each year is not known as cancer registers do not exist in many
countries. Significant advances have been made in diagnosis and therapy
during the past four decades and the good news is that childhood cancer
can largely be cured if detected sufficiently early. Yet children with
cancer who live in developing countries have less than a 50 per cent
survival rate, as opposed to 80 per cent for children living in developed
countries.
The International Union Against Cancer (UICC), a Geneva based NGO, and its
members of cancer-fighting organisations in over 80 countries, are
dedicating World Cancer Day 2006 to childhood cancer. Under the slogan,
‘My Child Matters’, World Cancer Day will take place on Saturday 4
February 2006 and focus on early detection and equal access to treatment,
as well as celebrating the lives of all children around the world in the
fight against childhood cancer. Members around the world will join
together to organise events, including a wide range of educational
activities and fundraising events to educate parents about early detection
in the fight against childhood cancer.
“Childhood cancer is more than twice as curable as all adult cancers,”
says Isabel Mortara, UICC Executive Director. “To save thousands of
children’s lives each year it is vitally important that childhood cancer
is detected early and that access to treatment is improved in developing
countries,” she says. “Currently only 20 per cent of children with
cancer living in developing countries receive the treatment they need.”
The types of cancer that occur in children differ greatly from those found
in adults, as do the treatments and survival rates. Frequency of many
common cancer types differs between populations. For example, leukaemia
represents almost a third of all childhood cancers in Europe, America and
East Asia, where it is the most common childhood cancer. Other tumour
types are more frequent in developing countries, such as lymphomas, Kaposi’s
sarcoma or retinoblastoma.
Although there are different types of cancer, at least 85 per cent of all
childhood cancers have similar signs and symptoms. These include
continued, unexplained weight loss and fever; pallor; headaches – often
with early morning vomiting; unusual swelling and abdominal mass; swollen
head; development of excessive bruising or bleeding; white glow in the
eye; and sudden changes in balance or behaviour. Since most of the
symptoms of cancer can be interpreted as common child ailments, parents
should insist, where possible, that physicians carry out tests to rule out
cancer. Cancer in children develops rapidly and early diagnosis and
treatment greatly improve the chances that the child will survive and live
an active and productive life.
“World Cancer Day not only aims to stimulate collective responsibility
and action among families, community-based groups and the medical
profession, but also to look for solutions to expand access to treatment
in developing countries,” says Dr John R. Seffrin, President of UICC.“Forty
years ago, childhood cancer in developed countries was almost uniformly
fatal,” says Dr Seffrin. “Vigorous action has changed that picture
dramatically, so that today, most children live. In developing countries
this is not the case, and the majority of children with cancer are still
dying. Across the globe, we need to make surviving cancer the rule, not
the exception. The UICC is funding specific projects to help make this
happen, and hope that others will follow our lead to bridge the huge gap
between the two worlds. The time to act is now, so that together we can
help save children’s lives.”
The International Union Against Cancer (UICC) is the only international
non-governmental organisation that is dedicated solely to the global
control of cancer. Its vision is of a world where cancer is eliminated as
a major life-threatening disease for future generations. As the world's
largest independent, non-profit association of cancer-fighting
organisations, UICC is a catalyst for responsible dialogue and collective
action. With over 270 member organisations in more than 80 countries, UICC
is a resource for action and a voice for change.
[Top]
Clinic helps child cancer survivors grappling
with effects later in life-(Associated Press-20/11/2005)
Living in the moment is not uncommon when a family has a child
struggling with cancer: family members need to get the facts, commit to
sometimes grueling treatment and hold their lives together. But as the
numbers of childhood cancer survivors increases nationwide- with about 80
percent of diagnosed children beating the disease these days- so too has
the understanding that cancer, and the treatments used to fight it, can
result in medical, educational or personal complications years later. St.
Louis Children's Hospital has developed a Late Effects Clinic to monitor
and help childhood cancer survivors.
"To me, it's the most exciting part of oncology right now," said
nurse practitioner and program coordinator Jeanne Harvey. "Now, what
I want them to think about is that they're going to be around for a long
time, and we talk to them about things they can do to be healthy."
But the relief of surviving cancer can be mixed with long-term struggles
against its complications. The strong chemotherapy and radiation
treatments that helped kill children's cancer cells also obliterated
healthy cells in many cases or damaged developing brains and bodies.
Patients with leukemia may have learning difficulties because of intense
therapy to the central nervous system. Patients with a tumor in the head
or neck may end up with vision or hearing problems. And certain treatments
that cure one cancer can trigger a second, separate cancer later.
