Imerslund-Gräsbeck syndrome with developmental cataract

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Imerslund-Gräsbeck syndrome (selective vitamin B12 malabsorption with proteinuria)

Imerslund-Gräsbeck syndrome (IGS) or selective vitamin B(12) (cobalamin) malabsorption with proteinuria is a rare autosomal recessive disorder characterized by vitamin B(12) deficiency commonly resulting in megaloblastic anemia, which is responsive to parenteral vitamin B(12) therapy and appears in childhood. Other manifestations include failure to thrive and grow, infections and neurological d...

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Selective Intestinal Cobalamin Malabsorption with Proteinuria (Imerslund‐Gräsbeck Syndrome) in Juvenile Beagles

BACKGROUND Selective intestinal cobalamin malabsorption with mild proteinuria (Imerslund-Gräsbeck syndrome; I-GS), is an autosomal recessive disorder of dogs caused by mutations in AMN or CUBN that disrupt cubam function and which can present as a medical emergency. OBJECTIVES To describe the clinical, metabolic, and genetic bases of I-GS in Beagles. ANIMALS Four cobalamin-deficient and 43 ...

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Vit. B12 Deficiency in Children (imerslund-gräsbeck Syndrome in Two Pairs of Siblings).

UNLABELLED Improvement in the quality of life in Europe and North America in last decades caused that economical and social aspects of living conditions of the population have less effect and genetic defects of malabsorption of vitamin B12 became the main reason for cobalamin deficiency in children. Imerslund-Grasbeck syndrome (IGS) is characterized by vitamin B12 deficiency that leads usually ...

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Ancient founder mutation is responsible for Imerslund-Gräsbeck Syndrome among diverse ethnicities

BACKGROUND Imerslund-Gräsbeck syndrome (IGS) was described just over 50 years ago by Olga Imerslund and Ralph Gräsbeck and colleagues. IGS is caused by specific malabsorption of cobalamin (Cbl) due to bi-allelic mutations in either the cubilin gene (CUBN) or the human amnionless homolog (AMN). Mutations in the two genes are commonly seen in founder populations or in societies with a high degree...

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A Frameshift Mutation in the Cubilin Gene (CUBN) in Border Collies with Imerslund-Gräsbeck Syndrome (Selective Cobalamin Malabsorption)

Imerslund-Gräsbeck syndrome (IGS) or selective cobalamin malabsorption has been described in humans and dogs. IGS occurs in Border Collies and is inherited as a monogenic autosomal recessive trait in this breed. Using 7 IGS cases and 7 non-affected controls we mapped the causative mutation by genome-wide association and homozygosity mapping to a 3.53 Mb interval on chromosome 2. We re-sequenced...

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ژورنال

عنوان ژورنال: JCRS Online Case Reports

سال: 2017

ISSN: 2214-1677

DOI: 10.1016/j.jcro.2017.10.001