Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ijms22179528
Keywords
Delta 9-tetrahydrocannabinol; cannabidiol; intrauterine growth restriction; placental insufficiency; liver; heart; pancreas; glucose intolerance; dyslipidemia
Funding
- Canadian Institutes of Health Research Catalyst Grant [CRU1126]
- Canadian Heart and Stroke Foundation [G-19-0026343]
- Ontario Graduate Scholarship
- Children's Health Research Institute Trainee Studentship
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Consumption of cannabis during pregnancy by 18-24-year-old pregnant women can lead to fetal growth restriction and increased risk of obesity, type II diabetes, and cardiovascular disease in the offspring. The doubling concentration of Δ9-THC in cannabis over the past decade can readily cross the placenta and negatively impact fetal development via the eCB system.
Up to 20% of pregnant women ages 18-24 consume cannabis during pregnancy. Moreover, clinical studies indicate that cannabis consumption during pregnancy leads to fetal growth restriction (FGR), which is associated with an increased risk of obesity, type II diabetes (T2D), and cardiovascular disease in the offspring. This is of great concern considering that the concentration of Delta(9)- tetrahydrocannabinol (Delta 9-THC), a major psychoactive component of cannabis, has doubled over the last decade and can readily cross the placenta and enter fetal circulation, with the potential to negatively impact fetal development via the endocannabinoid (eCB) system. Cannabis exposure in utero could also lead to FGR via placental insufficiency. In this review, we aim to examine current pre-clinical and clinical findings on the direct effects of exposure to cannabis and its constituents on fetal development as well as indirect effects, namely placental insufficiency, on postnatal metabolic diseases.
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