Nonsteroidal anti inflammatory drugs (NSAIDs) are among the most commonly used drugs in the world, but their use is limited because of their propensity to cause many severe adverse reactions. Cyclooxygenase 2 (COX 2) not only take part in inflammatory reaction, but also exert various physiological functions. Selective COX 2 inhibitors still have a series of adverse reactions. COX 3, a new COX cloned and expressed recently, can be inhibited selectively by acetaminophen and do not relate to inflammation. A hypothesis about COX family is assumed and seven isoforms are supposed in this article.

OBJECTIVE:To explore the effects of ERC61,an extract from Rhizoma Curcumae on hematopoietic functions of mice pretreated by cyclophosphamide(CTX) and the proper regime of the administration of ERC61.METHODS:The experimental mice were treated with CTX(100mg? kg-1? d-1) by ip for 3 consecutive days to establish leucopenia model.ERC61 was ip administered to the prevention group,the treatment group,and the combined group(prevention+ treatment).The numbers of blood leucocytes and bone marrow cell were counted by conventional methods;spleen index was measured as well.RESULTS:ERC61 enhanced the count of leucocytes and nucleated cells in bone marrow and improved the level of spleen index.CONCLUSION:ERC61 is able to improve the disorders of hematopoietic functions induced by CTX,and the combination therapy of prevention and treatment is the optimum one in efficacy.

OBJECTIVE:To establish a UV-Vis spectrophotometric method for content determination of Curdione in Nano-micelles loaded with Curdione.METHODS:Curdione was colored by sulfuric acid-vanillin reagent.The absorbance was measured by visible-spectrophotometry at a wavelength of 500nm.RESULTS:The content of Curdione in the range of 0.050～ 0.400mg? mL-1 was in accordance with the Lambert-Beer law(r=0.999 3).The average recovery was 99.14%,and the RSD was 1.23%(n=9).CONCLUSION:This method is simple,accurate and suitable for the content determination of curdione in Nano-micelles loaded with Curdione.

OBJECTIVE:To study the effects of Total sasponins of Pannax Notoginseng(PSN)on oxidative stress during atherosclerogenesis(AS)in rabbits accelerated by persistent inflammation.METHODS:A total of 24 Japanese big-eared rabbits were divided into control group,high lipid group,persistent inflammatory group,and PSN group to be treated accordingly.Serum levels of C reactive protein(CRP),nitric oxide(NO)and malondialdehyde(MDA)as well as the activity of superoxide dismutase(SOD)were given a dynamic monitoring;and aortic atherosclerotic plaque areas were measured.RESULTS:In the persistent inflammatory group,serum levels of CRP and MDA were increased significantly,but SOD activity and level of NO were decreased significantly,aortic atherosclerotic plaque area was increased obviously,and CRP level was positively correlated with both MDA content and plaque area,showing significant difference as compared with the high-lipid group(P

OBJECTIVE:To evaluate the safety of Chitosan DCX-16elementarily.METHODS:DCX-16was injected i.p.to observe the acute toxicity in mice.The local irritating effects were observed on tolerance test,cerato-conjunctiva and muscles stimulus test in rabbits.The cell shape and proliferative rate of3T3cells were determinated by MTT in cell culture with DCX-16.RESULTS:It showed that DCX-16had no irritation on the eyes and muscles in rabbits.Tolerance dose of DCX-16in mice was as high as3.0g/kg per day.Cell culture with DCX-16demonstrated that3T3cell's shape and growth were normal.The relative growth rate of3T3cells had no statistical difference between control and DCX-16groups on the2nd,3rd,4th day.CONCLUSION:DCX-16is safe.

Aim To observe the effects of GCIP-27(G protein competitive inhibitory polypeptide-27) on the structure of left ventricle in spontaneously hypertensive rats(SHR).Methods Thirty SHR rats of 12 weeks old were randomly divided into five groups(n=6):blank control groups,GCIP-27(10,30,90 ?g?kg-1,ip,bid)groups,and Losartan group(6 mg?kg-1),six Wistar-Kyotos(WKY) rats were as normal control.Systolic blood pressure(SBP)was measured once per two weeks with tail-sleeve methods.At the end of the 8th week,left ventricle weight index(LVWI)were determined.Myocardium structure was observed by polaroscope and transmission electron microscope.The area and content of myocardial interstitial collagen were treated for semiquantitative analysis by image analyzer system.Results The SBP in GCIP-27(10,30,90 ?g?kg-1)groups decreased significantly from the 2 nd to the 8th week by comparison with blank control group.GCIP-27(10,30,90 ?g?kg-1) lowered heart mass index(HMI)and left ventricular mass index(LVMI)markedly compared with blank control group(P