"We need to be concerned about the quality of life during the cancer
experience, and we also need to be concerned about the quality of
survivorship," said Dr. Gregory Reaman, director of the Children's
Oncology Group in Bethesda, Md., an organization committed to fighting
pediatric cancer through advances in research and care. He said the
majority of the group's 230-member institutions have developed long-term
follow-up programs, largely in the past two decades. With one out of about
every 700 young adults under the age of 30 in the country a survivor of
childhood cancer, program officials realized they needed services to
assist them, he said.
The St. Louis Children's Hospital program began in 2001 and prides itself
on its multidisciplinary approach. Cancer survivors like Loren La Fata,
21, of Fenton, can begin attending the clinic located on the ninth floor
of the hospital two years after their cancer treatments finish. He was
diagnosed in 1999 with leukemia, a bone marrow cancer, when he was 15. A
stem cell transplant from his brother, Luke, helped him battle the cancer,
but it also resulted in some medical complications, like joint stiffness
and trouble gaining weight, as his brother's immune response "figures
out it's in a different body and will attack parts of my body," La
Fata said. The Late Effects Clinic formally sees patients twice a month,
and La Fata said he goes every two or three months. "If the Late
Effects Clinic wasn't there, there really wouldn't be any place I could
go," he said.
La Fata otherwise might fall through the cracks -- too old and having made
too much progress for standard pediatric cancer treatment and not actively
needing cancer treatment from an oncologist for adults, who also might not
specialize in the issues unique to young cancer patients. The clinic is
open to cancer survivors who received treatment at St. Louis Children's
Hospital or elsewhere, with no set age requirement to attend. Those who
attend can meet not only with doctors but also with a social worker and a
chaplain. The clinic also links cancer survivors with resources.
For example, a mother's decreased heart function is addressed so she can
better keep up with two children around the house. A teen who realizes
that a lack of feeling in his legs is hindering his efforts to learn how
to drive is referred for physical therapy. A young man who had a brain
tumor and feels cut off from his old friends is encouraged to attend a
summer camp with other cancer survivors. The clinic also tries to teach
young patients, who may have played a passive role in treatment with
parents calling the shots, how to become active in caring for their own
health as adults.
And it tries to help loved ones create a new reality. "When your
whole life is focused on taking care of a sick kid, that's all there
is," said Diane Curry, 46, of Herrin, Ill., a family friend who looks
after Jaelyn Sanders, 3. The child was diagnosed with leukemia in January
2003 and recently started working with the clinic. Curry said it's hard
not to worry about new health problems or that something may be missed if
loved ones let their guard down. "When you realize she's going to be
a normal kid, you have to get back into the normal things in life."
[Top]
Race
is on for new childhood cancer drugs-(Yahoo News-16/02/2005)
Nine-year-old
Killian Owen was the first child to try an experimental leukemia treatment
that was showing promise in adults — but the chance came too late. Yet
the youngster left a precious legacy: Scientists are using his preserved
cells to help create stronger drugs for other children desperate for new
options. Killian’s saga illustrates both the pitfalls and promise of
pediatric cancer research. Scientists are finding exciting leads, but few
novel therapies for children are in the pipeline. When promising ones do
come along, sick youngsters often must wait years for safety testing in
adults to be done before they get a shot. “We’re always one step
behind,” sighs Dr. Alan Wayne of the National Cancer Institute, who
treated Killian with a drug called BL22 and is pushing for quicker
clinical trials for children.
“The
fact he was given a chance has led to so much hope for so many other
children,” says Killian’s mother, Grainne Owen, who began a charity to
spur pediatric cancer research. But, she adds, “You shouldn’t have to
jump through the hoops we had to jump through to get our child to try a
new drug.”
In
a first, the Food and Drug Administration recently gave fast-track
approval for a cancer drug for children to begin selling even before
testing in adults is finished. The drug, Clolar, is to treat relapsed
leukemia. FDA’s drug chief, Dr. Janet Woodcock, says she’s open to
speeding through more child-first cancer treatments whenever those
smallest patients have no good options. And a stark new report from the
influential Institute of Medicine urges government and drug makers to cut
children’s waiting time for access to experimental therapies — and for
the NCI to actually develop those drugs if industry sees too little profit
to do so. A “near absence” of pediatric cancer drug research “threatens
to halt the progress in childhood cancer treatment achieved during the
past four decades,” the report warns.
