1.Lipoprotein (a) and its immune complexes concentrations in patients with various dyslipidaemias
Daning CHEN ; Junjun WANG ; Chunni ZHANG
Journal of Medical Postgraduates 2004;0(02):-
Objective:To investigate the possible interaction of Lp(a), and Lp(a) circulating immune complexes (CIC) 〔Lp(a)-CIC〕 level with triglyceride (TG). Methods:Plasma Lp(a), Lp(a)-CIC and LDL-CIC levels were determined by ELISAs in 232 patients with various dyslipidaemias, respectively. Results:Hypertriglyceridaemic patients exhibited the lowest plasma Lp(a) levels, while hypercholesterolaemic patients exhibited the highest. Patients with mixed hyperlipidaemia had intermediate serum Lp(a) concentrations, which were significantly lower than those in the controls. Interestingly, we also found that hypertriglyceridaemic patients exhibited the lowest plasma Lp(a)-CIC and LDL-CIC levels, while hypercholesterolaemic patients exhibited the highest. TG levels were negatively correlated with Lp(a) (r=-0.15, P
2.Comparative research on two methods of temperature monitoring
Yongming TIAN ; Lihui ZENG ; Junjun CHEN
Chinese Journal of Practical Nursing 2010;26(32):80-81
Objective To compare the differences of temperature results between mercury thermometer and infrared thermometer. Methods The temperature of three parts was recorded respectively by mercury thermometer in axilla and infrared thermometer in forehead and earlobe on the same patient, totally 98 patients were recorded in ICU. Results There was statistical difference of three parts' temperature in 98 cases. It could be assumed that axilla temperature > earlobe temperature > forehead temperature;There was no statistical difference of three parts' temperature in 17 cases with temperature 38.0~38.9 ℃ by mercury thermometer, but the difference had clinical significance. It could be assumed that axilla temperature > earlobe temperature > forehead temperature; There was statistical difference of three parts' temperature in 30 cases with temperature at 37.0~37.9 ℃ by mercury thermometer. It could be assumed that axilla temperature > earlobe temperature > forehead temperature. There was no statistical difference of three parts'temperature in 51 cases with temperature at 35.0~36.9 ℃ by mercury thermometer. Conclusions Temperature of the patients with normal axilla temperature could be monitored by infrared thermometer instead of mercury thermometer,but it is not applicable to the patients with fever.
3.Randomized controlled study of elderly patients with intertrochanteric fracture treated with Duyiwei capsule combined with traditional Chinese medicine bone setting manipulation
Linbo SONG ; Jiaming SONG ; Junjun CHEN
Chinese Journal of Biochemical Pharmaceutics 2017;37(1):87-90
Objective To investigate the effects of Duyiwei capsule combined with traditional bone setting manipulation treatment of senile femoral intertrochanteric fracture clinical effect, for clinical elderly femoral intertrochanteric fracture clinical treatment in patients with reference. Methods 86 elderly patients with intertrochanteric fracture in Yuyao Hospital of Traditional Chinese Medicine from April 2014 to May 2015 were randomly divided into control group and observation group, 43 cases in each group. The control group using tibial tubercle traction, after traction with the traction arch to maintain. The observation group was treated by TCM manipulation combined with Duyiwei capsule. Continuous treatment for two weeks in two groups. The quality of life and clinical efficacy were compared between the two groups after treatment score, pain score, fracture healing time, hospitalization time, Harris score, evaluation of traditional Chinese medicine treatment of manipulative reduction combined with Duyiwei capsule of senile intertrochanteric fracture clinical effect. Results Two groups of patients after 2 weeks of treatment, The quality of life score, the Harris score of the observation group was significantly higher than the control group, the difference was statistically significant (P<0.05), pain scores were significantly I control group, healing time and hospitalization time were significantly shorter than the control group, the difference was statistically significant (P<0.05). The observation group excellent rate 90.7%was significantly higher than the control group 65.12%, the difference was statistically significant (P<0.05). Conclusion Duyiwei capsule combined with TCM manipulation for treatment of intertrochanteric fracture of femur in the elderly curative effect, effectively improve the patient's clinical experience, is suitable for the elderly femoral intertrochanteric fracture patients with a clinical treatment plan.
4.Borneol is an inducer of rat hepatic CYP2D activity in vivo.
