Effects of medical cannabis use on physical and psychiatric symptoms across the day among older adults

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“Introduction: Older adults are increasingly using medical cannabis (MC). It is unclear if therapeutic effects increase problematic use patterns. The current study addresses this issue by examining symptom trajectories across the day and using trajectories to predict problematic use.

Methods: One-hundred six older adults (age range 55-74) who endorsed medical conditions approved for treatment using MC were recruited online. Participants received six text messages/day to assess momentary symptoms for 15 days.

Results: Participants provided 5,156 momentary assessments across 1,106 use days. Symptom trajectories were examined across the day. There was a decline in all symptoms following use. Negative affect, pain, and nausea evinced momentary negative reinforcement associations with cannabis intoxication. Momentary negative reinforcement was associated with adverse cannabis outcomes. Declines in post-use trauma symptoms and momentary negative reinforcement effects for negative affect were both associated with cannabis use disorder symptoms.

Discussion: These data suggest that MC may be effective in reducing common symptom clusters. However, the negative reinforcing effect (i.e., the link between use and symptom relief at the event level) may complicate the therapeutic nature (i.e., symptom reduction). Identifying interventions to maximize benefits while minimizing costs may increase the efficacy and safety of MC in older adults.”

https://pubmed.ncbi.nlm.nih.gov/38924900/

“Medical cannabis (MC) use is increasing in older adults. MC was associated with decreases in pain, negative affect, trauma, and nausea.”

https://www.sciencedirect.com/science/article/abs/pii/S0165178124003408?via%3Dihub


The Therapeutic Potential of Hemp Seed Oil in D-Galactose-Induced Aging Rat Model Was Determined through the Combined Assessment of 1H NMR Metabolomics and 16S rRNA Gene Sequencing

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“Aging is an irreversible process of natural degradation of bodily function. The increase in the aging population, as well as the rise in the incidence of aging-related diseases, poses one of the most pressing global challenges.

Hemp seed oil, extracted from the seeds of hemp (Cannabis sativa L.), possesses significant nutritional and biological properties attributed to its unique composition of polyunsaturated fatty acids and various antioxidant compounds. However, there is limited knowledge regarding the anti-aging mechanism of hemp seed oil.

This study aimed to evaluate the beneficial effects and potential mechanisms of hemp seed oil in a D-galactose (D-gal)-induced aging rat model through a combined analysis of metabolomics and 16S rRNA gene sequencing.

Using nuclear magnetic resonance (NMR)-based metabolomics, significant alterations in serum and urine metabolic phenotypes were observed between the D-gal-induced aging rat model and the healthy control group. Eight and thirteen differentially expressed metabolites related to aging were identified in serum and urine, respectively.

Treatment with hemp seed oil significantly restored four and ten potential biomarkers in serum and urine, respectively. The proposed pathways primarily included energy metabolism, amino acid metabolism, one-carbon metabolism, and lipid metabolism. Furthermore, 16S rRNA gene sequencing analysis revealed significant changes in the gut microbiota of aged rats. Compared to the model group, the hemp seed oil group exhibited significant alterations in the abundance of 21 bacterial taxa at the genus level.

The results indicated that hemp seed oil suppressed the prevalence of pathogenic bacterial genera such as Streptococcus, Rothia, and Parabacteroides. Additionally, it facilitated the proliferation of the genera Lachnospirace_NK4B4_group and Lachnospirace_UCG_001, while also enhancing the relative abundance of the genus Butyricoccus; a producer of short-chain fatty acids (SCFAs).

These findings provided new insights into the pathogenesis of aging and further supported the potential utility of hemp seed oil as an anti-aging therapeutic agent.”

https://pubmed.ncbi.nlm.nih.gov/38921439/

“In conclusion, this study demonstrated that the administration of hemp seed oil resulted in a reversal of 4 and 10 differential metabolites related to aging in the serum and urine of the model rats, respectively. These findings suggested that hemp seed oil exerted anti-aging effects by partially restoring the balance of disrupted metabolic pathways, including energy metabolism, amino acid metabolism, one-carbon metabolism, and lipid metabolism. These results provided novel insights into the pathogenesis of aging and further supported the potential therapeutic use of hemp seed oil as an anti-aging intervention.”

https://www.mdpi.com/2218-1989/14/6/304

Cannabinerol Prevents Endoplasmic Reticulum and Mitochondria Dysfunctions in an In Vitro Model of Alzheimer’s Disease: A Network-Based Transcriptomic Analysis

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“Neurodegenerative disorders are affecting millions of people worldwide, impacting the healthcare system of our society. Among them, Alzheimer’s disease (AD) is the most common form of dementia, characterized by severe cognitive impairments. Neuropathological hallmarks of AD are β-amyloid (Aβ) plaques and neurofibrillary tangles, as well as endoplasmic reticulum and mitochondria dysfunctions, which finally lead to apoptosis and neuronal loss.

