CBD Reuptake Inhibitor – Hitching a Ride with a FABP

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Tourettes Syndrome

CBD Reuptake Inhibitor

How does CBD, an exogenous plant compound, get inside a human cell to bind to a nuclear receptor? First it has to pass through the cell membrane by hitching a ride with a fatty acid binding protein (FABP), which chaperones various lipid molecules into the cell’s interior. These intracellular transport molecules also escort tetrahydrocannabinol (THC) and the brain’s own marijuana-like molecules, the endocannabinoids anandamide and 2AG, across the membrane to several targets within the cell. CBD and THC both modulate receptors on the surface of the mitochondria and the nucleus.

“CBD also exerts an anti-cancer effect by activating PPARs on the surface of the cell’s nucleus.”

Cannabidiol, it turns out, has a strong affinity for three kinds of FABPs, and CBD competes with our endocannabinoids, which are fatty acids, for the same transport molecules. Once it is inside the cell, anandamide is broken down by FAAH [fatty acid amide hydrolase], a metabolic enzyme, as part of its natural molecular life cycle. But CBD interferes with this process by reducing anandamide’s access to FABP transport molecules and delaying endocannabinoid passage into the cell’s interior.

According to a team of Stony Brook University scientists, CBD functions as an anandamide reuptake and breakdown inhibitor, thereby raising endocannabinoid levels in the brain’s synapses. Enhancing endocannabinod tone via reuptake inhibition may be a key mechanism whereby CBD confers neuroprotective effects against seizures, as well as many other health benefits.

CBD’s anti-inflammatory and anti-anxiety effects are in part attributable to its inhibition of adenosine reuptake. By delaying the reuptake of this neurotransmitter, CBD boosts adenosine levels in the brain, which increases adenosine receptor activity. A1A and A2A adenosine receptors play significant roles in cardiovascular function, regulating myocardial oxygen consumption and coronary blood flow. These receptors have broad anti-inflammatory effects throughout the body.

Source: projectcbd

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