[Three Chinese children with Niemann-Pick disease type C with neonatal cholestasis as initial presentation].
OBJECTIVE
To analyze the clinical characteristics of three Chinese cases of Niemann-Pick disease type C patients with neonatal cholestasis as initial presentation, and enhance awareness of Niemann-Pick disease type C among pediatricians.


METHODS
Three sporadic cases with confirmed Niemann-Pick disease type C initially presented as neonatal cholestasis were retrospectively reviewed in this study. Their peripheral blood specimens were collected after obtaining informed consent. All exons and the intron-exon boundaries of NPC1 gene were examined by bi-directional sequencing.


RESULTS
Three patients, 1 female and 2 males, aged from 2 months to 5 years and 10 months, all first complained of jaundice in the neonatal period. Laboratory tests showed total bilirubin and direct bilirubin significantly increased with predominant increase of direct bilirubin. Total bile acid, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were also increased, while high-density lipoprotein cholesterol decreased. All patients were also accompanied by hepatosplenomegaly, with two of them having increased bronchovascular markings in chest X-ray. Two heterozygous changes of NPC1 gene, c.2741G>T +c.3020C>G (p. C914F + p. P1007R), c.2177G>C + c.3734_ 3735delCT (p.R726T + p. P1245RfsX12), and c.2054T>C + c.2128C>T(p.I685T + p.Q710X), were identified in patient 1, 2 and 3, respectively.


CONCLUSIONS
We reported three cases suffered from Niemann-Pick disease type C with initial presentation as neonatal cholestasis in the mainland of China. For newborns with prolonged jaundice in the neonatal period, as well as neonatal cholestasis, hepatosplenomegaly, Niemann-Pick type C should be included in consideration of differential diagnosis. Genetic testing can identify causative mutations for diagnosis.
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Rui
R
Yang
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Dongqiong
D
Tan
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Yu
Y
Wang
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Jun
J
Ye
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Lianshu
L
Han
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Wenjuan
W
Qiu
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
Xuefan
X
Gu
Department of Pediatric Endocrinologic, Genetic and Metabolic Diseases, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China. Email: huiwenzhang@yahoo.com.
Huiwen
H
Zhang
D044466:Asian People; D001647:Bile Acids and Salts; D001663:Bilirubin; D002648:Child; D002675:Child, Preschool; D002681:China; D002779:Cholestasis / Q000209:etiology*; D005091:Exons; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D008075:Lipoproteins, HDL; D008297:Male; D009154:Mutation; D052556:Niemann-Pick Disease, Type C / Q000150:complications / Q000175:diagnosis* / Q000235:genetics / Q000473:pathology; D009542:Niemann-Pick Diseases; D012189:Retrospective Studies; D013163:Splenomegaly
D001647:Bile Acids and Salts; D008075:Lipoproteins, HDL; D001663:Bilirubin