By Randy Dotinga
HealthDay Reporter
MONDAY, Jan. 11 (HealthDay News) -- Preliminary research suggests that a combination of compounds in marijuana could help fight off a particularly deadly form of brain cancer.
But the findings shouldn't send patients rushing to buy pot: the levels used in the research appear to be too high to obtain through smoking. And there's no sign yet that the approach works in laboratory animals, let alone people.
n international consortium led by Baylor College of Medicine and The University of Texas M.D. Anderson Cancer Center has narrowed the search for the gene or genes associated with inherited susceptibility to glioma, a deadly form of brain Cancer, to a region on chromosome 17.
You may have seen articles in the news about a drug called DCA (dichloroacetate), that is claimed to be cheap, safe and "kill most cancers". Understandably this has caused a great deal of interest, especially as DCA is an off-patent drug and appears to be non-toxic to humans.
DCA has now been approved for a trial in brain cancer patients in Canada. The researchers have raised $800,000 in public donations to fund the trial
Scientists in Japan recently studied some of the glyconutrients from spinach and found they inhibited destruction of DNA, cancer cell growth, and tumor growth. They used the nutrients to suppress the growth of colon adenocarcinoma in mice. After a two week period of ingesting the nutrients, a 56.1% decrease in solid tumor volume occurred without any side effects. And the nutrients reduced the ability of tumors to supply themselves with blood which they need to fuel their growth. Markers of cell proliferation were drastically reduced. (Lipids, August, 2008)
Side Effects and Warnings
Berberine has been reported to cause nausea, vomiting, hypertension (high blood pressure), respiratory failure and paresthesias (abnormal sensations such as numbness or tingling); however, clinical evidence of such adverse effects is not prominent in the literature. Rare adverse effects including headache, skin irritation, facial flushing, headache, bradycardia (slowed heart rate) have also been reported with the use of berberine. Use cautiously when taking berberine for longer than eight weeks due to theoretical changes in bacterial gut flora.
Use cautiously in individuals with diabetes, as both human and animal studies indicate that berberine may decrease blood sugar levels. Also use cautiously in individuals with hypotension (low blood pressure), as berberine may have antihypertensive effects.
Patients with cardiovascular disease should also use caution as berberine has been associated with the development of ventricular arrhythmias in subjects with congestive heart failure.
Although not well studied in humans, berberine may also theoretically cause delays in small intestinal transit time or increase the risk of bleeding.
Berberine may cause abortion, eye or kidney irritation, nephritis (inflamed kidneys), dyspnea (difficulty breathing), flu-like symptoms, giddiness, lethargy, or liver toxicity.
Patients with leukopenia (abnormally low white blood cell count) should use cautiously due to the potential for development of leukopenia symptoms.
When injected under the skin, berberine may cause hyperpigmentation in the arm. Use berberine cautiously in individuals with high exposure to sunlight or artificial light due to potential for adverse phototoxic reactions.
Avoid in newborns due to potential for increase in free bilirubin, jaundice, and development of kernicterus (brain damage caused by severe newborn jaundice). Use berberine cautiously in children due to a lack of safety information.
Pregnancy and Breastfeeding
Berberine is not recomme
"This is a study to see whether radiotherapy plus chemotherapy (Temozolomide) plus Dichloracetate (DCA) improves overall survival and offers better control of the disease in patients with newly diagnosed Glioblastoma Multiforme Tumours"