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Objective To explore the time characteristics and neural mechanism of processing vertical spatial metaphor after the activation of moral disgust,by applying event-related potential technique (ERPs) and semantic priming paradigm.Methods Totally 22 healthy college or graduate students were randomly selected from a university in Henan Province.A dual word priming paradigm was used to present priming words (moral disgust words and non moral disgust words).Then the target words (neutral words above or on the bottom of the screen) were presented,and the subjects were asked to judge the font structure of the target words.Processing feature was explored by investigating the differences in EEG indexes of different combinations.Results The interaction between the starting stimulation of the correct rate and the target stimulation in the behavior data was significant (F=20.40,P＜0.01).In EEG data,compared with immoral aversion stimuli (P2:(0.81 ± 0.45) μV,N400:(-4.43 ± 0.58) μV),after the onset of moral abuses (P2:(-1.31 ± 0.40) μV,N400:(-5.04 ± 0.60) μV),the larger P2 (F =3.96,P＜ 0.05) and larger N400 (F =10.73,P＜0.01) amplitudes were induced in the related brain regions after the emergence of neutral words at the bottom of the screen.Conclusion The analysis of behavior and EEG data indicates that,compared with immoral disgust,moral abuses show a higher semantic connection with metaphorical moral,and metaphorical immoral shows lower semantic connection.The individual is more inclined to metaphorical morality to relieve and release the feeling of disgust and maintain a good self-moral image.
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Objective To analyze the influence of sleep deprivation on expression of serotonin receptor 1A(5-HT1A) and dopanine-2 receptor (D2R) gene and to explore the differences between different neurotransmitter pathways involved in sleep regulation through measuring the gene expression of 5-HT1A and D2R in regions of hippocampus,hypothalamus and striatum with different sleep deprivation models.Methods Sleep deprivation was performed to male SD rats of 10-week-old for 24 hours,48 hours and 72 hours respectively as the experimental group and a control group was taken for comparison.The expressions of 5-HT1A and D2R gene in regions of hippocampus,hypothalamus and striatum were detected through RT-PCR technique to analyze the influence of sleep deprivation on gene expression in different regions.Results Sleep deprivation had a significant effect on the gene expression of 5-HT1A in regions of hippocampus and striatum(F=56.203,P＜0.01 ; F=77.288,P＜0.01).The three experimental groups were all superior to the control group and the difference was of statistic significance(P＜0.05).In the hippocampus region,the expression quantity of the 72 hours group(0.618±0.054) was superior to that of the 24 hours group and of the 48 hours group(24 hours:0.404±0.023,P＜0.01 ;48 hours:0.455±0.042.P＜0.05).In the striatum region,the differences between the 24 hours group(0.413±0.033),the 48 hours group(0.464±0.034)and the 72 hours group(0.610±0.040) were all of statistic significance(all P＜0.05).Sleep deprivation had a significant effect on the expression of D2R gene in regions of hippocampus and striatum(F=74.708,P＜0.01 ; F=80.687,P＜0.01).The expression quantity of the three experimental groups in regions of hippocampus (24 hours:0.386±0.027,48 hours:0.318±0.014,72 hours:0.250±0.010) and striatum(24 hours:0.396±0.013,48 hours:0.349±0.017,72 hours:0.260±0.013) were all inferior to the control group.The differences were of statistic significance (all P＜0.05).There was a negative correlation between the gene expressions of 5-HT1A and D2R of rats of the three experience groups(all P＜0.05).Conclusion For the sleep deprivation rats,the gene expression of 5-HT1A rises while that of D2R falls in regions of hippocampus,hypothalamus,and there is a negative correlation between the expressions of the two genes.
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Objective To analyze the effect of clomipramine combine sleep deprivation on depression rat behavior and hippocampal CA3 neuron apoptosis.Methods Chronic unpredictable mild stimulation was used to establish 40 depression model rats.They were randomly divided into depression group,clomipramine group (5 mg/kg orally),sleep deprivation group (36 h continuous full sleep deprivation),chlorpromazine combination of sleep deprivation group,and then selected 10 rats as control group.Open-field test and water maze test were used to test rats' behavioral change after 28 days intervention.RT-PCR,Western blot were used to detect the GDNF and Bcl-2 expression of hippocampal CA3 neurons.TUNEL assay was performed to test hippocampal CA3 neuron apoptosis ratios in each group.Results Open-field test level score,vertical score and latency of combination group were (75.6±7.3),(26.4±4.3),(1.1±0.2),and showed no significant difference with those of control group((79.4 ±6.8),(28.6±5.7),(1.0±0.4)) after 28 d intervention (P＞0.05),while the level score,vertical score were significantly higher than those in other three groups(P＜0.05),and the latency period was significantly lower than that in other three groups (P＜0.05).The combined group showed a trend of gradually shortened in water maze escape latency.GDNF,Bcl-2 expression of control group and combined group was significantly higher than those in other three groups (P＜0.05),while the difference between the two groups was not statistically significant (P＞0.05).Sleep deprivation group' apoptotic rate was the highest (55±6)％,significantly higher than the control group and the combination group ((14±3) ％ and (19±4)％).Conclusion Clomipramine combined sleep deprivation can improve the ability of rat model of depression and suppression of acts of hippocampal CA3 neuron apoptosis,and its effect may be related to increased hippocampal CA3 GDNF,Bcl-2 level.
