What is CBD?
What is CBD?
Cannabidiol—CBD—is a cannabis compound that has significant medical benefits, but does not make people feel “stoned” and can actually counteract the psychoactivity of THC. The fact that CBD-rich cannabis is non-psychoactive or less psychoactive than THC-dominant strains makes it an appealing option for patients looking for relief from inflammation, pain, anxiety, psychosis, seizures, spasms, and other conditions without disconcerting feelings of lethargy or dysphoria.
Scientific and clinical research—much of it sponsored by the US government—underscores CBD’s potential as a treatment for a wide range of conditions, including arthritis, diabetes, alcoholism, MS, chronic pain, schizophrenia, PTSD, depression, antibiotic-resistant infections, epilepsy, and other neurological disorders. CBD has demonstrable neuroprotective and neurogenic effects, and its anti-cancer properties are currently being investigated at several academic research centers in the United States and elsewhere. Further evidence suggests that CBDis safe even at high doses.
How Does CBD work?
Cannabidiol (CBD), a non-psychoactive component of the marijuana plant, has generated significant interest among scientists and physicians in recent years—but how CBD exerts its therapeutic impact on a molecular level is still being sorted out by scientists. Cannabidiol is a pleiotropic drug in that it produces many effects through multiple molecular pathways.
Although CBD has little binding affinity for either of the two cannabinoid receptors (CB1 and CB2), cannabidiol activates several non-cannabinoid receptors and ion channels. CBD also acts through various receptor-independent channels—for example, by delaying the “reuptake” of endogenous neurotransmitters (such as anandamide and adenosine) and by enhancing or inhibiting the binding action of certain G-coupled protein receptors.
Here are some of the ways that CBD confers its manifold therapeutic effects.
Jose Alexandre Crippa and his colleagues at the University of San Paulo in Brazil and King’s College in London have conducted pioneering research into CBD and the neural correlates of anxiety. At high concentrations, CBD directly activates the 5-HT1A(hydroxytryptamine) serotonin receptor, thereby conferring an anti-anxiety effect. This G-coupled protein receptor is implicated in a range of biological and neurological processes, including (but not limited to) anxiety, addiction, appetite, sleep, pain perception, nausea and vomiting.
5-HT1A is a member of the family of 5-HT receptors, which are activated by the neurotransmitter serotonin. Found in both the central and peripheral nervous systems, 5-HT receptors trigger various intracellular cascades of chemical messages to produce either an excitatory or inhibitory response, depending on the chemical context of the message.
CBDA [Cannabidiolic acid], the raw, unheated version of CBD that is present in the cannabis plant, also has a strong affinity for the 5-HT1A receptor (even more so than CBD). Preclimical studies indicate that CBDA is a potent anti-emetic, stronger than either CBD or THC, which also have anti-nausea properties.
It doesn’t get you high, but it’s causing quite a buzz among medical scientists and patients. The past year has seen a surge of interest in cannabidiol (CBD), a non-intoxicating cannabis compound with significant therapeutic properties. Numerous commercial start-ups and internet retailers have jumped on the CBD bandwagon, touting CBD derived from industrial hemp as the next big thing, a miracle oil that can shrink tumors, quell seizures, and ease chronic pain—without making people feel “stoned.” But along with a growing awareness of cannabidiol as a potential health aid there has been a proliferation of misconceptions about CBD.
- “CBD is medical. THC is recreational.” Project CBD receives many inquiries from around the world and oftentimes people say they are seeking “CBD, the medical part” of the plant, “not THC, the recreational part” that gets you high. Actually, THC, “The High Causer,” has awesome therapeutic properties. Scientists at the Scripps Research Center in San Diego reported that THC inhibits an enzyme implicated in the formation of beta-amyloid plaque, the hallmark of Alzheimer’s-related dementia. The federal government recognizes single-molecule THC(Marinol) as an anti-nausea compound and appetite booster, deeming it a Schedule III drug, a category reserved for medicinal substances with little abuse potential. But whole plant marijuana, the only natural source of THC, continues to be classified as a dangerous Schedule I drug with no medical value.
- “THC is the bad cannabinoid. CBD is the good cannabinoid.” The drug warrior’s strategic retreat: Give ground on CBD while continuing to demonize THC. Diehard marijuana prohibitionists are exploiting the good news about CBD to further stigmatize high-THC cannabis, casting tetrahydrocannabinol as the bad cannabinoid, whereas CBD is framed as the good cannabinoid. Why? Because CBDdoesn’t make you high like THC does. Project CBD categorically rejects this moralistic, reefer madness dichotomy in favor of whole plant cannabis therapeutics. (Read the foundational science paper: A Tale of Two Cannabinoids.
*CBD Information courtesy of ProjectCBD.org