[ABSTRACT]AIM:Toinvestigatetheroleofcysteine-rich61(Cyr61/CNN1)inproliferationandmigrationof bone marrow mesenchymal stem cells ( BMSCs ) .METHODS: The lentiviral vector carrying CCN 1 ( Lenti-GFP-CCN1 ) was constructed and then transfected into the rat BMSCs .The cells were divided into non-transfection group , transfection group ( transfected with Lenti-GFP-CCN1 ) and negative control group ( Lenti-GFP ) .The fluorescence intensity of the transfected BMSCs was observed under inverted fluorescence microscope .The effects of CCN1 on the proliferation and mi-gration of BMSCs were detected by MTT assay and scratch wound healing assay .RESULTS:The proliferation of BMSCs transfected with Lenti-GFP CCN1 had no significant difference compared with negative control group and control group .The width/thickness ratio of migrated BMSCs in wound healing was significantly higher in Lenti-GFP-CCN1 group than that in negative control group and control group (P<0.05).CONCLUSION:Exogenous CCN1 promotes the migration of BMSCs.

Objective To study the method of using phantom test for daily quality assurance of on board image(OBI) system. Methods The routine procedures of radiotherapy, including CT simulation, planning,setup,cone beam CT(CBCT) scan and kilovolt X-ray orthogonal film were carried out on a head phantom. The procedures repeated once a day in the following 10 days. The geometric errors of the phantom were recorded. Results The geometric errors of the phantom by CBCT were [0.06±0.11] cm, [0.03±0.05] cm, [0.07±0.07] cm and [0.03±0.10] cm in longitudinal, vertical, lateral and rotation directions, respectively. The geometric errors of the phantom by kilovolt X-ray orthogonal film were [ 0.04±0.10] cm, [0.03±0.05] cm, [0.08±0.06] cm and [0.05±0.05] cm, respectively. The differences of geometric errors of the phantom by CBCT and kilovolt X-ray orthogonal film were not significant(t = 0.44,P=0.667 in longitudinal direction ; t=0.00, P=1.060 in vertical direction ; t=0.34, P=0.735 in lateral direction; t=0.58,P=0.568 in rotation direction). Conclusions The OBI system of our accelerator is reliable and at excellent performance status. The method by using phantom test for the daily quality assurance of OBI system is easy and reliable.

Objective: To understand the current status of health related quality of life among primary and middle school students aged 9 to 15 years old in Henan Province, and to explore its relationship with negative emotions and social support. Methods: Between January and June 2016, 24 primary and middle schools were selected from 6 cities of Henan Province, and 5 867 primary and middle school students were included and completed the Pediatric Quality of Life Inventory Measurement, Stress Anxiety Depression Scale, Perceived Social Support Scale. Hierarchical linear regression analysis was used to examine the moderating effect of social support. Results: The total score of health related quality of life of primary and middle school students in Henan was (81.21±12.49). There were statistically significant differences in the quality of life among primary and middle school students with different gender, study period, family monthly income, subjective parental relationship and parental education ( P <0.05). Negative emotions were negatively correlated with quality of life ( r =-0.51, P <0.01) and social support ( r =-0.30, P <0.01), while social support was positively correlated with quality of life ( r =0.29, P <0.01). Regression analysis showed that negative emotional was negatively associated with quality of life ( β =-0.23, P <0.01), while social support was positively associated with quality of life ( β =0.16, P <0.01). The interaction of negative emotions and social support was negatively associated with quality of life ( β =-0.18, P <0.01). Conclusion Health related quality of life among 9-15 year old primary and middle school students in Henan province is satisfactory. Social support might buffer the negative impact of negative emotions including depression, anxiety and stress on quality of life of primary and secondary school students.