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ObjectiveTo investigate the effects of exploratory behaviors on depression-like rats treated with sleep deprivation,and the mechanism of the point of brain-derived neurotrophic factor (BDNF).Methods30 Sprague-Dawley (SD) rats were randomly divided into normal group,depression group and deprivation group,and the depression model of rats were established by chronic unpredictable stress.At the day of 6th,12th,18th,24th the deprivation group was deprived sleep for 24h by the method of multi-platform water environment,and then all groups were on the open-field test.The approach of immunohistochemistry and retrovirus polymerization chain reaction measured BDNF expression level in the hippocampal neurons.ResultsThe four open-field test scores of the day of 6th,12th,18th,24th indicated that the scores of deprivation group was a low-to high trend,and at the open-field test of the 24th day was significantly different compared with depression group(P ＜0.01 ),while no significant difference was found compared with the normal group (P ＞ 0.05 ).Compared with depression group( gray level:108.53 ± 4.45,positive area rate:0.0747 ± 0.0262 ),BDNF protein expression was significantly higher in the hippocampal neurons of deprivation group( gray level:116.00 ±5.61,positive area rate:0.2034 ± 0.0352 ) (P ＜ 0.05 ),while there was no significant difference in normal group ( gray level:117.27 ±10.66,positive area rate:0.2252 ±0.1143 ) (P＞0.05 ).Results of RT-PCR were in accord with that of immunohistochemistry.ConclusionSleep deprivation can improve the exploratory behaviors of depressive rats and the mechanism may be related to the increasing concentration of BDNF in hippocampal neurons.
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Objective To explore the changes of Bcl-xl levels and activities in hippocampus resulting from sleep deprivation, and then to reveal the mechanism for rapid antidepressant aroused by sleep deprivation.Methods 40 SD rats were randomly divided into normal control group, chrinic stress group, sleep deprivation group and tank contral group.10 rats in each group.The depression animal model was established by chronic mild unpredictable stress(CUMS) methods.Sleep deprivation was preformed by the modified multiple platform method ( MMPM ).The animal model and the effect of antidepressant were evaluated by the open field test.The expression levels of Bcl-xl were separately observed by immunohistochemical technology in hippocampus CA1 ,CA3 and DG.Results 1.Compared with the normal control rats, ambulation ( 35.30 ± 18.77,81.30 ± 18.41, P ＜ 0.01 ) and rearing (20.50 ±4.84,27.70 ± 8.19, P＜0.05 ) increased ,and the stopping time in the center decreased (4.60 ± 1.35,2.20 ± 1.55, P ＜ 0.01 ) in the CUMS depressant animal model.2.The Bcl-xl average values of optical density (OD) in hippocampus CA1 ,CA3 ,DG of the model group was lower than that of the normal control group significantly (0.1356 ±0.0224,0.1389 ±0.0250,0.1457 ±0.0162;0.1725 ±0.0327,0.1734 ±0.0261,0.1768 ±0.0271; P＜0.01 ) ,and that of the sleep deprivation group was higher than that of the model group (0.1621 ± 0.0128,0.1603 ± 0.0137,0.1625 ± 0.0192 ;0.1356 ± 0.0224,0.1389 ± 0.0250,0.1457 ± 0.0162; P ＜ 0.05 ).Conclusion Rats showed depressive behaviors after 21 days stresses,while 72 hours sleep deprivation could reverse this effect.The up regulation of the expression and phosphorylation of Bcl-xl by sleep deprivation may participate in the antidepressant-like effect of sleep deprivation.
