La Mort sous la forme d'une jeune femme chez Cocteau : sur la genèse du personnage de la Princesse du film Orphée

正誤表あ

siRNA down-regulation of FGA mRNA in HepG2 cells demonstrated that heterozygous abnormality of the A alpha-chain gene does not affect the plasma fibrinogen level

Introduction: We encountered two afibrinogenemia patients with homozygous and compound heterozygous FGA mutation. Of interest, the patients' parents, who are heterozygous, had normal levels of plasma fibrinogen; thus, we hypothesized that liver FGA mRNA levels were higher than those of FGB and/or FGG mRNA. Materials and Methods: To test the hypothesis, we quantitated mRNA levels of a normal liver and a human hepatocyte cell line, HepG2 cells, and performed siRNA-mediated down-regulation of the fibrinogen gene in HepG2 cells. mRNA levels were determined using real-time quantitative RT-PCR for three normal livers and HepG2 cells. Down-regulation of FGA, FGB, or FGG in HepG2 cells was performed by the addition of siRNA corresponding to each of the three genes, and the mRNA levels determined in the cells and the secreted fibrinogen concentration in media. Results: The mRNA level of normal human liver was FGA=FGB>FGG and the FGG mRNA level was about 2-fold lower than the others, that of HepG2 cells was FGA>FGG>FGB and FGA mRNA was approximately 2- or 4-fold higher than FGG mRNA and FGB mRNA. When FGA, FGB, or FGG mRNA expression levels were down-regulated by nearby 50%, fibrinogen concentrations in media were 78%, 49%, or 57% of the control, respectively. Conclusions: Our results suggest that FGG mRNA levels limit fibrinogen expression in normal liver and HepG2 cells and that 50% reduction of FGA mRNA levels would not limit fibrinogen expression in normal liver and HepG2 cells.ArticleTHROMBOSIS RESEARCH. 131(4):342-348 (2013)journal articl

Preface

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77506/1/1700_ftp.pd

Potential of Panoramic Radiography as a Screening Method for Oral Hypofunction in the Evaluation of Hyoid Bone Position

The hyoid bone is located in the middle of the cervical muscles involved in oral masticatory function. The position of the hyoid bone is commonly determined by lateral cephalometric analysis. Although cephalometric radiography is commonly used in orthodontic treatment, the modality remains rare; routine dental care would benefit from precise identification of hyoid bone location using a more common modality, such as panoramic radiography. The purpose of this study was to investigate the usefulness of panoramic radiography compared to lateral cephalometric radiography for evaluating hyoid bone position as a potential screening method for oral hypofunction. The study included 347 patients referred for both a panoramic radiograph and a lateral cephalometric radiograph. The patients were divided into the following five groups according to the appearance of the hyoid bone in the panoramic radiograph: Group 1: hyoid bone could not be observed, or part of the greater horn was observed; Group 2: part of the hyoid body was observed, but not the most supero-anterior point of the hyoid bone; Group 3: the most supero-anterior point of the hyoid bone was observed; Group 4: all of the hyoid body was observed; Group 5: the hyoid body overlapped the mandible. The gold standard for measurement of hyoid bone position is the lateral cephalometric radiograph. Hyoid bone position as revealed by lateral cephalometric radiograph was compared among the groups. Hyoid bones that were observed in higher positions on lateral cephalometric radiograph were also observed in higher positions on panoramic radiograph. Hyoid bone position can be assessed by panoramic radiography, and this modality might be useful as a screening method for oral hypofunction