“This article discusses the controversial but promising topic of medical marijuana (MM) use in the pediatric population with epilepsy. Included is the importance of MM throughout history, the pharmacodynamics and pharmacokinetics, and a literature review that provides anecdotal evidence of the positive effect MM has on children suffering from seizures. From this literature review, dosage for treatment and management is provided. Also discussed is the recent FDA-approved pharmaceutical grade CBD product, Epidiolex, for treatment of two pediatric-onset seizure syndromes, Lennox-Gastaut and Dravet. Clinical implications regarding adverse side effects of MM use are also discussed. The aim of this article is to arm providers with contemporary knowledge on the risks and benefits of MM use in the pediatric population with epilepsy, which may boost their skills and confidence in educating and advocating for children with seizures. This novel, ever-changing medication is in the forefront of history and the news, making this topic especially important for review.”
Tag Archives: CBD
l-α-Lysophosphatidylinositol (LPI) aggravates myocardial ischemia/reperfusion injury via a GPR55/ROCK-dependent pathway.
“The phospholipid l-α-lysophosphatidylinositol (LPI), an endogenous ligand for GPR55, is elevated in patients with acute coronary syndrome, and a GPR55 antagonist cannabidiol (CBD) reduces experimental ischemia/reperfusion (I/R) injury.”
https://www.ncbi.nlm.nih.gov/pubmed/31149342
https://bpspubs.onlinelibrary.wiley.com/doi/full/10.1002/prp2.487
The pharmacological reduction of hippocampal neurogenesis attenuates the protective effects of cannabidiol on cocaine voluntary intake.
“The administration of cannabidiol has shown promising evidence in the treatment of some neuropsychiatric disorders, including cocaine addiction. However, little information is available as to the mechanisms by which cannabidiol reduces drug use and compulsive seeking.
We investigated the role of adult hippocampal neurogenesis in reducing cocaine voluntary intake produced by repeated cannabidiol treatment in mice.
Cannabidiol (20 mg/kg) reduced cocaine self-administration behaviour acquisition and total cocaine intake and enhanced adult hippocampal neurogenesis.
The present study confirms that adult hippocampal neurogenesis is one of the mechanisms by which cannabidiol lowers cocaine reinforcement and demonstrates the functional implication of adult hippocampal neurogenesis in cocaine voluntary consumption in mice.
Such findings highlight the possible use of cannabidiol for developing new pharmacotherapies to manage cocaine use disorders.”
Cannabidiol, cannabinol and their combinations act as peripheral analgesics in a rat model of myofascial pain.
“This study investigated whether local intramuscular injection of non-psychoactive cannabinoids, cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC) and their combinations can decrease nerve growth factor (NGF)-induced masticatory muscle sensitization in female rats.
RESULTS:
In behavioral experiments, CBD (5 mg/ml) or CBN (1 mg/ml) decreased NGF-induced mechanical sensitization. Combinations of CBD/CBN induced a longer-lasting reduction of mechanical sensitization than either compound alone. No significant change in mechanical withdrawal threshold was observed in the contralateral masseter muscles and no impairment of motor function was found with the inverted screen test after any of the treatments. Consistent with behavioral results, CBD (5 mg/ml), CBN (1 mg/ml) and the combination of CBD/CBN (1:1 mg/ml) increased the mechanical threshold of masseter muscle mechanoreceptors. However, combining CBD/CBN (5:1 mg/ml) at a higher ratio reduced the duration of this effect. This may indicate an inhibitory effect of higher concentrations of CBD on CBN.
CONCLUSIONS:
These results suggest that peripheral application of these non-psychoactive cannabinoids may provide analgesic relief for chronic muscle pain disorders such as temporomandibular disorders and fibromyalgia without central side effects.”
https://www.ncbi.nlm.nih.gov/pubmed/31158702
https://www.sciencedirect.com/science/article/pii/S0003996919302249?via%3Dihub
Prolonged Cannabidiol Treatment Lacks on Detrimental Effects on Memory, Motor Performance and Anxiety in C57BL/6J Mice.
“The Cannabis plant contains more than 100 currently known phytocannabinoids. Regarding the rising consumption of the non-psychotropic phytocannabinoid cannabidiol (CBD) in people’s everyday life (e.g., beauty products, food and beverages), the importance of studies on the influence of CBD on healthy humans and rodents is evident. Therefore, the behavioral profile of CBD was investigated with a battery of behavioral tests, including motor, anxiety, and memory tests after prolonged CBD treatment. Adult C57Bl/6J wildtype (WT) mice were daily intraperitoneally injected with 20 mg/kg CBD for 6 weeks starting at two different points of ages (3 months and 5 months) to compare the influence of prolonged CBD treatment with a washout period (former group) to the effects of long term CBD treatment (current group). Our results show that CBD treatment does not influence motor performance on an accelerating Rotarod test, while it also results in a lower locomotor activity in the open field (OF). No influence of CBD on spatial learning and long term memory in the Morris Water Maze (MWM) was observed. Memory in the Novel Object Recognition test (NORT) was unaffected by CBD treatment. Two different anxiety tests revealed that CBD does not affect anxiety behavior in the Dark-Light Box (DLB) and OF test. Although, anxiety is altered by current CBD treatment in the Elevated Plus Maze (EPM). Moreover, CBD-treated C57Bl/6J mice showed an unaltered acoustic startle response (ASR) compared to vehicle-treated mice. However, current CBD treatment impairs prepulse inhibition (PPI), a test to analyze sensorimotor gating. Furthermore, prolonged CBD treatment did not affect the hippocampal neuron number. Our results demonstrate that prolonged CBD treatment has no negative effect on the behavior of adult C57Bl/6J mice.”
https://www.ncbi.nlm.nih.gov/pubmed/31133833
https://www.frontiersin.org/articles/10.3389/fnbeh.2019.00094/full
Effects of cannabidiol on alcohol-related outcomes: A review of preclinical and human research.
