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Home»Health»Marijuana use linked to epigenetic changes
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Marijuana use linked to epigenetic changes

July 22, 2023No Comments4 Mins Read
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Marijuana use linked to epigenetic changes
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Latest and long-term marijuana use is linked to modifications within the human epigenome, a brand new Northwestern Drugs examine printed in Molecular Psychiatry has discovered.

Marijuana is essentially the most used drug in america, based on the Facilities for Illness Management and Prevention, with roughly 48.2 million individuals (about 18% of all Individuals) having used it not less than as soon as in 2019, the newest 12 months for which information is offered.

Though a number of states have legalized marijuana, the well being penalties of marijuana use should not effectively understood, mentioned Lifang Hou, MD, Ph.D., chief of Most cancers Epidemiology and Prevention within the Division of Preventive Drugs and senior creator of the examine.

“Regardless of its rising recognition, in addition to current legalization by a number of states, the impact of marijuana on epigenetic components has not been effectively studied,” mentioned Hou, who can also be Director of the Middle for International Oncology within the Robert J. Havey, MD, Institute for International Well being. “We beforehand recognized associations between marijuana use and the growing old course of as captured by way of DNA methylation. We needed to additional discover whether or not particular epigenetic components had been related to marijuana and whether or not these components are associated to well being outcomes.”

Within the examine, investigators analyzed entire blood samples taken 5 years aside from individuals who beforehand participated within the Coronary Artery Danger Improvement in Younger Adults (CARDIA) examine. The present examine included information from greater than 900 adults.

The scientists surveyed every participant for current marijuana use and estimated cumulative use after which carried out DNA methylation profiling on their blood samples to disclose epigenetic modifications related to marijuana use.

By finding out modifications in DNA methylation, the organic course of by which methyl teams are added to DNA molecules, thereby altering gene expression, scientists had been capable of hyperlink marijuana use to modifications within the human epigenome.

Total, investigators noticed 22 and 31 DNA methylation markers related to current and cumulative marijuana use, respectively, from the primary samples and 132 and 16 methylation markers within the second batch of samples, based on the examine.

Lots of the epigenetic modifications had been present in pathways beforehand linked to mobile proliferation, hormone signaling, infections and psychological well being issues similar to schizophrenia, bipolar dysfunction and substance use issues, Hou mentioned.

“In our examine, we noticed associations between cumulative marijuana use and a number of epigenetic markers throughout time,” Hou mentioned. “Apparently, we constantly recognized one marker that has beforehand been related to tobacco use, suggesting a possible shared epigenetic regulation between tobacco and marijuana use. The noticed marijuana markers had been additionally related to cell proliferation, an infection and psychiatric issues, nevertheless, extra research are wanted to copy and confirm these findings.”

Whereas the examine doesn’t set up a causal relationship between marijuana use and epigenetic modifications, nor between these epigenetic modifications and noticed well being outcomes, the findings could also be helpful in future analysis into the epigenetic results of marijuana use, mentioned Drew Nannini, DO, Ph.D., a postdoctoral fellow within the Hou lab and first creator of the examine.

“This analysis has supplied novel insights into the affiliation between marijuana use and epigenetic components,” Nannini mentioned. “Extra research are wanted to find out whether or not these associations are constantly noticed in numerous populations. Furthermore, research analyzing the impact of marijuana on age-related well being outcomes could present additional perception into the long-term impact of marijuana on well being.”

Extra data:
Drew R. Nannini et al, Genome-wide DNA methylation affiliation examine of current and cumulative marijuana use in center aged adults, Molecular Psychiatry (2023). DOI: 10.1038/s41380-023-02106-y

Offered by
Northwestern College

Quotation:
Marijuana use linked to epigenetic modifications (2023, July 20)
retrieved 21 July 2023
from https://medicalxpress.com/information/2023-07-marijuana-linked-epigenetic.html

This doc is topic to copyright. Other than any honest dealing for the aim of personal examine or analysis, no
half could also be reproduced with out the written permission. The content material is supplied for data functions solely.



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