AN ANALYSIS OF DISEASE SEVERITY BASED ON SMN2 COPY NUMBER IN ADULTS WITH SPINAL MUSCULAR ATROPHY

被引:77
作者
Elsheikh, Bakri [1 ]
Prior, Thomas [1 ]
Zhang, Xiaoli [2 ]
Miller, Robert [3 ]
Kolb, Stephen J. [1 ]
Moore, Dan [3 ]
Bradley, Walter [4 ]
Barohn, Richard [5 ]
Bryan, Wilson [6 ]
Gelinas, Deborah [7 ]
Iannaccone, Susan [8 ]
Leshner, Robert [9 ]
Mendell, Jerry R. [1 ,10 ,11 ]
Mendoza, Michelle [3 ]
Russman, Barry [12 ]
Smith, Stephen [13 ]
King, Wendy [1 ]
Kissel, John T. [1 ]
机构
[1] Ohio State Univ, Dept Neurol, Columbus, OH 43210 USA
[2] Ohio State Univ, Dept Biostat, Columbus, OH 43210 USA
[3] Calif Pacific Med Ctr Res Inst, Forbes Norris ALS Ctr, San Francisco, CA USA
[4] Univ Miami, Dept Neurol, Miller Sch Med, Miami, FL USA
[5] Univ Kansas, Med Ctr, Dept Neurol, Kansas City, KS 66103 USA
[6] Biol Consulting Grp, Rockville, MD USA
[7] Harvard Univ, Nashoba Valley Healthcare Grp, Cambridge, MA 02138 USA
[8] Univ Texas SW Med Ctr Dallas, Dept Neurol, Dallas, TX 75390 USA
[9] Childrens Natl Med Ctr, Dept Neurol, Ctr Genet Med, Washington, DC 20010 USA
[10] Nationwide Childrens Res Inst, Columbus, OH USA
[11] Nationwide Childrens Hosp, Columbus, OH USA
[12] Shriners Hosp Children, Portland, OR 97201 USA
[13] Hennepin Cty Med Ctr, Dept Pathol, Minneapolis, MN 55415 USA
关键词
SMA; SMN2 copy number; SMAFRS; motor neuron; MVIC; PHENOTYPE;
D O I
10.1002/mus.21350
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
To evaluate the effect of SMN2 copy number on disease severity in spinal muscular atrophy (SMA), we stratified 45 adult SMA patients based on SMN2 copy number (3 vs. 4 copies). Patients with 3 copies had an earlier age of onset and lower spinal muscular atrophy functional rating scale (SMAFRS) scores and were more likely to be non-ambulatory. There was, however, no difference between the groups in quantitative muscle strength or pulmonary function testing. Functional scale may be a more discriminating outcome measure for SMA clinical trials. Muscle Nerve 40: 652-656, 2009
引用
收藏
页码:652 / 656
页数:5
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