Cannabidiol repairs behavioral and brain disturbances in a model of fetal alcohol spectrum disorder

Pharmacological Research

“Fetal alcohol spectrum disorder (FASD) includes neuropsychiatric disturbances related to gestational and lactational ethanol exposure. Available treatments are minimal and do not modulate ethanol-induced damage. Developing animal models simulating FASD is essential for understanding the underlying brain alterations and searching for efficient therapeutic approaches. The main goal of this study was to evaluate the effects of early and chronic cannabidiol (CBD) administration on offspring exposed to an animal model of FASD. Ethanol gavage (3g/kg/12h, p.o.) was administered to C57BL/6J female mice, with a previous history of alcohol consumption, between gestational day 7 and postnatal day 21. On the weaning day, pups were separated by sex, and CBD administration began (30mg/kg/day, i.p.). After 4-6 weeks of treatment, behavioral and neurobiological changes were analyzed. Mice exposed to the animal model of FASD showed higher anxiogenic and depressive-like behaviors and cognitive impairment that were evaluated through several experimental tests. These behaviors were accompanied by alterations in the gene, cellular and metabolomic targets. CBD administration normalized FASD model-induced emotional and cognitive disturbances, gene expression, and cellular changes with sex-dependent differences. CBD modulates the metabolomic changes detected in the hippocampus and prefrontal cortex. Interestingly, no changes were found in mitochondria or the oxidative status of the cells. These results suggest that the early and repeated administration of CBD modulated the long-lasting behavioral, gene and protein alterations induced by the FASD model, encouraging the possibility of performing clinical trials to evaluate the effects of CBD in children affected with FASD.”

https://pubmed.ncbi.nlm.nih.gov/36642113/

“The results of the present study reveal that the early and chronic administration of CBD repairs the emotional and cognitive alterations observed in male and female mice exposed to the animal model of FASD. Likewise, CBD modulates sex-dependently the gene expression changes and metabolomic targets affected by the model exposure. Interestingly, the data suggest the absence of mitochondrial and oxidative targets in CBD-induced modulation, pointing out that lipid and protein metabolism could be another pathway involved in the cellular reparation observed after CBD chronic administration. The modulation of Pparβ/δ gene expression could be one of the multiple targets involved in CBD’s induced cellular reparation and behavioral modulation. However, further studies are required to explore the real implication of this target in CBD’s mechanism of action in this model of FASD. Taken together, these results strongly stimulate the possibility of performing clinical trials to evaluate the effects of CBD in children affected with FASD.”

https://www.sciencedirect.com/science/article/pii/S1043661823000117?via%3Dihub

Selected Seeds as Sources of Bioactive Compounds with Diverse Biological Activities

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“Seeds contain a variety of phytochemicals that exhibit a wide range of biological activities. Plant-derived compounds are often investigated for their antioxidant, anti-inflammatory, immunomodulatory, hypoglycemic, anti-hypercholesterolemic, anti-hypertensive, anti-platelet, anti-apoptotic, anti-nociceptive, antibacterial, antiviral, anticancer, hepatoprotective, or neuroprotective properties.

In this review, we have described the chemical content and biological activity of seeds from eight selected plant species-blackberry (Rubus fruticosus L.), black raspberry (Rubus coreanus Miq.), grape (Vitis vinifera L.), Moringa oleifera Lam., sea buckthorn (Hippophae rhamnoides L.), Gac (Momordica cochinchinensis Sprenger), hemp (Cannabis sativa L.), and sacha inchi (Plukenetia volubilis L). This review is based on studies identified in electronic databases, including PubMed, ScienceDirect, and SCOPUS.

Numerous preclinical, and some clinical studies have found that extracts, fractions, oil, flour, proteins, polysaccharides, or purified chemical compounds isolated from the seeds of these plants display promising, health-promoting effects, and could be utilized in drug development, or to make nutraceuticals and functional foods. Despite that, many of these properties have been studied only in vitro, and it’s unsure if their effects would be relevant in vivo as well, so there is a need for more animal studies and clinical trials that would help determine if they could be applied in disease prevention or treatment.”

https://pubmed.ncbi.nlm.nih.gov/36615843/

“In conclusion, seeds are a source of many promising compounds that have the potential to be implemented in the prevention or treatment of diseases in the future, but the process of introducing them in conventional medicine must be preceded by a thorough in vivo investigation of their effectiveness and safety.”

https://www.mdpi.com/2072-6643/15/1/187

Is marijuana a foe of male sexuality? Data from a large cohort of men with sexual dysfunction

“Background: Although it has been assumed that chronic cannabis use may have an unfavorable impact on male sexual function and its metabolic correlates, evidence from clinical studies remains inconclusive.

