Behr syndrome

Behr syndrome
Other namesOptic atrophy in early childhood, associated with ataxia, spasticity, mental retardation, and posterior column sensory loss
Behr syndrome has an autosomal recessive pattern of inheritance.

Behr syndrome is characterized by the association of early-onset optic atrophy with spinocerebellar degeneration resulting in ataxia, pyramidal signs, peripheral neuropathy and developmental delay.[1][2]

Although it is an autosomal recessive disorder, heterozygotes may still manifest much attenuated symptoms.[3] Autosomal dominant inheritance also being reported in a family.[4] Recently a variant of OPA1 mutation with phenotypic presentation like Behr syndrome is also described.[5] Some reported cases have been found to carry mutations in the OPA1, OPA3 or C12ORF65 genes which are known causes of pure optic atrophy or optic atrophy complicated by movement disorder.[6]

  1. ^ synd/3048 at Who Named It?
  2. ^ Behr C (1909). "Die komplizierte, hereditär-familiäre Optikusatrophie des Kindesalters: ein bisher nicht beschriebener Symptomkompleks". Klinische Monatsblätter für Augenheilkunde. 47: 138–60.
  3. ^ Van Bogaert, L (1942). "Premiere observation anatomo-clinique de l'atrophie optique heredofamiliale compliquee de Behr". Bull. Acad. Roy. Med. Belg.
  4. ^ Felicio, Andre C.; Godeiro-Junior, Clecio; Alberto, Lucianna G.; Pinto, Aline P. M.; Sallum, Juliana M. F.; Teive, Helio G.; Barsottini, Orlando G. P. (2008-01-01). "Familial Behr syndrome-like phenotype with autosomal dominant inheritance". Parkinsonism & Related Disorders. 14 (4): 370–372. doi:10.1016/j.parkreldis.2007.08.008. ISSN 1353-8020. PMID 17977780.
  5. ^ Marelli, Cecilia; Amati-Bonneau, Patrizia; Reynier, Pascal; Layet, Valérie; Layet, Antoine; Stevanin, Giovanni; Brissaud, Etienne; Bonneau, Dominique; Durr, Alexandra (2011-04-01). "Heterozygous OPA1 mutations in Behr syndrome". Brain. 134 (Pt 4): e169, author reply e170. doi:10.1093/brain/awq306. ISSN 1460-2156. PMID 21112924.
  6. ^ Kleffner, Ilka; Wessling, Caroline; Gess, Burkhard; Korsukewitz, Catharina; Allkemper, Thomas; Schirmacher, Anja; Young, Peter; Senderek, Jan; Husstedt, Ingo W. (2015-10-15). "Behr syndrome with homozygous C19ORF12 mutation". Journal of the Neurological Sciences. 357 (1–2): 115–118. doi:10.1016/j.jns.2015.07.009. ISSN 1878-5883. PMID 26187298. S2CID 30246467.