1.Evaluating the effect of embelin combined with paclitaxel on inhibiting A549 lung cancer cell proliferation and tumor growing in tumor-bearing nude mice growing
Chinese Journal of Biochemical Pharmaceutics 2014;(2):7-9
Objective To evaluate the effect of embelin combined with paclitaxel on the inhibition of A 549 lung cancer cell proliferation and tumor growing in tumor bearing nude mice. Methods The anti-proliferation efficiency of embelin combined with paclitaxel were evaluated by MTT assay, and A 549 cell apoptosis were evaluated by lfow cytometry. A 549 cells were xenografted in mice to establish the animal model, which were used to evaluate the effect of anti-tumor. Results compared to saline group、embelin group and paclitaxel group, the (paclitaxel+embelin) group could inhibit the growth of A 549 cells effectively(P<0.05). The embelin combined with paclitaxel induced the apoptosis of A 549 cells more effective than paclitaxel alone. The (paclitaxel+embelin) group significantly inhibited the growth of tumor tissue. Conclusion the paclitaxel can inhibit the growth of A 549 cells, the embelin can induce the apoptosis of A 549 cells, and the combination of paclitaxel and embelin may be a potentially effective treatment for lung cancer.
2.Study of the Current Drug Price Management Model in China
Ying GUO ; Lihua SUN ; Chunhui LI
China Pharmacy 1991;0(02):-
OBJECTIVE:To discuss about the reasonable drug price management model in China METHODS:The current drug price management model and its defects were analysed in detail RESULTS & CONCLUSION:The implication of the reasonable model is that drug price should be mainly determined by the market By way of enlarging the power of market in regulating price,improving the scientificalness and transparency in setting price and carrying out whole range of reforms in manufacture,circulation and medical insurance,drug price problem will be solved to a certain degree
3.Studies on Quality Standard of Chongcaojing Oral Liquid
Lihua SUN ; Aiying WU ; Chunhui ZHANG
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective To set up the standard for the quality control of Chongcaojing Oral Liquid.Methods Radix Astragal-i,Radix Ginseng,Radix Angelicae Si nensis,Radix Rehmanniae were ident ified quantitatively by thin -layer chromatog-raphy(TLC)and astragalosideⅣcontent in Radix Astragali was determined by TLC scanning quantitiatvely.Results The TLC spots were highly specific,clea r and concentrated without the interference of negative controls.Linearity was ob-tained in the range of 1.03~6.15?g(r =0.9994).The average recovery was 99.2%with RSD =1.8%.Conclu-sion This method is sensitive,simple,sp ecific and accurate for the quality c ontrol of Chongcaojing Oral Liquid.
4.The current precision medicine approaches in genetic epilepsies
Xiaolong DENG ; Chunhui HU ; Dan SUN ; Zhisheng LIU
Journal of Chinese Physician 2017;19(8):1125-1129
The increasing identification of genetic causes for epilepsy over the recent years improves the understanding of the underlying epileptog enic process,and allows for the possibility of directed therapeutic approaches.An ideal antiepileptic therapy consists of a drug which is able to influence the functional changes caused by a specific pathogenic variant.In this review,we describe the current precise medicine approaches in genetic epilepsies.Currently established or investigated precise medicine treatments include the ketogenic diet in patients with glucose transporter typel (GLUT1) deficiency,sodium channel blockers in patients with KCNQ2 mutations,and mechanistic target of rapamycin (mTOR)-inhibitors in patients with SCN2A and SCN8A mutations.These predominantly represent already available treatments that were repurposed for use in epilepsy.The development of new therapeutic agents aiming at targets identified in genetic epilepsies will advance epilepsy treatment considerably.