Childhood
cancer survival is at an all-time high, with 80 percent of patients now
cured. But more than 2,000 children a year still die, making cancer the
leading pediatric killer disease.
While
much of the progress came from mixing-and-matching adult chemotherapies in
young patients, specialists agree it will take more novel approaches to
help the remaining hardest-to-treat children. That’s because even
cancers with the same name can act differently in children than in adults.
But there are so many more adult patients that it’s not profitable for
drug companies to pursue pediatric cancer aggressively, the IOM report
says. Indeed, a recent industry survey shows 32 products being tested for
childhood cancers; about half are already sold for adults, and the rest
are in more advanced testing for adults than for children.
“If
a drug cures 300 cancers a year, who’s going to pay for that drug?”
asks Dr. Lee Helman, NCI’s pediatric oncology chief. “It’s going to
be a societal problem.” Still, scientists hot on the trail of so-called
targeted therapy — ways to attack the molecular differences that make
some cancers more aggressive — are trying to speed children’s access
to early stage research studies. Some examples:
- Johns
Hopkins University is about to start pediatric testing of a drug that
blocks a mutation in a gene called FLT-3 that slashes survival for patients
with acute myeloid leukemia, or AML. Dr. Donald Small urged drug maker
Cephalon Inc. to allow the child study because soon-to-finish adult
tests were showing promise.
- The
NCI just began administering the highest child dose possible of BL22,
in the study Killian Owen pioneered, based on analyses of the Atlanta
boy’s preserved cells that found he had been given too small a dose
to work. Later this year, NCI plans the first tests of a more potent
version, HA22, in adults and children simultaneously. The experimental
antibodies bind to a protein on cells of some patients with acute
lymphoblastic leukemia, or ALL, and deliver a cancer-killing toxin.
Killian’s
saga shows why awaiting adult research can backfire: He was given a
fraction of the adult BL22 dose, standard procedure for early pediatric
testing even though children’s faster metabolism often requires a higher
dose, explains Wayne. “Clearly the Owens made progress in opening the
logjam,” for children, he says. “The pendulum is swinging. ... The
problem is it’s never fast enough.”
[Top]
Young
cancer survivors live normally-(Times of India-08/02/2005)
Cancer
does not doom youngsters to a miserable childhood, new research suggests,
finding that after treatment many are just as happy and well adjusted as
those who never had the illness-sometimes even more. The findings based on
interviews with 8-12 year olds, show how resilient youngsters can be even
when facing something as frightening as cancer. The results also indicate
that children's perceptions differ from their parents whose negative
feelings may shade how they think their children are coping. Parents
should be encouraged to know that young survivors can indeed put their
cancer behind them.
90
children were questioned who had been successfully treated for cancer at
least a year earlier, 72 undergoing treatment and a control group of 481
who had never had children. The questions focused on physical issues,
including pain and activity restrictions, psychological functioning
including fear of death, worrying and feeling inferior and outlook on
life, including happiness and optimism. Children undergoing treatment had
lower overall scores than both other groups. But the survivors overall
scores were high, averaging 4.15, slightly above the 4.05 average for the
control group.
[Top]
Child
cancer survivors struggle-(Yahoo News-06/01/2005)
Researchers
find bills and ailments hound those treated in the '70s and '80s. Two
out of three children who beat cancer go on to develop other chronic health
problems, ranging from heart disease to blindness, because of radiation
and other treatments that saved their lives, new research finds. Cancer
treatments have vastly improved in recent years, so today's patients shouldn't
suffer as many future problems, specialists say. Nevertheless,
the research shows the tremendous medical, financial and emotional burdens
that those treated in the 1970s and 1980s are now facing. One
study found that 1 in 10 survivors are saddled with $25,000 in cancer-related
debt.
"We've concentrated
so much on our 5- and 10-year survival that we haven't paid attention
to the impact of our treatments," said Dr. Len Lichtenfeld, deputy
medical director of the American Cancer Society. Indeed,
survival is at an all-time high. More
than 3 out of 4 children are cured of cancer today, up from 58 percent
in 1975. "But
the individuals cured currently pay a large and unacceptable price for
that," said Dr. Harmon Eyre, the cancer society's medical director.
Nearly 10 million
Americans have survived cancer, including 270,000 who were diagnosed when
they were 15 or younger.
[Top]
Childhood cancer can lead to chronic health problems later in life: study-(Yahoo
News- 27/07/2007)
CHICAGO (AFP) - Most children who undergo cancer treatment will develop
one or more chronic health problems later in life due to the illness and
complications from its treatment, a study released Tuesday suggested.
