scholarly journals Molecular Pathogenesis of Intrahepatic Cholestasis of Pregnancy

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Jianping Xiao ◽  
Zeying Li ◽  
Yutong Song ◽  
Yujie Sun ◽  
Hanfei Shi ◽  
...  

Intrahepatic cholestasis of pregnancy (ICP) is a pregnancy-specific liver disease. The maternal symptoms are characterized by skin pruritus and elevated bile acids, causing several adverse outcomes for fetuses, including an increased risk of preterm birth, meconium-stained amniotic fluid, neonatal depression, respiratory distress syndrome, and stillbirth. Genetic, hormonal, immunological, and environmental factors contribute to the pathogenesis of ICP, and the estrogen-bile acid axis is thought to play a dominant role. The advances in the past 10 years uncover more details of this axis. Moreover, dysregulation of extracellular matrix and oxygen supply, organelle dysfunction, and epigenetic changes are also found to cause ICP, illuminating more potential drug targets for interfering with. Here, we summarize the molecular pathogenesis of ICP with an emphasis on the advancement in the past 10 years, aiming to give an updated full view of this field.

2021 ◽  
Vol 16 (S3) ◽  
pp. 50-55
Author(s):  
Ana Maria SCUTELNICU ◽  
◽  
Brînduşa Ana CIMPOCA-RAPTIS ◽  
Anca Marina CIOBANU ◽  
Nicolae GICĂ ◽  
...  

Intrahepatic cholestasis of pregnancy is the most common liver disease during pregnancy. The main features are maternal pruritus, in the absence of a rash, and raised serum bile acids. Intrahepatic cholestasis of pregnancy is associated with an increased risk of adverse perinatal outcomes, including preterm birth, meconium-stained amniotic fluid, fetal asphyxia with neonatal unit admission or even stillbirth. The main treatment option is ursodeoxycholic acid. We review the etiology, diagnosis, adverse pregnancy outcomes, focusing especially on management of this intriguing condition.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Mingjuan Luo ◽  
Mengyang Tang ◽  
Feng Jiang ◽  
Yizhen Jia ◽  
Robert Kien Howe Chin ◽  
...  

Objective. Intrahepatic cholestasis of pregnancy (ICP) is a common pregnancy-related liver disease and is associated with an increased risk of adverse neonatal outcomes. Ursodeoxycholic acid (UDCA) is the most effective treatment. This study was aimed at investigating the adverse outcomes of ICP and evaluating the effects of treatment with UDCA in patients with ICP. Methods. We included 114 women with ICP and 3725 women without ICP (no-ICP group) who delivered in our hospital between September 2017 and August 2019. The prevalence of ICP in this study was 3.15%. We matched each woman with ICP to five controls. Of all the 114 women with ICP, 73 (64.04%) received UDCA while 41 (35.96%) did not. Logistic multivariate regression analysis was used to compare the adverse outcomes between those with ICP and matched controls as well as between those who received UDCA (UDCA group) and those who did not (non-UDCA group). Results. Compared with controls, women with ICP were more likely to have preeclampsia (adjusted odds ratio, aOR = 16.74 , 95% CI 5.29–52.98), cesarean section ( aOR = 1.76 , 95% CI 1.10–2.81), and preterm birth ( aOR = 24.35 , 95% CI 2.74–216.67). Administration of UDCA reduced the rate of preterm birth (1.37% vs. 14.63%, aOR = 0.10 , 95% CI 0.01–0.90). Conclusion. ICP increased the risk of preeclampsia, cesarean section, and preterm birth. UDCA could reduce the rate of preterm birth.


2019 ◽  
Vol 88 (4) ◽  
pp. 209-217
Author(s):  
Milena Gruszczyńska-Losy ◽  
Adrianna Mostowska ◽  
Łukasz Adamczak ◽  
Paweł Jagodziński ◽  
Ewa Wender-Ożegowska ◽  
...  

Background: Intrahepatic cholestasis of pregnancy (ICP) is the most common liver disorder during gestation. The exact pathogenesis of ICP is multifactorial and still unclear. Therefore, our study aimed to check whether the selected ABCB4and ABCB11nucleotide variants are associated with an increased risk of ICP. Methods:ICP was diagnosed based on clinical symptoms characteristic of this disease and confirmed by increase in serum bile acids and transaminases, spontaneous resolution of clinical symptoms and normalization of laboratory tests after delivery. The total of 86 pregnant women meeting the criteria were included into the study. Healthy pregnant women with uncomplicated pregnancy served as control group (n=310). Sixcommon nucleotide variants in theABCB11and ABCB4genes were genotypedwith the use of high-resolution melting curve analysis. Conclusion:Our study did not show any significant association of analysed ABCB4and ABCB11nucleotide variants with the increased risk of intrahepatic cholestasis of pregnancy.


