Patients suffering from epilepsy experience better health outcomes—with fewer adverse side effects—when they use plant-based cannabidiol (CBD) extracts compared to “purified” CBD products, according to a new scientific review.
A team of Brazilian researchers conducted a meta-analysis of studies from 2013 to 2017 that have explored the therapeutic benefits of CBD for epilepsy patients. The results were published in the journal Frontiers In Neurology last week.
While the main purpose of the review was to determine the safety and efficacy of CBD for certain forms of epilepsy, the researchers also distinguished between CBD-rich cannabis extracts and purified CBD products, which contain only trace amounts of other cannabinoids, if any.
Consistent with a growing body of scientific research, the study found that CBD treatment reduces the frequency of seizures, even among patients with treatment-resistant forms of epilepsy. About two-thirds of patients included in studies under review had fewer seizures—and six out of 11 those studies “showed over 80 percent of the patients reporting improvement.”
But in the studies where patients received CBD-rich extracts, that improvement was even greater.
Seventy-one percent of patients treated with CBD-rich extracts reported improvements, compared to just 36 percent of patients who received purified CBD products.
The researchers didn’t expand on possible reasons for the difference; however, cannabis experts have long promoted a concept called the “entourage effect,” which refers to the cumulative effect that cannabis is believed to have when its many ingredients work together.
“CBD-rich extracts seem to present a better therapeutic profile than purified CBD, at least in this population of patients with refractory epilepsy,” the researchers wrote. “The roots of this difference is likely due to synergistic effects of CBD with other phytocompounds (aka Entourage effect), but this remains to be confirmed in controlled clinical studies.”
In other words, because purified CBD generally contains little to no other cannabinoids such as THC or cannabinol (CBN), these products hypothetically wouldn’t perform as effectively as plant-based CBD in epilepsy treatment.
This isn’t the first study to suggest that marijuana works better as a treatment option when a diverse range of its ingredients is present. There’s research going back to at least 1981 that seems to reinforce the theory.
The theory became especially of interest to scientists following the publication of a 2011 study in the British Journal of Pharmacology, however. That study looked at terpenes, compounds of cannabis that influence the flavor and smell of marijuana—and possibly, according to its findings, even the effects cannabis has on consumers.
As drug companies like GW Pharmaceuticals continue to advance products based on components of marijuana, the results of this and future studies on the entourage effect may help better inform patients about their options as they seek out cannabis therapies.
Marijuana References In Popular Music Are On the Rise, Study Finds
The number of hit songs that feature lyrics referencing marijuana has increased dramatically over the last 30 years, according to a new study. And researchers believe that growing public acceptance of cannabis is fueling a trend that has resulted in more than three out of four top 40 songs in the U.S. now containing shout-outs to weed.
The study, published last week in the Journal of the American Board of Family Medicine, sought to identify a link between popular music and drug trends in the U.S., with a main focus on opioids. Researchers at the University of Minnesota and Wayne State University examined the lyrics of Billboard’s top 40 songs for each year from 1986 to 2016, filtering for songs that reference marijuana, alcohol, opioids and tobacco.
During the time period under review, references for all categories except tobacco increased.
The first mentions of cannabis appeared in 1989, for example, with fewer than five references in that year’s top 40 chart, as ranked by Billboard. But by 2016, there were more than 30 marijuana references, more than for any other substance tracked in study.
Public acceptance of marijuana use for medical or recreational purposes also grew demonstrably over that time span, which may have “influenced the acceptability of mentioning marijuana in Top 40’s music,” the researchers wrote.
“If this demonstrated ‘acceptability’ trend is mirrored through a similar rise in the mention of opioid narcotics in Top 40’s music, America’s epidemic of overdose fatality may continue to escalate.”
References to opioids, including heroin and prescription painkillers, weren’t featured until the late 1990s, according to the analysis. That same decade marked the beginning of a larger push on the part of pharmaceutical companies to promote opioid-based painkillers.
“Over 50 percent of current Top 40’s hit references discuss narcotic prescription or synthetic medication use, with the most common references including codeine, Percocet, and even remifentanil, among others,” the study found.
Those results should be instructive to public health officials, the researchers argued. Because “if reference to opioid medications continues to become ‘casual or trendy,’ as exemplified in the prose of many popularly aired lyrics, a more targeted public awareness campaign may be warranted to combat this growing national public health concern.”
