1.Therapeutic effects of multi-dose activated charcoal on the acute dichlorvos poisoning in rats
Li YUAN ; Nana WANG ; Heng DAI ; Zhenkun HAN ; Min ZHAO
Chinese Journal of Emergency Medicine 2010;19(6):606-609
Objective To assess the therapeutic effects of activated charcoal on the acute dichlorvos poisoning in rats. Method Thirty male clean grade Wistar rats were randomly (random number) divided into three groups: control group (group A, n = 10), single dose activated charcoal group (group B, n = 10) and multi-dose activated charcoal (group C, n=10). The rats of group A were suffered from 35 mg/kg dichlorvos exposure by oral without activated charcoal and senna. The rats of group B received 35 mg/kg dichlorvos exposure by oral with 175 mg/kg activated charcoal given immediately after dichlorvos exposure and 35 mg/kg senna given half an hour later. In the group C, 35 mg/kg dichlorvos was given to rats by oral with 175 mg/kg activated charcoal given immediately after dichlorvos exposure and 35 mg/kg senna given half an hour later and then every four hours. Blood samples were collected from the carotid artery at different intervals after exposure. DDVP concentration and total blood acetyl-cholinesterase activity were detected. Differences in serum DDVP concentration, Cmax, AUC (0→∞ ), MRT and acetylcholinesterase among three groups were calculated by using ANOVA. Results Serum DDVP levels in single dose group and in multi-dose group were significantly different from those in control group (P < 0.05). The DDVP levels in multi-dose group were significantly different from those in single dose group 4 hours after exposure (P < 0.05). The AUC and Cmax in activated charcoal treatment groups were significantly different from those in control group (P < 0.05). There were no significant differences in MRT among three groups. Fours hours after exposure to dichlorvos,the levels of serum acetylcholinesterase in rats of group B and group C were significantly different from that in rats of group A (P < 0.05), and there was no significant difference in acetylcholinesteras between group B and group C (P > 0.05). Another four hours later, no differences in acetylcholinesterase were found a-mong three groups (P > 0.05). Conclusions The peak concentrations of dichlorvos in blood are lower in group B and group C, and the blood acetylcholinesterase inhibition is quelled by activated charcoal. Therefore, the effects of multi - dose of activated charcoal is better than that of single dose of activated charcoal.
2.Delicacy management practice of NSFC application process in an affiliated hospital of a medical university
Niannian LI ; Heng WANG ; Jiayun ZHAO ; Ren YE ; Mengming CHENG
Chinese Journal of Medical Science Research Management 2017;30(4):278-281
Objective summarize the delicacy management practices through the NSFC application procedures in a university affiliated hospital,to provide further reference for improvement of the NSFC project approvai ratio.Methods To summarize the management experiences by analyzing the approval number,project category and funds of NCFS from 2006 to 2015.Results The delicacy man agement practices include cultivate scientific research atmosphere by strengthen motivation,initiate application as early as possible,enlarging application number by extensive mobilization,improve applica tion quality by massive training,multi-round updates,tutorial,prevent avoidable errors by cross-over review.Conclusions Delicacy management by scientific research management department during the application process is critical to improve the project approval ratio of NCFS in a hospital.
