Hemp Extract Reduced Chemotherapy-Induced Nerve Pain in Rats Through Multiple Biological Pathways

Hemp extract significantly decreased mechanical allodynia, thermal hyperalgesia, and inflammatory cytokines in rats with paclitaxel-induced neuropathy. Multi-omics analysis identified seven key regulated genes (neuroactive ligand-receptor, PPAR, and cAMP pathways), 39 altered metabolites (pentose/glucuronate and glycerophospholipid pathways), and reversed gut microbiota changes.

Paclitaxel-induced peripheral neuropathy rat model. Hemp extract rich in cannabinoids was obtained by supercritical CO2 extraction. Antinociceptive effects measured via behavioral tests. Mechanisms explored using integrated transcriptomics, metabolomics, and gut microbiota analysis.

Chemotherapy-induced peripheral neuropathy affects up to 70% of cancer patients and has limited treatment options. This is among the first studies to use multi-omics approaches to map the full spectrum of biological pathways through which cannabis extract relieves this type of nerve pain, moving beyond single-target explanations.

The multi-pathway mechanism identified here helps explain why whole-plant cannabis extracts may work differently than isolated cannabinoids for pain. Affecting inflammation, neural signaling, lipid metabolism, and gut microbiota simultaneously could produce synergistic pain relief that single-compound approaches miss.

Animal study that may not translate directly to human chemotherapy patients. The hemp extract contains multiple cannabinoids, making it impossible to attribute effects to specific compounds. Dosing and pharmacokinetics differ substantially between rats and humans.