2.Statistical screening of the B-cell epitopes for the nucleoprotein of human H5N1 virus predicted by computerization
Ping HUANG ; Shouyi YU ; Changwen KE
Chinese Journal of Microbiology and Immunology 2008;28(4):363-367
Objective To predict and screen the B-cell epitopes on nucleoprotein(NP)of human avian H5N1 virus strain.Methods As NP nucleotide sequences of strain A/GD/01/06(H5N1)were sequenced,B-cell epitopes were predicted by the analysis of the flexible regions of secondary structure for NPprotein and by screening on B-cell epitopes for NP protein with methods of Hydrophilicity Plot by KyteDoolittle,Surface Probability Plot by Emini,and Antigenic Index by Jameson-Wolf.Then a screening method was established by Hierarchical cluster,Bivariate correlate and Quartiles in SPSS13.0.and the variation of amino acids in NP protein was appraised in epitope prediction.Resuits The computer-predicted most possible epitopes for NP protein were located within or nearby its N-terminal 317-326,452-457,467-473,367-370,491-498,375-378,171-177,48-53,245-250.76-104 and so on.NP protein in A/GD/01/06(H5N1)increased a glycoprotein domain(NES368-370)by the substitution of N370S and changed the bio-features.Conclusion Stepwise prediction of the B-cell epitopes for the NP protein based on multiple parameters is helpful for the molecular-immunology and drug-screening,and the substitution of N370 S in NP of A/GD/01/06(H5N1)varied its antigenicity but didn't change the epitope size(SNEN367-370).
3.Analysis of injection Itraconazole in treatment of invasive pulmonary fungal infections(IPFI).
Ping GAO ; Zhengxian ZHEN ; Yu HUANG
Chinese Journal of Practical Internal Medicine 2001;0(03):-
Objective To evaluate the efficacy of injection itraconazole in treatment of 17 patients suffering invasive pulmonary fungal infections(IPFI).Methods Seventeen patients suffering IPFI were treated with 200 mg injection itraconazole,twice a day on the first two days,then once a day.During the treatment,the symptoms and signs were recorded.Results The effective rate and mortality in this trial with injection itraconazole were 64.7%(11/17)and 17.6%(3/17)respectively.The severe side effect was not found.Conclusion injection itraconazole is an effective therapy for IPFI.
4.Design and Implement of Data Collection and Management System for Water Meters, Electric Meters and Oxygen Gauges in Hospital
Ping HUANG ; Jinxiong CHEN ; Haizhu YU
Chinese Medical Equipment Journal 2003;0(11):-
Objective To research and develop a data collection and management system for water meters, electric meters and oxygen gauges within the hospital intranet and perform an interface to the reckon of No.1 Military Project to make sure the accruracy of reckon entry. Methods Terminal equipment is water meters, electric meters and oxygen gauges with RS485 long-distance transmission interface. All the long-distance transmission meters for each independent reckon unit are connected to a single or a group of Comport-Network transformers. The data collected by data collection software will then periodically transmit and save the equipment data in a single or multiple special datatables built on No.1 Military database platform. Results This technology has been applied to the newly built in -patient building. Conclusion The interface designed to integrate decentralized equipment and data into the hospital's local area network using Comport- Network will have extensive application and promising marketing prospect.
5.Etiology Study of Hand-foot-mouth Disease in Liuzhou city from 2013 to 2016
Junchi YU ; Ping HUANG ; Liujun CHEN
International Journal of Laboratory Medicine 2017;38(17):2377-2379
Objective To analyze the etiological and epidemiological characteristics of hand-foot-mouth disease(HFMD) in Liuzhou city from 2013 to 2016,and to provide scientific evidence for preventive policy making.Methods Specimens of HFMD cases were collected from the hospitals and county CDC from 2013 to 2016.The nucleic acids which are enterovirus viruses71(EV71),coxasckie virus A16(CoxA16) and other enterovirus(EV) was detected by Real time PCR technique.Results A total of 3 503 suspected HFMD cases were found,and 2 720 cases were identified.The main pathogen of HFMD in Liuzhou city was change every year from 2013 to 2016,in addition to EV71 and CoxA16,there was a higher proportion of EV.HFMD was a seasonal disease,most cases occurred from March to September.The children under 5 years old,especially 1-3 years old were the main patients,and male patients was higher than female.Severe and death HFMD was EV71,but death HFMD had no CoxA16.Conclusion EV was the main pathogen of mild HFMD in Liuzhou city from 2013 to 2016,but the pathogenic spectrum was changing every yeas.EV71 was the main pathogen of severe and death HFMD.
6.DELETION ANALYSIS OF DNA FRAGMENT RM07 FROM HALOBACTERIUM HALOBIUM
Yin WANG ; Yu-Ping HUANG ; Zhen-Hong DUAN ; Ping SHEN ;
Microbiology 1992;0(01):-
The DNA fragment RM07 was isolated from halophilic archaea Halobacterium halobium, which can function as promoter not only in halophilic archaea, but also in Escherichia coli as eubacterial promoter. Sequencing analysis indicated that it possessed the typical consensus sequences (-35 and -10) of bacterial gene promoter, which was confirmed by further deletion analysis: With its -35 sequence deleted and -10 sequence left,DNA fragment RM07a nearly cannot initiate transcription;With its both -35 and -10 sequences,RM07b DNA fragment could be active as promoter at a level even higher than RM07. Our research also showed that the promoter function of RM07 fragment in Escherichia coli was under the control of environmental factors,especially its positive correlation with the increasing concentration of sodium chloride. Therefore, RM07 DNA fragment may be potential1 novel promoter source for constructing double-function vectors. It also has special significance in elucidating the issues of the fusing characteristics of archaea and lateral gene transfer between archaea and bacteria.
