Effect of simvastatin on the reserve of heart function and endothelial function in X-syndrome / 中南大学学报(医学版)

OBJECTIVE@#To determine the therapeutic effect of simvastatin combined with traditional medicine on patients with X-syndrome, and on the reserve of heart function and endothelial function.@*METHODS@#Forty patients with X-syndrome were recruited from September 2006 to September 2007 and randomly divided into 2 groups (a simvastatin group and a control group). The control group received routine treatment including beta receptor blocker, calcium-channel blocker (CCB) and long active nitrate. The simvastatin group received simvastatin and the routine treatment. The clinical condition and exercise test (TET) were performed before and after the treatment.The levels of triglyeride (TG), total cholesterol (TC), low density lipoprotein (LDL-C), high density lipoprotein (HDL-C), endothelin-1 (ET-1) and nitric oxide (NO) were measured.@*RESULTS@#The frequencies of chest pain in the simvastatin group were lower than those in the control group. The levels of ET-1, ET-1/NO, TG, TC, and LDL-C were significantly decreased in the simvastatin group as compared with the control group after the treatment. The levels of HDL-C and NO were significantly increased in the simvastatin group as compared with the control group after the treatment. The time in TET was significantly increased in the simvastatin group as compared with the control group. The frequencies of chest pain were positively related to the level of ET-1/NO and negatively related to the time in TET.@*CONCLUSION@#Simvastatin is effective for patients with X-syndrome and may improve the endothelial function and the reserve of heart function.

Effect of BST on synapse protein SYT and SYN in the hippocampus of chronic stress depression in rats / 中南大学学报(医学版)

OBJECTIVE@#To explore the effects of Baisong tablets (BST) on synapse protein synatotagmin (SYT) and synaptophysin (SYN) of hippocampus in chronic stress depression in rats.@*METHODS@#Twenty eight male Sprague-Dawley rats were randomly allocated to 4 groups: a normal control group,a model group,a fluoxetine (FXT) group and a BST group. The normal control rats were fed in a natural environment. Rats of the model, FXT and BST groups were singly housed and given an chronic unpredicted sequence of mild stressors. The distribution and expression differences of SYT and SYN in the hippocampus of rats in different groups were investigated with in situ hybridization and immunoblotting.@*RESULTS@#Expressions of SYT and SYN in the hippocampus of model rats were significantly reduced, compared with that of the normal control (P<0.05); and the expressions of SYT and SYN were significantly increased in the hippocampus of the FXT and BST groups, compared with that of the model group (P<0.05).@*CONCLUSION@#The expressions of SYT and SYN protein and their mRNA decrease in the hippocampus of stress-model rats. BST can up-regulate their expression.

Comparative study on two methods of back propagation network test in TCM syndrome typing of depression / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To compare the effect of the two methods of back propagation network (BPN) test on TCM syndrome typing of depression.</p><p><b>METHODS</b>Test was carried out by two methods as following: (1) Cross train-test method: 1731 patients with depression typed to 5 syndrome types were randomly divided into 2 groups, and they were trained and tested in turn; (2) Round-Robin method: Test was conducted in an altered cycle mode, that is, in a cycle, one out of the 1731 patients were selected to be tested, while the others were trained, the next cycle started when the test on the selected patient was finished and another one for test was selected. In this way, one cycle after the other, until all patients had been tested.</p><p><b>RESULT</b>The total training sensitivity of the two methods was 97.9% and 98.2% respectively, and the total testing sensitivity was 72.7% and 74.2% respectively.</p><p><b>CONCLUSION</b>(1) The five TCM syndrome types of depression could be well differentiated by BPN, which is valuable for TCM syndrome typing in certain extent; (2) The sensitivity of Round-Robin method is slightly higher than that of Cross train-test method, but in comparison between them no remarkable significance was shown.</p>