1.HPLC fingerprint and HPLC-MS analysis for Red Peony Root
Yuntao WANG ; Limei WANG ; Xiangqun JIN
Chinese Traditional Patent Medicine 1992;0(07):-
AIM:To establish an HPLC fingerprint spectrum of Red Peony Root ( Radix paeonia rubra). METHODS:Ten batches of samples were extracted by 50% ethanol and extract liquor was evaporated to dryness,resolved with methanol. The HPLC analysis was performed on a Diamonsil C18 column with the eluting system of gradient acetonitrile and water. MS was applied to the determination of possible chemical structure. RESULTS:Nine main characteristic peaks were selected from the fingerprint spectrum of 10 batches of samples. Five constituents of which were identified as gallic acid,peoniflorin albiflorin,benzoylpaeoniflorin and paeonol based on the MS spectra. CONCLUSION:The method is valuable for quality conthol of Red Peony Root.
2.Application prospects of human-originated hepatocellular carcinoma antibodies
Jin XIE ; Limei SHAN ; Yanling ZHAO
Chinese Pharmacological Bulletin 1986;0(05):-
Non-surgical therapy is important to liver cancer treatment. Actinotheraphy and chemotherapy, because of their less specific for cancer tissue and serious side effect, badly affect the patients' life qualities, sometimes even endanger the patients lives. Hepatocellular carcinoma specific antibodies have been the focus of liver cancer biotherapy. After 20 years of study since 1975, it has been demonstrated that antibodies derived from mouse could not efficiently stimulate the functions of human reactor, but could induce human anti-mouse antibody responses which could bring about serious side effects. The application of DNA recombination technique provides a good method for resolving the immune selection problem. The techniques of humanoriginated antibodies and phage displaying will lead to development of innovative strategies to manage liver cancer. In our country, the antibody products aimed at cancer all originated from mouse while the study of human antibodies is still at its primary stage. Non-human antibodies has been forbidden in clinical trails by FDA in America since 2001. It can be speculated that human antibody products will domminate the future market rapidly.
3.Clinic study of myocardium protective effect of immunoinflammatory response induced by preinfarction angina
Xingyuan JIA ; Limei YAO ; Hong JIN ; Aiping WANG ; Qingmin WEI
Chinese Journal of Postgraduates of Medicine 2006;0(19):-
Objective To investigate the myocardium protective effect of immunoinflammatory response induced by preinfarction angina. Methods Eighty-eight patients of acute myocardial infarction were divided into preinfarction angina group (48 subjects) and sudden onset group (40 subjects). The incidence of severe arrhythmia,heart failure,cardiac shock and in-hospital mortality were assessed in the two groups. The myocardial infarction size,ventricular function,coronary angiography were compared between the two groups. Some immunoinflammatory markers levels were detected. Results In preinfarction angina group,the incidences of severe arrhythmia,heart failure,and in-hospital mortality were lower (P
4.International experiences on the functions of healthcare professional organizations and its en-lightenment for China
Limei WEI ; Linlin HU ; Pingyue JIN ; Xiaoning LIU ; Yuanli LIU
Chinese Journal of Health Policy 2016;9(12):29-33
The aim of the present paper intends to explore the international experiences of healthcare profes-sional organizations and its enlightenment for China. The functions of health professional organizations in advanced countries include certification and accreditation, self-discipline, academic exchanges, political participation, service for industry, member rights protection and so on. The legal authorization, comprehensive supervision and competitive market mechanisms which make sure these functions perform well are worth learning for China.
5.Analysis on the development of healthcare professional organizations in China
Xiaoning LIU ; Linlin HU ; Limei WEI ; Pingyue JIN ; Yuanli LIU
Chinese Journal of Health Policy 2016;9(12):23-28
This article is based on a questionnaire survey of healthcare professional organizations and interview leaders of them. The results of this investigation show that the number of staff is small, and lack of highly qualified human resources. The organizations rely on donation for income and some of them run at a deficit. The functions such as professional self-discipline are not well performed. The analysis reveals four reasons why functions are not well per-formed:the bureaucratic style of the professional organizations and unclear legal status;the limited authorization from legal and administrative bodies;the defects in the governance system and the lack of capacity. Four aspects of policy recommendations are were proposed: to clearly define the role of the professional organizations and authorization through legal and administrative procedures; to strengthen support of professional organizations through various poli-cies;to improve governance and build comprehensive regulation mechanisms;to enhance the capacity of these organi-zations and so on.
6.Analysis of the role and function of professional organizations in health governance in China
Linlin HU ; Xiaoning LIU ; Limei WEI ; Pingyue JIN ; Yuanli LIU
Chinese Journal of Health Policy 2016;9(12):17-22
The characteristics of health care require that health care professional organizations play an impor-tant role in health governance. The role of health care professional organizations in China has not been clearly defined and their functions have not been fully developed. This paper explores the nature, and the functions of health care professional associations in China. Based on the analysis of health governance characteristics in China, the role, and functions of the health care professional organizations in China’s health governance were defined and relevant policy recommendations are were proposed.
7.Experience of introducing analysis of clinical cases into experiment teaching of pharmacology
Jing NIE ; Ansheng SUN ; Limei YU ; Yuanfu LU ; Feng JIN
Chinese Journal of Medical Education Research 2006;0(07):-
Introduction of clinical cases to experiment teaching of pharmacology is an effective method,which combines basic theory with clinical medicine.It can stimulate students' interest in pharmacology,enhance their go-aheadism in study and also improve teaching effects.Moreover,it plays an important role in improving the students qualities such as the reasoning ability,the verbal capacity and the ability to analve and resolve problems,etc..In this article,we explored the teaching method in experiment teaching of pharmacology,and evaluated the effect by questionnaire.
