1.Determination of triptolide in the sustained-release capsule ofTripterygium Wilfordii Hook.f.with HPLC
Journal of Chongqing Medical University 1987;0(01):-
Objective: To establish a method for content determination of triptolide in the sustained-release capsule of Tripterygium Wilfordii by high performance liquid chromatography.Methods: High performance liquid chromatography was performed on C18 column.The chromatographic conditions were as follows: Acetonitrile-water(40:60) as mobile phase;flow rate being 1.0 ml/min and the detecting wavelength at 220nm.Results:Triptolide had good linear relation within the range from 0.047 to 0.350?g/ml(r=0.9995).The average recovery was 99.88%(RSD=0.58%,n=5).Conclusion: This method is convenient,accurate,reproducible,which can be used for content determinaton of triptolide.
2.Study on Xiaojin Cinnabar Floated Sustained Release Preparation
Chinese Traditional Patent Medicine 1992;0(02):-
Objective: To study the floating and sustained release performance of Xiaojin Cinnabar Floated Sustained Release Capsules. Methods: HPMC was used to form the framwork of floated sustained release capsules containing Xiaojin Cinnabar. The content, floating time in vitro and releasing rate were studied.Results: The floating time in vitro was over 3 hours. The total released amount in 3 hours came to 60%. The conventional Xiaojin Cinnabar didn't have the floating performance. Conclusion: Xiaojin Cinnabar Floated Sustained Relegse Capsules is superior to the conventional Xiaojin cinnabar in the sustained release performance.
3.Analysis of the Utilization of TCM Injection in 39 Hospitals from Chongqing Area during 2012-2014
Lurong YU ; Xianzhong HAN ; Jiayu DING ; Shurong JIN
China Pharmacy 2016;27(23):3184-3187
OBJECTIVE:To provide reference for ration use of TCM injection. METHODS:The utilization of TCM injections in 39 hospitals from Chongqing area during 2012-2014 was analyzed statistically in respects of consumption sum,DDDs,DDC and B/A. RESULTS:The total consumption sum of TCM injections increased slowly in 39 hospitals from Chongqing area during 2012-2014,increasing from 767 581 thousand yuan to 911 759 thousand yuan,with annual growth rate of 8.98%. Total sum of consumption sum of top 10 drugs was 1 326 019.7 thousand yuan,accounting for 51.11% of total. The consumption sum of Hong-hua injection and Shenxiong glucose injection always took up the first 2 places in those years. DDDs of Xuesaitong injection, Shenxiong glucose injection glucose,Honghua injection and Shuxuetong injection always took up the first 4 places in those years. DDC of Xuebijing injection and Kanglaite injection always took up the first and second places in those years. Among top 10 TCM injection in the list of consumption sum,most of B/A was lower than 1.00;B/A of Shuxuetong injection,Xingnaojing injection, Shenqiong glucose injection and Xueshuantong injection were close or equal to 1.00. Xuesaitong injection was the one that B/A>1.00 from beginning to end. CONCLUSIONS:Total use of TCM injection increased steadily and drug use relatively concentrated in 39 hospitals from Chongqing area during 2012-2014,and rationality of drug use by physicians had been improved gradually.
4.Study on whorl swarming growth phenomenon of Proteus mirabilis.
Xianyuan HE ; Sixiang LIAO ; Junkang LIU ; Kun LI ; Yanxia LIU ; Lurong YU
Journal of Biomedical Engineering 2015;32(1):131-136
The present paper is aimed to explore the origins of Proteus mirabilis (PM) whorl swarming growth phenomenon. The whorl swarming growth phenomenon of PM was observed by changed bacterial culture inoculation time, humidity, vaccination practices, cultured flat placement, magnetic field, pH and other factors. Bacterial ring spiral direction of rotation is counterclockwise and the volatile growth process of PM was whorl swarming growth phenomenon. Spiro fluctuation phenomenon was of high frequency in the sealing tanks by cultured anytime inoculation, wherever inoculation technique applied or not, the presence or absence of the magnetic field, and wherever the dish position was. The experimental results showed that the whorl swarming growth phenomenon of PM requires specific pH environment, in which the facts may be relative to its genetic characteristics and the Earths rotation.
Cell Culture Techniques
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Hydrogen-Ion Concentration
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Magnetic Fields
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Proteus mirabilis
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growth & development
5.Study on influence of patient perceived medical service quality on satisfaction and behavioral intention
Xueqin ZENG ; Lurong LIU ; Wenjuan LI ; Yuting JIANG ; Lei ZHOU ; Wei YU
Chongqing Medicine 2018;47(5):657-659
Objective To study the influence of patient perceived medical service quality on the satisfaction and behavioral intention.Methods The AMOS21.0 software was adopted to construct a structural equation model with satisfaction as a medium for conducting the path analysis among the perceived medical service quality,satisfaction and behavioral intention.Results The perceived medical service quality produced the direct impact on behavioral intention(y=0.50) and satisfaction(γ=0.87),the satisfaction produced the direct impact on behavioral intention(γ=0.38);with the satisfaction as a medium,the perceived medical service quality had the indirect impact(0.33) on behavioral intention and the intermediary rate was 39.76%.Conclusion The perceived medical service quality has active influence on the patient satisfaction and behavior intention,and indirectly acts on the behavioral intention with the satisfaction as intermediary agent.
