{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T10:00:11Z","timestamp":1790935211720,"version":"4.1.0"},"reference-count":23,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2011,7,13]],"date-time":"2011-07-13T00:00:00Z","timestamp":1310515200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2011,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    <jats:italic>Introduction:<\/jats:italic>\n                    The purpose of this study was to compare the pattern of hand muscle involvement in Hirayama disease (HD) and amyotrophic lateral sclerosis (ALS).\n                    <jats:italic>Methods:<\/jats:italic>\n                    We reviewed findings of upper limb nerve conduction studies of 46 HD patients and 60 ALS patients. The findings from 54 healthy subjects were used for comparison.\n                    <jats:italic>Results:<\/jats:italic>\n                    In HD, the ulnar compound muscle action potential (CMAP) amplitude was more severely reduced than the median one, and the reverse pattern was observed in ALS. The mean ulnar\/median (U\/M) CMAP amplitude ratio was significantly lower in HD (0.64 \u00b1 0.79) and abnormally higher in ALS (2.15 \u00b1 1.77) compared with normal subjects (0.89 \u00b1 0.23). An abnormally low U\/M CMAP amplitude ratio (&lt;0.6) was encountered in 34 patients with HD and in 1 with ALS. A U\/M CMAP amplitude ratio \u22654.5 or absent median motor response was found only in ALS.\n                    <jats:italic>Conclusion:<\/jats:italic>\n                    Our findings demonstrate different patterns of hand muscle involvement between these two diseases. Muscle Nerve, 2011\n                  <\/jats:p>","DOI":"10.1002\/mus.22028","type":"journal-article","created":{"date-parts":[[2011,1,31]],"date-time":"2011-01-31T09:47:05Z","timestamp":1296467225000},"page":"185-190","source":"Crossref","is-referenced-by-count":35,"title":["Electrophysiological features of hirayama disease"],"prefix":"10.1002","volume":"44","author":[{"given":"Rong\u2010Kuo","family":"Lyu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying\u2010Chih","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yih\u2010Ru","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hung\u2010Chou","family":"Kuo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Long\u2010Sun","family":"Ro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chiung\u2010Mei","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong\u2010Shiu","family":"Chang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,7,13]]},"reference":[{"key":"e_1_2_5_2_2","series-title":"Handbook of clinical neurology","first-page":"107","author":"Hirayama K","year":"1991"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2005.082362"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/mus.20980"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awg117"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0b013e3181aa5364"},{"key":"e_1_2_5_7_2","first-page":"1823","volume-title":"Neurology in clinical practice","author":"Tandan R","year":"1996"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/1097-4598(200010)23:10<1488::AID-MUS4>3.0.CO;2-E"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.13.5.373"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1017\/S0317167100030316"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.1980.00500540075011"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1080\/14660820500396877"},{"key":"e_1_2_5_13_2","doi-asserted-by":"crossref","first-page":"96","DOI":"10.1016\/0022-510X(94)90191-0","article-title":"World Federation of Neurology criteria for the diagnosis of motor neuron disease","volume":"124","author":"El Escorial","year":"1994","journal-title":"J Neurol Sci"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/mus.20949"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.62.1.71"},{"key":"e_1_2_5_16_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/102.3.619"},{"key":"e_1_2_5_17_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-4598(199907)22:7<870::AID-MUS9>3.0.CO;2-O"},{"key":"e_1_2_5_18_2","volume-title":"Electrodiagnosis in diseases of nerve and muscle: principles and practices","author":"Kimura J","year":"2001"},{"key":"e_1_2_5_19_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-4598(200001)23:1<138::AID-MUS22>3.0.CO;2-7"},{"key":"e_1_2_5_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-510X(00)00430-5"},{"key":"e_1_2_5_21_2","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000096009.50213.6C"},{"key":"e_1_2_5_22_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.50.3.285"},{"key":"e_1_2_5_23_2","doi-asserted-by":"publisher","DOI":"10.2169\/internalmedicine.39.283"},{"key":"e_1_2_5_24_2","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/95.1.87"}],"container-title":["Muscle &amp; 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