Establishment of ELISA method for testing tobacco mosaic virus (TMV) infecting Zingiber officinale Rosc / 中国免疫学杂志

Objective:In order to establish ELISA method for testing tobacco mosaic virus (TMV) infecting Zingiber officinale Rosc.Methods: Tobacco mosaic virus(TMV) infecting Zingiber officinale Rosc was tested by RT-PCR.Zingiber officinale Rosc leaves which only contained TMV were choiced.TMV particle was purified by centrifugation method.TMV CP was purified through preparation electrophoresis including 12％ SDS-PAGE first and then 5％-20％ gradient SDS-PAGE.Polyacrylamide gel contained TMV CP was ground into suspension.Mice were immuned with the suspension and antiserum was obtained.Antiserum quality was tested by Western blot and ELISA test.IgG was purified through affinity chromatography method.IgG solution was concentrated and dialyzed to a suitable concentration.The IgG then mixed with glycerol.Results: IgG in antiserum only combined with TMV CP protein and it could combine with nature TMV particle CP protein.Its quality was up to standard.Conclusion: Establishment of ELISA method for testing TMV infecting Zingiber offcinale Rosc is successfull by using this IgG.

Prognostic value of first documented rhythms in patients with in-hospital cardiac arrest / 中华急诊医学杂志

Objective To evaluate the prognostic value of the first documented rhythm in patients with in-hospital cardiac arrest.Methods The clinical data of 62 in-hospital cardiac arrest patients collected from May 2011 to April 2016 were reviewed.Multiple regression analysis was performed for determination of the factors relevant to ROSC.The patients were divided into defibrillative rhythm group [ventricular fibrillation (VF) /ventricular tachycardia (VT)] and non-defibrillative rhythm group [pulseless electrical activity (PEA) /asystole] according to the first documented rhythm after cardiac arrest.The differences in rate of restoration of spontaneous circulation,number of survival at hospital discharge and those discharged with favorable neurological outcome were compared between groups.Results Logistic regression analysis showed that non-defibrillative rhythm was related to low rate of ROSC.Rate of ROSC (x2 =6.90,P =0.01),number of survival at hospital discharge (x2 =10.49,P =0.00) and those discharged with favorable neurological outcome (x2 =14.70,P =0.00) were higher in the defibrillative rhythm group,while there was no difference in outcomes between the VF and VT groups.There was no difference in consequence found between the PEA and asystole groups.Conclusion Rate of restoration of spontaneous circulation,number of survival at hospital discharge and those discharged with favorable neurological consequence were higher with defibrillative initial rhythm.

Effect of potassium chloride on restoration of spontaneous circulation and survival rate in rat with ventricular fibrillation / 中华急诊医学杂志

Objective To study the effect of potassium chloride (KCl) before CPR on successful resuscitation of rats with ventricular fibrillation (VF).Methods Sprague-Dawley (SD) rats with VF induced by alternating electricity current were randomly (ramdam runmber) divided into KCl group and normal saline (NS) group.Rats of two groups were prepared with 0.8 mL/kg of 2.5％ KCl in KCI group and equivalent volume of NS in NS group instead before CPR.The resuscitation was considered to be failure if ROSC was absent for 10 min.The comparisons of time required for ROSC,the average attempt of defibrillation,the average joule used for defibrillation,ROSC rate and 72 h survival rate were carried out between the two groups.Results The length of time required for ROSC in the KCl group (n =10) was shorter than that in NS group (n=10) [(283.89±152.44) svs.(404.38±164.27) s] (t=1.369,P =0.196).The average attempt of defibrillation in KCl group were fewer compared to the NS group [(1.50 ± 0.75) times vs.(2.66 ± 0.57) times,(t =2.701,P =0.022)],the average joule used for defibrillation in KCl group were less compared to NS group [(3.75 ± 2.86) J vs.(8.33 ± 2.88) J,(t =2.78,P =0.019)].The ROSC rate in the KCl group was higher than that in NS group (P =0.011).The 72 h survival rate in KCl group was higher than that in NS group (P =0.001).Conclusions Increasing plasma potassium level before CPR could increase the ROSC rate and survival rate in rats with VF.

