Neuromyelitis Optica Immunoglobulin G in Chinese Patients Detected by Immunofluorescence Assay on a Monkey Brain Substrate
Neuromyelitis Optica Immunoglobulin G in Chinese Patients Detected by Immunofluorescence Assay on a Monkey Brain Substrate
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通过猴脑基质免疫荧光检测检测中国患者视神经脊髓炎免疫球蛋白 G
DOI:
10.1159/000326779
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发表时间:
2011-11
影响因子:
2.4
通讯作者:
胡学强
中科院分区:
文献类型:
--
作者:
胡学强
Background: Serum neuromyelitis optica immunoglobulin G (NMO-IgG) is used as a biomarker to differentiate between neuromyelitis optica (NMO) and multiple sclerosis (MS). However, the original assay is expensive and complex and shows low sensitivity. Here, we investigated the potential of NMO-IgG detection using an indirect immunofluorescence (IIF) assay on monkey brains. Methods: NMO-IgG seroprevalence was determined in 168 samples by an IIF assay on a monkey brain substrate. The data were compared with those from a standard mouse brain IIF assay using McNemar and kappa tests. Results: Thirty-one of 50 (62%) NMO patients, 7 of 18 (38.9%) longitudinally extensive transverse myelitis patients, 6 of 57 (10.5%) MS patients, and 5 of 10 (50%) optic neuritis patients were seropositive for NMO-IgG. None of the acute partial transverse myelitis patients (n = 3) or healthy controls (n = 20) was positive. Thus, the sensitivity of the test was 62% for the patients with clinically definite NMO. The specificity was 89.5%, considering the 57 MS patients as the control group. The modified IIF assay on monkey brains and the standard IIF assay based on mouse brains were not significantly different (McNemar test; p = 1.000). The two assays were concordant in 39 seropositive samples and 100 seronegative samples (kappa test; kappa = 0.592, p < 0.0001). Conclusions: Although the modified IIF monkey brain assay was no better than the standard mouse brain IIF assay, we affirmed that NMO-IgG is a sensitive and specific biomarker to differentiate between NMO and MS.
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影响因子:
5.8
作者:
Fazio, R.;Malosio, M. L.;Martino, G.
通讯作者:
Martino, G.
DOI:
--
发表时间:
2005
期刊:
--
影响因子:
--
作者:
通讯作者:
--
影响因子:
14.5
作者:
Takahashi, Toshiyuki;Fujihara, Kazuo;Itoyama, Yasuto
通讯作者:
Itoyama, Yasuto
影响因子:
9.9
作者:
Wingerchuk, D. M.;Lennon, V. A.;Weinshenker, B. G.
通讯作者:
Weinshenker, B. G.
影响因子:
14.5
作者:
Matsuoka, Takeshi;Matsushita, Takuya;Kira, Jun-ichi
通讯作者:
Kira, Jun-ichi