Objective Inaccurate dosing is an important cause of medical malpractice, how to adjust the medication dose to overcome the excessive deviation will be discussed in this paper. Methods Gold zone method was proposed on the basis of the probability theory and mathematical statistics for handling inaccurate dosing problems. Investigation and study in large sample size was carried out on adverse reactions of Cefamandole Nafate for Injection by adopting the method. Results The conclusions from the super large sample size test indicate that there is highly significant difference of total adverse reaction rates between taking values within and outside golden zone of dosage, and the adverse reaction rate of taking values within golden zone is significantly lower than that of outside golden zone. It is noteworthy that when dosage was lower than golden zone,the adverse reaction rate was significantly increased,which is more than 4 times of that within golden zone. Conclusion It is effective measures and simply and easy to apply that taking values within golden zone of dosage reduce adverse drug reactions,probability within golden zone less than 1/4 range of experience that contains the actual demand of the body up to 70%.

Objective To investigate the effect of autologous transplantation of circulating endothelial progenitor cells (EPCs) on oleic acid-induced acute lung injury (ALI) in rabbits. Methods Thirty New Zealand long ear rabbits weighing 1.8-2.0 kg were randomly divided into 2 groups ( n = 15 each): normal saline group (group NS) and EPC group. ALI was induced by iv oleic acid 80 mg/kg. EPC (106/200 μl) or equal volume of normal saline (NS) was administered iv at 4 h after iv oleic acid injection. Arterial blood samples were obtained before (T0) and at 4, 8, 12, 24 and 48 h (T1-5) after oleic acid injection for blood gas analysis and determination of serum vascular endothelial growth factor (VEGF) concentration. The animals were then scrificed (at T5 ) and the lungs were removed for microscopic examination and determination of W/D lung weight ratio, Pulmonary infiltration of PMN and non-PMN was counted and hyaline membrane formation and hemorrhage were examined. Results PaO2/FaO2 ratio and serum VEGF concentration were significantly higher in group EPC than in group NS. Infiltration of leukocytes in the lung was significantly reduced by EPC transplantation. EPC also decreased lung water content, hyaline membrane formation and hemorrhage in the lungs. Conclusion Autologous transplantation of circulating EPC can ameliorate oleic acid-induced acute lung injury in rabbits.

Stroke is a major cause of death and disability in China.Some strategies to reduce the burden of stroke is to attach importance to thrombolytic therapy within 6 hours,to strengthen public education,to implement systems-level improvements in the prehospital and stroke unit,and to use statins and antiplatelet drugs to prevent and treate stroke.

WGA-HRP was injected into the inferior colliculus in the rat in order to study the non-auditorial afferents of the inferior colliculus. In the diencephalon and truncus encephali, retrograde labeling was observed in many non-auditorial regions: bilateral (with contralateral predominance) cuneate nucleus, gracile nucleus, nucleus of spinal tract of trigeminal nerve, nucleus medullae oblongatae centralis dorsalis; bilateral (with homolateral predominance) locus ceruleus, nucleus reticularis pontis oralis, laterodorsal tegmental nucleus, substantia nigra, sub-parafascicular nucleus, perifornical nucleus; bilateral medial parabrachial nucleus, deep tegmental nucleus of midbrain, lateral hypothalamic area; homolateral deep layer of superior colliculus, zona incerta; contralateral nucleus of solitary tract; and posteromedian septum, central tegmental nucleus, dorsal nucleus of the raphe. The afferent neurons from cuneate nucleus, gracile nucleus, nucleus of spinal tract of trigeminal nerve, nucleus of solitary tract mainly located below the level of obex. The results mentioned above suggested that the inferior colliculus is not only an auditorial relay nucleus, but also a complex body which is of different functions.

Bacterial communities usually develop biofilms abound in nature niche. The development of biofilm is a highly dynamic and complex process coordinated by multiple mechanisms, of which two-component system and quorum sensing are two well-defined systems. Biofilm is involved in the virulence of many pathogens. Therefore, targeting the key factors involved in the biofilm formation represents a novel and promising avenue for developing better antibiotics.

Up to date, there are two types of drugs approved to treat hepatitis B: interferons and nucleos (t) ide analogues. However, the therapies are limited in the clinical context because of the negative side effects of interferon-α and the development of substantial viral resistance to nucleos (t) idic inhibitors. Therefore, new drugs with novel structures and mechanisms are needed. In this article, the drugs approved by FDA or the European Commission for treating chronic hepatitis B virus infection, as well as those under clinical trials, and several compounds in preclinical studies are reviewed. Additionally, some potential targets and strategies to combat chronic hepatitis B virus infection are discussed.

