OBJECTIVE:To optimize the purification technology of total flavones from Ampelopsis grossedentala with macro-porous resins. METHODS:4 kinds of macroporous resins for the purification of total flavones from A. grossedentala were screened by using drug-loading amount,desorption rate,recovery and purification rate as indicators. Single factor test and central composite design-response surface methodology were used to optimized eluant mass fraction,adsorption time,flow rate of eluant,eluant pH and other factors of purification technology,and validation test was also conducted. RESULTS:D-101 macroporous resin was the best. The optimal condition was as follows as the concentration of sample solution 2 mg(by extract weight)/ml,the volume of sam-ple solution 1.1 BV,ethanol 86.0%,adsorption time 36.7 min,flow rate of eluant 3.81 BV/h,pH 7. In validation test,mass frac-tion of total flavones increased from 66.83% to 85.00% in validation test(RSD=0.15%,n=3),and were close to predicted val-ue(85.08%). CONCLUSIONS:Central composite design-response surface methodology is feasible and stable for the optimization of purification technology of total flavones from A. grossedentala with macroporous resins.

Objective To explore whether the process of oxidative stress exists in schizophrenia through analyzing changes of levels of malondialdehyde(MDA) and superoxide dismutase(SOD) ,and analyse the influence of age on SOD and MDA .Methods Serum levels of MDA and SOD in the schizophrenia group and healthy control group were detected by using enzyme‐linked immu‐nosorbent assay(ELISA) and were statistically analysed by using t test .Results Compared with the healthy control group ,there was an increase in serum level of MDA and a decrease in serum level of SOD in the schizophrenia group ,and had statistically signifi‐cant differences(P<0 .05) .Moreover ,statistically significant differences were found between subjects in the same age group of the two groups(P<0 .05) .Meanwhile ,serum levels of MDA and SOD were respectively compared in the two groups between different age groups ,it was shown that in the schizophrenia group and healthy control group there were no statistically significant differences of serum levels of MDA and SOD between subjects 50 years old and over and subjects younger than 50 years old(P>0 .05) .Conclu‐sion The process of oxidative stress exits in patients with schizophrenia ,and oxidative stress may be involved in the occurrence and progression of schizophrenia .Patients′age may not be significantly correlated with schizophrenia .

Objective To explore the effect of comprehensive intervention on social function and quality of life of patients with bipolar disorder (BD) in maintenance treatment period.Methods A total of 83 patients with BD were assigned into intervention group (n=41) and control group (n=42).Based on the original drug treatment,the intervention group was given comprehensive intervention,including BD health education,drug self-management,serf-monitoring of symptoms,interpersonal skills,coping and relaxation skills,learning to seek help from medical staff and others.The control group was treated with simple drug therapy.Before grouping,at the end of the third month and twelfth month,Young Mania Rating Scale (YMRS),Hamilton Depression Scale 17 items (HAMD17),Social Disability Screening Schedule (SDSS),Short Form 36 items Health survey Questionnaire (SF-36) were assessed.Results There were no differences in YMRS,HAMD,SDSS total score between the two groups before grouping(P＞0.05).The score of YMRS in the intervention group ((0.59±1.45) was lower than that in the control group(2.07±3.87) at the end of the 12th month,the difference was statistically significant (P=0.024).The score of SDSS in the intervention group (1.63± 1.77,0.78± 1.78) were statistically lower than that in control group (3.57± 1.78,2.74± 1.27) at the end of the 3th and 12th month(P＜0.01).There were statistically differences between the two groups in rolephysical(RP) (t=2.858,P =0.005),role-emotional (RE) (t =2.956,P =0.005),social function (SF) (t =4.163,P＜0.01),vitality (VT) (t =5.150,P＜ 0.01),mental health (MH) (t =2.830,P=0.007),general health (GH) (t=4.055,P＜0.01),difference in reported health transition (HT) (t=-2.092,P=0.042)at the end of 3th month.The differences were statistically significant in RE (t =3.290,P =0.001),SF (t =2.876,P =0.006),VT(t=5.831,P＜0.01),MH(t=4.839,P＜0.01),GH(t=3.752,P＜0.01) at the end of 12th month between the two groups.Conclusion On the base of medicine treatment,comprehensive intervention can effectively improve the social function and life quality of patients with BD in maintenance treatment period.

ObjectiveTo explore the characteristics of adolescent non-suicidal self-injury （NSSI） behavior， and to enable clinicians to further understand adolescents with NSSI behavior， so as to make better clinical diagnosis and intervention. MethodsFrom July 2022 to June 2023， 120 adolescent patients with NSSI behavior were selected from the outpatient department of our hospital by convenience sampling， and the general demographic data were collected by self-made general situation questionnaire. The characteristics and motivation of NSSI among adolescents with NSSI were analyzed by using the NSSI questionnaire and Ottawa self-injury inventory （OSI）. ResultsThe average age of the first NSSI in the adolescents was 12.90±1.233， and the most common was 13 years old. The most common site of NSSI was the lower arm or wrist （58.33%）， followed by the hand （27.5%）. The most commonly used NSSI was "intentionally cutting oneself" （68.33%）； The most common motivation for NSSI is emotional regulation. ConclusionThere are significant differences in gender among adolescents with NSSI behavior. The age of first NSSI is concentrated， and the highest incidence is in the 11‒14 years old. The common way of self-injury is cutting. NSSI is usually associated with the intention to relieve suffering and is characterized by high frequency， using variety of methods， and low mortality. Adolescents with NSSI often choose to implement NSSI with emotion regulation as the main function， including external emotion regulation and internal emotion regulation.