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https://www.readbyqxmd.com/read/28918484/drug-herb-interactions-in-the-elderly-patient-with-ibd-a-growing-concern
#1
REVIEW
Haider Rahman, Marina Kim, Galen Leung, Jesse A Green, Seymour Katz
Inflammatory bowel disease (IBD), which includes conditions such as Crohn's disease and ulcerative colitis, is becoming more prevalent with the elderly being the fastest growing group. Parallel to this, there is an increasing interest in the use of complementary and alternative medicine (CAM). Nearly half of patients with IBD have used CAM at one time. The elderly patients, however, are burdened by comorbid conditions, polypharmacy, and altered functional status. With increasing use of complementary and alternative medicine in our elderly patients with IBD, it is vital for the provider to provide counsel on drug-herb potential interactions...
September 16, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28916100/improving-wastewater-based-epidemiology-to-estimate-cannabis-use-focus-on-the-initial-aspects-of-the-analytical-procedure
#2
Ana Causanilles, Jose Antonio Baz-Lomba, Daniel A Burgard, Erik Emke, Iria González-Mariño, Ivona Krizman-Matasic, Angela Li, Arndís S C Löve, Ann Kathrin McCall, Rosa Montes, Alexander L N van Nuijs, Christoph Ort, José B Quintana, Ivan Senta, Senka Terzic, Félix Hernandez, Pim de Voogt, Lubertus Bijlsma
Wastewater-based epidemiology is a promising and complementary tool for estimating drug use by the general population, based on the quantitative analysis of specific human metabolites of illicit drugs in urban wastewater. Cannabis is the most commonly used illicit drug and of high interest for epidemiologists. However, the inclusion of its main human urinary metabolite 11-nor-9-carboxy-Δ(9)-tetrahydrocannabinol (THC-COOH) in wastewater-based epidemiology has presented several challenges and concentrations seem to depend heavily on environmental factors, sample preparation and analyses, commonly resulting in an underestimation...
October 2, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28905873/cardiovascular-effects-of-marijuana-and-synthetic-cannabinoids-the-good-the-bad-and-the-ugly
#3
REVIEW
Pal Pacher, Sabine Steffens, György Haskó, Thomas H Schindler, George Kunos
Dysregulation of the endogenous lipid mediators endocannabinoids and their G-protein-coupled cannabinoid receptors 1 and 2 (CB1R and CB2R) has been implicated in a variety of cardiovascular pathologies. Activation of CB1R facilitates the development of cardiometabolic disease, whereas activation of CB2R (expressed primarily in immune cells) exerts anti-inflammatory effects. The psychoactive constituent of marijuana, Δ(9)-tetrahydrocannabinol (THC), is an agonist of both CB1R and CB2R, and exerts its psychoactive and adverse cardiovascular effects through the activation of CB1R in the central nervous and cardiovascular systems...
September 14, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28905207/role-of-vasopressin-v1a-receptor-in-%C3%A2-9-tetrahydrocannabinol-induced-cataleptic-immobilization-in-mice
#4
Nobuaki Egashira, Emi Koushi, Takayuki Myose, Akito Tanoue, Kenichi Mishima, Ryota Tsuchihashi, Junei Kinjo, Hiroyuki Tanaka, Satoshi Morimoto, Katsunori Iwasaki
RATIONALE: Cannabis is a widely used illicit substance. ∆(9)-tetrahydrocannabinol (THC), the major psychoactive component of cannabis, is known to cause catalepsy in rodents. Recent studies have shown that vasopressin V1a and V1b receptors are widely distributed in the central nervous system and are capable of influencing a wide variety of brain functions such as social behavior, emotionality, and learning and memory. OBJECTIVES: The present study was designed to examine the possible involvement of V1a and V1b receptors in THC-induced catalepsy-like immobilization...