The Lazarus Syndrome / 中华急诊医学杂志

The Lazarus phenomenon is defined as delayed ROSC,or ROSC after failure of CPR and cessation of all the emergency medical care,including the cessation of chest compression,mechanical ventilation,and venous fluid resuscitation.It was first reported in 1982 and 53 cases of Lazarus phenomenon have been reported in the medical literature so far.Even though Lazarus phenomenon is rare and the pathophysiological mechanisms are poorly understood,several possible mechanisms are still proposed,which could be rational to explain this phenomenon,such as auto-PEEP,hyperkalemia,alkalosis,delayed action of drugs,etc.In most cases,it was reported that ROSC occurred within 10 minutes after cessation of medical effort.Therefore,before the announcement of death of patient,it is mandatory to monitor those patients for at least 10 minutes after the cessation of CPR.However,more explicit studies seem to be necessary to gain a better understanding of this phenomenon.

Outcome of Early Cardiopulmonary Resuscitation in Out-of-Hospital Cardiac Arrest Managed in Universiti Kebangsaan Malaysia Medical Centre

Out-of-hospital cardiac arrest (OHCA) patients require immediate cardiopulmonary resuscitation (CPR). Early initiation of CPR and defibrillation before arrival at Emergency Department (ED) increases the chance of survival from sudden cardiac arrest. The main objective of this study was to identify the factors that influenced the outcome of early cardiopulmonary resuscitation (CPR) in out-of-hospital cardiac arrest (OHCA) patients managed at the ED of Universiti Kebangsaan Malaysia Medical Centre (UKMMC). The second objective was to determine the incidence of CPR initiated by the public prior to ambulance arrival. The present study was a one-year cross-sectional study. The OHCA patients were identified from the ED resuscitation logbook. Patients’ medical records were used to obtain details of the resuscitation. Factors recorded included: aetiology of arrest, initiation of on-scene CPR, use of automated external defibrillators (AEDs), mode of transportation and the incidence of return of spontaneous circulation (ROSC) in the ED. Categorical data was analysed using chi-square and Fisher exact tests. Nine patients out of 98 had early CPR. Three patients achieved ROSC. Gender was significantly associated with ROSC (p-value=0.015). More patients who received early CPR achieved ROSC compared to those who received late CPR. The provision of early CPR and usage of AEDs by the public is still low. Female gender had a positive influence on ROSC. Efforts are required to increase the awareness and involvement of the public in initiating early CPR prior to the arrival of ambulance service.

In vitro antioxidant potential of the essential oil and leaf extracts of Curcuma zedoaria Rosc.

In this study, we examined the chemical composition of the essential oil and tested the antioxidant potential of the oil and leaf extracts of Curcuma zedoaria Rosc. The chemical compositions of the oil were analysed by GCMS. Twenty-four compounds representing 92.4% of the total oil was identified. The antioxidative potential was evaluated using two separate methods, inhibition of free radical 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide radicals scavenging activities assay. In the first case, the IC50 value of the oil was 14.8 ± 2.2. Among the extracts, the strongest activity was exhibited by the ethyl acetate extract (IC50 = 17.56 ± 1.6 μg/ml). In the superoxide radicals scavenging activities assay, ethyl acetate extract was superior to all other extracts (IC50 = 23.47 ± 1.2 μg/ml). Furthermore, the amount of total phenolic compounds was also determined as gallic acid equivalent. Thus, the natural products produced from C. zedoaria may be used in food and pharmaceutical industries.

