Objective: To study the correlation between stress reaction and other psychological stress related factors in medical personnel, such as social support, life events, and coping style. Methods: 556 medical personnel were investigated with PSSS (Perceived Social Support Scale), LES (Life Event Scale), TCSQ (Trait Coping Style Questionnaire) and SRQ (Stress Reaction Questionnaire). Results: Correlation and multiple regression analysis revealed that there were statistically significant links between stress reaction and social support, life events, and coping style. Conclusion: Psychological stress is a multiple correlation system of psychological stress related factors.

Objective: To investigate the correlation between stress reaction and other related psychological stress factors such as life events, social support, and coping style in neurosis patients comparing with the group of healthy persons. Methods: 88 neurosis and 100 healthy persons were examined with LES (Life Event Scale), PSSS (Perceived Social Support Scale), TCSQ (Trait Coping Style Questionnaire), SRQ(Stress Reaction Questionnaire). Results: The scores of stress reaction, family events and negative coping style of neurosis group were significantly higher than those of healthy group, and the scores of social support out of family and positive coping style were significantly lower than those of healthy group. The regression analysis and path analysis revealed that in neurosis group stress reaction was directly correlated with negative coping style and social events, but in healthy group it was correlated with negative coping style and family events. Conclusion: Stress reaction may be directly affected with negative coping style and social events in neurosis patients, whereas it may be done with negative coping style and family events in healthy persons.

ObjectiveTo explore the electrophysiological mechanisms of the schizophrenic patients with aggressive or violent behaviors.MethodsAccess the aggressive behaviors of schizophrenic patients being treated in hospitals or clinics with the revised MOAS in accordance with the ICD-10 diagnostic criteria,and sort the qualified patients into two groups:the group of aggressive or violent schizophrenia (Aggressive Group,n=70) and the group of non-aggressive or non-violent schizophrenia ( Non-Aggressive Group,n =65 ) ; 60 age- and gendermatched healthy people were collected as Healthy Group.P300 tests were carried out on patients in these three groups with the MEB-9200 Nicolet Bravo Instrument by the Nihon Kohden Corporation.Results ( 1 ) latency P3a of the Aggressive Group on Cz point exceeded that of the Non-Aggressive Group (P =0.01 ),and that of the Non-Aggressive Group exceeded that of the Healthy Group.All these disparities were of statistical significance (P ＜0.01 ).Latency P3a of the Aggressive Group on Fz point exceeds that of the Non-Aggressive Group,and that of the Non-Aggressive Group exceeded that of Healthy Group.All these disparities are also of stafistical significance (P＜0.01).(2)N2' amplitude of the Aggressive Group on Cz point was higher than those of the Non-Aggressive Group and the Healthy Group.This disparity was of statistical significance(P ＜ 0.05 ) and the disparity between the Non-Aggressive Group and the Healthy Group did not have statistical significance (P =0.985 ).ConclusionCharacteristic electrophysiological changes exist in the event-related potentials P300 of schizophrenic patients with aggressive or violent behaviors.

Objective To explore the influences of serotonin transporter promoter region (5-HTTLPR)polymorphism on hypersensitive C-reactive protein(hs-CRP)in patients with depression. Method 5-HTTLPR polymorphism was detected by polymerase chain reactive-restriction fragment length polymorphism(PCR-RFLP)in 103 patients with depression and 103 healthy controls.The severity of depres-sion was evaluated by Hamilton Depression Scale(HAMD).The hs-CRP level was tested by immunofluores-cence.The influence of different genotypes on hs-CRP and the interaction of genotype and hs-CRP on the pathogenesis of depression were analyzed. Results The frequency of genotype and allele in 5-HTTLPR was no statistical significant(P=0.81,0.121)among the three groups.There were statistically significant differ-ences in hs-CRP concentration(P=0.007)among the three genotypes of the study group,and the concentra-tion of hs-CRP in SS genotype((8.1±2.7)mg/L)was significantly higher than that in LS((4.9±1.8)mg/L) and LL genotype((5.2±1.3)mg/L)(P=0.002,0.001).The retardation factor in patients were significantly differences in different genotypes(F=4.637,P=0.033).SS genotype(9.3±3.1)was significantly higher than LL(6.1±2.7)and LS genotypes(5.8±2.1)in retardation factor(P=0.008,0.007).Logistic regression analy-sis showed that SS genotype was associated with hs-CRP.The interactive effect was positive related to the morbidity of depression.The correlation of interaction between SS genotype and hs-CRP was greater than LL/LS(OR=1.890,95%CI=1.011-3.396). Conclusion SS genotype of 5-HTTLPR has strengthen effect on hs-CRP.The interaction of genotype and hs-CRP affects the onset of depression.The interaction of SS geno-type and hs-CRP is more likely to effect the onset of depression.

