1.Determination of Reserpine in Reserpine Injection by HPLC
China Pharmacy 1991;0(05):-
OBJECTIVE:To establish an HPLC method for the determination of reserpine in Reserpine injection.METHODS:The determination was performed on Venusil XBP-C18 column with column temperature at 28 ℃.The mobile phase consisted of methanol-water (52:48,pH value of (3?0.2)) with flow rate of 1 mL?min-1.The detection wavelength was 268 nm and sample size was 10 ?L.RESULTS:The linear range of reserpine was 4~l6 ?g?mL-1 (r=0.999 1) with average recovery of 99.69% (RSD=0.98%,n=9).CONCLUSION:The method is accurate,reliable and reproducible for content determination of Reserpine injection.
2.Analysis on Clinical Efficacy and Safety of Pioglitazone Combined with Metformin in the Treatment of Type 2 Diabetes
China Pharmacy 2005;0(24):-
OBJECTIVE:To analyze clinical efficacy and safety of pioglitazone combined with metformin in the treatment of type 2 diabetes.METHODS:102 patients with type 2 diabetes were randomly divided into 2 groups.Treatment group received pioglitazone combined with metformin and treatment group received metformin alone.The levels of blood glucose and insulin were observed and compared between 2 groups.RESULTS:After 6 months of treatment,fasting plasma glucose(FPG),postprandial 2 h blood glucose(P2hBG),glycosylated hemoglobin(HbA1c),fasting insulin(FINS),postprandial 2 h insulin(P2hINS),steady-state assessment index of insulin(HOMA-IR) in 2 groups were significantly decreased,there was statistical significance in difference before and after treatment(P
4.Preparation of Glycyrrhetic Acid Derivatives-Modified Norcantharidin Liposome and Study on Its Liver-targeting Property in Mice
Chao WU ; Weiying GUO ; Lei ZHANG
China Pharmacy 2007;0(28):-
OBJECTIVE:To prepare glycyrrhetic acid derivatives-modified norcantharidin(NC)liposome(GDNL)and study its liver-targeting property.METHODS:Gal-GAOSt targeting molecules were synthesized to modify NC and prepare GDNL,with the parameters such as the entrapment efficiency and particle diameter,etc.investigated.Mice were enrolled to be injected with GDNL and NC water solution,respectively via vena caudalis followed by determination of NC concentration in different tissues to compute the targeting-index(TI)of GDNL in liver.RESULTS:The prepared GDNL had an entrapment efficiency of 56.29%,particle diameter of(210?20)nm and TI of 5.213 in liver.CONCLUSION:The prepared GDNL has high entrapment efficiency and remarkable liver-targeting property.
5.Integration of medical psychology and psychiatry curriculum
Weiying GUO ; Feng WU ; Yanqing TANG
Chinese Journal of Medical Education Research 2013;(7):652-653,654
Medical psychology and psychiatry is the obligatory courses for five-year and seven-year medical students. With the rapid changes of society and continuous improvement of medical services , it is necessary to adjust and integrate the teaching content of these two courses. Teaching order of some chapters in the teaching syllabus was not helpful for students to understand the teaching content. Some teaching content was repetitive. Part of the self-study content urgently needs to teach with the development of the society and changes in disease spectrum. After the adjustment , the teaching content of the curricu-lum with strong pertinence was clear and coherent. It improved the teaching efficiency and knowledge of students;therefore, the curriculum is widely praised by the students.
6.Comparison of Contents of Deoxyschizandrin and Schisantherrin A in Fructus Sch isandrae Chinensis
Yanling ZHAO ; Weijun KONG ; Limei SHAN ; Xiaohe XIAO ; Weiying GUO
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(04):-
Objective To establish a HPLC method for the determination of deoxys chizandrin and schisantherrin A in Fructus Schisandrae Chinensis. Methods The as say was conducted on a YWG-C18 column with methonal-water (77 ∶23) as mobile phase. The flow rate was 1.0 mL/min and detection wavelength was 230 nm. Results Satisfactory linearities of deoxyschizandrin and schisantherrin A were shown in the range of 0.125~1.25 ?g and 0.08~0.8 ?g,and the recovery was 100.1 %an d 100.0 %(RSD being 0.15 %and 0.28 %。Schisandra sphenanthcra),and 99.7 %an d 101.2 %(RSD being 0.32 %and 0.67 %。Schisandra chinensis) (n=5). Conclusion The HPLC method was simple,curate,highly sensitive and reproducible. It may b e used for the quantitative determination of deoxyschizandrin and schisantherrin A in Fructus Schisandrae Chinensis.