Dutch researchers who conducted a long-term study of more than 1,300
childhood cancer survivors found that 75 percent went on to develop one or
more chronic health conditions by the time they reached their mid 20s, or
early 30s at the latest.
Close to 25 percent had multiple health problems by that point, and
some 40 percent had suffered at least one severe, life-threatening, or
disabling event or condition.The most serious repercussions of their early struggles with cancer
and its treatment with chemicals, radiation and surgery included
secondary cancers, obesity, infertility, neurological problems, and
learning, behavioural and hormonal disorders.The investigators found that children who had been treated for bone tumours had the most health problems to contend with down the road -
far more than kids who beat leukemia or Wilms tumour (a tumor of the
kidney).
Their analysis also showed that radiotherapy, as a stand-alone
treatment, was associated with a much higher disease burden later in
life than either stand-alone chemo or drug therapy or stand-alone
surgery.More than half the children in the study who underwent radiation
treatment had a high or severe burden of illness by the time they were
young adults, compared to 25 percent of patients who had surgery, and
15 percent of kids who got medication only.
That finding may reflect that fact that radiation damages healthy
tissue in addition to zapping cancer cells, which increases the risk
for secondary cancers, according to the lead author of the paper, Huib
Caron, a professor of pediatric oncology at Emma Children's Hospital
in
Amsterdam in the Netherlands.Ultimately, the findings show that early, life-saving interventions
come at a price - one that can take a heavy toll on the survivors'
quality of life, and reduce their life expectancy.The results emphasise the need for ongoing monitoring of young
cancer patients so subsequent problems can be diagnosed and treated
early, the authors said.
[Top]
Pylons
'double child cancer risk'-(BBC News-01/11/2004)
Children living under high-voltage power lines
could run double the risk of getting cancer, new research reportedly
suggests. Those living within 100 metres of the cables are more likely to
suffer from leukaemia, the study indicates. The Childhood Cancer Research
Group at Oxford University studied 70,000 children under 15 for the
Department of Health report, half of whom had cancer. The seven-year study
is reported in the Times and the Independent newspapers.
The research looked at the prevalence of
high-voltage power cables near children's homes. Children born or living
near the power lines were 1.7 times more likely to contract leukaemia than
those in the control group, the research found. Some studies have already
shown an association between some types of electromagnetic fields and
increased childhood leukaemia. Research author Dr Gerald Draper said other
research suggested power lines might account for 20 to 30 of 500 cases of
childhood leukaemia each year. But, he said, his work indicated a far
smaller number of cases were affected. The findings were
"surprising" and prompted further research, he added. The
Department of Health said it would not comment on the findings until Dr
Draper submitted his final report.
[Top]
New
research suggests link between maternal diet and childhood leukemia
risk-(Yahoo News-08/09/2004)
A new study suggests that
eating more vegetables, fruit and protein before pregnancy may lower the
risk of having a child who develops leukemia, the most common childhood
cancer in the United States. "This is the first time researchers have
conducted a systematic survey of a woman's diet and linked it to the risk
of childhood leukemia," said Dr. Kenneth Olden, director of the
National Institute of Environmental Health Sciences, the federal agency
that funded the study. NIEHS is a component of the National Institutes of
Health. The study was conducted by researchers at the University of
California, Berkeley, and the study results are published in the August
2004 issue of Cancer Causes and Control.
Researchers compared 138 women
who each had a child diagnosed with acute lymphoblastic leukemia (ALL)
with a control group of 138 women whose children did not have cancer. The
children of all the women in the study were matched by sex, age, race, and
county of residence at birth. After comparing the women's diets in the 12
months prior to pregnancy, researchers found that the higher the intake of
vegetables, fruit and foods in the protein group, the lower the risk of
having a child with leukemia. One of the more surprising results of the
study is the emergence of protein sources, such as beef and beans, as a
beneficial food group in lowering childhood leukemia risk. "The
health benefits of fruits and vegetables have been known for a long
time," said principal investigator Gladys Block, professor of
epidemiology and public health nutrition at U.C. Berkeley. "What we
found in this study is that the protein foods group is also very
important."
