Objective To investigate the pressing time and puncture site bleeding after extubation of superficial venous catheter in elderly patients.Methods Four hundred elderly inpatients were selected from respiratory department during June 2015 and December 2015 and were divided into two groups:200 patients as experimental group with pressing time of 5-6 minutes and 200 patients as control group with pressing time of 3-4 minutes.The same group of nurses pressed the puncture site after extubation and changes on skin and vessels were observed,which was to find out the optimal pressing time after extubation of superficial venous catheter in elderly patients.Results The presence of bleeding,bruising,success rate of the second puncture,swelling,pain and degree of comfort were compared between two groups and significant differences were found (P＜0.05).Conclusion Compared with those in control group,less bleeding,bruising,swelling,and pain,higher success rate of the second puncture and lower degree of comfort were found in experimental group.

OBJECTIVE: To establish the quality standard of Tongtong granule. METHODS: Panax notoginseng,Ginkgo biloba and Pueraria lobata were identified qualitatively by TLC and the content of total flavonol glyconsides in G. biloba was determined by HPLC. RESULTS: The TLC spots were distinctive and specific. The linear range of quercetin, kaempferide, isorhamnetin were 5.24～83.84 ?g?mL-1(r=0.999 2), 4.56～72.96 ?g?mL-1(r=0.999 1) and 2.48～39.68 ?g?mL-1(r=0.999 4), respectively. The average recoveries were 96.21%(RSD=2.06%)、99.14%(RSD=1.19%)、95.00%(RSD=1.31%),respectively. CONCLUSION:The method is reliable, accurate, and reproducible for the quality control of Tongtong granule.

AIM:To establish the method of determining sodium new houttuyfonate in plasma and study its pharmacokinetics in beagle dogs.METHODS:The HPLC was employed with chromatographic conditions,such as octa-silicane bond silica gel column(250 mm?4.6 mm,5 ?m)as analytical column,methanol-water-ammonium hydroxide with 4 butyls(70 ∶30 ∶0.3)as mobile phase and at the flow-rate of 1.0 mL/min.The UV detection was set at 286 nm.The pharmacokinetic parameters were calculated by DAS(ver 1.0)program and compared by statistic analysis.RESULTS:The calibration curve was linear in blood plasma over the concentration range of 0.128～25.575 mg/L(r= 0.999 2),good precision and high recoveries.The parameters were T_ max= 5.0 min,C_ max= 4.982 mg/L,T_ 1/2=8.67 min.CONCLUSION:The analytical method established in this study is sensitive and exact,and can be used to measure the pharmacokinetics of sodium new houttuyfonate in beagle dog.The sodium new houttuyfonate can metabolize quickly following intravenous injection.

Objective To investigate the value of human epididymis secretory protein 4 ( HE4 ) combined with CA125 assay in differential diagnosis of endometriosis cyst and ovarian malignant tumor.Methods The level of HE4 and CA125 were measured by enzyme-linked immunosorbent assay (ELISA) in the serum specimens of 46 cases in endometriosis cyst group,36 cases in malignant ovarian tumor group,60 cases in benign ovarian diseases and 50 women in healthy women group.Those results were shown with median level.The normal range were 0-150 pmol/L in HE4 and 0-35 kU/L,which either one was more than the threshold value defined as positive index.The sensitivity of assay was evaluated by receiver operating characteristic (ROC) curve,the relation and value of HE4 or CA125 alone and combination assay in diagnosis of endometriosis was analyzed by Mann-Whitney U test and correlation analysis.Results (1) HE4:the median levels of HE4 were 52.4,51.0,50.0 pmol/L in group of endometriosis,normal control and benign ovarian tumor,which didn't show statistical difference.However,HE4 was 507.5 pmol/L inovarian cancer group,which was significantly higher than those of 3 groups (P < 0.05 ).(2 ) CA125:there were significant different in median level of CA125 was observed as 743.0 kU/L in ovarian cancer,84.9 kU/L in endoemtriosis,15.4 kU/L in benign ovarian disease,and 11.5 kU/L in healthy women (P < 0.05).( 3 ) The single assay:when compared with that in endometriosis group,receiver operating characteristic area under the curve( ROC-AUC) were 0.933 in HE4 alone and 0.821 in CA125 alone assay in ovarian cancer group.The specificity was 95% and the sensitivity was 79.6% and 49.0%.(4) The combination assay:when compared with those in endometriosis group,the ROC-AUC was 0.936,the specificity was 95% and the sensitivity was 81.0% in ovarian cancer.Conclusions Measurement of HE4 could be used in differential diagnosis of endometriosis cyst.And the combination of HE4 and CA125 assay could discriminate ovarian endometriosis cysts from ovarian malignant tumors effectively.

