09 Apr Medical Marijuana as Therapeutic Option for Intractable Itch
Future randomized controlled studies are needed to determine dosing, efficacy, and safety of medical marijuana for the treatment of various forms of itch....
Future randomized controlled studies are needed to determine dosing, efficacy, and safety of medical marijuana for the treatment of various forms of itch....
Sarah Windle[/caption]
Sarah Windle, MPH
PhD Student in Epidemiology
Department of Epidemiology, Biostatistics, and Occupational Health
McGill University (Montréal, Québec, Canada)
MedicalResearch.com: What is the background for this study?
Response: Concerns have been raised about the potential for increases in impaired driving following the legalization of recreational cannabis use in Canada in October 2018. Data from Statistics Canada suggest that cannabis use in the previous three months increased among adults (15 and older) from 14% before legalization in 2018 to 17% in 2019. Among those users with a driver’s license, 13% reported driving within two hours of cannabis use. While this proportion remained the same before and after legalization, this indicates that the absolute number of individuals who reported driving within two hours of use has increased following legalization (due to an increase in the number of users).
Dr. Wymore[/caption]
Erica M. Wymore, MD MPH
Assistant Professor, Neonatal- Perinatal Medicine
Department of Pediatrics, Section of Neonatology
University of Colorado School of Medicine
Children's Hospital Colorado
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Dr. Bunik[/caption]
Maya Bunik, MD, MPH | Professor, Pediatrics
Medical Director, Child Health Clinic, Primary Care | Breastfeeding Management Clinic
Adult and Child Consortium for Health Outcomes Research and Delivery Science (ACCORDS)
School of Medicine| University of Colorado Anschutz Medical Campus
Children's Hospital Colorado
MedicalResearch.com: What is the background for this study?
Response: Marijuana legalization has been increasing in the United States, with increasing consumption of marijuana products. Currently, the American Academy of Pediatrics (AAP), American College of Obstetricians and Gynecologists (ACOG) and Academy of Breastfeeding Medicine (ABM) do not recommend marijuana use during pregnancy or lactation due to concerning though limited data on the effects of perinatal marijuana exposure.
As there has been increasing prevalence of women using marijuana during pregnancy due to legalization and perceptions of safety, we sought to determine the duration of THC excretion in breast milk among women who had evidence of marijuana use at delivery and abstained post-partum.
Response: The background for the study is the steady rise of cannabis use as a therapeutic in Israel and in many countries around the world. This largest increasing population of patients treated with medical cannabis is the older adults. However, very little data was published about cannabis treatment in older adults, and specifically about the cardiovascular and metabolic implications. T
he main finding of the study is that cannabis treatment for 3 months was associated with a reduction in both systolic and diastolic blood pressure values, as measured by consequent 24-hours ABPM tests. In addition, no significant changes were found in blood lipids profile, hemoglobin A1C, fasting insulin, C-reactive protein, kidney function tests, electrolytes, anthropometric measurements, and ECG parameters.
Elodie Warren[/caption]
Elodie C. Warren, MPH
Columbia University Mailman School of Public Health Graduate
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: We know that the US has been experiencing an opioid crisis for the past two decades. And we know that among communities of color, rates of overdose deaths are continuing to increase, even though overall national rates decreased between 2017 and 2018.
To better understand how the opioid crisis has differently affected racial/ethnic groups, we looked at how heroin treatment admissions changed over time by race/ethnicity, age, and sex. We found that there were stark differences when comparing non-Hispanic Black men and women to non-Hispanic White men and women.
Importantly, our study suggests the existence of an aging cohort of Black men and women (likely including survivors of a heroin epidemic that hit urban areas more than 40 years ago) that continues to struggle with heroin addiction. This points to the need for targeted interventions in chronically underserved communities.
Dr. Warnick[/caption]
Benjamin J. Warnick, PhD
Assistant Professor of Entrepreneurship
Carson College of Business
Washington State University Vancouver
MedicalResearch.com: What is the background for this study?
Response: Popular culture has perpetuated a notion that cannabis users are more creative. Along these lines, some successful CEOs and entrepreneurs—like Steve Jobs, for example—have claimed that cannabis use has benefitted their creativity at work.
Despite such claims and increased legalization and use of cannabis, the implications of cannabis use for entrepreneurs’ creativity has yet to be rigorously tested. My coauthors and I were very intrigued to dive into the implications of cannabis use for entrepreneurs, whether good or bad. This seemed all the more relevant given the increasing legalization, destigmatization, and use of cannabis.
