Carnitine insufficiency in children with inborn errors of metabolism: prevalence and treatment efficacy
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Ilgar Mamedov
und
Vladimir Sukhorukov
Abstract
Background: Carnitine is necessary for the transfer of long-chain fatty acids from the cytosol into mitochondria for subsequent β-oxidation. A carnitine deficiency results in impaired energy production from fatty acids.
Methods: We reviewed the plasma level of total carnitine, free carnitine, and acylcarnitines in 1270 children with psychomotor retardation, low growth, and weight parameters. Tandem mass spectrometry (MS/MS) was applied. Low free carnitine level in plasma was used as a marker of carnitine deficiency.
Results: A total of 102 (8%) children had free carnitine level <19 μmol/L (norm 19–60 μmol/L). As a result of the subsequent investigation, hereditary diseases were diagnosed in 76 (¾) children and out of that 19 had very low free carnitine plasma level (<10 μmol/L). Fanconi syndrome, fat oxidation defects, primary systemic carnitine deficiency, mitochondrial encephalomyopathy, and Noonan syndrome were revealed in these 19 children.
Conclusion: Efficacy of levocarnitine treatment in children with very low free carnitine level differs according to pathogenesis of diseases. The highest efficacy was observed in primary systemic carnitine deficiency.
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©2015 by De Gruyter
Artikel in diesem Heft
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- Carnitine insufficiency in children with inborn errors of metabolism: prevalence and treatment efficacy
- Comparison of energy expenditure, body composition, metabolic disorders, and energy intake between obese children with a history of craniopharyngioma and children with multifactorial obesity
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Artikel in diesem Heft
- Frontmatter
- Highlight: Turner syndrome
- Turner syndrome – working together with patients and their families
- Turner syndrome patients with bicuspid aortic valves and renal malformations exhibit abnormal expression of X-linked inhibitor of apoptosis protein (XIAP)
- Inhibin B in adolescents and young adults with Turner syndrome
- Mode of initial presentation and chromosomal abnormalities in Irish patients with Turner syndrome: a single-centre experience
- Retrospective evaluation of pubertal development and linear growth of girls with Turner Syndrome treated with oral and transdermal estrogen
- Turner syndrome in Albania and the efficacy of its treatment with growth hormone
- Review articles
- The relation of vitamin D status with metabolic syndrome in childhood and adolescence: an update
- Putting the pieces together: cryptorchidism – do we know everything?
- Original articles
- Investigation of androgen receptor gene mutations in a series of 21 patients with 46,XY disorders of sex development
- Molecular diagnosis of maturity-onset diabetes of the young (MODY) in Turkish children by using targeted next-generation sequencing
- Association of physical activity level with depression, anxiety, and quality of life in children with type 1 diabetes mellitus
- Neonatal diabetes in Ukraine: incidence, genetics, clinical phenotype and treatment
- The effect of intraoperative administration of dexamethasone for PONV prophylaxis on perioperative blood glucose level in obese and normal weight children
- Are obesity and metabolic syndrome associated with plasma adropin levels in children?
- Carnitine insufficiency in children with inborn errors of metabolism: prevalence and treatment efficacy
- Comparison of energy expenditure, body composition, metabolic disorders, and energy intake between obese children with a history of craniopharyngioma and children with multifactorial obesity
- Effect of serum cholesterol on bone mineral density in normal-weight children and adolescents
- Assessment of bone turnover markers and bone mineral density in normal short boys
- Long-term treatment for hyperphenylalaninemia and phenylketonuria: a risk for nutritional vitamin B12 deficiency?
- Risk factors affecting the development of nephrocalcinosis, the most common complication of hypophosphatemic rickets
- Children with hyperthyroidism younger than age 7 require higher mg/kg doses of methimazole to normalize free T4 compared to older children
- Effects of bisphosphonates to treat osteoporosis in children with cerebral palsy: a meta-analysis
- AMH levels at central precocious puberty and premature thelarche: is it a parameter?
- Validating Paediatric Morphometrics: body proportion measurement using photogrammetric anthropometry
- Treatment of central precocious puberty and early puberty with GnRH analog in girls with Williams-Beuren syndrome
- Short communication
- Pilot study on the dietary habits and lifestyles of girls with idiopathic precocious puberty from the city of Rome: potential impact of exposure to flame retardant polybrominated diphenyl ethers
- Patient reports
- Hypomagnesemia due to two novel TRPM6 mutations
- A novel mutation of AMH in three siblings with persistent Mullerian duct syndrome
- Kocher-Debré-Semelaigne syndrome with rhabdomyolysis and increased creatinine
- Anaphylaxis to gonadorelin acetate in a girl with central precocious puberty
- Efficacy and safety of sirolimus in a neonate with persistent hypoglycaemia following near-total pancreatectomy for hyperinsulinaemic hypoglycaemia