Object To investigate the effects of Panax notoginseng saponins (PNS) on myocardial Gs? mRNA expression of seriously scalded rat. Methods A 30% skin full thickness scald model was produced by immersing rat in 95 ℃ water for 10 s. The effects of PNS on myocardial Gs? mRNA level were observed with dot blotting hybridization and in situ hybridization technique; effects on cAMP and adenyl cyclase (AC) activities were determined with radioimmunoassay. Results Myocardial Gs? mRNA, AC activity and cAMP content were reduced significantly 3 h after scalding. PNS (100, 200 mg/kg) could markedly increase the level of myocardial Gs? mRNA expression. The elevated quantity was correlated markedly with PNS dosage (r = 0.95, P

BACKGROUND:With more and more elderly patients suffering lumbar degenerative disease undergoing internal fixation, infection after spinal internal fixation is a common complication in orthopedic surgeries, but its treatment strategy remains controversial.OBJECTIVE: To explore the curative efficacy of incision infection after internal fixation in the elderly with lumbar degenerative disease.METHODS: 197 patients with lumbar degenerative disease undergoing internal fixation and followed up for more than 2 years admitted in Department of Orthopedics, Beijing Shijitan Hospital Affiliated to Capital Medical University from January 2012 to January 2015, were analyzed retrospectively. The follow-up time was 2-4.9 years. There were 97 cases of lumbar stenosis, 29 cases of lumbar disc herniation, 33 cases of lumbar spondylolisthesis, 17 cases of degenerative scoliosis and 21 cases of lumbar compression fractures.RESULTS AND CONCLUSION: (1) Eleven patients experienced incision infection, including ten acute, and one delayed infection. (2) Among acute infected cases, three were superficial infection in three cases and seven had deep infection,who characterized as exudation (10/10), local pain (8/10) and fever (9/10). Acute infected cases received bacterial culture, drug sensitive test, antibiotic therapy, and debridement of the infected wound, and leaving all internal fixators in situ in all but one case. (3) For delayed infection, one patient had local pain, incision exudation, and intermittent fever,and then the internal fixators were removed. (4) Pseudarthrosis was not founded during 2-year follow-up in all patients.(5) These results suggest that for the elderly patients suffering lumbar degenerative disease with infection after internal fixation, intravenous antibiotics, debridement plus drainage are recommended, but without internal fixator removal, and repetitive debridement and drainage is a rational choice if necessary.

BACKGROUND:Deep vein thrombosis is a common complication following bone surgeries,so its prevention and treatment become critical.However,there are few studies on the incidence of deep vein thrombosis after spine surgery in the elderly.OBJECTIVE:To explore the diagnosis of deep vein thrombosis after spine surgery in the elderly and its incidence after intervention with low-molecular-weight heparin.METHODS:All patients undergoing spine surgery were randomly divided into experimental and control groups.Patients in the experimental group were subjected to the subcutaneous injection of 0.4 mL of low-molecular-weight heparin (4 100 IU) at 12 hours postoperatively,once daily for 7-14 days from the next day.Those received no intervention served as controls.The thromboplastin time,thrombin time,activated partial thromboplastin time,and level of plasma fibrinogen were detected before and after treatment.Color Doppler ultrasound results of the lower extremity vessel before and after treatment and postoperative drainage volume were recorded.RESULTS AND CONCLUSION:(1) In the experimental group,the lower level of plasma fibrinogen and slightly prolonged thromboplastin time,thrombin time and activated partial thromboplastin time were observed,but all were within the normal range.(2) The incidence of deep vein thrombosis in the experimental group (0％) was significantly lower than that in the control group (5％,P ＜ 0.05).(3) To conclude,low-molecular-weight heparin therapy significantly reduced the incidence of deep vein thrombosis after spine surgery.

The basic course of medical specialty is an important part of medical education. There are few studies on effective teaching of basic courses of medical specialty. Based on the course of Pharmacology, this paper discusses the connotation, influencing factors and strategies of effective teaching of basic courses of medical specialty. The factors influencing the effective teaching of basic courses of medical specialty are multiple, that mainly includes four dimensions: students, teachers, course resources and teaching environment. Strategies to improve teaching effect include strengthening the idea of education, positioning goals hierarchically, optimizing curriculum structure, and innovating education platform.