switcher
2006-04-27 06:43:11 UTC
sinds in canada en de VS het brood verrijkt wordt met B9 is het aantal
openruggetjes GEHALVEERD....
there is good evidence that extra folate in the diet greatly cuts the
risk for having children with neural tube defects such as spina bifida.
maar aan de andere kant zegt men nu: lage B9 is goed tegen darmkanker ...
MAAR DAN WEL NIET VOOR ZWANGERE VROUWEN ...
men is weer een cultuur voor uitgemergelde artiesten aan het promoten ...
(van vitacost.com mail)-
Wednesday, April 26, 2006
Low Folate Levels Could Cut Colon Cancer Risk
The surprising finding has experts urging caution
By Amanda Gardner
HealthDay Reporter
(HealthDay News) -- Conventional wisdom has indicated that high levels
of folate cut risks for colorectal cancer, but a new study suggests low
levels may do the trick, too.
Folate is a B vitamin found in fruits such as bananas and oranges, leafy
green vegetables, asparagus, broccoli, liver, and many types of beans
and peas.
Outside experts called the findings intriguing but preliminary,
stressing that caution needs to be exercised when interpreting the
conclusions.
"In a lot of ways, it's counterintuitive, but it may have validity,"
said Dr. Howard Manten, an associate professor of medicine and
pediatrics at the University of Miami Miller School of Medicine. "We
need confirmatory studies."
"It's an interesting study, but with relatively small numbers of
patients," added Dr. Jay Brooks, chairman of hematology/oncology at
Ochsner Health System in Baton Rouge, La.
This advice does not necessarily pertain to pregnant women, he added,
since there is good evidence that extra folate in the diet greatly cuts
the risk for having children with neural tube defects such as spina
bifida.
Indeed, folic acid has long been known for its effect on reducing
certain birth defects when taken in sufficient quantities by pregnant
women. That was the rationale behind the U.S. Food and Drug
Administration's 1998 order for folic-acid fortification of enriched
grain products such as cereals and breads. Canada made fortification
mandatory that same year.
According to the study, which appears in the April 25 online issue of
Gut, there are also initiatives now in Europe to fortify food with
folate.
Previous research had found that folate might protect against colorectal
cancer. But many of those studies had looked at dietary intake rather
than how much folate was circulating in the body, the authors stated.
In the current study, the biggest-ever prospective look at circulating
levels of folate and colorectal cancer risk, researchers at Umea
University, Sweden, looked at 226 people with colon cancer and 437
controls from the Northern Sweden Health and Disease Cohort.
Participants completed questionnaires on lifestyle, including diet, and
also submitted blood samples for analysis.
People with either the lowest or highest levels of circulating folate
were the least likely to develop bowel cancer, the researchers found.
Those in the middle were almost twice as likely to develop the disease.
People with a common mutation in the MTHFR gene, which lowers a person's
circulating folate levels, also had a lower risk of developing the
cancer.
There was no apparent link between homocysteine, an amino acid which may
play a role in atherosclerosis, and folate. B vitamins, including
folate, tend to keep homocysteine levels down.
If nothing else, the findings should make people think twice before they
supplement their diet with large amounts of any one nutrient.
"The study shows us that before we start adding extra things into our
diet, we may want to really study them carefully, as we may be doing
more harm than good," Brooks said.
More information
To learn more about folic acid, visit the American Dietetic Association.
openruggetjes GEHALVEERD....
there is good evidence that extra folate in the diet greatly cuts the
risk for having children with neural tube defects such as spina bifida.
maar aan de andere kant zegt men nu: lage B9 is goed tegen darmkanker ...
MAAR DAN WEL NIET VOOR ZWANGERE VROUWEN ...
men is weer een cultuur voor uitgemergelde artiesten aan het promoten ...
(van vitacost.com mail)-
Wednesday, April 26, 2006
Low Folate Levels Could Cut Colon Cancer Risk
The surprising finding has experts urging caution
By Amanda Gardner
HealthDay Reporter
(HealthDay News) -- Conventional wisdom has indicated that high levels
of folate cut risks for colorectal cancer, but a new study suggests low
levels may do the trick, too.
Folate is a B vitamin found in fruits such as bananas and oranges, leafy
green vegetables, asparagus, broccoli, liver, and many types of beans
and peas.
Outside experts called the findings intriguing but preliminary,
stressing that caution needs to be exercised when interpreting the
conclusions.
"In a lot of ways, it's counterintuitive, but it may have validity,"
said Dr. Howard Manten, an associate professor of medicine and
pediatrics at the University of Miami Miller School of Medicine. "We
need confirmatory studies."
"It's an interesting study, but with relatively small numbers of
patients," added Dr. Jay Brooks, chairman of hematology/oncology at
Ochsner Health System in Baton Rouge, La.
This advice does not necessarily pertain to pregnant women, he added,
since there is good evidence that extra folate in the diet greatly cuts
the risk for having children with neural tube defects such as spina
bifida.
Indeed, folic acid has long been known for its effect on reducing
certain birth defects when taken in sufficient quantities by pregnant
women. That was the rationale behind the U.S. Food and Drug
Administration's 1998 order for folic-acid fortification of enriched
grain products such as cereals and breads. Canada made fortification
mandatory that same year.
According to the study, which appears in the April 25 online issue of
Gut, there are also initiatives now in Europe to fortify food with
folate.
Previous research had found that folate might protect against colorectal
cancer. But many of those studies had looked at dietary intake rather
than how much folate was circulating in the body, the authors stated.
In the current study, the biggest-ever prospective look at circulating
levels of folate and colorectal cancer risk, researchers at Umea
University, Sweden, looked at 226 people with colon cancer and 437
controls from the Northern Sweden Health and Disease Cohort.
Participants completed questionnaires on lifestyle, including diet, and
also submitted blood samples for analysis.
People with either the lowest or highest levels of circulating folate
were the least likely to develop bowel cancer, the researchers found.
Those in the middle were almost twice as likely to develop the disease.
People with a common mutation in the MTHFR gene, which lowers a person's
circulating folate levels, also had a lower risk of developing the
cancer.
There was no apparent link between homocysteine, an amino acid which may
play a role in atherosclerosis, and folate. B vitamins, including
folate, tend to keep homocysteine levels down.
If nothing else, the findings should make people think twice before they
supplement their diet with large amounts of any one nutrient.
"The study shows us that before we start adding extra things into our
diet, we may want to really study them carefully, as we may be doing
more harm than good," Brooks said.
More information
To learn more about folic acid, visit the American Dietetic Association.
--
een appeltje te schillen met http://applefaulty.be
http://users.fulladsl.be/spb13810/bwnl.htm
Breng je iMac G5 terug (ik wil binnen 2 jaar geen defecte 2de hands Apple kopen)
http://www.apple.com/nl/support/imac/repairextensionprogram/
een appeltje te schillen met http://applefaulty.be
http://users.fulladsl.be/spb13810/bwnl.htm
Breng je iMac G5 terug (ik wil binnen 2 jaar geen defecte 2de hands Apple kopen)
http://www.apple.com/nl/support/imac/repairextensionprogram/