Abstract Cannabis use during pregnancy is becoming increasingly common despite a lack of knowledge regarding its long-term effects on developing offspring. Determining effects of prenatal cannabis exposure on cannabis use later in life has been especially difficult given the problems inherent to traditional models of cannabinoid self-administration. Thus, we adopted a model of response-contingent cannabis vapor delivery in pregnant rat dams to investigate impacts of maternal cannabis use on reinforcing properties of ∆9-tetrahydrocannabinol (THC)-rich cannabis vapor in offspring. Rat dams were trained to self-administer a vaporized cannabis extract or vehicle vapor in 1-hr sessions twice daily until 24-48 hr prior to parturition, while a third group...

Please use this link to access this publication: https://journals.lww.com/obgynsurvey/abstract/2023/07000/cannabis_and_pregnancy__a_review.18.aspx Abstract Importance  Prenatal cannabis use is rising and is a major public health issue. Cannabis use in pregnancy and during lactation has been associated with increased maternal and offspring morbidity and mortality. Objective  This review aims to summarize the existing literature and current recommendations for cannabis use during pregnancy or lactation. Evidence Acquisition  A PubMed, Cochrane Library, and Google Scholar literature search using the following terms was performed to gather relevant data: “cannabis,” “cannabinoid,” “delta-9-tetrahydrocannabinol,” “THC,” “cannabidiol,” “fetal outcomes,” “perinatal outcomes,” “pregnancy,” and “lactation.” Results  Available studies on cannabis use in pregnancy and during lactation were...

Please use this link to access this publication: https://journals.lww.com/journaladdictionmedicine/abstract/2023/05000/impact_of_prenatal_cannabis_use_disorder_on.20.aspx Abstract Objectives  With legislative changes to cannabis legalization and increasing prevalence of use, cannabis is the most commonly used federally illicit drug in pregnancy. Our study aims to assess the perinatal outcomes associated with prenatal cannabis use disorder. Methods  We conducted a retrospective cohort study using California linked hospital discharge-vital statistics data and included singleton, nonanomalous births occurring between 23 and 42 weeks of gestational age. χ2 Test and multivariable logistic regression were used for statistical analyses. Results  A total of 2,380,446 patients were included, and 9144 (0.38%) were identified as using cannabis during pregnancy. There was...

Abstract   Background and Aims: Cannabis use is increasingly common among pregnant individuals and might be a risk factor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We aimed to test whether prenatal cannabis use is associated with increased risk of SARS-CoV-2 infection during pregnancy. Design: This is a retrospective cohort study.   Setting: The study was conducted in California, USA. Participants: A total of 58 114 pregnancies (with outcomes from 5 March 2020 to 30 September 2021) among 57 287 unique pregnant women aged 14–54 years who were screened for prenatal substance use, enrolled in Kaiser Permanente Northern California (KPNC) (a health-care...

OBJECTIVE: To evaluate the transfer of delta-9- tetrahydrocannabinol and its metabolites into human breast milk after maternal inhalation of 0.1 g cannabis containing 23.18% delta-9-tetrahydrocannabinol. METHODS: In this pilot pharmacokinetic study, breast milk samples were collected from mothers who regularly consumed cannabis, were 2–5 months postpartum, and exclusively breastfeeding their infants. Women were anonymously recruited for the study. After discontinuing cannabis for at least 24 hours, they were directed to obtain a baseline breast milk sample, then smoke a preweighed, analyzed, standardized strain of cannabis from one preselected dispensary, and collect breast milk samples at specific time points: 20 minutes and 1, 2, and...

Abstract Cannabinoids are the most commonly abused illicit drugs worldwide. While cannabis can be beneficial for certain heath conditions, abuse of potent synthetic cannabinoids has been on the rise. Exposure to cannabinoids is also prevalent in women of child-bearing age and pregnant women. These compounds can cross the placental barrier and directly affect the fetus. They mediate their effects primarily through G-protein coupled cannabinoid receptors, CB1 and CB2. In addition to significant neurological effects, cannabinoids can trigger robust immunomodulation by altering cytokine levels, causing apoptosis of lymphoid cells and inducing suppressor cells of the immune system. Profound effects of cannabinoids on the immune system...

INTRODUCTION: This study aimed to examine the association between cannabis use before and during pregnancy and birth outcomes. RESULTS: Overall, 26.3% of women reported previous use of cannabis and 2.6% reported current use. Multivariate analysis, controlling for potential confounders, including tobacco smoking, alcohol consumption, and use of other illicit drugs, showed that cannabis use in pregnancy was associated with low birth weight (odds ratio (OR) = 1.7; 95% confidence interval (CI): 1.3–2.2), preterm labor (OR = 1.5; 95% CI: 1.1–1.9), small for gestational age (OR = 2.2; 95% CI: 1.8–2.7), and admission to the neonatal intensive care unit (OR = 2.0; 95% CI: 1.7–2.4)....

Abstract Background: Hyperemesis Gravidarum (HG) responds only partially to standard antiemetic medications. Cannabis has been known to possess antiemetic effects and there are several medicinal cannabinoids used as anti -emetics for cancer chemotherapy. Its favorable use for HG has been described in social media, but not in the medical literature. Methods: We evaluated 4 women with HG counseled by the Motherisk Program, before and following the use of cannabis. Using the validated Pregnancy Unique Quantification of Emesis (PUQE) scoring system and employing the Student’s paired t test, we compared changes in symptoms following initiation of cannabis. Results: There was a highly significant improvement in...

Abstract Recreational use of marijuana is relatively common in the United States, and medicinal use is gaining popular and legal support. Marijuana has been proposed as a potential treatment for hyperemesis gravidarum. Research into this topic is complicated by associations between marijuana use and poor birth outcomes. Cannabinoid hyperemesis syndrome, which can cause severe nausea and vomiting in marijuana users, is another complicating factor. Hawai‘i Pregnancy Risk Assessment Monitoring System data from 4,735 respondents were used to estimate prevalence of self-reported marijuana use during and in the month before pregnancy, as well as severe nausea during pregnancy. Data were weighted to be representative of...

Abstract The endocannabinoid system (eCS), is a complex system, comprising the main endogenous ligands anandamide and 2-arachidonoyl glycerol, the cannabinoid receptors CB1 and CB2 and the biosynthetic and degrading enzymes. Cumulative evidence shows that the eCS plays an important role in reproduction, from egg fertilization to parturition. Therefore, alterations in this system, either by recreation/therapeutic use of cannabis or deregulation of the endogenous cannabinoids, might lead to adverse pregnancy outcomes, including retardation in embryo development, poor blastocyst implantation, inhibition of decidualization, miscarriage and compromised placentation. Nevertheless, the molecular mechanisms by which the eCS participates in different stages of pregnancy remain poorly understood. In this...