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Leukocyte CA was assessed using a modified Boyden chamber assay. Extract chemokine and maternal progesterone concentrations were quantified by enzyme immunoassay.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Only the extracts from amniochorion demonstrated increased\n                      <jats:styled-content style=\"fixed-case\">CA<\/jats:styled-content>\n                      through late gestation and labor. In contrast,\n                      <jats:styled-content style=\"fixed-case\">CA<\/jats:styled-content>\n                      was decreased in extracts from amniochorion and cervix from animals after\n                      <jats:styled-content style=\"fixed-case\">RU<\/jats:styled-content>\n                      486\u2010induced\n                      <jats:styled-content style=\"fixed-case\">PTL<\/jats:styled-content>\n                      . Maternal progesterone concentrations remained high in all groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>\n                      Leukocyte\n                      <jats:styled-content style=\"fixed-case\">CA<\/jats:styled-content>\n                      of intrauterine tissues is increased in term spontaneous labor. However,\n                      <jats:styled-content style=\"fixed-case\">RU<\/jats:styled-content>\n                      486\u2010induced preterm labor occurs in the absence of increased\n                      <jats:styled-content style=\"fixed-case\">CA<\/jats:styled-content>\n                      .\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/aji.12333","type":"journal-article","created":{"date-parts":[[2014,10,20]],"date-time":"2014-10-20T05:53:19Z","timestamp":1413784399000},"page":"341-352","source":"Crossref","is-referenced-by-count":18,"title":["Chemotactic Activity of Gestational Tissues Through Late Pregnancy, Term Labor, and\n                    <scp>RU<\/scp>\n                    486\u2010Induced Preterm Labor in Guinea Pigs"],"prefix":"10.1111","volume":"73","author":[{"given":"Nardhy","family":"Gomez\u2010Lopez","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology Perinatology Research Branch Wayne State 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