Dr. Kovács[/caption]
Balázs Kovács PhD
Associate Professor of Organizational Behavior
Yale School of Management
MedicalResearch.com: What is the background for this study?
Response: Our study looks at the association between the prevalence of legal cannabis stores, called “dispensaries”, and opioid-related mortality rates in the U.S. We find that higher cannabis dispensary counts are associated with reduced opioid-related mortality rates. We find this relationship holds for both medical dispensaries, which only serve patients who have a state-approved medical card or doctor’s recommendation, as well as for recreational dispensaries, which sell to adults 21 years and older. The statistical associations we find appears most pronounced with the class of opioids that includes fentanyl and its analogs.
Dr. Pedersen[/caption]
Eric R. Pedersen, Ph.D.
Adjunct Behavioral Scientist, RAND
Associate Professor of Psychiatry and Behavioral Sciences
Keck School of Medicine
University of Southern California
MedicalResearch.com: What is the background for this study?
Response: In November of 2016, CA voted to legalize cannabis for sale and possession to adults 21 and older for recreational use. It wasn’t until January of 2018 that stores in most parts of LA County (we call these “outlets”) were legally able to begin selling recreational cannabis. We were collecting data from about 2,500 young adults in LA County as part of a longitudinal study (Principal Investigator Elizabeth D’Amico at RAND) and were able to look at cannabis use and intentions assessed at a period prior to the opening of the recreational cannabis outlets (pre-January 2018) to a period when those outlets were open (after January 2018). It has been suggested that once cannabis was more available for recreational purchase (and not just for medical purposes among those enrolled in CA’s medical marijuana program), use of cannabis among young adults would increase.
Dr. Bishehsari[/caption]
Faraz Bishehsari, MD, PhD
Associate Professor of Medicine and Graduate College
Director of the Translational Gastroenterology Unit
Division of Digestive Diseases
Rush University Medical Center
MedicalResearch.com: What is the background for this study?
Response: This study builds on recent population based studies where opium use was found to be possible risk factor for pancreatic cancer. Although opium use is not a common recreational habit in the United States, opioid use has been rising remarkably over the past decade. In fact, opioid misuse and overdose have evolved into a public health crisis here with increasing opioid prescription use and abuse over the past decade.
Dr. Li[/caption]
Li Li, MS, PhD Candidate
Division of Epidemiology, College of Public Health, Ohio State University
Graduate Research Associate, Center for Injury Research and Policy
The Abigail Wexner Research Institute at Nationwide Children’s Hospital
MedicalResearch.com: What is the background for this study?
Response: Marijuana use impairs cognitive abilities necessary for safe driving, including reaction time, road lane-tracking ability, and attention maintenance. Given increasing legalization of marijuana use in the US, our study aimed to estimate marijuana-impaired driving among teens at a national level and help to identify the current prevalence to guide future intervention programs.
Dr. Piper[/caption]
Brian J. Piper, PhD, MS
Department of Medical Education
Geisinger Commonwealth School of Medicine
Scranton, PA 18510
MedicalResearch.com: What is the background for this study?
Response: The US continues to be adversely impacted by an iatrogenic opioid epidemic. There have been increasing reports of “vet shopping” or diverting opioids from pets to their owners [2]. In humans, methadone is the number one prescription opioid when expressed in terms of morphine mg equivalents (MME) [3]. The goal of this study was to examine the changing pattern of opioid and other controlled substance use by veterinary teaching institutions.
Sitara Weerakoon[/caption]
Sitara Weerakoon, MPH (she/her)
PhD Candidate | Epidemiology & Biostatistics
Graduate Research Assistant
Center for Pediatric Population Health
UTHealth
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Measures to control the spread of COVID-19 included stay-at-home mandates and business lockdown policies which resulted in many facing a loss of income or employment and more time spent isolated at home. Life stressors (like job loss and social isolation) have been shown to be associated with increased drinking at unhealthy levels. Those with a history of mental health problems may be even more at risk.
We aimed to see if binge drinking (5 or more drinks [male] or 4 or more drinks [female] in one session) and levels of alcohol consumption among binge drinkers were impacted by these pandemic-related factors. We found that increased time spent at home (in weeks) was associated with a 19% increase in the odds of binge drinking and binge drinkers with a previous diagnosis of depression and current depression symptoms (during the early months of the pandemic) had a 237% greater odds of drinking more alcohol (vs drinking the same amount) compared to those with no history and current symptoms of depression.
Dr. Uhr[/caption]
Joshua Uhr MD
Ophthalmologist
Philadelphia, PA
MedicalResearch.com: What is the background for this study?
