Nav: Home

Long-term marijuana use associated with periodontal disease

June 01, 2016

While using marijuana for as long as 20 years was associated with periodontal disease, it was not associated with some other physical health problems in early midlife at age 38, according to an article published online by JAMA Psychiatry.

Policymakers, health care professionals and the public want to know whether recreational cannabis use is associated with physical health problems later in life after major policy changes in the U.S.

Madeline H. Meier, Ph.D., of Arizona State University, Tempe, and coauthors used data from 1,037 individuals who were born in New Zealand in 1972 and 1973 and were followed to age 38. The authors looked at whether cannabis use from age 18 to 38 was associated with physical health problems at age 38.

Self-reported and laboratory measures of physical health were obtained for periodontal health, lung function, systemic inflammation and metabolic health.

Just more than half of the 1,037 participants were male; 484 had ever used tobacco daily and 675 had ever used cannabis.

Cannabis was associated with poorer periodontal health at age 38 but was not associated with the other physical health problems, according to the results. Other analyses suggest cannabis users brushed and flossed less than others and were more likely to be dependent on alcohol.

Study limitations include self-reported cannabis use. The study also was limited to a specific set of health problems assessed in early midlife.

"This study has a number of implications. First, cannabis use for up to 20 years is not associated with a specific set of physical health problems in early midlife. The sole exception is that cannabis use is associated with periodontal disease. Second, cannabis use for up to 20 years is not associated with net metabolic benefits (i.e., lower rates of metabolic syndrome). Third, our results should be interpreted in the context of prior research showing that cannabis use is associated with accidents and injuries, bronchitis, acute cardiovascular events, and, possibly, infectious diseases and cancer, as well as poor psychosocial and mental health outcomes," the study concludes.
-end-
(JAMA Psychiatry. Published online June 1, 2016. doi:10.1001/jamapsychiatry.2016.0637. Available pre-embargo to the media at http://media.jamanetwork.com.)

Editor's Note: The article contains funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.

Media Advisory: To contact study corresponding author Madeline H. Meier, Ph.D., call Skip Derra at 480-965-4823 or email Skip.Derra@asu.edu.

The JAMA Network Journals

Related Cannabis Articles:

Secrets of the molecular makeup of cannabis
High levels of cannabidiol (CBD) in cannabis can offset the neuropsychiatric effects of delta-9-tetrahydrocannabinol (THC) by preventing activation of an emotional processing pathway, according to research recently published in JNeurosci.
Chocolate muddles cannabis potency testing
Since the first states legalized recreational marijuana in 2012, several others have joined them, and cannabis-infused edibles, including gummy bears, cookies and chocolates, have flooded the market.
Study examines cannabis' effects on brain neurochemistry
A new Addiction Biology study provides the first evidence of a blunted response to stress-induced dopamine signaling in the brain's prefrontal cortex in individuals at high risk for psychosis who regularly used cannabis.
Cannabis treatment counters addiction: First study of its kind
An Australian study has demonstrated that cannabis-based medication helps tackle dependency on cannabis, one of the most widely used drugs globally.
Researchers link gene to cannabis abuse
New research from the national psychiatric project, iPSYCH, shows that a specific gene is associated with an increased risk of cannabis abuse.
Formation of habitual use drives cannabis addiction
A shift from brain systems controlling reward-driven use to habit-driven use differentiates heavy cannabis users who are addicted to the drug from users who aren't, according to a study in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, published by Elsevier.
The origins of cannabis smoking: Marijuana use in the first millennium BC
A chemical residue study of incense burners from ancient burials at high elevations in the Pamir Mountains of western China has revealed psychoactive cannabinoids.
The origins of cannabis smoking: marijuana use in the first millennium BC
Cannabis has been cultivated as an oil-seed and fiber crop for millennia in East Asia.
Cannabis use among older adults rising rapidly
Cannabis use among older adults is growing faster than any other age group but many report barriers to getting medical marijuana, a lack of communication with their doctors and a lingering stigma attached to the drug, according to researchers.
Genetic analysis of cannabis is here
Research from Washington State University could provide government regulators with powerful new tools for addressing a bevy of commercial claims and other concerns as non-medical marijuana, hemp and CBD products become more commonplace.
More Cannabis News and Cannabis Current Events

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Rethinking Anger
Anger is universal and complex: it can be quiet, festering, justified, vengeful, and destructive. This hour, TED speakers explore the many sides of anger, why we need it, and who's allowed to feel it. Guests include psychologists Ryan Martin and Russell Kolts, writer Soraya Chemaly, former talk radio host Lisa Fritsch, and business professor Dan Moshavi.
Now Playing: Science for the People

#538 Nobels and Astrophysics
This week we start with this year's physics Nobel Prize awarded to Jim Peebles, Michel Mayor, and Didier Queloz and finish with a discussion of the Nobel Prizes as a way to award and highlight important science. Are they still relevant? When science breakthroughs are built on the backs of hundreds -- and sometimes thousands -- of people's hard work, how do you pick just three to highlight? Join host Rachelle Saunders and astrophysicist, author, and science communicator Ethan Siegel for their chat about astrophysics and Nobel Prizes.