Objective: To investigate the relationship between cannabis use and sexual behavior, anthropometrics and metabolic/vascular profiles in a large series of men evaluated for sexual dysfunction.

Methods: 4800 men (mean age 50.8 years) attending an andrology outpatient clinic for sexual dysfunction were studied. Sexual symptoms, hormonal, metabolic and instrumental (penile color Doppler ultrasound, PCDU) parameters were evaluated according to the reported habitual use of recreational substances (no use, 1-2 joints/week, >2 joints/week, and use of illicit drugs other than cannabis).

Results: When compared to nonusers, cannabis users were younger and exhibited a lower prevalence of comorbidities as well as better PCDU parameters, despite reporting higher alcohol and tobacco consumption. After adjustment for confounders, cannabis use was associated with a greater instability in the couple’s relationship and a higher frequency of masturbation. In addition, the group smoking >2 joints/week showed significantly lower body mass index (BMI) than both controls and users of substances other than cannabis. Men who reported using recreational drugs (either cannabis or other) exhibited significantly lower levels of both total and low-density lipoprotein cholesterol than nonusers. At the PCDU, smoking 1-2 joints/week was associated with significantly higher dynamic peak systolic velocity than both non-drug use and use of >2 joints/week. Prolactin levels were significantly higher in individuals smoking 1-2 joints/week and in those who used substances other than cannabis when compared to controls, whereas no difference in total testosterone levels was observed.

Discussion: In men with sexual dysfunction, mild cannabis consumption may be associated with a more favorable anthropometric and lipid profile and with a better penile arterial vascular response to intracavernous prostaglandin injection.”

https://pubmed.ncbi.nlm.nih.gov/36617843/

https://onlinelibrary.wiley.com/doi/10.1111/andr.13382

Medical Cannabis in Hand Surgery: A Review of the Current Evidence

The Journal of Hand Surgery

“Acute and chronic pain management remains an ongoing challenge for hand surgeons. This has been compounded by the ongoing opioid epidemic in the United States.

With the increasing legalization of medical and recreational cannabis throughout the United States and other countries, previous societal stigmas about this substance keep evolving, and recognition of medical cannabis as an opioid-sparing pain management alternative is growing. A review of the current literature demonstrates a strong interest from patients regarding the use of medical cannabis for pain control.

Current evidence demonstrates its efficacy and safety for chronic musculoskeletal and neuropathic pain. However, definitive conclusions regarding the efficacy of cannabis for pain control in hand and upper extremity conditions require continued investigation.

The purpose of this article is to provide a general review of the mechanism of medical cannabis and a scoping review of the current evidence for its efficacy, safety, and potential applicability in hand and upper extremity conditions.”

https://pubmed.ncbi.nlm.nih.gov/36609049/

https://www.jhandsurg.org/article/S0363-5023(22)00710-9/fulltext

Preoperative Preparation and Guidelines for Cannabis-Using Patients Undergoing Elective Surgery

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“Purpose: Appropriate preoperative screening techniques are needed to safely provide anesthesia to increasing numbers of cannabis using surgical patients.

Design: This was a quasi-experimental quality improvement project.

Methods: Preoperative identification of cannabis users by registered nurses (RNs) and certified registered nurse anesthetists (CRNAs) was compared to baseline identification rates. CRNAs’ compliance with evidenced base guidelines was recorded. Perioperative medication requirements were recorded and compared between cannabis-users and non-cannabis users.

Findings: Identification of cannabis users by CRNAs conducting preanesthetic assessments increased from 4.08% to 14.36% while RN identification improved from 11.22% to 13.81%. Compliance with identification guidelines was 69.2% among CRNAs.

There were no differences in anesthetic requirements, complications, or postanesthesia care unit (PACU) length of stay between cannabis users and non-users.

