1.Determination of Vancomycin and Norvancomycin in human serum by HPLC
Chinese Journal of Biochemical Pharmaceutics 2015;(11):172-174
Objective To establish HPLC method for fast, effective, simultaneous determination of Vancomycin and Norvancomycin in serum. Methods The separation was achieved on the Hypersil ODS2(250 mm ×4.6 mm,5μm)with methanol-acetonitrile-a mixture of potassium phosphate (9.5:2.5:88) as the mobile phase.The flow rate was 1.0 mL/min.The UV detecting wavelength was 280 nm.The temperature of the column was 35 ℃. Vancomycin and Norvancomycin were used as the internal standard for each other .Results Vancomycin and Norvancomycin blood concentration were in well linearity in the range of 1.25-100μg/mL,R2 =0.9996.The average method recovery rate of three concentrations were 96.88%,99.50%,105.01%respectively, the average method recovery rate of three concentrations were 94.40%,103.90,103.81%respectively, the intra-day and inter-day RSD were less than 5%.Conclusion The HPLC method is proved to be simple,sensitive, accurate and precise in which little blood sample is taken, thus it is suitable for the therapeutic drug monitoring(TDM) and pharmacokinetic study of Vancomycin and Norvancomycin.
2.The Use of Fluoxetine in Neurologic Disease
Herald of Medicine 2001;(2):96-97
Objective:To introduce the use of fluoxetine in neurologic disease,especially in epilepsy.Method:We used fluoxetine as a supplement antiepileptic drug in 25 patients who couldnt be controlled yet by routine antiepileptics. A long term follow-up with these cases was carried out.Results:Most patients got better outcome.Conclusion:Fluoxetine would be an important supplement antiepileptic drug and have value for further clinical and experimental research.
3.Theoretical model of stress response to critical incidents
Chinese Journal of Tissue Engineering Research 2006;10(2):164-166
BACKGROUND: Critical incidents are natural and man-made disasters arising suddenly, which are beyond the ability of the individuals to resist or control. In the situation of stress, individuals feel stuck, and are unable to control the situation.OBJECTIVE: To confirm the assessment model of stress response to critical events and the interventional effect of social support, general self-efficacy and coping efficacy.DESIGN: A randomized sampling, questionnaire-based investigation.PARTICIPANTS: We selected 1016 college students of 17 provinces or cities including Beijing, Guangzhou, Hefei, Jilin, Jiangsu, Jiangxi , Liaoning, Sichuan, Inner Mongolia, Shandong , Shanghai, Hebei, Tianjin,Wuhan, Zhejiang , Chongqing and so on as subjects. Totally 708 college students selected from the above regions received the same survey one year later.METHODS: Depression and anxiety state of the subjects were investigated with Center for Epidemiological Studies Depression Scale (CESD)and Anxiety Inventory (SAS) during SARS. Social support condition was investigated with Social Support Rating Scale, authorized by Xiao Shuiyuan. Related items were amended considering used among college students. The subscale was integrated into 3 subscales including group-support, friend-support and social support utilization. One year later, stress response to SARS was investigated again with self-made coping efficacy scale, self-esteem scale and self-efficacy scale and SARS Stress Response Questionnaire, which included 13 items measuring the students in three aspects: cognitive evaluation to SARS epidemic, such as "I believe human beings can conquer SARS in the end"; panic to SARS, like "worrying about SARS sweats me and makes me feel shiver sometimes"; and defense response to SARS, as "In order to prevent SARS, I have to wear respirator in the public". As far as cognitive, panic emotion and defense behaviors were concerned. The coping efficacy developed by the author covered 18items, such as "I'm afraid that I can not deal with things", "I have enough confidence to conquer any difficulty", and namely as friability, confidence and intelligence.RESULTS: ① The two investigated results were compared through assessment of covariation. There was a significant difference in cognitive condition, panic emotion and defense behavior; that was to say, the stress response to SARS had been obviously relieved . ② Social support and SARS stress response model x2=8.654,df=4,P=0.07;criterion fit index NFI= 1, RFI =0.997 and IFI =1, RMSEA=0.034. ③self-efficacy confirmative factor analysis showed the following: x2=0.536,df=2,P=0.765;x2/df=0.268, NFI=1, RFI=1, IFI=1 and CFI=1, RMSEA=0.000. ④The discriminating and convergent validity of coping efficacy questionnaire was as follows. The coefficient was 0.633 with general efficacy questionnaire, 0.530 with self-respect (SES), 0.481 with CESD, 0.387 with anxiety (SAS), and -0.003 with living events. ⑤ A structural equation model about general self-efficacy, coping efficacy and SARS stress response was established: x2 =2.722 df=3, P=0.437; NFI=1, RFI=0.999,IFI=1, CFI=1, RMSEA=0.068. The model fitted well. According to the data, coping efficacy affected SARS stress response negatively (the coefficient was -0.59)CONCLUSION: ① The three-dimensional assessment model assessed the stress response to critical incidents including cognitive adjustment, emotional response and behavioral tendency. The three-dimensional model stood the test while assessing SARS stress response. Compared with the assessment of emotional disorders, such as depression and anxiety, the model was more sensitive. ②Social support played a vital role in the stress response to critical incidents as a buffer or a regulator. It showed more influence on emotional disorders than on SARS stress response. ③Coping efficacy was a measurable intervening variable, which deserves more attention to in the stress response to critical incidents. Compared with general self-efficacy, coping efficacy had a greater intervening effect on SARS stress response.
