期刊
FRONTIERS IN NEUROSCIENCE
卷 16, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fnins.2022.962922
关键词
dementia; Alzheimer's disease; cannabis extract; cannabidiol (CBD); delta-9-tetrahydrocannabinol (THC); cannabis therapeutics; endocannabinod system
资金
- Dementia Centre for Research Collaboration
- NHMRC-Australian Research Council (ARC) Dementia Research Development Fellowship [APP1102532]
- NHMRC Investigator Grant [APP1195709]
- National Health and Medical Research Council [NHMRC: APP1102012, APP1141789]
- Ainsworth Medical Research Innovation Fund
Alzheimer's disease is a debilitating neurodegenerative disease characterized by cognitive decline and behavioral impairment. The endocannabinoid system is affected in Alzheimer's disease and phytocannabinoids such as CBD and THC have shown therapeutic potential in ameliorating the pathologies associated with the disease. Using multi-cannabinoid formulations for treatment may be more effective than isolating individual cannabinoids.
Alzheimer's disease (AD) is a debilitating neurodegenerative disease characterized by declining cognition and behavioral impairment, and hallmarked by extracellular amyloid-beta plaques, intracellular neurofibrillary tangles (NFT), oxidative stress, neuroinflammation, and neurodegeneration. There is currently no cure for AD and approved treatments do not halt or slow disease progression, highlighting the need for novel therapeutic strategies. Importantly, the endocannabinoid system (ECS) is affected in AD. Phytocannabinoids, including cannabidiol (CBD) and Delta(9)-tetrahydrocannabinol (THC), interact with the ECS, have anti-inflammatory, antioxidant, and neuroprotective properties, can ameliorate amyloid-beta and NFT-related pathologies, and promote neurogenesis. Thus, in recent years, purified CBD and THC have been evaluated for their therapeutic potential. CBD reversed and prevented the development of cognitive deficits in AD rodent models, and low-dose THC improved cognition in aging mice. Importantly, CBD, THC, and other phytochemicals present in Cannabis sativa interact with each other in a synergistic fashion (the entourage effect) and have greater therapeutic potential when administered together, rather than individually. Thus, treatment of AD using a multi-cannabinoid strategy (such as whole plant cannabis extracts or particular CBD:THC combinations) may be more efficacious compared to cannabinoid isolate treatment strategies. Here, we review the current evidence for the validity of using multi-cannabinoid formulations for AD therapy. We discuss that such treatment strategies appear valid for AD therapy but further investigations, particularly clinical studies, are required to determine optimal dose and ratio of cannabinoids for superior effectiveness and limiting potential side effects. Furthermore, it is pertinent that future in vivo and clinical investigations consider sex effects.
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