Conclusion: Preoperative identification of cannabis users allows for safer, more effective perioperative care by CRNAs, registered nurses, and surgical staff.”

https://pubmed.ncbi.nlm.nih.gov/36609136/

https://www.jopan.org/article/S1089-9472(22)00544-5/fulltext

Potential effects of cannabinoids on audiovestibular function: A narrative review

Frontiers - Crunchbase Company Profile & Funding

“The growing interest in the development of drugs that target the endocannabinoid system has extended to conditions that affect the audiovestibular pathway. The expression of cannabinoid (CB) receptors in that pathway has been widely demonstrated, indicating a therapeutic potential for drug development at this level. These medications may be beneficial for conditions such as noise-induced hearing loss, ototoxicity, or various forms of vertigo of central or peripheral origin. The therapeutic targets of interest include natural or synthetic compounds that act as CB1/CB2 receptor agonists/antagonists, and inhibitors of the endocannabinoid-degrading enzymes FAAH and MAGL. Furthermore, genetic variations implicated in the response to treatment and the development of related disorders such as epilepsy or migraine have been identified. Direct methods of administering these medications should be examined beyond the systemic strategy.”

https://pubmed.ncbi.nlm.nih.gov/36605398/

https://www.frontiersin.org/articles/10.3389/fphar.2022.1010296/full

Recreational cannabis legalization has had limited effects on a wide range of adult psychiatric and psychosocial outcomes

Psychological Medicine

“Background: The causal impacts of recreational cannabis legalization are not well understood due to the number of potential confounds. We sought to quantify possible causal effects of recreational cannabis legalization on substance use, substance use disorder, and psychosocial functioning, and whether vulnerable individuals are more susceptible to the effects of cannabis legalization than others.

Methods: We used a longitudinal, co-twin control design in 4043 twins (N = 240 pairs discordant on residence), first assessed in adolescence and now age 24-49, currently residing in states with different cannabis policies (40% resided in a recreationally legal state). We tested the effect of legalization on outcomes of interest and whether legalization interacts with established vulnerability factors (age, sex, or externalizing psychopathology).

Results: In the co-twin control design accounting for earlier cannabis frequency and alcohol use disorder (AUD) symptoms respectively, the twin living in a recreational state used cannabis on average more often (βw = 0.11, p = 1.3 × 10-3), and had fewer AUD symptoms (βw = -0.11, p = 6.7 × 10-3) than their co-twin living in an non-recreational state. Cannabis legalization was associated with no other adverse outcome in the co-twin design, including cannabis use disorder. No risk factor significantly interacted with legalization status to predict any outcome.

Conclusions: Recreational legalization was associated with increased cannabis use and decreased AUD symptoms but was not associated with other maladaptations. These effects were maintained within twin pairs discordant for residence. Moreover, vulnerabilities to cannabis use were not exacerbated by the legal cannabis environment. Future research may investigate causal links between cannabis consumption and outcomes.”

https://pubmed.ncbi.nlm.nih.gov/36601811/

https://www.cambridge.org/core/journals/psychological-medicine/article/abs/recreational-cannabis-legalization-has-had-limited-effects-on-a-wide-range-of-adult-psychiatric-and-psychosocial-outcomes/D4AB5EB78D588473A054877E05D45F16

Delta-9 tetrahydrocannabinol (THC) effects on the cortisol stress response in bovine granulosa cells

Toxicology in Vitro

“Maternal stress can result in changes in the hypothalamic-pituitary-adrenal (HPA) axis and lead to stress-related behaviours in offspring. Under physiological conditions, delta-9 tetrahydrocannabinol (THC) appears to be detrimental for fertility. However, cannabis is also commonly used for stress-relief. THC acts on the endocannabinoid receptors in granulosa cells (GCs), which affects oocyte competency. The objective of this study was to evaluate the effects of THC on in vitro bovine granulosa cell viability, apoptosis, and stress response pathway. GCs were cultured in vitro in the presence of clinically relevant therapeutic and recreational plasma doses of THC. Cortisol doses reflecting normal and elevated plasma levels were used to evaluate the effects of THC under induced stress in vitro. No effect of THC was observed on cell viability or apoptosis. High and low cortisol concentrations caused significant increases in 11β-HSD1 mRNA expression (n = 6, p < 0.0001). Interestingly, when combined with high [THC], there was a significant decrease in 11β-HSD1 expression compared to high and low cortisol treatments alone (p < 0.001, p < 0.05). GR expression was unaffected by cortisol treatments, and low [THC] treatment maintained increased expression in the presence of high and low cortisol treatments (n = 6, p < 0.01, p < 0.0001). Our findings represent a foundation to obtain useful data for evaluating THC potential therapeutic benefit.”

