Adult ; Aged ; Botulinum Toxins, Type A ; therapeutic use ; Dysphonia ; therapy ; Female ; Humans ; Laryngoscopy ; Male ; Middle Aged

Objective To explore the effect of miR-24-2 on the in vitro proliferation of U-2OS cells. Methods U-2OS cells were randomly allocat-ed into 4 groups:miR-24-2 mimic group,miR-24-2 inhibitor group,negative control group,and normal control group. MicroRNAs were transfected into U-2OS cells using Lipofectamine?2000. miR-24-2 expression level and the proliferation of U-2OS cells after transfection were detected by real-time quantitative RT-PCR(RT-qPCR)and MTT proliferation assays,respectively. Results RT-qPCR results showed that miR-24-2 level was sig-nificantly higher in the miR-24-2 mimic group and lower in the miR-24-2 inhibitor group than those in the controls,indicating the successive trans-fection. MTT proliferation assay results proved that the cell viability was significantly lower in the U-2OS cells transfected with miR-24-2 mimic and higher in inhibitor groups compared to the control. Conclusion MiR-24-2 inhibits growth of the U-2OS cells,which could be a potential biomarker in the treatment of osteosarcoma.

Objective To discuss the common causes for postoperative complications after treatment of spinal fractures and their preventive measures.Methods To analyze the 32 failed eases who received internal fixation for their thoracolumbar fractures between July 1998 and April 2005 in our department.Their preoperative and postoperative results of X-ray,CT and MIR examinations were reviewed to find out the causes for failure.Three of them were treated through anterior approach and 29 through posterior approach.Eighteen screws broke in eight eases, the rods got loosened in eight cases and broken in four cases,15 pedicte screws were mis-located in eight cases and the implants got loosened in three cases.Results Thirty patients had to get a reoperation.Two were cured through non-surgical treatment.The causes for failure were found to be as follows:1,incorrect operation approach;2,in- stability of the front-middle colunm;3,unskillful operation;4,ignorance or the lesion to the adjacent vertebral discs; 5,flaws in pedicle screw design.Conclusion To prevent postoperative complications after internal fixation for spinal fractures,surgeons should strictly stick to the indications before operation,choose a proper approach and method for internal fixation,try to stabilize the front-middle column by the first intention,and have a good command of anatomy and operation skills.

Objective To investigate the state of endemic fluorosis, running status of water improvement project to reduce fluoride in Jiangsu province, and to provide a scientific basis for prevention and control of endemic fluorosis. Methods In 2008, in the ten key counties of endemic fluorosis (zone), in Xuzhou,Lianyungang and Suqian, a stratified sampling method was employed to select 40 diseased villages according to their past water fluoride survey data. All children aged 8 to 12 were examined dental fluorosis, and all adults over 16 years were examined clinical skeletal fluorosis. Thirty per cent of the 40 diseased villages were selected, and 20 adults over the age of 16 in each selected village were examined by X-ray, respectively;50% of the 40 diseased villages were selected, and 30 any time urine samples of children aged 8 to 12 in each diseased village were tested urine fluoride. In each city, select a county, the status of water improvement project to reduce fluoride, water supply capacity and coverage in the county were investigated. Results A total of 3560 children aged 8 to 12 were examined, the detection rate of dental fluorosis was 38.51% (1371/3560), tooth defect rate was 5.34% (190/3560), and dental fluorosis index was 0.8. Seven hundred and eight urine samples were tested, the median urinary fluoride was 1.47 mg/L and the range was 0.08 ~ 10.08 mg/L. Clinical detection of skeletal fluorosis was 21.3% among adults over the age of 16, and X-ray detection rate of skeletal fluorosis was 39.2% (123/314).Investigated a total of 248 facilities of centralized water improvement projects, no funds to run or damaged 49, the water fluoride > 1.0 mg/L was 18. Conclusions Endemic fluorosis in Northern Jiangsu province has not been controlled completely, but has a rising trend, we should further strengthen the supervision of water fluoride reduction.

