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  • Cannabis use linked to...

Cannabis use linked to reduced female fertility in new study

Written By : Dr. Kamal Kant Kohli Published On 2020-04-02T22:39:36+05:30  |  Updated On 2 April 2020 10:39 PM IST
Cannabis use linked to reduced female fertility in new study
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WASHINGTON-- Marijuana, or cannabis use is legalized in more and more places leading to increased use especially among people of reproductive age. age.

Researchers have found that Cannabis use can adversely affect fertility of females. The study finds that female eggs exposed to THC, the psychoactive ingredient in marijuana, have an impaired ability to produce viable embryos, and are significantly less likely to result in a viable pregnancy

The animal study has been accepted for presentation at ENDO 2020, the Endocrine Society's annual meeting.

The abstract will be published in the Journal of the Endocrine Society.

Marijuana, or cannabis, is the most commonly used recreational drug by people of reproductive age. The rise in marijuana use has occurred at the same time that THC percentages in the drug have increased. "Currently, patients seeking infertility treatments are advised against cannabis use, but the scientific evidence backing this statement is weak," said Master student Megan Misner, part of the research laboratory led by Laura Favetta, Ph.D., in the Department of Biomedical Sciences at the University of Guelph in Canada. "This makes it difficult for physicians to properly advise patients undergoing in vitro fertilization."

In the new study, researchers treated cow oocytes, or female eggs, with concentrations of THC equivalent to therapeutic and recreational doses. The oocytes were collected and matured into five groups: untreated, control, low THC, mid THC and high THC.

The eggs' developmental rates and gene expression were measured. The researchers evaluated the ability of embryos to reach critical stages of development at specific time points. With higher concentrations of THC, they found a significant decrease and delay in the ability of the treated oocytes to reach these checkpoints. "This is a key indicator in determining the quality and developmental potential of the egg," Misner said.

THC exposure led to a significant decrease in the expression of genes called connexins, which are present at increased levels in higher quality oocytes. Poorer quality oocytes, with lower connexin expression levels, have been shown to lead to a poorer embryo development. "This embryo would be less likely to proceed past the first week of development, and thus lead to infertility," Misner said.

Preliminary data also showed THC affected the activity of a total of 62 genes in the treatment groups compared with the non-treated groups. "This implies lower quality and lower fertilization capability, therefore lower fertility in the end," she said.

The Endocrine Society canceled its annual meeting, ENDO 2020, amid concerns about COVID-19. Visit our online newsroom for more information on accepted abstracts, which will be published in a special supplemental section of the Journal of the Endocrine Society.

Marijuanacannabiscannabinoidfertility
Source : ENDO 2020
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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