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Marijuana and pain

Gordon D Ko, Sara L Bober, Sean Mindra, Jason M Moreau
Cannabis has been widely used as a medicinal agent in Eastern medicine with earliest evidence in ancient Chinese practice dating back to 2700 BC. Over time, the use of medical cannabis has been increasingly adopted by Western medicine and is thus a rapidly emerging field that all pain physicians need to be aware of. Several randomized controlled trials have shown a significant and dose-dependent relationship between neuropathic pain relief and tetrahydrocannabinol - the principal psychoactive component of cannabis...
2016: Journal of Pain Research
Caroline Turcotte, Marie-Renée Blanchet, Michel Laviolette, Nicolas Flamand
Since the identification of cannabinoid receptors in the 1990s, a research field has been dedicated to exploring the role of the cannabinoid system in immunity and the inflammatory response in human tissues and animal models. Although the cannabinoid system is present and crucial in many human tissues, studying the impact of cannabinoids on the lungs is particularly relevant because of their contact with exogenous cannabinoids in the context of marijuana consumption. In the past two decades, the scientific community has gathered a large body of evidence supporting that the activation of the cannabinoid system alleviates pain and reduces inflammation...
2016: Frontiers in Pharmacology
Diane Warden, Katherine Sanchez, Tracy Greer, Thomas Carmody, Robrina Walker, Adriane Dela Cruz, Marisa Toups, Chad Rethorst, Madhukar H Trivedi
This study aimed to determine if current comorbid psychiatric disorders differ in adults with cocaine use disorder, other stimulant (primarily methamphetamine) use disorder, or both, and identify demographic and clinical characteristics in those with increasing numbers of comorbid disorders. Baseline data from a randomized controlled trial beginning in residential settings (N=302) was used. Mood disorders were present in 33.6%, and anxiety disorders in 29.6%, with no differences among stimulant use disorder groups...
September 15, 2016: Psychiatry Research
Charles D Ciccone
Medical marijuana continues to gain acceptance and become legalized in many states. Various species of the marijuana plant have been cultivated, and this plant can contain up to 100 active compounds known as cannabinoids. Two cannabinoids seem the most clinically relevant: Δ(9)-tetrahydrocannabinol (THC), which tends to produce the psychotropic effects commonly associated with marijuana, and cannabidiol (CBD), which may produce therapeutic effects without appreciable psychoactive properties. Smoking marijuana, or ingesting extracts from the whole plant orally (in baked goods, teas, and so forth), introduces variable amounts of THC, CBD, and other minor cannabinoids into the systemic circulation where they ultimately reach the central and peripheral nervous systems...
September 22, 2016: Physical Therapy
Michelle R Peace, Karen E Butler, Carl E Wolf, Justin L Poklis, Alphonse Poklis
Since 24 states and the District of Columbia have legalized marijuana in some form, suppliers of legal marijuana have developed Cannabis sativa products for use in electronic cigarettes (e-cigarettes). Personal battery powered vaporizers, or e-cigarettes, were developed to deliver a nicotine vapor such that smokers could simulate smoking tobacco without the inherent pathology of inhaled tobacco smoke. The liquid formulations used in these devices are comprised of an active ingredient such as nicotine mixed with vegetable glycerin (VG) and/or propylene glycol (PG) and flavorings...
2016: Frontiers in Pharmacology
María C De Paoli, Dino Moretti, Carlos M Scolari Pasinato, Martín G Buncuga
The Henoch-Schönlein purpura (HSP) is a small vessel vasculitis with IgA immune complex deposition. The presentation in adults is rare and severe. Reported cases of HSP in patients infected with HIV are scarce. Neutrophil cytoplasmic antibodies (ANCA) are commonly found in other systemic vasculitis, but rarely in HSP and even more unusual the perinuclear pattern. Beside small vessel vasculitis, positivity of ANCA can be detected in a number of different pathological conditions in association with infectious processes, including HIV, or cocaine use, and especially the pattern of ANCA-p, associated with drugs, inflammatory bowel or autoimmune diseases...
