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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Expression of N-Methyl-D-Aspartate Receptor Subunits in the Bovine Ovum: Ova as a Potential Source of Autoantigens Causing Anti-NMDAR Encephalitis
|
|---|---|
| Published in |
Tohoku Journal of Experimental Medicine, January 2015
|
| DOI | 10.1620/tjem.235.223 |
| Pubmed ID | |
| Authors |
Naoko Tachibana, Michiaki Kinoshita, Fuyuki Kametani, Keiko Tanaka, Yumi Une, Yotaro Komatsu, Yukihiro Kobayashi, Shu-ichi Ikeda |
| Abstract |
Autoimmune synaptic encephalitis is characterized by the presence of autoantibodies against synaptic constituent receptors and manifests as neurological and psychiatric disorders. Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is such an autoimmune disorder that predominantly affects young women. It is associated with antibodies against the extracellular region of the NR1 subunit of postsynaptic NMDAR. Each NMDAR functions as a heterotetrameric complex that is composed of four subunits, including NR1 and NR2A, NR2B, or NR2C. Importantly, ovarian teratoma is a typical complication of anti-NMDAR encephalitis in female patients and may contain antigenic neural tissue; however, antigenic sites remain unknown in female patients without ovarian teratoma. The purpose of this study was to investigate the expression of NMDARs in the ovum. We detected NR1 and NR2B immunoreactivity in protein fractions extracted from the bovine ovary and ova by SDS-polyacrylamide gel electrophoresis and immunoblotting analysis. Immunoprecipitates digested with trypsin were analyzed by reverse phase liquid chromatography coupled to tandem mass spectrometry. We obtained the following five peptides: SPFGRFK and KNLQDR, which are consistent with partial sequences of human NR1, and GVEDALVSLK, QPTVAGAPK, and NEVMSSK, which correspond to those of NR2A, NR2B and NR2C, respectively. Immunocytochemical analysis revealed that the bovine ovum was stained with the immunoglobulin G purified from the serum of a patient with anti-NMDAR encephalitis. Taken together, we propose that the normal ovum expresses NMDARs that have strong affinity for the disease-specific IgG. The presence of NMDARs in ova may help explain why young females without ovarian teratomas are also affected by anti-NMDAR encephalitis. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 28 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Mexico | 1 | 4% |
| Unknown | 27 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 5 | 18% |
| Student > Ph. D. Student | 4 | 14% |
| Other | 3 | 11% |
| Student > Master | 3 | 11% |
| Professor | 3 | 11% |
| Other | 5 | 18% |
| Unknown | 5 | 18% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 12 | 43% |
| Neuroscience | 3 | 11% |
| Agricultural and Biological Sciences | 2 | 7% |
| Psychology | 1 | 4% |
| Unspecified | 1 | 4% |
| Other | 2 | 7% |
| Unknown | 7 | 25% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 March 2015.
All research outputs
#22,759,802
of 25,374,917 outputs
Outputs from Tohoku Journal of Experimental Medicine
#951
of 1,104 outputs
Outputs of similar age
#306,548
of 359,530 outputs
Outputs of similar age from Tohoku Journal of Experimental Medicine
#52
of 70 outputs
Altmetric has tracked 25,374,917 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,104 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.4. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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