7.Risk factors of vascular cognitive impairment among Chinese population:Meta-analysis
Fang YANG ; Qianqian LIU ; Lijuan WANG ; Weiying GUO ; Yan YAO
Journal of Jilin University(Medicine Edition) 2014;(3):626-632
Objective To explore the risk factors of vascular cognitive impairment (VCI)among Chinese population, and to clarify the scientific evidences for further prevention and treatment.Methods PubMed,CNKI,CBM,VIP and Wangfang databases (from 2002.1 to 2013.1)were searched to collect case-control studies or cohort studies studying risk factors of VCI among Chinese population. Meta-analysis was performed to calculate combined odds ratio (OR)or mean difference (MD)and its 95% confidence interval (95%CI).Results A total of 42 proper papers involving 3 282 cases and 7 815 controls were included in the review.For categorical variables,pooled OR and its 95% CI were as follows:hypertension 2.56 (2.03 - 3.21 ), hyperlipidemia1.79 (1.39 - 2.30 ), hyperglycemia 2.46 (1.90-3.19),Leukoaraiosis 5.46 (2.60-11.46),cerebral infraction multiple foci 4.39 (2.61-7.38),stroke history3.79(2.35-6.11),left hemisphere lesions 2.13(1.42-3.20),smoking 1.51 (1.08-2.11),drinking 0.99(0.73-1.36),basal ganglia lesions 2.15(1.55-2.99),thalamus lesions 2.34(1.57-3.47);for continuous variables,MD and its 95%CI were as follows:level of TG 0.35(0.15-0.55),level of TC 0.44(-0.16-1.04),level of folic acid -4.10(-5.50- -2.69),vitamin B12 -130.44(-225.46--35.41).Conclusion Except for drinking and level of TC, hypertension, hyperlipidemia, hyperglycemia, leukoaraiosis,cerebral infraction multiple foci,stroke history,left hemisphere lesions,smoking,basal ganglia lesions,thalamus lesions,high level of TG,low level of folic acid and vitamin B12 might be the risk factors of VCI among Chinese population.
8.Clinical Analysis of Huge Retroperitoneal Neurogenic Tumor Treated by Preoperative Endovascular Embolization
Haifeng ZHANG ; Weiying GUO ; Bai WANG ; Jian WANG ; Dawei WANG
Journal of Practical Radiology 2000;0(12):-
Objective To explore the initial clinical experiences of preoperative endovascular embolization of huge retroperitoneal neurogenic tumor.Methods 5 cases with retroperitoneal neurogenic tumor underwent endovascular embolization before operative resection since Aug.2006~May.2007.Digital subtraction angiography(DSA) was performed during processes in all cases and main tumor's vessels were embolized.Results The processes of endovascular embolization in 5 cases were successfully completed.0~400 ml blood were transfused in these cases.The tumors were excised completely in 4 cases and partly in 1 case.Conclusion Blood loss can be decreased by preoperative endovascular embolization for huge retroperitoneal neurogenic tumors.The extent of embolization should be performed according to individualization.
9.Study on the association of thyrotropin receptor antibodies with the sensitivity to glucocorticoid therapy in Graves′s ophthalmopathy patients
Kehui LIU ; Qing LIU ; Weiying GUO ; Shugang XI
Chinese Journal of Immunology 2001;0(10):-
Objective:To investigate the association of thyrotropin receptor antibodies(TRAb) with the sensitivity to glucocorticoid therapy in Graves′s ophthalmopathy(GO) patients.Methods:Total 37 subjects with active GO were treated with prednisone. According to the relieve degree and clinical activity of their eye symptoms post-steroid treatment, patients were grouped into sensitive group(S) and non-sensitive group(NS). TRAb positive rate and antibody titer of the two groups were compared.Results:In S group( n=28 ), the positive rate and titre of TRAb were 76.53% and (12.54?5.62) U/L, respectively; The positive rate and titre of TRAb post-treatment were 22.18% and (7.82?4.91) U/L, respectively, were significant lower than data prior treatment. In NS group( n=9 ), the positive rate and titre of TRAb prior treatment were 67.24% and (11.07?4.63) U/L, respectively; The positive rate and titre of TRAb post-treatment were 59.74% and (10.81?5.96) U/L, there was no significant difference with data prior treatment. Prior treatment, there was no significant difference of TRAb titres between the two groups. Post-treatment, TRAb titres in NS group were significant higher than in S group.Conclusion:The variations of TRAb level were closely correlated with the sensitivity to glucocorticoid therapy in GO patients. Serum TRAb level can be used as a major index to evaluate therapeutic sensitivity to glucocorticoid therapy in GO.
10.Effects of recombinant human acidic fibroblast growth factor on healing of dermal chronic ulcers in diabetic rats
Qing LIU ; Weiying GUO ; Kehui LIU ; Xiaona XIE ; Liying WANG
Journal of Jilin University(Medicine Edition) 2006;0(01):-
Objective To study the healing effect of recombinant human acidic fibroblast growth factor(rhaFGF) expressed in E.coli on dermal chronic ulcers in diabetic rats.Methods Ten male Wistar rats were used to set up diabetic dermal chronic ulcers models.The wounds were sprinkled with rhaFGF and physiological saline,respectively.The wound area,wound cavity volume and healing time were recorded,granulation tissue growth and epithelization in wound were observed,and wound healing status was evaluated.Results Compared with control group,the wound area and wound volume at different day in rhaFGF group were significantly diminuted(P