Objective: To investigate anxiety life interference among primary and middle school students in Henan Province and its influencing factors, and to provide scientific basis for health education in primary and secondary school students. Methods: By using cluster sampling method, 3 573 primary school students and 2 748 secondary school students in Henan Province were investigated with Child Anxiety Life Interference Scale(CALIS), Resilience Scale for Chinese Adolescents(RSCA), Perceived Social Support Scale(PSSS), Self-Esteem Scale(SES), General Self-efficacy Scale(GSES). Results: There were significant differences in anxiety life disturbance in primary and middle school students by gender(t=2.07, P=0.04), school level(t=-2.29, P=0.02), degree of anxiety(F=119.93, P<0.01), educational level of fathers (F=13.38, P<0.01) and educational level of mothers(F=9.65, P<0.01). The degree of life disturbance caused by anxiety was negatively correlated with mental resilience, social support and self-efficacy(r=-0.25, -0.09, -0.12, P<0.01), and was positively related to self-esteem(r=0.23). Mental resilience (β=-0.21) significantly negatively predicted anxiety interference with life, while self-esteem (β=0.13) and social support (β=0.06) significantly positively predicted anxiety interference with life. Conclusion The life of primary and middle school students is seriously disturbed by anxiety, and mental resilience is the primary psychosocial factor that affects the level of anxiety life interference among primary and middle school students.

Objective:To explore the relationship between the dark triad, basic psychological needs satisfaction and guilty proneness.Methods:Totally 595 college students were randomly selected from Zhengzhou University.They were tested with the dirty dozen(DD), the balanced measure of psychological needs scale(BMPN) and guilt-proneness-5(GP-5). SPSS 22.0 and AMOS 21.0 were used for data analysis, including descriptive analysis, correlation analysis and confirmatory factor analysis. Bootstrap measure was used for mediating effect test.Results:(1)The correlation analysis showed that the dark triad (29(21, 37)), Machiavellianism (4(4, 8)) and psychopathy(5(4, 9)) were negatively correlated with guilty proneness (20(16, 23)), and the correlation coefficients were -0.10, -0.22 and -0.18 respectively(all P<0.01). While narcissism (16(12, 21)) was not correlated with guilty proneness ( r=0.04, P>0.01). The satisfaction of basic psychological needs (56(54, 60)) was positively correlated with guilty proneness ( r=0.31, P<0.01). (2)The relationship between the dark triad and guilty proneness was partially mediated by basic psychological needs satisfaction, and the mediating effect accounted for 62.96%. Conclusion:The dark triad influences guilty proneness through basic psychological needs satisfaction.

Objective:To analyze the risk factors of subdelirium syndrome in Intensive Care Units (ICU) patients, build a risk prediction model and verify the prediction performance of the model.Methods:From July 2021 to February 2022, 443 ICU patients who were admitted to the Affiliated Hospital of Zunyi Medical University were selected by convenient sampling. The patients were divided into subdelirium syndrome group ( n=151) and non-subdelirium syndrome group ( n=292) according to whether they had subdelirium syndrome. The binomial Logistic regression was used to screen out independent influencing factors to construct a risk prediction model of subdelirium syndrome in ICU. The prediction effect of the model was tested by the area under the curve ( AUC) of receiver operating characteristic curve. According to the same standard, 147 ICU patients admitted to the Affiliated Hospital of Zunyi Medical University from March to April 2022 were selected for external validation of the model. Results:The risk prediction model of subdelirium syndrome in ICU was Y=-4.126+1.569×Acute Physiology and Chronic Health Evaluation (APACHE) Ⅱ score+1.261×pain score+1.643×total leukocyte+1.276×albumin +1.530 × operation or not. The internal validation of the model showed that the AUC was 0.878 [95% confidence interval (0.844, 0.912) ], the maximum Youden index was 0.614, the sensitivity was 74.8%, and the specificity was 86.6%. Hosmer-Lemeshow goodness of fit test showed that χ 2=2.743, P>0.05. The external validation of the model showed that the sensitivity was 92.6% and the specificity was 95.7%. Conclusions:This risk prediction model of subdelirium syndrome in ICU has good prediction performance, which can help medical and nursing staff identify high-risk patients with subdelirium syndrome in ICU as soon as possible.

