Used to classify article posts by terms used for medical conditions. It’s mostly aimed at practitioners and physicians.

Hippocampal differential expression underlying the neuroprotective effect of delta-9-tetrahydrocannabinol microdose on old mice

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Delta-9-tetrahydrocannabinol (THC) is the primary psychoactive compound of the cannabis plant and an exogenous ligand of the endocannabinoid system. In previous studies, we demonstrated that a single microdose of THC (0.002 mg/kg, 3–4 orders of magnitude lower than the standard dose for rodents) exerts distinct, long-term neuroprotection in model mice subjected to acute neurological insults. When administered to old, healthy mice, the THC microdose induced remarkable long-lasting (weeks) improvement in a wide range of cognitive functions, including significant morphological and biochemical brain alterations. To elucidate the mechanisms underlying these effects, we analyzed the gene expression of hippocampal samples from the model mice. Samples taken 5 days after THC treatment showed significant differential expression of genes associated with neurogenesis and brain development. In samples taken 5 weeks after treatment, the transcriptional signature was shifted to that of neuronal differentiation and survival. This study demonstrated the use of hippocampal transcriptome profiling in uncovering the molecular basis of the atypical, anti-aging effects of THC microdose treatment in old mice.

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Self-Reported Effects of Medical Cannabis on Illness Severity, Depression and Anxiety in Fibromyalgia Patients: A Large Retrospective Case Series

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To observe the effect of cannabis on fibromyalgia illness severity and related symptoms of depression and anxiety. A retrospective chart review was conducted to identify all patients who indicated fibromyalgia as a primary reason for seeking medical cannabis and completed at least 1 follow-up visit at Harvest Medicine clinics from January 2017 to July 2021. Data extracted from patient charts included Patient Health Questionnaire-9 (PHQ-9) scores, Generalized Anxiety Disorder-7 (GAD-7) scores, and self-reported illness severity scores. Changes in these scores between a patient’s intake and first follow-up visits were calculated and analyzed for significance overall and in different demographic subgroups. Patients for whom no follow-up data were available were excluded.

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An answered call for aid? Cannabinoid clinical framework for the opioid epidemic

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The opioid crisis continues in full force, as physicians and caregivers are desperate for resources to help patients with opioid use and chronic pain disorders find safer and more accessible non-opioid tools.

Main body
The purpose of this article is to review the current state of the opioid epidemic; the shifting picture of cannabinoids; and the research, policy, and current events that make opioid risk reduction an urgent public health challenge. The provided table contains an evidence-based clinical framework for the utilization of cannabinoids to treat patients with chronic pain who are dependent on opioids, seeking alternatives to opioids, and tapering opioids.

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Single-cell analyses reveal cannabidiol rewires tumor microenvironment via inhibiting alternative activation of macrophage and synergizes with anti-PD-1 in colon cancer

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Physicians’ ability to guide their patients on the use of medical cannabis can vary widely and is often shaped by their training, experiences, and the regulations and policies of their state. The goal of this qualitative study is to understand how prepared physicians are to certify and advise their patients to use medical cannabis. A secondary goal is to explore how physicians integrate certification into their clinical practices, and what factors shape their decisions and behaviors around certification.Using semi-structured interviews with 24 physicians authorized to certify patients to use medical cannabis in Pennsylvania, a state with a medical access only program, we explored how physi- cians are trained and set up their practices. Interviews were analyzed using a blend of directed and conventional, and summative content analysis.

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Physicians’ Perspectives on Their Training for and Role Within Pennsylvania’s Medical Cannabis Program

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Physicians’ ability to guide their patients on the use of medical cannabis can vary widely and is often shaped by their training, experiences, and the regulations and policies of their state. The goal of this qualitative study is to understand how prepared physicians are to certify and advise their patients to use medical cannabis. A secondary goal is to explore how physicians integrate certification into their clinical practices, and what factors shape their decisions and behaviors around certification.Using semi-structured interviews with 24 physicians authorized to certify patients to use medical cannabis in Pennsylvania, a state with a medical access only program, we explored how physi- cians are trained and set up their practices. Interviews were analyzed using a blend of directed and conventional, and summative content analysis.

