Humans ; Lichen Planus, Oral ; psychology

AIM: To compare the effect of treating cataract by sodium hyaluronate injection and lens - loop nucleus extraction of small incision cataract excision and explore more suitable method to promote the use of surgery in primary hospital.
METHODS: All 146 cataract patients ( 166 eyes ) were allocated to two groups in random: the control group 78 patients ( 84 eyes ) received conventional lens loop for extracapsular cataract extraction;the experiment group 68 patients (82 eyes) underwent nucleus extraction in small incision with sodium hyaluronate injection for extracapsular cataract extraction. Postoperative visual acuity and intraoperative and postoperative complications were compared between two groups.
RESULTS: Incidence of posterior capsule rupture difference was statistically significant (P<0. 05) in small incision nucleus extraction with sodium hyaluronate injection compared with conventional lens loop for extracapsular cataract extraction. And there was no significant difference ( P> 0. 05 ) in postoperative visual acuity, astigmatism degree and postoperative complications compared with those of pre-operation.
CONCLUSION: Compared with the lens loop nucleus extraction, sodium hyaluronate injection for extracapsular cataract extraction can effectively protect the posterior lens capsule and can be promoted in small incision cataract surgery.

Objective To analyze differential gene expression profiles by cDNA microarray in colon carcinomas with or without lymphatic metastasis. Methods cDNA microarray was prepared by spotting polymerase chain reaction (PCR) products of 16 000 human genes onto specially treated glass slides. The cDNA probes were prepared by labeling cancer tissue mRNA and lymphatic metastasis tissue mRNA with Cy3-dUTP and Cy5- dUTP through reverse transcription. The mixed probes were ,then hybridized to the cDNA microarray. The chips were scanned by Agilent fluorescence scanner and analyzed by gene Pix QuantArray. Results Among the 16 000 target genes, 999 genes were screened out for differences in gene expression level in the cases with colon carcinoma and lymphatic metastasis, among which 537 were up-regulated and 462 down-regulated. There were many genes evolved in the metastasis of colon carcinoma, including oncogenes, tumor-suppressor genes, adhesion molecular, matrix metalloproteinases, signal transduction factors, metabolism, immune associated genes, etc. Conclusion The genes, being closely associated with carcinoma metastasis, could be considered as potential markers to predict metastasis and targets for antimetastasis intervention.

Objective:To explore risk factors for no‐reflow after emergency coronary intervention in aged patients with a‐cute ST elevation myocardial infarction (STEMI) . Methods:According to presence of no -reflow (≤TIMI grade Ⅲwas considered as no-reflow) after operation or not ,a total of 700 aged STEMI patients hospitalized in our hospital during 2010-2013 were divided into no-reflow group (n=190 ,27. 14% ) and reflow group (n=510 ,72. 86% ) . Clinical data , PCI and coronary angiography data were collected ,compared and analyzed between two groups . Results:Compared with reflow group ,there were significant rise in percentages of patients with TIMI grade 0-1 (61.17% vs. 82.11% ) ,coro‐nary collateral blood flow grade 0 (64.12% vs. 74.21% ) ,5 thrombus scores before PCI (58.83% vs. 80.00% );signifi‐cant reduction in systolic blood pressure (SBP) at hospitalization [ (111.2 ± 24.6) mmHg vs. (101.7 ± 25.9) mmHg] in no-reflow group , P<0. 01 all. Multi-factor Logistic regression analysis indicated that SBP<101 mmHg at hospitaliza‐tion ,collateral blood flow grade 0 before PCI and 5 thrombus scores before PCI were risk factors for no‐reflow after emer‐gency PCI (OR=1.006~4.398 , P<0.05 or <0.01) .Conclusion:In aged acute STEMI patients ,those with risk factors for no-reflow after emergency PCI should take corresponding preventive and therapeutic measures in order to improve their prognosis .

Objective To investigate the risk factors of dual anti-platelet treatment in upper gastrointestinal hemor-rhage after percutaneous coronary intervention (PCI). Methods Clinical data of 2004 PCI patients with dual anti-platelet treatment were collected,including gender,age,body mass index (BMI),history of drug therapy, history of digestive disease, history of smoking and drinking,history of hypertension,history of diabetes,history of cerebrovascular disease and history of combined treatment with a proton pump inhibitor (PPI). The different characteristics of gastrointestinal bleeding were com-pared. The risk factors of upper gastrointestinal bleeding were analyzed. Results The risk factors for PCI patients with up-per gastrointestinal bleeding were age>65 years of old, history of smoking, history of hypertension,abnormal platelet count, creatinine and hemoglobin. The combined treatment with a proton pump inhibitor was a protective factor associated with gas-trointestinal bleeding. Conclusion We should pay attention to the upper gastrointestinal bleeding induced by dual anti-platelet treatment, and take appropriate measures to reduce the incidence of gastrointestinal bleeding in PCI patients.

