ID | 61024 |
FullText URL | |
Author |
Hyodo, Yuki
Department of Child Neurology, Okayama University Hospital
Hasegawa, Kosei
Department of Pediatrics, Okayama University Hospital
ORCID
Kaken ID
publons
researchmap
Oboshi, Taikan
Department of Pediatric Neurology, Osaka Women’s and Children’s Hospital
Imai, Katsumi
Department of Pediatrics, NHO Shizuoka Institute of Epilepsy and Neurological Disorders
Ishihara, Naoko
Department of Pediatrics, Fujita Health University School of Medicine
Dowa, Yuri
Department of Neurology, Gunma Children’s Medical Center
Koike, Takayoshi
Department of Pediatrics, NHO Shizuoka Institute of Epilepsy and Neurological Disorders
Yamamoto, Toshiyuki
Institute of Clinical Genomics, Tokyo Women’s Medical University
Shibasaki, Jun
Department of Neonatology, Kanagawa Children’s Medical Center
Shimbo, Hiroko
Clinical Institute, Kanagawa Children’s Medical Center
Fukuyama, Tetsuhiro
Department of Pediatrics, Shinshu University
Takano, Kyoko
Center for Medical Genetics, Shinshu University Hospital
Shiraku, Hiroshi
Department of Pediatrics, JA Toride Medical Center
Takeshita, Saoko
Department of Pediatrics, Yokohama City University Medical Center
Okanishi, Tohru
Department of Child Neurology, Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital
Baba, Shimpei
Department of Child Neurology, Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital
Kubota, Masaya
Division of Neurology, National Center for Child Health and Development
Hamano, Shin-ichiro
Division of Neurology, Saitama Children’s Medical Center
Kobayashi, Katsuhiro
Department of Child Neurology, Okayama University Hospital
Kaken ID
publons
researchmap
|
Abstract | Background
We aimed to demonstrate the biochemical characteristics of vitamin B6–dependent epilepsy, with a particular focus on pyridoxal 5′-phosphate and pyridoxal in the cerebrospinal fluid.
Methods
Using our laboratory database, we identified patients with vitamin B6–dependent epilepsy and extracted their data on the concentrations of pyridoxal 5′-phosphate, pyridoxal, pipecolic acid, α-aminoadipic semialdehyde, and monoamine neurotransmitters. We compared the biochemical characteristics of these patients with those of other epilepsy patients with low pyridoxal 5′-phosphate concentrations.
Results
We identified seven patients with pyridoxine-dependent epilepsy caused by an ALDH7A1 gene abnormality, two patients with pyridoxal 5′-phosphate homeostasis protein deficiency, and 28 patients with other epilepsies with low cerebrospinal fluid pyridoxal 5′-phosphate concentrations. Cerebrospinal fluid pyridoxal and pyridoxal 5′-phosphate concentrations were low in patients with vitamin B6–dependent epilepsy but cerebrospinal fluid pyridoxal concentrations were not reduced in most patients with other epilepsies with low cerebrospinal fluid pyridoxal 5′-phosphate concentrations. Increase in 3-O-methyldopa and 5-hydroxytryptophan was demonstrated in some patients with vitamin B6–dependent epilepsy, suggestive of pyridoxal 5′-phosphate deficiency in the brain.
Conclusions
Low cerebrospinal fluid pyridoxal concentrations may be a better indicator of pyridoxal 5′-phosphate deficiency in the brain in vitamin B6–dependent epilepsy than low cerebrospinal fluid pyridoxal 5′-phosphate concentrations. This finding is especially helpful in individuals with suspected pyridoxal 5′-phosphate homeostasis protein deficiency, which does not have known biomarkers.
|
Keywords | ALDH7A1
PLPBP
PLPHP
PROSC
Pyridoxal 5′-phosphate homeostasis protein deficiency
Pyridoxine-dependent epilepsy
|
Note | © 2020 Elsevier Inc.. This manuscript version is made available under the CC-BY-NC-ND 4.0 License.http://creativecommons.org/licenses/by-nc-nd/4.0/.This is the accepted manuscript version. The formal published version is available at https://doi.org/10.1016/j.pediatrneurol.2020.08.020
|
Published Date | 2020-12
|
Publication Title |
Pediatric Neurology
|
Volume | volume113
|
Publisher | Elsevier
|
Start Page | 33
|
End Page | 41
|
ISSN | 0887-8994
|
NCID | AA10472238
|
Content Type |
Journal Article
|
language |
English
|
OAI-PMH Set |
岡山大学
|
File Version | author
|
PubMed ID | |
DOI | |
Web of Science KeyUT | |
Related Url | isVersionOf https://doi.org/10.1016/j.pediatrneurol.2020.08.020
|
License | https://creativecommons.org/licenses/by-nc-nd/4.0/
|