Effect of Salidroside on Learning and Memory Abilities and Expression of p75NTR Signal Transducers and Aβ in Hippocampus of AD Rat / 医药导报

Objective To study the effect of salidroside (Sal) on learning and memory abilities and expression of p75NTR signal transducers and Aβ in AD rat hippocampus.Methods Totally,ninety-six male SD rats were randomly divided into sham-operation group,model control group,Sal low,medium and high dose group,Hup-A group (16 rats in each group).Except for sham-operation group,AD model in the other group was established by slowly injecting 1μL(10 μg)Aβ1-40 in tobilateral hippocampal CA1 area.Sham-operation group was given the same volume of 0.9％ sodium chloride solution.Sal low,medium and high dose group took orally as early as 24 h postoperatively with salidroside 25,50,100 mg· kg-1 for 21days,while Hup-A group took 50 mg kg-1 of Hup-A orally.The same volume of 0.9％ sodium chloride solution was administrated in shanmoperation group and model control group.After administration,the learning and memory function of rats were tested by Morris water maze.The contents of Aβ in serum and hippacampus were determined by ELISA,and protein expression of p75NTR and p-JNK in the hippocampus of the rats were measured by ELISA.Results Compared with model control group,the latent time in water maze training of Sal low,medium and high dose groups were significantly shortened (P ＜ 0.05 or P ＜ 0.01),the number of times of crossing platform of Sal low,medium and high dose group was significantly increased.The contents of Aβ in the hippocampus and the protein expression levels of p75NTR and p-JNK in the hippocampus of Sal low,medium and high dose group were decreased significantly (P ＜ 0.05,P ＜ 0.01).Conclusion Salidroside has protective effects on learning and memory consolidation of dysmnesia rats caused by Aβ.Its mechanism might be related to inhibition of p75NTR regulation pathways for Aβ,reducing the neurotoxic effect of Aβ,so as to reduce cell apoptosis of hippocampus neuron.

The Relationship of the Mood and Behavior Types in Patients with Coronary Heart Disease / 中国临床心理学杂志

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

Epidemiological Methods in Studies of Illicit Drug Use / 中国临床心理学杂志

Several kinds of epidemiological methods in studies of illicit drug use were described in this article.These include case-finding,capture-recapture,privileged access interviewer,mortality multiplier method and nomination method.

The Relationship between Behavior Types and Plasminogen Activation System in Patients with Coronary Heart Disease / 中国心理卫生杂志

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.