Pilot study on cannabis-induced alterations in platelet function: implications for transfusion medicine - PubMed
6 hours ago
- #platelet-function
- #cannabis
- #transfusion-medicine
- Platelet transfusions are crucial for managing thrombocytopenia, bleeding disorders, and hematologic malignancies.
- Cannabis use is increasing globally, but its impact on platelet quality and transfusion efficacy is not well understood.
- The study investigated the effects of cannabis joint extracts (CJE) on platelet activation, mitochondrial function, and cytokine release.
- Two CJE types were tested: Orchid (O-CJE, THC 10.4%, CBD 14.7%) and QCGold (G-CJE, THC 25.5%, CBD 0.04%).
- CJE exposure led to dose-dependent platelet activation, mitochondrial depolarization, ATP depletion, and impaired aggregation responses.
- The study found no evidence that hemolysis is the underlying mechanism for the observed effects.
- CB1 and CB2 receptor antagonists did not reduce platelet activation, but p38 MAPK and NF-κB pathways were activated.
- Proteomics indicated changes in proteins related to angiogenesis, cytoskeletal organization, and stress responses.
- Elevated levels of CCL3 and PF4 and endothelial activation suggested a pro-inflammatory environment.
- The findings suggest cannabis may alter platelet function and interactions with vascular endothelium, but in vivo confirmation is needed.
- Future studies should establish exposure thresholds and assess implications for transfusion safety.