{"id":23296,"date":"2019-12-03T08:50:04","date_gmt":"2019-12-03T08:50:04","guid":{"rendered":"https:\/\/wames.org.uk\/cms-english\/?p=23296"},"modified":"2019-12-03T08:50:04","modified_gmt":"2019-12-03T08:50:04","slug":"understanding-neuromuscular-disorders-in-cfs","status":"publish","type":"post","link":"https:\/\/wames.org.uk\/cms-english\/understanding-neuromuscular-disorders-in-cfs\/","title":{"rendered":"Understanding neuromuscular disorders in CFS"},"content":{"rendered":"<h3><a href=\"https:\/\/f1000research.com\/articles\/8-2020\" target=\"_blank\" rel=\"noopener noreferrer\">Understanding neuromuscular disorders in chronic fatigue syndrome,<\/a> by Yves Jammes, Fr\u00e9d\u00e9rique Retornaz <span style=\"text-decoration: underline;\">in<\/span> <em>F1000Research<\/em> 2019, 8:2020 (https:\/\/doi.org\/10.12688\/f1000research.18660.1)<\/h3>\n<p>&nbsp;<\/p>\n<h3><strong>Review abstract:<\/strong><\/h3>\n<p><a href=\"https:\/\/wames.org.uk\/cms-english\/understanding-neuromuscular-disorders-in-cfs\/wooden-figure-pain\/\" rel=\"attachment wp-att-23322\"><img data-recalc-dims=\"1\" decoding=\"async\" class=\"alignright size-medium wp-image-23322 lazyload\" data-src=\"https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=200%2C300&#038;ssl=1\" alt=\"\" width=\"200\" height=\"300\" data-srcset=\"https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=200%2C300&amp;ssl=1 200w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=683%2C1024&amp;ssl=1 683w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=100%2C150&amp;ssl=1 100w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=768%2C1152&amp;ssl=1 768w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?resize=1024%2C1536&amp;ssl=1 1024w, https:\/\/i0.wp.com\/wames.org.uk\/cms-english\/wp-content\/uploads\/2019\/12\/wooden-figure-pain.jpg?w=853&amp;ssl=1 853w\" data-sizes=\"(max-width: 200px) 100vw, 200px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 200px; --smush-placeholder-aspect-ratio: 200\/300;\" \/><\/a>Muscle failure has been demonstrated in patients with myalgic encephalomyelitis\/chronic fatigue syndrome (ME\/CFS).<\/p>\n<p>Neurophysiological tools demonstrate the existence of both central and peripheral fatigue in these patients. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Central_nervous_system_fatigue\" target=\"_blank\" rel=\"noopener noreferrer\">Central fatigue<\/a> is deduced from the reduced amplitude of myopotentials evoked by transcranial magnetic stimulation of the motor cortex as well as by the muscle response to interpolated twitches during sustained fatiguing efforts.<\/p>\n<p>An impaired muscle membrane conduction velocity assessed by the reduced amplitude and lengthened duration of myopotentials evoked by direct muscle stimulation is the defining feature of <a href=\"https:\/\/www.myosynthesis.com\/cns-peripheral-fatigue\" target=\"_blank\" rel=\"noopener noreferrer\">peripheral fatigue<\/a>.<\/p>\n<p>Some patients with ME\/CFS show an increased <a href=\"https:\/\/www.healthline.com\/health\/oxidative-stress\" target=\"_blank\" rel=\"noopener noreferrer\">oxidative stress<\/a> response to exercise. The formation of lipid hydroperoxides in the sarcolemma, which alters ionic fluxes, could explain the reduction of muscle membrane excitability and potassium outflow often measured in these patients.<\/p>\n<p>In patients with ME\/CFS, the formation of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Heat_shock_protein\" target=\"_blank\" rel=\"noopener noreferrer\">heat shock proteins<\/a> (HSPs) is also reduced. Because HSPs protect muscle cells against the deleterious effects of reactive oxygen species, the lack of their production could explain the augmented oxidative stress and the consecutive alterations of myopotentials which could open a way for future treatment of ME\/CFS.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Understanding neuromuscular disorders in chronic fatigue syndrome, by Yves Jammes, Fr\u00e9d\u00e9rique Retornaz in F1000Research 2019, 8:2020 (https:\/\/doi.org\/10.12688\/f1000research.18660.1) &nbsp; Review abstract: Muscle failure has been demonstrated in patients with myalgic encephalomyelitis\/chronic fatigue syndrome (ME\/CFS). Neurophysiological tools demonstrate the existence of both &hellip; <a href=\"https:\/\/wames.org.uk\/cms-english\/understanding-neuromuscular-disorders-in-cfs\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[5412,5407,5410,5408,5409,306,5411,3091],"class_list":["post-23296","post","type-post","status-publish","format-standard","hentry","category-news","tag-central-fatigue","tag-frederique-retornaz","tag-heat-shock-proteins","tag-neuromuscular-disorder","tag-neurophysiology","tag-oxidative-stress","tag-peripheral-fatigue","tag-yves-jammes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5qkYK-63K","_links":{"self":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/comments?post=23296"}],"version-history":[{"count":3,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23296\/revisions"}],"predecessor-version":[{"id":23324,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/posts\/23296\/revisions\/23324"}],"wp:attachment":[{"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/media?parent=23296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/categories?post=23296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wames.org.uk\/cms-english\/wp-json\/wp\/v2\/tags?post=23296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}