
Prevention of carcinogenesis by tea polyphenols – Science


“People who smoke marijuana–even heavy, long-term marijuana users–do not appear to be at increased risk of developing lung cancer…
Marijuana smoking also did not appear to increase the risk of head and neck cancers, such as cancer of the tongue, mouth, throat, or esophagus, the study found.
The findings were a surprise to the researchers. “We expected that we would find that a history of heavy marijuana use–more than 500-1,000 uses–would increase the risk of cancer from several years to decades after exposure to marijuana,” said the senior researcher, Donald Tashkin, M.D., Professor of Medicine at the David Geffen School of Medicine at UCLA in Los Angeles.”
More: http://www.sciencedaily.com/releases/2006/05/060526083353.htm
“A compound found in cannabis may prove to be effective at helping stop the spread of breast cancer cells throughout the body.”
“Processed Meat Raises Risk Of Dying From Cancer And Heart Disease, Study Finds” http://www.huffingtonpost.com/2013/03/07/processed-meat-cancer-heart-disease-death-risk_n_2829092.html
“Chicago ‘Hot Dogs Cause Butt Cancer… Meat Under Fire for Causing Cancer, Death” http://abcnews.go.com/Health/chicago-hot-dogs-butt-cancer-billboard-highlights-colon/story?id=15920567
“Bad diet a significant cause of preventable cancer” http://www.ingredientsnetwork.com/news-content/full/bad-diet-a-significant-cause-of-preventable-cancer
“Processed meat ‘linked to pancreatic cancer'” http://www.bbc.co.uk/news/health-16526695
“Red meat increases death, cancer and heart risk, says study” http://www.bbc.co.uk/news/health-17345967

“Cancer risk from BBQ meat. Tips for safer and healthier grilling, from the Harvard Health Letter” http://www.health.harvard.edu/press_releases/cancer-risk-from-bbq-meat
“Scientists warn consumption of processed meat linked to cancer” http://www.guardian.co.uk/science/2009/jun/15/processed-meat-bacon-bowel-cancer
“Drinking Lots Of Milk Can Cause Ovarian Cancer” http://news.peacefmonline.com/health/201307/169595.php

“Processed meat consumption and risk of cancer: a multisite case-control study in Uruguay… The role of processed meat in the aetiology of several cancers was explored in detail… It could be concluded that processed meat intake could be a powerful multiorgan carcinogen.” http://www.ncbi.nlm.nih.gov/pubmed/23011480
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“Egg, red meat, and poultry intake and risk of lethal prostate cancer in the prostate specific antigen-era: incidence and survival… Red and processed meat may increase risk of advanced prostate cancer… consumption of eggs may increase risk of developing a lethal-form of prostate cancer among healthy men.” http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3232297/
“Meat consumption and risk of colorectal cancer….prolonged high consumption of red and processed meat may increase the risk of cancer in the distal portion of the large intestine.” http://www.ncbi.nlm.nih.gov/pubmed/15644544
“Biological activity of cannabinoids is caused by binding to two cannabinoid receptors CB1 and CB2. Psychoactive is not only tetrahydrocannabinol (THC) but also: cannabidiol, cannabigerol or cannabichromen.
Formerly, the usefulness of hemp was assessed in the relation to temporary appeasement of the symptoms of some ailments as nausea or vomiting.
Present discoveries indicates that cannabis-based drugs has shown ability to alleviate of autoimmunological disorders such as: Multiple sclerosis (MS), Rheumatoid arthritis (RA) or inflammatory bowel disease.
Another studies indicates that cannabinoids play role in treatment of neurological disorders like Alzheimer disease or Amyotrophic lateral sclerosis (ALS) or even can reduce spreading of tumor cells.
Cannabinoids stand out high safety profile considering acute toxicity, it is low possibility of deadly overdosing and side-effects are comprise in range of tolerated side-effects of other medications.
In some countries marinol and nabilone are used as anti vomiting and nausea drug. First cannabis-based drug containg naturally occurring cannabinoids is Sativex. Sativex is delivered in an mucosal spray for patients suffering from spasticity in MS, pain relevant with cancer and neuropathic pain of various origin.
Cannabis side-effects varies and depend from several factors like administrated dose, rout of administration and present state of mind. After sudden break from long-lasting use, withdrawal symptoms can appear, although they entirely disappear after a week or two.”
“Blackberry, black raspberry, blueberry, cranberry, red raspberry, and strawberry extracts inhibit growth and stimulate apoptosis of human cancer cells in vitro.” http://www.ncbi.nlm.nih.gov/pubmed/17147415
“Using Berries to Fight Cancer” http://abcnews.go.com/Technology/story?id=119873
“Blueberries fight aggressive breast cancer” http://abclocal.go.com/kabc/story?id=7388978
“Inhibition of Benzo(a)pyrene Diol-Epoxide-induced Transactivation of Activated Protein 1 and Nuclear Factor κB by Black Raspberry Extracts” http://cancerres.aacrjournals.org/content/62/23/6857.long
“Black raspberries prevent colorectal cancer in mice” http://www.nbcnews.com/id/39971798/ns/health-cancer/t/black-raspberries-prevent-colorectal-cancer-mice/


