| Journal | Platelets |
| Study Type | Pilot Study |
| Population | Human participants |
This pilot study addresses a critical knowledge gap in transfusion medicine as cannabis use becomes increasingly prevalent among blood donors. Understanding how cannabis components affect platelet function could inform donor screening protocols and transfusion safety guidelines.
Researchers exposed human platelets in vitro to cannabis joint extracts with different THC:CBD ratios – one balanced (10.4% THC, 14.7% CBD) and one THC-dominant (25.5% THC, 0.04% CBD). The study measured platelet activation markers, mitochondrial function, aggregation responses, and inflammatory mediator release to assess potential impacts on platelet quality and hemostatic function. Results showed dose-dependent effects on platelet activation and mitochondrial function, with CB1/CB2 receptor involvement and p38 MAPK pathway activation. This preliminary work provides mechanistic insights but represents early-stage research with inherent limitations of in vitro methodology.
“While this research identifies important mechanistic pathways, the clinical relevance remains unclear given the artificial laboratory conditions and lack of correlation with actual donor cannabis use patterns. We need real-world studies examining platelet function in cannabis-using donors before drawing clinical conclusions.”
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This study item was assembled from normalized source metadata and pipeline scoring.