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A New Variant Mutation in SKIV2L Gene in Case of Trichohepatoenteric Syndrome.


ABSTRACT: Trichohepatoenteric syndrome is an autosomal recessive genetic disease with an estimated prevalence of 1:100,000. The mutation of the disease is placed either in SKIV2L or TTC37 genes. The onset of presentation is variable, but symptoms usually start with intractable diarrhea associated with woolly hair abnormality, immune dysfunction, and sometimes hepatic abnormality. This case is of a 10-month-old girl who was born at 37 + 2 weeks due to symmetrical intrauterine growth restriction (IUGR), with a low birth weight (1320 g). It was noticed during her stay in NICU that she had excessive diarrhea on day 8. Gastroenterology suggested starting an extensively-hydrolyzed formula, but no improvement noticed. The multidisciplinary teams decided to order whole-exome sequencing analysis after excluding diarrhea causes. The analysis detected a new variant mutation (c.1297C > T) p. (Arg433Cys). To our knowledge, this is the first time detected in a homozygous state in the SKIV2L gene, as this variant mutation has not been described in any previous literature. Our case was managed mainly by total parenteral nutrition. The patient responded to the treatment appropriately.

SUBMITTER: Taher ZA 

PROVIDER: S-EPMC7717663 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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A New Variant Mutation in <i>SKIV2L</i> Gene in Case of Trichohepatoenteric Syndrome.

Taher Ziad A ZA   Alzahrani Saeed S   Alsaghir Abdullah A   Nouh Faris F   Alshumrani Mesbah M  

Pediatric reports 20201026 3


Trichohepatoenteric syndrome is an autosomal recessive genetic disease with an estimated prevalence of 1:100,000. The mutation of the disease is placed either in <i>SKIV2L</i> or <i>TTC37</i> genes. The onset of presentation is variable, but symptoms usually start with intractable diarrhea associated with woolly hair abnormality, immune dysfunction, and sometimes hepatic abnormality. This case is of a 10-month-old girl who was born at 37 + 2 weeks due to symmetrical intrauterine growth restricti  ...[more]

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