The researchers looked further
and found that glutathione was the nutrient in the protein group with a
strong link to lower cancer risk. Glutathione is an antioxidant found in
both meat and legumes, and it plays a role in the synthesis and repair of
DNA, as well as the detoxification of certain harmful compounds. Within
the fruit and vegetable food groups, certain foods - including carrots,
string beans and cantaloupe - stood out as having stronger links to lower
childhood leukemia risk. The researchers point to the benefits of
nutrients, such as carotenoids, in those foods as potential protective
factors. National guidelines recommend that people eat at least five
servings of fruits and vegetables every day, and two to three servings of
foods from the protein group.
"Fetal exposure to
nutritional factors has a lot to do with what mom eats," said
Christopher Jensen, a nutritional epidemiologist at U.C. Berkeley and lead
author of the paper. "These findings show how vital it is that women
hoping to get pregnant, as well as expectant moms, understand that
critical nutrients in vegetables, fruit and foods containing protein, such
as meat, fish, beans and nuts, may protect the health of their unborn
children."
The few studies that have been
conducted on maternal diet and childhood cancer risk looked only at
specific foods or supplements, and results have been mixed. This study is
the first attempt to capture a woman's overall dietary pattern - using a
76-food-item questionnaire - and its relationship to the development of
leukemia in a child. Researchers also studied the use of vitamin
supplements, but did not find a statistically significant link to
childhood leukemia risk. A growing number of scientists believe that
genetic changes linked to cancer later in life begin in the womb. "It
goes back to the old saying to expectant mothers, 'You're eating for
two,'" said co-author Patricia Buffler, U.C. Berkeley professor of
epidemiology and head of the federally funded Northern California
Childhood Leukemia Study. "We're starting to see the importance of
the prenatal environment, since the events that may lead to leukemia are
possibly initiated in utero. Leukemia is a very complex disease with
multiple risk factors. What these findings show is that the nutritional
environment in utero could be one of those factors."
[Top]
Fuel
Stations May Pose Child Cancer Risk -Study-(Reuters-18/08/2004)
Living near a fuel station may
quadruple the risk of acute leukemia in children, research published on
Thursday showed 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, showed the research,
published in the Occupational and Environmental Medicine journal.
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, say the researchers. 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 authors say. 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, the
research showed.
[Top]
Boy
inspires cancer video game-(Yahoo News-10/07/2004)
A
nine-year-old boy with leukaemia has inspired a video game to help
children understand and deal with cancer. In
many ways, Ben Duskin is a typical American nine-year-old, playing video
games whenever time, or his mother, will allow. But Ben is also unusual,
because he is able to say he has designed one of his very own. When Ben
was five, he was diagnosed with leukaemia, and his mother tried to explain
his treatment by likening it to the classic Pac Man video game, gobbling
up the bad cancer cells. But the problem was that Ben had never played Pac
Man, and so he decided a new game was needed for children with cancer, to
help them understand and deal with their illness.
He put this request to the Make a Wish
charity in San Francisco, causing them a great deal of heartache,
according to the head of the office, Patricia Wilson. "Some people
almost laughed when I presented the request," she told the BBC
programme Go Digital, "just saying do you understand what you're
asking for? This is not possible, this is millions of dollars. This will
take several years in the development." Just
when it seemed Ben's wish was too much to ask for, someone stepped forward
and offered to make it happen. That person was Eric Johnston, a programmer
with LucasArts video games. He worked with Ben every week over the months
to create the game just how the boy wanted it.
"Ben knew about the different side
effects he wanted to portray in the game," said Mr Johnston. "He
knew there would be attributes that the player would have - health from
the hospital, ammo from the pharmacy and attitude, which you get from
home. And as you go through the game you hit some setbacks - electrified
barriers - which makes you lose some attitude, which according to Ben is
pretty much how it works."
The free game, which shows Ben whizzing
around the screen on his skateboard, has already been downloaded more than
35,000 times. Eric and Ben have
received messages from hundreds of people including doctors and game
designers. According to Ben, the most important people are the
children who are in the position he was once in. For
that reason he and Eric wanted to keep the game quite simple, so that even
young children can play and understand it.
The player faces monsters representing the
side effects of cancer. A fever monster throws fireballs, a giant, evil
chicken represents chicken pox and a robot called Robarf hurls a green
gooey mess - the sickness most children with cancer will face. While
they can be battered by the monsters and have to use up some of their
health to destroy the cancer cells, the player cannot be killed off in the
game. Ben insisted on this, in order to send a clear message to other
children. "I just want them to
learn what the medicine is doing to their body and how it's helping
it," he explained. "And I hope that they'll learn not to give
up, to stick with it or you won't make any progress. And to just hang in
there and have fun."