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Shower power: a case report of cannabinoid hyperemesis syndrome

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Cannabis use is becoming more common globally, making it important for physicians to be aware of cannabinoid hyperemesis syndrome (CHS). CHS presents in chronic cannabis users, typically under the age of 50, and entails a severe cyclic nausea and vomiting pattern with abdominal pain but normal bowel habits. Symptoms typically predominate in the morning, are relieved by hot baths or showers, and resolve with discontinuation of cannabis use. This report details a case of a 32-year-old woman who presented to the emergency department at a large Canadian hospital with severe nausea, vomiting and a history of regular use of marijuana cigarettes. In an attempt to alleviate her symptoms she reported taking frequent hot baths and using as many as five marijuana cigarettes per day. The patient’s clinical presentation, chronic daily use of marijuana and relief of symptoms with hot baths led to the diagnosis of CHS. The antiemetic properties of cannabis are widely known in the community, meaning patients may not associate marijuana use with their symptoms. Additionally, cyclic vomiting syndrome is present in many different conditions, making physician awareness of this syndrome crucial. Recognition and diagnosis of this condition can prevent unnecessary, costly diagnostic tests, and provide an opportunity to initiate counselling on cessation.

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Cannabinoids in the treatment of cancer anorexia and cachexia: where have we been, where are we going?

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Cachexia-anorexia cancer syndrome remains an unmet clinical need with a dearth of treatment and no standard of care. Acting through the endocannabinoid system, cannabinoids are one potential cancer cachexia treatment. Herein the potential mechanisms for cannabinoids for cancer cachexia are discussed as are previous and ongoing clinical trials.

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Associations Between Monthly Cannabis Use and Myocardial Infarction in Middle-Aged Adults: NHANES 2009 to 2018

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Mechanistic research suggests using Cannabis sativa L. (cannabis or marijuana) may increase the risk of cardiometabolic disease, but observational studies investigating associations between cannabis use and myocardial infarction (MI) have reported inconsistent results. Cross-sectional National Health and Nutrition Examination Survey data from five 2-year cycles between 2009 and 2018 and representing 9,769 middle-aged adults (35 to 59 years old) were analyzed. Multivariable logistic regression models accounting for sampling weights and adjusting for cardiovascular risk factors were used to assess associations between a history of monthly cannabis use before MI and a subsequent MI. A quarter of respondents (n = 2,220) reported a history of monthly use >1 year before an MI. A history of MI was reported by 2.1% of all respondents and 3.2.% of those who reported a history of monthly use. In fully adjusted multivariable models, and compared with never use, a history of monthly cannabis use preceding an MI was not associated with an MI (odds ratio [OR] 0.78, 95% confidence interval [CI] 0.35 to 1.71). However, when stratified by recent use, the odds of MI were threefold greater (OR 2.98, 95% CI 1.08 to 8.60) when no use was reported within the past month than when use was reported within the past month. Duration of monthly use was also not significantly associated with MI, including monthly use >10 years (OR 0.78, 95% CI 0.30 to 2.01). In conclusion, in a representative sample of middle-aged US adults, a history of monthly cannabis use >1 year before an MI was not associated with a subsequent physician-diagnosed MI, except for threefold greater odds when cannabis was not used within the past month.

