Predictive value of PAPP‑A for ectopic pregnancy and analysis of related factors

Zhang,Xiaoyun; Wang,Chunxia

doi:10.3892/etm.2021.10233

Predictive value of PAPP‑A for ectopic pregnancy and analysis of related factors

Authors:
- Xiaoyun Zhang
- Chunxia Wang
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Affiliations: Department of Obstetrics, Affiliated Hospital of Jining Medical University, Jining, Shandong 272000, P.R. China
Published online on: May 26, 2021 https://doi.org/10.3892/etm.2021.10233
Article Number: 801
Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present study was designed to analyze the expression of pregnancy‑associated plasma protein‑A (PAPP‑A) in the serum of patients with ectopic pregnancy (EP) and related factors inducing this condition. Seventy‑five patients with EP admitted to the Affiliated Hospital of Jining Medical University from January 2018 to February 2019 were selected as the research group, and another 59 healthy pregnant women of the corresponding age, gravidity and gestational week were enrolled in the control group. ELISA was employed to detect the serum expression levels of PAPP‑A and inflammatory factors such as interleukin‑8 (IL‑8) and tumor necrosis factor‑α (TNF‑α). ROC was adopted to evaluate the diagnostic value of serum PAPP‑A in patients with EP, and Pearson correlation coefficient was applied to analyze the correlation of PAPP‑A with inflammatory factors IL‑8 and TNF‑α. Serum PAPP‑A expression was significantly lower in EP patients than those in the control group. The area under the curve (AUC) of serum PAPP‑A in diagnosing EP patients was 0.812, and the PAPP‑A value in the control group was significantly higher than that of the research group at 7‑8 weeks and ≥9 weeks. With regard to the expression of inflammatory factors, the research group presented markedly higher IL‑8 and TNF‑α levels than the control group. PAPP‑A was negatively related to inflammatory factors IL‑8 and TNF‑α in the research group. In addition, it was revealed that patients with a history of genital surgery, salpingotomy, pelvic infection, EP or low PAPP‑A expression were at high risk of EP. In conclusion, PAPP‑A was revealed to be lowly expressed in the serum of EP patients, and to negatively be correlated with inflammatory factors IL‑8 and TNF‑α, which may serve as a useful marker for the diagnosis and prognosis of EP.

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