Abstract

Currently, there are no accurate means to predict spontaneous preterm birth (SPTB). Recently, we observed low expression of alpha-1 antitrypsin (AAT) in SPTB placentas. Present aim was to compare the concentrations of maternal serum AAT in pregnancies with preterm and term deliveries. Serum C-reactive protein (CRP) was used as a reference inflammatory marker. Two populations were studied. The first population comprised women who eventually gave birth spontaneously preterm (SPTB group) or term (control group). The second population included pregnant women shortly before delivery and nonpregnant women. We observed that serum AAT levels were higher in the SPTB group than in the controls, and a similar difference was observed when serum CRP was considered in multivariable analysis. However, the overlap in the AAT concentrations was considerable. No statistical significance was observed in serum AAT levels between preterm and term pregnancies at delivery. However, AAT levels were higher at delivery compared to nonpregnant controls. We did not observe a strong correlation between serum AAT and CRP in early pregnancy samples and at labor. We propose that during early pregnancy, complicated by subsequent SPTB, modest elevation of serum AAT associates with SPTB.

Details

Title
Maternal serum alpha-1 antitrypsin levels in spontaneous preterm and term pregnancies
Author
Tissarinen, Pinja 1 ; Tiensuu, Heli 1 ; Haapalainen, Antti M. 1 ; Ronkainen, Eveliina 1 ; Laatio, Liisa 2 ; Vääräsmäki, Marja 3 ; Öhman, Hanna 4 ; Hallman, Mikko 1 ; Rämet, Mika 5 

 University of Oulu, Research Unit of Clinical Medicine and Medical Research Center, Department of Pediatrics and Adolescent Medicine, Oulu University Hospital, Oulu, Finland (GRID:grid.10858.34) (ISNI:0000 0001 0941 4873) 
 University of Oulu, Research Unit of Clinical Medicine, Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland (GRID:grid.10858.34) (ISNI:0000 0001 0941 4873) 
 University of Oulu, Research Unit of Clinical Medicine and Medical Research Center, Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland (GRID:grid.10858.34) (ISNI:0000 0001 0941 4873) 
 University of Oulu, Faculty of Medicine, Biobank Borealis of Northern Finland, Oulu University Hospital, Oulu, Finland (GRID:grid.10858.34) (ISNI:0000 0001 0941 4873) 
 University of Oulu, Research Unit of Clinical Medicine and Medical Research Center, Department of Pediatrics and Adolescent Medicine, Oulu University Hospital, Oulu, Finland (GRID:grid.10858.34) (ISNI:0000 0001 0941 4873); Tampere University, Faculty of Medicine and Health Technology, Tampere, Finland (GRID:grid.502801.e) (ISNI:0000 0001 2314 6254) 
Pages
10819
Publication year
2024
Publication date
2024
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3053643202
Copyright
© The Author(s) 2024. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.