Effects of resveratrol on cognitive dysfunction and the expression of parvalbumin in depression model mice / 中华行为医学与脑科学杂志

Objective To examine the antidepressant effects of resveratrol (RSV),and its possible mechanism specialized on improving cognitive function.Methods Thirty-two C57BL/6J mice were randomly divided into four groups:Control,Model,Model+RSV and Model+NA+RSV groups.The mice were subjected corticosterone (20 mg/(kg · d)) intraperitoneal injection for 21 consecutive days except the control mice.From the 22nd to 42nd day,the mice in different groups received further treatment with vehicle/ RSV (400 mg/(kg · d),op)/NA (100 mg/(kg · d),ip)+RSV (400 mg/(kg · d),op).The sugar preference test,novel object recognition test,novel location recognition test and water maze test were applied to evaluate the cognitive effects of RSV on mice.Subsequently,the silence information regulation factor 1 (SIRT1),peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α),parvalbumin (PV) transcription and translation level were evaluated by RT-PCR and Western blotting.Results The sugar preference test showed that the depression model mediated by CORT injection was successfully established(F（1,30） =6,P=0.038).In in the novel object learning test,resveratrol significantly increased the proration on the frequency ((-0.20±0.37) vs (0.16±0.29))and duration((0.10±0.45) vs (0.62±0.29)) and decreased the proration on the distance((0.09±0.36) vs (0.55±0.27)).In the water maze test,resveratrol reduced the time((41±9)s;(26± 8) s) and distance ((295± 70) cm;(224±43) cm) to find the platform.All the results were accompanied with the increased expression of protein SIRT1 (F(3,29) =15.60,P＜0.01),PGC-1α(F(3,29)=7.51,P=0.0006) and PV (F(3,29) =17.87,P=0.0004).While pretreatment with nicotinamide,resveratrol could not rescue the cognitive impairment and could not reverse the iecreased expression level of protein SIRT1,PGC-1 α and PV.Conelusion Resveratrol can reverse the cognitive dysfunction of depressant mice,which may be achieved by activating the SIRT1/PGC-1α signaling pathway and increasing the transcription and protein expression of PV.

Generation of GABAergic interneuron-specific PGC-1α knockout mice / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To generate mice which are specific for peroxisomproliferator-activated receptor-γ coactivator-1(PGC-1α) knockout in the GABAergic interneuron.</p><p><b>METHODS</b>Conditional mice specific for PGC-1αwere introduced from the Jackson Laboratory, USA and initially inbred to obtain homozygote PGC-1αmice. The PGC-1αconditional mice were further crossed with Dlx5/6-Cre-IRES-EGFP transgenic mice to achieve specific knockout of PGC-1α in the GABAergic interneuron.</p><p><b>RESULTS</b>The offspring with specific knockout PGC-1α gene were successful for the generation of GABAergic interneuron, with the resulting genotype being PGC-1α.</p><p><b>CONCLUSION</b>The PGC-1αmice were obtained through a proper crossing strategy, which has provided a suitable platform for studying the function of PGC-1α in neuropsychiatric diseases.</p>

457 College Students' Experience of Psychological Abuse and Neglect in Childhood and Mental Health / 中国临床心理学杂志

Objective: To explore the relation of psychological abuse and neglect in childhood and college students’ mental health. Methods: Cluster sampling was used to select 457 college students studying in the Central South University and Hunan Commercial College as subjects. The general information questionnaire,Child Psychological Abuse and Neglect Scale (CPANS) and Symptom Checklist 90 (SCL-90) were completed by all subjects. Results: 45.30% of the respondents experienced psychological abuse or neglect in childhood. The total score and scores of each factor of SCL-90 of the group of psychological abuse combined with neglect was above those of psychological-abuse group,neglect-group and neither-abuse-nor-neglect-group. Additionally,ten factor scores and total score of SCL-90 of neglect-group were distinctly higher than those of neither-abuse-nor-neglect-group. The scores of each aspect and sub-scale of CPANS were significantly correlated with every factor and total score of SCL-90(P