Objective To investigate the expression of hsa-miR-144 in esophageal squamous cell carcinoma, and its relationship with clinicopathological features and prognosis. Methods Reverse transcriptase polymerase chain reaction (RT-PCR) method was used to detect the hsa-miR-144 in 46 cases of esophageal squamous cell carcinoma and adjacent normal tissue. The expression of hsa-miR-144 in esophageal squamous cell carcinoma and its difference in the clinicopatho?logical characteristics including gender, age, and tumor size were investigated. The relationship between the expression of hsa-miR-144 and prognosis of patients with esophageal squamous cell carcinoma was analyzed. Kaplan-Meier method and Log-rank test were used to analyse the differences in survival rates in different pathological characteristics. Results The ex?pression level of hsa-miR-144 was lower in esophageal squamous cell carcinoma 0.97(0.22-24.48)×10-6 than that of adjacent normal tissue 8.60(0.09-258.20)×10-6, the difference was statistically significant (Z=2.221, P<0.05). The expression level of hsa-miR-144 was higher in esophageal squamous cell carcinoma with no lymph node metastasis than that in esophageal squa?mous cell carcinoma with lymph node metastasis (Z=2.758,P<0.05), and the expression level decreased with the increase in the pathological staging (Z=7.737,P<0.05). There were no significant differences in the expression levels of hsa-miR-144 between different gender, age, tumor size, tumor location, tumor differentiation and tumor invasion depth (all P>0.05). There was no correlation between the expression of hsa-miR-144 and prognosis in patients with esophageal squamous cell carcino?ma (rs=0.031, P=0.839). In the survival rate, there was no statistic significance between high expressive of hsa-miR-144 group and low expressive group (P=0.828). The survival rate was lower in patients with lymph node metastasis than that of pa?tients without lymph node metastasis. The survival rates were lower in patients with relatively deep invasion and higher patho?logic stage (P<0.05). Conclusion The expression of hsa-miR-144 is down regulated in esophageal squamous cell carcino?ma, and which is associated with lymph node metastasis and pathological staging of esophageal carcinoma. It shows that hsa-miR-144 may serve as an anti-oncogene in the occurrence and development of esophageal squamous cell carcinoma.

Carcinoma, Squamous Cell ; metabolism ; mortality ; Esophageal Neoplasms ; metabolism ; mortality ; Humans ; MicroRNAs ; metabolism ; Prognosis

OBJECTIVETo synthesize and evaluate a novel injectable and water-swelling gingival displacement materials.

METHODSA kind of water-swelling polymer, kaolin and aluminum chloride were mechanically mixed at certain ratio in water solution, resulting to a novel paste materials for gingival displacement. Then, its stability in aqueous solution and water swelling properties were evaluated in vitro. The effect on gingival displacement was evaluated by animal experiments in dogs. A commercial gingival displacement materials paste of Expasyl was used as control.

RESULTSWhile contacting with water, the novel gingival displacement paste did not collapse, maintained its integrity structure, and could expand for adsorbing water. Animal experiments in dogs showed that the materials could lead to displace the gingival margins from the dental root surfaces.

CONCLUSIONThe novel injectable and expanded gingival displacement material is efficient to retract free gingival margin with potential clinical application.

Objective To probe the reasonable range of central lymph node dissections(CLNs)for papillary thyroid carcinoma (PTC) in cN0 T1/T2 by analyzing the metastasis regulations of PTC in cN0 T1/T2.Methods Data of 891 PTC patients in cN0T1/T2 cases according to the research criterion from Oct.2013 to Sep.2017 were analyzed.All the patients were under the treatment of the same group of surgeons in Department of Thyroid Surgery of the First Affiliated Hospital of the Kunming Medical University and had undergone operation of bilateral total resection of thyroid gland and central lymph node.The clinical and pathological data were collected.Univariate and multivariate analysis were used to investigate the risk factors of central neck lymph node metastasis and high volume central neck lymph node metastasis.Results ①Univariate analysis showed that gender (P=0.002),age(P=0.002),multiform(P=0.000),nodular goiter(P=0.000)and with Hashimoto's(P=0.031)had significant influence in prevalence of CLN node metastasis.Gender(P=0.010)and tumor size(P=0.000)showed significant influence in prevalence of high volume CNL node metastasis.In multivariate analysis,age (OR=0.962,OR=2.856)and nodular goiter(OR=0.969,OR=3.012)showed the independent risk factor of CNL node metastasis and high volume CNL node metastasis.②The numbers of lesion in unilateral lesion were not correlated with IpsiCLNs and Cont-CLNs metastasis (P=0.347,P=0.653).The tumor diameter was correlated with Ipsi-CLNs and ContCLNs metastasis (P=0.010,P=0.000).The tumor diameter of bilateral multifocal carcinoma was correlated with LN-prRLN-CLNs metastasis (P=0.019).The tumor diameter of left and right unilateral single focal lesion was not correlated with LN-prRLN-CLNs metastasis(P=0.684,P=0.072).Conclusions According to the study,it is recommended that the PTC in cN0 T1/T2 should routinely undergo preventive central lymph nodes dissection in the case of technical support:①Preventive overall CLND is recommended for unilateral non-microscopic carcinoma and bilateral multiform carcinoma,especially in those older than 55.②For patients with unilateral single or multifocal microscopic carcinoma,only ipsilateral central lymph nodes dissection can be considered.③ Generally,routine dissection is not necessary for the lymph nodes of the right recurrent laryngeal nerve in the central region of the neck.However,for bilateral non-small cancers and right non-small cancers,LN-prRLN-CLNs dissection is recommended.