While a larger share of today’s popular song lyrics contain drug and alcohol references overall, one notable exception is tobacco. As rates of tobacco use and public acceptance of tobacco has fallen, so too has the prevalence of tobacco references in top 40 songs. In fact, there were no references to tobacco in top 40 songs in 2016.
“Although marijuana use has become increasing acceptable among American consumers, tobacco has become increasingly unpopular and stigmatized.”
“Further inquiry may be warranted to evaluate the societal impact and persuasive abilities of popular culture, including Top 40’s music, on American drug and alcohol use,” the researchers concluded.
Photo courtesy of Philip Steffan.
Most Doctors, Nurses And Pharmacists Support Legalizing Marijuana, Poll Finds
A majority of physicians are in favor of legalizing marijuana nationwide, according to a newly published survey, and an even bigger supermajority back allowing medical cannabis.
The results of the poll, which was conducted by Medscape Medical News, also show strong support for marijuana reforms from other medical professionals like nurses, pharmacists and psychologists, as well as those working in health business and administration.
Here’s how the healthcare professionals responded to the question, “Should Recreational Marijuana Be Legalized Nationally?”
Physicians: 53% support
Health Business/Administration: 72% support
Nurses: 57% support
Pharmacists: 54% support
Psychologists: 61% support
And when asked, “Should Medical Marijuana Be Legalized Nationally?” they replied as follows:
Physicians: 67% support
Health Business/Administration: 88% support
Nurses: 82% support
Pharmacists: 71% support
Psychologists: 82% support
In no category did less than a majority of medical professionals support legalizing recreational or medical marijuana.
The survey, which MedScape launched in May and published on Wednesday, also asked respondents in states with legal medical cannabis whether they recommend it to patients.
Fifty-nine percent of physicians said they have recommended medical marijuana, while 59 percent of nurses and 52 percent of pharmacists said the same.
The poll, which included responses from 417 physicians, 1,054 nurses, 171 people in health business or administration, 79 pharmacists and 79 psychologists, found that minorities of each category personally engage in cannabis consumption.
Broader polling in recent years has consistently shown that a growing majority of Americans support legalizing marijuana, and the new MedScape results indicate that medical professionals’ views on cannabis laws do not significantly differ from those of the general population.
Workers In These Industries Are Most Likely To Consume Marijuana
It’s become increasingly clear that there’s no single “type” of marijuana consumer. But research has identified certain cultural trends, including a new study that examines the prevalence of cannabis consumption among workers in different industries.
The study, published this month in the International Review of Psychiatry, demonstrates that cannabis use is represented in a wide range of employment backgrounds—and some of the industries where using cannabis is most common might come as a surprise.
Let’s start with the numbers. Here’s a list of industries where workers use the most and least cannabis, which the researchers compiled based on 2013 and 2014 National Survey on Drug Use and Health data. The survey asks respondents whether they’ve used marijuana at least once in the past year.
|Industry||% marijuana use|
Note: Not all industries are represented in this list, which is limited by the data submitted by NSDUH respondents. Also, the study does distinguish different “job categories,” but not within each specific industry.
The point of the study wasn’t simply to show what kind of workers are using marijuana, but also for what purposes. If a survey respondent reported using cannabis in the past year, their use was then categorized as either medical, recreational or mixed (i.e. some of their cannabis consumption was recommended by a doctor, but not all of it).
You can see that breakdown in the table below, but in general, the study reveals a diversity of use types among different industries. People in construction tend to be mixed-use consumers, for instance, and people in food services tend to skew recreational. It’s difficult to explain these sub-trends without more data, however.
That said, the researchers were especially interested in cannabis use among construction and mining employees.
“One key difference between the user groups is the higher percentage of medical cannabis users in the construction and mining industries,” they wrote. “This is likely due to the higher injury rates in these industries: construction and mining work require physical stamina, often involve irregular schedules, and expose workers to weather, dangerous tools, and equipment.”
The study notes that there’s conflicting research about marijuana use in these industries, with some arguing that frequent use can result in increased workplace injuries and others contending that the therapeutic use of cannabis “addresses pain and other health problems… that often result from work-related injuries.”
That latter point is also consistent with a study released last month showing “evidence that legalizing medical marijuana improved workplace safety.”