1.Research progress of Toll-like receptors in female malignant tumor
Journal of Chinese Physician 2016;18(4):638-640
As a connecting bridge between innate immunity and specific immunity,the Toll-like receptors (TLRs) play a significant role in inflammation,cellular signal transduction,and cell apoptosis.TLRs are also essential factors participating in immune regulation and immune escape in the pathogenesis and development of malignant tumors.A large number of clinical and experimental research have shown that the abnormal expression of TLRs can be detected in adenocarcinoma,such as lung cancer,breast cancer and colon caner.In recent years,the relationship between gynecologic malignant tumor and TLRs has received great interest.This article will review and summarize research progress of TLRs in ovarian cancer,cervical cancer,and endometrial neoplasia.
2.Analysis of OTOF Gene Mutations in 76 Cases of Auditory Neuropathy
Dayong WANG ; Qiuju WANG ; Lan LAN
Journal of Audiology and Speech Pathology 2004;0(06):-
Objective To perform mutation screening on the OTOF gene of 76 Chinese patients with sporadic auditory neuropathy for investigating whether the patients contained mutational hotspots in the OTOF gene,identifying the distribution and frequencies of OTOF mutations,and detecting new mutation points in the OTOF gene.Methods Genemic DNA samples were extracted from peripheral venous blood samples of the patients.9 primer pairs were designed using the Primer 5.0 software package for 9 exons of the OTOF gene,in which mutations had been discovered in the past.The exons were amplified using polymerase chain reaction(PCR),and direct sequencing of the PCR products was performed to detect OTOF mutations.For analysing the sequence data,the DNAStar 5.0 software package was used.Results 8 types of OTOF polymorphic alleles were discovered in this study.Among them,the 82 769delAG deletion mutation was only found in a patient diagnosed with temperature sensitive auditory neuropathy.In exon 25 of this patient's OTOF gene,the AG deletion mutation caused the replacement of amino acid at positions 993~999 and resulted in a truncated protein at position 1 000 amino acid(exon 26),which caused an early stop codon.(This protein has 1997 amino acids in all).Nevertheless,no other mutations were found in this patient's OTOF gene.The heterozygous 76 378C/T and 82 913G/A polymorphisms were single nucleotide polymorphisms(SNP) discovered in this study.Other SNP found were 56 842A/C,82 885C/A,and 92 905G/A,which had been already published by NCBI.In addition,92 995C/T and 96 888C/T were heterozygous mutations found in the exons,but did not cause the replacement of acid amino.Conclusion Eight SNPs were found in the OTOF gene of the Chinese patients in this study.However,mutations,which were previously identified in other ethnic origins in the literature,were not found in these patients.Thus,the result implied that the Chinese patients with auditory neuropathy may contain new OTOF mutations or other relevant disease-causing genes.
3.Development and evaluation of a new questionnaire for factors influencing the quality of nursing interns
Chinese Journal of Practical Nursing 2015;31(7):475-477
Objective To develop a questionnaire for factors influencing the quality of nursing interns.Methods The factors influencing the quality of nursing interns were formulated through literature review,interview and expert consultation.The pre-questionnaire was developed after modification.Exploratory factor analysis and correlation analysis were used to examine the reliability and validity of this questionnaire.Results Six common factors were extracted by exploratory factor analysis.Factor loading ranged from 0.487 to 0.889 for each item.The Cronbach α of the total scale was 0.814,and that of subscales ranged from 0.802 to 0.863.Retest-reliability coefficient of the total scale was 0.863,and that of subscales ranged from 0.794 to 0.931.Conclusions The self-designed questionnaire for factors influencing the quality of nursing interns has good reliability and validity,and can be used to measure the influencing factors for nursing interns.
4.Content Determination of the Eucalyptol in Chimonanthus Zhejiangensis by GC
China Pharmacy 2015;(21):2991-2993
OBJECTIVE:To establish a method for content determination of eucalyptol in Chimonanthus Zhejiangensis. METH-ODS:GC was conducted with Zebron ZB-WAX capillary column with temperature programmed;FID detector was used with the temperature of 250 ℃;the volume temperature was 220 ℃ and the carrier gas was nitrogen with high purity. RESULTS:Eucalyp-tol had a good linear relationship in the range of 0.017 69-1.415 mg/ml(r=0.999 1);the RSDs of precisions,stability and reproduc-ibility tests were no more than 1.87%and the average recovery was 99.72%(RSD=0.65%,n=6).There were big differences in dif-ferent areas of the same month and the maximum was more than one time (1.064%-0.450%);there were also big differences in the same area of different months(0.633%-1.064%). CONCLUSIONS:The method is simple,accurate,fast and reproducible and suitable for the quality control of Chimonanthus Zhejiangensis.
