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BMC Womens Health
January 2025
School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK.
Background: Prenatal maternal smoking, lower birthweight, and shorter breastfeeding duration have all been associated with an earlier age at menopause in daughters. We estimated the extent to which birthweight-for-gestational-age z-score and breastfeeding duration mediate the effect of prenatal maternal smoking on time to natural menopause in daughters.
Methods: Using pooled data from two prospective birth cohort studies - the 1970 British Cohort Study (n = 3,878) followed-up to age 46 years and the 1958 National Child Development Study (n = 4,822) followed-up to age 50 years - we perform mediation analysis with inverse odds weighting implemented in Cox proportional-hazards models.
BMC Pregnancy Childbirth
January 2025
Department of Infectious Diseases, Ganzhou Fifth People's Hospital, Ganzhou, China.
Background: Antiretroviral drugs are essential for preventing mother-to-child transmission (MTCT) of HIV in HIV-infected pregnant women. However, ART treatment for HIV-infected pregnant women with multidrug resistance remains a major challenge. Effective and safe ART regimens for preventing MTCT should be tailored to this special population.
View Article and Find Full Text PDFEnviron Res
January 2025
Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University. Zhengzhou, Henan, China. Electronic address:
This study investigates the association between prenatal exposure to dioxin-like polychlorinated biphenyls (DL-PCBs) and glucocorticoid and androgenic hormone levels in cord blood. We analyzed cord blood samples from 500 mother-infant pairs from China (2022-2023), focusing on hormones including cortisol, cortisone, dehydroepiandrosterone (DHEA), and androstenedione. The main analysis revealed significant reductions in cortisol levels with increased exposure to PCB-77 (β = -3.
View Article and Find Full Text PDFReprod Toxicol
January 2025
Biosciences, Faculty of Health and Life Sciences, University of Exeter, Stocker Road, Exeter, Devon, EX4 4QD, UK. Electronic address:
With the US Environment Protection Agency reducing requests for (and funding of) mammalian studies alongside the proposed elimination of requests by 2035, there is an urgent need for fully validated New Approach Methods (NAMs) to fill the resultant gap for safety assessment of agrochemicals. One promising NAM for assessing the potential for human prenatal developmental toxicity potential is the Zebrafish Embryo Developmental Toxicity Assessment, a bioassay that has been used by the pharmaceutical industry for more than a decade in early-stage drug safety assessment. Despite its promise, little data has been generated to assess the validity of ZEDTA for assessing Developmental and Reproductive Toxicity of new agrochemical products.
View Article and Find Full Text PDFGenomics
January 2025
Reproductive Medicine Center, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China; Hubei Clinical Research Center for Prenatal Diagnosis and Birth Health, Wuhan, Hubei 430071, China. Electronic address:
Background: Current endometrial receptivity analysis is invasive, preventing embryo transfer during the biopsy cycle. This study aims to screen serum sncRNAs as non-invasive biomarkers for ERA tests.
Methods: The study included 12 infertile patients undergoing IVF-ET and ERA, whose serum samples were collected for high-energy sequencing technology to detect sncRNA expression profiles.
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