Study: CBDA and THC Have Anti-Inflammatory and Anti-Hyperalgesia Effects

Both cannabidiolic acid (CBDA) and tetrahydrocannabinol (THC) show  anti-inflammatory and anti-hyperalgesia effects on acute inflammation, according to a new study published by the journal Psychopharmacology, and epublished ahead of print by the National Institute of Health.

“The present study evaluates the anti-inflammatory and anti-hyperalgesia effects of CBD’s potent acidic precursor, cannabidiolic acid (CBDA), in a rodent model of carrageenan-induced acute inflammation in the rat hind paw, when administered systemically (intraperitoneal, i.p.) or orally before and/or after carrageenan”, begins the study’s abstract. “In addition, we assess the effects of oral administration of THC or CBDA, their mechanism of action, and the efficacy of combined ineffective doses of THC and CBDA in this model. Finally, we compare the efficacy of CBD and CBDA.”

Researchers found that “CBDA given i.p. 60 min prior to carrageenan (but not 60 min after carrageenan) produced dose-dependent anti-hyperalgesia and anti-inflammatory effects. In addition, THC or CBDA given by oral gavage 60 min prior to carrageenan produced anti-hyperalgesia effects, and THC reduced inflammation.”

The anti-hyperalgesia effects of THC “were blocked by SR141716 (a cannabinoid 1 receptor antagonist), while CBDA’s effects were blocked by AMG9810 (a transient receptor potential cation channel subfamily V member 1 antagonist). In comparison to CBDA, an equivalent low dose of CBD did not reduce hyperalgesia, suggesting that CBDA is more potent than CBD for this indication.”

Interestingly, “when ineffective doses of CBDA or THC alone were combined, this combination produced an anti-hyperalgesia effect and reduced inflammation.”

The study concludes by stating that “CBDA or THC alone, as well as very low doses of combined CBDA and THC, has anti-inflammatory and anti-hyperalgesia effects in this animal model of acute inflammation.”

The full study, conducted by researchers at the University of Guelph in Canada, can be found by clicking here.

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