Denys–Drash syndrome

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Denys–Drash syndrome
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Denys–Drash syndrome (DDS) or Drash syndrome is a rare disorder or syndrome characterized by gonadal dysgenesis, nephropathy, and Wilms' tumor.

Signs and symptoms

Clinically, Denys–Drash is characterized by the triad of pseudohermaphroditism, mesangial renal sclerosis, and Wilms' tumor. The condition first manifests as early nephrotic syndrome and progresses to mesangial renal sclerosis, and ultimately renal failure—usually within the first three years of life.

The presenting characteristics of DDS include loss of playfulness, decreased appetite, weight loss, growth delay, abnormal skeletal development, insomnia, abdominal pain, constipation, and anuria.

Causes

The cause of DDS is most commonly (96% of patients) an abnormality in the WT1 gene (Wilms tumor suppressor gene). These abnormalities include changes in certain exons (9 and 8) and mutations in some alleles of the WT1 gene. Genetically, the syndrome is due to mutations in the Wilms tumor suppressor gene, WT1, which is on chromosome 11 (11p13). These mutations are usually found in exons 8 or 9, but at least one has been reported in exon 4.[1]

Prognosis

A 1994 review of 150 cases reported in the literature found that 38% had died with a mean age of death of 2 years. 32% were still alive at the time of the report with a mean age of 4.65. No data were available for the remainder. The author described living with DDS as "walking a multidimensional tight rope".[2]

History

P. Denys[3] and Allan L. Drash[4] first described the syndrome.

See also

References

  1. da Silva TE, Nishi MY, Costa EM, et al. (August 2011). "A novel WT1 heterozygous nonsense mutation (p.K248X) causing a mild and slightly progressive nephropathy in a 46,XY patient with Denys–Drash syndrome". Pediatr. Nephrol. 26 (8): 1311–5. doi:10.1007/s00467-011-1847-4. PMID 21559934.
  2. Mueller, R F (1994-06-01). "The Denys-Drash syndrome". Journal of Medical Genetics. 31 (6): 471–477. doi:10.1136/jmg.31.6.471. ISSN 0022-2593. PMC 1049926. PMID 8071974.
  3. Denys P, Malvaux P, Van Den Berghe H, Tanghe W, Proesmans W (1967). "[Association of an anatomo-pathological syndrome of male pseudohermaphroditism, Wilms' tumor, parenchymatous nephropathy and XX/XY mosaicism]". Arch. Fr. Pediatr. (in French). 24 (7): 729–739. PMID 4292870.
  4. Drash A, Sherman F, Hartmann WH, Blizzard RM (1970). "A syndrome of pseudohermaphroditism, Wilms' tumor, hypertension, and degenerative renal disease". J. Pediatr. 76 (4): 585–593. doi:10.1016/S0022-3476(70)80409-7. PMID 4316066.
Wikipedia

External links

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