Response: Disparities in American society have been at the forefront of the public consciousness in recent months. As part of the larger discussion about inequality, disparities in health outcomes have received much attention. In light of the renewed recognition that these disparities are stark and widespread, we felt it important to evaluate disparities in our own field, ophthalmology.
Previous studies have shown disparate outcomes for individual eye conditions, such as glaucoma, cataract, and retinal detachment. Although the common and relevant endpoint of these is visual impairment, few prior studies have examined disparities in visual impairment more broadly. Our aim was to provide an updated analysis of disparity in visual impairment among adults in the United States based on race and socioeconomic status.
While CBD has a powerful effect on seizures, neuropathy, and even behavioral disorders, it is not a cure-all as some manufacturers may claim....
While CBD and CBG are both cannabinoids by nature, they do come from different parts of the cannabis plant, which means they serve different purposes and have different properties....
Dr. Cuttler[/caption]
Carrie Cuttler, Ph.D.
Assistant Professor
Washington State University
Department of Psychology
Pullman, WA, 99164-4820
MedicalResearch.com: What is the background for this study?
Response: While many studies have examined the acute effects of cannabis on other mental health symptoms such as anxiety, depression, post-traumatic stress disorder (PTSD), and psychosis there is almost no research on acute effects of cannabis on symptoms of obsessive-compulsive disorder (OCD) in humans. Nevertheless, we have previously found that acute cannabis intoxication is associated with reductions in anxiety as well as with reductions in the intrusive thoughts characteristic of PTSD. Further previous research using a rodent model of compulsive behavior has provided pre-clinical evidence that cannabidiol (CBD) - which is the second most common constituent in the cannabis plant - reduces compulsive behavior.
Dr. Kaufmann[/caption]
Christopher Kaufmann, PhD
Co-first author of the study and assistant professor
Division of Geriatrics and Gerontology in the Department of Medicine
UC San Diego
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: We examined cannabis use by older patients seen in our geriatrics clinic at the University of California San Diego. We surveyed patients who came to our clinic for routine care, and found that 15% of those surveyed had used cannabis within the past 3 years. Half of users reported using cannabis regularly and most used for medical purposes. The most common targeted conditions were pain, problems sleeping, and anxiety, and patients found cannabis to be helpful in treating these conditions. We also found that 61% had initiated cannabis use after age 60, and these new users engaged in less risky consumption practices than current users who also used earlier in life.
Dr. Lanza[/caption]
Isabella Lanza, PhD
Associate Professor of Human Development
California State University, Long Beach
MedicalResearch.com: What is the background for this study? What are the main findings? Response: This is the first study to examine both nicotine vaping and cannabis vaping trajectories across adolescence and young adulthood, which allowed us to assess whether poly-substance vaping is common among adolescents and young adults. Poly-substance vaping (nicotine and cannabis vaping) was reported among a significant proportion of participants in the study (25% were identified as poly-substance vapers). For those that either escalated to frequent nicotine vaping use in adolescence or initiated frequent nicotine vaping use in young adulthood, the probability of engaging in cannabis vaping was very high (85%+).
Dr. Pollard[/caption]
Michael S. Pollard, Ph.D.
Professor, Pardee RAND Graduate School
Senior Sociologist
RAND Corporation
Santa Monica, CA 90407-2138
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: There are ample anecdotal jokes and stories about increased alcohol use during COVID-19 and stay-at-home orders. Our study provides robust longitudinal evidence that people drank more frequently, and for women in particular, more heavily, and with more negative consequences, during the initial stages of COVID-19 compared to their own behaviors from a year earlier (May/June 2020 compared to May/June 2019). Women’s alcohol consumption was most significantly changed, with a 17% increase in number of days drinking, and a 41% increase in days of binge drinking (when they had four or more drinks in a couple of hours). This means that, nationally, one in five women drank heavily one more day a month than the same time in 2019, on average. Women also reported a 39% increase in alcohol-related problems, such as “I took foolish risks” or “I failed to do what was expected of me” because of drinking alcohol.
Dr. Rong Xu[/caption]
Rong Xu PhD
Center for Artificial Intelligence in Drug Discovery, School of Medicine
Case Western Reserve University
Cleveland, OH
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Chronic use of tobacco, alcohol and other drugs is associated with cardiovascular, pulmonary, and metabolic diseases, all of which are also risk factors for COVID-19 infection and for worse outcomes. Additionally, individuals with substance use disorders are more likely to experience social adversity such as homelessness, decreased access to health care, housing insecurity among others. Based on these, we hypothesis or predict that individuals with SUD are especially vulnerable for COVID-19 infection and adverse outcomes.
