Objective To investigate the point prevalence rate of social anxiety disorder (SAD) in Chengdu primary school, and analyze the influencing factors. Methods Data came from a large representative sample of Chengdu 1441 primary school students, who were selected by stratified cluster sampling methods. They then finished self-compiled questionnaire, strengths and difficulties questionnaire, Eysenck Personality Inventory (EPI) (age 7 ～ 15 ), Egma Minnen ay Bardndosnauppforstran (EMBU) respectively. And then they had the face to face interviews with the trained psychiatrists, according to development and well - being assessment ( DAWBA,Chinese Version). Results Among 1441 Chengdu primary students, 37 of them were diagnosed SAD,with a point prevalence of 2.6% totally. The point prevalence was different in each grades, for 2.7% in grade 3,4. 1% in grade 4,4.1% in grade 5,3.5% in grade 6( z= -2.3, P=0. 023 ). Compared with the normal counterparts ,the SAD students had statistically significance different in pro-socialization ( z = -2. 1, P = 0.035 ), affection(z=- 5.2, P = 0. 001 ) , moral conduct ( z = - 2.8, P = 0. 004 ), peer( z = - 3.1, P = 0.002 ), excessive interference of maternal education ( z = - 3.1, P = 0.002 ), introversion-extroversion ( z = - 2. 0, P = 0. 046 ), neuroticism ( z =- 3.5, P= 0. 000), concealing tendency ( z= - 2.3, P= 0.018 ). Logistic regression analysis showed that: grade,family location, habitual lifestyle over the past years more emotional problem and excessive interference of maternal education were related with SAD occurrence. Conclusion The point prevalence rate of social anxiety disorder among Chengdu primary students is 2.6% ,and it was influenced by a number of factors .

OBJECTIVETo assess the association of TPH2 gene polymorphisms with the response or remission to selective serotonin reuptake inhibitors (SSRIs) drugs during treatment of major depressive disorder.

METHODSFor 304 patients receiving SSRIs treatment for major depression disorder, 3 single nucleotide polymorphisms (SNPs) (rs1007023, rs1023990 and rs4570625) in the TPH2 gene were genotyped by MALDI-TOF mass spectrometry using a MassArray Analyzer 4 system. HAMD-17 was adopted as the primary rating tool to evaluate the severity of depression on the baseline and at the end of 1st, 2nd, 4th and 6th week of treatment.

RESULTSThe frequency of GG genotype/G allele for rs4570625 differed significantly with the frequency of TT and GT genotypes/T allele between responders and non-responders (P=0.013 and 0.007, respectively). Genotypic and allelic frequencies of the other polymorphisms did not differ significantly between the two groups (P>0.05). No association of TPH2 gene polymorphism with remission was found with the 3 SNPs.

CONCLUSIONThe polymorphisms of TPH2 gene may play an important role in response to antidepressant drug therapy.

ObjectiveTo assess the specificity of P50 auditory-evoked potential in schizophrenic patients with violent and aggressive behaviors， so as to provide objective biological markers for predicting violent behaviors of schizophrenic patients. MethodsA total of135 schizophrenic patients who met the diagnostic criteria of the International Classification of Diseases， tenth edition （ICD-10） were divided into aggressive group （n=70） and non-aggressive group （n=65） according to the assessment results of the Modified Overt Aggression Scale （MOAS）， meantime， another 60 healthy individuals matched for age and gender were set as healthy group. Then the P50 auditory-evoked potentials of all selected individuals were measured using EP/EMG system （MEB-9200， Nihon Kohden， Japan）. ResultsAmp S2 of the aggressive group was significantly higher than those of the non-aggressive group and healthy control group， with statistical differences ［（9.86±6.04）μV vs. （7.06±3.88）μV， P=0.004； （9.86±6.04）μV vs. （7.82±3.87）μV， P=0.031］. The proportion of S2/S1 ratio ≥0.5 was 72.88%， 43.86% and 30.00% in aggressive group， non-aggressive group and healthy group， which was the highest in aggressive group， with statistical differences （P<0.01）. The amplitude difference of P50 （S1-S2） of the aggressive group was lower than those of the non-aggressive group and the healthy control group， the differences were of statistical significance ［（4.35±9.39）μV vs.（9.89±8.48）μV， P=0.001； （4.35±9.39）μV vs.（13.42±9.81）μV， P<0.01］. ConclusionThe violent and aggressive behaviors in schizophrenic patients may be related to the sensory gating deficit.

This paper reported a case of psychosomatic medicine-based comprehensive treatment for a patient with gynecological malignant tumor suffering severe left hip pain after surgery and radiotherapy， with the aim of demonstrating the pathophysiological classification of pain arising from pathological damage， and providing references for the clinical study and practice of the psychosomatic multi-dimensional treatment mode for clinical "organic pain". This case suggested that the onset of pain， even in the presence of pathological damage， also involved a combination of pathological damage， somatic manifestations of anxiety and individual cognitive biases.

Objective: To assess the association of single nucleotide polymorphisms (SNPs) CHRNA4 gene with response to selective serotonin re-uptake inhibitors (SSRIs) for the treatment of major depressive disorder (MDD). Methods: For 304 patients receiving drug treatment for major depression, 2 SNPs, namely rs4522666 and rs4603829, of the CHRNA4 gene were determined by matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry. HAMD-17 was adopted as the primary rating tool to evaluate the severity of depression on the baseline and at the end of 1st, 2nd, 4th and 6th weeks treatment. Results: The frequency of GG genotype/G allele for rs4522666 differed significantly from that of TT and GT genotypes/T allele between responders and non-responders (P =0.015 and P=0.006, respectively). No significant difference was found in genotypic and allelic frequencies of rs4603829 between the two groups (P > 0.05). Conclusion SNPs of the CHRNA4 gene may play an important role in the response to antidepressant drugs among ethnic Han Chinese with MDD.