MACHADO JOSEPH AZOREAN DISEASE
\mat͡ʃˈɑːdə͡ʊ d͡ʒˈə͡ʊsəf ˈazɔːɹˌi͡ən dɪzˈiːz], \matʃˈɑːdəʊ dʒˈəʊsəf ˈazɔːɹˌiən dɪzˈiːz], \m_a_tʃ_ˈɑː_d_əʊ dʒ_ˈəʊ_s_ə_f ˈa_z_ɔː_ɹ_ˌiə_n d_ɪ_z_ˈiː_z]\
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A dominantly-inherited ataxia first described in people of Azorean and Portuguese descent, and subsequently identified in Brazil, Japan, China, and Australia. This disorder is classified as one of the SPINOCEREBELLAR ATAXIAS (Type 3) and has been associated with a mutation of the MJD1 gene on chromosome 14. Clinical features include progressive ataxia, dysarthria, postural instability, nystagmus, eyelid retraction, and facial fasciculations. Dystonia is prominent in younger patients (referred to as Type I Machado-Joseph Disease). Type II features ataxia and ocular signs; Type III features muscle atrophy and a sensorimotor neuropathy; and Type IV features extrapyramidal signs combined with a sensorimotor neuropathy. (From Clin Neurosci 1995;3 (1):17-22; Ann Neurol 1998 Mar;43 (3):288-96)
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Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.