Publications by authors named "Hidetoshi Oguma"
Certain dentin hypersensitivity treatment materials include oxalic acid to coat dentin surfaces with minerals, while certain organic acids possess a remineralization effect. Herein, an organic acid that inhibits the demineralization and coating of root surfaces was evaluated. Specimens were produced using five non-carious extracted bovines.
View Article and Find Full Text PDFArticle Synopsis
- This study focused on modifying fullerene nanoparticles to make them water-dispersible through a reaction with di-amino alkane.
- The modification not only enhances water dispersibility but also allows for further changes to the particles' surface.
- The resulting particles possess useful features like fluorescence for detection and a distinctive shape, making them applicable in areas like bioimaging and drug delivery.
Sophisticated tongue movements are coordinated finely via cortical control. We elucidated the cortical processes associated with voluntary tongue movement. Movement-related cortical fields were investigated during self-paced repetitive tongue protrusion.
View Article and Find Full Text PDFLeft thoracoabdominal approach for adenocarcinoma of the esophagogastric junction.
Hepatogastroenterology
January 2009
Background/aims: To evaluate usefulness of esophagogastrectomy via left thoracoabdominal (LT) approach for adenocarcinoma of the esophagogastric junction (AEG), the results of surgery stratified by Siewert's classification, were analyzed retrospectively.
Methodology: The tumor diameter, distance of the proximal tumor border from the esophagogastric junction, and length of the esophagus in the resected specimens of consecutive 171 AEG patients were measured. The surgical approach was classified as total esophagectomy (TE), esophagogastrectomy via LT, or transhiatal/abdominal (HA) approach.
Background: Crohn's disease and ulcerative colitis (UC) are the two main entities involved in human inflammatory bowel disease (IBD). However, their precise etiologies remain unclear. To study the development of mucosal inflammation, and chronic inflammation-based dysplasia and carcinoma formation, we examined possible roles of the apoptosis inhibitor expressed by macrophages (AIM) in an experimental IBD model.
View Article and Find Full Text PDFBackground: Micrometastasis to the bone marrow can predict widespread disease and a poor prognosis of cancer patients after surgery. The purpose of this study was to evaluate the clinical significance of detecting micrometastasis in the bone marrow of gastric cancer patients.
Methods: Bone marrow and peripheral blood samples were obtained from 53 gastric cancer patients at the time of surgery.