3.Protective effect of caffeine citrate on neonatal rat brain white matter damage induced by infection
Falin XU ; Heng LI ; Huiqing CHENG ; Xiaojun ZHAO ; Shushuo YANG
Chinese Journal of Applied Clinical Pediatrics 2017;32(14):1085-1088
Objective To investigate the protective effect of caffeine citrate on white matter damage in 2-day-old neonatal rats induced by postnatal infection.Methods Forty-eight 2-day-old SD rats were randomly divided into the control group (group A,n =16),lipopolysaccharide(LPS) infection group (group B,n =16),and caffeine citrate intervention group (group C,n =16) according to the random table method.The newborn rats of group B and C were continuously injected LPS 0.6 mg/kg intraperitoneally for 5 days from 2 days old,and the newborn rats of group A were continuously injected by an equal volume of 9 g/L saline intraperitoneally.Group C was continuously injected by caffeine citrate 10 mg/kg intraperitoneally for 7 days from 4 days old;equal volume of 9 g/L saline was injected into group A and B for 7 days continuously.At 12 days old,8 rats of each group were sacrificed randomly to evaluate the expression of myelin basic protein(MBP) subcortical white matter by immunohistochemical method.Both sides of hippocampus of the rest 8 rats of each group were taken out in ice surface rapidly.The left hippocampus was used to detect the expression of MBP and Caspase-3 by Western blot method,and the right hippocampus was used to evaluate the MBP and Caspase-3 protein level by quantitative real-time PCR(qPCR) method.Results The mean integral optical density (IOD) of subcortical MBP positive expression in group A,group B and group C were 132.64 ± 1.94,102.43 ± 2.12,114.25 ± 2.04,and the difference was statistically significant among 3 groups (F =22.912,P < 0.05).The relative expression levels of MBP mRNA of 3 groups in hippocampus were 0.79 ± 0.01,0.39 ± 0.03,0.55 ± 0.02,and the difference was statistically significant among 3 groups (F =18.584,P < 0.05).The relative expression levels of MBP protein of 3 groups in hippocampus were 0.64 ± 0.03,0.31 ± 0.03,0.51 ± 0.05,and the difference was statistically significant among 3 groups (F =25.780,P < 0.05).The relative expression levels of Caspase-3 mRNA of 3 groups in hippocampus were 0.34 ± 0.02,0.74 ± 0.03,0.57 ± 0.04,and the difference was statistically significant among 3 groups (F =6.105,P < 0.05).The relative expression of Caspase-3 protein of 3 groups in hippocampus were 0.11 ± 0.03,0.36 ± 0.02,0.23 ± 0.03,and the difference was statistically significant among 3 groups (F =40.541,P < 0.05).Conclusions Caffeine citrate has showed protective effect on white matter damage in neonatal rats of 2 days old induced by postnatal infection.The mechanism may be related to inhibition of inflammatory response and reducing apoptosis.
4.Considerations on the 5-in-1 social co-governance for drug safety
Yunwu ZHAO ; Heng WANG ; Jingya WU ; Cheng BIAN ; Niannian LI
Chinese Journal of Hospital Administration 2015;31(1):39-41
In this consideration,the paper described the imperatives of drug safety,constraints of governance by the government,and advantages of social co-governance,proposing the necessity to establish aFive-in-One (referring to the involvement of the government,enterprises,industry associations,media and the public) drug safety social co-governance.In its analysis of the present dilemma o[drug safety governance,the authors proposed such measures as perfecting legal and institutional system,reforming governmental power allocation mechanism,improving the incentive mechanism,innovating governance means and improving social governance ability,for the purpose of enhancing such a co-governance pattern.
5.Clinicopathologic study based on 2 056 cases of pulmonary resection of lung adenocarcinoma
Na LI ; Heng ZHAO ; Jie ZHANG ; Lei ZHU ; Jinchen SHAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2014;30(12):715-718
Objective The international multidisciplinary lung adenocarcinoma classification was published by IASLC/ ATS/ERS in 2011.This study aimed to explore the clinicopathologic characteristics of lung adenocarcinoma based on IASLC/ATS/ERS classification and validate its clinical diagnostic and therapeutic value.Methods 2 056 cases of surgical resection from Shanghai Chest Hospital were classified according to the new classification and clinical information were retrospectively reviewed.The clinicopathologic characteristics based on new classification were analyzed statistically.Results Our data indicated that women were in high risk of lung adenocarcinoma; The average age of onset was 59-year-old; the female patients were younger than the male patients (58.7 years vs 60.2 years,P < 0.01) ; Average tumor diameter was 2.6 centimeter; right lung was more popular than left and superior lobe than the inferior one.Acinar predominant subtype and papillary predominant subtype were frequently observed.Micropapillary predominant subtype and solid predominant subtype were identified to be more aggressive than other histopathologic subtypes.Most patients were classified as stage Ⅰ(71.7%),which were predominantly stage Ⅰa (53.1%).Conclusion The new classification is superior to reflect the clinicopathologic characteristics of lung adenocarcinoma and satisfy clinical needs,especially contributing to change and update the surgical strategy of early stage lung adenocarcinoma.
