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Items: 5

1.

Mitochondrial DNA depletion syndrome 14 (cardioencephalomyopathic type)

Any mitochondrial DNA depletion syndrome in which the cause of the disease is a mutation in the OPA1 gene. [from MONDO]

MedGen UID:
903789
Concept ID:
C4225163
Disease or Syndrome
2.

Optic atrophy with or without deafness, ophthalmoplegia, myopathy, ataxia, and neuropathy

Syndromic optic atrophy, also known as DOA+ syndrome, is a neurologic disorder characterized most commonly by an insidious onset of visual loss and sensorineural hearing loss in childhood with variable presentation of other clinical manifestations including progressive external ophthalmoplegia (PEO), muscle cramps, hyperreflexia, and ataxia. There appears to be a wide range of intermediate phenotypes (Yu-Wai-Man et al., 2010). [from OMIM]

MedGen UID:
478179
Concept ID:
C3276549
Disease or Syndrome
3.

Glaucoma, normal tension, susceptibility to

MedGen UID:
335756
Concept ID:
C1847730
Finding
4.

Autosomal dominant optic atrophy classic form

Autosomal dominant optic atrophy is characterized by an insidious onset of visual impairment in early childhood with moderate to severe loss of visual acuity, temporal optic disc pallor, color vision deficits, and centrocecal scotoma of variable density (Votruba et al., 1998). Some patients with mutations in the OPA1 gene may also develop extraocular neurologic features, such as deafness, progressive external ophthalmoplegia, muscle cramps, hyperreflexia, and ataxia; see 125250. There appears to be a wide range of intermediate phenotypes (Yu-Wai-Man et al., 2010). Yu-Wai-Man et al. (2009) provided a detailed review of autosomal dominant optic atrophy and Leber hereditary optic neuropathy (LHON; 535000), with emphasis on the selective vulnerability of retinal ganglion cells to mitochondrial dysfunction in both disorders. Genetic Heterogeneity of Optic Atrophy Also see optic atrophy-2 (OPA2; 311050), mapped to chromosome Xp11.4-p11.21; OPA3 (165300), caused by mutation in the OPA3 gene (606580) on chromosome 19q13; OPA4 (605293), mapped to chromosome 18q12.2-q12.3; OPA5 (610708), caused by mutation in the DNM1L gene (603850) on chromosome 12p11; OPA6 (258500), mapped to chromosome 8q21-q22; OPA7 (612989), caused by mutation in the TMEM126A gene (612988) on chromosome 11q14; OPA8 (616648), mapped to chromosome 16q21-q22; OPA9 (616289), caused by mutation in the ACO2 gene (100850) on chromosome 22q13; OPA10 (616732), caused by mutation in the RTN4IP1 gene (610502) on chromosome 6q21; OPA11 (617302), caused by mutation in the YME1L1 gene (607472) on chromosome 10p12; OPA12 (618977), caused by mutation in the AFG3L2 gene (604581) on chromosome 18p11; OPA13 (165510), caused by mutation in the SSBP1 gene (600439) on chromosome 7q34; OPA14 (620550), caused by mutation in the MIEF1 gene (615497) on chromosome 22q13; OPA15 (620583), caused by mutation in the MCAT gene (614479) on chromosome 22q13; and OPA16 (620629), caused by mutation in the MECR gene (608205) on chromosome 1p35. [from OMIM]

MedGen UID:
137902
Concept ID:
C0338508
Disease or Syndrome
5.

Abortive cerebellar ataxia

'Behr syndrome' is a clinical term that refers to the constellation of early-onset optic atrophy accompanied by neurologic features, including ataxia, pyramidal signs, spasticity, and mental retardation (Behr, 1909; Thomas et al., 1984). Patients with mutations in genes other than OPA1 can present with clinical features reminiscent of Behr syndrome. Mutations in one of these genes, OPA3 (606580), result in type III 3-methylglutaconic aciduria (MGCA3; 258501). Lerman-Sagie (1995) noted that the abnormal urinary pattern in MGCA3 may not be picked up by routine organic acid analysis, suggesting that early reports of Behr syndrome with normal metabolic features may actually have been 3-methylglutaconic aciduria type III. [from OMIM]

MedGen UID:
66358
Concept ID:
C0221061
Disease or Syndrome
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