1.Application of isothermal titration calorimetry in molecular imprinting technique
Chinese Journal of Biochemical Pharmaceutics 2016;36(8):153-156
Molecular imprinting technique is a novel technology for preparing polymers with specific binding properties tosome specific molecules, and received widely attention in recent years.The article that was reviewed the applications of microcalorimetry in the molecular imprinting technique.The basic principle of microcalorimetry,characteristics and its advanced applications on evaluating imprinting effects of the molecularly imprinted polymers, screening of the monomers and the cross-linking agents, optimizing reaction conditions etc.were introduced.
2.Research on Early Nasogastric Feeding Applied to Treat Diffuse Axonal Injury
Shengfang LIAO ; Hanming CHEN ; Yingqing ZHANG
Journal of Chinese Physician 2001;0(02):-
5.Negative nitrogen balance nutritional index in the study group were significantly better than that of the control group(P
3.HPLC determination of ethyl p-hydroxybenzoate in Dragon's Blood
Qingyun ZHANG ; Langui CUI ; Yingqing HU ;
Chinese Traditional and Herbal Drugs 1994;0(02):-
Object To establish a HPLC method for determination of ethyl p hydroxybenzoate in Dragon's Blood. Methods Using C 18 reverse phase column and acetonitrile 1% acetic acid (31∶69) as mobile phase, detecting at 257 nm and quantitating with external standard method. Results The standard curves of ethyl p hydroxybenzoate showed good linearity over the range of 0.206-2.884 ng, r=0.999 8. The average recovery was 96.02% and RSD was 1.87%. Conclusion The method is quick and simple, and it is accurate and reliable for the determination of ethyl p hydroxybenzoate in Dragon's Blood.
4.Effects of General Anesthesia Combined with Epidural Block on Cardiovascular and Stress Response for Thoracic Surgery in Geriatric Patients
Suhe ZHANG ; Yingqing XIN ; Xiongshui FANG
Journal of Chinese Physician 2002;0(S1):-
Objective To study the effects of cardiovascular and stress responses and the feasibility during thoracic surgery for geriatric patients under general anesthesia combined with epidural block. Methods Thirty elderly patients ASAⅠ-Ⅱ, scheduled for elective thoracic surgery, were divided randomly into combined general and epidural anesthesia group(G+E)and general anesthesia group(G). In both groups general anesthesia was induced with propofol 1.5mg/kg, fentanyl 4?g/kg, atracurium 0.6mg/kg, and maintained with intravenous continuously of propofol 5~7 mg?kg -1 ?h -1 , intermittent iv bolus of fentanyl and atracurium. In group GE epidural was performed at T_ 5-9 and an epidural catheter was placed and 1% lidocain 5 ml was given before induction of general anesthesia, after intubation and remained the cardiovascular stable, 1% lidocain 5~10 ml was infused epidural space. Appropriate fentanyl was given before skin incision for analgesia. Blood samples were taken before anesthesia, 10 min, 30 min, 1 h, 2 h after skin incision and the end of surgery for determining of cortisol, norepinephrine(NE), epinephrine(E)and interleukin-6(IL-6); measured and recorded the mean artery pressure(MAP), heart rate(HR), general anesthetic dosage and the duration of postoperative revival. Results In group GE, serum cortisol at 10 min,30 min and 1 h after skin incision decreased significantly compared with those in group G( P
5.Novel small-molecule CDK2-cyclinA2 inhibitors: design, synthesis, and biological evaluation
Yingqing WEI ; Lu ZHANG ; Yutong HU ; Jian ZHANG ; Ying SHEN
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(3):330-336
Objective · To design and synthesize a series of benzenesulfonamide derivatives, test their inhibitory activity to CDK2-cyclinA2 kinase, and investigate the structure-activity relationship. Methods · Virtual screening was executed via computer-aided drug design according to the ATP binding site in CDK2-cyclinA2 protein crystal. A series of benzenesulfonamide derivatives were designed and synthesized on the basis of the interaction modes between the lead compound and the CDK2-cyclinA2. The biological evaluation of compounds was made through the CDK2-cyclinA2 in-vitro kinase activity detection system. Results · Twenty-nine new benzenesulfonamide compounds were prepared, and their inhibitory activity to CDK2-cyclinA2 was elicited. WZ-026 had the highest inhibitory parameter, which half maximal inhibitory concentration (IC50) was 3.81 μmol/L. Conclusion · By multipurpose utilization of virtual screening, chemical synthesis, and biological activity test, a benzenesulfonamide compound WZ-026 was found, which has great inhibitory activity towards CDK2-cyclinA2. Preliminary structure-activity relationship of compounds was obtained.