7.Classification tree analysis in serous ovarian adenocarcinoma patients for prognostic factors associated with three-year survival probability
Honglan ZHU ; Yi LI ; Yiming ZHAO ; Heng CUI ; Yan ZHAO ; Xiaohong CHANG ; Jie FENG ; Lihui WEI
Chinese Journal of Obstetrics and Gynecology 2008;43(3):201-204
Objective To analyze the prognostic factors associated with three-year survival outcome in patients with serous ovarian adenocarcinoma by classification tree.Methods Retrospectively we analyzed 81 cases with serous ovarian adenocarcinoma who had 3-year clinical outcomes and were hospitalized in People's Hospital from Jan 1991 to Dec 2003 by classification and regression trees(CART)software.Establish the classification tree.Results Among the factors that were associated with the 3-year survival rate,age was the most important factor,other factors in turn were International Federation of Gynecology and Obstetrics(FIGO)stage,lymphoid metastasis,residual size after operation,chemotherapy and pathologic grade.By substitution variable analysis,it was demonstrated that there was cross interaction between age and residual size as well as age and chemotherapy.Conclusion Age,FIGO stage,lymphoid metastasis,residual size after operation,chemotherapy and pathologic grade are important prognostic factors related with three-year survival probability of serous ovarian adenocarcinoma patients.
8.Survey of Status and Demand of Rehabilitation Medical Professionals in Tianjin
Guoxin FU ; Liping ZHAO ; Heng XIANG ; Xin LI ; Weijia HOU ; Li FU ; Shaoguang LI ; Xiaolong YANG
Chinese Journal of Rehabilitation Theory and Practice 2012;18(4):392-394
Objective To investigate the status of the rehabilitation service and rehabilitation medical professionals in Tianjin. Methods130 hospitals and Disabled Persons' Federations in Tianjin selected by stratified random cluster sampling were surveyed by questionnaires.Results About 49.2% institutions had carried out the rehabilitation services; there were 842 rehabilitation medical professionals in total, including237 rehabilitation physicians and 3 prosthetic orthopaedic technicians, with a gap of nearly 3000 people; most of them were in loweducation. Conclusion The rehabilitation service should be developed; the quantities and quality of the rehabilitation medical professionalsshould be improved, the classified structure and the service objects are unbalanced.
10.A Study of Strephenopodia and Strephexopodia of Children with Spastic Cerebral Palsy Based on Gait Analysis
Heng LI ; Feng LI ; Yan-zhao SHI ; Zhengjun LIU ; Jingwen LAN ; Ruofei MA
Chinese Journal of Rehabilitation Theory and Practice 2008;14(12):1177-1179
Objective To find out the mechanism of strephenopodia and strephexopodia of children with spastic cerebral palsy by analyzing their gait character.MethodsForty children with spastic cerebral palsy and forty healthy children with normal walking ability were involved in this research.Footscan 7 gait analysis system was used to measure foot initial touchdown part,the ratio of different part touchdown phase to single supporting phase,the degree of strephenopodia and strephexopodia in different part.Two groups' characteristic parameters were analyzed by statistics method.ResultsSignificant differences were found in foot first touchdown part between two groups(P<0.05).The phenomenon that toes or metatarsus or whole foot first touch the earth was found in children with spastic cerebral palsy.The ratio of anterior foot and middle foot touchdown phase to single supporting phase were higher than normal children(P<0.05).In spastic cerebral palsy group the phenomenon of strephexopodia was more serious than strephenopodia during anterior foot touchdown phase.ConclusionLots of children with spastic cerebral palsy are suffering long-time compression pain and strephexopodia with anterior foot,active rectification must be performed during rehabilitation care.