2017 ◽  
Vol 2017 ◽  
pp. 1-3 ◽  
Author(s):  
Maria Maldonado ◽  
Ali Alhousseini ◽  
Michael Awadalla ◽  
Jay Idler ◽  
Robert Welch ◽  
...  

Intrahepatic cholestasis of pregnancy is seldom associated with significant vitamin K deficiency. We report a case of a 16-year-old primigravid patient at 24 weeks and 3 days of gestation who presented with pruritus, hematuria, and preterm labor. Laboratory work-up showed severe coagulopathy with Prothrombin Time (PT) of 117.8 seconds, International Normalized Ratio (INR) of 10.34, and elevated transaminases suggestive of intrahepatic cholestasis of pregnancy. Her serum vitamin K level was undetectable (<0.1 nMol/L). Initial therapy consisted of intramuscular replacement of vitamin K and administration of fresh frozen plasma. Her hematuria and preterm labor resolved and she was discharged. She presented in active labor and delivered at 27 weeks and 1 day. Her bile acids (93 μ/L) and INR (2.32) had worsened. She delivered a male infant, 1150 grams with Apgar scores 7 and 9. The newborn received 0.5 mg of intramuscular vitamin K shortly after delivery but went on to develop bilateral grade III intraventricular hemorrhages by day 5. Intrahepatic cholestasis in pregnancy and nutrition issues were identified as the main risk factors for the severe coagulopathy of this patient. This case underlines the importance of evaluation of possible severe coagulopathy in patients with intrahepatic cholestasis of pregnancy in order to avoid serious maternal or fetal adverse outcomes.


2021 ◽  
Author(s):  
Chengcai Kong ◽  
Fenglin Mei ◽  
Pingping Xue ◽  
Jingyun Cao ◽  
Yong Li ◽  
...  

Abstract To assess the associations between mode of delivery and pregnancy outcomes in patients with intrahepatic cholestasis of pregnancy (ICP) based on the severity of maternal hypercholanemia. A hospital-based retrospective cohort study was performed between January 1, 2015, and December 31, 2019. Among the 177 women with mild total bile acids, 123 (69.5%) had a vaginal delivery and 54 (30.5%) underwent a cesarean delivery, of which 42 (23.7%) were planned and 12 (6.8%) were unplanned. Among the 50 severe ICP women, 13 (26.0%) had a vaginal delivery and 37 (74.0%) underwent a cesarean delivery, of which 26 (52.0%) were planned and 11 (22.0%) were unplanned. Severe ICP was associated with an increased risk of preterm delivery (P < 0.001), low birthweight (P=0.001), and neonatal intensive care unit admission (P < 0.001). Women with severe ICP (aOR, 5.017; 95% CI 1.848–13.622), planned cesarean delivery (aOR, 5.444; 95%CI 1.723–17.203), or unplanned cesarean delivery (aOR, 5.792; 95%CI 1.384–24.236) had increased risks of adverse fetal outcomes compared to controls. Both planned and unplanned cesarean delivery are associated with a higher incidence of adverse fetal outcomes and severe ICP than vaginal delivery.


2021 ◽  
Vol 81 (08) ◽  
pp. 922-939
Author(s):  
Carsten Hagenbeck ◽  
Amr Hamza ◽  
Sven Kehl ◽  
Holger Maul ◽  
Frank Lammert ◽  
...  

AbstractIntrahepatic cholestasis of pregnancy (ICP) is the most common liver disease specific to pregnancy. The cardinal symptom of pruritus and a concomitant elevated level of bile acids in the serum and/or alanine aminotransferase (ALT) are suggestive for the diagnosis. Overall, the maternal prognosis is good. The fetal outcome depends on the bile acid level. ICP is associated with increased risks for adverse perinatal outcomes, including preterm delivery, meconium-stained amniotic fluid, and stillbirth. Acute fetal asphyxia and not chronic uteroplacental dysfunction leads to stillbirth. Therefore, predictive fetal monitoring is not possible. While medication with ursodeoxycholic acid (UDCA) improves pruritus, it has not been shown to affect fetal outcome. The indication for induction of labour depends on bile acid levels and gestational age. There is a high risk of recurrence in subsequent pregnancies.


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