Publications by authors named "Y Yagishita"

The hepatic deletion of Rbpjκ () in the mouse leads to exhibition of the Alagille syndrome phenotype during early postnatal liver development with hyperlipidemia and cholestasis due to attenuated disruption of NOTCH signaling. Given the roles of NRF2 signaling in the regulation of lipid metabolism and bile ductal formation, it was anticipated that these symptoms could be alleviated by enhancing NRF2 signaling in the mouse by hepatic deletion of in compound mice. Unexpectedly, these mice developed higher hepatic and plasma cholesterol levels with more severe cholestatic liver damage during the pre-weaning period than in the mice.

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Article Synopsis
  • The study investigates the role of Jagged1, a ligand in the Notch signaling pathway, in β cell dysfunction associated with obesity and type 2 diabetes (T2D).
  • Researchers used mouse models and human patient samples to analyze Notch pathway components and their effects on insulin secretion.
  • Results indicate that blocking Jagged1 improves insulin secretion, highlighting its potential as a therapeutic target, although β cells themselves may not be the primary sources of the Jagged1 signal.
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Lipodystrophy is a disorder featuring loss of normal adipose tissue depots due to impaired production of normal adipocytes. It leads to a gain of fat deposition in ectopic tissues such as liver and skeletal muscle that results in steatosis, dyslipidemia, and insulin resistance. Previously, we established a lipodystrophy model mouse.

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Diaphragmatic hernia with bowel strangulation is a fatal condition requiring a prompt diagnosis. Bochdalek hernia is a common type of diaphragmatic hernia that rarely but occasionally occurs in adults. We herein report a case of Bochdalek hernia causing sigmoid colon strangulation in an elderly patient whose condition was initially misdiagnosed as empyema.

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Bardoxolone methyl (CDDO-Me) is an oleanane triterpenoid in late-stage clinical development for the treatment of patients with diabetic kidney disease. Preclinical studies in rodents demonstrate the efficacy of triterpenoids against carcinogenesis and other diseases, including renal ischemia-reperfusion injury, hyperoxia-induced acute lung injury, and immune hepatitis. Genetic disruption of abrogates protection by triterpenoids, suggesting that induction of the NRF2 pathway may drive this protection.

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