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Visible and invisible cultural patterns influencing women's use of maternal health services among Igala women in Nigeria: a focused ethnographic study.
BMC Public Health
January 2025
College of Nursing, University of Saskatchewan, Health Science Building-1A10, 107 Wiggins Road, Box 6, Saskatoon, SK, Saskatchewan, S7N 5E5, Canada.
Background: Explicit and implicit cultural patterns are critical cultural norms, beliefs, and practices that determine women's health-seeking behaviour. These cultural patterns could limit women's use of maternal health services, resulting in maternal health complications. The study aims to provide an in-depth understanding of explicit and implicit cultural patterns, their meanings and how they influence women's use of maternal health services among Igala women in Nigeria.
View Article and Find Full Text PDFEffect of abnormal placental cord insertion on hemodynamic change of umbilical cord in a tertiary center: a prospective cohort study.
Postgrad Med J
January 2025
Department of Obstetrics and Gynecology, Chung Shan Hospital, No. 11, Ln. 112, Sec. 4, Ren'ai Rd., Da'an Dist., Taipei City 10689, Taiwan.
Background: Our study aims to evaluate the umbilical vein (UV) hemodynamic change in the prenatal cohort of pregnancies diagnosed with abnormal placental cord insertion (aPCI).
Methods: From January 2022 to December 2022, the fetal umbilical cord insertion site was sonographically examined in singleton fetuses, and umbilical cord blood flow was calculated. The umbilical artery and UV Doppler flow indexes were assessed in cases of normal and abnormal cord insertion.
Compromised C3b-VSIG4 axis between decidual NK cells and macrophages contributes to recurrent spontaneous abortion.
J Transl Med
November 2024
Department of Life Sciences and Medicine, University of Science and Technology of China, 443 Huangshan Road, Hefei, 230027, Anhui, China.
NK cells and macrophages constitute the predominant immune cell subsets in the decidua during the first trimester of pregnancy, with macrophages typically adopting an anti-inflammatory phenotype. Conversely, in the third trimester, macrophages undergo a shift towards a pro-inflammatory phenotype concurrent with a reduction in NK cell numbers. The direct regulatory impact of NK cells on macrophage phenotype remains poorly explored.
View Article and Find Full Text PDFReceptor usage of Syncytin-1: ASCT2, but not ASCT1, is a functional receptor and effector of cell fusion in the human placenta.
Proc Natl Acad Sci U S A
October 2024
Laboratory of Viral and Cellular Genetics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 14220, Czech Republic.
Syncytin-1, a human fusogenic protein of retroviral origin, is crucial for placental syncytiotrophoblast formation. To mediate cell-to-cell fusion, Syncytin-1 requires specific interaction with its cognate receptor. Two trimeric transmembrane proteins, Alanine, Serine, Cysteine Transporters 1 and 2 (ASCT1 and ASCT2), were suggested and widely accepted as Syncytin-1 cellular receptors.
View Article and Find Full Text PDFA synthetic review: natural history of amniote reproductive modes in light of comparative evolutionary genomics.
Biol Rev Camb Philos Soc
February 2025
Richard Gilder Graduate School at The American Museum of Natural History, 200 Central Park West, New York, NY, 10024, USA.
Article Synopsis
- The text discusses the debate on whether the ancestral reproductive mode of amniotes (including squamates like snakes and lizards) was oviparity (egg-laying) or viviparity (live-birth), emphasizing the importance of genomic transitions between these modes for understanding amniote evolution.
- It reviews five key biological processes—eggshell formation, embryonic retention, placentation, calcium transport, and maternal-fetal immune dynamics—that may change during these transitions, proposing testable hypotheses about parity mode evolution in these species.
- Additionally, the author introduces the nucleation site hypothesis as a potential early explanation for viviparity in lepidosaurs and offers a unifying framework that contrasts existing models of amni
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