Zemelen van rijst tegen darmkanker.
Uit een Engelse laboratoriumstudie blijkt dat zemelen van rijst het ontstaan van kankercellen in de darmen wel met 50% kunnen reduceren. Geen effecten werden gezien tegen prostaat- of borstkanker. De resultaten, weliswaar in het laboratorium, werden waargenomen bij voor mensen vergelijkbare hoeveelheid van 200 gram zemelen per dag. Verder onderzoek is nodig als ook naar de mogelijke effecten van zemelen van bijv. tarwe en haver.
University
Of Leicester Research Reveals Rice Bran Could Reduce Risk Of Intestinal Cancer
Report
in British Journal of Cancer provides preclinical evidence on possible
health benefits of rice bran.
A study by biomedical scientists at the University of Leicester has revealed for
the first time that rice bran could reduce the risk of intestinal cancer.
The research in the University's Department of Cancer Studies and Molecular
Medicine has not been tested on humans, but research in the laboratory has
produced promising results.
The research has been published in the British Journal of Cancer.
The results of a controlled laboratory study in a preclinical model of
gastrointestinal adenoma demonstrated that consumption of a high daily dose of
stabilized rice bran caused an average 51% reduction in the number of
precancerous adenomas in the intestinal tract.
Professor Andreas Gescher of the University of Leicester in the UK, the
principal investigator, said:
"We compared the cancer-preventive efficacy of rice bran with respect to
prostate, breast and intestinal cancers. Whilst there was no effect of rice bran
on the development of prostate or breast cancer, rice bran significantly
retarded the development of intestinal adenomas. The effect was dependent on the
fibre content of the bran. The dose we used translates into approximately 200g
rice bran per day in humans. We believe a promising area of future research
would be to study the potential colorectal cancer-preventing properties of
stabilized rice bran.
"It is known that bran from wheat and rye have anti-cancer properties but
this is the first time that this has been shown for rice bran. It appears that
rice bran may have a role to play in reducing the development of adenomas, which
can be a pre-cursor to cancer. No one has compared the efficacy of the different
brans, such as rice, wheat, rye or oat and this may be an interesting future
direction for researchers."
The stabilized rice bran used in the study was NutraCea Stabilized Rice Bran
Regular and NutraCea RiSolubles(R), both produced by NutraCea in the U.S. (April 2007)