[Visualization of research in treatment of vascular dementia by CiteSpace].

In light of the tremendous number of patients with vascular dementia in China, it is of great significance for the treatment of this disease to summarize related research focuses. In this study, articles on the treatment of vascular dementia, which were included in CNKI and Web of Science from January 1, 2012 to December 31, 2021, were analyzed. Specifically, CiteSpace 5.7.R2 was employed to visualize nationalities of authors, author affiliations, authors, keywords, and journals, and dissect the status quo and trend of research on the treatment of this disease. On this basis, the research focuses and evolution were elucidated. The findings are expected to serve as reference for the future research. Finally, 2 579 Chinese articles and 453 English articles were included. The annual number of published articles showed an upward trend. Authors from China published most papers and England had the highest centrality value. HU Yue-qiang and LIU Cun-zhi respectively published the most Chinese and English articles. Guangxi University of Chinese Medicine and Capital Medical University respectively topped the author affiliations in the number of published Chinese and English articles. Among the English journals, Anal Biochem and Stroke separately boasted the highest centrality value and the highest cited frequency. The analysis of keywords in the Chinese articles suggested that most studies on the treatment of vascular dementia focused on the observation of patients' mobility after treatment. Moreover, as for the therapeutic method, western medicine, as well as the Chinese medicine and acupuncture frequently attracted the attention of scholars. Basic research highlighted the oxidative stress, angiogenesis, and apoptosis. According to the analysis result of keywords in English articles on treatment of vascular dementia, the focus was the improvement of the memory function of patients with vascular dementia. As to the therapeutic method, drug therapy was frequently studied compared with other methods. The basic research focused on autophagy, nerve regeneration, and oxidative stress. This study concludes that the future research trend might be the combination of Chinese and western medicine in the treatment of vascular dementia.

[Research of characteristic spectrum of Qi deficiency syndrome based on literature mining technology].

As a basic syndrome of Chinese medicine, the study of characteristic syndrome spectrum of Qi deficiency syndrome is of great significance for the standardization of clinical diagnosis and modern material basis research. Suitable operators and algorithms were chosen to dig out the relationship between diseases, syndromes, symptoms, detection indicators and etiologist from the literature of Chinese clinical and basic research by literature mining method of frequency statistics, association rules and complex network analysis. Moreover, the information system of Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences was taken as the tools of data mining. The objective was to study the characteristic spectrum of Qi deficiency syndrome and to explore the characteristics of Qi deficiency syndrome. The results showed that the syndrome of fatigue, dietary were the main factors. The main pathogenesis of coronary heart disease, heart failure, chronic obstructive pulmonary disease, diabetes and stroke the disease were Qi deficiency. The clinical features of Qi deficiency syndrome were fatigue, shortness of breath and pale tongue. The biological indicators of Qi deficiency related were blood lipids, ECG, blood rheology, inflammatory reaction, NO, ET and NF-κB signalling pathway. The Qi deficiency syndrome on the level of syndrome spectrum was studied by the method of literature mining, which would provide reliable characteristic guidance data for the research on the substantial basis of Qi deficiency, the research on standard of diagnosis, establishment of syndrome model, the study on combination of disease and syndrome and the mechanism of prescriptions.

[Quantitative proteomic research of biological basis of Buyang Huanwu decoction therapy for cerebral infarction combined with Qi-deficiency and blood-stasis syndrome].

Chinese medicine Buyang Huanwu decoction (BYHW) is widely used in treating cerebral infarction combined with Qi-deficiency and blood-stasis syndrome, but the pharmacological basis is still not clear. This study aims to uncover the biological basis of BYHW therapy for cerebral infarction combined with Qi-deficiency and blood-stasis syndrome using label-free proteomic technology. Using Qi deficiency and blood stasis rat cerebral infarction model as the research object, the protein expression of rat brain tissue was compared among the sham operation group, the model group and the drug group. Quantitative analysis of the 3 groups of tissue samples detected 3 959, 3 996 and 4 055 proteins in the sham operation group, the model group and the drug group, respectively. Take model group as the control group, 391 proteins were identified to be upregulated or downregulated for more than 2 folds. Biological analysis and functional enrichment of the differentially expressed proteins revealed that BYHW may treat cerebral infarction combined with Qi-deficiency and blood-stasis syndrome through energy metabolism, nervous system and several signal pathways. This study preliminarily revealed the pharmacological mechanism of BYHW at the protein level, and provided a molecular basis for clinical treatment and traditional Chinese medicine research on cerebral infarction combined with Qi-deficiency and blood-stasis syndrome.

[Study on establishment of an animal model of Qi deficiency syndrome base on theory of over exertion leading to Qi consumption in traditional Chinese medicine].