8.Effect of Dipyridamole Therapy on Kawasaki Disease with Glucose-6-Phosphate Dehydrogenase Deficiency in Children
shu-hua, LI ; ping, HUANG ; ming-hua, YU
Journal of Applied Clinical Pediatrics 1986;0(01):-
Objective To evaluate the therapy and turnover of Kawasaki disease(KD)with glucose-6-phosphate dehydrogenase(G-6-PD)deficiency.Methods Six hundred and twenty-four patients with KD were selected including 32 patients who had G-6-PD defected.The same dose intravenous immunoglobulin(IVIG)was used in all 624 patients(2 g/kg),but used Dipyridamole in 32 patients had G-6-PD deficiency which replaced the role of acetylsalicylic acid(ASA)after acute period.The coronary artery of these patients were checked and followed-up through echocardiograph.The turnover of 32 patients with G-6-PD deficiency and 356 case selected randomly from all the KD patients were compared.SPSS 10.0 software was used to analyze the data.Results In 32 cases of KD with G-6-PD deficiency,4 children had coronary aneurysm(12.5%).After 6-12 months follow-up,the coronary lesions were recovered in 62.5% children,improved in 21.9% children and not improved in 15.6% childern,which were not significantly different from all the KD patients(Z=-1.604 P=1.09).Conclusions IVIG and Dipyridamole are feasible in treating KD with G-6-PD deficiency.J Appl Clin Pediatr,2009,24(1):26-27
9.Effects of Coincident Infection on Treatment Response and Coronary Artery Lesion Outcome in Children with Kawasaki Disease
yan-qin, CUI ; ming-hua, YU ; ping, HUANG ; li, ZHANG
Journal of Applied Clinical Pediatrics 2006;0(15):-
Objective To explore the effects of coincident infection on treatment response and coronary artery lesion (CAL) outcome in children with Kawasaki disease(KD).Methods A retrospective study of 141 children diagnosed on KD between Jul.2005 and Dec.2006 were performed.Standardized clinical assessments,laboratory examinations microbiology test results plus treatment regimens were reviewed.CAL were visualized by using echocardiography.Infectious agents positive (INF+) and negative (INF-) groups were identified,and clinical assessments,laboratory and treatment data were analyzed.Results 1.Concurrent infections:41%(58/141) of children had one of above confirmed infection at KD diagnosis.2.Treatment response:the presence of infection did not alter the response to treatment with intravenous immunoglobulin (IVIG),with resolution of fever within 72 h in 85% (120/141) children after 1 dose of IVIG (2 g/kg) together with aspirin administration regardless of present or absent infection.3.CAL outcome:in total,56.0% (79/141) of children developed CAL at the time of diagnosis,involving dilatation (91.1%,72/79 cases) and aneurysm (8.9%,7/79 cases),and no giant aneurysm was found.Most CAL were recovered within 1 year after treatment.Incidence of aneurysm in INF+ group was significantly higher than that in INF-group (P=0.019).Conclusions Coincident infection would not affect on the clinical assessment,laboratory test results and treatment response to IVIG in children with KD,but would result in higher risk of serious CAL.Therefore,children with infection at diagnosis on KD will not only accept active treatment in acute phase,but also insist on convalescent care and follow-up visit.
10.Percutaneous transhepatic biliary interventional procedures for treatment of biliary stricture following orthotopic liver transplantation
Qiang HUANG ; Dingke DAI ; Ping YU ; Xiaojun QIAN ; Renyou ZHAI
Chinese Journal of Tissue Engineering Research 2008;12(40):7992-7994
BACKGROUND: Biliary tract complications are one of the most common postoperative problems after liver transplantation.Balloon dilation and percutaneous transhepatic biliary drainage (PTBD) has become an effective method to improve biliary complication after orthotopic liver transplantation (OLT).OBJECTIVE: To evaluate the balloon dilation and PTBD in the treatment of biliary stricture after OLT through case follow up.DESIGN, TIME AND SETTING: A total of 53 consecutive patients underwent interventional procedures to treat biliary stricture after OLT in the Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University from July 1999 to March 2007 and were recruited for this study. The series included 46 men and 7 women, with 17-64 years of age. After OLT transplantation, all patients had abnormally elevated serum bilirubin level, and confirmed to suffer from obstruction of biliary tract by CT or MRI examinations.METHODS: Of 50 patients who received PTBD treatment, 36 underwent PTBD through right bile duct, 14 underwent bilateral (right bile duct and left bile duct) PTBD with 6 patients through left bile duct in the second treatment. A total of 13 underwent balloon dilation, and 3 were subjected to balloon dilation alone.MAIN OUTCOME MEASURES: An averaged 9.6 months of follow up was performed in 53 patients to observe obstructive jaundice recurrence induced by abnormally elevated serum bilirubin level after percutaneous transhepatic biliary interventional procedures.RESULTS: Follow up results showed satisfactory clinical outcome with obstructive jaundice resolved in all patients, except one patient, who received treatment with T tube, died of acute rejection at month 1 during the follow up, and one patient with liver failure had extremely poor prognosis after discharge at month 1 during the follow up. Obstructive jaundice was recovered even healed and serum bilirubin level was decreased to normal level in 51 patients at the end of follow-up. Primary success rate was 79% (42 in 53 cases), and assisted success rate was 21%. The first interventional procedure failed to treat obstructive jaundice in 5 patients. Obstructive jaundice recurred after primary percutaneous procedure in other 6 cases. No procedure related severe complications happened.CONCLUSION: Balloon dilation and PTBD are safe to treat biliary tract complication after OLT, without complication.