ObjectiveTo explore the mechanisms of proliferation and apoptosis of K562 cells induced by cytarabine. MethodsDifferent doses of cytarabine on the proliferotion at K562 cell 24h,48h,72h were detected by MTT. Cell cycle And Apoptosis rate were detected by FCM. ResultsEach concentration of cytarabine obvious inhibited the growth of K562 cells. In the same concentrations,function of proliferation inhibition with cytarabine increased by the extension of time,which showed dose and time effect relations. Cytarabine on K562 cell,G0/G1 phase cell proportion of role as cytarabine increased when extension of time, S period and the G2/M period cells were decreased.Apoptosis of K562 cell in proportion as drug concentration and effect time increases, which present Cytarabine timeconcentration dependence. CondusionCytarabine was apparent inhibition to proliferation of K562 cell leukemia cell, which could promote K562 cell apoptosis by time and concentration dependence way.

OBJECTIVE: To summarize research progress of tissue-engineered tendon stent material and its application for repairing tendon defect. METHODS: A computer-based online search was conducted with the key words of "tissue engineering, tendon, scaffold" in both Chinese and English from January 1993 to October 2009. Articles about dynamical performance of tissue-engineered tendon,experimental research and clinical application of tissue-engineered tendon were included, but duplicated studies and Meta analysis were excluded. Among 38 articles, 4 major viewpoints were discussed: research progress of tendon tissue engineering; biodynamical analysis of tissue-engineered tendon stent materials; application of biomaterials for tendon tissue engineering; clinical application of tissue engineering for repairing tendon defect. RESULTS: Natural polymer and synthetic macromolecule were major materials in tendon tissue engineering. The preparation and selection of stent materials depended on producing imitated materials with advanced performance and structure based on artificial synthetic materials, preparing natural derivative stent materials based on natural extracellular matrix, and constructing tissue-engineered tendon based on original bio-structure and bio-performance of biological tissue. Construction of tissue-engineered tendon must simulate three-dimensional physical environment in vivo. Microcomputer-controlled step motor was used to force tendon-matrix compound stent in order to increase proliferation velocity of tendon cells and secretory volume of collagen and develop into stress direction. CONCLUSION: Physical stimulation is simple, thus technique and instrument for constructing artificial tendon need to be further studied. Additionally, living implants which may completely replace body tissue and organ function still need to be further studied and solved.

0.05) and associated with histopathologic grade and clinical stages (P

Objective:To explore clinical significance of the further method dealt with in ASCUS(atypical squamous cells undetermined significance) of cervical smear.Methods:118 patients with ASCUS were detected by colposcopy and high risk HPV test,simultaneously make biopsy of cervical guided by colposcopy.Result:By diagnosed with pathology,chronic cervical inflammation is 72 cases,46 cases were CIN(cervical intraepithelial neoplasia).In this study 40 cases were positive in HPV test which 33 cases are CIN(?2=48.18,P0.05).Conclusion:There are high CIN csses in Women with ASCUS whose should be paid attention to and strengthen management.Colposcopy and high risk HPV test are efficiency method to ASCUS,especially high risk HPV test is positive that need detective by colposcopy.The combination of colposcopy and high risk HPV test can improve detective rate and accuracy of cervical intraepithelial neoplasia(CIN).

Type 2 diabetes is associated with a marked increased risk of cardiovascular disease (CVD).Treatment for dyslipidemia in diabetes reduces cardiovascular event.This article reviewed the clinical trials of lipid lowering in diabetic subjects,treatment goals for lipoprotein therapy,and how to choose lipid lowering agents.

BACKGROUND:Tumor stem cels have self-renewal, drug resistance and metastasis tumorigenicity, which play an important role in occurrence, development and metastasis of tumors. Currently, there are two methods to identify tumor stem cels, namely, in vitro tumor sphere culture experiments and in vivo mouse tumorigenic experiments. However, there ia a lack of reports regarding clinicaly enriched gastric cancer cels by chemotherapy. OBJECTIVE:To investigate the enrichment of rat gastric cancer stem cels by cisplatin, and to explore the screening methods for their surface marker proteins. METHODS: BCG-823 gastric cancer model was established in rats, and then rat models were randomized into two groups: rats in experimental groups were subjected to intravenous injection of 0.1, 0.2, 0.25, 0.3 g/L cisplatin via the tail vein; those in control group were injected with normal salinevia the tail vein. After three courses of chemotherapy, gastric stem cels-enriched tissues were colected. Tumor surface proteins were extracted using high-throughput protein microarray and identified by western blot assay. Effects of cisplatin on enrichment of rat gastric cancer stem cels and screening methods for surface marker proteins were compared. RESULTS AND CONCLUSION:Cisplatin at a dose of 0.3 g/L×200μL exhibited the best therapeutic effects, and moreover, with the dose increasing, the tolerance became worse and the incidence of adverse reaction became higher. Transplantation tumors were verified by hematoxylin-eosin staining. Western blot test results were similar to the findings of protein microarray method, that is, HLA-DQ, PMP22 and Claudin7 protein expressions increased in gastric tissues, but HLA-DR, CD14, CD16 and CD56 protein expression decreased. These findings suggest that cisplatin can be used to enrich gastric cancer stem cels in rats, and to successfuly screen the corresponding surface marker proteins.

