1.Development of pharmacology promotes new drug research and development
Chinese Journal of Pharmacology and Toxicology 2016;30(12):1243-1249
Pharmacology is a bridge discipline between medicine and pharmacy,betmeen basic medicine and clinical medicine,between life sciences and chemistry as well as material science. Phar?macology is closely related to many subjects,and is an indispensable subject in medical sciences. It plays an important role in the development of medical sciences. The main tasks of pharmacology development involve rational drug use,new drug research and development,and promotion of medical sciences and life sciences. During the whole process of new drug development,the development of pharmacolo?gy has played a positive role. As such,new drug research and development depends on the develop?ment of pharmacology. Pharmacology plays an important role in the development of new drugs and is involved in the whole process of research and development. Thus,it is a support subject for new drug development. Strengthening pharmacological research and improving the overall level of pharmacologi?cal in China are of great significance for promoting new drug research and development and ensuring ra?tional drug use.
3.Study on Pharmacological Key Problems of Druggability Evaluation for Novel Chinese Materia Medica
World Science and Technology-Modernization of Traditional Chinese Medicine 2017;19(3):432-438
The research and development (R & D) of novel Chinese materia medica (CMM) have made a great progress in recent years.But problems still exist in druggability evaluation of novel CMM,such as uncertain evaluation content and lack of key technology.Druggability evaluation is the key to the success or failure for R & D of novel CMM.Observation on the effect and safety of novel CMM is the core of druggability evaluation.The important pharmacological problems include the choice of evaluation indicator,clinical indication,analysis of material basis,investigation of mechanism,research on pharmacokinetics and safety evaluation.Modem technologies should be used in druggability evaluation.We should have a correct understanding of the concept of novel CMM.The grasp of the meaning of novel drugs and the essence of CMM theory will be helpful for R & D of novel CMM.
4.Discussion on Polymorphs in the Consistency Assessment of Generic Drugs
Herald of Medicine 2017;36(6):593-596
This study discussed problems in consistency assessment of generic drugs and analyzed effect of polymorphs on drug quality and its influence on consistency of curative efficiency.Relationship between evaluation method of polymorphs and curative efficiency was investigated.It showed that establishment of curative efficiency related evaluation indicators was necessary and improvment of techniques was important.Drug quality criteria should be added with requirement of curative efficiency control.Related information based on polymorphs could be provided for technical research in consistency assessment.
5.Development on neurodegenerative disorder modeling with induced pluripotent stem cells
Chinese Pharmacological Bulletin 2014;(9):1185-1188,1189
Remarkable advances in cellular reprogramming have made it possible to investigate relevant cell populations derived from induced pluripotent stem cells ( iPSCs ) of patients. Be-cause many diseases have its specific genetic information, using the cells to convert into iPSCs can build up a set of genetic pro-file of diseases. The iPSCs which contain the genetic contribution of the donor can be expanded and differentiated into cells of the affected lineages to show aberrant phenotypes in culture. To date, over fifty such disease models have been reported, and while the field is young and hurdles remain, we can foresee the huge potential of it in drug screening. Recent studies using iP-SCs to model various neurogenetic disorders are summarized. Compared to the traditional methods, we analyze the future de-velopment of iPSC based disease models and its past application on high-throughput screening ( HTS) and high-content screening ( HCS) .
6.Establishment and evaluation of intravascular thrombosis used for cerebral embolism model
Chinese Pharmacological Bulletin 2015;(11):1620-1622,1623
Aim To produce cerebral embolism rat model via in-travascularly formed thrombus. Methods Thrombus was formed in common carotid artery ( CCA ) by constant galvanic stimulation, then it was shattered and MCA was occluded. To i-dentify the feature of the model, focal cerebral blood flow ( CBF ) , cerebral infarction volume and behavior tests were measured. Thrombolysis with tissue plasminogen activator ( tPA) were observed. Results This model developed a reduction of blood flow (30% of baselines) within the MCA territory. Signifi-cant infarction and neurological disorder were observed 24 h after the embolism onset. Thrombolysis with tPA ameliorated the path-ological process which was mentioned above. Conclusion Cer-ebral embolism model induced by intravascular formed thrombus in rat is suitable for the research of pathology and thrombolytics for embolic stroke.
7.Progress in the study of phosphodiesterase-7 as a new target for anti-inflammatory and immune drug
Chinese Pharmacological Bulletin 1987;0(01):-
Phosphodiesterases(PDEs) is the only protein enzyme family,which catalyze the hydrolysis of cyclic nucleotide second messages(cAMP and cGMP).PDEs regulate many physiologic and pathologic processes.Recent advance showed that PDE7 hydrolyze cAMP exclusively and is divided into PDE7A and PDE7B. PDE7 mainly express in immune and inflammatory cells.The selective inhibition of this family generates profound,functional effects and PDE7 has been used as a therapeutic target for diseases related with inflammation,such as chronic obstructive pulmonary disease(COPD),rheumatoid arthritis and Alzheimers disease(AD).
8.Mechanisms of action of protein kinase C in myocardial preconditioning
Chinese Pharmacological Bulletin 1986;0(04):-
PKC plays a pivotal role in the mechanism of myocardial preconditioning. After preconditioning, PKC is activated and translocated to membranes and cytoskeleton structures by multiple endogenous substances such as adenosine, calcium, etc. Recent studies imply that MAPK carries the signal from PKC to the mitochondria K ATP channel and thus protect the heart.
9.Pathological significance and mechanism of advanced glycation end-products
Mianen SUN ; Guanhua DU ;
Chinese Pharmacological Bulletin 1987;0(03):-
Advanced Glycation End products (AGEs) are the products of non enzymatic glycationprotein. It has been demonstrated that AGEs are closely correlated to a variety of diseases such as diabetes,vascular complications,aging and renal diseases. AGEs play important roles in the development of these diseases. They can effect the function of cells and tissues directly, and also mediate pathological reactions through binding with special receptors. The present paper reviews the procedures of AGEs production,action mechanism and pathology of AGEs.
10.The progress in LOX-1 research
Yujuan LI ; Guanhua DU ;
Chinese Pharmacological Bulletin 1987;0(03):-
Lectin like oxidized low density lipoprotein receptor 1(LOX 1) is a type Ⅱ membrane protein belonging to the C type lectin family molecules which can act as a cell surface endocytosis receptor for oxidized LDL.LOX 1 can support binding, internalization and proteolytic degradation of oxidized LDL. And LOX 1 is involved in the platelet endothelium interaction and mediates phagocytosis of aged/apoptotic cells in endothelial cells ox LDL. Purification of soluble LOX 1 and the N terminal amino acid sequencing identified the two cleavage sites (Arg 86 Ser 87 and Lys 89 Ser 90 ). LOX 1 expression is not constitutive, but can be induced by proinflammatory stimuli, such as Angiotension Ⅱ, fluid shear stress and so on.