Sjögren–Larsson syndrome

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Not to be confused with Sjögren's syndrome.
Sjögren-Larsson syndrome
Classification and external resources
ICD-10 Q87.1 (ILDS Q87.136)
ICD-9 757.1 (CDC/BPA 757.120)
OMIM 270200
DiseasesDB 30051
eMedicine derm/706
MeSH D016111

Sjögren–Larsson syndrome (SLS) is an autosomal recessive form of ichthyosis apparent at birth.[1]:485[2]:564[3] Sjögren–Larsson syndrome is a rare autosomal, recessive, neurocutaneous disease. This disease can be identified by a triad of medical disorders. The first is ichthyosis, which is a buildup of skin to form a scale-like covering that causes dry skin and other problems. The second identifier is spastic paraplegia which is characterized by leg spasms. The final identifier is mental retardation. The gene of SLS is found on chromosome 17. In order for a child to receive SLS both parents must be carriers of the SLS gene. If they are carriers their child has a ¼ chance of getting the disease. In 1957 Sjogren and Larsson proposed that the Swedes with the disease all descended from a common ancestor 600 years ago. Today only 1% of Northern Sweden's population has this disease.

Causes[edit]

It is associated with a deficiency of the enzyme "fatty aldehyde dehydrogenase". At least 11 distinct mutations have been identified.[4]

Genetics[edit]

This condition is inherited in an autosomal recessive pattern.

Pathological features[edit]

  • Dry and scaly skin similar to all other ichtyosiforms (types of ichthyosis).
  • Neurological problems - this can often cause mild paralysis in the legs
  • Mild to moderate intellectual disability.

Eponym[edit]

It was characterized by Torsten Sjögren and Tage Konrad Leopold Larsson (1905–1998), a Swedish medical statistician.[5][6]

It should not be confused with Sjögren's syndrome, which is a distinct condition named after a different person (Henrik Sjögren).

See also[edit]

References[edit]

  1. ^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.
  2. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  3. ^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0. 
  4. ^ Sillén A, Anton-Lamprecht I, Braun-Quentin C, et al. (1998). "Spectrum of mutations and sequence variants in the FALDH gene in patients with Sjögren-Larsson syndrome". Hum. Mutat. 12 (6): 377–84. doi:10.1002/(SICI)1098-1004(1998)12:6<377::AID-HUMU3>3.0.CO;2-I. PMID 9829906. 
  5. ^ synd/1678 at Who Named It?
  6. ^ SJOGREN T, LARSSON T (1957). "Oligophrenia in combination with congenital ichthyosis and spastic disorders; a clinical and genetic study". Acta Psychiatr Neurol Scand Suppl 113: 1–112. PMID 13457946. 

Bibliography[edit]

  • Sjögren, K. G. Torsten/Larsson, Tage K.: Oligophrenie in combination with congenital ichtyosis and spastic disorders. A clinical and genetic study, in: Acta psychiatrica et neurologica scandinavica, Copenhagen, 1957, 32, supplement 113, p. 9-105.