Marinesco–Sjögren syndrome

Marinesco–Sjögren syndrome
Marinescu-Sjögren syndrome
Classification and external resources
OMIM 248800
DiseasesDB 31430
MeSH D013132

Marinesco-Sjögren syndrome (MSS) is a rare autosomal recessive disorder.

Contents

Presentation

The syndrome causes cerebellar ataxia (balance and coordination problems), mental retardation, congenital cataracts in early childhood, muscle weakness, inability to chew food, thin brittle fingernails, and sparse hair.[1]:578.

Small stature, mild to severe mental retardation and dysarthria (slow, imprecise speech) are usually present.

Various skeletal abnormalities (e.g., curvature of the spine) and hypergonadotropic hypogonadism often occur.

Muscle weakness is progressive, but life expectancy is near normal.

Diagnosis

Diagnosis of MSS is based on clinical symptoms, magnetic resonance imaging (MRI) of the brain (cerebellar atrophy particularly involving the cerebellar vermis), and muscle biopsy.

It can be associated with mutations of the SIL1 gene,[2][3] and a mutation can be found in about 50% of cases.

Differential diagnosis includes Congenital Cataracts Facial Dysmorphism Neuropathy (CCFDN), Marinesco-Sjögren like syndrome with chylomicronemia, carbohydrate deficient glycoprotein syndromes, Lowe syndrome, and mitochondrial disease.

Treatment

Treatment for MSS is symptomatic and supportive including physical and occupational therapy, speech therapy, and special education. Cataracts must be removed when vision is impaired, generally in the first decade of life. Hormone replacement therapy is needed if hypogonadism is present.

Eponym

It is named for Gheorghe Marinescu and Torsten Sjögren.[4]

See also

References

  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  2. ^ Senderek J, et al. (2005). "Mutations in SIL1 cause Marinesco-Sjögren syndrome, a cerebellar ataxia with cataract and myopathy". Nat Genet 37 (12): 1312–4. doi:10.1038/ng1678. PMID 16282977. 
  3. ^ Anttonen A, et al. (2005). "The gene disrupted in Marinesco-Sjögren syndrome encodes SIL1, an HSPA5 cochaperone". Nat Genet 37 (12): 1309–11. doi:10.1038/ng1677. PMID 16282978. 
  4. ^ synd/1676 at Who Named It?

External links

v · d · eDeficiencies of intracellular signaling peptides and proteins
GTP-binding protein regulators
GTPase-activating protein
Marinesco–Sjögren syndrome · Aarskog–Scott syndrome · Juvenile primary lateral sclerosis · X-Linked mental retardation 1
G protein
MAP kinase
Other kinase/phosphatase
RPS6KA3 (Coffin-Lowry syndrome) · CHEK2 (Li-Fraumeni syndrome 2) · IKBKG (Incontinentia pigmenti) · STK11 (Peutz–Jeghers syndrome) · DMPK (Myotonic dystrophy 1) · ATR (Seckel syndrome 1) · GRK1 (Oguchi disease 2) · WNK4/WNK1 (Pseudohypoaldosteronism 2)
PTEN (Bannayan–Riley–Ruvalcaba syndrome, Lhermitte–Duclos disease, Cowden syndrome, Proteus-like syndrome) · MTM1 (X-linked myotubular myopathy) · PTPN11 (Noonan syndrome 1, LEOPARD syndrome, Metachondromatosis)
Signal transducing adaptor proteins
Other
NF2 (Neurofibromatosis type II) · NOTCH3 (CADASIL) · PRKAR1A (Carney complex) · PRKAG2 (Wolff–Parkinson–White syndrome) · PRKCSH (PRKCSH Polycystic liver disease) · XIAP (XIAP2)
see also intracellular signaling peptides and proteins
B structural (perx, skel, cili, mito, nucl, sclr) · DNA/RNA/protein synthesis (drep, trfc, tscr, tltn) · membrane (icha, slcr, atpa, abct, othr) · transduction (iter, csrc, itra), trfk
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