Bioinformatics analysis of peripheral blood circRNAs in female patients with major depressive disorder / 中华行为医学与脑科学杂志

Objective:To screen the circRNAs with differential expression between female patients with major depressive disorder and healthy women, and to explore the circRNAs that might be associated with depressive disorder through bioinformatics analysis.Methods:Using high-throughput sequencing screen differentially expressed circRNAs of female major depressive disorder patients, |log 2FC|≥1 and FDR<0.05 were used to determine whether circRNA had a difference in expression.According to the miRNA sponges function of circRNA, the online databases were used to predict miRNAs which may be targeted by circRNAs, and miRNAs related target genes were also predicted by the five most different circRNA.GO and KEGG pathway enrichment analysis were used to predict biological processes for the target genes and signaling pathways.Based on the results of high-throughput sequencing, biological processes and signaling pathways related to depression, circRNAs related to depression were screened. Results:Thirteen targeted miRNAs were predicted by the five most different circRNAs(hsa_circ_0020959, hsa_circ_0005959, hsa_circ_0033064, hsa_circ_0006862, hsa_circ_0027732), and multiple biological processes and signaling pathways related to depressive disorders were predicted by the target genes, such as glucocorticoid receptor signaling pathway, interleukin-7 response, nervous system development, Wnt signaling pathway, FoxO signaling pathway, thyroid hormone signaling pathway, neurotrophin signaling pathway, and so on.Conclusion:All the 5 circRNAs enriched biological processes or signaling pathways related to depressive disorder, among which hsa_circ_0005959, hsa_circ_0033064, hsa_circ_0006862 and hsa_circ_0027732 may be more closely related to female major depressive disorder.

Interaction of GNβ3 gene polymorphisms and environmental factors in susceptibility to major depressive disorder / 中华行为医学与脑科学杂志

Objective To explore the association between GNβ3 gene and depression,and to investigate the interaction of gene-environment(negative life events and childhood trauma) and potential possible pathogenesis of depression.Methods The sample of peripheral blood was collected from Chinese Northern patients(n=500) and controls(n=500).Snapshot technique was used to detect the genotype frequency and allele frequency of GNβ3 rs5443 polymorphism in cases and controls.The genotype and allele frequencies were analyzed by Chi-square test,the interactions of gene-environment were analyzed by Logistic regression.Results GNβ3 rs5443 genotype and allele frequencies were observed between patients and controls (x2 =20.249,P＜0.01;x2 =4.803,P＜0.05).There were genotype CC 102 and 158,genotype CT 280 and 217,genotype TT 118 and 125;allele C 484 and 533,allele T 516 and 467 between patients and controls,respectively.Logistic regression analysis showed that the interaction between rs5443 T+ and negative life events was associated with depression (P＜0.05,OR=1.957).In addition,individual carrying rs5443T+ genotypes and negative life events could increase risk of depression.Conclusion GNβ3 rs5443 is a possible susceptibility gene of depression.The interaction between rs5443 and negative life events is associated with depression.

Study of correlation between serum neuron-specific enolase and acute intracerebral hemorrhage / 临床神经病学杂志

Objective To study the correlation between serum neuron-specific enolase (NSE) and acute intracerebral hemorrhage (ICH). Methods The serum level of NSE was measured in 40 patients with acute ICH by ELISA and compared with normal control subjects. The relationship between serum NSE level and neurological deficit scores (NDS), volume and site of hemorrhage were analyzed.Results The serum level of NSE in ICH group increased within 48 hours, peaked at 3～5 d, obviously higher at 6～9 d and at 10～14 d compared with the control group (P