Chitosan and it's derivatives have good biologic and particular physical and chemical properties. They have a wide applied foreground on drug preparations. This study introduced the recent advances of them based on widely researching the information and the actual works, and provided reference for the study of oral drug preparations.

This paper reports the methods of inducing animal model of abdominal aortic aneurysm(AAA) and the research on etiology.The formation of AAA is the result of cooperation of multifactors such as genetic and biochemistric facfors.Different animal models of AAA can provide a possibility in researching the etiology and pathogenesis of AAA etc, and useful in judging the therapy and prognosis .

Objective To evaluate the physical dependence of Zhixieling capsule.Methods The physical dependence of Zhixieling capsule was observed by mouse jump test,rat precipitation test and rat natural withdrawal test.Results Zhixieling capsule showed no obvious withdrawal symptoms.Conclusion Zhixieling capsule has no physical dependence.

Objective To explore the correlations between quantitative parameters of dynamic contrast-enhanced MRI ( DCE-MRI) and nasopharyngeal carcinoma ( NPC) clinical stage.Methods 69 patients with NPC were selected from Oct 2013 to Oct 2015 in Shaoxing People's Hospital,39 men and 30 women,aged 39-76 years old,average 50.6 ±10.5 years old.All patients underwent clinical staging,DCE-MRI and histopathological examina-tion before treatment.Clinical stages were determined based on Chinese 2008 staging system.Value of the volume transfer constant ( Ktrans) and the extravascular extracellular space volume per unit volume of tissue ( Ve) was detec-ted by bi-compartmental pharmacokinetic model.The correlations between quantitative parameters and clinical stage were analyzed by Pearson correlation analysis.Results Mean Ktrans and Ve for NPC were (0.532 ±0.156) mL/min/100cm3 and (0.982 ±0.356),respectively.Ktrans of NPC showed negative correlation with clinical stage (r=-0.506,P=0.001),T stage (r=-0.326,P=0.014),N stage (r=-0.296,P=0.017) and M stage (r=-0.312,P=0.015),while Ve showed positive correlation with clinical stage (r=0.415,P=0.002),T stage (r=0.478,P=0.001),N stage (r=0.318,P=0.015) and M stage (r=0.346,P=0.011).Conclusion DCE-MRI quantitative parameters are significantly related to clinical stage of NPC,which has important values for clinical treat-ment and prognostic assessment.

OBJECTIVE:To explore the ward round model of clinical pharmacists.METHODS:The ward round model of clinical pharmacists was designed and explored based on clinical practice.RESULTS & CONCLUSION:Clinical pharmacists can engage in ward rounds either in cooperation with physicians or alone in special department,or by targeting at those patients using certain drugs.Each model has its distinctive characteristics and clinical pharmacists can choose suitable model based on their own level as well as the conditions in software,hardware and environment so as to facilitate rational administration.

Extracranial-intracranial arterial bypass, an elegant procedure, was first performed and developed gradually by M. Gazi Yasargil. It has been used in the management of ischemic cerebrovascular disease, moyamoya disease, intracranial aneurysms and brain tumors.This article focuses on its application in the ischemic cerebrovascular disease, and reviews it from the aspects of cerebral hemodynamics of ischemic cerebrovascular disease, indications for arterial bypass, preoperative evaluation, operating modes, intraoperative assessment,complications, postoperative care and prognosis.

OBJECTIVE:To discuss the possibility of null stock in hospital drug storehouse.METHODS:The current situation of the drug storehouse of our hospital and pharmaceutical company of our district,and the existing problems in implementation of null stock were analysed.RESULTS & CONCLUSION:There exist difficulties in carrying out complete null stock in hospital drug storehouse now,however,if computer network is adopted and the drug storage is shared by both hospital and pharmaceutical company,implementation of null stock in hospital drug storehouse will be practical.

Adolescent ; Adult ; Aged ; Animals ; Catfishes ; Ciguatera Poisoning ; Eggs ; adverse effects ; Female ; Humans ; Male ; Middle Aged ; Young Adult

AIM:To put forward the suggestions for standardizing the pharmacoeconomic research.METHODS:The background of formulation and main points of Canadian Guidelines for the Pharmacoeconomic Evaluation were introduced and its recent development was described.At the same time,we put forward our tentative plan about establishing Chinese guidelines for the pharmacoeconomic evaluation.RESULTS ＆ CONCLUSION:A series of guidelines for the pharmacoeconomic evaluation should be established,which is approved by departments of social safeguard,drug supervision and public health administration,to standardize the pharmacoeconomic research.The goverment should make corresponding policy publicized and make pharmacoeconomic evaluation connect with drug price,clinically rational drug use,catalog of classified management of drugs and catalog of drugs in medical insurance.A pharmacoeconomic framework,which conforms China's national conditions and is controlled by goverment,will established.

Reaction of chitosan with glucose, galactose and lactose was performed in lactic acid MeOH to give corresponding schiff's base derivatives, the following reduction was carried out in the presence of sodium cyanoborohydride to prepare branched chain water soluble chitosan derivatives. The structure of derivatives were Confirmed by 1 HNMR and 13 CNMR.