Comparison of cardiac arrest induced by ventricular fibrillation or induced by asphyxia in rats / 中华急诊医学杂志

Objective To compare the changes of physiological parameters after cardiac arrest caused by asphyxia with that of cardiac arrest induced by ventricular fibrillation in rats and assess the values of the parameters on predicting ROSC and 24 h survival rate. Method Two groups of Sprague-Dwaley rats, which randomly (ramdom number) included 30 animals in each group, were investigated. Cardiac arrest were induced by asphyxia (AS group) or ventricular fibrillation(VF group). PETCO2, aortic pressure, left ventricular pressure and ECG of limb lead Ⅱ were recorded continuously, dP/dt4o was calculated with the windaq software. The parameters were compared between the two groups at baseline, precordial compression(PC) 10 s, PC 1 min, PC 3 min, ROSC 1 h and ROSC 2 h. The relations were explored between the parameters and ROSC/24 h survival rate. Results PETCO2,aortic pressure, left ventricular pressure and ECG have distinctive changes in the two groups. In group VF, PETCO2 of ROSC rats at BL, PC 1 min and PC 3 min were higher than those of Non-ROSC rats (P ＜ 0.05); PETCO2of 24 h survival rats at ROSC 1 h and ROSC 2 h were higher than those of 24 h death rats (P ＜ 0.05), which were not observed in the group AS. dP/dt40 and - dP/dt40 at ROSC 1 h and ROSC 2 h in group VF were higher than those in group AS (P ＜ 0.05). Conclusions Physiological parameters after cardiac arrest caused by asphyxia or that of cardiac arrest induced by ventricular fibrillation in rats have unique features respectively. PETCO2 in cardiac arrest caused by ventricular fibrillation may predict ROSC and 24 h survival rate. Researchers have to select the appropriate cardiac arrest model according their research purposes and clinical requirments.

Efecto in vitro de una solución de Zingiber officinale Rosc. (jengibre) sobre la respuesta de linfocitos humanos de donantes sanos y enfermos con inmunodeficiencia celular / In vitro effect of a solution of Zingiber officinale Rosc. (Ginger) on the response of human lymphocytes from healthy donors and patients with cellular immunodeficiency

El Zingiber officinale Rosc. (jengibre) es una especie que se ha utilizado por el hombre con diversos fines. Se estudió el efecto in vitro de una solución acuosa del rizoma de esta planta sobre los linfocitos de 30 donantes voluntarios de sangre y de 30 enfermos con diagnóstico de inmunodeficiencia celular, mediante la prueba de transformación linfoblástica, con el empleo de timidina tritiada, la técnica de formación de roseta activa y el ultramicrométodo inmunocitoquímico (UMICIQ). No se hallaron diferencias estadísticamente significativas entre las condiciones experimentales sin jengibre y con jengibre, con diluciones de este desde 1:2 hasta 1:2048 en la prueba de transformación linfoblástica. En la roseta activa y en los marcadores de activación HLA-DR y CD25 no se observaron diferencias estadísticamente significativas entre los linfocitos sin jengibre y los cultivados con la dilución 1:128, tanto en los donantes sanos como los enfermos

The Zingiber officinale Rosc (ginger) is a species used by man to different purposes. The in vitro effect of a aqueous solution from the rhizome of this plant on the lymphocytes of 30 volunteer blood donors and of 30 patients diagnosed with cellular immunodeficiency was studied by the lymphoblastic transformation test using tritiated thymidine, the technique of the rosette active formation and the immunocytochemical ultramicromethod (UMICIQ). There were not statistically significant differences among the experimental conditions with and without ginger with dilutions from 1:2 to 1:128 in the lymphoblastic transformation test. In the active rosette and in markers of the HLA-DR and CD25 activation there weren't statistically significant differences among lymphocytes without ginger and those cultured with a dilution 1:128 for healthy donors and for the patients

Oral hygiene practices and habits among dental professionals in Chennai.

Aims and objectives : The present study was carried out to assess the oral hygiene practices and habits among practicing general dentists. Materials and Methods : The study was carried out in four dental schools with the help of a self administered questionnaire. The questionnaire covered dentists' oral self care, smoking habits, professional reading and oral health concepts. A total of 700 dentists responded, of which 457 were males. Recommended oral self care (ROSC) included tooth brushing one per day, eating sugary snacks daily or rarely and regularly using fluoride tooth paste. Results : The data obtained was then subjected to statistical analyses and evaluated using chi-square tests and logistic regressions.It was found that 55.9% of all respondents brushed twice a day, 59.4% consumed sugar containing snacks less than once daily and 55.1% of them used fluoride containing paste regularly while brushing. 81.1% of the 700 dentists never used tobacco products. In all, 19.6% 0f the practicing general dentists followed recommended oral self care. Conclusion : From the present study, it can be concluded that only 19.6% of south Indian dentists follow recommended oral self care and hence awareness programs and continuous dental education programs among dentists is essential to improve the present scenario and to increase the number of dental professionals following ROSC.

