Investigators and pundits alike are fond of calling for ‘more research’ into the safety and efficacy of marijuana and its active compounds. Ironically, when such calls are heeded and new research is published, nobody wants to talk about it.

For example, researchers at the State University of New York (SUNY), Upstate Medical University in Syracuse published data in the June issue of the journal Pharmacology concluding that the administration of the plant cannabinoids delta-8-THC and delta-9-THC halted cellular respiration and tumor growth in human oral cancer cells. Specifically, investigators reported that cannabinoids were a “potent inhibitor” of Tu183 human cancer cells, a notoriously difficult to treat type of oral cancer.

Of course, this is hardly the first time that pot’s compounds have been demonstrated to possess anti-cancer properties. As has been widely reported here and elsewhere, US government researchers were first aware of this finding over 35 years ago, and today there exist published scientific studies demonstrating that cannabinoids can inhibit the proliferation of a wide range of cancers — including brain cancer, prostate cancer, breast cancer, lung cancer, skin cancer, pancreatic cancer, biliary tract cancer, and lymphoma. Nonetheless, abstract prohibitionist concerns regarding marijuana’s supposed cancer risk continue to dominate the headlines while actual scientific studies debunking these allegations tend to go unnoticed.

Similarly, preclinical data published online last week in the journal Cell Communication and Signaling reported that the administration of the non-psychoactive cannabinoid cannabidiol (CBD) increases adult neurogenesis (the active production of new neurons) in laboratory animals. Authors speculated that cannabis’ pro-neurogenic effects may explain why the plant appears to be useful in the treatment of certain neurodegenerative disorders like Alzheimer’s disease or ALS.

As I wrote last week, to date there are now over 20,000 published studies or reviews in the scientific literature pertaining to marijuana and its active compounds — making marijuana the most studied plant on Earth. But what’s the point in further research if nobody even bothers to pay attention to the research that’s already been done?

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