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BACKGROUND: Coronary heart disease (CHD) is commonly seen psychosomatic disease of cardiovascular system. Its behavioral characteristics have been closely concerned by scholars at home and abroad. Chinese daoistic cognitive therapy works well in patients with anxiety, but its application in the field of psychosomatic disease needs further development.OBJECTIVE: To probe into the interventional effect of Chinese daoistic cognitive therapy on type-A behavior of patients with coronary heart disease (CHD).DESIGN: A randomized controlled grouping observation.SETTING: Department of Psychology, Xinxiang Medical College.PARTICIPANTS: Totally 206 patients who were retired and received treatment in the Staff Hospitals of Changsha University of Science and Technology and Hunan University between August 2002 and January 2004were recruited. They were randomly divided into psychotherapy group (n=104)and control group (n=104).METHODS: Patients of control group underwent simple drug treatment and those of psychotherapy group underwent drug treatment + daoistic cog nitive therapy. Drug and dosage:①nifedipine 10 mg/d.②betaxolol 25-50mg/d. ③nitrendipine 20-30mg/d. ④captopril 25-50 mg/d. Dapistic cognitive therapy was divided into four parts according to operation procedure: Loose and calm technique, the technique of soft movement, the meeting of analyzing the cause of CHD and the records of health care and what one has learned from study. Psychotherapy group received 3-month treatment with Chinese daoistic therapy and 6-month follow-up and control group only received medical treatment. Both groups were test on a type-A behavior questionnaire (TABQ) and a mental detachment scale. TABQ included three-subscales: L scale is for measuring lie; TH scale for measuring time hurry and CH is for competition hostility. Subjects, whose value of L was equal to or beyond 7, were excluded. Subjects were considered as patients with type-A behavior if their TH+CH value was equal to or beyond 28. The Mental Detachment Scale was used to measure patients's outlook of value concerning degree of mental detachment on social life, family life and personal life and so on. The higher the scores, the higher the patients'mental detachment; the lower the scores, the lower degree the patients'mental detachment. MAIN OUTCOME MEASURES: Comparison of scoring of TABQ and mental detachment scale and incidence of type-A behavior before and after therapy in patie nts between two groups.RESULTS: Twelve patients of psychotherapy group and 15 patients of control group lost due to going out or other matters, 1 patient of control group died and finally, 92 patients of psychotherapy group and 87 patients of control group entered the stage of result analysis. ①The scores of TABQ after 3 or 6-month treatment were significantly lower in the psychotherapy group than in the control group, with significant difference [(20.8±5.8),(24.2±5.3) scores,t=4.072,P=0.000];[(21.2±5.7), (24.2±4.8) ,t=3.809, P=0.000]. The scores of TABQ were significantly decreased after 3-month intervention in comparison with before intervention, and there was no furincidence of type-A behavior after 3 or 6-month therapy was significantly lower in the psychotherapy group than in the control group, with significant difference (24/26, 35/40, x2=1.526, P=0.017); (26/28, 35/40, x2=1.463,therapy was significantly higher in the psychotherapy group than in the control group, with significant difference [(28.7±4.4), (27.2±3.6) scores,t=8.506, P=0.000]; [(32.6±3.1), (27.0±3.4) scores, t=11.371, P=0.000].The scores of Mental Detachment Scale were significantly increased after 3-month intervention in comparison with before intervention,and there was no further change of scores of TABQ after 6-month follow-up (P ＞ 0.05).② The incidence of type-A behavior after 3 or 6-month therapy was significantly lower in the psychotherapy group than in the control group, with significant difference (24/26, 35/40, x2=1.526, P=0.017); (26/28, 35/40, x2=1.463,P=0.021 ).③ The scores of Mental Detachment Scale after 3 or 6-month therapy was significantly higher in the psychotherapy group than in the control group, with significant difference [(28.7±4.4), (27.2±3.6) scores,t=8.506, P=0.000]; [(32.6±3.1), (27.0±3.4) scores, t=11.371, P=0.000].The scores of Mental Detachment Scale were significantly increased after 3-month intervention in comparison with before intervention (P＜ 0.01) and scores of Mental Detachment Scale after 6-month follow up was further increased (P ＜ 0.05).CONCLUSION: Daoistic cognitive therapy can decrease type-A behavior,increase clinical therapeutic effect and improve prognosis of patients with CHD.
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Objective: To study the relationship of the mood and behavior types in patients with coronary heart disease, to supply the foundation of psychotherapy in patients with coronary heart disease. Methods: 81 patients with coronary heart disease and 59 normal healthy people were evaluated by Type A Behavior Scale, Hospital anxiety and depression scales. To analyse the relationship between the behavior type and mood disorder. Results: The rates of Type A behavior and anxious mood disorder were significantly higher in the study group than the contrast group (P
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Objective: To explore the effect of psychotherapy on relapse and reoccurrence of depression. Methods: 85 depressive patients were divided into psychotherapy group and control group. One year later, SDS、HAMD、MMPL scales and P300 potentials test were used to evaluate the effect.Results: The scores of SDS、HAMD scales of the psychotherapy group were significant lower than those of the controls(P
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Objectives: To study the difference of Plasminogen Activation System in patients with coronary heart disease by different behavior types. Methods: 81 patients with coronary heart disease and 59 normal control were evaluated by Type A Behavior Scale. t-PA and PAI-1 activities of both groups were also measured. Results: The activity of PAI-1 was higher and t-PA was lower in patients with coronary heart disease, and this difference is also found between Type A and Non Type A patients. Conclusion: The activity of t-PA is decreased and PAI-1 increased in patients with CHD, this phenomenon are also related to Type A Behavior traits.
