{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,30]],"date-time":"2024-07-30T01:30:05Z","timestamp":1722303005710},"reference-count":30,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2004,5,7]],"date-time":"2004-05-07T00:00:00Z","timestamp":1083888000000},"content-version":"vor","delay-in-days":6,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American J Rep Immunol"],"published-print":{"date-parts":[[2004,5]]},"abstract":"<jats:p><jats:bold>Problem:\u2002<\/jats:bold> Macrophage colony\u2010stimulating factor (M\u2010CSF) promotes placental growth and maintenance. M\u2010CSF also regulates trophoblast invasion into the placental bed. We evaluated whether M\u2010CSF levels in amniotic fluid during labor contributing to subsequent delivery differed from those before the onset of labor in normal pregnancies.<\/jats:p><jats:p><jats:bold>Method of study:\u2002<\/jats:bold> This study enrolled 48 Japanese women experiencing normal pregnancies with single fetuses who had no infection. Of these pregnancies, 24 were women during labor: 22 led to subsequent term delivery (labors); two had premature delivery. The other 24 were women without labor underwent cesarean section (controls). These two groups (22 labors and 24 controls) were compared. The average gestational age at entry was 38\u2003weeks of gestation. The women's ages and gestational ages did not differ significantly between the two groups. Amniotic fluid was collected and the M\u2010CSF levels were compared between two groups. The M\u2010CSF level was determined by the sandwich enzyme\u2010linked immunosorbent assay (ELISA) method.<\/jats:p><jats:p><jats:bold>Results:\u2002<\/jats:bold> The levels of M\u2010CSF in amniotic fluid did not differ significantly between the women during labor and those without labor.<\/jats:p><jats:p><jats:bold>Conclusions:\u2002<\/jats:bold> M\u2010CSF in amniotic fluid may not contribute to the onset of labor in term pregnancy and\/or labor resulting in subsequent delivery may not induce the production and secretion of M\u2010CSF into amniotic cavity.<\/jats:p>","DOI":"10.1111\/j.1600-0897.2004.00164.x","type":"journal-article","created":{"date-parts":[[2004,5,7]],"date-time":"2004-05-07T14:50:20Z","timestamp":1083941420000},"page":"329-335","source":"Crossref","is-referenced-by-count":3,"title":["Macrophage Colony\u2010Stimulating Factor Levels in Amniotic Fluid Before and After the Onset of Labor Do Not Differ in Normal 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