POSITIONAL VERTIGO
\pəzˈɪʃənə͡l vˈɜːtɪɡˌə͡ʊ], \pəzˈɪʃənəl vˈɜːtɪɡˌəʊ], \p_ə_z_ˈɪ_ʃ_ə_n_əl v_ˈɜː_t_ɪ_ɡ_ˌəʊ]\
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An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear, vestibular nerve, brainstem, and cerebral cortex. Lesions in the temporal and parietal lobes may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)
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Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.