8.Therapeutic effects of silencing fibrinogen-like protein 2 gene on acute necrotizing pancreatitis mice
Limei SHAO ; Xiaohua YE ; Jin DING
Chinese Journal of Pancreatology 2018;18(5):328-332
Objective To investigate the therapeutic effect of silencing fibrinogen-like protein 2 (FGL2) gene on acute necrotic pancreatitis (ANP) mice.Methods Eighteen C57/BL mice were randomly divided into SO (sham operation) group,ANP group and Ad-FGL2-siRNA group carrying FGL2 siRNA adenovirus,with 6 in each group.Sodium taurocholate was retrogradely injected into the biliopancreatic ducts of the mice to induce ANP mice model.The mice in Ad-FGL2-siRNA group were injected intravenously in the tail vein with Ad-FGL2-siRNA befor the model establishment.The mice were sacrificed 6 h later,and then the pancreatic tissue and blood were collected.TNF-α and IL-1β expression were measured with ELISA,pancreatic tissue was examined with routine pathological examination,FGL2 mRNA and protein expression were measured with reverse transcription-PCR,western blotting and immunohistochemical staining,and cell apoptosis was assessed by TUNEL method.Results The pathological score of the pancreatic tissue in SO group,ANP group and Ad-FGL2-miRNA group was(1.33 ±0.21),(9.17 ±0.98) and (6.26 ±0.52),respectively.The serum TNF-α level in SO group,ANP group and Ad-FGL2-miRNA group was(63.8 ± 4.2),(240.4 ± 18.6)and(123.0 ± 10.3)ng/L,respectively.The serum IL-1β level was (43.6 ±4.4),(186.6 ± 18.7)and (92 ±10.9)ng/L.The mRNA expressions of FGL2 was 1.20 ±0.22,4.40 ± 1.21 and 2.15 ± 0.56.The protein expressions of FGL2 was 0.33 ± 0.08,1.23 ± 0.24 and 0.68 ± 0.09.The rate of FGL2 positive cells was (2.56 ± 0.31) %,(15.10 ± 3.23) % and (8.68 ± 1.81) %.The number of apoptotic cells was (4.51 ±1.21),(35.81 ± 4.11) and (11.79 ± 3.02) / × 200HPF,which in the ANP group was higher than that in SO group,and in the Ad-FGL2-siRNA group was significantly lower than that in ANP group and higher than that in SO group.All the differences were statistically significant (all P values < 0.05),except that on the FGL2 mRNA expression between Ad-FGL2-siRNA group and SO group.Conclusions Silencing FGL2 gene may alleviate pancreatic injury in ANP by reducing the release of inflammatory factors and inhibiting cell apoptosis.
9.Research on the building of medical experimental teaching in higher vocational education
Shuxiang LI ; Huimin JIN ; Jinzhong LI ; Huajie SHEN ; Ye TIAN ; Limei XIAO
Chinese Journal of Medical Education Research 2003;0(04):-
The authors have analyzed the present situation of teaching experiment in higher vocational education of china. And then the process of researching and practicing the basic medical experimental technique curriculum reform has been discussed from the aspects such as the teaching aims,curriculum setup,teaching content selection,teaching methods and education evaluation system for the purpose of exploring the experimental teaching mode to fulfill the requirements of the comprehensive career competence of higher vocational education.
10.The functional binding antibodies to novel purinoceptor selected from phage display library
Limei SHAN ; Yanling ZHAO ; Ping ZHANG ; Cheng JIN ; Guangming CAI ; Xiaohe XIAO
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To screen antibodies of novel purinoceptor as a marker for further study of the purinoceptor. Method BALB/c mice were immunized for 4 times with rat aortic endothelial cell. Then the phage display system was used to construct a single-chain Fv fragment (ScFv) cDNA library from the total RNA of immunized mice. The characteristics of novel purinoceptor not existing on vascular smooth muscle cell but on aortic endothelium were used to enrich the aortic endothelium specific antibodies. Induced with IPTG, these antibodies were secreted into the periplasm of E. coli. The functional experiment of novel purinoceptor named organ bath experiment was used to screen out the positive ScFv from the soluble expressed antibodies. Immunohistochemistry experiment was used for positive ScFv identification. Results The total mouse anti-rat endothelium lgG is 1 ∶16 000. 8?106 mouse anti-rat endothelium ScFv cDNA library was successfully constructed. After 4 times of rat endothelium and rat smooth muscle cells screening, 2 500 ScFv cDNA binding membrane of aortic endothelium was enriched. After 4 times of functional screening, a phage-ScFv named B inhibiting the adenosine induced NO dependent construction by 83.4%?21.6% was selected from the expressed antibodies. Immunohistochemistry experiment showed that ScFv-B combined with aortic endothelium specifically and functional experiment showed that ScFv-B did not have any effect on adenosine induced ileum contraction, indicating that ScFv-B specifically binding to the novel purinoceptor. Conclusions ScFv-B binding specifically to the novel purinoceptor was selected by phage display technique and functional screening experiment which provide a good marker for further study of the novel purinoceptor.