In another blow and contradiction to mainstream scientific claims which consistently report that Cannabis causes brain damage, a recent study shows the opposite. Research published in the journals Behavioural Brain Research and Experimental Brain Research demonstrated that even extremely low doses of THC (Marijuana’s psychoactive component) — around 1,000 to 10,000 times less than that in a conventional marijuana cigarette — can jumpstart biochemical processes which protect brain cells and preserve cognitive function.
In fact, extremely low doses of THC protect the brain both before and after injury, say researchers from Tel Aviv University (TAU).
Dozens of studies have made pseudoscientific attempts to indicate that young people who use cannabis tend to experience psychological problems, mental decline, neurological damage and even schizophrenia. However, there is no evidence that marijuana use is directly linked with such problems, according to a previous study published in The Lancet and marijuana has been.
Perhaps most notably, in 2007 the media reported that cannabis “could boost the risk of developing a psychotic illness later in life by about 40 percent” — a talking point that was also actively promoted by U.S. anti-drug officials.
However, marijuana has been linked to neuroprotective properties in mitigating oxidative stress or excitotoxic cell death and has actually been found to treat schizophrenia.
Investigators at the Keele University Medical School in Britain compared trends in marijuana use and incidences of schizophrenia in the United Kingdom from 1996 to 2005. Researchers reported that the “incidence and prevalence of schizophrenia and psychoses were either stable or declining” during this period, even the use of cannabis among the general population was rising.
Neuropsychopharmacology evidence has shown that the administration of oral THC in animals suppressed sensitivity to opiate dependence and now the new study from TAU goes one step further suggesting a link between THC and cognitive protection.
Although the medical benefits of marijuana are suppressed due to its powerful therapeutic properties of marijuana, this hasn’t stopped users of medical cannabis from relieving chronic ailments, including cancer and post-traumatic stress disorder, to combat pain, insomnia, lack of appetite, and other symptoms. The top benefits of Marijuana clearly indicate it is one of the most significant healing plants on Earth.
Now Prof. Yosef Sarne of Tel Aviv University’s Adelson Center for the Biology of Addictive Diseases at the Sackler Faculty of Medicine says that the drug has neuroprotective qualities as well. He has found that extremely low doses of THC — the psychoactive component of marijuana — protects the brain from long-term cognitive damage in the wake of injury from hypoxia (lack of oxygen), seizures, or toxic drugs. Brain damage can have consequences ranging from mild cognitive deficits to severe neurological damage.
Previous studies focused on injecting high doses of THC within a very short time frame — approximately 30 minutes — before or after injury. Prof. Sarne’s current research, published in the journals Behavioural Brain Research and Experimental Brain Research, demonstrates that even extremely low doses of THC — around 1,000 to 10,000 times less than that in a conventional marijuana cigarette — administered over a wide window of 1 to 7 days before or 1 to 3 days after injury can jumpstart biochemical processes which protect brain cells and preserve cognitive function over time.
This treatment, especially in light of the long time frame for administration and the low dosage, could be applicable to many cases of brain injury and be safer over time, Prof. Sarne says.
Conditioning the Brain
While performing experiments on the biology of cannabis, Prof. Sarne and his fellow researchers discovered that low doses of the drug had a big impact on cell signalling, preventing cell death and promoting growth factors. This finding led to a series of experiments designed to test the neuroprotective ability of THC in response to various brain injuries.
In the lab, the researchers injected mice with a single low dose of THC either before or after exposing them to brain trauma. A control group of mice sustained brain injury but did not receive the THC treatment. When the mice were examined 3 to 7 weeks after initial injury, recipients of the THC treatment performed better in behavioral tests measuring learning and memory. Additionally, biochemical studies showed heightened amounts of neuroprotective chemicals in the treatment group compared to the control group.
The use of THC can prevent long-term cognitive damage that results from brain injury, the researchers conclude. One explanation for this effect is pre- and post-conditioning, whereby the drug causes minute damage to the brain to build resistance and trigger protective measures in the face of much more severe injury, explains Prof. Sarne. The low dosage of THC is crucial to initiating this process without causing too much initial damage.
Preventative and Long-Term Use
According to Prof. Sarne, there are several practical benefits to this treatment plan. Due to the long therapeutic time window, this treatment can be used not only to treat injury after the fact, but also to prevent injury that might occur in the future. For example, cardiopulmonary heart-lung machines used in open heart surgery carry the risk of interrupting the blood supply to the brain, and the drug can be delivered beforehand as a preventive measure. In addition, the low dosage makes it safe for regular use in patients at constant risk of brain injury, such as epileptics or people at a high risk of heart attack.
Prof. Sarne is now working in collaboration with Prof. Edith Hochhauser of the Rabin Medical Center to test the ability of low doses of THC to prevent damage to the heart. Preliminary results indicate that they will find the same protective phenomenon in relation to cardiac ischemia, in which the heart muscle receives insufficient blood flow.
Mounting Evidence Suggests Raw Cannabis is Best
Cannabinoids can prevent cancer, reduce heart attacks by 66% and insulin dependent diabetes by 58%. Cannabis clinician Dr. William Courtney recommends drinking 4 – 8 ounces of raw flower and leaf juice from any Hemp plant, 5 mg of Cannabidiol (CBD) per kg of body weight, a salad of Hemp seed sprouts and 50 mg of THC taken in 5 daily doses.
Why raw? Heat destroys certain enzymes and nutrients in plants. Incorporating raw cannabis allows for a greater availability of those elements. Those who require large amounts of cannabinoids without the psychoactive effects need to look no further than raw cannabis. In this capacity, it can be used at 60 times more tolerance than if it were heated.
Raw cannabis is considered by many experts as a dietary essential. As a powerful anti-inflammatory and antioxidant, raw cannabis may be right u there with garlic and tumeric.
About the Author
Marco Torres is a research specialist, writer and consumer advocate for healthy lifestyles. He holds degrees in Public Health and Environmental Science and is a professional speaker on topics such as disease prevention, environmental toxins and health policy.
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