To play Ben's Game, go to www.makewish.org/ben
where you can download the game, as well as read messages from Ben and
find out more about the project.
[Top]
No
Strong Link Between Parents' Jobs, Kids' Cancer-(Reuters
Health-25/12/2003)
A large UK study
has failed to find strong evidence tying parents' on-the-job exposures
to radiation and chemicals to their children's risk of cancer. Researchers
did find, however, a slightly higher risk of leukemia among the children
of men exposed to vehicle exhaust fumes at work--including drivers of
buses, cabs and delivery trucks. The investigators say more research is
needed to establish a cause-and-effect relationship, and, if there is
one, to figure out the specific chemicals involved. The new findings are
from the UK Childhood Cancer Study (UKCCS), which was set up more than
a decade ago to investigate the causes of cancers such as leukemia and
brain tumors in children. There has been concern that parents' occupational
exposure to potentially cancer-causing substances around the time of conception
or during pregnancy could promote cancer in their children. But studies
have so far yielded conflicting results. The new findings, reported in
the December issue of Occupational & Environmental Medicine, do not establish
a link between childhood cancer and parents' exposure to radiation, chemicals
such as pesticides, or other exposures such as electromagnetic fields.
"The findings of
the UKCCS failed to produce any strong evidence to link exposures experienced
by mothers or fathers during their work with an increased risk of childhood
cancer," the investigators, led by Dr. Patricia A. McKinney of the University
of Leeds, said in a statement. One exception was the link between fathers'
on-the-job exposure to exhaust fumes around the time of conception and
a "small increased risk" of childhood leukemia. "However," McKinney and
her colleagues said, "the data do not allow the identification of any
specific chemicals, and other explanations of the link cannot be ruled
out." In their report, the researchers note that there's no known mechanism
by which fathers' exposure to vehicle exhaust might promote leukemia in
their children. It's possible, they speculate, that benzene, a chemical
found in vehicle emissions, could damage sperm in a way that would promote
leukemia in the father's children. High levels of benzene in the workplace
have been tied a higher risk of leukemia among workers. But, McKinney
and her colleagues point out, there's been no published research on the
potential effects of a father's exposure to traffic pollution on the health
of his children.
[Top]
Childhood
Cancer Survivors Rate Their Health-(ET-22/12/2003)
Nearly 90% of adult
survivors of childhood cancer believe that, overall, they are in very
good health, according to a recently published study - yet almost half
of the group also reported having had at least one significant health
problem develop since cancer treatment ended. Study authors urged the
primary care doctor caring for an adult survivor of childhood cancer to
watch for and promptly treat certain health issues common to these patients.
"These findings help characterize the high-risk childhood cancer survivor
who is more likely to require intervention to optimize long-term health
outcomes, " wrote Melissa Hudson, MD, et al. in the Journal of the American
Medical Association (Vol. 290, No.12: 1583-1643). About 270,000 childhood
cancer survivors live in the US today, according the National Cancer Institute.
"The majority of
survivors are resilient. They move on with life and adapt to chronic health
problems if they occur," said lead author Melissa Hudson, MD, of St. Jude's
Children's Research Hospital, in Memphis, Tenn. However, some survivors
are more likely than others to develop significant physical or mental
health problems, she found, depending on personal characteristics and
the type of cancer they experienced. Health problems were more common
among women survivors, among those with less than a high school education,
and among those with a household income lower than $20,000. On the flip
side, leukemia survivors were less likely to report a subsequent health
problem than were survivors of other forms of cancer, such as bone cancer,
central nervous system tumors, sarcomas, and Hodgkin disease.
For this study, 9,535
survivors, ages 18-48, completed a detailed questionnaire as part of the
ongoing Childhood Cancer Survivor Study (CCCS). For comparison purposes,
2,916 siblings did the same, except that they didn't have to answer cancer-related
questions. Hudson and colleagues specifically looked for answers that
dealt with six aspects of health: general health, mental health, functional
status, activity limitations, cancer-related pain, and cancer-related
anxiety/fears. They found survivors more likely to report poor general
health than siblings - 10.9% compared with 4.9% - and more likely to report
mental health issues - 17.2% vs. 10.2%. Some degree of functional impairment
- an inability to care for oneself and/or go to work or school - was reported
by 12% of survivors and 2.5% of siblings.
