Entries by Michelle Smith

Update and perspectives on minor plant-derived cannabinoids of biomedical interest

Recently, the first publically-funded Latin American cannabinoid research network (CannaLatan, www.cyted.org/es/cannalatan), formed by academic investigators and pharma companies of different countries, was launched. CannaLatan aims to promote and boost the results obtained by the different partners of the consortium developing collaborative research and educational projects. The CannaLatan network is devoted to tackle the potential therapeutic applications of under-investigated phytocannabinoids and novel cannabinoid-based molecules, as well to clarify their undesired actions. Here we discuss one of the ongoing projects initiated by CannaLatan with the financial support of Fundación Canna (www.fundacion-canna.es/) , in which we address the anti-psychotic and cognitive actions of acidic forms of phytocannabinoids, namely THCa

The Potential Use of Cannabis in Tissue Fibrosis

Numerous publications suggest that cannabinoids and extracts of Cannabis sativa have potent anti-inflammatory and anti-fibrogenic properties. In this review, we describe the types and mechanisms of fibrosis in various tissues and discuss various strategies for prevention and dealing with tissue fibrosis. We further introduce cannabinoids and their potential for the prevention and treatment of fibrosis, and therefore for extending healthy lifespan.

History, science, and politics of international cannabis scheduling, 2015–2021

On 21 April 2021, the herbal medicines “cannabis” and “cannabis resin” definitively ceased to appear in Schedule IV of the 1961 Single Convention on narcotic drugs (C61), where they had been listed since the entry into force of that treaty in 1964. The process to scientifically review and reschedule Cannabis-related controlled drugs had been launched by the World Health Organization (WHO) on 2 December 2016 and went through a number of hindrances until it finally got submitted to a unique voting process on 2 December 2020 at the United Nations Commission on narcotic drugs (CND).

The Effect of Cannabis-Based Medicine in the Treatment of Cachexia: A Systematic Review and Meta-Analysis

Cachexia is a prevalent condition associated with underlying chronic disease. Wasting of skeletal muscle and adipose tissue loss in cachectic patients is associated with higher rates of disability, reduced quality of life (QoL), and worse prognosis. There is a large unmet need to develop strategies to treat cachexia as there are currently no standardized guidelines in the management of cachexia. Activation of endogenous cannabinoid receptors, through exogenous cannabinoids, has demonstrated potential in increasing appetite, reducing catabolism, and has shown anti-inflammatory properties. Since no single pharmacological agent is currently recommended for use in cachexia, the potential of cannabinoids as an appetite stimulant warrants further research and assessment of current evidence.

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Lung cancer patient who had declined conventional cancer treatment: could the self-administration of ‘CBD oil’ be contributing to the observed tumour regression?

Conventional lung cancer treatments include surgery, chemotherapy and radiotherapy; however, these treatments are often poorly tolerated by patients. Cannabinoids have been studied for use as a primary cancer treatment. Cannabinoids, which are chemically similar to our own body’s endocannabinoids, can interact with signalling pathways to control the fate of cells, including cancer cells. We present a patient who declined conventional lung cancer treatment. Without the knowledge of her clinicians, she chose to self-administer ‘cannabidiol (CBD) oil’ orally 2–3 times daily. Serial imaging shows that her cancer reduced in size progressively from 41 mm to 10 mm over a period of 2.5 years. Previous studies have failed to agree on the usefulness of cannabinoids as a cancer treatment. This case appears to demonstrate a possible benefit of ‘CBD oil’ intake that may have resulted in the observed tumour regression. The use of cannabinoids as a potential cancer treatment justifies further research.

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Analgesic Potential of Terpenes Derived from Cannabis sativa

Decades of research have improved our knowledge of cannabis polypharmacy and contributing phytochemicals, including terpenes. Reform of the legal status for cannabis possession and increased availability (medicinal and recreational) have resulted in cannabis use to combat the increasing prevalence of pain and may help to address the opioid crisis. Better understanding of the pharmacological effects of cannabis and its active components, including terpenes, may assist in identifying new therapeutic approaches and optimizing the use of cannabis and/or terpenes as analgesic agents.

Cannabis Glandular Trichomes: A Cellular Metabolite Factory

While growers tend to focus on improving whole flower yields, our understanding of the “goldmines” of the plant – the trichomes – is limited despite their being the true source of revenue for a multi-billion-dollar industry. This review aims to provide an overview of our current understanding of cannabis glandular trichomes and their metabolite products in order to identify current gaps in knowledge and to outline future research directions.

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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.

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Practical Strategies Using Medical Cannabis to Reduce Harms Associated With Long Term Opioid Use in Chronic Pain

Chronic non-cancer pain (CNCP) is estimated to affect 20% of the adult population. Current United States and Canadian Chronic non-cancer pain guidelines recommend careful reassessment of the risk-benefit ratio for doses greater than 90 mg morphine equivalent dose (MED), due to low evidence for improved pain efficacy at higher morphine equivalent dose and a significant increase in morbidity and mortality. There are a number of human studies demonstrating cannabis opioid synergy. This preliminary evidence suggests a potential role of cannabis as an adjunctive therapy with or without opioids to optimize pain control.

To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.
To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.

To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.

Many cannabinoids display promising non-hallucinogenic bioactivities that are determined by the variable nature of the side chain and prenyl group defined by the enzymes involved in their synthesis.

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Cannabidiol Use, Substitution for Medications, and Perceptions of Effectiveness in Women with Chronic Pelvic Pain

To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.

To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.
To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.

To describe the prevalence and patterns of cannabidiol (CBD) use in women with co-existing chronic pelvic pain (CPP) and fibromyalgia, and to evaluate characteristics associated with pain improvement.

Many cannabinoids display promising non-hallucinogenic bioactivities that are determined by the variable nature of the side chain and prenyl group defined by the enzymes involved in their synthesis.