Adult ; Aspergillosis ; pathology ; Female ; Humans ; Laryngeal Diseases ; microbiology ; Male ; Middle Aged ; Vocal Cords ; microbiology

Objective To observe the clinical effect of calcitonin(PCT) in the identification of bacterial infection and viral infection.Methods 150 cases were randomly selected,including 50 cases of viral infection,100 cases of bacterial infection.The people with physical examination at the same period in the hospital whose peripheral blood culture were negative were selected as control group.PCT concentrations of various bacterial infections were observed,as well as the concentrations of PCT in various viral infections,and compared with the control group.Results The PCT level in the bacterial infection group was (8.023±3.542)ng/mL, which was significantly higher than (0.031±0.011)ng/mL in the control group(t=15.960,P=0.000).There was no significant difference in the level of PCT between the viral infection group [(0.032±0.008)ng/mL] and the control group [(0.031±0.011) ng/mL] (t=1.903,P=0.059).In different bacterial infections,the PCT level in sepsis was the highest [(17.544±4.511)ng/mL],followed by bacterial peritonitis and infectious pancreatitis[(5.131±1.231)ng/mL,(4.941±1.665)ng/mL].The PCT level of cellulitis was the lowest [(27.544±4.511)ng/mL].Of a variety of viral infections,the patients with EB virus infection had slightly higher PCT level[(0.027±0.002)ng/mL],which of measles virus infection was slightly lower[(0.021±0.002)ng/mL],the overall PCT level had no significant difference.Conclusion It is important to identify the bacterial infection and viral infection, which can provide a reliable basis for clinical treatment.

Objective To explore a set of suitable content and methods of evaluation for nursing students' humanistic quality. Methods Using dynamic evaluation theory, from three aspects of the evaluational main body, evaluation content and evaluation way, we assessed 261 nursing students' humanistic quality of the five-year undergraduate. Results Based on students' four consecutive years of assessment,results showed that the students' spirit had obviously changed, the students' comprehensive achievements had obviously promoted, the students' employment was obviously higher than other professionals and the students' degree of satisfaction from employing unit had increased yearly. Conclusions Dynamic evaluation can evaluate the best development of students, to strengthen nursing students' humanities education, to improve level of nursing students' humanities education, it is feasible in humanities education of higher nursing profession.

Background and purpose: With the development of therapy equipments and technology, the treatment for nasopharyngeal carcinoma(NPC) has entered into the era of precision radiotherapy, and setup errors have become a very important factor affecting treatment effects. The purpose of this study was to analyze the set-up errors detected by the kilovoltage cone beam CT(EPID) and the megavoltage electronic portal imaging device(CBCT) using 2 kinds of different immobilization techniques (pillow+head neck shoulder mask and vacuum bag+head neck shoulder mask) for NPC patients. Methods:A total number of 40 NPC patients were randomly assigned into 2 groups (pillow+head neck shoulder mask group and vacuum bag+neck shoulder mask group). Then each group was further divided into CBCT scan group and EPID group for veriifcation before treatment delivery. We matched the EPID images with the DRRs and acquired the set-up errors in x, y, z axis. Setup errors of CBCT were calculated according to its matched and planned CT images in left-right (x), superior-inferior (y) and anterior-posterior (z) directions. Paired t-test was used to evaluate the differences. Results:In the pillow+head neck shoulder mask group, the set-up errors of CBCT in the x, y, z axis were x (0.67±2.01)mm, y (0.51±1.71)mm and z (0.57±2.04)mm, respectively. The errors of EPID were x (0.69±2.19)mm, y (0.54±2.03)mm and z (0.61±2.11)mm. In the vacuum bag+head neck shoulder mask group, the set-up errors of CBCT in the x, y, z axis were x (0.42±1.81)mm, y (0.33±1.55)mm and z (0.50±1.75)mm, respectively. The errors of EPID were x (0.44±1.87)mm, y (0.43±1.70)mm and z (0.54±1.77)mm. The vacuum bag+head neck shoulder mask ifxed technique was more accurate when compared to the pillow + head neck shoulder mask ifxation method (P<0.05). Conclusion:CBCT and EPID were similar in detecting set-up errors for the NPC patients. However, the vacuum bag+neck shoulder mask ifxed technique was more accurate when compared to the pillow+head neck shoulder mask ifxation method.

Background and purpose: Itch protein is an established regulator of T cell immune response thresholds, belong to a class of E3 ubiquitin-transferring enzymes, widely involve in the ubiquitination of several key signaling molecules, such as ZAP70, P85, VAV, PLC-γ, PKC-θ, etc, plays a critical role in tumor induced immu-nosuppression. Itch ligase activity regulate T-cell anergy and development of regulatory T cells in the periphery by modulating key components of T-cell receptor and transforming growth factor-βsignaling. Therefore, manipulation of Itch activities may provide the opportunities to develop future therapies for immune disorders such as autoimmunity and cancer. speciifc small interfering RNA(siRNA) was utilized to silence the expression of Itch gene of T-lymphocytes and investigate the cytotoxicity activity of transfected T lymphocytes against MFC stomach neoplasms cells in vitro. Methods:T lymphocytes were isolated from the spleen of 615 mice and transfected by speciifc siRNA to silence the expression of Itch gene, The expression of Itch protein were examined by Western bolt in each group;72 hours after transfection, The secretion level of IL-2, INF-γwere measured by enzyme-linked immunosorbent assay (ELISA). At the end, the cytotoxicity activity changes against MFC stomach neoplasms cells was compared between transfected T lym-phocytes, negative control and blank control in vitro. Results:Compared with control group, the expression rate of Itch protein of transfected T-lymphocytes was decreased to 16%after transfection 48 hours;72 hours after transfection, the secretion level of IL-2 in transfection group, negative control and blank control respectively were (1 891.96±141.91)pg/mL, (1 241.69±91.67)pg/mL and (1 175.03±89.14)pg/mL (P<0.001), the secretion level of INF-γin transfection group, negative control and blank control respectively were (958.33±75.46)pg/mL, (683.33±66.67)pg/mL and (691.72±68.72) pg/mL (P<0.05). Transfected T lymphocyte also showed more efifcient killing ability against MFC stomach neoplasms cells than negative control and blank control in vitro, the highest killing rate has reached (54.18±2.96)%. Conclusion:Silencing Itch gene can signiifcantly promoted the secretion level of IL-2, INF-γof mice T lymphocyte, enhanced the cytotoxicity activity of T lymphocyte against MFC stomach neoplasms cells in vitro.