Objective The aim of this study was to investigate the expression of miR-455-5p in epithelial ovarian cancer and its effect on the development of epithelial ovarian cancer. Methods The miRNA expression data of normal ovarian epithelial tis-sues and epithelial ovarian cancer tissues GSE83693 were downloaded from the GEO database. Differential expression analysis was used to obtain differential expression data of miRNAs in epithelial ovarian cancer. The expression of miR-455 -5p was analyzed whether there is difference expression between normal ovarian epithelium and epithelial ovary cancer tissues; qRT-PCR was used to verify the differential expression prediction results; bio-informatics software was used to analyze the KEGG pathway enrichment and GO gene function annotation of miR-455-5p target genes,and to explore the disorders of dyregulated miR-455-5p in the devel-opment of epithelial ovarian cancer. Results A total of 101 cases of differentially expressed miRNAs were screened,34 cases were up-regulated and 67 cases were down-regulated. Among them,miR-455-5p was down-regulated significantly(P<0. 01),and the different fulds were -2. 9019. The results of qRT-PCR showed that the expression of miR-455-5p in epithelial ovarian cancer cells(SKOV-3,OVCAR-3 and A2780)was significantly lower than that in normal ovarian epithelial cells(IOSE-80),and the dif-ferential expression was statistically significant(P<0. 05). The results of KEGG pathway enrichment analysis showed that miR-455-5p regulated target genes mainly involved in five pathways,including TGF-β signaling pathway,Hippo signaling pathway,ECM-receptor interaction,transcriptional dysregulation pathway in cancer,and chronic granule cellular leukemia,which were associated with tumors. GO functional annotation analysis showed that the target genes regulated by miR-455-5p in the above pathway was mainly involved in protein phosphorylation,promoted cell proliferation and migration,inhibited apoptosis,promoted epithelial-mesenchymal transition,regulated transcription and regulated cell cycle,etc. ,which associated with tumorigenesis. Conclusion The expression of miR-455-5p is down-regulated in epithelial ovarian cancer. The miR-455-5p target genes are involved in the pathogenesis and function of epithelial ovarian cancer,and are associated with the development of epithelial ovarian cancer.

Objective The aim of this study was to investigate the expression of microRNA-150(miR-150)in human epi-thelial ovarian cancer cells and its effect on proliferation,apoptosis,invasion and metastasis of human epithelial ovarian cancer cells. Methods The expression level of miR-150 in cells from each treatment group was detected by Real-Time PCR(qRT-PCR);effects of proliferation,apoptosis,invasion and metastasis of epithelial ovarian cancer cells was investigated by MTT,flow cytometry, and transwell assays. Results Compared with normal ovarian epithelial cells(T29),the expression of miR-150 was significantly de-creased in epithelial ovarian cancer cells(A2780 and OVCAR3)(P<0. 01); After transfection miR-150 mimic,the expression of miR-150 in A2780 and OVCAR3 cells was significantly increased(P<0. 01);After 3 d of transfection,the OD values of the miR-150mimicgroup(A2780:1.12±0.03;OVCAR3:1.91±0.03)werelowerthanthatintheblankgroup(A2780:2.35±0.09;OVCAR3:2.63 ±0.07)and the miR-150 NC group(A2780:2.18 ±0.07;OVCAR3:2.43 ±0.11)(P<0.01);The apoptotic rate in the miR-150 mimic group(A2780:16. 10 ± 0. 58% ;OVCAR3:15. 16 ± 1. 30% ) were significantly increased when compared to the blank group(A2780:10. 07 ± 0. 66%;OVCAR3:3. 81 ± 0. 24%) and the miR -150 NC group(A2780:10. 36 ± 1. 08%;OVCAR3:4.89 ±0.07%)(P<0.01);The number of transmembrane cells in the miR-150 mimic group(A2780:38.67 ±2.03;OVCAR3:28. 67 ± 2. 03)was higher than that in the blank group(A2780:76. 30 ± 7. 45;OVCAR3:55. 67 ± 3. 18)and the miR-150 NC group(A2780:74. 33 ± 5. 78;OVCAR3:56. 33 ± 3. 84)(P<0. 01). Conclusion The decreased expression of miR-150 in epi-thelial cancer cells may be one of the mechanisms of proliferation,invasion and metastasis of epithelial ovarian cancer. Up-regulation of miR-150 may inhibit the proliferation of epithelial ovarian cancer cells and promote apoptosis to reduce the abilities of invasion and metastasis in epithelial ovarian cancer cells.