A 65-year-old man with Tangier disease (analphalipoproteinemia) had had a progressive sensorimotor distal neuropathy with sensory ataxia for 1 year. Muscle biopsy demonstrated excess lipid vacuoles on histochemical and electron-microscopic techniques. Sural nerve biopsy showed a marked loss of large
BACKGROUND
Tangier disease (TD) is a rare autosomal recessive disorder, resulting from mutations in the ATP binding cassette transporter (ABCA1) gene. The deficiency of ABCA1 protein impairs high density lipoprotein (HDL) synthesis and cholesterol esters trafficking.
METHODS
A 58 year-old female,
We report a Canadian kindred with a novel mutation in the apolipoprotein (apo) A-I gene causing analphalipoproteinemia. The 34-yr-old proband, product of a consanguineous marriage, had bilateral retinopathy, bilateral cataracts, spinocerebellar ataxia, and tendon xanthomata. High density lipoprotein
Objectives: Generally, neuropathies of peripheral nerves are a frequent condition (prevalence 2-3%) and most frequently due to alcoholism, diabetes, renal insufficiency, malignancy, toxins, or drugs. However, the vast majority of
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