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Cannabis and cannabinoids

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https://www.readbyqxmd.com/read/29238589/cannabidiol-restores-intestinal-barrier-dysfunction-and-inhibits-the-apoptotic-process-induced-by-clostridium-difficile-toxin-a-in-caco-2-cells
#1
Stefano Gigli, Luisa Seguella, Marcella Pesce, Eugenia Bruzzese, Alessandra D'Alessandro, Rosario Cuomo, Luca Steardo, Giovanni Sarnelli, Giuseppe Esposito
Background: Clostridium difficile toxin A is responsible for colonic damage observed in infected patients. Drugs able to restore Clostridium difficile toxin A-induced toxicity have the potential to improve the recovery of infected patients. Cannabidiol is a non-psychotropic component of Cannabis sativa, which has been demonstrated to protect enterocytes against chemical and/or inflammatory damage and to restore intestinal mucosa integrity. Objective: The purpose of this study was to evaluate (a) the anti-apoptotic effect and (b) the mechanisms by which cannabidiol protects mucosal integrity in Caco-2 cells exposed to Clostridium difficile toxin A...
December 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29237190/determination-of-acid-and-neutral-cannabinoids-in-extracts-of-different-strains-of-cannabis-sativa-using-gc-fid
#2
Elsayed A Ibrahim, Waseem Gul, Shahbaz W Gul, Brandon J Stamper, Ghada M Hadad, Randa A Abdel Salam, Amany K Ibrahim, Safwat A Ahmed, Suman Chandra, Hemant Lata, Mohamed M Radwan, Mahmoud A ElSohly
Cannabis (Cannabis sativa L.) is an annual herbaceous plant that belongs to the family Cannabaceae. Trans-Δ9-tetrahydrocannabinol (Δ9-THC) and cannabidiol (CBD) are the two major phytocannabinoids accounting for over 40% of the cannabis plant extracts, depending on the variety. At the University of Mississippi, different strains of C. sativa, with different concentration ratios of CBD and Δ9-THC, have been tissue cultured via micropropagation and cultivated. A GC-FID method has been developed and validated for the qualitative and quantitative analysis of acid and neutral cannabinoids in C...
December 13, 2017: Planta Medica
https://www.readbyqxmd.com/read/29218644/cardiovascular-complications-of-marijuana-and-related-substances-a-review
#3
REVIEW
Amitoj Singh, Sajeev Saluja, Akshat Kumar, Sahil Agrawal, Munveer Thind, Sudip Nanda, Jamshid Shirani
The recreational use of cannabis has sharply increased in recent years in parallel with its legalization and decriminalization in several countries. Commonly, the traditional cannabis has been replaced by potent synthetic cannabinoids and cannabimimetics in various forms. Despite overwhelming public perception of the safety of these substances, an increasing number of serious cardiovascular adverse events have been reported in temporal relation to recreational cannabis use. These have included sudden cardiac death, vascular (coronary, cerebral and peripheral) events, arrhythmias and stress cardiomyopathy among others...
December 7, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/29202510/extraction-method-and-analysis-of-cannabinoids-in-cannabis-olive-oil-preparations
#4
Antonella Casiraghi, Gabriella Roda, Eleonora Casagni, Cecilia Cristina, Umberto Maria Musazzi, Silvia Franzè, Paolo Rocco, Claudia Giuliani, Gelsomina Fico, Paola Minghetti, Veniero Gambaro
Recently, an increasing number of pharmacists had to supply medicinal products based on Cannabis sativa L. (Cannabaceae), prescribed by physicians to individual patients. Cannabis olive oil preparation is the first choice as a concentrated extract of cannabinoids, even though standardized operative conditions for obtaining it are still not available. In this work, the impact of temperature and extraction time on the concentration of active principles was studied to harmonize the different compounding methods, optimize the extraction process, and reduce the variability among preparations...
December 4, 2017: Planta Medica
https://www.readbyqxmd.com/read/29192667/cannabis-and-cannabinoids-from-synapse-to-society
#5
EDITORIAL
Margaret Haney, Matthew N Hill
No abstract text is available yet for this article.