Jingya CHEN ; Junjun WANG ; Moran MENG ; Yong CHEN
Acta Pharmaceutica Sinica 2015;50(4):459-63
Borneol is a traditional Chinese medicine. In the past few years, many studies showed that borneol can improve the bioavailability of other drugs, promoting drugs to cross the blood-brain barrier, so the potential drug interactions between borneol and other medicines have attracted great attention, but the influence of borneol to CYP450 and its isoforms are rarely reported. In this research, male Wistar rats were orally administered by borneol for 7 days, then the mRNA and protein expression and the activities of CYP2D were detected, we also compared the pharmacokinetic parameters of CYP2D's specific substrate between control group and borneol group. The results show that borneol (33, 100 and 300 mg x kg(-1) x d(-1)) have no significant effect on CYP2D, while the activites of CYP2D increased 1.71, 1.97 and 2.89 times comparing to the control group. At the same time, borneol (300 mg x kg(-1) x d(-1)) caused the C(max) decreased 10.6% (P > 0.05), AUC(0-∞) decreased 27.5% (P < 0.01), CL/F increased 41.1% (P < 0.01), V(z)/F increased 23.1% (P > 0.05) of dextromethorphan. Our data provided that borneol speed up dextromethorphan's elimination in vivo. Since the activity of CYP2D can be induced by borneol, the metabolic interactions might happen when borneol and the substrate drug CYP2D are used together.
5.Sensitive genes screening of mice liver injury induced by hepatotoxicant and their biological function analysis
Fengmei HAN ; Qisong XIA ; Xiaoming ZHANG ; Junjun WANG ; Yong CHEN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(12):-
Objective:To scan the common differentially expressed genes in mice liver tissue following subacute exposure to hepatotoxicants,including alcohol,carbon tetrachloride,BCG & LPS,the alcohol extracts of Rhizoma Dioscoreae Bulbiferae and Senecio scandens Buch.-Ham.,and apply to the rapid toxic evaluation of TCM and other xenobiotics.Methods:The gene expression profiles of mice liver tissue,after respective administration of alcohol,CCl4,BCG associated with LPS,the alcohol extracts of Rhizoma Dioscoreae Bulbiferae and Senecio scandens Buch.-Ham.to healthy mice,were analyzed by use of mouse genome cDNA microarray.The correlations between the common differential expressed genes and the liver injury were analyzed based on the biological functions of those differentially expressed genes.Results:Among all of the five drug administration groups,there were 7 known function genes(BC05200,NM-019410,NM-173019,AB028272,AK088925,AK030862 and AK088816)and 1 unknown function gene(BC069871)differentially expressed.Beside AK088816,the other 7 genes were all down-regulate expressed.Conclusion:The common differentially expressed genes participate in the process of saccharometabolism,apoptosis,cell growth cycle,cytoskeleton and signal transmission,protein folding and protein ubiquitin.The abnormal expression of the common genes were closely correlated to the liver,and might be important for rapid hepatoxicity elucidation of traditional Chinese medicine and other xenobiotics.
6.Effects of diosgenin on cell proliferation,differentiation and OPG/RANKL mRNA expression of rat osteoblasts cultured in vitro
Yangzhen JIANG ; Junjun WANG ; Jichao LIANG ; Yong CHEN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(01):-
Objective:To study the effects of diosgenin on cell proliferation, differentiation and OPG/RANKL mRNA expression of rat osteoblasts cultured in vitro for analyzing the prevention and treatment mechanism of diosgenin. Methods: Rat osteoblast cultured in vitro was treated by a series of different concentrations of diosgenin for different time respectively. The proliferation of osteoblast was detected by MTT method. The differentiation of osteoblast was detected by the activity of ALP mRNA expression of osteoprotegerin(OPG) and RANKL(receptor activator nuclear factor-kappa B ligand,RANK) were semi-quantified by RT-PCR, and the ratio of OPG/RANKL mRNA was used to evaluated the effect of diosgenin on osteoclast signal transduction pathway of OPG/RANKL/RANK system. Results: Diosgen at the concentration of 3.64?10-8 and 3.64?10-7mol/L can promote the proliferation, enhance the activity of ALP and raise the ratio of OPG/RANKL mRNA of rat osteoblast cultured in vitro(P
7.Effects of ginsenoside Rb1 on cell proliferation,differentiation and OPG/RANKL mRNA expression of rat osteoblast cultured in vitro
Junjun WANG ; Yangzhen JIANG ; Jichao LIANG ; Yong CHEN
