Objective To observe the anesthetic effects of articaine hydrochloride and epinephrine tartrate injection in oral treatment of elder patients.Methods 66 teeth of 56 elder patients were treated.Pain intensity was scaled by VAS.Pulse and blood pressure were observed before and after drugs administration for 0,5 minutes.ResuIts Pain during injection of articaine hydrochloride and epinephrine tartrate injection and surgery subsequently was rare.The total respouse rate was 95%～100%.No significent toxic effects were found.Pulse and blood pressure remained after injection.Conclusion Articaine hydrochloride and epinephrine tartrate injection was one of local anesthetics with good infiltration,safety and anesehetic effect.It would be more widely used in elder patients oral treatment field in the future.

Objective To evaluate the clinical effects of magnetic attachments in complete overdenture. Methods Casting method was used to fabricate Coping-Keepers for remained roots, and the patients were followed up for 6 months to check the effects of the overdentures retained with Magfit EX attachments. In the experimental group, 21 complete overdentures were made with 33 Magfit EX magnetic attachments for 18 patients. Eleven patients treated with traditional complete overdentures were selected to act as control. The retention force, aspect and comfortableness were subjectively evaluated by the patients of the both groups. Abutment status was observed and compared before and after cementation of the magnetic attachments by measuring periodontal index, including gingival index (GI), sulcus bleeding index (SBI) and bleeding on probing (BOP), etc. Masticatory function of patients in the both groups was measured at 3 time points: immediate, 3 months and 6 months after cementation. Results Patients in experimental group were more satisfied with complete overdentures made up of magnetic attachments than those in control group, especially in retention force and masticatory efficiency and aspect. Magnetic attachments can provide enough retention force for patients and greatly improved the masticatory efficiency and the abutment condition. The masticatory function was to be perfect and stable after 3-6 months. Furthermore, the mobility and periodontal index of most abutments improved after 6 months. Conclusion It is proved that magnetic attachments are effective to improve the function of complete overdentures, worthy to be used widely. It is suggested that the residual root and loosened tooth should be preserved furthest as possible in clinic.

Objective To explore the procedures of breast repair and reconstruction after mastectomy with three methods for optimal appearances of the breast.Methods Three methods were adopted in this study:(1)Two-stage breast reconstruction operation with ampliate latissimus dorsi myocutaneous flap after mastectomy;(2)One stage breast reconstruction operation with transverse rectus adbominis myocutaneous(TRAM)flap after mastectomy;and(3)Two-stage breast reconstruction and nipple repair operation with tissue expander/implant after mastectomy preserving pectoralis major museulus or implants along under pectoralis major musculus.Results All of the flaps survived well and were well-shaped in total 10 patients(10 breasts)with a flap breast reconstruetion,in which the superior ratios were 83.33%.The appearance and volume were not satisfactory in 1 patiant treated with the method of tissue expander/implant,because the volume of tissue inflation was smaller than another one and 100 ml implant was applied.The partial flap necrosis occurred in 1 case with the method of TRAM flap.Conclusions With the development of plastic surgery technique,the appearances and shapes of reconstructed breast achieve the satisfactory effects.After the ampliate latissimus dorsi myocutaneous flap is applied,the appearance and volume of reconstructed breast are similar to the healthy one.The two-stage nipple repair operation is applied with breast reconstruction operation by the tissue expander/implant after mastectomy preserving pectoralis major musculus.According to the different methods of mastectomy to choose suitable procedures of breast reconstruction,the satisfactory appearances and psychotherapy will be achieved.

