期刊
NEUROLOGY
卷 82, 期 6, 页码 482-490出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/WNL.0000000000000102
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [25129708, 221S0002]
- MEXT
- Japan Society for the Promotion of Science (JSPS) [24249060, 23791201]
- Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-STEP) Exploratory Research, Japan Science and Technology Agency (JSP)
- Ministry of Health, Labor and Welfare of Japan [21210301, KB220001]
- Japan Foundation for Pediatric Research
- Japan Epilepsy Research Foundation
- Kaibara Morikazu Medical Science Promotion Foundation
- Joint Usage/Research Program of Medical Research Institute
- Tokyo Medical and Dental University
- Mitsubishi Foundation
- Takeda Scientific Foundation
- Recommended Projects of Fukuoka University [117016]
- [21B-5]
- [24-7]
- Grants-in-Aid for Scientific Research [221S0002, 25670481, 22129002, 23791201] Funding Source: KAKEN
Objective:Clinical severity of alternating hemiplegia of childhood (AHC) is extremely variable. To investigate genotype-phenotype correlations in AHC, we analyzed the clinical information and ATP1A3 mutations in patients with AHC.Methods:Thirty-five Japanese patients who were clinically diagnosed with AHC participated in this study. ATP1A3 mutations were analyzed using Sanger sequencing. Detailed clinical information was collected from family members of patients with AHC and clinicians responsible for their care.Results:Gene analysis revealed 33 patients with de novo heterozygous missense mutations of ATP1A3: Glu815Lys in 12 cases (36%), Asp801Asn in 10 cases (30%), and other missense mutations in 11 cases. Clinical information was compared among the Glu815Lys, Asp801Asn, and other mutation groups. Statistical analysis revealed significant differences in the history of neonatal onset, gross motor level, status epilepticus, and respiratory paralysis in the Glu815Lys group compared with the other groups. In addition, 8 patients who did not receive flunarizine had severe motor deteriorations.Conclusions:The Glu815Lys genotype appears to be associated with the most severe AHC phenotype. Although AHC is not generally seen as a progressive disorder, it should be considered a disorder that deteriorates abruptly or in a stepwise fashion, particularly in patients with the Glu815Lys mutation.
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