In our study, we found that individuals with substance use disorders, especially individuals with OUD and African Americans with SUD, as having increased risk for COVID-19 and its adverse outcomes
Dr. Ellingson[/caption]
Jarrod Ellingson PhD
Assistant Professor
Department of Psychiatry
Anschutz Medical Campus
University of Colorado Denver
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: We know that cannabis use is associated with many negative outcomes, but there could be many of reasons for that. For example, socioeconomic factors and peer influences both affect adolescent cannabis use and poorer cognitive functioning. To account for some of those risk factors, we studied nearly 600 sibling pairs with moderate to heavy cannabis use. We found that, as a person uses more cannabis than their sibling, they tend to have worse memory recall than their sibling.
Response: This study found that recreational cannabis laws were associated with increases in traffic fatalities in Colorado (mean of 75 excess fatalities per year) but not in Washington State. These findings suggest that unintended effects of recreational cannabis laws can be heterogeneous and may be specific to variations in how these laws are implemented
(eg, density of recreational cannabis stores).
Amalie K. Kropp Lopez[/caption]
Amalie K. Kropp Lopez, MS
MD Candidate
Geisinger Commonwealth School of Medicine Class of 2023
Scranton, Pennsylvania
MedicalResearch.com: What is the background for this study?
Response: The opioid crisis is still affecting America, effecting millions of people from all walks of life. With the high risks of abuse and overtreatment with opioids, marijuana has been a newly reconsidered alterative for pain treatment. This study sought to quantify the changes in prescription opioid distribution using data reported by the Drug Enforcement Administration in Colorado after the legalization of recreational marijuana which gave the public increased access to its pain-relieving effects.
Response: It is well known that marijuana usage impairs driving ability, yet the early studies of the effects of recreational marijuana legalization on traffic fatalities were inconclusive.
MedicalResearch.com: What are the main findings?
Response: By analyzing data over a longer time period, we found that the legalization of recreational marijuana increased traffic deaths in the first four states to legalize. Traffic fatalities increased about 20% in those states. If we apply these numbers to the nation as a whole, nationwide legalization would be associated with about 7,000 excess traffic fatalities each year.
Dr. Brown[/caption]
Chase Brown, MD
Associate Fellow, Leonard Davis Institute of Health Economics
Integrated Cardiac Surgery Resident
Hospital of the University of Pennsylvania
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Dr. Desai[/caption]
Nimesh D. Desai, MD, PhD
Director, Thoracic Aortic Surgery Research Program
Associate Professor of Surgery
Hospital of the University of Pennsylvania
MedicalResearch.com: What is the background for this study?
Dr. Chase Brown: Opioid use in the United States is a public health emergency. We know that opioids prescribed after general surgery operations to patients who never received them within the year prior to their surgery are at increased risk for continuing to take opioids months later. However, this has not been studied in patients undergoing cardiac surgery, who often times have more severe post-operative pain.
Our goal in this study was to determine how many patients after cardiac surgery and are opioid naive are continuing to take opioids within 90-180 days after their surgery.
Dr. Vandrey[/caption]
Ryan Vandrey, Ph.D.
Associate Professor
Behavioral Pharmacology Research Unit
Johns Hopkins University School of Medicine
Baltimore, MD 21224
MedicalResearch.com: What is the background for this study?
Response: The background for this study is that 33 states in the U.S. have legalized medicinal cannabis use and millions of people are using cannabis for therapeutic purposes, but we have very little data on the broad health impacts of medicinal cannabis use.
We surveyed medicinal cannabis users and non-using controls who had a variety of health problems and found that the cannabis users reported better health, quality of life, and less healthcare utilization compared with controls. Because we worried about group characteristics accounting for the differences observed, we then did an analysis of people who switched groups over time (e.g. non-users who later initiated cannabis use or cannabis users who later quit) and found the same differences emerged in the same individuals over time. Important to note here is that not all individuals who used cannabis benefited from it and that most participants were using high CBD varieties of cannabis in conjunction with more traditional treatments.
Dr. Davidson[/caption]
Dr. Karina Davidson, PhD
Senior Vice President of Research
Dean of Academic Affairs
Professor of Behavioral Medicine
Zucker School of Medicine
Hofstra University/Northwell Health
Vice Chairmam
US Preventive Services Task Force
MedicalResearch.com: What is the background for this study?
Response: Drug use is among the most common causes of preventable death, injury, and disability in the United States, with nearly 10 percent of adults reporting unhealthy drug use. This includes the use of illegal drugs, as well as using prescription drugs in ways that are not recommended by a doctor.