Aim:To characterize the immune response to YCP, a polysaccharide (PS) isolated from marine filamentous fungus Phoma herbarum YS4108. Methods:YCP was coupled to bovine serum albumin (BSA) to construct three neoglycoproteins which are different in their degrees of substitution (DSs; ≈ 3, ≈ 6, or ≈ 10 mol of BSA carrier/mol of YCP hapten, respectively), and their immunogenicities were evaluated in mice following subcutaneous immunization,respectively. IgG subclasses against the PS and the carrier protein were measured in addition to the total IgG and IgM antibodies for YCP induced by the neoglycoproteins. Results: While unconjugated PS was weakly immunogenic, theneoglycoprotein induced vigorous primary IgM and booster IgG responses to PS and the carrier protein. Interestingly,the IgG subclass distribution was different between PS and the carrier protein; for PS, the IgG response was predominant of IgG2a subclass with approximately low levels of IgG2b and IgG1, while the response to the carrier protein was mainly of the IgG1 subclass with relatively low levels of IgG2a and IgG2b, and the lowest of IgG3. Conclusion:YCP has the potential to elicit preferentially IgG2a as the dominant isotype antibody in mice.

AIM: To observe the effect of microRNA-16 (miR-16) on the megakaryocytic differentiation of K562 cells, and to explore the potential mechanism.METHODS:miR-16 was over-expressed or silenced by transfection with miR-16 mimics or inhibitor in K562 cells.The level of miR-16 was detected by real-time PCR.The expression of CD41, CD42b and CD61, as megakaryocytic differentiation markers, was detected by flow cytometry.The effect of miR-16 on the expression of myeloblastosis oncogene ( MYB) was measured by Western blotting, and flow cytometry was performed to confirm whether the effect of miR-16 on expression of CD41, CD42b and CD61 was mediated by MYB.RESULTS:Transfection with miR-16 mimics dramatically elevated the level of miR-16 and the expression of CD41, CD42b and CD61 in the K562 cells.Transfection with miR-16 inhibitor decreased the level of miR-16 and the expression of CD41, CD42b and CD61 in the K562 cells (P<0.05).The expression of MYB was regulated by miR-16, and MYB silencing reversed the regulation of CD41, CD42b and CD61 induced by miR-16.CONCLUSION:miR-16 regulates the megakaryocytic dif-ferentiation of K562 cells by targeting MYB.

Acupuncture Therapy ; Adult ; Humans ; Male ; Myelitis ; complications ; therapy

Objective · To design and synthesize a series of benzenesulfonamide derivatives, test their inhibitory activity to CDK2-cyclinA2 kinase, and investigate the structure-activity relationship. Methods · Virtual screening was executed via computer-aided drug design according to the ATP binding site in CDK2-cyclinA2 protein crystal. A series of benzenesulfonamide derivatives were designed and synthesized on the basis of the interaction modes between the lead compound and the CDK2-cyclinA2. The biological evaluation of compounds was made through the CDK2-cyclinA2 in-vitro kinase activity detection system. Results · Twenty-nine new benzenesulfonamide compounds were prepared, and their inhibitory activity to CDK2-cyclinA2 was elicited. WZ-026 had the highest inhibitory parameter, which half maximal inhibitory concentration (IC50) was 3.81 μmol/L. Conclusion · By multipurpose utilization of virtual screening, chemical synthesis, and biological activity test, a benzenesulfonamide compound WZ-026 was found, which has great inhibitory activity towards CDK2-cyclinA2. Preliminary structure-activity relationship of compounds was obtained.

Objective To investigate the value of glycated hemoglobin(HbA1c)and urine trace albumin (u -ALB)content in early diagnosis of type 2 diabetic nephropathy.Methods 200 patients with type 2 diabetes were selected as diabetes group,and 30 cases of healthy people as control group.According to the content of HbA1c, the diabetes patients were re -divided into low group (HbA1c <7%),the median group(7.1%≤HbA1c≤10%) and high value group (HbA1c >10.1%).The levels of HbA1c and u -ALB were detected and the correlation between them was calculated.Results The values of HbA1c (8.85 ±1.22)% and u -ALB (88.3 ±12.4)mg/L in the diabetes group were significantly higher than those of the control group (t =10.88,54.25,all P <0.05);The level of HbA1c in the high,medium and low group[(11.02 ±1.37)%,(8.45 ±2.01)%,(6.88 ±1.23)%]were consistent with the levels of the respective levels of fasting glucose[(13.22 ±2.05)mmol/L,(9.25 ±1.28)mmol/L, (6.27 ±0.63)mmol/L].HbA1c and constituting the u -ALB levels were positively correlated in the high,medium and low group(r =0.452,0.512,0.452,all P <0.05).Conclusion The combined detection of HbA1c and u -ALB levels has important value for early diagnosis of type 2 diabetic nephropathy.