Cannabidiol in the treatment and prevention of Alzheimer’s disease – a comprehensive

Dementia is a major public health problem. Alzheimer’s disease (AD) accounts for 60% of dementia cases. However, AD is currently considered as an incurable disorder and the only few drugs available for its treatment are mostly symptomatic. In the quest for novel drugs for this devastating disease, cannabidiol (CBD) has been recently gaining attention due to its multiple properties, such as an ability to interact with various receptors, anti-inflammatory and antioxidative effects and many more. The aim of this review article was to summarize findings on the effect of CBD on AD with a focus on molecular mechanisms of CBD’s action and therapeutic effects which it exerts.

Cannabinoid extract in microdoses ameliorates mnemonic and nonmnemonic Alzheimer’s disease symptoms: a case report

Cannabinoid-based therapy has been shown to be promising and is emerging as crucial for the treatment of cognitive deficits, mental illnesses, and many diseases considered incurable. There is a need to find an appropriate therapy for Alzheimer’s disease, and cannabinoid-based therapy appears to be a feasible possibility.

Understanding the Modulatory Effects of Cannabidiol on Alzheimer’s Disease

Alzheimer’s disease (AD), the most common neurodegenerative disease, is characterized by progressive cognitive impairment. The deposition of amyloid beta (Aβ) and hyperphosphorylated tau is considered the hallmark of AD pathology. Many therapeutic approaches such as Food and Drug Administration-approved cholinesterase inhibitors and N–methyl–D–aspartate receptor antagonists have been used to intervene in AD pathology. However, current therapies only provide limited symptomatic relief and are ineffective in preventing AD progression. Cannabidiol (CBD), a phytocannabinoid devoid of psychoactive responses, provides neuroprotective effects through both cannabinoid and noncannabinoid receptors. Recent studies using an AD mouse model have suggested that CBD can reverse cognitive deficits along with Aβ-induced neuroinflammatory, oxidative responses, and neuronal death.

Potential and Limits of Cannabinoids in Alzheimer’s Disease Therapy

This randomized, double-blind, placebo-controlled, cross-over study was conducted to evaluate the safety and efficacy of two-weeks of nightly sublingual cannabinoid extract (ZTL-101) in treating chronic insomnia (symptoms ≥three months).

Medical cannabis and cognitive performance in middle to old adults treated for chronic pain

Authors: Sharon R Sznitman, Simon Vulfsons, David Meiri, Galit Weinstein Published in Drug and Alcohol Review September 2020 Abstract Introduction and aims: Cannabis exposure is becoming more common in older age but little is known about how it is associated with brain health in this population. This study assesses the relationship between long-term medical cannabis…

Cannabinoids and the expanded endocannabinoid system in neurological disorders.

Authors: Luigia Cristino, Tiziana Bisogno, Vincenzo Di Marzo
Nature Reviews Neurology, January 2020

Anecdotal evidence that cannabis preparations have medical benefits together with the discovery of the psychotropic plant cannabinoid Δ9-tetrahydrocannabinol (THC) initiated efforts to develop cannabinoid-based therapeutics. These efforts have been marked by disappointment, es…

An update on the advancements in the treatment of agitation in Alzheimer’s disease

Authors: Assaf Shelef, Yoram Barak, Uri Berger, Diana Paleacu, Shelly Tadger, Igor Plopsky, Yehuda Baruch
Expert Opinion on Pharmacotherapy, April 2017

Neuropsychiatric symptoms (NPS) in Alzheimer’s disease (AD) are associated with significant negative outcomes for patients and their caregivers. Agitation, one of the most distressing NPS, lacks safe and effective long term interventions. Nonpharmacological interventions are s…

In vivo Evidence for Therapeutic Properties of Cannabidiol (CBD) for Alzheimer’s Disease

Authors: Georgia Watt, Tim Karl
Frontiers in Pharmacology, 3 February 2017

Alzheimer’s disease (AD) is a debilitating neurodegenerative disease that is affecting an increasing number of people. It is characterized by the accumulation of amyloid-β and tau hyperphosphorylation as well as neuroinflammation and oxidative stress. Current AD treatments do…

Cannabidiol Modulates the Expression of Alzheimer’s Disease-Related Genes in Mesenchymal Stem Cells.

Authors: Rosaliana Libro, Francesca Diomede, Domenico Scionti, Adriano Piattelli, Gianpaolo Grassi, et al
International Journal of Molecular Sciences, 23 December 2016

Mesenchymal stem cells (MSCs) have emerged as a promising tool for the treatment of several neurodegenerative disorders, including Alzheimer’s disease (AD). The main neuropathological hallmarks of AD are senile plaques, composed of amyloid beta (Aβ), and neurofibrillary tangle…

Safety and Efficacy of Medical Cannabis Oil for Behavioral and Psychological Symptoms of Dementia: An-Open Label, Add-On, Pilot Study

Authors: Assaf Shelef, Yoram Barak, Uri Berger, Diana Paleacu, Shelly Tadger, Igor Plopsky, Yehuda Baruch
Journal of Alzheimer’s Disease, 27 February 2016

BACKGROUND: Tetrahydrocannabinol (THC) is a potential treatment for Alzheimer’s disease (AD). OBJECTIVE: To measure efficacy and safety of medical cannabis oil (MCO) containing THC as an add-on to pharmacotherapy, in relieving behavioral and psychological symptoms of dementia…

Cannabinoids in late‐onset Alzheimer’s disease

Authors: AIA Ahmed, MA van der Marck, GAH van den Elsen, MGM Olde Rikkert
Clinical Pharmacology & Therapeutics, 8 March 2015

Given the lack of effective treatments for late-onset Alzheimer’s disease (LOAD) and the substantial burden on patients, families, health care systems, and economies, finding an effective therapy is one of the highest medical priorities. The past few years have seen a growing…

The potential therapeutic effects of THC on Alzheimer’s disease

Authors: Chuanhai Cao, Yaqiong Li, Hui Liu, Ge Bai, Jonathan Mayl, Xiaoyang Lin, Kyle Sutherland, Neel Nabar, Jianfeng Cai
Journal of Alzheimer’s Disease, 16 September 2014

The purpose of this study was to investigate the potential therapeutic qualities of Δ9-tetrahydrocannabinol (THC) with respect to slowing or halting the hallmark characteristics of Alzheimer’s disease. N2a-variant amyloid-β protein precursor (AβPP) cells were incubated with TH…