Objective To investigate the diagnostic value of MRI in the infantile developmental dislocation of the hip.Methods Forty-five cases of preoperative hip MRI data of DDH (patient group)and 40 cases of normal hip (control group)MRI data were retrospectively analyzed.Three types were classified according to the standard of Dunn.Then the bony acetabular index (BAI),cartilaginous acetabular index (CAI)were measured on coronal MRI and all the intra-articular structures (articular cartilage,labrum, teres ligament and iliopsoas)in the acetabulum that impeded the reduction of the femoral head were observed.Results There were normal hips (80 hips)and dislocated hips (73 hips).In dislocated hips typeⅠ (30 hips),typeⅡ (20 hips),and typeⅢ (23 hips) were found.The values of BAI were (26.13±2.19)°and (35.87±4.42)°,CAI (13.84±1.07)°and (21.92±4.70)°for patient group and control group.The values of BAI were (31.80±1.74)°,(37.80±3.40)°and (39.17±4.11)°,CAI (17.20±2.68)°,(20.91±2.02)°and (27.50±2.78)°for the typesⅠ,Ⅱ,Ⅲ respectively.Differences of BAI and CAI between patient group and control group were showed (t=-11.048 and -9.188,P =0.000).Statistically significants were found among the typeⅠ,Ⅱ,Ⅲ(F=22.159 and 47.241,P =0.000).There were linear correlations for patient group ,control group,and the typeⅠ,Ⅱ,Ⅲ (r= 0.964,0.844,0.953,0.931 and 0.870,P =0.000).Some pathological changes such as varus labrum,thick teres ligament,iliopsoas spasm,articular cartilage hyperplasia,fat hyperplasia,joint effusion were observed in the type Ⅱand Ⅲ.Conclusion MRI is not only used for measuring the values of BAI and CAI,and a linear correlation among all kinds of DDH,but also some factors hindering the reduction of the femoral head can be found clearly.It can provide an important reference basis for the diagnosis and treatment of DDH.

Action mechanism and material base of compound Danshen dripping pills in treatment of carotid atherosclerosis were discussed based on gene expression profile and molecular fingerprint in this paper. First, gene expression profiles of atherosclerotic carotid artery tissues and histologically normal tissues in human body were collected, and were screened using significance analysis of microarray (SAM) to screen out differential gene expressions; then differential genes were analyzed by Gene Ontology (GO) analysis and KEGG pathway analysis; to avoid some genes with non-outstanding differential expression but biologically importance, Gene Set Enrichment Analysis (GSEA) were performed, and 7 chemical ingredients with higher negative enrichment score were obtained by Cmap method, implying that they could reversely regulate the gene expression profiles of pathological tissues; and last, based on the hypotheses that similar structures have similar activities, 336 ingredients of compound Danshen dripping pills were compared with 7 drug molecules in 2D molecular fingerprints method. The results showed that 147 differential genes including 60 up-regulated genes and 87 down regulated genes were screened out by SAM. And in GO analysis, Biological Process ( BP) is mainly concerned with biological adhesion, response to wounding and inflammatory response; Cellular Component (CC) is mainly concerned with extracellular region, extracellular space and plasma membrane; while Molecular Function (MF) is mainly concerned with antigen binding, metalloendopeptidase activity and peptide binding. KEGG pathway analysis is mainly concerned with JAK-STAT, RIG-I like receptor and PPAR signaling pathway. There were 10 compounds, such as hexadecane, with Tanimoto coefficients greater than 0.85, which implied that they may be the active ingredients (AIs) of compound Danshen dripping pills in treatment of carotid atherosclerosis (CAs). The present method can be applied to the research on material base and molecular action mechanism of TCM.
Carotid Artery Diseases ; drug therapy ; genetics ; metabolism ; Drugs, Chinese Herbal ; administration & dosage ; Gene Expression Profiling ; Gene Expression Regulation ; drug effects ; Humans ; Salvia miltiorrhiza ; chemistry ; Signal Transduction ; drug effects

To explore the effective ingredients and mechanism of Ligusticum wallichii in treating brain ischemia. Four brain ischemia-related target proteins were selected in the joint screening for the 45 component in L. wallichii reported in literatures based on molecular docking by reference to the corresponding drugs in the market. According to the docking results, multiple components in L. wallichii, such as phthalides, were superior to the corresponding drugs in the market, suggesting that they may be the major effective components in L. wallichii for treating brain ischemia. The method can be used to study the material base and molecular mechanism of traditional Chinese medicines.
Brain Ischemia ; drug therapy ; Ligusticum ; chemistry ; Medicine, Chinese Traditional ; Molecular Docking Simulation ; Nitric Oxide Synthase Type II ; antagonists & inhibitors ; Peroxidase ; antagonists & inhibitors ; Phytotherapy ; Tumor Necrosis Factor-alpha ; antagonists & inhibitors

