Group I Nonreciprocal Inhibition in Primary Restless Legs Syndrome
Identifieur interne : 003843 ( Main/Merge ); précédent : 003842; suivant : 003844Group I Nonreciprocal Inhibition in Primary Restless Legs Syndrome
Auteurs : Cesa Scaglione [Italie] ; Roberto Vetrugno [Italie] ; Giuseppe Plazzi [Italie] ; Giovanni Rizzo [Italie] ; Federica Provini [Italie] ; Pasquale Montagna [Italie] ; Paolo Martinelli [Italie]Source :
- Movement disorders [ 0885-3185 ] ; 2008.
Descripteurs français
- Pascal (Inist)
English descriptors
Abstract
Electrophysiological investigations of restless legs syndrome (RLS) have found spinal circuits impinging on motoneurones. We evaluated the H reflex threshold, latency, the Hmax/Mmax ratio, and the short latency autogenic inhibition in 7 patients with RLS and 10 age-matched controls by testing the excitability changes in soleus H reflex Ib interneuron function. A significant reduction in Ib inhibition at 4 (P = 0.043), 5 (P = 0.007), and 6 ms (P = 0.001) of H reflex conditioning inter-stimulus interval was found in RLS patients. Data support the hypothesis that altered group I nonreciprocal inhibition is implicated in enhancing the spinal circuitry excitability of RLS, and are consistent with the view of an abnormal supraspinal drive to spinal interneurons in RLS.
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Pascal:08-0115902Le document en format XML
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<series><title level="j" type="main">Movement disorders</title>
<title level="j" type="abbreviated">Mov. disord.</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Nervous system diseases</term>
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<term>Restless legs syndrome</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Syndrome des jambes sans repos</term>
<term>Pathologie du système nerveux</term>
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<front><div type="abstract" xml:lang="en">Electrophysiological investigations of restless legs syndrome (RLS) have found spinal circuits impinging on motoneurones. We evaluated the H reflex threshold, latency, the Hmax/Mmax ratio, and the short latency autogenic inhibition in 7 patients with RLS and 10 age-matched controls by testing the excitability changes in soleus H reflex Ib interneuron function. A significant reduction in Ib inhibition at 4 (P = 0.043), 5 (P = 0.007), and 6 ms (P = 0.001) of H reflex conditioning inter-stimulus interval was found in RLS patients. Data support the hypothesis that altered group I nonreciprocal inhibition is implicated in enhancing the spinal circuitry excitability of RLS, and are consistent with the view of an abnormal supraspinal drive to spinal interneurons in RLS.</div>
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<affiliations><list><country><li>Italie</li>
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