Objective To detect the differential expression profile of microRNAs between patients with or without gall?bladder stone. Methods Samples from 30 patients with gallbladder stones (GS) and 30 without gallbladder stones (GP) were collected, in which microRNAs expression profiles were examined using high-throughput sequencing instrument Illumi?na HiSeq 2500. MicroRNA sequences were obtained and compared to Genebank and Rfam database for classification. Differ?entially expressed microRNAs were screened, and their target genes were predicted. Significant enrichment analysis of GO and KEGG were performed. Real-time quantitative PCR was performed on selected miRNAs in order to validate their expres?sion. Results Clean tags were obtained from both GS group (n=2 215 832) and GP group (n=1 424 770). A total of 17 mi?croRNAs were differentially expressed between GS and GP groups with statistical significance, among which 9 were up-regu?lated and 8 were down-regulated in GS group compared to those in GP group. GO (Gene ocology) analysis showed that target genes were enriched in ion binding and transport, apolipoprotein binding, calcium channel activity, protein kinase activity, steroid hormone biosynthesis and metabolism. KEGG(Kyoto Encyclopedia of Genes and Genomes)analysis is shown for the target genes enriched in cancer related pathways, including WNT, HIPPO pathways. qRT-PCR validation of some differen?tially expressed miRNAs confirmed the result of high-throughput data analysis. Conclusion The differential expression levels of microRNAs may play an important role in occurrence and development of gallbladder stones.

This study is to establish the gastric cold model of rats. After gastric feeding with cold water for 5 weeks and extra iced water bath in the last 2 weeks, model group show distinct physical sign of gastric cold syndrome. The pathology of gastrics reveals gastricism of model group, while treatment group(treated with Fanzuojin Wan) show mild lesion. Elisa detection of model group show that the solution of interleukin-2 (IL-2) is higher than blank group. The difference with significance among model group, treatment group and blank group reveals the success of the establishment of gastric cold syndrome.
Animals ; Cold Temperature ; Disease Models, Animal ; Female ; Humans ; Male ; Rats ; Rats, Wistar ; Stomach ; chemistry ; metabolism ; pathology ; physiopathology ; Stomach Diseases ; metabolism ; pathology ; physiopathology

This study is to establish the gastric hot model of rats. After gastric feeding with ethanol solution for 3 weeks and feeding with extra capsaicin and ethanol solution for another 2 weeks, model group show distinct physical sign of gastric hot syndrome. The pathology of gastrics reveals gastricism of model group, while treatment group (treat with Zuojin Wan) shows mild lesion. Elisa detection of model group show that the solution of interleukin-2 (IL-2) is higher than the blank group. The obvious difference among model group, treatment group and blank group reveals the success of the establishment of gastric hot model.
Animals ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Eating ; Female ; Humans ; Male ; Rats ; Rats, Wistar ; Stomach Diseases ; drug therapy ; pathology ; physiopathology

Objective To study the changes rule of serum procalcitonin (PCT) and PCT clearance rate (PCTc) in patients with severe craniocerebral injury complicated with pulmonary infection and analyze the values of PCT and PCTc in the patients' therapeutic effect and prognosis.Methods A retrospective controlled analysis was conducted, the clinical data of 58 patients with severe craniocerebral injury complicated with pulmonary infection admitted into the Department of Neurology of the Forth Hospital of Tianjin from December 2012 to December 2016 were collected, and within 24 hours after definite diagnosis (before treatment) and after treatment for 1, 3, 7 days, the levels of PCT and percentages of PCTc were measured by rapid semi quantitative method. According to the therapeutic results of treatments, including antibiotics, airway management, nutritional support, etc., the patients were divided into an effective group and a deteriorative group. The changes rule of levels of serum PCT and percentages of PCTc before treatment and 1, 3, 7 days after treatment were dynamically evaluated. The receiver operating characteristic curve (ROC curve) was drawn and the area under the ROC curve (AUC) was calculated, and the sensitivity, specificity and diagnostic accordance rate of the combined treatment were assessed.Results Of 58 cases 32 (55.2%) after active treatment had promising therapeutic results or better prognosis (effective group), and the disease situations in 26 patients (44.8%) were deteriorating(deteriorative group). With prolonged treatment in effective group, the serum level of PCT was decreased gradually, while the deteriorative group showed a tendency firstly decreased and then increased, reaching to the valley on the 1st day after treatment, on the 3rd day beginning to increase and reaching the peak on the 7th day; the levels of PCT in effective group were significantly lower than those in deteriorative group at each time point after treatment on 1, 3, 7 days (μg/L: 1 day was 2.67±0.77 vs. 3.24±0.90, 3 days was 1.38±0.63 vs. 3.31±0.85, 7 days was 0.61±0.16 vs. 3.82±1.05, allP < 0.05); The PCTc rates in the effective group were significantly higher than those in the deteriorative group at each time point on 1, 3 and 7 d [1 day was (17.53±9.94)% vs. (12.31±7.55)%, 3 days was (60.34±13.55)% vs. (8.31±4.69)%, 7 days was (82.47±15.11)% vs. (-5.82±9.60)%, allP < 0.05]. After treatment for 3 days, 7 days, the AUC of PCT were 0.532 and 0.688, and the diagnosis cut-off values were 2.42 and 1.86 respectively; on 1, 3, 7 days after treatment, the AUC of PCTc were 0.529, 0.547, 0.775, and the diagnostic cut-off values were 15.67, 35.94 and 70.55 respectively. Further the final outcome was recognized as the gold standard: after treatment for 7 days, the PCT sensitivity was 80.1%, specificity 75%, the coincidence rate 77.6%; 7 days after treatment, the sensitivity of PCTc was 92.3%, the specificity 87.5%, the coincidencerate 89.7%.Conclusion The dynamic observations on serum PCT and PCTc have relatively good evaluation values on the therapeutic effect and prognosis of patients with severe craniocerebral injury complicated with pulmonary infection.

