0.05).The relative bioavailability of experimental preparation vs.reference preparation was(93.80?12.24)%.CONCLUSION:Telmisartan capsule has the same bioe-quiavailability with telmisartan tablet.

Animals ; Arrhythmias, Cardiac ; Humans ; KATP Channels ; Mitochondria ; Myocardial Ischemia

Lead compound optimization plays an important role in new drug discovery and development. The strategies for changing metabolic pathways can modulate pharmacokinetic properties, prolong the half life, improve metabolism stability and bioavailability of lead compounds. The strategies for changing metabolic pathways and improving metabolism stability are reviewed. These methods include blocking metabolic site, reduing lipophilicity, changing ring size, bioisosterism, and prodrug.

The blood-brain barrier (BBB) exerts its central nervous system (CNS) protective function as it hinders the delivery of diagnostic and therapeutic agents to the brain. With the development of nanotechnology during the last thirty years, the nanocarriers for delivering drugs make it possible to transport drugs across the BBB. The brain-targeted drug delivery system usually consists of two parts: nanocarriers and brain-targeted strategies. In this review, several kinds of nanocarriers are introduced for brain-targeted drug delivery. We focus on several possible strategies for brain-targeting and comment on their advantages and disadvantages in application.

Obesity in children and adolescents has become a public health problem of global attention.Although children obesity has less significant cardiovascular events,many obese children have early vascular lesion and endothelial dysfunction.Therefore,the risk factors of cardiovascular injury should be evaluated and intervented as soon as possible.

Objective To explore the main points of early diagnosis,the principles and the efficacy of surgical treatment of Lisfranc injury.Methods The clinical data and follow-up results of 23 cases of patients with Lisfranc injury treated from April 2004 to February 2011 (17 males,6 females,aged from 19 to 57 years old) were collected and analyzed.All patients underwent open reduction and internal fixation,among them,13cases with Kirschner wire fixation and 10 cases with screws fixation.Efficacy was evaluated in accordance with Maryland foot score.Results Twenty-one patients were followed up for 6 - 46 months with an average of (28.5 ± 2.6) months.In the last follow-up no patients has internal fixation fracture,loss of reduction and other complications.The score was 56 - 97 points with an average score of ( 86 ± 8 ) points.The results showed excellent in 6 cases,good in 10 cases and fair in 3 cases,good rate was 76.2％.Conclusion Lisfranc injury can be diagnosed by early signs and symptoms,and can be confirmed by combining with radiographic examination.Lisfranc injury should be treated with open reduction and internal fixation with Kirschner wire or screw,both of the two fixation methods can achieve good results.

Ginsenoside is the main component of antitumor effects of traditional Chinese medicine (TCM) Ginseng. Clinical pharmacological studies have shown that Ginsenoside Rb1 can inhibit P-gp which can lead to efflux of drugs, enhance the sensitivity of cells to drugs, reduce the multidrug resistance of the tumor cell, and maintain the immune function of the body to tumor cells. Ginsenoside Rg3 can impact tumor cell protein expression, play a role in cell division, induce tumor cell apoptosis and inhibit tumor growth of blood vessels. Ginsenoside Rh2 may play an antitumor effect by inhibiting tumor cell proliferation and metastasis, inducing tumor cell apoptosis. This article ex-plained the antitumor effects and mechanism of Ginsenoside Rb1, Rg3, Rh2 in order to provide theoretical evidences for the clinical development and application.

Objective Using principal components analysis and weighted TOPSIS method to make objective and accurate evaluation of hospital operation management quality.This aims at proving whether such methods are scientific and feasible for comprehensive evaluation for the quality of hospital operation management and providing the basis for hospital decision making.Methods 15 typical Hospital Performance Indicators were chosen from a cancer hospital during 2008-2012,which were subject to TOPSIS method and principal components analysis,weighted TOPSIS method for comprehensive evaluation.Results The results with principal components analysis and weighted TOPSIS method conform to the actual hospital conditions and prove the rising quality of operation management of the hospital.That is,the closer the date,the higher the ranking.Conclusion Principal components analysis and weighted TOPSIS method are proven flexible,practical,scientific and reliable and suitable for popularization and application in the quality evaluation of hospital operation management.

OBJECTIVE: To summarize the recent progress and clinical application of percutaneous coronary intervention and to seek the direction of new developments.METHODS: A computerized online database of Pubmed was searched to identify articles published from May 2000 to February 2009 with the key words of "drug eluting stents, peroutaneous coronary intervention, and coronary disease". There were 154 articles were retrieved by computer, by reading tities and Abstract s, 27% literatures were remained after excluding 74 irrespective papers and 53 repetitive studies.RESULTS: An ideal drug-eluting stent (DES) was comprised of a platform, a drug carrier vehicle and a pharmaceutical compound in harmony with each other. With the ongoing development of DES materials and drugs, more effective DES was introduced in the practice. Recently, clinical data on DES encourage the interventional cardiologist to use DES in more challenging coronary lesions, such as chronic total occlusions, complex lesions and multi-vessel lesions. However, the safety and efficacy of DES need further attention. Therefore, novel strategies including bioabsorbable stents, and pro-healing agents coated stents were promising.CONCLUSION: The development of percutaneous coronary intervention is a breakthrough in intervention cardiology that brings great benefit to patients with coronary disease, especially for restenosis and revascularization. Nevertheless, more endeavour will be necessary to create PCI with high efficacy as well as low risk, and safety and effectiveness of PCI in patients with ST-segment evaluation myocardial infraction and stent fracture prevention need further study.

Solid phase microextraction(SPME) can be effectively used to extract volatile and semivoltaile organic compounds from different environmental matrix. In this paper, we utilize headspace-SPME technique combined with capillary gas chromatography (CGC) and a laboratory modified flame photometric detector using quartz surfaceinduced luminescence (QSIL-FPD) for analyzing butyltin compounds in sediments. The detection limits of mono-,di-, and tri-butyltin compounds, based on the signal equal to 3 times the baseline noise are 16.9 ng/g, 1.58 ng/g adn 0.17 ng/g, respectively.