The purpose of this investigation is to determine whether regular marijuana use is related to history of kidney stones in the US population. Data were obtained from the National Health and Nutrition Examination Survey (NHANES) from 2009 to 2018. Kidney stone and marijuana use data were collected from self-report questionnaires. Multivariate logistic regression and multiple sensitivity analyses were applied to examine the relationship between marijuana usage and kidney stones.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-10-02 14:20:212023-10-02 14:20:21Association between marijuana use and kidney stone: a cross-sectional study of NHANES 2009 to 2018
Chronic neuropathic pain is a debilitating pain syndrome caused by damage to the nervous system that is poorly served by current medications. Given these problems, clinical studies have pursued extracts of the plant Cannabis sativa as alternative treatments for this condition. The vast majority of these studies have examined can- nabinoids which contain the psychoactive constituent delta-9-tetrahydrocannabinol (THC). While there have been some positive findings, meta-analyses of this clinical work indicates that this effectiveness is limited and hampered by side-effects. This review focuses on how recent preclinical studies have predicted the clinical limita- tions of THC-containing cannabis extracts, and importantly, point to how they might be improved. This work highlights the importance of targeting channels and recep- tors other than cannabinoid CB1 receptors which mediate many of the side-effects of cannabis.
The endocannabinoid system (ECS) is critically involved in the pathophysiology of Multiple Sclerosis (MS), a neuroinflammatory and neurodegenerative disease of the central nervous system (CNS). Over the past decade, the neuroprotective and anti-inflammatory effects of the ECS have been studied, and inhibiting the degradation of the endocannabinoid 2-arachydonoylglycerol (2-AG) is emerging as a promising strategy to counteract brain damage in MS. In this study, a systemic and preventive in vivo treatment with MAGLi 432, the reversible inhibitor of monoacylglycerol lipase (MAGLi), was performed in experimental autoimmune encephalomyelitis (EAE) mice. Clinical, biochemical, electrophysiological and immunofluorescence analyses were carried out to evaluate the impact of the drug on motor disability, neuroinflammation and synaptic damage. MAGLi 432 induced a less severe EAE disease, accompanied by an increase of 2-AG and a reduction of acid arachidonic (AA) and prostaglandins (PGs) brain levels.
Medical cannabis may provide a treatment option for chronic neuropathic pain. However, empirical disease-specific data are scarce. This is a retrospective observational study including 99 patients with chronic neuropathic pain. These patients received medical cannabis by means of inhaling dried flowers with tetrahydrocannabinol content of <12–22% at a maximal daily dose of 0.15–1 g. Up to six follow-ups were carried out at intervals of 4–6 weeks. Pain severity, sleep disturbance, general improvement, side effects, and therapy tolerance at the follow-up consultations were assessed in interviews and compared with the baseline data using non-parametric Wilcoxon signed-rank test.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-20 17:24:252023-09-20 17:25:25Medical Cannabis Alleviates Chronic Neuropathic Pain Effectively and Sustainably without Severe Adverse Effect: A Retrospective Study on 99 Cases
Highly purified cannabidiol (CBD) has a broad spectrum of action and could be useful for the treatment of drug resistant epilepsy regardless of etiology or syndrome. Multicenter retrospective study that evaluated the efficacy and safety of CBD for the treatment of drug resistant epilepsy of different etiologies in patients >2 years of age.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-20 17:08:122023-09-20 17:08:12Real-World evidence on the use of cannabidiol for the treatment of drug resistant epilepsy not related to Lennox-Gastaut syndrome, Dravet syndrome or Tuberous Sclerosis Complex
Hippocampal hyperperfusion has been observed in people at Clinical High Risk for Psychosis (CHR), is associated with adverse longitudinal outcomes and represents a potential treatment target for novel pharmacotherapies. Whether cannabidiol (CBD) has ameliorative effects on hippocampal blood flow (rCBF) in CHR patients remains unknown. Using a double-blind, parallel-group design, 33 CHR patients were randomised to a single oral 600mg dose of CBD or placebo; 19 healthy controls did not receive any drug. Hippocampal rCBF was measured using Arterial Spin Labelling. We examined differences relating to CHR status (controls vs placebo), effects of CBD in CHR (placebo vs CBD) and linear between-group relationships, such that placebo>CBD>controls or controls>CBD>placebo, using a combination of hypothesis-driven and exploratory wholebrain analyses.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-20 17:01:142023-09-20 17:01:14Increased Hippocampal Blood Flow in People at Clinical High Risk for Psychosis and Effects of Cannabidiol