January 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29189144/therapeutic-use-of-%C3%AE-9-thc-and-cannabidiol-evaluation-of-a-new-extraction-procedure-for-the-preparation-of-cannabis-based-olive-oil
#6
Luca Morini, Giorgio Porro, Maurizio Liso, Angelo Groppi
BACKGROUND: Since 2013 Cannabis-based preparations, containing the two main cannabinoids of interest, Δ9-tetrahydrocannabinol (THC), and cannabidiol (CBD), can be used for therapeutic purposes, such as palliative care, neurodegenerative disorder treatment and other therapies. The preparations may consist of a drug partition in sachets, capsules or through the extraction in certified olive oil. OBJECTIVE: the aims of the study were: a) to develop and validate a new liquid chromatographic-tandem mass spectrometric (LC-MS/MS) method for the identification and quantification of THC and CBD in olive oil; b) to evaluate the extraction efficiency and reproducibility of a new commercial extractor on the market...
November 29, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29189142/interpretation-of-cannabis-findings-in-the-hair-of-very-young-children-mission-impossible
#7
Pascal Kintz, Alice Ameline, Aude Eibel, Annie Geraut, Audrey Farrugia, Laurent Berthelon, Jean-Sebastien Raul
BACKGROUND: Hair has been suggested since the middle of the 90's to be a suitable matrix to document repetitive exposure to cannabis. Because it is possible to detect ∆9-tetrahydrocannabinol (THC), cannabinol (CBN) and cannabidiol (CBD) in cannabis smoke, the identification of the metabolite, 11-nor-∆9-tetrahydrocannabinol carboxylic acid (THC-COOH) has been considered to allow the discrimination of active use. OBJECTIVE: Whereas the detection of drugs in a child's hair unambiguously shows drug handling in the environment of the child, it is difficult to distinguish between systemic incorporation into hair after ingestion or inhalation and external deposition into hair from smoke, dust, or contaminated surfaces...
November 29, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29182999/analysis-of-cannabinoids-in-commercial-hemp-seed-oil-and-decarboxylation-kinetics-studies-of-cannabidiolic-acid-cbda
#8
Cinzia Citti, Barbara Pacchetti, Maria Angela Vandelli, Flavio Forni, Giuseppe Cannazza
Hemp seed oil from Cannabis sativa L. is a very rich natural source of important nutrients, not only polyunsaturated fatty acids and proteins, but also terpenes and cannabinoids, which contribute to the overall beneficial effects of the oil. Hence, it is important to have an analytical method for the determination of these components in commercial samples. At the same time, it is also important to assess the safety of the product in terms of amount of any psychoactive cannabinoid present therein. This work presents the development and validation of a highly sensitive, selective and rapid HPLC-UV method for the qualitative and quantitative determination of the main cannabinoids, namely cannabidiolic acid (CBDA), tetrahydrocannabinolic acid (THCA), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabigerol (CBG) and cannabidivarin (CBDV), present in 13 commercial hemp seed oils...
November 20, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29176975/targeting-cannabinoid-signaling-in-the-immune-system-high-ly-exciting-questions-possibilities-and-challenges
#9
REVIEW
Attila Oláh, Zoltán Szekanecz, Tamás Bíró
It is well known that certain active ingredients of the plants of Cannabis genus, i.e., the "phytocannabinoids" [pCBs; e.g., (-)-trans-Δ9-tetrahydrocannabinol (THC), (-)-cannabidiol, etc.] can influence a wide array of biological processes, and the human body is able to produce endogenous analogs of these substances ["endocannabinoids" (eCB), e.g., arachidonoylethanolamine (anandamide, AEA), 2-arachidonoylglycerol (2-AG), etc.]. These ligands, together with multiple receptors (e.g., CB1 and CB2 cannabinoid receptors, etc...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29173162/oral-fluid-vs-urine-analysis-to-monitor-synthetic-cannabinoids-and-classic-drugs-recent-exposure
#10
Marta Concheiro, Vincent Blandino, Jillian Wetzel, Jiyoung Kim, Petrit Haxhi
BACKGROUND: Urine is a common biological sample to monitor recent drug exposure, and oral fluid is an alternative matrix of increasing interest in clinical and forensic toxicology. Limited data are available about oral fluid vs. urine drug disposition, especially for synthetic cannabinoids. OBJECTIVE: To compare urine and oral fluid as biological matrices to monitor recent drug exposure among HIV-infected homeless individuals. METHODS: Seventy matched urine and oral fluid samples were collected from 13 participants...