2016: Medicina
Theodore J Cicero, Matthew S Ellis, Zachary A Kasper
Physicians are frequently thought to be a major source of opioids diverted for non-therapeutic purposes, largely because it is so difficult for them to discern which patients might abuse them. In this study we sought to determine whether those who were first exposed to an opioid through a physician's prescription, and subsequently developed a substance use disorder, had a history of using psychoactive drugs prior to abusing opioids. Patients entering one of 125 drug treatment programs across the country for opioid abuse were asked to provide detailed histories of psychoactive drug use prior to their initial opioid exposure...
August 15, 2016: Addictive Behaviors
Tatiana Bierut, Melissa J Krauss, Shaina J Sowles, Patricia A Cavazos-Rehg
With an increase in the legalization of recreational marijuana across the USA, advertising for marijuana products is more widespread, especially on the Internet where such practices pose a regulatory challenge. In this study, we examined the content of marijuana advertising on Weedmaps, a popular website that markets marijuana retailers online. A total of 146 recreational marijuana retailers in Colorado and Washington were examined on Weedmaps. We studied the age verification practices made in retailers' own websites, the presence of health claims they made about marijuana on Weedmaps, and the characteristics of followers of Weedmaps on social media sites...
August 17, 2016: Prevention Science: the Official Journal of the Society for Prevention Research
Wen-Juan Huang, Wei-Wei Chen, Xia Zhang
Depression and pain co-exist in almost 80% of patients and are associated with impaired health-related quality of life, often contributing to high mortality. However, the majority of patients who suffer from the comorbid depression and pain are not responsive to pharmacological treatments that address either pain or depression, making this comorbidity disorder a heavy burden on patients and society. In ancient times, this depression-pain comorbidity was treated using extracts of the Cannabis sativa plant, known now as marijuana and the mode of action of Δ9‑tetrahydrocannabinol, the active cannabinoid ingredient of marijuana, has only recently become known, with the identification of cannabinoid receptor type 1 (CB1) and CB2...
October 2016: Molecular Medicine Reports
Alan K Davis, Erin E Bonar, Mark A Ilgen, Maureen A Walton, Brian E Perron, Stephen T Chermack
Psychiatric symptoms, somatic problems, and co-occurring substance use have been associated with medical marijuana consumption among civilian patients with substance use disorders. It is possible that these factors may impact Veterans' ability to engage in or adhere to mental health and substance use disorder treatment. Therefore, we examined whether psychiatric functioning, substance use, and somatic problems were associated with medical marijuana use among Veterans receiving substance use disorder and/or mental health treatment...
December 2016: Addictive Behaviors
Anna Shmagel, Erin Krebs, Kristine Ensrud, Robert Foley
STUDY DESIGN: A population-based cross-sectional survey. OBJECTIVE: The aim of this study was to compare the prevalence of illicit drug use among US adults with and without chronic low back pain (cLBP). SUMMARY OF BACKGROUND DATA: Although addictive medications, such as opioids and benzodiazepines, are frequently prescribed to patients with cLBP, little is known about illicit drug use among Americans with cLBP. METHODS: We used data from the back pain survey, administered to a representative sample of US adults aged 20 to 69 years (N = 5103) during the 2009 to 2010 cycle of the National Health and Nutrition Examination Survey (NHANES)...
September 2016: Spine
Víctor Manuel Rivera-Olmos, Marisela C Parra-Bernal
The consumption of marijuana extracted from Cannabis sativa and indica plants involves an important cultural impact in Mexico. Their psychological stimulatory effect is widely recognized; their biochemical and molecular components interact with CB1 and CB2 (endocannabinoid system) receptors in various central nervous system structures (CNS) and immune cells. The psychoactive element Δ-9-tetrahydrocannabinol (THC) can be reproduced synthetically. Systematic reviews show evidence of therapeutic effectiveness of therapeutic marijuana only for certain symptoms of multiple sclerosis (spasticity, spasms and pain), despite attempts for its widespread use, including refractory childhood epilepsy...
