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  1. Article

    Open Access

    Meta-analysis of shotgun sequencing of gut microbiota in Parkinson’s disease

    We aimed to identify gut microbial features in Parkinson’s disease (PD) across countries by meta-analyzing our fecal shotgun sequencing dataset of 94 PD patients and 73 controls in Japan with five previously r...

    Hiroshi Nishiwaki, Jun Ueyama, Mikako Ito, Tomonari Hamaguchi in npj Parkinson's Disease (2024)

  2. Article

    Open Access

    Gastrointestinal disorders in Parkinson’s disease and other Lewy body diseases

    Parkinson’s disease (PD) is pathologically characterized by the abnormal accumulation of α-synuclein fibrils (Lewy bodies) in the substantia nigra and other brain regions, although the role of Lewy bodies rema...

    Masaaki Hirayama, Hiroshi Nishiwaki, Tomonari Hamaguchi in npj Parkinson's Disease (2023)

  3. Article

    Open Access

    Gut microbiota in dementia with Lewy bodies

    Gut microbiota and fecal bile acids were analyzed in 278 patients with α-synucleinopathies, which were comprised of 28 patients with dementia with Lewy bodies (DLB), 224 patients with Parkinson’s disease (PD),...

    Hiroshi Nishiwaki, Jun Ueyama, Kenichi Kashihara, Mikako Ito in npj Parkinson's Disease (2022)

  4. Article

    Open Access

    Short chain fatty acids-producing and mucin-degrading intestinal bacteria predict the progression of early Parkinson’s disease

    To elucidate the relevance of gut dysbiosis in Parkinson’s disease (PD) in disease progression, we made random forest models to predict the progression of PD in two years by gut microbiota in 165 PD patients. ...

    Hiroshi Nishiwaki, Mikako Ito, Tomonari Hamaguchi, Tetsuya Maeda in npj Parkinson's Disease (2022)

  5. Article

    Open Access

    Beneficial biological effects and the underlying mechanisms of molecular hydrogen - comprehensive review of 321 original articles -

    Therapeutic effects of molecular hydrogen for a wide range of disease models and human diseases have been investigated since 2007. A total of 321 original articles have been published from 2007 to June 2015. M...

    Masatoshi Ichihara, Sayaka Sobue, Mikako Ito, Masafumi Ito in Medical Gas Research (2015)

  6. No Access

    Article

    Collagen Q is a Key Player for Develo** Rational Therapy for Congenital Myasthenia and for Dissecting the Mechanisms of Anti-MuSK Myasthenia Gravis

    Acetylcholinesterase (AChE) at the neuromuscular junction (NMJ) is anchored to the synaptic basal lamina via a triple helical collagen Q (ColQ) in the form of asymmetric AChE (AChE/ColQ). We exploited the prop...

    Kinji Ohno, Mikako Ito, Yu Kawakami, Kenji Ohtsuka in Journal of Molecular Neuroscience (2014)

  7. Article

    Open Access

    Molecular hydrogen attenuates fatty acid uptake and lipid accumulation through downregulating CD36 expression in HepG2 cells

    There is accumulating evidence that obesity is closely associated with an impaired free fatty acid metabolism as well as with insulin resistance and inflammation. Excessive fatty acid uptake mediated by fatty ...

    Akio Iio, Mikako Ito, Tomohiro Itoh, Riyako Terazawa in Medical Gas Research (2013)

  8. Article

    Open Access

    Drinking hydrogen water and intermittent hydrogen gas exposure, but not lactulose or continuous hydrogen gas exposure, prevent 6-hydorxydopamine-induced Parkinson’s disease in rats

    Lactulose is a synthetic disaccharide that can be catalyzed only by intestinal bacteria in humans and rodents, and a large amount of hydrogen is produced by bacterial catalysis of lactulose. We previously repo...

    Mikako Ito, Masaaki Hirayama, Kazuaki Yamai, Sae Goto, Masafumi Ito in Medical Gas Research (2012)

  9. Article

    Open Access

    Open-label trial and randomized, double-blind, placebo-controlled, crossover trial of hydrogen-enriched water for mitochondrial and inflammatory myopathies

    Molecular hydrogen has prominent effects on more than 30 animal models especially of oxidative stress-mediated diseases and inflammatory diseases. In addition, hydrogen effects on humans have been reported in ...

    Mikako Ito, Tohru Ibi, Ko Sahashi, Masashi Ichihara, Masafumi Ito in Medical Gas Research (2011)

  10. Article

    Open Access

    The 2011 Medical Molecular Hydrogen Symposium: An inaugural symposium of the journal Medical Gas Research

    This report summarizes a brief description/history of the Hydrogen Research Meetings as well as key presentations/oral abstracts delivered in the most recent symposium. Additionally, we introduced 38 diseases ...

    Shigeo Ohta, Atsunori Nakao, Kinji Ohno in Medical Gas Research (2011)

  11. No Access

    Article

    Long-range PCR for the diagnosis of spinocerebellar ataxia type 10

    Tatsuaki Kurosaki, Tohru Matsuura, Kinji Ohno, Shintaroh Ueda in Neurogenetics (2008)

  12. No Access

    Article

    Myotonic dystrophy type 2 in Japan: ancestral origin distinct from Caucasian families

    Myotonic dystrophy type 2 (DM2) is caused by expansion of a tetranucleotide CCTG repeat in intron 1 of the ZNF9 gene on chromosome 3q21. All studied DM2 mutations have been reported in Caucasians and share an ide...

    Tsukasa Saito, Yoshinobu Amakusa, Takashi Kimura, Osamu Yahara in Neurogenetics (2008)

  13. No Access

    Article

    The spectrum of congenital myasthenic syndromes

    The past decade saw remarkable advances in defining the molecular and genetic basis of the congenital myasthenic syndromes. These advances would not have been possible without antecedent clinical observations,...

    Andrew G. Engel, Kinji Ohno, Steven M. Sine in Molecular Neurobiology (2002)