Influence of ulinastattn on changes of serum concentration and the expressions of SlOOβ protein in the CA1 region of hippocampus of rats after CPR / 中华急诊医学杂志

Objective To investigate the serum concentration and expressions of S100β protein in hippocampus CA1 region and the changes of water content in rats with asphyxia following ulinastatin injection after cardiopul-monary resuscitation (CPR). Method One hundred twenty male adult SD rots were randomly divided into 3 groups:sham-operation group, CPR group and ulinastafin group. And each group was further divided into 5 sub-groups (n=8) based on various intervals, 0.5 h,3 h,6 h,12 h and 24 h after tracheotomy in sham-operation group or after ROSC in CPR group and ulinastatin group. Asphyxial cardiac arrest and CPR model of rat was used in CPR group and ulinastatin group in which bolus dose of 100 000 U/kg ulinastatin was injection into arteria carotis. Anaesthesia, tracheotomy and vascular canratlafion without asphyxia and CPR in sham-operation group. Samples from subgroups were taken at different intervals. Brain water content was measured by using wet-dry weight method. Serum S100β protein was measured with enzyme-linked immunosorbent assay ( ELISA). The expres-sion of S100β protein in hippocampus CA1 region was measured by using immunohistochemistry. Data were ana-lyzed by SPSS version 10.0 software. Results Compared with sham-operation group, the brain water content of rats elevated significantly in all CPR subgroups after ROSC (P<0.05 or P<0.01). The brain water content of rats decreased significantly 12 h and 24 h after ROSC in ulinastatin group in comparison with CPR group (P<0.05). The serum S100β protein started to elevated significantly 0.5 h after ROSC in CPR group, and reached the peak 12 h after ROSC (P<0.01).serum S100β decreased 6 h,12 h and 24 h after ROSC in ulinastatin group compared with CPR group (P<0.01).The expression of S100β protein in hippocampus CA1 region remained at a low level in sham-operation group. The expression of S100β protein elevated significantly in all CPR subgroups after ROSC compared with sham-operation group (P<0.05 or P<0.01). Compared with CPR group, the ex-pression of S100β protein decreased after ROSC in ulinastatin group(P<0.05) .However,the expression of S100β protein in hippocampus CA1 region was significantly correlative with brain edema in all subgroups of CPR (r=0.862, P<0.05). Conclusions Ulinastatin can decrease serum S100β protein and the expression of S100β pro-tein in hippocampus CA1 region and lessen the severity of cerebral edema, alleviate the brain isehemic injury in rats after cardiopulmonary resuscitation.

Factors of Cardiopulmonary Resuscitation Outcome for In-hospital Adult Patients / 대한구급학회지

BACKGROUND: The purpose of this study was to evaluate the factors of cardiopulmonary resuscitation (CPR) outcome for in-hospital adult patients, acquiring data with standardized reporting guideline of in-hospital cardiopulmonary resuscitation in Korea. METHODS: All adult cardiac arrest patients from July 2004 to December 2006 in this general hospital were included. Their clinical spectrums were reviewed retrospectively using Utstein-style based template. RESULTS: For the study time period, one hundred and forty-two patients underwent cardiac arrest in this hospital. 136 patients were performed CPR. Return of spontaneous circulation (ROSC) occurred in 42 cases, and 15 patients were survived to hospital discharge. A shorter CPR time and a lower Simplified Acute Physiology Score II (SAPS II) were significant for survivor to hospital discharge (p<0.01). Sex, age, and location in cardiac arrest were not attributed to survival to hospital discharge. CONCLUSIONS: In-hospital CPR patients, the high rate of ROSC and survival to hospital discharge were associated to the cause of arrest, shorter time of CPR, and lesser severity of disease (SAPS II). This result can be a great implication of survivor from CPR in-hospital adult patients in Korea. Further evaluation with consistent data acquisition of CPR using Utstein-style would contribute to improve CPR practice and outcome.

