Cockayne syndrome (CS) is related to defective DNA transcription and/or repair and belongs to the family of Nucleotide Excision Repair. It is an autosomal recessive multisystemic disorder characterized by mental retardation, microcephaly, severe growth failure with lipoatrophia, sensorial impairment, cutaneous photosensitivity, dental decay, enophtalmios. The disease is progressive causing severe impairments but there's currently no therapeutics for the disease. Growth failure, feeding difficulties and lipoatrophia are prognostic keys of CS but physiopathology is unknown. According to preliminary assays, our goal is to test the hypothesis that cachexia is due to hypometabolism. We also want to test the potential link between this basal metabolism modification and mitochondrial dysfunction and somatotrope axis, and correlation between the basal metabolism degree and global severity of the disease.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
25
* diet assessment * biological evaluation * clinical evaluation * metabolic evaluation (calorimetry)
Centre d'Investigation Clinique
Strasbourg, France
Rest energetic cost measured by indirect calorimetry compared to calculated Black equation
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Rest energetic cost measured by indirect calorimetry compared to calculated theorical equations
Time frame: Day 0
Hormonal axis evaluation and mitochondrial activity measured by level of hormones and lactates/pyruvates in blood
Time frame: Day 0
Respiratory quotient measured by indirect calorimetry
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Fat mass and lean mass measured by impedancemetry
Time frame: Day 0
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