BackgroundNon-suicidal self-injury （NSSI） behavior has become a global public health concern affecting the physical and mental health of adolescents. The experiential avoidance model posits that childhood trauma contributes to NSSI behavior through the mediating pathway of emotional dysregulation. However， existing research has predominantly focused on isolated psychological or social factors， with limited attention to their interactive effects of emotional dysregulation and social anxiety， both of which fall within the psychosocial domain. ObjectiveTo examine the relationship between childhood trauma and NSSI among adolescents， and to analyze the mediating role of emotional dysregulation and the moderating role of social anxiety， so as to provide evidence for targeted interventions for NSSI behavior of adolescents. MethodsA total of 282 adolescent inpatients who consecutively admitted to the Department of Psychiatry of Guangdong Provincial People's Hospital from March to December 2025 and met the Diagnostic and Statistical Manual of Mental Disorders，fifth edition（DSM-5）criteria for NSSI were enrolled as study participants. Participants were assessed using the general information questionnaire， the Adolescent Self-Harm Questionnaire， the Childhood Trauma Questionnaire （CTQ）， the Difficulties in Emotion Regulation Scale （DERS）， and the Social Anxiety Scale for Adolescents （SAS-A）. Pearson correlation analysis was used to examine correlations among scale scores. model 4 and model 58 of the Process 4.1 were used to test the mediating effect of emotional dysregulation and the moderating effect of social anxiety， respectively. ResultsCTQ score was positively associated with score of the Adolescent Self-Injury Questionnaire （r=0.279， P<0.01）. Emotional dysregulation significantly partially mediated the relationship between childhood trauma and NSSI behavior， with a mediating effect of 0.112 （95% CI： 0.043–0.208）， accounting for 40.14% of the total effect. Social anxiety moderated the association between childhood trauma and emotional dysregulation，the effect value was 0.102 （95% CI： 0.008–0.196）， as well as the relationship between emotional dysregulation and NSSI behavior， the effect value was 0.130 （95% CI： 0.033–0.226）. ConclusionEmotional dysregulation may mediate the relationship between childhood trauma and NSSI behavior among hospitalized adolescents， while social anxiety moderates both the first and second paths of this mediating process. ［Funded by Guangdong Medical Science and Technology Research Fund Project （number， A2022538）］

Objective:To explore the intervention effect of different modes of ankle pump exercise on femoral vein peripherally inserted central catheter (PICC) catheter-related thrombosis in patients with lung cancer.Methods:Using the convenient sampling method, 96 cases of lung cancer patients with femoral vein PICC catheterization admitted to Xiangya Hospital of Central South University from January 2019 to October 2020 were set as the control group and 97 cases of lung cancer patients with femoral vein PICC cannula from October 2020 to October 2021 were set as the observation group. They adopted the comfort angle ankle pump exercise and the maximum angle ankle pump exercise mode, respectively. The differences in the incidence of catheter-related thrombosis, the incidence of unplanned extubation, fatigue score and catheter indwelling time were compared between the two groups.Results:The incidence of catheter-related thrombosis and unplanned extubation in the observation group were lower than those in the control group, and the differences were statistically significant ( P<0.05) . The fatigue score and catheter indwelling time of the observation group were higher than those of the control group, and the differences were statistically significant ( P<0.05) . Conclusions:The maximum angle ankle pump motion mode can reduce the incidence of catheter-related thrombosis and unplanned extubation of femoral vein PICC catheterization in patients with lung cancer and improve the catheter indwelling time, but it is easy to cause patient fatigue, so clinical promotion and use should consider the patients' tolerance.

Objective To investigate the differences of cognitive functions among ultra high-risk individuals(UHR),first-episode schizophrenia patients and healthy controls.Methods Twenty four participants meeting clinical inclusion criteria for initial prodromal states (IPS) selected from the first degree relatives of schizophrenia,23 first onset schizophrenia patients from the same family with UHR as well as 30 healthy controls were assessed with a comprehensive neuropsychological test battery including Trail Making Test (TMT),Stroop color word test and the Continuous Performance Test (CPT) to test the speed of information processing and sustained attention ability.Results ①The time of the Trail Making Test in UHR ((45.12±14.87) s) was shorter than first-episode schizophrenia patients((60.43± 19.30)s),but longer than healthy controls((27.13±7.74) s).The whole score of the Stroop color word test in UHR (28.46± 7.87) was higher than first-episode schizophrenia patients (18.78± 6.86),and lower than healthy controls (43.40±9.64).The score of the Continuous Performance Test in UHR (1.86 ± ± 1.05) was significanly higher than first-episode schizophrenia patients(1.17±0.67),but lower than healthy controls (2.63±0.67),and all these differences were significant (P＜0.01).②Taking age,years of education,occupation status,marital status and the Positive and Negative Syndrome Scale (PANSS) scores as the covariance,the analysis of covariance showed TMT and Stroop color word test were still statistically significant.Conclusion There are cognitive function changes in individuals at ultra high-risk for psychosis,lying between first-episode schizophrenia cases and healthy controls.

Objective To investigate the status of uncertainty in illness and social support among patients with post-traumatic brain syndrome (PTBS) and analyze their correlation.Methods One hundred and fourteen patients with PTBS were selected by convenience sampling and assessment.They were evaluated by Chinese disease Mishel Uncertainty in Illness Scale (MUIS) and Social Support Assessment Scale (SSAS) and the correlation of two scales was analyzed.Results MUIS total score was(135.23±19.29) scores with a median of 128.74 scores and SSAS total score was (43.14±5.54) scores with a median of 42.00 scores in patients with PTBS.Among 114 patients with PTBS,regarding ambiguity score was negatively correlated with objective support,subjective support,utilization degree of support and SSAS total score,r=-0.301,-0.374,-0.521,-0.509,complexity score was negatively correlated with objective support,sub-jective support,SSAS total score and utilization degree of support,r=-0.367,-0.326,-0.355,-0.533,both lack of information and regarding unpredictability score were negatively correlated with utilization degree of support,r=-0.376,-0.330,MUIS total score was negatively correlated with objective support,utilization degree of support and SSAS total score,r=-0.284,-0.424,-0.305.Conclusion There is high uncertainty of PTBS patients;increase of patients' social support will be good for decreasing the ambiguity and com-plexity among patients' uncertainty;promotion of patients' utilization degree of support will help to reduce patients' lack of information and unpredictability.

Voxel based morphometry (VBM) methods are used to detect the difference in brain structures between the posttraumatic stress disorder (PTSD) sufferers and the normal controls. Standard VBM method can detect the difference of the gray matter or white matter densities while the optimized VBM method can detect the difference of gray matter or white matter volumes in the whole brain. The experiments showed that for the patient group, gray matter density or volumes significantly increased in the right frontal lobe, middle frontal gyrus, vermis, left caudate and parietal lobe, compared with the normal controls. However, in the left frontal lobe and middle frontal gyrus, gray matter density significantly decreased. There is no significant difference in white matter between the two groups. These results are consistent with those of the fMRI, which not only provide the evidence for further study of the pathogeny in PTSD but also validate the efficiency of the VBM methods for detecting the difference in the whole brain structure.
Adult ; Brain ; pathology ; Female ; Frontal Lobe ; pathology ; Humans ; Image Processing, Computer-Assisted ; Magnetic Resonance Imaging ; Male ; Parietal Lobe ; pathology ; Stress Disorders, Post-Traumatic ; pathology

Three key ethical issues in neurotherapeutics research are discussed: the ethical challenges arising from changes in the financial incentive of researchers and their institutions,risk-benefit analysis on testing innovative interventions,and the research for informed consent.