{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T19:11:12Z","timestamp":1772565072801,"version":"3.50.1"},"reference-count":107,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T00:00:00Z","timestamp":1772496000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000070","name":"National Institute of Biomedical Imaging and Bioengineering","doi-asserted-by":"publisher","award":["1R01EB030130-01A1"],"award-info":[{"award-number":["1R01EB030130-01A1"]}],"id":[{"id":"10.13039\/100000070","id-type":"DOI","asserted-by":"publisher"}]},{"name":"The TRANSCEND Program in Maternal Child Health Nutrition","award":["T7949101"],"award-info":[{"award-number":["T7949101"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:sec id=\"sec001\">\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Gestational diabetes mellitus (GDM) is associated with increased placental weight and the presence of placental malperfusion lesions, likely related to high blood glucose. The relationship between high glucose without overt GDM, and placental characteristics is not well understood.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec002\">\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To examine the relationships between glucose challenge test (GCT) concentrations, GDM, and placental characteristics associated with GDM.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec003\">\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      We conducted a secondary analysis of medical record data from singleton placentas sent to pathology at Northwestern Memorial Hospital (2011\u20132022; n\u2009=\u200911,585). Placentas were submitted based on standard clinical protocol. Data included maternal demographic variables, GCT concentrations, GDM diagnosis, placental weight, and vascular malperfusion lesions (accelerated villous maturation, increased syncytial knots, delayed villous maturation, and increased perivillous fibrin deposition). We classified GCT\u2009&lt;140 mg\/dL as pass and \u2265140 mg\/dL as fail. GDM was classified by diagnosis. We categorized glucose groups into\n                      <jats:italic>pass GCT\/no GDM<\/jats:italic>\n                      ,\n                      <jats:italic>fail GCT\/no GDM<\/jats:italic>\n                      , and\n                      <jats:italic>GDM<\/jats:italic>\n                      . We used linear and Poisson (due to non-convergence of log-binomial) regression models to examine the association between GCT concentrations or groups with placental outcomes, adjusting for maternal age, race and ethnicity, parity, gestational age at delivery, and infant sex.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec004\">\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of placentas sent to pathology, 17% were in the\n                      <jats:italic>fail GCT\/no GDM<\/jats:italic>\n                      group and 5% were in the\n                      <jats:italic>GDM<\/jats:italic>\n                      group. Compared to the\n                      <jats:italic>pass GCT\/no GDM<\/jats:italic>\n                      group, the adjusted mean placental weight was heavier by 13.6 grams [95% CI: 8.8, 18.3] in the\n                      <jats:italic>fail GCT\/no GDM<\/jats:italic>\n                      and 22.0 grams [13.8, 30.2] in the\n                      <jats:italic>GDM<\/jats:italic>\n                      group. Patients diagnosed with GDM had a 36% [2%, 81%] increased adjusted risk of delayed villous maturation compared to the\n                      <jats:italic>pass GCT\/no GDM<\/jats:italic>\n                      . The risk of the other lesions (accelerated villous maturation, increased syncytial knots, and increased perivillous fibrin deposition) was not significantly different between groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec id=\"sec005\">\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>GDM and high glucose concentrations without GDM were associated with heavier placentas. Patients with GDM had a higher risk of delayed villous maturation, but risk of other placental lesions was similar.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1371\/journal.pone.0325415","type":"journal-article","created":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T18:22:20Z","timestamp":1772562140000},"page":"e0325415","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["The relationship between maternal glucose concentrations, gestational diabetes mellitus, placental weight, and placental vascular malperfusion lesions: A retrospective study of a U.S. pregnancy cohort"],"prefix":"10.1371","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7335-414X","authenticated-orcid":true,"given":"Amrita","family":"Arcot","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kelly","family":"Gallagher","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeffery A.","family":"Goldstein","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5661-7785","authenticated-orcid":true,"given":"Alison D.","family":"Gernand","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2026,3,3]]},"reference":[{"key":"pone.0325415.ref001","unstructured":"Centers for Disease Control and Prevention US, Department of Health and Human Services US. 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