Objective To investigate the efficacy and safety of percutaneous pericardial drainage with indwelling catheter via the puncturing route of left sternal broader in the third or fourth interspace Methods In the 38 patients with moderate to large pericardial effusion, the pericardial echo free space and the forecasted puncturing distance were measured with two dimensinal echocardiolgraphy (2DE) prior to pericardiocentesis in the three sites: subxiphoid, cardiac apex and the left sternal broader in the third or fourth interspace Under the guidance of 2DE, pigtail catheters were percutaneously indwelled for pericardial drainage via the location of left sternal broader in the third or fourth interspace Results Among the three sites, there were no difference of echo free space measured by 2DE, and the forecasted distance of advancing needle examined in left sternal broader was the smallest The procedures of indwelling catheter drainage for pericardial effusion were successfully performed in all the 38 patients Catheters lying in posterior pericardium were found in 94 8% of the patients (36/38) There were no cases with puncturing related complications, effusion leaking into pleurum or subcutaneous tissue Only 1 case was complicated with neural mediated syncope on the third day after indwelling catheter Conclusion Pericardiocentesis using left sternal broader route is a safe and simple approach for indwelling catheter drainage in patients with pericardial effusion This route may be a promising option for clinical use widely

Object To study the effects of different growth regulators and organic additives on rooting of regenerated shoots from Dendrobium huoshanense C Z Tang et S J Cheng protocorm like bodies Methods In order to induce root development, the regenerated shoots were cultured on MS medium containing 3% sucrose and 0 8% agar and supplemented with NAA, IBA, BA, KT, banana mud or amino acids at different concentrations During rooting induction, the development of roots was observed and the frequency of rooted shoots was scored Results The frequency and the process of root initiation were significantly influenced by different growth regulators or organic additives For initiation and development of roots, the suitable concentration of NAA, IBA, BA, KT, banana mud or amino acids was 0 2 , 0 1, 0 8, 0 8 mg/L, 20% and 0 1%, respectively Conclusion In all media tested, NAA, IBA or banana mud display greater effects on rooting of regenerated shoots of D huoshanense than others and KT enables shoots to keep green

Researches have demonstrated that gradually increased morbidity and mortality of cardiovascular disease may be related to vitamin D deficiency.But there are few randomized controlled studies about preventing cardiovas-cular events via vitamin D supplementation.This article summarizes investigate progress for related matter recently.

Objective To clarify the possible role of cyclooxygenase-2(COX-2), intercellular adhesion molecule-1(ICAM-1) and E-selectin in the inflammatory injury induced by cerebral ischemia and reperfusion. Methods The focal cerebral ischemia and reperfusion model was induced by a suture occlusion of the right middle cerebral artery. The rats were randomly assigned to four groups: sham operated group; 4 h,22 h and 46 h reperfusion groups. The expression of ICAM-1, E-selectin and COX-2 were detected by immuno-Western blot and immunohistochemical method. Myeloperoxidase (MPO) activity was detected by a commercial MPO kit. Results In the right cortex and striatum of the sham operated group and the 4 h, 22 h and 46 h reperfusion groups, the relative values of COX-2 were 0.7642?0.0763, 1.5382?0.1047, 1.6491?0.3265, 1.8020?0.3719 and 0.7104?0.0891, 2.2061?0.2143, 1.7897?0.3537, 1.8018?0.5703 respectively; the relative values of ICAM-1 were 0.6845?0.0531, 0.9115?0.0422, 0.9426?0.0407, 1.0756?0.0467 and 0.6583?0.0361, 0.9439?0.0746, 0.9975?0.1532, 0.8808?0.0497 respectively. Significant increase of MPO activity and expression levels of COX-2, ICAM-1 and E-selectin were shown from 4 h to 46 h in the striatum and cortex of rats following reperfusion. Immunohistochemical staining showed that the number of ICAM-1 and E-selectin positive vessels was increased in the border of ischemia. The positive cells of COX-2 were almost neurons in the cortex, but in the striatum, the cells were neurons, glias and vessel endothelium. Positive correlation between COX-2 and ICAM-1 expression in the cortex(n=6,r=0.973,P