In spite of the huge advancements in both diagnosis and interventions, hormone refractory prostate cancer (HRPC) remains a major hurdle in prostate cancer (PCa). Metabolic reprogramming plays a key role in PCa oncogenesis and resistance. However, the dynamics between metabolism and oncogenesis are not fully understood. Here, we demonstrate that two multi-target natural products, cannabidiol (CBD) and cannabigerol (CBG), suppress HRPC development in the TRansgenic Adenocarcinoma of the Mouse Prostate (TRAMP) model by reprogramming metabolic and oncogenic signaling. Mechanistically, CBD increases glycolytic capacity and inhibits oxidative phosphorylation in enzalutamide-resistant HRPC cells. This action of CBD originates from its effect on metabolic plasticity via modulation of VDAC1 and hexokinase II (HKII) coupling on the outer mitochondrial membrane, which leads to strong shifts of mitochondrial functions and oncogenic signaling pathways. The effect of CBG on enzalutamide-resistant HRPC cells was less pronounced than CBD and only partially attributable to its action on mitochondria. However, when optimally combined, these two cannabinoids exhibited strong anti-tumor effects in TRAMP mice, even when these had become refractory to enzalutamide, thus pointing to their therapeutical potential against PCa.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-16 11:18:482023-09-16 11:18:48Cannabidiol alters mitochondrial bioenergetics via VDAC1 and triggers cell death in hormone-refractory prostate cancer
Prostate cancer is the fifth leading cause of cancer death in men, responsible for over 375,000 deaths in 2020. Novel therapeutic strategies are needed to improve outcomes. Cannabinoids, chemical components of the cannabis plant, are a possible solution. Preclinical evidence demonstrates that cannabinoids can modulate several cancer hallmarks of many tumor types. However, the therapeutic potential of cannabinoids in prostate cancer has not yet been fully explored. The aim of this study was to investigate the antiproliferative and anti-invasive properties of cannabidiol (CBD) in prostate cancer cells in vitro. CBD inhibited cell viability and proliferation, accompanied by reduced expression of key cell cycle proteins, specifically cyclin D3 and cyclin-dependent kinases CDK2, CDK4, and CDK1, and inhibition of AKT phosphorylation. The effects of CBD on cell viability were not blocked by cannabinoid receptor antagonists, a transient receptor potential vanilloid 1 (TRPV1) channel blocker, or an agonist of the G-protein-coupled receptor GPR55, suggesting that CBD acts independently of these targets in prostate cancer cells. Furthermore, CBD reduced the invasiveness of highly metastatic PC-3 cells and increased protein expression of E-cadherin. The ability of CBD to inhibit prostate cancer cell proliferation and invasiveness suggests that CBD may have potential as a future chemotherapeutic agent.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-16 11:12:232023-09-16 11:12:23Cannabidiol Inhibits the Proliferation and Invasiveness of Prostate Cancer Cells
Phytocannabinoids have been shown to inhibit the aggregation and neurotoxicity of the neurotoxic Alzheimer’s disease protein beta amyloid (Aβ). We characterised the capacity of six phytocannabinoids: cannabichromene, cannabigerol, cannabinol, cannabidivarin, cannabidiol and Δ9-tetrahydrocannabinol, to disrupt Aβ aggregation and protect against Aβ-evoked neurotoxicity in PC12 cells. Neuroprotection against lipid peroxidation and Aβ-induced cytotoxicity was assessed using the MTT assay. Transmission electron microscopy was used to visualise phytocannabinoid effects on Aβ aggregation and fluorescence microscopy, with morphometrics and principal component analysis to assess PC12 cell morphology.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-16 11:06:552023-09-16 11:07:11The clinical and pathological significance of increased expression of the cannabinoid receptors CB-1R and CB-2R in patients with papillary thyroid carcinomas compared to benign thyroid lesions
Recreational cannabis use has recently gained considerable interest as an environmental risk factor that triggers the onset of psychosis. To date, however, the evidence that cannabis is associated with negative outcomes in individuals at clinical high risk (CHR) for psychosis is inconsistent. The present study tracked cannabis usage over a 2-year period and examined its associations with clinical and neurocognitive outcomes, along with medication rates. CHR youth who continuously used cannabis had higher neurocognition and social functioning over time, and decreased medication usage, relative to non-users. Surprisingly, clinical symptoms improved over time despite the medication decreases.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-06 04:54:072023-09-06 04:54:07Recreational cannabis use over time in individuals at clinical high risk for psychosis: Lack of associations with symptom, neurocognitive, functioning, and treatment patterns
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 compounds as anti-cancer therapies in clinical practice as they do not produce the typical toxic side effects that exist with conventional therapies and recent clinical trials have shown their great tolerability by patients at high doses.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-09-06 04:32:562023-09-06 04:32:56Could cannabinoids provide a new hope for ovarian cancer patients?
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.
https://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.png00Michelle Smithhttps://www.cannabisclinicians.org/wp-content/uploads/2020/06/scc_logo-long-R-2-1.pngMichelle Smith2023-08-26 09:48:072023-08-26 09:48:07Hippocampal differential expression underlying the neuroprotective effect of delta-9-tetrahydrocannabinol microdose on old mice