November 21, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29173160/simple-and-fast-gas-chromatography-mass-spectrometry-assay-to-assess-delta-9-tetrahydrocannabinol-and-cannabidiol-in-dogs-treated-with-medical-cannabis-for-canine-epilepsy
#11
Maria Concetta Rotolo, Silvia Graziano, Manuela Pellegrini, Daniele Corlazzoli, Lucia Antinori, Laura Porcarelli, Simona Pichini
BACKGROUND: To date, an increasing number of pet owners, especially in the USA, are using cannabis-derived products containing generally delta 9-tetrahydrocannabinol (THC) and cannabidiol (CBD) to help their animals' health. Unfortunately, studies on the clinical use of cannabinoids in veterinary medicine are still limited, and the application of analytical methodologies for the determination of cannabinoids in animal (especially dog) biological matrices such as plasma, is still missing...
November 21, 2017: Current Pharmaceutical Biotechnology
https://www.readbyqxmd.com/read/29169951/regulation-of-noradrenergic-and-serotonergic-systems-by-cannabinoids-relevance-to-cannabinoid-induced-effects
#12
REVIEW
Aitziber Mendiguren, Erik Aostri, Joseba Pineda
The cannabinoid system is composed of Gi/o protein-coupled cannabinoid type 1 receptor (CB1) and cannabinoid type 2 (CB2) receptor and endogenous compounds. The CB1 receptor is widely distributed in the central nervous system (CNS) and it is involved in the regulation of common physiological functions. At the neuronal level, the CB1 receptor is mainly placed at GABAergic and glutamatergic axon terminals, where it modulates excitatory and inhibitory synapses. To date, the involvement of CB2 receptor in the regulation of neurotransmission in the CNS has not been clearly shown...
November 20, 2017: Life Sciences
https://www.readbyqxmd.com/read/29165726/erratum-evaluation-of-cannabinoid-and-terpenoid-content-cannabis-flower-compared-to-supercritical-co2-concentrate
#13
Michelle Sexton, Kyle Shelton, Pam Haley, Mike West
No abstract text is available yet for this article.
November 17, 2017: Planta Medica
https://www.readbyqxmd.com/read/29164599/neurocognition-and-subjective-experience-following-acute-doses-of-the-synthetic-cannabinoid-jwh-018-a-phase-1-placebo-controlled-pilot-study
#14
Eef L Theunissen, Nadia R P W Hutten, Natasha L Mason, Stefan W Toennes, Kim P C Kuypers, Eliza B de Sousa Fernandes Perna, Johannes G Ramaekers
BACKGROUND AND PURPOSE: Synthetic cannabinoids (often sold as Spice or K2) have become a very popular alternative to cannabis due to the easy access and portrayed safety. Controlled studies on the behavioral effects of synthetic cannabinoids are currently lacking, which hampers risk assessments of these compounds. EXPERIMENTAL APPROACH: This is a first attempt to assess the influence of a synthetic cannabinoid, JWH-018, on neurocognition and subjective experience in humans after controlled administration...
November 22, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29161743/pharmacological-foundations-of-cannabis-chemovars
#15
Mark A Lewis, Ethan B Russo, Kevin M Smith
An advanced Mendelian Cannabis breeding program has been developed utilizing chemical markers to maximize the yield of phytocannabinoids and terpenoids with the aim to improve therapeutic efficacy and safety. Cannabis is often divided into several categories based on cannabinoid content. Type I, Δ(9)-tetrahydrocannabinol-predominant, is the prevalent offering in both medical and recreational marketplaces. In recent years, the therapeutic benefits of cannabidiol have been better recognized, leading to the promotion of additional chemovars: Type II, Cannabis that contains both Δ(9)-tetrahydrocannabinol and cannabidiol, and cannabidiol-predominant Type III Cannabis...