5.The Detection of Ureaplasma urealyticum in Cervix of Gynecologic Check-up Population and Female Sex Workers and Its Biovars and Serotypes
Yi REN ; Dan SUN ; Chunhui ZHAO ; Xuejun ZHU
Chinese Journal of Dermatology 1994;0(05):-
Objective To investigate Ureaplasma urealyticum in cervical specimens of gynecologic check-up population and female sex workers(FSW)and its biovars and serotypes.Methods The gynecologic check-up patients and female sex workers were screened using Uu liquid selective medium.The positive cases were then divided into biovars and serotypes by the means of PCR.Results Ninety-eight FSW and164gyne-cologic check-up patients were investigated.In the FSW group,89cases(90.8%)were positive in culture,in-cluding biovar164cases(71.9%),biovar1+27cases(7.9%),biovar218cases(20.2%).In71biovar1positive cases,biovar1+2and co-infection of serotypes of biovar1were defined as mixed infection.Infection with single serotype of biovar1was defined as simple infection.So in71biovar1positive cases of FSW group,there were17mixed infections(23.9%)and54simple infections(76.1%).Simple infections were then subdivided into serotypes,including serotype117cases(31.5%),serotype322cases(40.7%),and serotype615cases(27.8%).In gynecologic check-up group,104cases(63.4%)were culture positive,in-cluding biovar197cases(93.3%),biovar27cases(6.7%).In97biovar1positive cases,there were11mixed infections(11.3%)and86simple infections(88.7%).In86simple infections,there were serotype122cases(25.6%),serotype337cases(43.0%),and serotype627cases(31.4%).Conclusions The posi-tive rate of Uu in FSW is higher than that of gynecologic check-up population(P
6.Clinical Application of Mathematical Relation Model on Metacarpal and Phalange Bones
Zixuan WANG ; Xiurong DONG ; Yan WANG ; Chunhui SUN
Journal of Practical Radiology 1992;0(11):-
Objective To provide a dimension calculating method of metacarpal and phalange bones with individual character for surgery and prosthesis design.Methods 102 X-ray films of pairs of healthy adult hands(52 male and 50 female) were measured and a mathematical relation model were described.Another 30 hands were put in a practice for further research.All of the data were analyzed by SPSS software.Results It was found that 98.98% items were positive correlation and their correlations were significant(r=0.157 ~0.925,P
7.Experience and inspiration of research during residency program in USA
Jiaxu HONG ; Yi LUO ; Chunhui JIANG ; Yi SUN ; Jianjiang XU ; Xinghuai SUN
Chinese Journal of Medical Science Research Management 2014;27(6):650-652
Standardization of residency training aims to improve the overall quality of residents and bring up high-quality medical students.Research capabilities and innovative spirit of young physicians play important roles in the sustainable development of hospitals.This article describes the experience in strengthening research training in the United States residency program,provides recommendations to resolve the problems of our residency standardized training and new ideas for the domestic medical institutions to strengthen the young physicians' sense of innovation and scientific research ability.
8.Treatment of superior mesenteric artery embolism by percutaneous mechanical thrombectomy with the SolitaireAB stent system
Yuxi LIU ; Kai WANG ; Chunhui YIN ; Mingming LIN ; Hao HE ; Tianqiang NI ; Yequan SUN
Journal of Practical Radiology 2017;33(8):1273-1275
Objective To evaluate the curative effect and security of mechanical thrombectomy with SolitaireAB stent system in acute superior mesenteric artery embolism(SMAE).Methods The clinical data of 5 cases who had undergone mechanical thrombectomy with SolitaireAB stent system under digital subtraction angiography (DSA) were analyzed retrospectively.Results A successful thrombus removal of superior mesenteric arterial by SolitaireAB stent system was observed in the whole 5 patients.The patients had recovered well after operation and no complications such as arterial dissection,perforation and hemorrhage or intestinal ischemia occurred.Conclusion The arterial mechanical thrombectomy with SolitaireAB stent system are characterized with high rate of recanalization,fine security,minimal invasion and less complications in patients with acute superior mesenteric arterial embolism.
9.Application of next-generation sequencing in children with unexplained neurodevelopmental disorders
Haoya ZHANG ; Chunhui HU ; Dan SUN ; Zhisheng LIU
Journal of Chinese Physician 2018;20(9):1288-1291
Neurodevelopmental disorders are diseases affecting language,sports,intelligence and social adaptability,and through appropriate early intervention,part of the affected children can recover to the same or similar level as normal children,so it is of vital importance to provide accurate early identification and comprehensive intervention for the affected children.Now the gene technology is applied widely,especially the next-generation sequencing is characterized by high throughput,low cost and fast sequencing,which has made great progress in assisting the diagnosis of children with unexplained neurodevelopmental disorders.Therefore,genetic diagnosis can be used to understand the prognosis of children and to provide genetic counseling for their parents,which is conductive to reducing their incidence and early intervention.
10.Research on Dynamic Electrocardiograph Simulation by Using Piecewise Functions
Wanzhu YANG ; Yanfei LIU ; Qiuming SUN ; Feng TIAN ; Deer YI ; Huiming YI ; Chunhui ZHAO
Chinese Medical Equipment Journal 2004;0(08):-
Objective To research and construct dynamic electrocardiograph (ECG) simulation model/algorithm to simulate different kinds of clinical ECG,where the heart rate can be infinitely variable,and to develop one platform for fast-demo and analysis of theoretical wave based on this algorithm which can be implemented in ECG training and teaching. Methods According to different characteristics decoupled one complete ECG wave to 4 parts,including P-wave,PR-section,QT -wave and TP -section. P -wave and QT -wave database were set up accordingly to find the relationship algorithm between PR-section and heart rate,TP-section and heart rate. With the synthesis work of the algorithm and clinical diagnosis theory,ECG simulation mathematical model /algorithm,dynamic link library.(dll) and software interface were developed by C++. Results Through comparing the ECG simulation results with clinical samples,the veracity and validity of the mathematical model/algorithm was verified. Conclusion The software module based on this model/algorithm is very valuable for ECG training and teaching in clinic,and can be implemented in the development of more advanced ECG relative software and devices.