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(06):-
Objective:To study the effects of ginsenoside Rb1 on cell proliferation,differentiation and OPG/RANKL mRNA expression of rat osteoblast cultured in vitro.Methods:Rat osteoblast cultured in vitro was treated by a series of different concentration of ginsenoside Rb1 for different time respectively.The proliferation of osteoblast was detected by MTT method.The differentiation of osteoblast was detected by the activity of ALP.mRNA expression of osteoprotegerin (OPG) and RANKL(receptor activator nuclear factor-kappa B ligand,RANK) were semi-quantified by RT-PCR,and the ratio of OPG/RANKL mRNA was used to analyze the differentiation of ginsenoside Rb1 to osteoclast.Results:Ginsenoside Rb1 at a concentration of 1.12?10-9mol/L to 1.12?10-5mol/L can promote the proliferation of osteoblast after 72h of treatment (P
8.Analytical Method for Determination of 41 Organophosphorus Pesticide Retention in Ginseng
Xiaohui HUANG ; Yanlin SHEN ; Junjun CHEN ; Jian ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2015;(3):86-89
Objective To establish a gas chromatographic method for the determination of 41 organophosphorus pesticide retention in ginseng. Methods Samples were extracted with acetonitril, purified by PSA solid phase extraction column, eluted by acetone-normal hexane, detected by FPD, and separated by ZB-1701 capillary column. Temperature for the samples was increased through program and the samples were determined by gas chromatography. Results 41 organophosphorus pesticides showed good linear relation in the range of 5-1000 μg/kg, and correlation coefficient was 0.991-0.998. The average recoveries at the three fortification levels (50, 100, 500μg/kg) were between 69.8% and 99.7% with the RSD between 1.9% and 15.3%. The limits of quantification (LOQ) of the 41 pesticides were between 9μg/kg and 45μg/kg. Conclusion The method developed in this study is with high degree of accuracy, good sensitivity, easy and simple to handle.
9.Effect of major components of maijunan tablets on the transport of hydrochlorothiazide in Caco-2 cell monolayer model.
Xiaohuan LIAO ; Junjun WANG ; Mingyong GAO ; Qian GAO ; Yong CHEN
Acta Pharmaceutica Sinica 2010;45(1):104-8
To study the effects of major components of Maijunan tablets, puerarin (Pue) and rhynchophylline (Rhy) on the transport of hydrochlorothiazide (Hct) Caco-2 cell monolayer model, the transport parameters of Hct, such as apparent permeability coefficient (P(app) (B --> A) and P(app) (A --> B)) and the ratio of P(app) (B --> A) versus P(app) (A --> B), were studied and compared when Hct was used solely and co-used with Pue and/or Rhy. The effects of drug concentrations, conveying times, P-glyprotein (P-gp) inhibitor verapamil and conveying Liq pH values on the transport of Hct in the above conditions were also investigated. The results indicated that the absorption of Hct in Caco-2 cell monolayer model could be a carrier-mediated active transport, along with the excretion action mediated by P-gp. Pue can decrease the excretion action of Hct mediated by P-gp, and Rhy had no significant effect on the transport of Hct. The co-use of Hct, Pue and Rhy enhanced the absorption of Hct. Meanwhile, conveying Liq pH value had significant influence on the transport of Hct. The absorption of Hct at pH 6.0 was higher than that at pH 7.4.
10.In vitro absorption mechanism of strychnine and the transport interaction with liquiritin in Caco-2 cell monolayer model.
Junjun WANG ; Xiaohuan LIAO ; Min YE ; Yong CHEN
Acta Pharmaceutica Sinica 2010;45(9):1160-4
To study the effect of liquiritin (Liq) on the transport of strychnine (Str) in Caco-2 cell monolayer model, the transport parameters of Str, such as apparent permeability coefficient (P app (B-->A) and P app (A-->B)) and cumulative transport amount (TRcum), were determined and comparatively analyzed when Str was used solely and co-used with Liq. The effect of drug concentrations, conveying times, P-glycoprotein (P-gp) inhibitor verapamil and conveying liquor pH values on the transport of Str were also investigated. The results indicated that the absorption of Str in Caco-2 cell monolayer model was well and the passive transference was the main intestinal absorption mechanism of Str in the Caco-2 monolayer model, along with the excretion action mediated by P-gp. Liq enhanced the absorption of Str. Meanwhile, conveying liquor pH value had significant influence on the excretion transport of Str.