https://pubmed.ncbi.nlm.nih.gov/36596389/

“THC treatment does not affect granulosa cell viability or apoptosis.•

Cortisol treatments increase 11β-HSD1 gene expression.•

11β-HSD1 gene expression is reduced by THC treatment in combination with cortisol.•

Glucocorticoid receptor gene expression is increased in response to THC.”

https://www.sciencedirect.com/science/article/abs/pii/S0887233322002478?via%3Dihub


The effect of a long-term treatment with cannabidiol-rich hemp extract oil on the adenosinergic system of the zucker diabetic fatty (ZDF) rat atrium

Frontiers - Crunchbase Company Profile & Funding

“Cannabidiol (CBD), the most extensively studied non-intoxicating phytocannabinoid, has been attracting a lot of interest worldwide owing to its numerous beneficial effects. The aim of this study was to explore the effect that CBD exerts on the adenosinergic system of paced left atria isolated from obese type Zucker Diabetic Fatty (ZDF) rats, maintained on diabetogenic rat chow, received 60 mg/kg/day CBD or vehicle via gavage for 4 weeks.

We found that N6-cyclopentyladenosine (CPA), a relatively stable and poorly transported A1 adenosine receptor agonist, elicited a significantly weaker response in the CBD-treated group than in the vehicle-treated one. In contrast, adenosine, a quickly metabolized and transported adenosine receptor agonist, evoked a significantly stronger response in the CBD-treated group than in the vehicle-treated counterpart (excepting its highest concentrations). These results can be explained only with the adenosine transport inhibitory property of CBD (and not with its adenosine receptor agonist activity).

If all the effects of CBD are attributed to the interstitial adenosine accumulation caused by CBD in the myocardium, then a significantly increased adenosinergic activation can be assumed during the long-term oral CBD treatment, suggesting a considerably enhanced adenosinergic protection in the heart.

Considering that our results may have been influenced by A1 adenosine receptor downregulation due to the chronic interstitial adenosine accumulation, an adenosinergic activation smaller than it seemed cannot be excluded, but it was above the CBD-naïve level in every case. Additionally, this is the first study offering functional evidence about the adenosine transport inhibitory action of CBD in the myocardium.”

https://pubmed.ncbi.nlm.nih.gov/36588715/

https://www.frontiersin.org/articles/10.3389/fphar.2022.1043275/full

Treatment of Ovarian Hyperstimulation Syndrome in a Mouse Model by Cannabidiol, an Angiogenesis Pathway Inhibitor

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“Studies suggest that ovarian hyperstimulation syndrome (OHSS) can be treated by reducing the level of vascular endothelial growth factor (VEGF). However, due to the side effects of commercially available VEGF-reducing drugs, they can be ruled out as a suitable treatment for OHSS; therefore, researchers are looking for new medications to treat OHSS.

This study is aimed at investigating the effects of cannabidiol (CBD) in an OHSS model and to evaluate its efficacy in modulating the angiogenesis pathway and VEGF gene expression.

For this purpose, 32 female mice were randomly divided into four groups (eight mice per group): control group, group 2 with OHSS induction, group 3 receiving 32 nmol of dimethyl sulfoxide after OHSS induction, and group 4 receiving 30 mg/kg of CBD after OHSS induction. The animals’ body weight, ovarian weight, vascular permeability (VP), and ovarian follicle count were measured, and the levels of VEGF gene and protein expression in the peritoneal fluid were assessed.

Based on the results, CBD decreased the body and ovarian weights, VP, and corpus luteum number compared to the OHSS group (p < 0.05). The peritoneal VEGF gene and protein expression levels reduced in the CBD group compared to the OHSS group (p < 0.05). Also, CBD caused OHSS alleviation by suppressing VEGF expression and VP. Overall, CBD downregulated VEGF gene expression and improved VP in OHSS.”

https://pubmed.ncbi.nlm.nih.gov/36588534/

“Based on the present findings, CBD exerts potent antiangiogenic effects by influencing many associated pathways. It led to the alleviation of OHSS by suppressing VEGF gene expression and VP. Also, CBD downregulated VEGF expression and improved VP in OHSS. It is hoped that the current results can help reduce the symptoms and complications of OHSS and prevent the cancellation of IVF cycles.”

https://www.hindawi.com/journals/bmri/2022/1111777/