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Naturally-occurring apple compounds reduce risk of pancreatic cancer
October 04, 2007Smokers benefit most from intake of 'hidden' plant nutrients
Eating flavonol-rich foods like apples may help reduce the risk of pancreatic cancer, says a team of international researchers. Quercetin, which is found naturally in apples and onions, has been identified as one of the most beneficial flavonols in preventing and reducing the risk of pancreatic cancer. Although the overall risk was reduced among the study participants, smokers who consumed foods rich in flavonols had a significantly greater risk reduction.
This study, published in the October 15 issue of the American Journal of Epidemiology, is the first of its kind to evaluate the effect of flavonols - compounds found specifically in plants - on developing pancreatic cancer. According to the research paper, "only a few prospective studies have investigated flavonols as risk factors for cancer, none of which has included pancreatic cancer. "
Researchers from Germany, the Univ. of Hawaii and Univ. of Southern California tracked food intake and health outcomes of 183,518 participants in the Multiethnic Cohort Study for eight years. The study evaluated the participants' food consumption and calculated the intake of the three flavonols quercetin, kaempferol, and myricetin. The analyses determined that flavonol intake does have an impact on the risk for developing pancreatic cancer.
The most significant finding was among smokers. Smokers with the lowest intake of flavonols presented with the most pancreatic cancer. Smoking is an established risk factor for the often fatal pancreatic cancer, notes the research.
Among the other findings were that women had the highest intake of total flavonols and seventy percent of the flavonol intake came from quercetin, linked to apple and onion consumption.
It is believed that these compounds may have anticancer effects due to their ability to reduce oxidative stress and alter other cellular functions related to cancer development.
"Unlike many of the dietary components, flavonols are concentrated in specific foods rather than in broader food groups, for example, in apples rather than in all fruit," notes the research study. Previously, the most consistent inverse association was found between flavonols, especially quercetin in apples and lung cancer, as pointed out in this study. No other epidemiological flavonol studies have included evaluation of pancreatic cancer.
While found in many plants, flavonols are found in high concentrations in apples, onions, tea, berries, kale, and broccoli. Quercetin is most plentiful in apples and onions.
U.S. Apple Association
Researchers from Germany, the Univ. of Hawaii and Univ. of Southern California tracked food intake and health outcomes of 183,518 participants in the Multiethnic Cohort Study for eight years. The study evaluated the participants' food consumption and calculated the intake of the three flavonols quercetin, kaempferol, and myricetin. The analyses determined that flavonol intake does have an impact on the risk for developing pancreatic cancer.
The most significant finding was among smokers. Smokers with the lowest intake of flavonols presented with the most pancreatic cancer. Smoking is an established risk factor for the often fatal pancreatic cancer, notes the research.
Among the other findings were that women had the highest intake of total flavonols and seventy percent of the flavonol intake came from quercetin, linked to apple and onion consumption.
It is believed that these compounds may have anticancer effects due to their ability to reduce oxidative stress and alter other cellular functions related to cancer development.
"Unlike many of the dietary components, flavonols are concentrated in specific foods rather than in broader food groups, for example, in apples rather than in all fruit," notes the research study. Previously, the most consistent inverse association was found between flavonols, especially quercetin in apples and lung cancer, as pointed out in this study. No other epidemiological flavonol studies have included evaluation of pancreatic cancer.
While found in many plants, flavonols are found in high concentrations in apples, onions, tea, berries, kale, and broccoli. Quercetin is most plentiful in apples and onions.
U.S. Apple Association
Pancreatic Cancer Current Events and Pancreatic Cancer News RSSAfrican-Americans with colorectal cancer have poorer outcomes, lower survival rates
New research published in the November issue of the Journal of the American College of Surgeons shows that African-American patients with colorectal cancer are more likely to be diagnosed with advanced disease and are less likely to undergo surgical procedures compared with Caucasians, suggesting that improvements in screening and rates of operation may reduce differences in colorectal cancer outcomes for African-Americans.
Discovery offers potential new pancreatic cancer treatment
Tiny particles that can carry drugs and target cancer cells may offer treatment hope for those suffering with pancreatic cancer. New research to be presented in November at the American Association of Pharmaceutical Scientists (AAPS) Annual Meeting in Los Angeles reveals that tumor-penetrating microparticles (TPM) have been specifically designed to break through hard-to-infiltrate barriers and deliver drugs more effectively and efficiently than the standard form of chemotherapy such as those injected through a vein.
Hepatitis B does not increase risk for pancreatic cancer
A Henry Ford Hospital study found that hepatitis B does not increase the risk for pancreatic cancer - and that only age is a contributing factor.
M. D. Anderson examines use of toad venom in cancer treatment
Huachansu, a Chinese medicine that comes from the dried venom secreted by the skin glands of toads, has tolerable toxicity levels, even at doses eight times those normally administered, and may slow disease progression in some cancer patients, say researchers from The University of Texas M. D. Anderson Cancer Center.
Pancreatic cancer: Researchers find drug that reverses resistance to chemotherapy
For the first time researchers have shown that by inhibiting the action of an enzyme called TAK-1, it is possible to make pancreatic cancer cells sensitive to chemotherapy, opening the way for the development of a new drug to treat the disease.
Endothelin-1 inhibitors in chronic pancreatitis
Fibrosis is a key feature of chronic pancreatitis and pancreatic cancer. The extensive deposition of extracellular matrix proteins fosters the development of an exocrine and endocrine organ insufficiency, and accelerates progression of the tumour.
Autoimmune response can induce pancreatic tumor rejection
Immune responses are capable of killing tumors before they can be directed toward normal body tissue, according to new scientific findings published in Cancer Research, a journal of the American Association for Cancer Research.
MicroRNAs circulating in blood show promise as biomarkers to detect pancreatic cancer
A blood test for small molecules abnormally expressed in pancreatic cancer may be a promising route to early detection of the disease.
Blood-flow metabolism mismatch predicts pancreatic tumor aggressiveness
Researchers from Turku, Finland, have identified a blood-flow glucose consumption mismatch that predicted pancreatic tumor aggressiveness, according to results of a study published in Clinical Cancer Research, a journal of the American Association for Cancer Research.
Taking the Needle's Sting Out of Diabetes
Found in 30% of all human cancer tumors, the Ras protein literally "drives cells crazy," says Prof. Yoel Kloog, the dean of the Faculty of Life Sciences at Tel Aviv University. Prof. Kloog was the first in the world to develop an effective anti-Ras drug against pancreatic cancer, currently in clinical trials.
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