Based on the theory of "overexertion leading to Qi consumption", this study aimed to compare the intervention factors of nervous and physical fatigue to establish a rat model of Qi deficiency syndrome, moreover, the systematic evaluationsystem was necessary with the standard of syndrome diagnosis of Qi deficiency. According to the clinical-mimetic principle the Qi deficiency syndrome animal model is established by the factors of sleep deprivation(SD) and exhaustive swimming(ES). Rats were randomly divided into four groups, normal group, SD group, ES group and compound group (exhaustion swimming complex sleep deprivation). The method of ES was force rats to swim until the exhaustion with 5% of weight, and the SD method by using multi-platform sleep deprivation of water environment randomly 14-16 h daily, and the complex set by using of two methods was combined. The movement distance, average speed, activity time and numbers into the central area were detected by open field test, swimming exhaustion time was detected by swimming exhaustion method, the cardiac function (LVEF, CO, FS, LVDd) was detected by echocardiography, tongue imaging analysis and pulsedistention as the index of tongue and pulse diagnosis, the content of ATP and ADP in serum was detected by ELISA, the blood coagulation indexes for blood stasis syndrome as the additional. These results indicated that independent activity, body weight and exercise capacity were decreased significantly, the neurological function injured significantly, heart function was decreased significantly, the tongue surface color was pale white, and the pulse distention was decreased significantly. The content of ATP decreased significantly and the ADP increased significantly. By the method of four-diagnostic evaluation system to compare the factors of SD and ES, the Qi deficiency syndrome animalmodel could be successfully established by sleep deprivation method.

[Preliminary study on two analytical methods for evaluation of traditional Chinese medicine syndromes model in rats with blood stasis due to sleep deprivation].

The comparison on evaluating blood stasis syndrome in sleep deprived rats was carried out by using R, G, B image analysis of Tongue and palm as well as auricle, palm surface laser Doppler flow perfusion. The experiment was performed by means of a small platform on the water environment for sleep deprivation. The rats were weekly weighed at fixed time, and their macroscopic signs were observed; and their tongue and palm images of the control and model group were respectively collected by the SLR camera at the 2nd, 4th and 6th week. Then the color saturation analysis was performed by means of proofreading with the standard colorimetric card. At the same time, the laser dopper flowmetry was used to analyze the perfusion of auricle and foot flow in rats. It turned out that there was no significant difference in the R,G,B value of the tongue and palm in rats between normal group and model group at the first stage(at the 2nd week), so were the perfusion of auricle and foot flow in rats. But at the second stage (at the 4th week), the R value of tongue in model group rats was obviously lower than that in normal group(P<0.01), and the other value (G,B) of tongue in module rats had a decease tendency, but there was no statistical significance. However, the perfusion of left and right auricle flow in model group rats were dramatically decreased as compared with the normal group(P<0.01); there was still no significant difference in the perfusion of the palm between two groups. It was found that R,G,B value in model group had a lower trend as compared with the control group of the tongue and palm images at the third stage (at the 6th week), but no statistically significant difference. The perfusion of left and right auricle flow in model group was constantly decreased as compared with the normal group(P<0.01).Right and left foot blood flow was lower than the normal group, but no statistically significant difference. We can safely conclude that the results of the R, G, B values of the tongue in rats could objectively reflect the characteristics of the rats with blood stasis syndrome, which were consistent with the diagnosis of clinical tongue image. As a method of microcirculation evaluation, the surface laser doppler perfusion of auricle can exhibit the characteristics of blood stasis in model rats, but also was more objective and reproducible. Therefore, the combination of R, G, B value of tongue as well as auricle laser doppler blood flow is more beneficial to the objective evaluation of index in the later study of traditional Chinese medicine blood stasis syndrome model.

[Comparative study of barium enema, computed tomography and magnetic resonance imaging in preoperative diagnosis of colorectal carcinoma].

OBJECTIVE: To compare the diagnostic value of barium enema (BE), computed tomography (CT) and magnetic resonance imaging(MRI) in primary colorectal carcinoma. METHODS: A total of 64 patients with suspected colorectal carcinoma received BE (n=39), spiral CT (n=31) and MRI (n=42). The detective results were compared with the surgical results. RESULTS: Among 64 patients, 54 cases were pathologically proved as colorectal carcinoma. The diagnostic sensitivity of BE,CT and MRI was 96.9% ,96.2% and 97.1% ,and the overall accuracy was 92.3% 83.9 % and 90.5% respectively. The overall accuracy of CT and MRI for tumor T staging was 73.1% and 82.9% respectively. CONCLUSION: BE can be considered as a primary approach for diagnosing colorectal carcinoma, CT and MRI be necessary diagnostic approaches. Combined BE with MRI is the best choice for diagnosing of colorectal carcinoma.