September 14, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28900286/adolescent-thc-exposure-causes-enduring-prefrontal-cortical-disruption-of-gabaergic-inhibition-and-dysregulation-of-sub-cortical-dopamine-function
#5
Justine Renard, Hanna J Szkudlarek, Cecilia P Kramar, Christina E L Jobson, Kyra Moura, Walter J Rushlow, Steven R Laviolette
Chronic adolescent marijuana use has been linked to the later development of psychiatric diseases such as schizophrenia. GABAergic hypofunction in the prefrontal cortex (PFC) is a cardinal pathological feature of schizophrenia and may be a mechanism by which the PFC loses its ability to regulate sub-cortical dopamine (DA) resulting in schizophrenia-like neuropsychopathology. In the present study, we exposed adolescent rats to Δ-9-tetra-hydrocannabinol (THC), the psychoactive component in marijuana. At adulthood, we characterized the functionality of PFC GABAergic neurotransmission and its regulation of sub-cortical DA function using molecular, behavioral and in-vivo electrophysiological analyses...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893436/death-after-25c-nbome-and-25h-nbome-consumption
#6
Luca Morini, Marzia Bernini, Sara Vezzoli, Mario Restori, Matteo Moretti, Stefano Crenna, Pietro Papa, Carlo Locatelli, Antonio Marco Maria Osculati, Claudia Vignali, Angelo Groppi
A teenager male was found dead in a waterway after he was spotted jumping off into the water stream. The boy looked agitated and confused after a party with friends. At the gathering place, investigators seized packages of blotter papers. A complete autopsy and a histological evaluation of the main tissues were performed; although the death occurred by drowning, the prosecutor requested toxicological exams, in order to evaluate the potential role of drugs of abuse in the episode. Blood (both peripheral and central) and urine samples as well as seized blotter papers were collected and analyzed as follows...
September 5, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28892757/11-nor-9-carboxy-%C3%AE-9-tetrahydrocannabinol-glucuronide-exhibits-acyl-migration-isomers
#7
Stephanie Hanisch, Alexander Paulke, Stefan W Toennes
11-nor-Δ(9)-Tetrahydrocannabinol-9-carboxylic acid glucuronide (THCCOOH-glucuronide) is an 1-β-O-acyl glucuronide which degrades not only to 11-nor-9-carboxy-Δ(9)-THC (THCCOOH) but, additionally, to an isomer with a currently unknown structure. The present study was carried out to examine whether acyl glucuronide isomers are formed by acyl migration and if they are involved in formation of this isomer. THCCOOH-glucuronide was incubated in phosphate buffer (pH 7.4, 37°C, 7days) and a variety of glucuronide cleavage procedures were performed...
August 31, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28890215/piperine-pro-nanolipospheres-as-a-novel-oral-delivery-system-of-cannabinoids-pharmacokinetic-evaluation-in-healthy-volunteers-in-comparison-to-buccal-spray-administration
#8
Irina Cherniakov, Dvora Izgelov, Dinorah Barasch, Elyad Davidson, Abraham J Domb, Amnon Hoffman
Nowadays, therapeutic indications for cannabinoids, specifically Δ(9)-tetrahydrocannabinol (THC) and Cannabidiol (CBD) are widening. However, the oral consumption of the molecules is very limited due to their highly lipophilic nature that leads to poor solubility at the aqueous environment. Additionally, THC and CBD are prone to extensive first pass mechanisms. These absorption obstacles render the molecules with low and variable oral bioavailability. To overcome these limitations we designed and developed the advanced pro-nanolipospheres (PNL) formulation...
September 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28885457/cannabis-constituent-synergy-in-a-mouse-neuropathic-pain-model
#9
Sherelle L Casey, Nicholas Atwal, Christopher W Vaughan
Cannabis and its psychoactive constituent Δ9-tetrahydrocannabinol (THC) have efficacy against neuropathic pain however, this is hampered by their side-effects. It has been suggested that co-administration with another major constituent cannabidiol (CBD) might enhance the analgesic actions of THC and minimise its deleterious side-effects. We examined the basis for this phytocannabinoid interaction in a mouse chronic constriction injury (CCI) model of neuropathic pain. Acute systemic administration of THC dose-dependently reduced CCI-induced mechanical and cold allodynia, but also produced motor incoordination, catalepsy and sedation...
September 1, 2017: Pain
https://www.readbyqxmd.com/read/28882919/a-randomised-controlled-cross-over-double-blind-pilot-study-protocol-on-thc-cbd-oromucosal-spray-efficacy-as-an-add-on-therapy-for-post-stroke-spasticity
#10
Lucio Marinelli, Maurizio Balestrino, Laura Mori, Luca Puce, Gian Marco Rosa, Laura Giorello, Antonio Currà, Francesco Fattapposta, Carlo Serrati, Carlo Gandolfo, Giovanni Abbruzzese, Carlo Trompetto
INTRODUCTION: Stroke is the most disabling neurological disorder and often causes spasticity. Transmucosal cannabinoids (tetrahydrocannabinol and cannabidiol (THC:CBD), Sativex) is currently available to treat spasticity-associated symptoms in patients with multiple sclerosis. Cannabinoids are being considered useful also in the treatment of pain, nausea and epilepsy, but may bear and increased risk for cardiovascular events. Spasticity is often assessed with subjective and clinical rating scales, which are unable to measure the increased excitability of the monosynaptic reflex, considered the hallmark of spasticity...
