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  • Title: Lysyl oxidase like protein-2 (LOXL-2); a novel marker for prediction of intrahepatic cholestasis of pregnancy.
    Author: Turhan U, Şahin B, Dağ İ.
    Journal: J Matern Fetal Neonatal Med; 2021 Jul; 34(14):2363-2368. PubMed ID: 33627052.
    Abstract:
    OBJECTIVE: Lysyl oxidase like protein 2 (LOXL-2) is an enzyme that is involved in the development of hepatic fibrosis and bile duct epithelial injury in hepatic cholestasis. Our aim was to investigate maternal serum levels of LOXL-2 and their relationship with fasting total bile acid (FTBA) levels in patients with intrahepatic cholestasis of pregnancy (ICP). MATERIALS AND METHODS: Thirty-five pregnant women with ICP and 35 healthy women with uncomplicated pregnancies as the control group, were included in this cross-sectional study. Maternal serum LOXL-2, FTBA and other liver function test levels were compared between the two groups. The predictive cutoff value for LOXL-2 level in ICP was specified. RESULTS: Serum LOXL-2 levels were found to be higher in the ICP group compared to the control group (225.699 ± 142.453 vs. 127.731 ± 63.419 pg/mL, p = .001). There was a significant positive correlation between serum LOXL-2 levels and FTBA levels (r = 0.330, p = .003). The optimal cutoff point for LOXL-2 for identifying increased risk of ICP was found to be ≥102 pg/mL, for which the sensitivity and specificity were 96.87% and 48.57%, respectively (p < .001). CONCLUSIONS: Maternal serum LOXL-2 levels were significantly higher in women with ICP. LOXL-2 may be both an initiating factor in the pathophysiology of ICP and a marker in the prediction. It may also be a target in terms of preventing strategies in ICP.
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