Lingering cancer-related
anxiety was significantly higher for survivors of Hodgkin disease, sarcomas,
and bone cancer. One reason, Hudson suggests, is that these conditions
are more common in teenagers than in children. The survivors, then, were
old enough during treatment to fully understand they had a serious, life-threatening
disease, knowledge that led to anxiety in some. Hodgkin disease survivors
were more likely to report poor general health than any group except survivors
of central nervous system cancers, such as brain tumors, who may have
severe mental impairment. Yet the Hodgkin survivors had the least trouble
functioning at work, school, or home. Schwartz noted that many Hodgkin
disease survivors report fatigue, which could explain their perception
of poor health. Hudson et al. suggest that lingering anxiety could play
a role as well. "Maybe it's misinformation that causes the anxiety, or
survivors may not have gotten a full explanation of what to expect for
the future," said Hudson. "They don't know whether to be afraid or reassured."
"One thing that helps is when a physician takes the time to fully explain
the health risks a survivor may face," said Hudson.
To take control of
their health and future, Hudson says survivors should request detailed
reports on the therapy they received as children, including specific medicines.
They should give copies to their current doctor, or better yet, a cancer
survivor's follow-up clinic. The reports become doubly important as the
CCSS and other studies produce new information about which treatments
might be linked to delayed or hidden health problems. Such information
can save lives, according to Schwartz, who directs a program at Johns
Hopkins Medical Center that sends health updates to patients who've grown
up and changed doctors. "We had one woman who, within a week of receiving
our newsletter, was getting a heart bypass," Schwartz recalled. The woman
had complained of chest pains to her doctor in Washington State, but was
told she was too young to have heart problems -- until her doctor read
the survivor newsletter?. "We're not done taking care of them when the
treatment is over," she said.
So why do most childhood
cancer survivors report being in good overall health - even if they have
experienced significant health problems? It "may reflect an enhanced appreciation
of life after therapy, despite adverse effects on actual health status,"
Schwartz wrote in the editorial. "It may be related to a belief in a higher
power, some greater insight or emotional maturity caused by the cancer
experience," suggested Hudson. "The article tells us that overall life
is good, survival is worth it, and they have many, many years of good
life ahead of them,| said Schwartz. "We can say there are 9,000 young
adult survivors in this study and most have normal lives: They marry,
have children, and hold down jobs. That's what you can expect."
[Top]
Breakthrough
discovery offers hope to cancer-suffering kids-(Yahoo News-10/08/2004)
Scientists at the Children's
Cancer Institute in Australia have made a discovery that could improve the
survival rates of hundreds of children suffering from cancer. The
researchers have identified a compound that allows resistant cancer cells
in children with neuroblastoma to be destroyed with chemotherapy.
Associate Professor Murray Norris said the study showed that cancer
patients responded poorly to chemotherapy due to high levels of a gene
called MRP1 in their tumour cells. MRP1 acts like a vacuum cleaner inside
cancer cells by preventing chemotherapy drugs from getting in and
destroying them and effectively protecting the rogue cells.
Researchers said that the new
compound, tentatively named 4H10, made the cancer cells sensitive to
chemotherapy again by blocking the action of the MRP1 gene. "This
study is a significant one. This gene is one of the major factors
contributing to these children doing so poorly," news.com quoted
Norris as saying. However, another
associate Professor David Ashley, from the Royal Children's Hospital said
that he was concerned the research had not yet been subjected to peer
review. "The strongest I think you can say is that it could be
potentially helpful," added Ashley.
[Top]
Birth
month and brain cancer risk link, new research- (Yahoo News- 16/08/2004)
According to new research, the
month you were born in could affect your chances of developing brain
cancer later in life. After studying data on adults with and without brain
cancer, the researchers found that people born in January and February had
the highest risk while those born in July or August had the lowest. The
link was even stronger with left-handed or ambidextrous people born in the
winter (northern hemisphere). Lead researcher Dr. Alina Brenner, National
Cancer Institute, Bethesda, Maryland, USA, said it is too early to be sure
of this link – all could be just due to chance.
Scientists know little about
the early causes of brain tumors. The scientists in this study wanted to
find out if there were any new clues. If
the association between birth month and brain cancer risk is real, and
this could be confirmed by a new ongoing study, then researchers could
look into the reason why. The researchers said factors such as infections,
maternal diet, environmental toxins and hormone influences (during
pregnancy) could be playing a part. We have no idea whether any of these
factors is playing a part, they say. We don’t even know when, during the
pregnancy, these factors may be more critical.
