Color ; Dental Materials ; Dental Restoration, Permanent

Animals ; Dental Cements ; chemistry ; Glass ; chemistry ; Humans ; Materials Testing ; Post and Core Technique ; instrumentation ; Quartz ; chemistry ; Root Canal Therapy ; Tooth Fractures ; prevention & control

Humans ; Mouth ; Photography

Dental Restoration, Permanent ; Humans ; Prosthesis Coloring

Humans ; Prosthesis Coloring

Adult ; Female ; Histiocytosis, Sinus ; Humans ; Nasal Cavity ; pathology ; Paranasal Sinuses ; pathology

Colorectal cancer is one of the most commonly seen malignant neoplasms in digestive tract.Most patients with colorectal cancer died of metastasis.The details of the metastasis-associated mechanisms are not elucidated completely.Recently,many genes that are involved in this course were detected.In this paper,the latest advances in those metastasis-associated genes and coding genes including C-myc,Ras,Her-2 ,p53,deleted in colorectal cancer gene (DDC),phosphatase and tensin homologue (PTEN),nm23 and other code genes,such as CD44,matrix metalloproteinases (MMPs) and mucins will be reviewed.

Objective To study the value of plasma D-dimer ＜ 500 μg/L level in diagnosis of pulmonary thromboembolism occurred in patients.Methods The clinical data of the patients with pulmonary embolism confirmed by imaging examination with plasma D-dimer levels ＜ 500 μg/L admitted from January 1st 2008 to June 30th 2011 were analyzed retrospectively.Results Totally,there were ten pulmonary embolism patients with plasma D-dimer levels ＜ 500 μg/L.The 10 eligible patients were assessed for the possibility of pulmonary embolism by using the Wells score (i.e.Wells clinical pretest probability prediction model).Of them,0 cases was evaluated as low clinical pretest probability (grade ＜2),7 cases as moderate clinical pretest probability (grade 2 ～6) and 3 cases as high clinical pretest probability (grade ＞ 6).Conclusions Pulmonary thromboembolism was easily misdiagnosed for lacking specific clinical manifestations and the missed diagnosis in patients caused high mortality,so it was difficult to exclude acute pulmonary embolism simply depending on the D-dimer levels ＜ 500 μg/L.Therefore,in case of plasma D-dimer levels less than 500 μ g/L,the possibility of pulmonary embolism cannot be ruled out in patients with moderate or high Wells clinical pretest probability.

Objective To explore the significances of the endoscopic diagnosis for chronic atrophic and histological assessment gastritis (CAG). Method Five hundred patients with CAG were determined by gastroscopy and the samples of gastric mucosa were examined by the pathology. Results Among 500 cases of CAG by gastroscopy, 429 cases were similar with the pathologic results and the coincidence rate of diagnosis with endoscopy and pathology was 85.8%(429/500), 370 cases had a change of atrophic gastritis in cirumjacent mucosa. Conclusion The coincidence rate of diagnosis under endoscopy and pathology is quite good in CAG.