6.Difference of Dragon's Blood from different extract processing
Yingqing HU ; Jingze ZHANG ; Chenghang LIU ; Changlu DENG ;
Chinese Traditional and Herbal Drugs 1994;0(08):-
Object To identify the differences of chemical constituents of Dragon's Blood obtained by different extract processing. Methods The mentioned Dragon's Blood was analyzed by TLC, UV spectro photometry, and HPLC. Results The contents of dihydrochalcone in Dragon's Blood by the new extract processing were higher than that by traditional one's, while the contents of flavonoid and stibene were lower. Conclusion The heating free technology is a new technique that is an original with higher extract rate, and it is worth of spreading. It will promote the modernization of TCM.
7.Determination of loureirin A and B extracted from Sanguis Draxonis in two extract processed by RP-HPLC
Yingqing HU ; Qingyun ZHANG ; Xiaoguo HU ; Changhu DENG ;
Chinese Traditional Patent Medicine 1992;0(12):-
Objective: To establish HPLC method for the determination of loureirin A and loureirin B in Sanguis Draxonis Capsules.Methods: HPLC system included C 18 reverse phase column and acetonitrile 1% acetic acid (34∶66) as mobile phase, detection at 280nm and external standard method.Results:The standard curves of loureirin A was linear in the concentration range of 98~490ng, r =0.9996.The average recovery was 97.45%, RSD was 1.82%.The standard curves of loureirin B was linear in the concentration range of 43.2~259.2, r = 0.9993 .The average recovery was 96.92%, RSD was 1.57%.The contents of loureirin A and loureirin B in Sanguis Draxonis from heating free technology were higher than traditional technology.Conclusion: This heating free technology is a new technique that is a creation with higher extract rate,this method is worth populariging.
8.Systemic delivery of C Ⅱ TA siRNA reduces disease severity in collagen-induced arthritis
Danping PU ; Xiaoying WANG ; Jie ZHANG ; Yiqing ZHU ; Yingqing HU ; Xiaorong ZHOU
Chinese Journal of Microbiology and Immunology 2012;32(4):302-308
Objective To examine the therapeutic effect of C Ⅱ TA inhibition in collagen-induced arthritis(CIA),using a delivery system tailored to target C ⅡTA gene by small interfering RNA (siRNA).Methods Mice with collagen-induced arthritis were injected intravenously with C Ⅱ TA siRNA.The clinical score was monitored for up to 4 weeks after treatment.The severity of inflammation of mouse joint was evaluated by histological examination.Real-time PCR was used to determine the cytokine mRNA expression.Cytokine production was measured by ELISA from serum.T cell proliferation was examined by MTT method.Results IFN-γ and IL-17 were elevated in CIA mice,but were iuhibited significantly by C Ⅱ TA siRNA either prevention or intervention of autoimmune arthritis.Collagen specific T cell proliferation was significantly suppressed.Increased level of IL-4 by T cells was observed in C Ⅱ TA siRNA treated group compared with that of control group.Conclusion Our findings indicate that systemic RNAi-mediated C Ⅱ TA gene silencing is effective in the treatment of CIA and regulateds the balance of Th1/Th2 differentiation.
9.Construction of the Top-quality Course of Pediatrics
Xiaobo ZHANG ; Chao CHEN ; Guoying HUANG ; Yonghao GUI ; Yong ZENG ; Yingqing LU
Chinese Journal of Medical Education Research 2005;0(05):-
The article sums up the thinking and methods of the top-quality courses of Pediatrics constructed by the pediatric bed-sided teaching(PBL courses) and clinical training.The aim of the courses is to combine gradually lecture,question,discussion and practice,encourage active discussion,emphasize clinical ability and establish a new teaching method of pediatrics.
10.PBL Practice in Pediatrics Teaching
Xiaobo ZHANG ; Chao CHEN ; Guoying HUANG ; Yonghao GUI ; Yong ZENG ; Yingqing LU
Chinese Journal of Medical Education Research 2002;0(01):-
Pediatrics is a medical discipline,studying children health,growth and development,health care and disease prevention.To ignite medical students' interest in pediatrics,cultivate their creativity and ability in clinical practice,since February 2004,Pediatric Department in Children's Hospital of Fudan University has implemented the teaching pattern that combines traditional teaching practice with problem based learning(PBL) in students of seven-year medical training program,which has received positive feedback and wide approval from the students.