Kyle J. Norton
Phytic acid, an organic compound found much in healthy food sources may have a potential effect in reducing risk and treatment of colorectal cancer, some studies suggested.
Foods containing high levels of phytic acid including nuts, sesame seeds, soybeans, wheat, pumpkin, beans, almonds,...
Colorectal cancer also known as bowel cancer, is a medical and chronic condition characterized by the abnormal proliferation of cells in the colon, rectum, or vermiform appendix due to the alternation of DNA with unidentified origin.
Colorectal cancer (CRC) is a relatively very common cancer in the Western world. The cancer is considered a slowly growing and progressing cancer in a predictable way.
Bowl is divided into 2 parts, the first part of the bowel, the small bowl, is involved with the digestion and absorption of food, and the 2nd part, the large bowel which consists of the colon and rectum, is involved in the absorption of water from the small bowel contents and broken down of certain materials in the feces into substances of which some of them to be reabsorbed and reused by the body.
Why colorectal cancer is more susceptible to the West than other parts of the world. Some researchers suggested it may be a result of the Western diet. People who a diet with high saturated and trans fats, red meat, processed foods, fewer fruits and vegetables, and whole grains are associated with a substantially higher risk of colorectal cancer, compared to the traditional diet.
Dr. Alan Moss, the lead author in the cancer program at The University of Melbourne, a diet that contains high levels of red meat is associated with the risk of CRC.
The risk of colorectal is increased proportionally to the increased intake of red meat. In other words, the redder consumed the higher the risk of CRC.
And, processed meats result from salting, smoking, fermenting, or curing the meat, and common examples include ham, bacon, and sausage are also on the list of elevated risk of colorectal cancer.
In the comparison of the “Western” and “prudent” dietary patterns on the incidence of CRC, researchers showed that people who follow the Western diet have a 31% increased risk of the disease onset, compared to a 14% reduced risk of CRC in people who follow the prudent diet with high fruits and vegetables, fewer red meat and processed foods.
These results suggested, regardless to present the colorectal cancer risk, a change of diet pattern today, your risk the cancer is continuously lower, compared to before the change.
Dr, Shafie NH, the lead scientist in the researchers at the cancer program team at the Universiti Putra Malaysia in the examine whether phytic acid, a natural dietary ingredient and an essential component of nutritional diets affect colorectal cancer risk showed that
* Phytic acid exerted a strongly inhibitory colorectal cancer activity by increasing the function of proteins (up-regulation of Bax)associated with program cell death and (down-regulation of Bcl-xl) anti-cancer cell proliferation.
* Furthermore, when exposed to IP6 (phytic acid), the phytochemical up-regulates of caspase-3 and -8 expressions and activation of both caspases may also contribute to the apoptotic cell death of human colorectal adenocarcinoma HT-29 cells.
The results suggested, combined with t rice bran IP6 (phytic acid) induced apoptosis, by regulating the pro- and anti-apoptotic markers.
Moreover, in the reaffirming the significant role of phytic acid in the inhibition of colorectal cancer, Dr. Saad N, the team leader, and colleagues launched an investigation of expression changes of β-catenin and cyclooxygenase-2 (COX-2) and cell proliferation in the adenoma-carcinoma sequence after treatment with rice bran PA by immunocytochemistry.
The experiment includes a total of 72 male Sprague-Dawley rats divided into 6 equal groups with 12 rats in each group.
Cancer induction by two intraperitoneal injections of azoxymethane (AOM) was given at 15 mg/kg body weight over a 2-week period. During the post-initiation phase, two different concentrations of PA, 0.2% (w/v) and 0.5% (w/v) were administered in the diet.
Before treatment with PA, rats-induced cancer showed that β-catenin, a marker of alternation of gene transcription, COX-2 expressions associated with cancer cells proliferation, and cell proliferation of Ki-67 associated to a significant contribution in colonic cancer progression.
And, a significant positive expression and correlation were found between COX-2 expression and proliferation and the total β-catenin also demonstrated a significant positive linear relationship with total COX-2.
After the application of phytic acid, researchers found that the expression changes of β-catenin and cyclooxygenase-2 (COX-2) and cell proliferation in the adenoma-carcinoma sequence were totally inhibited by rice bran PA.
Taken together, there is no doubt that phytic acid can be considered a functional supplement in the prevention of colorectal cancer and combined with primary therapy for the treatment of the disease without inducing any side effects.
However, further data collection large example size and multi-centers studies performed with human consumption of the whole food or its bioactive compounds during the course of the disease will be necessary to complete the picture of phytic acid anti-colorectal cancer possibilities.
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Author Biography
Kyle J. Norton (Scholar, Master of Nutrition, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published online, including worldwide health, ezine articles, article base, health blogs, self-growth, best before it's news, the Karate GB Daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as the international journal Pharma and Bioscience, ISSN 0975-6299.
References
(1) Pro-Apoptotic Effect of Rice Bran Inositol hexaphosphate (IP6) on HT-29 Colorectal Cancer Cells by Shafie NH, Esa NM, Ithnin H, Saad N, Pandurangan AK. (PubMed)
(2) Suppression of β-catenin and cyclooxygenase-2 expression and cell proliferation in azoxymethane-induced colonic cancer in rats by rice bran-phytic acid (PA) by Saad N, Esa NM, Ithnin H.(PubMed)
(3) The Association Between Diet and Colorectal Cancer Risk: Moving Beyond Generalizations by Alan Moss and Kumanan Nalankilli (Gastroenterology)
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