1.Blind intubation via Cookgas intubating laryngeal airway in patients under general anesthesia
Xiaoming DENG ; Dong YANG ; Lingxin WEI
Chinese Journal of Anesthesiology 1994;0(03):-
Objective To evaluate the feasibility of blind intubation via Cookgas intubating laryngeal airway (CILA) in patients under general anesthesia. Methods Sixty ASA Ⅰ or Ⅱ patients aged 11-65 yrs scheduled for elective plastic surgery under general anesthesia were randomly allocated into 2 groups ( n = 30 each): blind intubation group (B) and fiberoptic bronchoscope group (FOB) . All patients were evaluated before operation to identify patients with difficult airway. Anesthesia was induced with midazolam 0.05 mg?kg-1 , fentanyl 2 ?g?kg-1 , propofol 2 mg?kg-1 and vecuronium 0.1 mg?kg-1 . CILA was inserted in all patients. The patients in group B were blindly intubated via CILA, while in group FOB tracheal intubation was guided with fiberoptic bronchoscope via CILA. The time spent in intubation and the success rate of tracheal intubation were recorded. SBP, DBP, HR and SpO2 were recorded immediately before and after induction of anesthesia, immediately after insertion of CILA, immediately after tracheal intubation and immediately after CILA was withdrawn. Results CILA was inserted successfully in all patients. In group B tracheal intubation was accomplished at first attempt in 26 patients, at 2nd or 3rd attempt in 2 patients and failed in 2 patients. In group FOB tracheal intubation was much easier and accomplished at 1st attempt in 29 patients and at 2nd attempt in 1 patient. Twenty four of 25 patients expected to be difficult intubation were intubated successfully. The two groups were comparable with respect to hemodynamic changes during intubation. Conclusion It is possible to intubate via CILA. The success rate is high with minimal cardiovascular response.
2.Prenatal ultrasound of fetus with echogenic bowel and complicated structural abnormalities/chromosome abnormality
Hui, CAO ; Xue-dong, DENG ; Zhong, YANG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(10):49-53
Objective To explore the prenatal ultrasonographic features of fetuses diagnosed as echogenic bowel and chromosomal abnormalities. Methods From September 2009 to June 2013, eighty cases diagnosed as echogenic bowel by prenatal ultrasound screening in our hospitals underwent chromosomal karyotype analysis and were followed up till fetal birth. The prenatal ultrasonographic features were carefully correlated with the postnatal findings. Results Prenatal ultrasoundand chromosomal findings of the 80 cases were:(1) Fifty-eight cases of fetuses with echogenic bowel alone (72.5%, 58/80, without chromosomal karyotype abnormalities). (2) Eleven cases of fetuses with additional ultrasound soft markers (13.8%, 11/80, without chromosomal karyotype abnormalities). The ultrasound examination revealed 8 cases of choroid plexus cysts, 1 case of single umbilical artery, 1 case of shorter nasal bone, and 1 case of echogenic intracardiac focus. (3) Five cases of fetuses with severe functional abnormalities or complex structural malformations and normal chromosomal karyotype. The ultrasound examination revealed 3 cases of structural cardiac malformations, 1 case of heart failure and 2 cases of central nervous system malformations. Of them,one case showed complex malformations (right ventricular dysplasia syndrome, cerebellar dysplasia and single umbilical artery), whereas the remaining 4 cases only involve single malformation. (4)Six cases had chromosomal abnormalities (7.5%, 6/80), including 3 cases of abnormal chromosome microdeletions, and 3 cases of abnormal chromosome numbers (1 21-trisomy syndrome, 1 18-trisomy syndrome, and 1 triploid syndrome). All of them had severe structural malformations and abnormal soft markers. The ultrasound examination revealed 2 cases of severe cardiac malformations, 2 cases of central nervous system malformations, 1 case of pericardial/peritoneal effusion, and 1 case of placental chorionic multiple hemangioma. One case of holoprosencephaly (donor of the twins) ended with intrauterine death. The associated abnormal soft markers include nuchal fold (NF) thickening, choroid plexus cysts, umbilical cord cysts, single umbilical artery, and placental chorionic hemangioma. Conclusions The fetuses with echogenic bowelaloneusualyhaveagoodprognosis.Insomecases,echogenicbowelmaydisappearduringvfolow-up.The fetuses complicated with severe structural malformations and chromosomal abnormalities have poor prognosis. For the fetuses diagnosed of echogenic bowel by prenatal ultrasound screening, systematic ultrasound examination should be carried out and clinical chromosomal karyotype analysis was suggested.