‍ ObjectiveTo investigate the serum level of HBV RNA in untreated or treatment-experienced patients with chronic hepatitis B （CHB） and the correlation between serum HBV RNA level and the duration of antiviral therapy with nucleos（t）ide analogues （NAs）. MethodsA total of 300 patients with CHB who attended Department of Infectious Diseases in The First Affiliated Hospital of Shihezi University School of Medicine from February to July， 2022， were enrolled as subjects. Related clinical data were collected， and according to the duration of antiviral therapy， they were divided into untreated group with 73 patients， treatment duration ≤1 year group with 91 patients， and treatment duration >1 year group with 136 patients. Serum HBV RNA load， HBV DNA load， and HBsAg concentration were measured for all patients. The Mann-Whitney U test was used for comparison of continuous data between two groups， and the Kruskal-Wallis H test was used for comparison between multiple groups， further pairwise comparison using Bonferroni method； the chi-square test was used for comparison of categorical data； a Spearman correlation analysis was used to investigate the degree of correlation between various indicators. ResultsThe positive rate of HBeAg was 18.3%， and among the patients with negative HBV DNA， the patients with positive HBV RNA accounted for 44.1% （86/195）. There was a significant difference in the distribution of the serum levels of HBV RNA， HBV DNA， and HBsAg between the positive HBeAg group and the negative HBeAg group （Z=10.740， 6.300， and 7.280， all P<0.05）. There was a significant difference in the distribution of DNA level between the untreated group and the treatment duration ≤1 year group （P<0.05）； there was a significant difference in the distribution of HBV RNA and HBV DNA levels between the untreated group and the treatment duration >1 year group （P<0.05）； there was a significant difference in the distribution of HBV RNA， HBV DNA， and HBsAg levels between the treatment duration ≤1 year group and the treatment duration >1 year group （P<0.05）. The correlation analysis between the duration of antiviral therapy and the levels of HBV RNA， HBV DNA， and HBsAg showed that the duration of antiviral therapy had an extremely weak negative correlation with the levels of HBV RNA and HBsAg （r=-0.247 and -0.138， both P<0.05） and a strong negative correlation with the level of HBV DNA （r=-0.771， P<0.001）. There was a low degree of correlation between the serum level of HBV RNA and the serum levels of HBV DNA and HBsAg （r=0.360 and 0.442， both P<0.001）. Further stratified analysis showed that in the untreated group， there was a strong positive correlation between HBV RNA and HBV DNA （r=0.752， P<0.001） and a moderate positive correlation between HBV RNA and HBsAg （r=0.559， P<0.001）； in the treatment duration ≤1 year group， there was a low degree of positive correlation between HBV RNA and HBV DNA/HBsAg （r=0.396 and r=0.388， both P<0.001）； in the treatment duration >1 year group， there was a low degree of positive correlation between HBV RNA and HBsAg （r=0.352， P<0.001）. ConclusionSerum HBV RNA is negatively correlated with the duration of treatment with NAs， and the correlation of HBV RNA with HBV DNA and HBsAg gradually decreases with the increase in the duration of treatment. Therefore， it can be used as a supplementary indicator for monitoring the level of virologic response in CHB patients to a certain extent， with a relatively high accuracy in reflecting the level of viral replication in untreated patients.

Objective This study aimed to investigate the incidence and severity of surgical fear in patients with oral and maxillofacial tumors.Methods The survey participants were composed of patients with oral and maxillofacial tu-mors,who were scheduled to undergo surgery.A general information questionnaire,the Surgical Fear Questionnaire(SFQ),the Patient Health Questionnaire(PHQ)-9,and the Generalized Anxiety Disorder(GAD)-7 score were used for the investigation.Results A total of 203 patients were investigated.Among them,85.22%had fear of surgery.The me-dian score of SFQ was 20,and the quartile was(6,36).The patients were categorized into none,mild,moderate,and severe groups according fear level.Gender,diabetes,obvious discomfort before surgery,PHQ-9,and GAD-7 scores were the variables with statistical difference in each fear level.Multifactor analysis showed that women were more likely to have moderate and severe fear than men(OR=2.19,P=0.03;OR=2.72,P=0.01),patients with obvious preoperative discomfort symptoms were more inclined to have no fear(OR=4.73,P=0.02),and patients with diabetes were more likely to have severe fear(OR=3.33,P=0.02).The incidence rates of depression and anxiety were 31.03%and 24.63%,respectively.The incidence of anxiety and de-pression in patients with severe fear was 40.00%.Surgical fear was moderately positively correlated with anxiety(r=0.491,P<0.001)and depression(r=0.514,P<0.001).Conclusion The fear of surgery in patients with oral and maxillo-facial tumors is common and distributed in all levels.Medical staff can screen and assess patients with moderate and se-vere fear of surgery in accordance with the influencing factors and implement targeted interventions to reduce fear of sur-gery,anxiety,and depression on the basis of the source of fear.