Clinical validity of biochemical and molecular analysis in diagnosing Leigh syndrome: a study of 106 Japanese patients

E Ogawa, M Shimura, T Fushimi… - Journal of Inherited …, 2017 - Wiley Online Library
Leigh syndrome (LS) is a progressive neurodegenerative disorder of infancy and early
childhood. It is clinically diagnosed by typical manifestations and characteristic computed …

[HTML][HTML] Clinical and molecular basis of hepatocerebral mitochondrial DNA depletion syndrome in Japan: evaluation of outcomes after liver transplantation

M Shimura, N Kuranobu, M Ogawa-Tominaga… - Orphanet Journal of …, 2020 - Springer
Background Hepatocerebral mitochondrial DNA depletion syndrome (MTDPS) is a disease
caused by defects in mitochondrial DNA maintenance and leads to liver failure and …

Mortality of Japanese patients with Leigh syndrome: effects of age at onset and genetic diagnosis

E Ogawa, T Fushimi… - Journal of Inherited …, 2020 - Wiley Online Library
Leigh syndrome is a major phenotype of mitochondrial diseases in children. With new
therapeutic options being proposed, assessing the mortality and clinical condition of Leigh …

[HTML][HTML] Long-term prognosis and genetic background of cardiomyopathy in 223 pediatric mitochondrial disease patients

A Imai-Okazaki, A Matsunaga, Y Yatsuka… - International Journal of …, 2021 - Elsevier
Background Cardiomyopathy is a risk factor for poor prognosis in pediatric patients with
mitochondrial disease. However, other risk factors including genetic factors related to poor …

[HTML][HTML] Effects of 5-aminolevulinic acid and sodium ferrous citrate on fibroblasts from individuals with mitochondrial diseases

M Shimura, N Nozawa, M Ogawa-Tominaga… - Scientific reports, 2019 - nature.com
Mitochondrial respiratory chain complexes II, III, and IV and cytochrome c contain haem,
which is generated by the insertion of Fe2+ into protoporphyrin IX. 5-Aminolevulinic acid …

Neonatal-onset mitochondrial disease: clinical features, molecular diagnosis and prognosis

T Ebihara, T Nagatomo, Y Sugiyama… - Archives of Disease in …, 2022 - fn.bmj.com
Objective Neonatal-onset mitochondrial disease has not been fully characterised owing to
its heterogeneity. We analysed neonatal-onset mitochondrial disease in Japan to clarify its …

Evaluation of endogenous nitric oxide synthesis in congenital urea cycle enzyme defects

H Nagasaka, H Tsukahara, T Yorifuji, T Miida… - Metabolism, 2009 - Elsevier
Nitric oxide (NO) is synthesized from arginine and O2 by nitric oxide synthase (NOS).
Citrulline, which is formed as a by-product of the NOS reaction, can be recycled to arginine …

Intractable secretory diarrhea in a Japanese boy with mitochondrial respiratory chain complex I deficiency

K Murayama, H Nagasaka, T Tsuruoka… - European journal of …, 2009 - Springer
The etiology of secretory diarrhea in early life is often unclear. We report a Japanese boy
who survived until 3 years of age, despite intractable diarrhea commencing soon after birth …

Molecular diagnosis of mitochondrial respiratory chain disorders in J apan: Focusing on mitochondrial DNA depletion syndrome

T Yamazaki, K Murayama, AG Compton… - Pediatrics …, 2014 - Wiley Online Library
Background Although mitochondrial respiratory chain disorders (MRCD) are one of the most
common congenital metabolic diseases, there is no cumulative data on enzymatic diagnosis …

[HTML][HTML] Therapeutic effect of N-carbamylglutamate in CPS1 deficiency

Y Sugiyama, M Shimura, M Ogawa-Tominaga… - Molecular Genetics and …, 2020 - Elsevier
The detoxification of ammonia to urea requires a functional hepatic urea cycle, which
consists of six enzymes and two mitochondrial membrane transporters. The initial step of the …