BACKGROUND: The placental tissue structure is complex, including the amniotic membrane, chorion, and decidua from the mother. Mesenchymal stem cells derived from different tissues of the same placenta have been reported to have similar biological characteristics. To date, there is no study regarding quantitative comparison of differentiation potential and immunomodulatory function of mesenchymal stem cells derived from different tissues of human placenta. OBJECTIVE: To investigate the biological characteristics including differentiation potential and immunomodulatory function of mesenchymal stem cells derived from different tissues of human placenta. METHODS: The amnion-, chorion-, and decidua-derived mesenchymal stem cells were isolated from the placental tissue of a baby boy by enzymatic digestion method. The biological characteristics of these three kinds of mesenchymal stem cells were systematically investigated including cell morphology, immunophenotypes, karyotypeanalysis, adipogenic and osteogenic differentiation potential, and Treg cells proliferation capacity. RESULTS AND CONCLUSION: All three kinds of mesenchymal stem cells showed fibroblast-like morphology and expressed the surface markers of mesenchymal stem cells with high expressions of CD73, CD90 and CD105, as well as low expressions of CD14, CD19, CD34, CD45 and HLA-DR. The karyotypes of the amnion-and chorion-derived mesenchymal stem cells were the same as the fetus, and decidua-derived mesenchymal stem cells had the same karyotype as the mother. There were significant differences in adipogenic differentiation capacity between three kinds of mesenchymal stem cells (amnion-derived mesenchymal stem cells> chorion-derived mesenchymal stem cells> decidua-derived mesenchymal stem cells; P < 0.05). In contrast, the osteogenic differentiation capacity of amnion-derived mesenchymal stem cells was remarkably higher than that of decidua-derived mesenchymal stem cells (P < 0.05). The amnion-and chorion-derived mesenchymal stem cells had the higher potential of Treg cell proliferation induction than decidua-derived mesenchymal stem cells. These findings indicate that three sources of human placenta-derived mesenchymal stem cells have different karyotypes, adipogenic and osteogenic differentiation potential, and immunomodulatory capability, providing a variety of ideal seed cell sources for disease treatment.

Objective To investigate the causal association between bronchial asthma and bone mineral density at different sites using a two-sample Mendelian randomization(MR)approach.Meth-ods Summary data for exposure factors and outcome were obtained from different genome-wide associ-ation studies.Single nucleotide polymorphisms strongly associated with bronchial asthma were selected as instrumental variables,and those in linkage disequilibrium were excluded.The inverse-variance weighted(IVW)method was used as the primary method for MR analysis,complemented by weighted median,simple mode,weighted mode,and MR-Egger regression methods.Sensitivity analyses were conducted to assess the stability of the results.Results The random-effects model of IVW analysis showed that heel bone mineral density(OR=0.986;95％CI,0.974 to 0.998;P=0.023)as the outcome dataset had a reverse causal effect with bronchial asthma,while lumbar spine bone mineral density(OR=1.031;95％CI,0.984 to 1.081;P=0.195),femoral neck bone mineral density(OR=1.014;95％CI,0.973 to 1.057;P=0.505),and forearm bone mineral density(OR=1.011;95％CI,0.935 to 1.094;P=0.775)as outcome datasets showed no causal effect with bron-chial asthma.The MR-Egger intercept test results indicated that the P-values for the intercepts of lumbar bone mineral density,femoral neck bone mineral density,forearm bone mineral density,and calcaneal bone mineral density were all over 0.05,suggesting no horizontal pleiotropy and relatively stable results.Conclusion MR analysis reveals a reverse causal effect between bronchial asthma and heel bone mineral density,suggesting that clinicians should strengthen the monitoring of heel bone miner-al density in patients with bronchial asthma to timely detect and intervene osteoporosis.