The scientists studied 686
patients with brain cancer and 799 people who had been hospitalized for
other conditions (they did not have brain cancer). The patients came from
three different hospitals in the USA. They found that winter babies were
at higher risk of developing brain cancer, diseases affecting the nervous
system, epilepsy, schizophrenia.
[Top]
Prenatal
Vitamin Use May Protect Child from Cancer (Reuters Health-28/08/2002)
Women who take vitamin
and mineral pills before and during pregnancy may reduce the risk that
their baby will develop a cancer of the nervous system called neuroblastoma,
according to researchers. Neuroblastomas are highly malignant tumors that
arise in nervous system tissue and are usually diagnosed in infants or
young children. The tumors spread rapidly to the lymph nodes, liver, lung
and bone."In the United States, neuroblastoma has an incidence of 9.1
per million children under the age of 15 years and is the most common
tumor in infants," Andrew F. Olshan of the Children's Oncology Group in
Arcadia, California, and colleagues note in their report.Many studies
have shown that regular vitamin use by moms-to-be can reduce the risk
of birth defects such as spina bifida and cleft palate.
One previous study
also suggested that women who use vitamins while pregnant may reduce their
child's risk of developing neuroblastoma. To investigate, Olshan and colleagues
interviewed 538 women, each with a child who developed neuroblastoma before
the age of 19, about their vitamin and mineral use. The women were compared
with 504 mothers whose children did not have the disease.
"Daily vitamin and
mineral use in the month before pregnancy and in each trimester was associated
with a 30% to 40% reduction in the risk of neuroblastoma," the authors
write in the September issue of the journal Epidemiology. "We were unable
to isolate the effects of specific vitamins or minerals," they add. The
researchers are calling for more research on the relationship between
a pregnant woman's vitamin use and her child's neuroblastoma risk.
[Top]
New
Hope for Kids With Bone Cancer-(HealthScoutNews-10/01/03)
Italian surgeons
who reconstructed a young cancer patient's hip by using a combination of
the patient's thighbone and a donor bone graft report the new joint is
still doing well more than four years later. Writing in a research letter
in tomorrow's issue of The Lancet, Dr. Marco Manfrini from the Rizzoli
Orthopaedic Institute in Bologna and his colleagues describe the procedure
that was done. The girl was 4 years old when she came to their attention
in mid-1997 with a diagnosis of Ewing's sarcoma, a bone tumor. The cancer
extended from the upper part of her femur, or thighbone, which makes up
the "ball" part of the hip's "ball and socket"
anatomy, to the middle of her thighbone. Today, the girl has full hip
mobility and can attend school, ride an exercise bike, swim and walk
without canes at home. She also has no discrepancies in limb lengths.While
surgeons have previously reconstructed other skeletal segments lost to
cancer, the Italian authors note that "no limb-salvage techniques
have been described for hip reconstruction in this age group."
Ewing's tumor, also
called Ewing's sarcoma, most often occurs in children and adolescents
between the ages of 10 and 20. Bone tumors, the growth of abnormal cells
in the bones, can be cancerous or not; Ewing's is cancerous. It most often
develops in the arms or legs but can occur in any bone. Symptoms include
pain and swelling. Treatment typically involves a combination of surgery,
radiation and chemotherapy, with amputation or reconstruction also done.
About 60 percent are cured.
Manfrini and his
team first removed some of the girl's cancerous thighbone and then
transplanted her calf bone, keeping the blood supply intact, to create a
new thigh bone. This transplant was inserted into a large piece of donor
thighbone that was cut and shaped to fit. The new construction was held in
place with small screws and a long titanium plate. Main muscles were all
reattached to the newly fashioned joint. After four months, the girl
exercised on a stationary bike, and by nine months she had active movement
of the hip. At the time of the report, four years and five months after
the reconstruction, the girl is disease-free, the authors note. The graft
grew lengthwise and cross-sectionally. The head of the thighbone also
grew. The researchers did a medical literature search and did not find any
reports of the type of reconstruction they did in large joints of the
lower limb.
The report is
called "fascinating" by a medical oncologist familiar with the
problem of Ewing's sarcoma. "It's a remarkable kind of
treatment," says Dr. Herman Kattlove, a medical oncologist and
medical editor for the American Cancer Society. "What they did is
almost miraculous. They had to keep the blood supply intact. The surgeons
must be very skilled." However, he adds a caveat: "We need to
wait and see how it all turns out. I suspect she will need a hip
replacement when she becomes full size. But still, she has a functioning
leg for now and that is a plus." And hip replacement surgery, these
days, is routinely done, he says.
[Top]
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