Objective To describe the work of quality control for lipids measurement in CNHS 2002.Methods The quality control was applied over the whole project including staff training,making standard operating procedure(blood collection,separation,temporary storage,transportation,final storage),lab materials assignment,internal quality control in central lab and participating US Disease Control Center's Lipids Standard Program(LSP)as external quality control.Results Seven times of national training programs were held and 326 technicians from CDCs in 31 provinces,autonomous regions, municiplalities and 132 surveyed counties received related trainings.During the program,321 persons passed examination (98.5%)and among them 205 got the A score(62.9%);The field work was implemented strictly according to the procedure. Three automatic biochemical instruments were used in the measurement and there is no significant difference between means of serum TC,TG and HDL-C from several batches of quality control serum.Parallel measurements were conducted in five percent randomly selected samples,the ratio of bias less than 3% was 99.05%,96.40% and 98.30% for TC,TG and HLD-C, respectively.Compared with means of LSP control sera,the results showed that all bias was less than 5% except one bias of TG result(7.02%)in one batch of LSP controls.Conclusion The work of quality control in this survey guaranteed the accuracy of plasma lipids measurement,and provided the basic data for the epidemiological description of dyslipidemia status among Chinese and the further analysis.

Objective In order to get reference data for diagnosis of clinical genetic disease through analyzing chromosome ab‐normality types and rates in 885 patients who ask for cytogenetics consultation in recent years .Methods 324 newborns who asked for cytogenetics consultation because of high risk factors in down′s screening during pregnancy or found abnormality in physical ex‐amination after birth and 561 patients with history of spontaneous abortion ,infertility or fetal death ,growth or mental retardation , sexual abnormality were examined for karyotype analysis .Results 116 cases of chromosome abnormal karyotypes were detected , count for 13 .11% ,among which ,40 cases(34 .48% ) are chromosomal aberration .Chromosome abnormality types and rates are dif‐ferent in patients with different type of diseases .Conclusion Abnormalities in chromosome numbers and sex chromosome abnor‐mality account for the main causes of growth and mental retardation ,abnormalities of sexual differentiation and development ;but for couples suffered from spontaneous abortion ,polymorphism and structure abnormalities takes up the highest portion .

To build the Dendrobium nobile -T2DM network, and elucidate the molecular mechanism of D. nobile to type 2 diabetes (T2DM). Collect the chemical composition of D. nobile and the targets on T2DM by retrieving database and documents, build the network of D. nobile to T2DM using the entity grammar systems inference rules. The molecular mechanism of D. nobile to T2DM includes: (1) regulating lipid metabolism by lowering triglyceride; (2) reducing insulin resistance; (3) protecting islet cells; (4) promoting the glucose-dependent insulin tropic peptide (GIP) secretion; (5) inhibiting calcium channel. Under the guidance of network pharmacology, through entity grammar systems inference rules we elucidate the molecular mechanism of D. nobile to T2DM, and provide the basis for the further development of health care products based on D. nobile.
Animals ; Calcium Channels ; genetics ; metabolism ; Databases, Factual ; Dendrobium ; chemistry ; Diabetes Mellitus, Type 2 ; drug therapy ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; chemistry ; Gene Regulatory Networks ; drug effects ; Humans ; Hypoglycemic Agents ; administration & dosage ; chemistry ; Insulin Resistance ; Islets of Langerhans ; metabolism ; Triglycerides ; metabolism

Objective To explore the correlation between the change of hypoxic in microenvironment and the genesis of circulating tumor cells (CTCs) in gastric adenocarcinoma.Methods After human gastric adenocarcinomn BGC-823 cells treated with different concentration of CoCl2 (0,100,200,300,400 μmol/L)for four hours,the expression levels of hypoxia inducible factor 1 alpha (HIF-1α)were detected by Western blot to select the optimal concentration.A total of 40 BALB/c mice were divided into two equal groups,named hypoxic group and normoxic group.Optimal concentration of CoCl2 treated BGC-823 gastric cancer cells and non hypoxic induced BGC 823 gastric cancer cells were injected through the tail vein.After three days blood samples were collected through the angular vein.CTCs were enriched by density gradient centrifugation,identified with cytokeratin19 (CK19) antibody marker by cell immunofluorescence and cell number was counted.Statistical significace test were performed by analysis of variance and Dunnett-T test.Results The expression of HIF-1α reached a maximun of 1.40±-0.16 when BGC-823 cells were treated with 200 μmol/L CoCl2 for four hours.The number of CTCs in hypoxic group was higher than that of normoxic group ((4.70± 1.72)/high power field (HPF) vs (1.15±0.56)/HPF,Z=-4.824,P＜0.01).Conclusion Hypoxic microenvironment might promote the genesis of CTC in gastric adenocarcinoma.

Objectives To investigate medical students' satisfaction degree clinical practice,to find out the shortages of the clinical practice teaching,and to further put forward the measures of clinical practice.Methods By using a selfdesigned questionnaire,115 student interns were surveyed with anonymous questions,to collect data about the satisfaction degree of the hospital teaching conditions,conditions of teachers,practice quality of clinical departments,management department intern management work,the practical effect and views of clinical practice and other information.99 effective copies were retrieved using Excel analyze data.Results Interns' overall satisfaction with clinical practice is not high,and the satisfaction degree to the management department' work is the lowest,the satisfaction degree to the conditions of teachers of hospital is the highest.Conclusion Medical students'clin-ical practice satisfaction needs improving.To this end,we should improve the system and teaching conditions and strengthen management to meet the needs of students and improve their practice quality.