BACKGROUND: Colorectal cancer is a common malignant tumor in digestive tract. Theory of tumor stem cells (TSCs) offers a new approach to understand the development mechanism of colorectal cancer. OBJECTIVE: To review the progress in the existence, origin and identification of colorectal cancer stem cells (Co-CSCs). RETRIEVAL STRATEGY: Pubmed was undertaken to identify relevant articles published from January 1990 to July 2007 with the of "colorectal cancer,stem cell,tumor stem cells" in English.At the same time, Vip database was undertaken to identify the relevant articles published between January 1990 and July 2007 with the key words of "colorectal cancer, stem cell, tumor stem cells" in Chinese. The data were selected primarily, and then quotations of each article were checked. Inclusive criterion: the articles related to the advances of the existence, origin and identification of Co-CSCs were selected. Exclusive criterion: the articles with repetitive research were excluded. Totally 63 relevant articles were selected and 33 of them met the inclusive criterion. The 30 excluded articles were of old or repetitive content. LITERATURE EVALUATION: Of the 33 inclusive articles, 28 were on the existence and origin of Co-CSCs, 4 were about the isolation and identification of Co-CSCs, and 1 was about the problems and prospect. DATA SYNTHESIS: TSCs is a rare population of cells in tumor tissues with infinitely proliferative and self-renewal potential that drive the formation and growth of tumors. It may become a new target to eradicate malignant tumor. TSCs have been discovered in leukemia and some solid tumors. Intestine stem cells are poorly differentiated. Its phenotype is difficult to identify. There are many reports on the quantity, location, origin, function and relation with intestinal disease. Co-CSCs have been isolated and identified as EpCAMhigh/CD44+ cells recently, which accelerate to understand the mechanism of colorectal cancer. CONCLUSION: The discovery of Co-CSCs is one of the advances in researching of malignant tumor. TSCs may become a new target to eradicate malignant tumor, and brings hope to cure it.

Objective To investigate the effect of different dose of GM1 on inducing human adipose tissue-derived stromal cells (ADSCs) into neural cells. Methods Human ADSCs were isolated from human liposuction tissues and cultured in NIM with different dose of GM1, which was used to induce ADSCs into neural cells. The experiment was separated into six groups: control group (?-MEM), Group A (NIM), group B (NIM+50 ?mol/L GM1), group C (NIM+100 ?mol/L GM1), group D (NIM+200 ?mol/L GM1) and group E (NIM+400 ?mol/L GM1). Cells' growth and morphologic changes were observed under invert phase-contrast microscopy. The expressions of Nestin, NSE, MAP2 and GFAP were identified by immunocytochemistry methods.Results (1)ADSCs could differentiate into neural cells in NIM with different dose of GM1. The number of neural cells differentiated from ADSCs increased in a certain period, especially in group E at each time point (all P

Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Methyl Ethers ; analysis ; Workplace