amyotrophic sclerosis

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• Sclerosis — or sclerotization is a hardening of tissue and other anatomical featuresIn medicine*Amyotrophic lateral sclerosis sometimes known as Lou Gehrig s disease, a progressive, incurable, usually fatal disease of motor neurons. Scientist Stephen Hawking …   Wikipedia

• amyotrophic lateral sclerosis — n a rare fatal progressive degenerative disease that affects pyramidal motor neurons, usu. begins in middle age, and is characterized esp. by increasing and spreading muscular weakness abbr. ALS called also Lou Gehrig s disease * * * a motor… …   Medical dictionary

• amyotrophic lateral sclerosis — by 1881, from French, first word from Gk. a , privative prefix, + mys, myos muscle (see MUSCLE (Cf. muscle)) + trophikos feeding, from trophe nourishment (see TROPHY (Cf. trophy)). Often known in U.S. as Lou Gehrig s disease, after the New York… …   Etymology dictionary

• amyotrophic lateral sclerosis — [ā΄mī΄ō träf′ik, ā΄mī΄ōtrō′fik] n. [< ModL amyotrophia, muscular atrophy < Gr a , not + myos (see MYO ) + trophia, TROPHY + IC] a degenerative disease of the nerve cells that control muscular movement; Lou Gehrig s disease …   English World dictionary

• Amyotrophic lateral sclerosis — This article is about progressive Motor Neuron Disease (MND) affecting both the upper motor neurons and lower motor neurons. For MND affecting either but not necessarily both, see Motor neurone disease. ALS redirects here. For other uses, see ALS …   Wikipedia

• sclerosis — 1. SYN: induration (2). 2. In neuropathy, induration of nervous and other structures by a hyperplasia of the interstitial fibrous or glial connective tissue. [G. sklerosis, hardness] Alzheimer s …   Medical dictionary

• Amyotrophic lateral sclerosis (ALS) — A classic motor neuron disease. Motor neuron diseases are progressive chronic diseases of the nerves that come from the spinal cord responsible for supplying electrical stimulation to the muscles. This stimulation is necessary for the movement of …   Medical dictionary

• sclerosis — sclerosal, adj. /skli roh sis/, n., pl. scleroses / seez/. 1. Pathol. a hardening or induration of a tissue or part, or an increase of connective tissue or the like at the expense of more active tissue. 2. Bot. a hardening of a tissue or cell… …   Universalium

• sclerosis — n. hardening of tissue, usually due to scarring (fibrosis) after inflammation or to ageing. It can affect the lateral columns of the spinal cord and the medulla of the brain (amyotrophic lateral sclerosis or Lou Gehrig s disease), causing… …   The new mediacal dictionary

• amyotrophic lateral sclerosis–parkinsonism–dementia complex — an autosomal dominant disorder caused by mutation in the TRPM7 gene (locus: 15q21), which encodes a protein that functions as an ion channel and a kinase; it occurs among the Chamorro population of Guam and is characterized by gradually… …   Medical dictionary

• amyotrophic lateral sclerosis — noun thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs • Syn: ↑ALS, ↑Lou Gehrig s disease • Hypernyms: ↑nervous disorder,… …   Useful english dictionary