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Umbilical Cord Maternal Microchimerism in Normal and Preeclampsia Pregnancies.
Shree, Raj; McCartney, Stephen; Cousin, Emma; Chae, Angel; Gammill, Hilary S; Nelson, J L; Kanaan, Sami B.
Afiliación
  • Shree R; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Washington, 1959 NE Pacific Street, Box 356460, Seattle, WA, 98195, USA. shreer23@uw.edu.
  • McCartney S; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Washington, 1959 NE Pacific Street, Box 356460, Seattle, WA, 98195, USA.
  • Cousin E; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Washington, 1959 NE Pacific Street, Box 356460, Seattle, WA, 98195, USA.
  • Chae A; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Washington, 1959 NE Pacific Street, Box 356460, Seattle, WA, 98195, USA.
  • Gammill HS; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, University of Washington, 1959 NE Pacific Street, Box 356460, Seattle, WA, 98195, USA.
  • Nelson JL; Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
  • Kanaan SB; Department of Medicine, University of Washington, Seattle, WA, USA.
Reprod Sci ; 30(4): 1157-1164, 2023 04.
Article en En | MEDLINE | ID: mdl-36168088
Bidirectional exchange of cells between mother and fetus establishes microchimerism (Mc). Mc can persist for decades and is associated with later-life health and disease. Greater fetal Mc is detected in the maternal compartment in preeclampsia (PE), but whether maternal Mc (MMC) in umbilical cord blood (CB) is altered in PE is unknown. We evaluated MMc in CB from normal and PE pregnancies. DNA from CB mononuclear cells following placental delivery (n = 36 PE, n = 37 controls) and maternal blood was extracted and genotyped. MMc, quantified by qPCR assays targeting maternal-specific nonshared polymorphisms in CB, was compared using logistic and negative binomial regression models. Clinically and statistically relevant confounders were included, and included the total number of cell equivalents tested, gravidity, mode of delivery, birthweight, and fetal sex. PE participants delivered at earlier gestational ages, with higher Cesarean rates, and lower infant birthweights. CB MMc detection was similar between PE and controls (52.8% vs. 51.3%, respectively, p = 0.90) and unchanged after adjustment for confounders. MMc concentration was not different between groups (mean 73.7 gEq/105 gEq in PE vs. mean 22.8 gEq/105 in controls, p = 0.56), including after controlling for confounders (p = 0.64). There was no difference in CB MMc detection or concentration between PE and normal pregnancies, despite previously noted greater fetal Mc in the maternal compartment. This suggests possible differential transfer of cells at the maternal fetal interface in PE. Phenotypic evaluation of Mc cells may uncover underlying mechanisms for differential cellular exchange between mother and fetus in PE.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Placenta / Preeclampsia Límite: Female / Humans / Pregnancy Idioma: En Revista: Reprod Sci Asunto de la revista: MEDICINA REPRODUTIVA Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Placenta / Preeclampsia Límite: Female / Humans / Pregnancy Idioma: En Revista: Reprod Sci Asunto de la revista: MEDICINA REPRODUTIVA Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos