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LPIN1 gene mutations: a major cause of severe rhabdomyolysis in early childhood

Identifieur interne : 007789 ( Main/Merge ); précédent : 007788; suivant : 007790

LPIN1 gene mutations: a major cause of severe rhabdomyolysis in early childhood

Auteurs : Caroline Michot [France] ; Laurence Hubert [France] ; Michèle Brivet [France] ; Linda De Meirleir [Belgique] ; Vassili Valayannopoulos [France] ; Wolfgang Müller-Felber [Allemagne] ; Ramesh Venkateswaran [Royaume-Uni] ; Hélène Ogier [France] ; Isabelle Desguerre [France] ; Cécilia Altuzarra [France] ; Elizabeth Thompson [Australie] ; Martin Smitka [Allemagne] ; Angela Huebner [Allemagne] ; Marie Husson [France] ; Rita Horvath [Allemagne, Royaume-Uni] ; Patrick Chinnery [Royaume-Uni] ; Frederic M. Vaz [Pays-Bas] ; Arnold Munnich [France] ; Orly Elpeleg [Israël] ; Agnès Delahodde [France] ; Yves De Keyzer [France] ; Pascale De Lonlay [France]

Source :

RBID : ISTEX:6FF43B518C71E2A89A7019E1A1363AEB637F457E

Descripteurs français

English descriptors

Abstract

Autosomal recessive LPIN1mutations have been recently described as a novel cause of rhabdomyolysis in a few families. The purpose of the study was to evaluate the prevalence of LPIN1mutations in patients exhibiting severe episodes of rhabdomyolysis in infancy. After exclusion of primary fatty acid oxidation disorders, LPIN1 coding sequence was determined in genomic DNA and cDNA. Among the 29 patients studied, 17 (59%) carried recessive nonsense or frameshift mutations, or a large scale intragenic deletion. In these 17 patients, episodes of rhabdomyolysis occurred at a mean age of 21 months. Secondary defect of mitochondrial fatty oxidation or respiratory chain was found in skeletal muscle of two patients. The intragenic deletion, c.2295‐866_2410‐30del, was identified in 8/17 patients (47%), all Caucasians, and occurred on the background of a common haplotype, suggesting a founder effect. This deleted human LPIN1 form was unable to complement Δpah1 yeast for growth on glycerol, in contrast to normal LPIN1. Since more than 50% of our series harboured LPIN1mutations, LPIN1 should be regarded as a major cause of severe myoglobinuria in early childhood. The high frequency of the intragenic LPIN1deletion should provide a valuable criterion for fast diagnosis, prior to muscle biopsy. © 2010 Wiley‐Liss, Inc.

Url:
DOI: 10.1002/humu.21282

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ISTEX:6FF43B518C71E2A89A7019E1A1363AEB637F457E

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<name sortKey="Delahodde, Agnes" sort="Delahodde, Agnes" uniqKey="Delahodde A" first="Agnès" last="Delahodde">Agnès Delahodde</name>
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<name sortKey="Ogier, Helene" sort="Ogier, Helene" uniqKey="Ogier H" first="Hélène" last="Ogier">Hélène Ogier</name>
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<region type="region">Nouvelle-Aquitaine</region>
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<name sortKey="Horvath, Rita" sort="Horvath, Rita" uniqKey="Horvath R" first="Rita" last="Horvath">Rita Horvath</name>
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<name sortKey="Vaz, Frederic M" sort="Vaz, Frederic M" uniqKey="Vaz F" first="Frederic M." last="Vaz">Frederic M. Vaz</name>
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<name sortKey="Elpeleg, Orly" sort="Elpeleg, Orly" uniqKey="Elpeleg O" first="Orly" last="Elpeleg">Orly Elpeleg</name>
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<country xml:lang="fr">Israël</country>
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<name sortKey="Delahodde, Agnes" sort="Delahodde, Agnes" uniqKey="Delahodde A" first="Agnès" last="Delahodde">Agnès Delahodde</name>
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<settlement type="city">Orsay</settlement>
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<title level="j" type="main">Human Mutation</title>
<title level="j" type="alt">HUMAN MUTATION</title>
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<keywords scheme="KwdEn" xml:lang="en">
<term>Barth syndrome</term>
<term>Caucasian origin</term>
<term>Cdna</term>
<term>Common haplotype</term>
<term>Complete medium</term>
<term>Cpt2</term>
<term>Cpt2 activity</term>
<term>Deleterious nature</term>
<term>Deletion</term>
<term>Dual roles</term>
<term>Early childhood</term>
<term>Exon</term>
<term>Fasting</term>
<term>Fatty acid oxidation</term>
<term>Febrile illnesses</term>
<term>Founder effect</term>
<term>Gene expression</term>
<term>Genomic</term>
<term>Glucose</term>
<term>Hba1c level</term>
<term>High frequency</term>
<term>Intragenic</term>
<term>Intragenic deletion</term>
<term>Intragenic lpin1 deletion</term>
<term>Lipid</term>
<term>Lipid metabolism</term>
<term>Local anaesthetic</term>
<term>Long range</term>
<term>Lpin1</term>
<term>Lpin1 gene</term>
<term>Lpin1 intragenic deletion</term>
<term>Lpin1 mutations</term>
<term>Lxxil motifs</term>
<term>Major cause</term>
<term>Metabolic</term>
<term>Metabolic diseases</term>
<term>Metabolic investigations</term>
<term>Mitochondrial</term>
<term>Multiple roles</term>
<term>Muscle biopsy</term>
<term>Mutation</term>
<term>Myoglobinuria</term>
<term>Myoglobinuric patients</term>
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<term>Nonsense mutations</term>
<term>Novel cause</term>
<term>Pah1</term>
<term>Pah1 cells</term>
<term>Pah1 yeast strain</term>
<term>Phospholipid</term>
<term>Plasmid encoding</term>
<term>Reue</term>
<term>Rhabdomyolysis</term>
<term>Severe myoglobinuria</term>
<term>Severe rhabdomyolysis</term>
<term>Skeletal muscle</term>
<term>Skeletal muscle biopsy</term>
<term>Wild type cells</term>
<term>Yeast</term>
<term>Yeast cells</term>
<term>Yeast complementation assay</term>
<term>Young patients</term>
<term>Zeharia</term>
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<term>Barth syndrome</term>
<term>Caucasian origin</term>
<term>Cdna</term>
<term>Common haplotype</term>
<term>Complete medium</term>
<term>Cpt2</term>
<term>Cpt2 activity</term>
<term>Deleterious nature</term>
<term>Deletion</term>
<term>Dual roles</term>
<term>Early childhood</term>
<term>Exon</term>
<term>Fasting</term>
<term>Fatty acid oxidation</term>
<term>Febrile illnesses</term>
<term>Founder effect</term>
<term>Gene expression</term>
<term>Genomic</term>
<term>Glucose</term>
<term>Hba1c level</term>
<term>High frequency</term>
<term>Intragenic</term>
<term>Intragenic deletion</term>
<term>Intragenic lpin1 deletion</term>
<term>Lipid</term>
<term>Lipid metabolism</term>
<term>Local anaesthetic</term>
<term>Long range</term>
<term>Lpin1</term>
<term>Lpin1 gene</term>
<term>Lpin1 intragenic deletion</term>
<term>Lpin1 mutations</term>
<term>Lxxil motifs</term>
<term>Major cause</term>
<term>Metabolic</term>
<term>Metabolic diseases</term>
<term>Metabolic investigations</term>
<term>Mitochondrial</term>
<term>Multiple roles</term>
<term>Muscle biopsy</term>
<term>Mutation</term>
<term>Myoglobinuria</term>
<term>Myoglobinuric patients</term>
<term>Necker hospital</term>
<term>Nonsense mutations</term>
<term>Novel cause</term>
<term>Pah1</term>
<term>Pah1 cells</term>
<term>Pah1 yeast strain</term>
<term>Phospholipid</term>
<term>Plasmid encoding</term>
<term>Reue</term>
<term>Rhabdomyolysis</term>
<term>Severe myoglobinuria</term>
<term>Severe rhabdomyolysis</term>
<term>Skeletal muscle</term>
<term>Skeletal muscle biopsy</term>
<term>Wild type cells</term>
<term>Yeast</term>
<term>Yeast cells</term>
<term>Yeast complementation assay</term>
<term>Young patients</term>
<term>Zeharia</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Petite enfance</term>
<term>Glucose</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Autosomal recessive LPIN1mutations have been recently described as a novel cause of rhabdomyolysis in a few families. The purpose of the study was to evaluate the prevalence of LPIN1mutations in patients exhibiting severe episodes of rhabdomyolysis in infancy. After exclusion of primary fatty acid oxidation disorders, LPIN1 coding sequence was determined in genomic DNA and cDNA. Among the 29 patients studied, 17 (59%) carried recessive nonsense or frameshift mutations, or a large scale intragenic deletion. In these 17 patients, episodes of rhabdomyolysis occurred at a mean age of 21 months. Secondary defect of mitochondrial fatty oxidation or respiratory chain was found in skeletal muscle of two patients. The intragenic deletion, c.2295‐866_2410‐30del, was identified in 8/17 patients (47%), all Caucasians, and occurred on the background of a common haplotype, suggesting a founder effect. This deleted human LPIN1 form was unable to complement Δpah1 yeast for growth on glycerol, in contrast to normal LPIN1. Since more than 50% of our series harboured LPIN1mutations, LPIN1 should be regarded as a major cause of severe myoglobinuria in early childhood. The high frequency of the intragenic LPIN1deletion should provide a valuable criterion for fast diagnosis, prior to muscle biopsy. © 2010 Wiley‐Liss, Inc.</div>
</front>
</TEI>
</record>

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