5.Expression of c-Jun N-terminal kinases in renal tissue of murine chronic graft versus-host disease lupus nephritis and the intervention of fluvastatin
Journal of China Pharmaceutical University 2010;41(2):180-185
This study was aimed to detect the expression of c-Jun N-terminal kinase (JNK) in renal tissues of lupus nephritis (LN) mice with chronic graft-versus-host disease (cGVHD) and to investigate that LN could be intervened by fluvastatin at different doses through the inhibition of JNK expression.LN models with cGVHD in mice were established first,and then diseased mice were randomly divided into four groups:normal control,fluvastatin intervention at high-dose group (10 mg/kg),fluvastatin intervention at low-dose group (5 mg/kg) and models without treatment.After killing the mice sixteen weeks later,total urine protein of every mouse was determined by a Biuret colorimetric assay.The protein and mRNA levels of JNK and p-JNK in kidneys were measured by immunohistochemistry,Western blot and RT-PCR,respectively.Compared with normal control,otal urine protein,JNK and p-JNK expressions at both mRNA and protein levels were significantly increased in cGVHD group (P <0.01),but their expressions were suppressed by fluvastatin treatment (P <0.01).JNK may play an important role in the pathogenetic progress of LN in mice,and fluvastatin is able to prevent LN via inhibition of JNK expression in renal tissues in cGVHD mice.
6.Effects of alcohol and alcohol expectations on executive function of social drinkers
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(9):838-841
Objective To explore the influence on each dimension of executive function of social drinkers with moderate dose of alcohol intake and different alcohol expectations.Methods 90 university students who were social drinkers allocated randomly by a lottery method to drinking group (n=31),control group (n=30) and placebo group (n=29).The Stroop task,1-Back task and local-global task were employed to measure executive function from three aspects respectively,namely the inhibition,updating and shifting process.Results Drinking group was compared with the Control group in the three dimensions of executive function:inhibition ((61.65 ± 26.31) ms,(42.48 ± 32.94) ms),updating ((557.23 ± 86.24) ms,(515.02 ± 70.24) ms),and shifting process ((718.85±246.03) ms,(553.95± 151.74) ms).The differences were statistically significant (P<0.05 or P<0.01).Placebo group was compared with the control group,in the three dimensions of executive function:inhibition ((39.25±29.35) ms,(42.48±32.94) ms),updating ((516.32±73.25) ms,(515.02±70.24) ms),and shifting process ((591.20± 193.07) ms,(553.95± 151.74) ms),all the differences had no statistically significance (P> 0.05).In the drinking group,positive expectation was negatively related to each dimension of executive function (-0.427,-0.330,-0.383).The inhibition and the shifting process appeared significant correlation(P<0.05).Negative expectation was positively related to each dimension of executive function (0.251,0.323,0.377).The shifting process appeared significant correlation (P<0.05).Regression analysis showed that positive expectation was significantly negative predictions of inhibition and shifting process.Conclusion Executive function of social drinkers is damaged after moderate alcohol intake,and there are differences between executive function damage of different alcohol expectancy drinkers.
7.Content Determination of Total Saponins in Effective Composition of Naomaitong
China Pharmacy 2005;0(19):-
OBJECTIVE:To establish the method for the content determination of total saponins in Naomaitong.METHODS:Colormetric method was applied using panoxadiol as control.The detection wavelength was set at 556 nm.RESULTS:The linear range of panoxadiol was 2.03~10.15 ?g?mL-1(r=0.999 6) with an average recovery of 100.69%(RSD=1.76%,n=6).CONCLUSION:The method is easy to operate with high precision,accuracy and good reproducibility for the quality control of Naomaitong.
8.Forensic analysis of 109 cases of traumatic visual loss
Chinese Journal of Forensic Medicine 2017;32(1):63-65
Objective To analyze types, mechanism and forensic identification for traumatic visual loss. Methods 109 cases of the evaluation for impairment and disability on traumatic visual loss were retrospectively analyzed, including interocular differences, anisometropia, left or right eye and the distributions of visual acuity, etc. Results The male-to-female ratio was 5.8:1, mainly 30~59 years of age. The ratio of monocular versus binocular injuries was 17.17:1. The ratio of left versus right injured eye was 1.39:1 in intentional injury cases. 115 eyes were injured, 83 of which were in low vision or blindness. 95 patients(87.16%) had large interocular differences( ≥ 3 lines). There were 9 patients with anisometropia from 2.25D to 6.00D and 23 patients with anisometropia larger than 6.00D. Conclusion Interocular differences and anisometropia are common in practice, which are not included in the expertise standard yet. Functional vision should be considered when developing the expertise standard.
9.Application of aptamers in the study of autoimmune diseases
Chinese Journal of Laboratory Medicine 2012;35(3):212-215
Aptamers are oligonucleotides or peptides those are able to bind tightly,by their specific three-dimensional shapes,to a variety of targets.Because of numerous merits ( high affinity,high specificity,small size,little immunogenicity,stable structures,and ease of synthesis),aptamers represent a valid alternative to antibodies and become a valuable research tool and show great application to fundamental research,drug selection and clinical diagnosis and therapy.The review describe the applications and the possible applications of aptamers in the diagnosis,treatment and pathogenesis of autoimmune diseases.
10.Cuff technique for cardiac xenotransplantation
Chinese Journal of Organ Transplantation 1997;18(4):212-213
The mouse heart was transplanted into the neck of rat using the cuff technique deseribed by Heron with a little modification.The graft accending aorta to the host common carotiel artery and the graft pulmonary artery to the host exteral jugular vein were performed.22 times of formal transplantation were done with the successful rate being 86%.The mean survival time was 2.10±0.80 days.The method is easy,quick and reliable.The superficial cervical localigation of the transplant is easily observed.This is a good model to observe the hyperacute rejection(HAR),to induce the translantation tolerance,and to screen the new immunosuppressive agents.