[Myasthenia gravis and elderly persons. A case study].

Introduction: Myasthenia gravis is an uncommon autoimmune disease which affects all ages. There are late-onset occurrences whose diagnosis is not considered often enough in geriatrics.

Exegesis: We report a case of late-onset myasthenia gravis with a 78-year-old woman who was multi-pathologic and hospitalized for a diplopia check-up and recurrent falls.

[Isoform 4 of apolipoprotein E and Alzheimer disease. Specificity and clinical study].

We studied apolipoprotein E (apoE) phenotype in 113 patients with possible and probable Alzheimer's disease (AD), 49 patients with Parkinson's disease (including 11 patients with dementia) and 23 patients with mixed and vascular dementia. Normal controls were 498 young, healthy blood donors previously recorded. All patients were assayed for blood lipid parameters.