Publications by authors named "Karen Yamada"

Article Synopsis
  • - Pigs are the main carriers of the Japanese encephalitis virus (JEV), but a 2016 outbreak on Tsushima Island affected residents who did not farm pigs, prompting a study to assess the risk of JEV.
  • - A survey of 560 residents in early 2017 revealed high seroprevalence rates of neutralizing antibodies against two JEV strains, with notable levels in older individuals and those who spent time outdoors.
  • - Although wild boar samples tested negative for JEV RNA, they showed the presence of neutralizing antibodies, indicating that the virus can still be transmitted on the island and that wild boars may act as amplifying hosts.
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Schizophrenia is a neurodevelopmental disorder with high heritability. Several lines of evidence indicate that the PRODH gene may be related to the disorder. Therefore, our study investigates the effects of 12 polymorphisms of PRODH on schizophrenia and its phenotypes.

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Prepulse inhibition (PPI) is the reduction in the startle response caused by a low intensity non-startling stimulus (prepulse) which is presented shortly before the startle stimulus and is an operational measure of sensorimotor gating. PPI is impaired in schizophrenia patients and in rats with central dopamine (DA) activation. The inferior colliculus (IC) is a critical part of the auditory pathway mediating acoustic PPI.

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Cucumis sativus L. plants were grown in the greenhouse and exposed 21 times to simulated acidic rain over a period of 6 weeks to compare the responses of vegetative and reproductive tissues. Chemical composition and temporal characteristics of rain were patterned according to rainfall in the growing season in the eastern US.

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