ABCMdb

PMID: 26019043

Czubkowski P, Jankowska I, Pawlowska J
Successful pregnancy after ileal exclusion in progressive familial intrahepatic cholestasis type 2.
Ann Hepatol. 2015 Jul-Aug;14(4):550-2., [PubMed]

Sentences

No. Mutations Sentence Comment

26 ABCB11 p.Asp482Gly PFIC-2 was confirmed by C.1445 A > G; p.Asp482Gly (HOM) mutation in ABCB11 gene, which is characteristic for the Polish population of patients.1 No mutations were found in ATP8B1. Login to comment 59 ABCB11 p.Asp482Gly ABCB11 p.Glu297Gly ABCB11 p.Val444Ala ABCB11 p.Asn591Ser Several estrogens and progesterone metabolites are able to induce trans-inhibition of BSEP and the subsequent toxicity induced by the accumulation of bile acids, which may also play a role in the etiopathogenesis of intrahepatic cholestasis of pregnancy (ICP).10,11 Mutations in MDR3 (ABCB4) gene coding transporter for phospholipids across the canalicular membrane may account for 15% of cases of ICP.12 Interestingly, a Czubkowski P, et al. , 2015; 14 (4): 550-552 few "common" BSEP mutations (including p.E297G, p.D482G, and p.N591S) have been detected in ICP-patients in heterozygous form, and common BSEP polymorphism (p.V444A) has been linked to ICP as well.13 The reoccurrence of BSEP cholestasis and development of ICP may be clinically indistinguishable, since both usually present with pruritus, elevated bile acids and aminotransferases, and normal hepatic imaging.11,12 Moreover, in ICP, mutations or polymorphisms of some hepatobiliary transport proteins may contribute to disease pathogenesis or severity, but on the other hand consideration must be given to the possibility of other rare underlying hepatic disorders that may be unmasked during pregnancy with cholestasis as its first manifestation.14 Thus, the diagnosis of ICP should be given after exclusion of preexisting liver disease.15 Pruritus remains the most important clinical symptom of PFIC-2. Login to comment