The easily volatile components from zhizome of Curcuma zedoria Rosc. cultivated in Nghe An and Ha Tinh provinces

The study on chemical components of volatile oil of Nga Truat root collected in Nghe An and Ha Tinh provinces found that in the mobile fluid of yellowish volatile oil of Nga Truat with special are matic of curcuma an essential productivity of 0,22% of fresh root was identified. In volatile oil samples, rich content of epicurzerenon, germacrone was determined. The other components of lower contents are betapinen 1,8- cineole, caphor, isoborneol, beta- elemene, zingiberen, benzofuran -6- ethyxyl 4,5,6,7- tetrahydro-3,6- dimethyl -5-isopropyl, T- muurolol. Monoterpen content in volatile oils is lower considerably than the content of sesquiterpen and oxygene containing conrespondents substances. There compounds give special aromatic smell of the oils

FRACTIONATION OF POLYSACCHARIDBS FROM CURCUMA ZEDOARIA ROSC AND ITS BIOACTIVITIES / 营养学报

Objective: To extract the polysaccharides of Curcuma zedoaria Rosc (PCZ) and study its bioactivities. Methods: The crude polysaccharides were extracted from herbal slice of Curcuma zedoaria Rosc with hot water ,and precipitated by ethanol and savage deproteinization and depigmentation with activated charcoal. The constituents were isolated by column chromatography and the total polysaccharides content was determined. Experiments of immune function,anti-oxidation and anti-tumor activity of KM mice and in viro were studied. Results: The content of total polysaccharides of Curcuma zedoaria Rosc was 33.12%. and the extraction rate was 1.938% . It could raise spleen cell proliferation and transformation rate of lymphocyte and SOD activity in blood of mice. A higher antitumor effect of the polysaccharides by injection was observed dose-dependently. Conclusion: PCZ could raise the immune and anti-oxidative activities and then had a higher antitumor effect.

Significance of End-Tidal Carbon-Dioxide Monitoring as a Prognostic Indicator of Successful Resuscitation During Cardiopulmonary Resuscitation: Analysis According to Cause of Arrest

BACKGROUND: In recent years, there has been increasing interest in the use of capnometry, the noninvasive, continuous measurement of end-tidal carbon dioxide(ETCO2) in expired air during CPR. The purpose of this study is to determine the significance of ETCO2 monitoring according to immediate cause of arrest during CPR as a prognostic indicator of successful resuscitation and survival. METHODS: A prospective, clinical study was performed from May 1997 to December 2000 at the Department of Emergency Medicine, Ewha Womans University Mokdong Hospital. The study included 220 patients(231cases). All patients were immediately connected to a mainstream capnometer sensor between the tube and the bag after endotracheal intubation using an infrared capnometer. RESULTS: The 107 patients(46.3%) with return of spontaneous circulation(ROSC) had higher maximal ETCO2 during CPR than the 113 patients without ROSC(31.0+/-19.4 vs 11.7+/-9.4 mmHg, P=0.000). The ETCO2 was not significantly different in relation to age, initial rhythm, and survival time after ROSC, but there was a significant difference in the immediate cause of arrest in the ROSC group(respiratory arrest: 4 0 . 2+/-23.5 mmHg, P=0.000). In case of cardiac arrest due to trauma, maximal ETCO2 was not significant in the ROSC group compared with the non-ROSC group(18.2+/-16.6 vs 10.8+/-7.5 mmHg, P=0.208). When maximal ETCO2 was less than 10 mmHg, we observed a sensitivity of 94.4% and a specificity of 39.5% in predicting ROSC. There were 6 patients with ROSC even though the maximal ETCO2 was less than 10 mmHg. CONCLUSION: Continuous ETCO2 monitoring during CPR may be noninvasive and valuable predictor of successful resuscitation and survival from cardiac arrest. However, ETCO2 should not be used as a single indicator for either cardiac arrest due to trauma or withdrawal of CPR.