September 2016: Revista Médica del Instituto Mexicano del Seguro Social
Mellar P Davis
Cannabinoids bind not only to classical receptors (CB1 and CB2) but also to certain orphan receptors (GPR55 and GPR119), ion channels (transient receptor potential vanilloid), and peroxisome proliferator-activated receptors. Cannabinoids are known to modulate a multitude of monoamine receptors. Structurally, there are 3 groups of cannabinoids. Multiple studies, most of which are of moderate to low quality, demonstrate that tetrahydrocannabinol (THC) and oromucosal cannabinoid combinations of THC and cannabidiol (CBD) modestly reduce cancer pain...
July 2016: Journal of the National Comprehensive Cancer Network: JNCCN
Leslie Mendoza Temple
No abstract text is available yet for this article.
September 2016: Disease-a-month: DM
Chittaranjan Andrade
Cannabis is popularly believed to be a relatively benign substance. Cannabis is also considered to have potential medical benefits, and medical marijuana has been legislated in many parts of the world. However, a recent meta-analysis found that cannabinoids were associated with only modest benefits for chemotherapy-related nausea and vomiting, small and inconsistent benefits for pain and spasticity, and inconclusive benefits for other indications such as improvement of appetite and weight, reduction in tic severity, and improvement of mood or sleep...
May 2016: Journal of Clinical Psychiatry
Sean Patrick Nordt, Ilene Claudius, Cyrus Rangan, Erick Armijo, Peter Milano, Sheryl Yanger, Christian Tomaszsewski
OBJECTIVES: There is concern of energy drink use by adolescents. The objective of this study was to evaluate the energy drink consumption use, frequency, age of first use, reasons for use, influences of choice of brand, and adverse events recorded in a predominant Latino adolescent population. METHODS: Subjects between the ages of 13 and 19 years utilizing emergency department services for any reason at a large county hospital answered a questionnaire about energy drink usage...
February 10, 2016: Pediatric Emergency Care
Nicole L Cohen, Adrienne J Heinz, Mark Ilgen, Marcel O Bonn-Miller
OBJECTIVE: The purpose of this study was to examine whether individuals who used medical cannabis for chronic pain were at increased risk for cannabis use problems compared with individuals who used medical cannabis for other reasons (e.g., anxiety, insomnia, and muscle spasms). An additional aim was to determine whether individuals who used cannabis for chronic pain, as well as those who reported greater within-group pain levels, demonstrated a species preference (i.e., sativa, indica, hybrids) and the extent to which species preference was associated with cannabis use problems...
May 2016: Journal of Studies on Alcohol and Drugs
Rimplejeet Kaur, Sneha R Ambwani, Surjit Singh
Cannabis sativa is also popularly known as marijuana. It has been cultivated and used by man for recreational and medicinal purposes since many centuries. Study of cannabinoids was at bay for very long time and its therapeutic value could not be adequately harnessed due to its legal status as proscribed drug in most of the countries. The research of drugs acting on endocannabinoid system has seen many ups and downs in the recent past. Presently, it is known that endocannabinoids has role in pathology of many disorders and they also serve "protective role" in many medical conditions...
2016: Current Clinical Pharmacology
Nalini Vadivelu, Leandro Lumermann, Richard Zhu, Gopal Kodumudi, Amir O Elhassan, Alan David Kaye
Drug addiction is present in a significant proportion of the population in the USA and worldwide. Drug addiction can occur with the abuse of many types of substances including cocaine, marijuana, stimulants, alcohol, opioids, and tranquilizers. There is a high likelihood that clinicians will encounter patients with substance abuse disorders on a regular basis with the prevalence of the use of illicit substances and the high rate of abuse of prescription drugs. The use of abuse deterrent formulations of prescription opioid agents, pill counts, and urine drug abuse screenings are all useful strategies...
May 2016: Current Pain and Headache Reports
Mary-Ann Fitzcharles, Elizabeth M Hazel, Gregory Taylor, Lori B Tucker
No abstract text is available yet for this article.
April 2016: Journal of Rheumatology
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