The article Laxative effect of repeated Daiokanzoto is attributable to decrease in aquaporin-3 expression in the colon, written by Risako Kon, Miho Yamamura, Yukari Matsunaga, Hiroshi Kimura, Moe Minami, Saki Kato, Nobutomo Ikarashi, Kiyoshi Sugiyama, was originally published electronically on the publisher's internet portal (currently SpringerLink) on 27 January 2018 without open access.
View Article and Find Full Text PDFDaiokanzoto (DKT) exerts its laxative effect via colonic inflammation caused by sennoside A in Daio (rhubarb). Previously, we showed that the laxative effect of sennoside A is related to decreased aquaporin-3 (AQP3) expression in mucosal epithelial cells due to colonic inflammation. We also found that a combination of glycyrrhizin, an ingredient in Kanzo (glycyrrhiza), and sennoside A attenuates the inflammatory response induced by sennoside A and reduces its laxative effect.
View Article and Find Full Text PDFWhile irinotecan (CPT-11) has a potent anti-cancer effect, it also causes serious diarrhea as an adverse reaction. In this study, we analyzed the pathogenic mechanism of CPT-11-induced delayed diarrhea by focusing on water channel aquaporin-3 (AQP3) in the colon. When rats received CPT-11, the expression level of AQP3 was reduced during severe diarrhea.
View Article and Find Full Text PDFPleurotus ostreatus was transformed using the nourseothricin-resistant gene for the first time. The transformation efficiency was 1.3±0.
View Article and Find Full Text PDFThe subcellular localization of 13 recently identified N-myristoylated proteins and the effects of overexpression of these proteins on cellular morphology were examined with the aim of understanding the physiological roles of the protein N-myristoylation that occurs on these proteins. Immunofluorescence staining of HEK293T cells transfected with cDNAs coding for the proteins revealed that most of them were associated with the plasma membrane or the membranes of intracellular compartments, and did not affect cellular morphology. However, two proteins, formin-like2 (FMNL2) and formin-like3 (FMNL3), both of them are members of the formin family of proteins, were associated mainly with the plasma membrane and induced significant cellular morphological changes.
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