Research Topics
Species | F UsukiSummaryAffiliation: National Institute for Minamata Disease Country: Japan Publications
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Detail Information
Publications
Post-transcriptional defects of antioxidant selenoenzymes cause oxidative stress under methylmercury exposureFusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata 867 0008, Japan
J Biol Chem 286:6641-9. 2011..Treatment with ebselen, a seleno-organic compound, effectively suppressed oxidative stress and protected cells against MeHg-induced relative selenium deficiency and cytotoxicity...
Methylmercury activates ASK1/JNK signaling pathways, leading to apoptosis due to both mitochondria- and endoplasmic reticulum (ER)-generated processes in myogenic cell linesFusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata, Kumamoto 867 0008, Japan
Neurotoxicology 29:22-30. 2008..Combined treatment with protective factors against oxidative and ER stresses is necessary, especially in the later stages of MeHg cytotoxicity...
Specific inhibition of nonsense-mediated mRNA decay components, SMG-1 or Upf1, rescues the phenotype of Ullrich disease fibroblastsFusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata 867 0008, Japan
Mol Ther 14:351-60. 2006..We suggest that the inhibition of NMD may be useful as a therapeutic approach to treat some human genetic diseases exacerbated by NMD...
Beneficial effects of mild lifelong dietary restriction on skeletal muscle: prevention of age-related mitochondrial damage, morphological changes, and vulnerability to a chemical toxinFusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, 867 0008, Minamata, Japan
Acta Neuropathol 108:1-9. 2004..The results indicate that mild lifelong DR also protects skeletal muscle and peripheral nerves against a chemically-induced form of oxidative stress...
In vivo protection of a water-soluble derivative of vitamin E, Trolox, against methylmercury-intoxication in the ratF Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata 867 0008, Japan
Neurosci Lett 304:199-203. 2001..These data indicate that MeHg-mediated oxidative stress plays an important role in the in vivo pathological process of MeHg intoxication. Trolox may prevent some of clinical manifestations of MeHg-intoxication in humans...
Ataxia caused by mutations in the alpha-tocopherol transfer protein geneF Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata 867 0008, Japan
J Neurol Neurosurg Psychiatry 69:254-6. 2000..Supplementary therapy increased her serum vitamin E concentration to the normal range with mild improvement of the deep senses...
Differential signaling pathways following oxidative stress in mutant myotonin protein kinase cDNA-transfected C2C12 cell linesF Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, 4058 18 Hama, Minamata, 867 0008, Japan
Biochem Biophys Res Commun 267:739-43. 2000..These results suggest that the susceptibility to oxidative stress in mutant MtPK cDNA transformants involves differential signaling pathways evoked following oxidative stress...
The effect of methylmercury on skeletal muscle in the rat: a histopathological studyF Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, Hama, Japan
Toxicol Lett 94:227-32. 1998..These changes were more prominent in mitochondria-rich soleus muscle than in extensor digitorum longus muscle. Our findings confirm that MeHg exposure disturbs mitochondrial energy metabolism in skeletal muscle...
Inhibition of nonsense-mediated mRNA decay rescues the phenotype in Ullrich's diseaseFusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease, Hama, Minamata, Japan
Ann Neurol 55:740-4. 2004..Our results suggest that NMD inhibitors can be used as a therapeutic tool to rescue some human genetic diseases exacerbated by NMD...
Methylmercury exposure downregulates the expression of Racl and leads to neuritic degeneration and ultimately apoptosis in cerebrocortical neuronsMasatake Fujimura
Department of Basic Medical Sciences, National Institute for Minamata Disease, Kumamoto, Japan
Neurotoxicology 30:16-22. 2009..The results indicate that neuritic degeneration, in particular axonal degeneration triggered by the downregulation of Rac1 expression, contributes to MeHg-induced apoptotic cell death in cultured cerebrocortical neurons...
Methylmercury induces neuropathological changes with tau hyperphosphorylation mainly through the activation of the c-jun-N-terminal kinase pathway in the cerebral cortex, but not in the hippocampus of the mouse brainMasatake Fujimura
Department of Basic Medical Sciences, National Institute for Minamata Disease, 4058 18 Hama, Minamata, Kumamoto 867 0008, Japan
Neurotoxicology 30:1000-7. 2009....
Inhibition of the Rho/ROCK pathway prevents neuronal degeneration in vitro and in vivo following methylmercury exposureMasatake Fujimura
Department of Basic Medical Sciences, National Institute for Minamata Disease, Kumamoto, Japan
Toxicol Appl Pharmacol 250:1-9. 2011..The results suggest that inhibition of the Rho/ROCK pathway rescues MeHg-mediated neuritic extension/retraction incoordination and is effective for the prevention of MeHg-induced axonal degeneration and apoptotic neuronal cell death...
[Specific inhibition of nonsense-mediated mRNA decay has the potential to rescue the phenotype of muscular dystrophy]Fusako Usuki
Department of Clinical Medicine, National Institute for Minamata Disease
Rinsho Shinkeigaku 46:939-41. 2006..The results suggest that specific inhibition of NMD may be useful as a therapeutic approach to treat some human genetic diseases exacerbated by NMD...
