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

Image result for american journal of psychiatry“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.

 Conclusions:

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.

Progress in Neuro-Psychopharmacology and Biological Psychiatry

“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

Supplementation of Cannabis sativa L. leaf powder accelerates functional recovery and ameliorates haemoglobin level following an induced injury to sciatic nerve in mouse model.

Image result for Pak J Pharm Sci.

“Peripheral nerve injury is a common condition with a multitude of signs and symptoms. The major consequence of injury is limited physical activity. Presently, we are lacking effective therapies for PNI and it is need of the hour is to explore potential remedies for the recovery of functional loss.

Here, we have investigated the role of crude Cannabis sativa L. leaf powder in promoting functions recovery, in mouse model subjected to a traumatic sciatic nerve injury.

A dose of 200mg/kg of the body weight per day was administered orally from the day of nerve crush till the end of the experiment. The motor functions were evaluated by measuring sciatic functional index, muscle grip strength and muscle mass; whereas the sensory functions were assessed by hotplate test. The haematology and serum analyses were carried out to estimate the effect of treatment on the systemic index and oxidative stress.

The gain of motor functions was significantly improved and was early noticed in the treated mice. Restoration of muscle mass and elevated haemoglobin level were statistically significant in the treatment group.

This study indicates that Cannabis sativa L. supplementation accelerates the motor functions recovery after nerve compression injury.”

https://www.ncbi.nlm.nih.gov/pubmed/31103973

Cannabis: From a Plant That Modulates Feeding Behaviors toward Developing Selective Inhibitors of the Peripheral Endocannabinoid System for the Treatment of Obesity and Metabolic Syndrome.

toxins-logo “In this review, we discuss the role of the endocannabinoid (eCB) system in regulating energy and metabolic homeostasis. Endocannabinoids, via activating the cannabinoid type-1 receptor (CB1R), are commonly known as mediators of the thrifty phenotype hypothesis due to their activity in the central nervous system, which in turn regulates food intake and underlies the development of metabolic syndrome. Indeed, these findings led to the clinical testing of globally acting CB1R blockers for obesity and various metabolic complications. However, their therapeutic potential was halted due to centrally mediated adverse effects. Recent observations that highlighted the key role of the peripheral eCB system in metabolic regulation led to the preclinical development of various novel compounds that block CB1R only in peripheral organs with very limited brain penetration and without causing behavioral side effects. These unique molecules, which effectively ameliorate obesity, type II diabetes, fatty liver, insulin resistance, and chronic kidney disease in several animal models, are likely to be further developed in the clinic and may revive the therapeutic potential of blocking CB1R once again.”

https://www.ncbi.nlm.nih.gov/pubmed/31096702

https://www.mdpi.com/2072-6651/11/5/275

CBD: A New Hope?

 ACS Medicinal Chemistry Letters“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.”

https://www.ncbi.nlm.nih.gov/pubmed/31097982

https://pubs.acs.org/doi/10.1021/acsmedchemlett.9b00127

Cannabinoid-induced relief of hypermotility in a rat model of the irritable bowel syndrome.

Publication cover image

“Cannabinoid-2 receptor agonists may be useful in treating intestinal motility disorders.”

https://www.ncbi.nlm.nih.gov/pubmed/31094052

https://onlinelibrary.wiley.com/doi/abs/10.1111/nmo.13613

Cannabidivarin completely rescues cognitive deficits and delays neurological and motor defects in male Mecp2 mutant mice.

SAGE Journals“Recent evidence suggests that 2-week treatment with the non-psychotomimetic cannabinoid cannabidivarin (CBDV) could be beneficial towards neurological and social deficits in early symptomatic Mecp2 mutant mice, a model of Rett syndrome (RTT). The aim of this study was to provide further insights into the efficacy of CBDV in Mecp2-null mice using a lifelong treatment schedule to evaluate its effect on recognition memory and neurological defects in both early and advanced stages of the phenotype progression. CBDV rescues recognition memory deficits in Mecp2 mutant mice and delays the appearance of neurological defects. CBDV administration exerts an enduring rescue of memory deficits in Mecp2 mutant mice. CBDV delays neurological defects but this effect is only transient.” https://www.ncbi.nlm.nih.gov/pubmed/31084246

“Chronic treatment with the phytocannabinoid Cannabidivarin (CBDV) rescues behavioural alterations and brain atrophy in a mouse model of Rett syndrome.”  https://www.ncbi.nlm.nih.gov/pubmed/30056123

Randomized blinded controlled clinical trial to assess the effect of oral cannabidiol administration in addition to conventional antiepileptic treatment on seizure frequency in dogs with intractable idiopathic epilepsy.

AVMA logo
“Dogs in the CBD group had a significant reduction in seizure frequency, compared with the placebo group”

Endocannabinoid contributions to alcohol habits and motivation: Relevance to treatment.

Addiction Biology banner“Individuals with alcohol use disorder exhibit compulsive habitual behaviors that are thought to be, in part, a consequence of chronic and persistent use of alcohol.

The endocannabinoid system plays a critical role in habit learning and in ethanol self-administration, but the role of this neuromodulatory system in the expression of habitual alcohol seeking is unknown.

Here, we investigated the role of the endocannabinoid system in established alcohol habits using contingency degradation in male C57BL/6 mice.

These results demonstrate an important role for endocannabinoid signaling in the motivation to seek ethanol, in ethanol-motivated habits, and suggest that pharmacological manipulations of endocannabinoid signaling could be effective therapeutics for treating alcohol use disorder.”

https://www.ncbi.nlm.nih.gov/pubmed/31056846

https://onlinelibrary.wiley.com/doi/abs/10.1111/adb.12768

Using Cannabis to Treat Cancer-Related Pain.

Seminars in Oncology Nursing

“OBJECTIVE: To describe which cannabinoids and terpenes are effective for treating pain.

CONCLUSION: Cannabis and cannabinoid medicines, as modulators of the endocannabinoid system, offer novel therapeutic options for the treatment of cancer-related pain, not only for patients who do not respond to conventional therapies, but also for patients who prefer to try cannabis as a first treatment option.

IMPLICATIONS FOR NURSING PRACTICE: Understanding the endocannabinoid system, cannabinoids, terpenes, routes of administration, potential drug interactions, clinical implications, and potential side effects ensures nurses can better assist patients who use cannabis for the treatment of cancer pain.”

https://www.ncbi.nlm.nih.gov/pubmed/31053395

https://www.sciencedirect.com/science/article/pii/S0749208119300609?via%3Dihub