Since, to date, there is no definitive cure, new therapeutic and prevention strategies are of crucial importance. In this scenario, cannabinoids are deeply investigated as promising neuroprotective compounds for AD. In this study, we evaluated the potential neuroprotective role of cannabinerol (CBNR) in an in vitro cellular model of AD via next-generation sequencing.

We observed that CBNR pretreatment counteracts the Aβ-induced loss of cell viability of differentiated SH-SY5Y cells. Moreover, a network-based transcriptomic analysis revealed that CBNR restores normal mitochondrial and endoplasmic reticulum functions in the AD model. Specifically, the most important genes regulated by CBNR are related mainly to oxidative phosphorylation (COX6B1, OXA1L, MT-CO2, MT-CO3), protein folding (HSPA5) and degradation (CUL3, FBXW7, UBE2D1), and glucose (G6PC3) and lipid (HSD17B7, ERG28, SCD) metabolism.

Therefore, these results suggest that CBNR could be a new neuroprotective agent helpful in the prevention of AD dysfunctions.”

https://pubmed.ncbi.nlm.nih.gov/38920643/

“In conclusion, our study demonstrates that the phytocannabinoid CBNR displays neuroprotective properties in an Aβ-induced AD model in differentiated SH-SY5Y cells. Indeed, it restores mitochondrial and endoplasmic reticulum dysfunctions, regulating genes related to oxidative phosphorylation, protein folding, ubiquitin-mediated degradation, and glucose and lipid metabolism. Therefore, CBNR could be a novel molecule able to prevent some of the key early features of AD and potentially other diseases characterized by similar dysfunctions.”

https://www.mdpi.com/2073-4409/13/12/1012

In vivo and in silico studies of the effects of oil extracted from Cannabis sativa L. seeds on healing of burned skin wounds in rats

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“Introduction: This study investigates the potential effects of cannabis seed oil (CSO) on the wound healing process. The aim was to assess the efficacy of CSO in treating skin wounds using an animal model and to explore its anti-inflammatory properties through in silico analysis.

Methods: Eighteen male albino Wistar rats, weighing between 200 and 250 g, were divided into three groups: an untreated negative control group, a group treated with the reference drug silver sulfadiazine (SSD) (0.01 g/mL), and a group treated topically with CSO (0.962 g/mL). The initial wound diameter for all groups was 1 cm. In silico studies were conducted using Maestro 11.5 to evaluate the anti-inflammatory effects of phytoconstituents against cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2).

Results: CSO and SSD treatments led to a significant reduction (p <0.05) in the size of burned skin wounds by day 5, with contraction rates of 53.95% and 45.94%, respectively, compared to the untreated negative control group. By day 15, wounds treated with CSO and SSD had nearly healed, showing contraction rates of 98.8% and 98.15%, respectively. By day 20, the wounds treated with CSO had fully healed (100%), while those treated with SSD had almost completely healed, with a contraction rate of 98.97%. Histological examination revealed granulated tissue, neo-blood vessels, fibroblasts, and collagen fibers in wounds treated with CSO. In silico studies identified arachidic acid, γ-linolenic acid, and linolenic acid as potent inhibitors of COX-1 and COX-2. Serum biochemical parameters indicated no significant changes (p > 0.05) in liver and kidney function in rats treated with CSO, whereas a significant increase (p < 0.01) in ALAT level was observed in rats treated with SSD.

Discussion: The findings demonstrate that CSO has a promising effect on wound healing. The CSO treatment resulted in significant wound contraction and histological improvements, with no adverse effects on liver and kidney function.However, the study’s limitations, including the small sample size and the need for detailed elucidation of CSO’s mechanism of action, suggest that further research is necessary. Future studies should focus on exploring the molecular pathways and signaling processes involved in CSO’s pharmacological effects.”

https://pubmed.ncbi.nlm.nih.gov/38919274/

“The results of the present study demonstrated the efficacy of CSO in the healing of burn wounds in rats, indicating it might represent a natural compound that can be used to treat injuries to the skin in humans and animals. CSO can also be an excellent drug in the cosmetic field because of its potential protection against skin problems via its efficacy in cicatrization. The results presented here provide the basis for future clinical studies demonstrating the safety and efficacy of CSO as a topical agent to facilitate the healing of wounds in humans. Finally, these findings underscore the safety profile of CSO as a natural product compared to the reference control group. These robust data further support the promising potential of CSO as a safe and viable option for dermal applications, with no adverse effects observed on liver and kidney functions.”

https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2024.1381527/full

The potential of cannabinoids in managing cancer-related anorexia in older adults: a systematic review of the literature

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“Background and objectives: Anorexia of aging (AoA) is a prevalent geriatric syndrome characterized by a multifactorial decline in appetite and reduced food intake associated with the aging process. This systematic review aims to investigate the use and outcomes of cannabinoids in addressing AoA, with the goal of providing a comprehensive understanding and discussing their potential integration into daily clinical practice.

