Influence of low-intensity anticoagulation and low-dose antiplatelet agent on coagulation-fibrinolysis system after mechanical prosthetic valve replacement

AbstractJ Thorac Cardiovasc Surg 1998;115:952-

Examining the Validity of Efforts of the Muscular Dystrophy Medical Network in Nagano : A Questionnaire Study

Article信州医学雑誌 66(3): 205-212(2018)journal articl

Eribulin sensitizes oral squamous cell carcinoma cells to cetuximab via induction of mesenchymal-to-epithelial transition

Inhibition of epidermal growth factor receptor (EGFR) signalling has emerged as a new treatment strategy for oral squamous cell carcinoma (OSCC). Previously, we found that loss of EGFR expression in OSCC was associated with epithelial-mesenchymal transition (EMT), and may have functional implications with regard to resistance to cetuximab, a monoclonal anti-EGFR antibody. Eribulin (a microtubule inhibitor) reportedly renders breast cancer less aggressive, and less likely to metastasise, by triggering mesenchymal-to-epithelial (MET) transition. In the present study we evaluated whether eribulin-induced MET was associated with re-sensitization of resistant OSCC cell lines to cetuximab. In vitro antiproliferative activities were determined in three human OSCC lines (OSC-20, OSC-19 and HOC313) treated with eribulin. These three human OSCC represented different EMT/MET states. Interestingly, HOC313 cells (mesenchymal phenotype) were highly sensitive to eribulin in comparison with other cell lines, and significantly enhanced the anti-proliferative effect of cetuximab in response to the drug. Eribulin also underwent a MET-associated gene switch that resulted in morphological changes and high EGFR expression in HOC313 cells, and abrogated a TGF-β-induced EMT gene expression signature. Eribulin-dependent sensitization of OSCC to cetuximab is likely due to induction of MET. Combination therapies based on eribulin and cetuximab have potential as a novel treatment regimen in OSCC

A Study of Types of English Conversational Lessons ― Comparison between a Group Lesson and a Private Lesson ―

　Many Japanese wish to increase their skills in English yet posses many different learning styles. To answer the ever increasing differences in these styles, a great many English conversation schools have answered and are delivering methods for addressing these needs. For instance, some students are focusing on travel, business, and specific tests like TOEIC or TOEFL. The effectiveness of collaborative learning in an English as a foreign language （EFL） class is being introduced in this paper.　It is difficult to state clearly which is better: a private lesson or a group lesson, but the author recommends a group lesson for the following reasons:　1. To be able to help each other between students;　2. To be able to communicate with others as human relationships;　3. To enrich topics; and　4. To stimulate healthy rivalry.　The author hopes that the schools will be linked with specialists on English education and create classes from the viewpoint of their students’ anxiety or motivation. Moreover, it is desirable to clearly redesign the fee system

Chemical and Rb-Sr isotopic features of the shock-melted chondrite Yamato-793533

The Sr isotopic compositions and Rb and Sr abundances, as well as major element abundances in olivine, pyroxenes and glass, were determined for a chip and 21 fractions separated from a shock-melted chondrite Yamato-793533, a dark-colored, porous stone with glassy texture. Two lithologies were recognized for the 1.5g specimen studied (Yamato-793533, 67) ; L (Main portion) and L to LL (Dark portion) chondritic in terms of chemical compositions of olivine and pyroxenes. The chemical compositions of glass are relatively homogeneous (SiO2=67-77%) compared to those of other ordinary chondrites, suggesting a moderate cooling rate after shock-melting. The data points for fractions do not foem any isochron in a 87Rb/86Sr vs. 87Sr/86Sr diagram. However, it is noted that six out of nine points for the dark portion plot around a 1.2 Ga line, while most of points for the main portion plot around a 4.55 Ga chondrite isochron. The observed difference could be responsible for difference in melting degrees between the two portions. Similar Rb-Sr features have been found among shock-melted Yamato-79 LL-chondrites which are considered to be paired stones experienced the same shock-melting event at 1.2 Ga. Consequently, the Rb-Sr systematics as well as petrologic features strongly suggest that Yamato-793533 is a member of a series of the shock-melted Yamato-79 LL-chondrites