{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T10:50:00Z","timestamp":1761821400821,"version":"3.37.3"},"reference-count":13,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2017,10,24]],"date-time":"2017-10-24T00:00:00Z","timestamp":1508803200000},"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":[[2018,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Spinal and bulbar muscular atrophy (SBMA) is caused by the expansion of a CAG repeat in the androgen receptor gene. The relationship between the CAG repeat size and electrophysiological findings is not completely understood.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We retrospectively analyzed 62 SBMA patients to assess the correlation between their CAG repeat size and electrophysiological findings.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In multiple regression analysis including age at examination and disease duration, we identified a negative correlation between the CAG repeat size and the compound muscle action potential (CMAP) amplitude. No significant correlation was found between the CAG repeat size and sensory nerve action potential (SNAP) amplitude.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>Contrary to previous reports of motor\u2010 and sensory\u2010dominant phenotypes correlating with CAG repeat sizes, the CAG repeat size was negatively correlated only with CMAP amplitude, and not with SNAP amplitude. <jats:italic>Muscle Nerve<\/jats:italic> <jats:bold>57<\/jats:bold>: 683\u2013686, 2018<\/jats:p><\/jats:sec>","DOI":"10.1002\/mus.25977","type":"journal-article","created":{"date-parts":[[2017,10,3]],"date-time":"2017-10-03T15:32:40Z","timestamp":1507044760000},"page":"683-686","source":"Crossref","is-referenced-by-count":11,"title":["Correlation between the CAG repeat size and electrophysiological findings in patients with spinal and bulbar muscular atrophy"],"prefix":"10.1002","volume":"57","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0264-4531","authenticated-orcid":false,"given":"Hyunjin","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Neurology, Asan Medical Center University of Ulsan College of Medicine 88, Olympic\u2010ro 43\u2010gil Songpa\u2010gu Seoul 05505 Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Young\u2010Min","family":"Lim","sequence":"additional","affiliation":[{"name":"Department of Neurology, Asan Medical Center University of Ulsan College of Medicine 88, Olympic\u2010ro 43\u2010gil Songpa\u2010gu Seoul 05505 Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eun\u2010Jae","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Neurology, Asan Medical Center University of Ulsan College of Medicine 88, Olympic\u2010ro 43\u2010gil Songpa\u2010gu Seoul 05505 Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yeo Jin","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Neurology, Asan Medical Center University of Ulsan College of Medicine 88, Olympic\u2010ro 43\u2010gil Songpa\u2010gu Seoul 05505 Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kwang\u2010Kuk","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurology, Asan Medical Center University of Ulsan College of Medicine 88, Olympic\u2010ro 43\u2010gil Songpa\u2010gu Seoul 05505 Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,10,24]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/352077a0"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.18.7.671"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awp258"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.45.11.1012"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/112.1.209"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410320517"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awm289"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0122279"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.94.7.3320"},{"key":"e_1_2_7_11_1","first-page":"388","article-title":"Relation of age to amplitude of evoked antidromic sensory nerve potentials: a supplemental report","volume":"53","author":"LaFratta CW","year":"1972","journal-title":"Arch Phys Med Rehabil"},{"volume-title":"Electromyography and Neuromuscular disorders","year":"2005","author":"Preston DC","key":"e_1_2_7_12_1"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awl096"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awh381"}],"container-title":["Muscle &amp; 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