--individual toxigenic fungi, e.g. Amanita phalloides
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Mycotoxinen. : Symposium on Mycotoxins in Human Health the proceedings of a symposium held in Pretoria from 2nd to 4th September 1970 under the auspices of the South African Medical Research Council, with the collaboration of the South African Council for Scientific and Industrial Research. Edited by I.F.H. Purchase
The lipid-rich sheath surrounding AXONS in both the CENTRAL NERVOUS SYSTEMS and PERIPHERAL NERVOUS SYSTEM. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (SCHWANN CELLS in the peripheral and OLIGODENDROGLIA in the central nervous system). Deterioration of the sheath in DEMYELINATING DISEASES is a serious clinical problem
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Myelin : Magnetic resonance of myelination and myelin disorders / Marjo S. van der Knaap, Jaap Valk ; with contributions by F. Barkhof [and others]
An autoimmune disorder mainly affecting young adults and characterized by destruction of myelin in the central nervous system. Pathologic findings include multiple sharply demarcated areas of demyelination throughout the white matter of the central nervous system. Clinical manifestations include visual loss, extra-ocular movement disorders, paresthesias, loss of sensation, weakness, dysarthria, spasticity, ataxia, and bladder dysfunction. The usual pattern is one of recurrent attacks followed by partial recovery (see MULTIPLE SCLEROSIS, RELAPSING-REMITTING), but acute fulminating and chronic progressive forms (see MULTIPLE SCLEROSIS, CHRONIC PROGRESSIVE) also occur. (Adams et al., Principles of Neurology, 6th ed, p903)