6.Effect of Processed Polygonatum cyrtonema in Preventing Depression Induced by Chronic Unpredictable Mild Stress in Female Rats
Xinyu DENG ; Chunhua MA ; Zimeng WANG ; Man TANG ; Xinran LI ; Lurong YU ; Xianyuan HE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):117-124
ObjectiveTo observe the prevention and control effect of processed Polygonatum cyrtonema on depression induced by chronic unpredictable mild stress (CUMS) in female rats. MethodsForty rats were assigned into control, model, and low-, medium-, and high-dose processed P. cyrtonema groups according to the random number table method, with 8 rats in each group. The rat model of depression was established with the CUMS method. The body mass, open field test, forced swimming test, Morris water maze test, levels of neurotransmitters [dopamine (DA), 5-hydroxytryptamine (5-TH), and acetylcholine (ACh)], serum levels of sex hormones [gonadotropin-releasing hormone(GnRH), testosterone (T), and estradiol (E2)] and inflammatory factors [tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and IL-10], and mRNA and protein levels of factors in the brain-derived neurotrophic factor (BDNF)/tyrosine kinase receptor B (TRKB)/cAMP-response element binding protein (CREB) pathway were employed to evaluate the effect of processed P. cyrtonema on the CUMS-induced depression in female rats. ResultsThe body mass, open field test results, and forced swimming test results showed that the rat model of depression was successfully established. The comparison of behaviors, neurotransmitters, sex hormones, inflammatory factors, and neural pathways among groups showed that processed P. cyrtonema had different effects of preventing the development of depression in female rats. SPSS 25 was used for statistical analysis of error and significance. T test was conducted between groups. Each treatment group showed significant therapeutic effect compared with the model group (P<0.05). Processed P. cyrtonema elevated the level of 5-TH (P<0.01) and lowered the levels of DA and ACh (P<0.01) in the brain tissue of female rats. In addition, it reduced the serum levels of GnRH, T, E2, TNF-α, and IL-6 (P<0.05) and up-regulated the mRNA levels of BDNF and TRKB in the rat brain. ConclusionProcessed P. cyrtonema has a non-hyperactive preventive effect on CUMS-induced depression in rats, which provides a theoretical basis for the development of processed P. cyrtonema as a functional food product.
7.Effect of Processed Polygonatum cyrtonema in Preventing Depression Induced by Chronic Unpredictable Mild Stress in Female Rats
Xinyu DENG ; Chunhua MA ; Zimeng WANG ; Man TANG ; Xinran LI ; Lurong YU ; Xianyuan HE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):117-124
ObjectiveTo observe the prevention and control effect of processed Polygonatum cyrtonema on depression induced by chronic unpredictable mild stress (CUMS) in female rats. MethodsForty rats were assigned into control, model, and low-, medium-, and high-dose processed P. cyrtonema groups according to the random number table method, with 8 rats in each group. The rat model of depression was established with the CUMS method. The body mass, open field test, forced swimming test, Morris water maze test, levels of neurotransmitters [dopamine (DA), 5-hydroxytryptamine (5-TH), and acetylcholine (ACh)], serum levels of sex hormones [gonadotropin-releasing hormone(GnRH), testosterone (T), and estradiol (E2)] and inflammatory factors [tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and IL-10], and mRNA and protein levels of factors in the brain-derived neurotrophic factor (BDNF)/tyrosine kinase receptor B (TRKB)/cAMP-response element binding protein (CREB) pathway were employed to evaluate the effect of processed P. cyrtonema on the CUMS-induced depression in female rats. ResultsThe body mass, open field test results, and forced swimming test results showed that the rat model of depression was successfully established. The comparison of behaviors, neurotransmitters, sex hormones, inflammatory factors, and neural pathways among groups showed that processed P. cyrtonema had different effects of preventing the development of depression in female rats. SPSS 25 was used for statistical analysis of error and significance. T test was conducted between groups. Each treatment group showed significant therapeutic effect compared with the model group (P<0.05). Processed P. cyrtonema elevated the level of 5-TH (P<0.01) and lowered the levels of DA and ACh (P<0.01) in the brain tissue of female rats. In addition, it reduced the serum levels of GnRH, T, E2, TNF-α, and IL-6 (P<0.05) and up-regulated the mRNA levels of BDNF and TRKB in the rat brain. ConclusionProcessed P. cyrtonema has a non-hyperactive preventive effect on CUMS-induced depression in rats, which provides a theoretical basis for the development of processed P. cyrtonema as a functional food product.