“Breast cancer link to small amount of alcohol” http://www.bbc.co.uk/news/health-15539450
“Alcohol link to bowel cancer risk” http://news.bbc.co.uk/2/hi/6921998.stm
“Alcohol Linked To Breast Cancer” http://www.cbsnews.com/8301-18563_162-529131.html
“Breast cancer leading cause of alcohol-attributable death in New Zealand women” http://medicalxpress.com/news/2013-07-breast-cancer-alcohol-attributable-death-zealand.html
“Alcoholism is linked to higher rates of general and cancer-related deaths” http://medicalxpress.com/news/2011-11-alcoholism-linked-higher-cancer-related-deaths.html
“Smoking, heavy drinking linked to earlier onset of pancreatic cancer” http://medicalxpress.com/news/2012-10-heavy-linked-earlier-onset-pancreatic.html
“Heavy alcohol consumption linked to lung cancer” http://medicalxpress.com/news/2011-10-heavy-alcohol-consumption-linked-lung.html
“Even moderate drinking may substantially raise risk of dying from cancer: study” http://www.nydailynews.com/life-style/health/moderate-drinking-raises-cancer-death-risk-study-article-1.1265529
“Even a drink a day boosts cancer death risk, alcohol study finds” http://www.nbcnews.com/health/even-drink-day-boosts-cancer-death-risk-alcohol-study-finds-1C8381639?franchiseSlug=healthmain
“Drinking linked to endometrial cancer risk” http://www.nbcnews.com/id/20889546/ns/health-cancer/t/drinking-linked-endometrial-cancer-risk/

“Alcohol consumption and the risk of breast cancer… Epidemiologic studies addressing the association of alcohol consumption with breast cancer consistently suggest a modest association and a dose-response relationship… Data from a variety of epidemiologic studies suggest that chronic alcohol consumption even in moderate amounts increases a woman’s risk for breast cancer… Epidemiologic data further suggest that consumption of larger amounts of alcohol is associated with a higher risk of breast cancer… Avoiding overconsumption of alcohol is recommended, especially for women with known risk factors for breast cancer.” http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0036-36342011000500012&lng=en&nrm=iso&tlng=en
“Gliomas, one of the most malignant forms of cancer, exhibit high resistance to conventional therapies. Identification of the molecular mechanisms responsible for this resistance is therefore of great interest to improve the efficacy of the treatments against these tumors. Delta9-Tetrahydrocannabinol (THC), the major active ingredient of marijuana, and other cannabinoids inhibit tumor growth in animal models of cancer, including glioma, an effect that relies, at least in part, on the ability of these compounds to induce apoptosis of tumor cells.
…we identified the epidermal growth factor receptor ligand amphiregulin as a candidate factor to mediate the resistance of glioma cells to cannabinoid treatment… in vivo silencing of amphiregulin rendered the resistant tumors xenografts sensitive to cannabinoid antitumoral action.
Amphiregulin expression was associated with increased extracellular signal-regulated kinase (ERK) activation, which mediated the resistance to THC by blunting the expression of p8 and TRB3-two genes involved in cannabinoid-induced apoptosis of glioma cells.
Our findings therefore identify Amphirregulin as a factor for resistance of glioma cells to THC-induced apoptosis and contribute to unraveling the molecular bases underlying the emerging notion that targeted inhibition of the EGFR pathway can improve the efficacy of antitumoral therapies.”