Humans ; Oral Medicine ; Photofluorography

Acute Disease ; Electrocardiography ; Humans ; Myocardial Infarction ; chemically induced ; physiopathology ; Poisoning ; complications ; physiopathology

Objective To analyze drug resistance of pathogenic bacteria from the blood culture and distribution in clinical departments,and to guide the rational clinical drug use.Methods We retrospectively analyzed 11 275 samples of blood cultures in The Central Hospital of Wuhan from 2012 to 2014.The blood specimens were cultured by VersaTREK(USA).The pathogenic bacteria were identified and their drug resistance was analyzed by BD-PHOENIX 100 automicrobiological identification systems(USA).Results Among the 11 275 blood cultures,636 bacterial strains were detected.The top four bacterial strains were Escherichia coli,Staphylococcus aureus,Klebsiella pneumonia and Enterococcus f aecium.A vancomycin-resistant Enterococcus faecium strain and a pandrug-resistant Klebsiella pneumoniae strain were detected.The top three clinical departments with distribution of pathogens were Gastroenterology Department,Nephrology Department and Intensive Care Unit (ICU).Pathogens isolated from ICU were evenly distributed.Conclusion Distributions of pathogenic bacteria in the blood culture are different in clinical departments.Identification of pathogenic bacteria and result of drug susceptibility can reduce use of broadspectrum antimicrobials and enhance antimicrobial de-escalation.

To study the pharmacokinetics of ginsenosides Rg1 and its metabolites after iv and oral administration in Wistar rats, the LC-MS/MS method was selected to determine ginsenosides Rg1 and its metabolites in plasma and their pharmacokinetic parameters were calculated. After oral administration of ginsenosides Rg1 to rats, ginsenosides Rg1, Rh1, F1 and protopanaxatriol (Ppt) could be detected in plasma. Their Tmax were 0.92, 3.64, 5.17, and 7.30 h, respectively; MRT were 2.68, 5.06, 6.65, and 5.33 h, respectively; AUC(o-t), were 2 363.5, 4 185.5, 3 774.3, and 396.2 ng x mL(-1) x h, respectively. After iv administration of ginsenosides Rg1 to rats, ginsenosides Rg1, Rh1 and FI could be detected in plasma. Their T1/2betaS were 3.12, 5.87, and 6.87 h, respectively; MRTs were 1.92, 5.99, and 7.13 h, respectively; AUCo-tS were 1 454.7, 597.5, and 805.6 ng x mL(-1) x h, respectively. So, it can be concluded that after oral administration, the amounts of metabolites were higher than the prototype in vivo, and the distribution and elimination of the metabolites were relatively slow. After iv administration, the amount of prototype were higher than that of the metabolites in vivo, and the distribution and elimination of the metabolites were relatively slow.

OBJECTIVE:To provide reference for further comprehensive evaluation of the improvement of the accessibility of family medicines after the implementation of the new health care reform. METHODS:Sampled as 180 households from 2 urban ar-eas,2 counties and 2 rural areas in Chengdu,a questionnaire survey was adopted based on the WHO’s manual for the Household Survey to Measure Access and Use of Medicines to investigate the situation of drug use,storage and accessibility,and the results were statistically analyzed. RESULTS:Totally 180 questionnaires were sent out,179 were effectively received with effective recov-ery of 99.44%. In the terms of medicines taken for the acute illness,there were more than 60% rural households obtained drugs from the public health care facilities,while more than 60% counties households purchased drugs in public medical and health insti-tutions;in the terms of medicines taken for the chronic illness,the proportion of households reporting a chronic illness who did not take any medicines was low(3.80%);in terms of medicines storage,the proportion of households without reserve drugs was low (13.41%). In terms of drug accessibility,the proportions of respondents who agreed that the location and opening hours of their public healthcare facility were convenient were high;there was no situation for“patients did not take prescribed drugs because med-icines were not available at the healthcare facility and drug store”,while more than 95% respondents who agreed that drugs were available at their public health care facilities and drug stores;the essential medicines in the household use of chronic drugs in Chengdu accounted more than 60%;more than 85% can afford the drug costs,while the proportion of the monthly costs for acute illness and chronic illness in the total month costs was low;the health insurance coverage reached 90% in the survey households, but the proportions of households which could reimburse acute,chronic illness drug cost were lower(14.13% and 12.66%). CON-CLUSIONS:At present,the level of drug accessibility in Chengdu is high;the implementation of National Essential Medicines System has a positive effect on reducing the economic burden of chronic disease family. But there are shortcomings in the Medicare reimbursement levels and antibiotics use,it is suggested to take effective measures to solve it,such as exploring the stable and ef-fective medical insurance fund raising channels,improving the compensation level and the level of insurance reimbursement,formu-late and implement the corresponding antibacterial drugs supervision system and regulate the rational use of antibiotics in residents.