4.Development of Automatic Infusion Alarm Device
Chinese Medical Equipment Journal 2003;0(12):-
Objective To develop a automatic infusion alarm device. Methods The automatic infusion alarm device was subtly reformed according to the principal of the character of the spring that the different gravity caused its length to be different. It consisted of two parts: springs and alarm circuit controller box. Results Clinical test was undertaken. Conclusions The automatic infusion alarm device is simply manufactured, reliable and cheap. It is valuable to advocate clinically.
5.Effects of globular adiponectin,glucose and free fatty acid on AMPK and ACC phosphorylation in INS-1 ? cells
Journal of Peking University(Health Sciences) 2003;0(06):-
Objective: To investigate effects of glucose and free fatty acid at different concentrations on phosphorylation of adenosine-5′-monophosphate activated protein kinase(AMPK) and acetyl CoA carboxylase(ACC) in INS-1 cells,and effects of globular adiponectin on phosphorylation of AMPK and ACC.Methods: INS-1 cells were cultured and treated with 5 mmol/L glucose or 0.25 mmol/L free fatty acids,and time courses and dose responses of different dosages of glucose and fatty acid on phosphorylation of AMPK and ACC were measured.We measured the effects of the pharmacological AMPK activator AICAR(5-aminoimidazole-4-carboxamide-riboside) and globular adiponectin on phosphorylation of AMPK and ACC.Results: Glucose and fatty acid at different concentrations inhibited the phosphorylation of AMPK and ACC at the end of 60 min,but AICAR increased the phosphorylation of AMPK and ACC significantly,while 2.5 mg/L globular adiponectin increased the phosphorylation of AMPK and ACC by 23%(P
6.Major causes of diabetes in ancient literatures
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(10):-
In this article,the author analyzes the major causes of diabetes at large.They can be divided into deficiency of yin,weakness of five zang organs,improper diet,intemperance in sexual life,metal stimulation,emotional stress,attack by six climate exopathogens,disoperation by toxin and pathogen,over-taken powder,transformation into dryness and damage to fluids and so on.This article offers some valuable clinical bases for the study of this kind of disease.
7.Statistical analysis of syndrome,treatment,prescription and drugs during the Tang and Song Dynasty
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(10):-
There was subdiscipline tendency in clinical treatment of diabetes during the Tang and Song Dynasty,and the prescription had begun to take shape,and the syndrome differentiation and treatment of the chronic diseases such as diabetes kept increasing accuracy day by day.The way of statistical analysis,which probed the regular of compatibility of prescription and drugs of diabetes in and before the Tang and Song Dynasty,could provide very valuable referenced prescription and drugs in coming Chinese clinic and scientific research.
8.Contents Determination of Chrysin and Baicalein in Senmen Oroxyli
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(12):-
Objective To establish a HPLC method of determining chrysin and baicalein in Senmen Oroxyli. Method The contents of chrysin and baicalein were determined by HPLC. The chromatographic conditions were: Kromasi1-C_(18) column (5 ?m, 250 mm?4.6 mm), with methanol-acetonitrile-water-glacial acetic acid (25 : 25 : 50 : 0.2) as the mobile phase, at the flow rate of 1 mL/min, the detecting wavelength at 275 nm and at the room temperature. Results The contents of baicalein and chrysin could be detected by this HPLC method, and got good separation and good linear relationship. RSD were 1.53% and 1.35%, indicating good repeatability, recovery RSD were 1.85% and 1.59%, indicating a good recovery. Conclusion The method is simple, feasible and repeatable, and can be provide reference for quality control of Senmen Oroxyli.
9.ABI detection in the diagnosis of lower limb vasculopathy in the diabetes:a comparative study with DSA
Journal of Chongqing Medical University 2007;0(07):-
Objective:To explore the diagnostic value of ABI detection in lower limb vasculopathy of diabetic patients.Methods:ABI detection was performed in 44 cases suspected of diabetic lower limb vasculopathy,and the results were compared with that of DSA. Results:There was no statistically significant difference between ABI detection and DSA in the diagnosis of diabetic lower limb vasculopathy.Compared with DSA,the accordance rate,sensitivity and specificity of ABI were 87.31%,86.46%and 82.00%respectively. Conclusion:By ABI detection,lower limb vasculopathy of diabetic patients can be detected.
10.Development of Information Database of Traditional Chinese Medicine
International Journal of Traditional Chinese Medicine 2009;31(5):478-
The research and establishment for the internet and information digitalization of traditional Chinese medicine have been greatly developed in the past thirty years, keeping paces with times. The database system has been extensively applied in the field of traditional Chinese medicine. The establishment of sharing databases for Chinese medicine will lay the foundation for inheritance and innovation of traditional Chinese medicine.