Methods: A thorough search of databases (Embase Ovid, Scopus, PubMed, Cochrane Library, and Web of Science) identified 6100 studies. After eliminating duplicates and screening titles and abstracts, 25 studies underwent full appraisal. Two reviewers assessed inclusion suitability, and study methodologies were evaluated using the Newcastle-Ottawa Scale (NOS) for observational studies and the modified Jadad Scoring Scale for randomized controlled trials. Ultimately, six studies published between 2002 and 2019, involving 869 participants, were included in the review.

Results: Out of the 6 fin. l papers selected, 5 were randomized trials, and 1 was a prospective study. Megestrol acetate (800 mg/d) proved to be more effective than dronabinol 2.5 mg twice a day in increasing appetite. Nabilone (at a dosage of 0.5 mg per day) did not show superiority over placebo in alleviating symptoms such as pain, nausea, loss of appetite, and weight. However, with a double dosage followed by 1.0 mg/6 weeks, after eight weeks of treatment, patients recorded a significant increase in calorie intake and carbohydrate consumption compared to the placebo group, with some patients also experiencing substantial weight gain. Regarding delta-9-tetrahydrocannabinol (THC), a weight increase of ≥10% was observed in 17.6% of patients with doses of 5 mg or 10 mg capsules daily, without significant side effects. Additionally, patients treated with THC 2.5 mg reported improved chemosensory perception and increased appetite before meals compared to placebo. No significant side effects were reported in older adults taking cannabinoids.

Conclusions: Cannabinoids offer promise in enhancing the quality of life for older individuals with active neoplastic disease. However, to establish comprehensive guidelines, further research with larger sample sizes is essential. Only through this approach can we fully grasp the potential and application of cannabinoids in addressing the nutritional concerns associated with neoplastic diseases.”

https://pubmed.ncbi.nlm.nih.gov/38917597/

“In patients with active neoplasia, cannabinoids increase weight, restore hunger and appetite.”

https://www.sciencedirect.com/science/article/pii/S1279770724003865?via%3Dihub

Chemical compounds, anti-tumor and anti-neuropathic pain effect of hemp essential oil in vivo

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“Hemp (Cannabis sativa L.), an annual dioecious plant, has shown extensive application in the fields of fibers, food, oil, medicine, etc.

Currently, most attention has been paid to the therapeutic properties of phytocannabinoids. However, the pharmaceutical research on essential oil from hemp is still lacking.

In this study, hemp essential oil (HEO) was extracted from hemp flowers and leaves, and the components were analyzed by GC-MS.

Quatitative analysis of three main compounds β-caryophyllene, β-caryophyllene oxide, α -humulene were determined by GC-FID. The anti-tumor and anti-neuropathic pain effects of HEO were evaluated.

In the paclitaxel induced neuropathic mice model, HEO reduced the serum level of inflammatory cytokines TNF-α to achieve the analgesic effect, which was tested by evaluating mechanical and thermal hyperalgesia. Further investigation with cannabinoid receptor 2 (CB2 R) antagonist AM630 revealed the mechanism of reversing mechanical hyperalgesia may be related to CB2 R.

In Lewis lung cancer grafted mice model, the tumor growth was significantly inhibited, the levels of tumor inflammatory cytokines TNF-α and IL-6 were downregulated, immune organ index was modified and immune-related CD4+, CD8+ T lymphocytes level, CD4+/CD8+ ratio were increased when administered with HEO.

These results reveal that HEO plays a role not only in tumor chemotherapy induced peripheral neuropathy treatment, but also in anti-tumor treatment which offers key information for new strategies in cancer treatment and provides reference for the medicinal development of hemp.”

https://pubmed.ncbi.nlm.nih.gov/38914272/

https://www.sciencedirect.com/science/article/abs/pii/S0367326X24002752?via%3Dihub

Effectiveness of Highly Purified Cannabidiol in Refractory and Super-Refractory Status Epilepticus: A Case Series

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“Introduction: Refractory and super-refractory status epilepticus are medical emergencies that must be promptly treated in consideration of their high mortality and morbidity rate. Nevertheless, the available evidence of effective treatment of these conditions is scarce. Among novel antiseizure medications (ASMs), highly purified cannabidiol (hpCBD) has shown noteworthy efficacy in reducing seizures in Lennox-Gastaut syndrome (LGS), Dravet syndrome (DS), and Tuberous Sclerosis Complex (TSC).