In order to investigate the effect of deep brain stimulation on diseases such as epilepsy, we developed a closed-loop electrical stimulation system using LabVIEW virtual instrument environment and NI data acquisition card. The system was used to detect electrical signals of epileptic seizures automatically and to generate electrical stimuli. We designed a novel automatic detection algorithm of epileptic seizures by combining three features of field potentials: the amplitude, slope and coastline index. Experimental results of rat epileptic model in the hippocampal region showed that the system was able to detect epileptic seizures with an accuracy rate 91.3% and false rate 8.0%. Furthermore, the on-line high frequency electrical stimuli showed a suppression effect on seizures. In addition, the system was adaptive and flexible with multiple work modes, such as automatic and manual modes. Moreover, the simple time-domain algorithm of seizure detection guaranteed the real-time feature of the system and provided an easy-to-use equipment for the experiment researches of epilepsy control by electrical stimulation.
Algorithms ; Animals ; Deep Brain Stimulation ; instrumentation ; Disease Models, Animal ; Electroencephalography ; Epilepsy ; diagnosis ; Equipment Design ; Rats ; Seizures ; diagnosis

Objective To investigate the effect of ulinastatin (UTI) on the expression of brainderived neurotrophic factor ( BDNF ) and remyelination in mice with experimental autoimmune encephalomyelitis ( EAE).Methods Twenty-four C57BL/6 mice were randomly divided into UTI group (U),normal saline treated group (S) and normal control group (N,n = 8,respectively).Demyelinations in the spinal cord were observed by solochrome cyanin staining.The expression of BDNF,myelin basic protein (MBP),and 2',3 '-cyclic nucleotide 3'-phosphodiesterase (CNP) in brain tissue of each group were evaluated by Western blot.Results Average clinical scores in group U at the 12,13,14,22,23,31,33,34 and 35 days were 0,0.25,0.38,0.63,0.63,0.40,0.40,0.40 and 0.40 respectively.They were significantly lower than group S at the same time ( U= 16.00,15.00,14.50,7.50,0.00,14.50,14.50,12.00 and 14.50,all P ＜0.05).Solochrome cyanin staining showed that demyelination of spinal cord in group U was also significantly improved than group S.Expressions of BDNF ( 1.96 ± 0.29),MBP (2.67 ± 0.48 ) and CNP ( 1.75 ± 0.20) in group U were all significantly higher than group S ( There were 0.80 ± 0.15,1.36 ± 0.38 and 1.06 ± 0.18 respectively,all P ＜ 0.05).Conclusions UTI has protective effect on EAE.The possible mechanism is that it could promote remyelination,and protect oligodendrocytes and neurons in EAE model by increasing BDNF expression in brain.

Objective To establish the rapid purification of Coxsackievirus A16 using ultracentrifugation .And To prepare and i‐dentify the neutralizing monoclonal antibody against CA16 .Methods The CA16 culture supernatant was harvested and then con‐centrated by 100K capsule .The concentration of CA16 was purified by cesium chloride ultracentrifugation .Purification of CA16 were identified by transmission electron microscopy .BALB/c mice were immunized with inactivated CA16 .Spleen cells were harves‐ted and fused with SP2/0 myeloma cells ,hybridoma cell strain secreting mAb against CA16 were objected to screening .Character‐ization of the prepared mAb were analyzed by ELISA and microneutralization assay .Results The purified CA16 method of cesium chloride gradient ultracentrifugation was established ,TEM analysis was showed that CA16 particles have icosahedral structure ,the diameters of the viral particles were approximately 20-30 nm .Two hybridoma cell strains secreting mAb against CA16 were ob‐tained ,the subtypes of two mAbs were IgG2a ,the binding titers of Anti/CA16/5 and Anti/CA16/10 were 103 and 104 respectively . Neutralizing titer of the two mAbs were 1∶256 and 1∶1 024 respectively .Conclusion Establishment method of cesium chloride gradient ultracentrifugation was performed to purify CA16 ,the two mAbs with neutralizing ability to against CA16 may become ap‐plication of treatment and vaccine .

According to interactive teaching,Problem-based Learning (PBL),visual teaching and other theories,combining with the characteristics of medical practice teaching,the paper puts forward a set of informatization methods used for medical teaching and practice,verifies that the application of informatization technology to medical teaching can obviously improve the teaching efficiency and quality,and meanwhile proposes the follow-up construction contents,in order to provide reference for further development of informatization medical teaching.

Objective To investigate in knowledge rate of 120 first aid and satisfaction rate with emergency services among Nanchong citizens. Methods 360 patients who received prehospital first aid from three hospitals and their accompanies were selected from January to June 2010. The investigation content included knowledge rate of 120 first aid and satisfaction rate with emergency services. Results Results showed that about half of those surveyed still did not know the emergency phone"120" and its function, lacked self-help and self-protection knowledge, some respondents felt quite helpless upon daily life of electric shock, gas poisoning, coma and traumatic accidents. The attitude of the majority of emergency personnel was good or better, but still very stiff or irresponsible attitude existed in those few. This undermined the "120" and the image of credibility and emergency personnel. Conclusions There is an urgent need for universal coverage of on-site first aid knowledge and enhance awareness of first aid. Full-time staff in emergency department must pay close attention to the knowledge of first aid training, mastering the technique of bleeding control and bandaging, fixing, handling and CPR, as well as the use of instruments and equipment equipped in vehicles. Only in this way can we continuously improve the treatment of critically ill patients and increase survival rate.