Study Investigates Whether Cannabis Use Promotes Proatherogenic Inflammation Through Ex Vivo Vascular Model
By
Holly R. Middlekauff
Summary
This study investigates whether cannabis use contributes to cardiovascular risk through inflammatory mechanisms, specifically examining monocyte transendothelial migration (MTEM) and monocyte-derived foam cell formation (MDFCF) — two early events in atherosclerosis. The research establishes a mechanistic ex vivo model to understand the net inflammatory effects of cannabis, given that cannabinoid CB-1 receptors promote inflammation while CB-2 receptors have anti-inflammatory effects. The study aims to clarify inconsistent findings from prior large-scale studies that were confounded by tobacco co-use among cannabis users.
Source
Twitter / XStudy Investigates Whether Cannabis Use Promotes Proatherogenic Inflammation Through Ex Vivo Vascular Modelahajournals.orgKey quotes
· 5 pulledLegalization of cannabis use in the United States has contributed to the perception that cannabis is safe.
However, it remains unclear whether cannabis increases cardiovascular risk.
Large studies have led to inconsistent results due to confounding factors, such as tobacco cigarette smoking among cannabis users.
CB-1 receptors exert pro-oxidative and proinflammatory effects, whereas CB-2 receptors have antioxidant and anti-inflammatory effects.
To address this knowledge gap, we have established a mechanistic ex vivo model of vascular inflammation that includes 2 early events: monocyte transendothelial migration (MTEM) into the subendothelial space at sites of endothelial activation and monocyte-derived foam cell formation (MDFCF).
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