November 21, 2017: Planta Medica
https://www.readbyqxmd.com/read/29161035/synthesis-of-photoswitchable-%C3%AE-9-tetrahydrocannabinol-derivatives-enables-optical-control-of-cannabinoid-receptor-1-signaling
#16
Matthias Westphal, Michael Andreas Schafroth, Roman Sarott, Michael Imhof, Christian Bold, Philipp Leippe, Amey Dhopeshwarkar, Jessica Grandner, Vsevolod Katritch, Ken Mackie, Dirk Trauner, Erick M Carreira, James Allen Frank
The cannabinoid receptor 1 (CB1) is an inhibitory G protein-coupled receptor abundantly expressed in the central nerv-ous system. It has rich pharmacology and largely accounts for the recreational use of cannabis. We describe efficient asymmetric syntheses of four photoswitchable Δ(9)-tetrahydrocannabinol derivatives (azo-THCs) from a central building block 3-Br-THC. Using electrophysiology and a FRET-based cAMP assay, two compounds are identified as potent CB1 agonists that change their effect upon illumination...
November 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29160600/current-evidence-of-cannabinoid-based-analgesia-obtained-in-preclinical-and-human-experimental-settings
#17
REVIEW
J Lötsch, I Weyer-Menkhoff, I Tegeder
Cannabinoids have a long record of recreational and medical use and become increasingly approved for pain therapy. This development is based on preclinical and human experimental research summarized in this review. Cannabinoid CB1 receptors are widely expressed throughout the nociceptive system. Their activation by endogenous or exogenous cannabinoids modulates the release of neurotransmitters. This is reflected in antinociceptive effects of cannabinoids in preclinical models of inflammatory, cancer and neuropathic pain, and by nociceptive hypersensitivity of cannabinoid receptor-deficient mice...
November 21, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29156899/modulating-the-endocannabinoid-pathway-as-treatment-for-peripheral-neuropathic-pain-a-selected-review-of-preclinical-studies
#18
Shannon O'Hearn, Patrick Diaz, Bo Angela Wan, Carlo DeAngelis, Nicholas Lao, Leila Malek, Edward Chow, Alexia Blake
Chemotherapy-induced neuropathic pain is a distressing and commonly occurring side effect of many commonly used chemotherapeutic agents, which in some cases may prevent cancer patients from being able to complete their treatment. Cannabinoid based therapies have the potential to manage or even prevent pain associated with this syndrome. Pre-clinical animal studies that investigate the modulation of the endocannabinoid system (endogenous cannabinoid pathway) are being conducted to better understand the mechanisms behind this phenomenon...
August 31, 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/29151103/immunoregulatory-role-of-cannabinoids-during-infectious-disease
#19
Rosalía Hernández-Cervantes, Mónica Méndez-Díaz, Óscar Prospéro-García, Jorge Morales-Montor
Although the endocannabinoid system (ECS) is involved in the regulation of several physiological processes, including sleep and the immune response, its role during infections has not been fully studied. It is well known that the use of this drug increases susceptibility to infections because of the impact on the modulation of the immune system. Concerning the medicinal or recreational use of marijuana, its influence on the course of an infection, whether this has been caused by bacteria, viruses, parasites, and to a lesser degree, fungi, has been reported...
November 18, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/29134767/availability-and-approval-of-cannabis-based-medicines-for-chronic-pain-management-and-palliative-supportive-care-in-europe-a-survey-of-the-status-in-the-chapters-of-the-european-pain-federation
#20
N Krcevski-Skvarc, C Wells, W Häuser
BACKGROUND: There is considerable public and political interest in the use of cannabis products for medical purposes. METHODS: The task force of the European Pain Federation (EFIC) conducted a survey with its national chapters representatives on the status of approval of all types of cannabis-based medicines, the covering of costs and the availability of a position paper of a national medical association on the use of medical cannabis for chronic pain and for symptom control in palliative/supportive care...
November 13, 2017: European Journal of Pain: EJP
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