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OBJECTIVE:To explore the application of topic model in the study of type 2 diabetes treatment plan. METHODS:Clinical data of 650 inpatients with type 2 diabetes in our hospital during Jan. 2012-Jun. 2016 were analyzed retrospectively. The data of clinical diagnosis,lab indexes and clinical drug use were exchanged,summarized and merged by MATLAB R2014a software. Latent Dirichlet allocation and author topic model were adopted to extract the typical topics with topic probability value>0.1,and the topics was described by the complications with cumulative probability value>0.5. RESULTS:A total of 62 complications words,16 abnormal laboratory indexes groups and 20 treatment plans were obtained. A total of 4 typical topics were excavated(cumulative probability values for the first few complications were 0.8786,0.8247,0.8215,0.7536;topic probability value were 0.3364,0.2773,0.2035,0.1176,respectively) and were mainly characterized by peripheral neuropathy,peripheral vascular disease,abnormal lipid metabolism and microvascular lesions;abnormal lab indexes groups met the above characteristics. The complications with high distribution rate included diabetic peripheral neuropathy (0.5787), hypertension (0.3631),atherosclerosis (0.2789),hyperlipidemia (0.4578) and diabetic retinopathy (0.3143);main drugs included Insulin aspart injection,Insulin injection,Methylcobalamin dispersible tablets,etc. CONCLUSIONS:The complications of type 2 diabetes are characterized by peripheral neuropathy,peripheral vascular disease,abnormal lipid metabolism and microvascular lesions. The medication rules with clinical significance can be extracted from the clinical data by topic model.
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Objective:To establish the optimal extraction technology of Xiaoer Yinqiao granules by orthogonal test. Methods:The effects of water amount,extraction duration and extraction times were investigated by orthogonal design using the contents of forsythia-side A and chlorogenic acid as the indices. Results: The optimum extraction process was as follows: adding 8-fold amount of water, and extracting 1. 5 h for the first time, and then adding 6-fold amount of water, extracting 1 h for the second and third time, respective-ly. Conclusion:The extraction technology is simple, reasonable and reliable.
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OBJECTIVE:To determine the blood concentration of amphotercin B by RP-HPLC method.METHODS:The determination was performed with C 18 as the chromatographic column.0.005mol/L EDTA-2Na-methanol(3∶7)was taken as the mobile phase with the flow rate at1.0ml/min and the detection wavelength set at380nm.RESULTS:The linear con?centration range for amphotercin B was0.125～4.0?g/ml(r=0.9998).The average recovery rate for the3(high,middle and low)concentrations of amphotericin B was93.5%.Both the intra-day RSD and the inter-day RSD were less than3.6%.CONCLUSION:The method is simple,fast,specific and reproducible,which can be used for the clinical monitoring of the blood concentration of amphotericin B.