September 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28878698/synthetic-cathinone-and-cannabinoid-designer-drugs-pose-a-major-risk-for-public-health
#11
REVIEW
Aviv M Weinstein, Paola Rosca, Liana Fattore, Edythe D London
As part of an increasing worldwide use of designer drugs, recent use of compounds containing cathinones and synthetic cannabinoids is especially prevalent. Here, we reviewed current literature on the prevalence, epidemiology, bio-behavioral effects, and detection of these compounds. Gender differences and clinical effects will also be examined. Chronic use of synthetic cathinone compounds can have major effects on the central nervous system and can induce acute psychosis, hypomania, paranoid ideation, and delusions, similar to the effects of other better-known amphetamine-type stimulants...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28875990/clinical-and-pre-clinical-evidence-for-functional-interactions-of-cannabidiol-and-%C3%AE-9-tetrahydrocannabinol
#12
Douglas L Boggs, Jacques D Nguyen, Daralyn Morgenson, Michael A Taffe, Mohini Ranganathan
The plant Cannabis sativa, commonly called cannabis or marijuana, has been used for its psychotropic and mind-altering side effects for millennia. There has been growing attention in recent years on its potential therapeutic efficacy as municipalities and legislative bodies in the United States, Canada, and other countries grapple with enacting policy to facilitate the use of cannabis or its constituents for medical purposes. There are over 550 chemical compounds and over 100 phytocannabinoids isolated from cannabis, including Δ(9)-tetrahydrocannabinol (THC) and Cannabidiol (CBD)...
September 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28875876/commercial-herbal-medicines-used-as-african-traditional-medicines-ngoma-herbal-tonic-immune-booster-interferes-with-a-rapid-urine-drug-screening-test
#13
M E Mothibe, E Osuch, C P Kahler-Venter
BACKGROUND: The prevalent use of African traditional medicine by the general public has been reported. With commercialisation and marketing, some of the herbal medicines (HMs) used are readily available over the counter, most of them promoted as immune boosters. These commercial HMs have not been taken through clinical trials and other tests that would validate their composition and safety, and other properties such as their effect on laboratory diagnostic tests. OBJECTIVE: To investigate the cross-reactivity of selected HMs with commonly tested drugs of abuse (DoA) using a qualitative rapid urinalysis assay...
August 25, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28874764/natural-%C3%A2-9-thc-and-synthetic-jwh-018-cannabinoids-induce-seizures-by-acting-through-the-cannabinoid-cb1-receptor
#14
Olga Malyshevskaya, Kosuke Aritake, Mahesh K Kaushik, Nahoko Uchiyama, Yoan Cherasse, Ruri Kikura-Hanajiri, Yoshihiro Urade
Natural cannabinoids and their synthetic substitutes are the most widely used recreational drugs. Numerous clinical cases describe acute toxic symptoms and neurological consequences following inhalation of the mixture of synthetic cannabinoids known as "Spice." Here we report that an intraperitoneal administration of the natural cannabinoid Δ(9)-tetrahydrocannabinol (10 mg/kg), one of the main constituent of marijuana, or the synthetic cannabinoid JWH-018 (2.5 mg/kg) triggered electrographic seizures in mice, recorded by electroencephalography and videography...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28866904/a-selective-review-of-medical-cannabis-in-cancer-pain-management
#15
Alexia Blake, Bo Angela Wan, Leila Malek, Carlo DeAngelis, Patrick Diaz, Nicholas Lao, Edward Chow, Shannon O'Hearn
Insufficient management of cancer-associated chronic and neuropathic pain adversely affects patient quality of life. Patients who do not respond well to opioid analgesics, or have severe side effects from the use of traditional analgesics are in need of alternative therapeutic op-tions. Anecdotal evidence suggests that medical cannabis has potential to effectively manage pain in this patient population. This review presents a selection of representative clinical studies, from small pilot studies conducted in 1975, to double-blind placebo-controlled trials conducted in 2014 that evaluated the efficacy of cannabinoid-based therapies containing tetrahydrocannabinol (THC) and cannabidiol (CBD) for reducing cancer-associated pain...