Case presentation: Here, we present two cases of effective use of hpCBD in both refractory and super- refractory status epilepticus. The administration of the nasogastric tube permitted the resolution of status epilepticus without adverse events. At 6-month follow-up, both patients were on hpCBD treatment, which continued to be efficacious for treating seizures.

Conclusion: According to our experience, hpCBD should be taken into consideration as an add-on therapy of RSE and SRSE while also considering the possibility of maintaining this treatment during the follow-up of patients. However, more studies and real-world experiences are needed to better understand its effectiveness in this setting and the interaction with other ASMs.”

https://pubmed.ncbi.nlm.nih.gov/38910424/

https://www.eurekaselect.com/article/141195

The Perspective of Cannabidiol in Psoriasis Therapy

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“Psoriasis is a chronic skin condition that can significantly impact the quality of life of those affected. As an autoimmune disease, it can lead to itchy, painful, and scaly patches on the skin. Although various treatments, including topical creams, phototherapy, and systemic medications, are currently available, they may not always offer effective relief and can have side effects. Researchers have thus been exploring the potential benefits of non-psychoactive compounds such as CBD, found in Cannabis sativa plants, for treating psoriasis. CBD treatment may reduce inflammation, oxidative stress, itching, abnormal proliferation of keratinocytes, and may increase hydration. This review aims to provide an overview of the existing literature on the potential uses of CBD for psoriasis treatment.”

https://pubmed.ncbi.nlm.nih.gov/38911997/

https://www.dovepress.com/the-perspective-of-cannabidiol-in-psoriasis-therapy-peer-reviewed-fulltext-article-PTT

Revitalizing polycystic ovary syndrome: The therapeutic impact of low-dose ∆ tetrahydrocannabinol-9 through reduction of oxidative stress and modulation of macrophage polarization

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“Objectives: Polycystic ovary syndrome (PCOS) is a complex metabolic and endocrine disorder associated with chronic inflammation. However, the effect of ∆ tetrahydrocannabinol-9 (THC) on PCOS has not been evaluated. Therefore, this study aimed to investigate the immunomodulatory effects of THC in an animal model of PCOS.

Materials and methods: Twenty female Sprague-Dawley rats, aged 4 weeks, were divided into four groups. The control group received a normal diet, the sham group received a vehicle (carboxymethyl cellulose), the PCOS group received a high-fat diet (HFD) for 16 weeks followed by letrozole for 4 weeks, and the THC group received an HFD for 16 weeks followed by letrozole+THC (0.02 mg/kg) for 4 weeks.

Results: The PCOS animals exhibited significantly higher levels of testosterone, insulin, triglycerides, and total cholesterol, along with elevated inflammatory and oxidative stress markers compared to the control group. Flow cytometry and real-time PCR analysis revealed an increase in M1 macrophage markers and a decrease in M2 macrophage markers compared to the control group. However, the administration of a low dose of THC mitigated these disturbances.

Conclusion: Low-dose THC improved inflammatory responses and shifted the balance of M1/M2 macrophage markers towards M2 macrophages in the animal model of PCOS.”

https://pubmed.ncbi.nlm.nih.gov/38911246/

Hempseed protein-derived short- and medium-chain peptides and their multifunctional properties

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“Nowadays, the growing knowledge about the high nutritional value and potential functionality of hempseeds, the edible fruits of the Cannabis sativa L. plant, has sparked a surge in interest in exploring the worthwhile attributes of hempseed proteins and peptides. This trend aligns with the increasing popularity of hemp-based food, assuming a vital role in the global food chain. This chapter targets the nutritional and chemical composition of hempseed in terms of short- and medium-chain bioactive peptides. The analytical approaches for their characterization and multifunctional properties are summarized in detail. Moreover, the processing, functionality, and application of various hempseed protein products are discussed. In the final part of the chapter-for evaluating their propensity to be transported by intestinal cells-the transepithelial transport of peptides within hempseed protein hydrolysate is highlighted.”

https://pubmed.ncbi.nlm.nih.gov/38906589/

“Cannabis sativa L. is an annual, dioecious plant within the Cannabinaceae family. It has a well-documented history of serving as a source of both food and medicine over the ages.”

https://www.sciencedirect.com/science/article/abs/pii/S1043452624000020?via%3Dihub