Objective To evaluate the effect of health education on endemic fluorosis in Jiangsu province,and to provide reference data for further prevention and control of the disease.Methods In 2011,according to history prevalence of endemic fluorosis in Jiangsu province,a total of 10 countries were selected,and 3 townships were chosen in each county.Health educational activities were carried out in the classes of grade 4 - 6 in thecentral primary school.In the meantime,3 villages were chosen in each selected township where the health educational activities in the community were carried out.Before and after the health education activities,questionnaire surveys on knowledge of endemic fluorosis were conducted in each county.Thirty students in one classof the fifth grade in the central primary school were randomly selected,and 15 housewives near the central primaryschool were also randomly selected.Results After the health educational activities,the rates of knowledgeawareness in the students and the housewives were 95.90％ (2946/3072) and 92.85％ ( 1752/1887 ),respectively,and increased significantly compared with those before the intervention[71.53％(2015/2817),77.40％( 1384/1788 ) ],and the difference was statistically significant(x2 =657.337,174.894,all P ＜ 0.01 ).Before the health educational activities,the rates of knowledge awareness in the students were lower than those in the housewives,and the difference was statistically significant (x2 =6.120,P ＜ 0.05 ).After the health educational activities,the rates of knowledge awareness in the students were higher than those in the housewives,and the difference was statistically significant(x2 =21.847,P ＜ 0.01 ).ConclusionsThe rates of knowledge awareness in the students and the housewives are increased significantly after the health educational activities.The consciousness and activity of the target people to take part in preventing and controlling of the endemic fluorosis have been enhanced greatly.The good behaviors in the target people are gradually formed,the desired effect is achieved.

Objective To evaluate the effect of health education on drinking-water-borne endemic arsenic poisoning in Jiangsu province in 2010.Methods Nine villages(townships) were selected from high-arsenic regions of Jiangsu province,and one primary school in each village(township) and one village from the 9 villages(townships)were selected as investigation points.Thirty pupils in the same class of grade 5 in each school,and 15 housewives in each village were chosen as research subjects.Referring to the health education questionnaire in Technique Scheme of Endemic Disease Prevention Granted by the Central Government in 2010,5 questions were selected.The reason,harm and prevention measures were reflected by the first,second and third questions.The way of knowledge acquisition and the situation of family drinking water were reflected by the forth and fifth questions.The awareness of prevention knowledge of drinking-water-borne endemic arsenic poisoning in pupils and housewives were investigated by calculating the awareness rate.Results Three hundred and nine pupils in the fifth grade and 144housewives were investigated in the baseline survey.Thenumber of response was 927 and 432,respectively; the number of correct answer was 537 and 234,respectively; the awareness rate was 57.93％(537/927) and 54.17％(234/432),respectively.Two hundred and seven pupils in the fifth grade and 135 housewives were investigated in the evaluation survey.The number of response was 810 and 405,respectively; the number of correct answer was 778 and 386,respectively; the awareness rate was 96.05％ (778/810) and 95.31％ (386/405),respectively.Conclusions Health knowledge of drinking-water-borne endemic arsenic poisoning has been improved among pupils and housewives in these areas.

Objective To investigate the development trend of drinking-water-borne endemic fluorosis in Jiangsu Province,and to provide the basis for further prevention and treatment of the disease.Methods In 2009,eight major counties were chosen,and in each county all diseased villages were classified into light,moderate and severe disease types according to water fluorine content based on historical data,and one village was chosen from each type.In monitoring villages with improved water,one source water and three tap water samples were collected,respectively.Five water samples were collected in water unimproved monitoring villages according to water well locations of the east,the west,the south,the north and the center.The fluorine content in water was determined according to the Standard Testing Methods for Drinking Water (GB/T 5750-2006).Children aged 8 to 12 were examined for dental fluorosis by Dean method.Residents over the age of 16 were examined for clinical osteofluorosis,and two monitoring counties were chosen,then one village was respectively chosen in each county,and clinically diagnosed patients with skeletal fluorosis were examined again by X-ray.Both clinical and X-ray diagnosis were on the basis of Diagnostic Criteria of Endemic Skeletal Fluorosis (WS 192-2008).Urine samples of 30 children aged 8 to 12 and of 20 adults over the age of 16 were randomly collected and urinary fluoride was determined by F-ion selective electrode method(WS/T 89-1996).Results Of all the 24 villages of 8 counties,20 villages were water improved,and water-improvedprojects ran normally in 18 villages,while scrapped in the rest 2 villages.One hundred and two samples were tested,and the mean of water fluoride in water-improved villages was 1.10 mg/L,while in water unimproved villages and villages with water improved projects scrapped was 1.90 mg/L.The prevalence of dental fluorosis was 42.51％(854/2009).The prevalence of clinical skeletal fluorosis was 23.23％ (2024/8713) and the X-ray detection rate was 32.00％ (24/75).Six hundred and sixty-four urine samples of children were determined,and geometric mean of urinary fluorine was 1.59 mg/L,while 370 adult urine samples were determined,and geometric mean of urinary fluorine was 2.20 mg/L.Conclusions Endemic fluorosis in Jiangsu Province has not been fully controlled and there are signs of recovery.We must pay attention to water improvement measures to reduce fluoride and the management and maintenance of water improvement projects,and further strengthen the prevention and control of endemic fluorosis.