Renal involvement in mitochondrial cytopathies
Francesco Emma1, Enrico Bertini, Leonardo Salviati
1Division of Nephrology and Dialysis, Department of Nephrology and Urology, Bambino Gesù Children's Hospital and Research Institute, piazza Sant'Onofrio 4, 00165 Rome, Italy. francesco.emma@opbg.net
Pediatric Nephrology (Berlin, Germany)
|June 10, 2011
Summary
Mitochondrial cytopathies can affect children
Area of Science:
- Pediatric Nephrology
- Mitochondrial Diseases
- Rare Genetic Disorders
Background:
- Mitochondrial cytopathies are rare, multisystemic diseases with complex genetics and variable phenotypes.
- Renal involvement is common in pediatric mitochondrial cytopathies, often presenting as tubular defects like De Toni-Debré-Fanconi syndrome.
- Less common renal manifestations include tubulo-interstitial nephritis, cystic diseases, and glomerular disorders.
Purpose of the Study:
- To summarize the key characteristics of renal mitochondrial cytopathies in children.
- To outline the primary diagnostic approaches for these conditions.
- To highlight treatable forms of renal mitochondrial disease.
Main Methods:
- Review of literature on mitochondrial cytopathies with renal involvement in pediatric populations.
- Analysis of reported renal manifestations, genetic defects, and diagnostic strategies.
- Focus on specific genetic mutations (3243 A>G tRNA(LEU)) and metabolic defects (coenzyme Q10 biosynthesis).
Main Results:
- Proximal tubular defects, including complete De Toni-Debré-Fanconi syndrome, are the most frequent renal symptoms.
- Specific genetic defects, such as 3243 A>G tRNA(LEU) mutations and coenzyme Q10 biosynthesis defects, are associated with glomerular disease.
- Coenzyme Q10 biosynthesis defects represent a treatable cause of renal mitochondrial disease.
Conclusions:
- Renal involvement in pediatric mitochondrial cytopathies is frequent and diverse, ranging from tubular to glomerular defects.
- Accurate diagnosis is crucial for identifying potentially treatable conditions like coenzyme Q10 biosynthesis defects.
- Further research and awareness are needed to improve the management of these rare diseases.
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