{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,29]],"date-time":"2026-06-29T12:19:54Z","timestamp":1782735594404,"version":"3.54.5"},"reference-count":107,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,5,6]],"date-time":"2023-05-06T00:00:00Z","timestamp":1683331200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008781","name":"Pomeranian Medical University","doi-asserted-by":"publisher","award":["WFB-431-02\/S\/12\/2023"],"award-info":[{"award-number":["WFB-431-02\/S\/12\/2023"]}],"id":[{"id":"10.13039\/501100008781","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Biomolecules"],"abstract":"<jats:p>The aim of this study was to evaluate the intensity of oxidative stress by measuring the concentrations of lipid peroxidation products (LPO) in fetal membrane, umbilical cord, and placenta samples obtained from women with multiple pregnancies. Additionally, the effectiveness of protection against oxidative stress was assessed by measuring the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), and glutathione reductase (GR). Due to the role of iron (Fe), copper (Cu), and zinc (Zn) as cofactors for antioxidant enzymes, the concentrations of these elements were also analyzed in the studied afterbirths. The obtained data were compared with newborn parameters, selected environmental factors, and the health status of women during pregnancy to determine the relationship between oxidative stress and the health of women and their offspring during pregnancy. The study involved women (n = 22) with multiple pregnancies and their newborns (n = 45). The Fe, Zn, and Cu levels in the placenta, umbilical cord, and fetal membrane were determined using inductively coupled plasma atomic emission spectroscopy (ICP-OES) using an ICAP 7400 Duo system. Commercial assays were used to determine SOD, GPx, GR, CAT, and LPO activity levels. The determinations were made spectrophotometrically. The present study also investigated the relationships between trace element concentrations in fetal membrane, placenta, and umbilical cord samples and various maternal and infant parameters in women. Notably, a strong positive correlation was observed between Cu and Zn concentrations in the fetal membrane (p = 0.66) and between Zn and Fe concentrations in the placenta (p = 0.61). The fetal membrane Zn concentration exhibited a negative correlation with shoulder width (p = \u22120.35), while the placenta Cu concentration was positively correlated with placenta weight (p = 0.46) and shoulder width (p = 0.36). The umbilical cord Cu level was positively correlated with head circumference (p = 0.36) and birth weight (p = 0.35), while the placenta Fe concentration was positively correlated with placenta weight (p = 0.33). Furthermore, correlations were determined between the parameters of antioxidative stress (GPx, GR, CAT, SOD) and oxidative stress (LPO) and the parameters of infants and maternal characteristics. A negative correlation was observed between Fe and LPO product concentrations in the fetal membrane (p = \u22120.50) and placenta (p = \u22120.58), while the Cu concentration positively correlated with SOD activity in the umbilical cord (p = 0.55). Given that multiple pregnancies are associated with various complications, such as preterm birth, gestational hypertension, gestational diabetes, and placental and umbilical cord abnormalities, research in this area is crucial for preventing obstetric failures. Our results could serve as comparative data for future studies. However, we advise caution when interpreting our results, despite achieving statistical significance.<\/jats:p>","DOI":"10.3390\/biom13050797","type":"journal-article","created":{"date-parts":[[2023,5,8]],"date-time":"2023-05-08T03:34:53Z","timestamp":1683516893000},"page":"797","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["The Trace Element Concentrations and Oxidative Stress Parameters in Afterbirths from Women with Multiple Pregnancies"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3055-3357","authenticated-orcid":false,"given":"Konrad","family":"Grzeszczak","sequence":"first","affiliation":[{"name":"Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2766-7783","authenticated-orcid":false,"given":"Patrycja","family":"Kapczuk","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0756-6483","authenticated-orcid":false,"given":"Patrycja","family":"Kupnicka","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8517-0364","authenticated-orcid":false,"given":"Donata Kinga","family":"Simi\u0144ska","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joanna","family":"Lebdowicz-Knul","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sebastian Karol","family":"Kwiatkowski","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1755-155X","authenticated-orcid":false,"given":"Natalia","family":"\u0141anocha-Arendarczyk","sequence":"additional","affiliation":[{"name":"Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4497-4395","authenticated-orcid":false,"given":"Dariusz","family":"Chlubek","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3796-5493","authenticated-orcid":false,"given":"Danuta Izabela","family":"Kosik-Bogacka","sequence":"additional","affiliation":[{"name":"Independent Laboratory of Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powsta\u0144c\u00f3w Wielkopolskich 72, 70-111 Szczecin, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Farias, P.M., Marcelino, G., Santana, L.F., de Almeida, E.B., Guimar\u00e3es, R.d.C.A., Pott, A., Hiane, P.A., and Freitas, K.dC. 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