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Article

Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2

  • Authors:
    • Hongli Zhang
    • Lu Wang
    • Jing Wang
    • Jiangrong Hei
    • Cailian Ruan
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology and Obstetrics, The Affiliated Hospital of Yan'an University, Yan'an, Shaanxi 716000, P.R. China, School of Medicine, Yan'an University, Yan'an, Shaanxi 716000, P.R. China
  • Pages: 561-566
    |
    Published online on: June 10, 2015
       https://doi.org/10.3892/etm.2015.2559
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Abstract

The present study aimed to investigate whether premature rupture of the fetal membrane, combined with subclinical chorioamnionitis, affects pregnancy outcomes. In addition, the association between premature rupture of the fetal membrane (PROM) and the levels of matrix metalloproteinase‑2 (MMP‑2), an inactive proenzyme that can be activated by other factors or signals in humans, was examined. In total, 80 pregnant patients with PROM were classified into the experimental and control groups, according to their final placental pathological diagnosis results. The 40 patients in the experimental group suffered from subclinical chorioamnionitis, while the 40 patients in the control group exhibited no lesions of the placenta or fetal membrane. Tissue samples were collected and the total protein and mRNA were extracted for western blot and quantitative polymerase chain reaction analyses. ELISA was performed in order to detect the levels of MMP‑2 in the serum of the two groups of patients. The rates of cesarean section, puerperal infection, postpartum hemorrhage, preterm incidence, placenta accreta, residual placental blood and stillbirth were all significantly higher in the experimental group compared with the control group. In addition, the mRNA and protein expression levels of MMP‑2 were reduced in the experimental group compared with the control group. ELISA results indicated that the serum MMP‑2 concentrations were also reduced in the patients with PROM. Therefore, the present study demonstrated that the PROM, combined with subclinical chorioamnionitis, significantly affected pregnancy outcomes and was associated with reduced levels of MMP‑2.
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Copy and paste a formatted citation
Spandidos Publications style
Zhang H, Wang L, Wang J, Hei J and Ruan C: Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2. Exp Ther Med 10: 561-566, 2015.
APA
Zhang, H., Wang, L., Wang, J., Hei, J., & Ruan, C. (2015). Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2. Experimental and Therapeutic Medicine, 10, 561-566. https://doi.org/10.3892/etm.2015.2559
MLA
Zhang, H., Wang, L., Wang, J., Hei, J., Ruan, C."Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2". Experimental and Therapeutic Medicine 10.2 (2015): 561-566.
Chicago
Zhang, H., Wang, L., Wang, J., Hei, J., Ruan, C."Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2". Experimental and Therapeutic Medicine 10, no. 2 (2015): 561-566. https://doi.org/10.3892/etm.2015.2559
Copy and paste a formatted citation
x
Spandidos Publications style
Zhang H, Wang L, Wang J, Hei J and Ruan C: Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2. Exp Ther Med 10: 561-566, 2015.
APA
Zhang, H., Wang, L., Wang, J., Hei, J., & Ruan, C. (2015). Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2. Experimental and Therapeutic Medicine, 10, 561-566. https://doi.org/10.3892/etm.2015.2559
MLA
Zhang, H., Wang, L., Wang, J., Hei, J., Ruan, C."Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2". Experimental and Therapeutic Medicine 10.2 (2015): 561-566.
Chicago
Zhang, H., Wang, L., Wang, J., Hei, J., Ruan, C."Premature rupture of the fetal membrane combined with subclinical chorioamnionitis negatively affects pregnancy outcomes by a mechanism associated with reduced levels of matrix metalloproteinase‑2". Experimental and Therapeutic Medicine 10, no. 2 (2015): 561-566. https://doi.org/10.3892/etm.2015.2559
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