Objective To explore the application value of 256 slice helical multi phase CT scan-ning and three-dimensional reconstruction in the diagnosis of malignant tumor of colorectal obstruction. Methods Using 256 slice spiral CT scanning and three-dimensional reconstruction of multi period in 42 ca-ses of malignant tumor patients with colorectal obstruction, the results and pathological results were analyzed and the postoperative stage.Results Forty-two cases of malignant tumors of colorectal obstruction, 256 slice spiral CT could well reflect the situation of location, range, degree, peripheral intestinal lymph node and distant metastasis, CTA could show the tumor supplying artery and branch sources, on the tumor loca-tion and overall accuracy.Conclusions 256 layer spiral CT scan and three dimensional reconstruction technology is accuracy for clinical diagnosis on malignant tumor of colorectal obstruction.

Objective To investigate the nutritional status and glycemic control level in elderly patients with type 2 diabetes in urban community of Yangpu district in Shanghai.Methods The 24-hour dietary recall method for 3 consecutive days was used to investigate the dietary nutrients intake in 400 patients with type 2 diabetes.Results The ratio of patients with blood glucose level less than 6.1mmol/L was 23.3％ (93/400).The energy intake in patients with type 2 diabetes was low,and only reached 62.81％ of the recommended standard of energy intake for adults.The energy ratio of three diet nutrients (protein,fat and carbohydrate) were 14.41％,33.93％,51.66％ respectively,which showed that the energy ratio of fat was relatively high.The energy ratio of breakfast,lunch and supper dinner were 23.37％,38.05％ and 38.57％ respectively.The average intake of vitamin E,iron,niacin,manganese,phosphorus and cholesterol in elderly patients was more than the recommended standard of adult diet nutrients,and reached 149.6％,138.1％,137.1％,132.5％,127.5％ and 122.0％ of the recommended standard respectively.But the average intakes of protein,fat,carbohydrate,dietary fiber,calcium,zinc,copper,magnesium,potassium,vitamin A,vitamin B1,vitamin B2 and vitamin C in elderly patients were lower than the recommended standard,and reached 77.9％,90.3％,57.1％,50.7％,49.3％,81.4％,75.7％,75.7％,77.5％,77.0％,55.1％,58.1％ and 67.6％ of the recommended standard respectively.Conclusions The status of dietary nutrients intake in elderly patients with type 2 diabetes in Yangpu district of Shanghai is unreasonable,the intakes of dietary fiber,calcium,vitamin B1,vitamin B2 etc.were insufficient,and reasonable diet instruction should be provided for the elderly patients.

Objective To explore the C-type fixation in the application of the catheter tunnel peritoneal dialysis. Methods One hundred and twenty patients undergoing peritoneal dialysis were selected from January to December 2014 in Xijin Hospital and were randomly divided into the control group and experiment group. The peritoneal dialysis catheters of the control group were fixed vertically at the tube orifice with surgical tape, while the peritoneal dialysis catheters of the experiment group were fixed horizontally first and then placed with a shape ofC and fixed at the tube orifice with surgical tape. The two groups were compared in terms of tunnel score, infection, tube shedding and pulling-induced stimuli. Result The tunnel score and the cases of infection rate, tube shedding and pulling-induced stimuli in the experiment group were lower and fewer than those of the control group with statistical significance (all P <0.05). Conclusion The type C fixation of tube for peritoneal dialysis can effectively reduce the incidence of infections in patients with peritoneal dialysis tunnel, reduce pulling-induced stimuli, and improve comfort of the patients.

Objective The aim of this study was to examine hope level in patients with coronary heart disease after per-cutaneous coronary intervention and explore correlation with illness perception.Methods 176 patients in outpatient department were recruited after per-cutaneous coronary intervention.The Herth Hope Index (HHI),Illness perception Questionnaire-Revised and demographic and clinical characteristics were collected.Results The hope level score of patients after per-cutaneous coronary intervention was (36.18±3.21),the hope level was correlated with seven dimensions of illness perception and was influenced by degree of education,income level,whether the disease is acute or chronic and control belief.Conclusions The patients after per-cutaneous coronary intervention show high level of hope and is affected by many factors,this provides the basis for taking effective measures to improve the patients' level of hope.