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1.
Medicine (Baltimore) ; 98(39): e17305, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31574858

ABSTRACT

Until now, the recognition of sodium taurocholate cotransporting polypeptide (NTCP) deficiency has been mainly based on sporadic case reports. It was previously believed to be mildly symptomatic and resulting in mild liver dysfunction. However, to our knowledge, there have been no reports about the histopathologic and ultrastructural pathologic characteristics of the disease. The aim of the study was to analyze the clinical, histopathologic and ultrastructural pathologic characteristics of NTCP deficiency in 13 pediatric patients.From August 2012 to October 2018, this retrospective study conducted in the Department of Pediatrics of Tongji Hospital, China analyzed the data of 13 NTCP deficient patients with an SLC10A1 gene mutation. Except for NTCP deficiency, no other liver diseases were present in the patients, which was determined by both a genetic testing panel for jaundice and by reviewing medical records. The laboratory results, imaging, histopathologic, and ultrastructural pathologic information were recorded for analysis.The serum level of total bile acid was high in all 13 patients. All patients had adequate growth and development. Eight of the patients (8/13) presented with visible jaundice and 12 (12/13) were found to have hyperbilirubinemia. A needle liver biopsy was performed in 11 cases, which revealed slightly chronic inflammation in all 11 patients. One of the patients (1/13) was found to be suffering from gallstones.The data showed that although NTCP deficiency was often asymptomatic, some of the patients showed obvious clinical expressions, such as jaundice. Among the 13 pediatric patients with NTCP deficiency, both the biochemical and histopathologic features were similar to those of mild hepatocellular jaundice. In addition, it was determined that the clinical features in the patient with gallstones may have been caused by NTCP deficiency.


Subject(s)
Bile Acids and Salts/blood , Jaundice , Liver Diseases , Liver , Organic Anion Transporters, Sodium-Dependent , Symporters , Child Development , Child, Preschool , China/epidemiology , Genetic Testing/methods , Humans , Image-Guided Biopsy/methods , Infant , Jaundice/diagnosis , Jaundice/etiology , Liver/metabolism , Liver/pathology , Liver Diseases/diagnosis , Liver Diseases/genetics , Liver Diseases/physiopathology , Liver Diseases/therapy , Liver Function Tests/methods , Membrane Glycoproteins/metabolism , Mutation , Organic Anion Transporters, Sodium-Dependent/deficiency , Organic Anion Transporters, Sodium-Dependent/genetics , Pediatrics/methods , Retrospective Studies , Symporters/deficiency , Symporters/genetics
2.
Acta Crystallogr Sect E Struct Rep Online ; 66(Pt 1): o25, 2009 Dec 04.
Article in English | MEDLINE | ID: mdl-21580131

ABSTRACT

There are two mol-ecules in the asymmetric unit of the title compound, C(8)H(4)ClNO(2). In the crystal, they are linked by N-H⋯O hydrogen bonds, generating centrosymmetric, tetra-meric assemblies. A C-H⋯O inter-action also occurs.

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