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Hippocampal differential expression underlying the neuroprotective effect of delta-9-tetrahydrocannabinol microdose on old mice

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Delta-9-tetrahydrocannabinol (THC) is the primary psychoactive compound of the cannabis plant and an exogenous ligand of the endocannabinoid system. In previous studies, we demonstrated that a single microdose of THC (0.002 mg/kg, 3–4 orders of magnitude lower than the standard dose for rodents) exerts distinct, long-term neuroprotection in model mice subjected to acute neurological insults. When administered to old, healthy mice, the THC microdose induced remarkable long-lasting (weeks) improvement in a wide range of cognitive functions, including significant morphological and biochemical brain alterations. To elucidate the mechanisms underlying these effects, we analyzed the gene expression of hippocampal samples from the model mice. Samples taken 5 days after THC treatment showed significant differential expression of genes associated with neurogenesis and brain development. In samples taken 5 weeks after treatment, the transcriptional signature was shifted to that of neuronal differentiation and survival. This study demonstrated the use of hippocampal transcriptome profiling in uncovering the molecular basis of the atypical, anti-aging effects of THC microdose treatment in old mice.

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Could cannabinoids provide a new hope for ovarian cancer patients?

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It is known that gynecological cancers remain a worldwide problem and as shown by the statistics, there is a need for new gynecological cancer treatments. Cannabinoids, the pharmacologically active compounds of the Cannabis sativa plant, have been used for many centuries by individuals as a symptomatic treatment to alleviate pain, nausea, vomiting, and to help stimulate appetite. Research has revealed that cannabinoids also exert anti-cancer activity such as anti-proliferative and pro-apoptotic effects through a variety of mechanisms. There is significant value in the development of these com- pounds as anti-cancer therapies in clinical practice as they do not produce the typi- cal toxic side effects that exist with conventional therapies and recent clinical trials have shown their great tolerability by patients at high doses. Cannabinoids can induce psychoactive effects that could limit their progression. Therefore, non-psychoactive cannabinoids are attracting pharmacological interest due to their inability to produce psychological effects. Recent studies have focussed on non-psychoactive cannabi- noids in ovarian cancer and have revealed promising pre-clinical results that indicate that these compounds may have potential benefits in the treatment of these cancers. However, there are still unanswered questions and research gaps that need to be addressed. This review summarizes the current understanding of this topic and iden- tifies the current gaps in knowledge that provide a useful direction for future work.

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Case Report: Cannabis Substitution Therapy for Prescription Opioid Detoxification

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Data continue to emerge on the use of cannabinoids for pain management, narcotic substitution, and heroin withdrawal. Building on previous studies, I present a case demonstrating the effectiveness of dose-controlled, oral cannabinoids to rapidly remove prescription opioids using cannabis substitution therapy. Cannabis is recreationally and medically legal in California. In accordance with regulations, medications containing cannabis must be measured, labeled, tested, and verified by a state-licensed third-party laboratory. The following case involves a patient who presented to the ReLeaf Institute in Los Angeles, California in February 2018 for evaluation of chronic pain, with the goal of removing prescription opioids via the use of cannabis medications.

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Cannabidiol and Intestinal Motility: a Systematic Review

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Cannabidiol (CBD) is a nonintoxicating cannabinoid extracted from the cannabis plant that is used for medicinal purposes. Ingestion of CBD is claimed to address several pathologies, including gastrointestinal disorders, although limited evidence has been generated thus far to substantiate many of its health claims. Nevertheless, CBD usage as an over-the-counter treatment for gastrointestinal disorders is likely to expand in response to increasing commercial availability, permissive legal status, and acceptance by consumers. This systematic review critically evaluates the knowledge boundaries of the published research on CBD, intestinal motility, and intestinal motility disorders. Research on CBD and intestinal motility is currently limited but does support the safety and efficacy of CBD for several therapeutic applications, including seizure disorders, inflammatory responses, and upper gastrointestinal dysfunction (ie, nausea and vomiting). CBD, therefore, may have therapeutic potential for addressing functional gastrointestinal disorders. The results of this review show promising in vitro and preclinical data supporting a role of CBD in intestinal motility. This includes improved gastrointestinal-related outcomes in murine models of colitis. These studies, however, vary by dose, delivery method, and CBD-extract composition. Clinical trials have yet to find a conclusive benefit of CBD on intestinal motility disorders, but these trials have been limited in scope. In addition, critical factors such as CBD dosing parameters have not yet been established. Further research will establish the efficacy of CBD in applications to address intestinal motility.

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