August 23, 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28866743/effects-of-oral-%C3%AE-9-tetrahydrocannabinol-on-the-cerebral-processing-of-olfactory-input-in-healthy-non-addicted-subjects
#16
Carmen Walter, Bruno G Oertel, Lisa Felden, Ulrike Nöth, Johannes Vermehren, Ralf Deichmann, Jörn Lötsch
BACKGROUND: Considering the increasing acknowledgment of the human sense of smell as a significant component of the quality of life, olfactory drug effects gain potential clinical importance. A recent observation in a human experimental context indicated that Δ(9)-tetrahydrocannabinol (THC) impaired the subject's performance in olfactory tests. To further analyze the role of THC in human olfaction, the present report addresses its effects on the central processing of olfactory stimuli...
September 2, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28861511/explorative-placebo-controlled-double-blind-intervention-study-with-low-doses-of-inhaled-%C3%AE-9-tetrahydrocannabinol-and-cannabidiol-reveals-no-effect-on-sweet-taste-intensity-perception-and-liking-in-humans
#17
Suzanne E M de Bruijn, Cees de Graaf, Renger F Witkamp, Gerry Jager
Introduction: The endocannabinoid system (ECS) plays an important role in food reward. For example, in humans, liking of palatable foods is assumed to be modulated by endocannabinoid activity. Studies in rodents suggest that the ECS also plays a role in sweet taste intensity perception, but it is unknown to what extent this can be extrapolated to humans. Therefore, this study aimed at elucidating whether Δ9-tetrahydrocannabinol (THC) or cannabidiol (CBD) affects sweet taste intensity perception and liking in humans, potentially resulting in alterations in food preferences...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28861508/affinity-and-efficacy-studies-of-tetrahydrocannabinolic-acid-a-at-cannabinoid-receptor-types-one-and-two
#18
John M McPartland, Christa MacDonald, Michelle Young, Phillip S Grant, Daniel P Furkert, Michelle Glass
Introduction:Cannabis biosynthesizes Δ(9)-tetrahydrocannabinolic acid (THCA-A), which decarboxylates into Δ(9)-tetrahydrocannabinol (THC). There is growing interest in the therapeutic use of THCA-A, but its clinical application may be hampered by instability. THCA-A lacks cannabimimetic effects; we hypothesize that it has little binding affinity at cannabinoid receptor 1 (CB1). Materials and Methods: Purity of certified reference standards were tested with high performance liquid chromatography (HPLC). Binding affinity of THCA-A and THC at human (h) CB1 and hCB2 was measured in competition binding assays, using transfected HEK cells and [(3)H]CP55,940...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28861507/a-conversion-of-oral-cannabidiol-to-delta9-tetrahydrocannabinol-seems-not-to-occur-in-humans
#19
Gerhard Nahler, Franjo Grotenhermen, Antonio Waldo Zuardi, José A S Crippa
Cannabidiol (CBD), a major cannabinoid of hemp, does not bind to CB1 receptors and is therefore devoid of psychotomimetic properties. Under acidic conditions, CBD can be transformed to delta9-tetrahydrocannabinol (THC) and other cannabinoids. It has been argued that this may occur also after oral administration in humans. However, the experimental conversion of CBD to THC and delta8-THC in simulated gastric fluid (SGF) is a highly artificial approach that deviates significantly from physiological conditions in the stomach; therefore, SGF does not allow an extrapolation to in vivo conditions...
2017: Cannabis and Cannabinoid Research
https://www.readbyqxmd.com/read/28861506/the-clinical-significance-of-endocannabinoids-in-endometriosis-pain-management
#20
REVIEW
Jerome Bouaziz, Alexandra Bar On, Daniel S Seidman, David Soriano
Introduction: Patients with endometriosis often suffer from diffuse and poorly localized severe pain. The current pain management strategies include medical and hormonal therapy, as well as surgery. Medical management of pain is often insufficient and is associated with high rate of recurrence. Better pain management is therefore of urgent need. Methods: Among the various candidates, the endocannabinoid system (ECS) has recently emerged as a relevant pharmacological target for the management of endometriosis-related pain...
2017: Cannabis and Cannabinoid Research
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