“This article reviews preclinical and human studies examining the effects of CBD administration on alcohol responses. Preliminary preclinical results suggest that CBD can attenuate alcohol consumption and potentially protect against certain harmful effects of alcohol, such as liver and brain damage.”
Therapeutic prospects of cannabidiol for alcohol use disorder and alcohol-related damages on the liver and the brain
“Cannabidiol (CBD) is a natural compound of cannabis, which exerts complex and widespread immunomodulatory, antioxidant, anxiolytic, and antiepileptic properties. Many experimental data suggest that CBD could have several types of application in alcohol use disorder (AUD) and alcohol-related damage on the brain and the liver.
Experimental studies converge to find that CBD reduces the overall level of alcohol drinking in animal models of AUD by reducing ethanol intake, motivation for ethanol, relapse, and by decreasing anxiety and impulsivity. Moreover, CBD has been shown to reduce alcohol-related steatosis and fibrosis in the liver by reducing lipid accumulation, stimulating autophagy, modulating inflammation, reducing oxidative stress, and inducing death of activated hepatic stellate cells. Last, CBD has been found to reduce alcohol-related brain damage, preventing neuronal loss by its antioxidant and immunomodulatory properties.
CBD could directly reduce alcohol drinking in subjects with AUD. But other original applications warrant human trials in this population. By reducing alcohol-related processes of steatosis in the liver, and brain alcohol-related damage, CBD could improve both the hepatic and neurocognitive outcomes of subjects with AUD, regardless of the individual drinking trajectories. This might pave the way for testing new harm reduction approaches in AUD, i.e., for protecting the organs of subjects with an ongoing AUD.”
https://www.frontiersin.org/articles/10.3389/fphar.2019.00627/abstract
Cannabidiol for the Reduction of Cue-Induced Craving and Anxiety in Drug-Abstinent Individuals With Heroin Use Disorder: A Double-Blind Randomized Placebo-Controlled Trial
“Despite the staggering consequences of the opioid epidemic, limited nonopioid medication options have been developed to treat this medical and public health crisis.
This study investigated the potential of cannabidiol (CBD), a nonintoxicating phytocannabinoid, to reduce cue-induced craving and anxiety, two critical features of addiction that often contribute to relapse and continued drug use, in drug-abstinent individuals with heroin use disorder.
Acute CBD administration, in contrast to placebo, significantly reduced both craving and anxiety induced by the presentation of salient drug cues compared with neutral cues. CBD also showed significant protracted effects on these measures 7 days after the final short-term (3-day) CBD exposure. In addition, CBD reduced the drug cue–induced physiological measures of heart rate and salivary cortisol levels. There were no significant effects on cognition, and there were no serious adverse effects.
CBD’s potential to reduce cue-induced craving and anxiety provides a strong basis for further investigation of this phytocannabinoid as a treatment option for opioid use disorder.”
https://ajp.psychiatryonline.org/doi/10.1176/appi.ajp.2019.18101191
“Study finds CBD effective in treating heroin addiction” https://www.cnn.com/2019/05/21/health/heroin-opioid-addiction-cbd-study/index.html
“CBD oil may help limit cravings and anxiety in heroin users, study finds” https://www.nbcnews.com/health/health-news/cbd-oil-may-help-limit-cravings-anxiety-heroin-users-study-n1007856
“Cannabis Compound Eases Anxiety and Cravings of Heroin Addiction” https://www.scientificamerican.com/article/cannabis-compound-eases-anxiety-and-cravings-of-heroin-addiction/?redirect=1
Effect of cannabidiol on muscarinic neurotransmission in the pre-frontal cortex and hippocampus of the poly I:C rat model of schizophrenia.
“Cognitive impairment is a core symptom of schizophrenia; however, current antipsychotic drugs have limited efficacy to treat these symptoms and can cause serious side-effects, highlighting a need for novel therapeutics.
Cannabidiol (CBD) is a non-intoxicating phytocannabinoid that has demonstrated pro-cognitive effects in multiple disease states, including a maternal immune activation (poly I:C) model of schizophrenia, but the mechanisms underlying the efficacy of CBD require investigation.
We examined alterations in markers of muscarinic neurotransmission in the pre-frontal cortex (PFC) and hippocampus (HPC) following CBD treatment.
These findings demonstrate that CBD can normalise muscarinic neurotransmission imbalances in male poly I:C offspring in regions of the brain implicated in cognition.”
https://www.ncbi.nlm.nih.gov/pubmed/31108177
https://www.sciencedirect.com/science/article/pii/S0278584618308121?via%3Dihub
CBD: A New Hope?
“The nonpsychoactive phytocannabinoid, CBD, was recently approved by the Food and Drug Administration for the treatment of children with drug-resistant epilepsy. This milestone opens new avenues for cannabinoid research. In this Viewpoint, we provide an overview of recent progress in the field highlighting molecular insights into CBD’s mechanism of action, as well as its therapeutic potential.”