3.Studies on correlativity between in vivo and in vitro release of XIANGHE SUPPOSITORY
Liu YANG ; Yuanhui DENG ; Yuzhen DONG ;
Chinese Traditional and Herbal Drugs 1994;0(05):-
Object To study the correlativity between the in vivo release of healthy volunteers and the in vitro dissolution of XIANGHE SUPPOSITORY(XS). Methods The electromagnetic stirring method was used to determine the in vitro dissolution of XS, and the in vivo release was got by the indirect method, assaying the content of the left XS after it had released in administering system, HPLC was used for the determination of XS with the index of variant content of berberine hydrochloride. Results A good correlativity was shown between the percentage of in vivo release and in vitro dissolution of XS. Conclusion In vitro dissolution test under the given conditions could indicate the in vivo absorption of XS.
4.Comparative Study on the Effect of Implanted Stent or Selected Operation in Patients with Acute Occlusion of Right Coronary Artery
Dong YANG ; Yibing LU ; Weihua ZHANG ; Xuefeng GUANG ; Jie DENG
Journal of Kunming Medical University 2014;(2):31-33
Objective To study the effect of implanted stent or selected operation in patients with acute occlusion of right coronary artery during the emergency coronary arteriongraphy. Methods Forty-three patients with acute occlusion of right coronary artery who underwent the emergency coronary arteriongraphy were divided into two groups: the implanted stent group ( n = 23) during the emergency coronary arteriongraphy and the selected operation group (n =20) during the emergency coronary arteriongraphy . Then we observed the general data, the coronary artery pathological changes, preoperative and postoperative thrombus, the blood flow, remained stenosis and the prognosis. Results The implanted stent group was similar to the control group in general condition, but implanted stent group was significantly different from the control group in the near, intermediate and distal coronary artery pathological changes ( <0.05) . The control group was significantly different from the implanted stent group in the thrombus and slowly blood flow ( <0.05) . After three months, we reviewed coronary arteriongraphy and selected operation, The implanted stent group was significantly different from the control in the remained stenosis and slowly blood flow (<0.05) . But the implanted stent group was similar to the control groug in the thrombus and new proceeding cardiovascular events. Conclusion When thrombus appears in acute occlusion of right coronary artery, we can implant stent during the emergency coronary arteriongraphy if the thrombus is little, or we can select operation after PTCA on the contrary.
5.Experimental Study on CompoundWeifu in Gout Treatment
Lizhen HUANG ; Lingling YANG ; Jiagang DENG ; Zhengcai DU ; Dong LU
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(7):1409-1413
This article was aimed to study the action of antigout effects of compoundWeifu. Through the acute gouty arthritis models of rabbits and rats induced by micro-crystal sodium urate (MSU). The histopathological changes of synovial tissues among rabbits were observed. And the contents of TNF-α, IL-1β, IL-6 in rabbit serum were determined. The swelling degree of the rats’ feet and the content of prostaglandin E2 (PGE2) from the inflammatory exudate foot induced by MSU were also determined. The antigout effects of compoundWeifu were observed. The results showed that the grade of the vascular congestion, swelling and inflammatory cell infiltration in synovial tissues in the high-dose and medium-dose CompoundWeifu group had significantly improved (P <0.05). And the levels of TNF-α, IL-1β, IL-6 in serum were significantly decreased (P< 0.05, orP < 0.01). It can obviously reduce the swelling degree induced by MSU, and the level of PGE2 in the inflammatory exudate foot (P< 0.05, orP < 0.01). It was concluded that CompoundWeifu had obvious antigout effects in the study.
6.Effect of gap junction on permeability of blood-brain barrier in rats after cerebral ischemia- reperfusion
Dong HAN ; Jia-Chun FENG ; Fang DENG ; Yi-Min YANG ;
Chinese Journal of Neurology 2005;0(07):-
Objective To investigate the possible mechanism of the gap junctional influence on the change in permeability of the blood-brain barrier(BBB)after reperfusion subsequent to cerebral ischemia.Methods In the test laser scanning confocal microscope(LSCM)was used to investigate the change of Cx43 levels and distribution.The MCAO/R model was induced using intraluminal suture technique first described by Longa with a little modification.A total of 60 Wistar rats were divided into 4 groups:the sham-operation group,control group,octanol-treatment group and DMSO vehicle control group. Control group were further divided into seven subgroups at different time points of reperfusion after middle cerebral artery occlusion.To observe the change in permeability of BBB,Evans blue(EB)in the brain tissue was surveyed by the means of EB fluorescent quantitation.Octanol-treatment group and DMSO vehicle control group were done at the point of the peak of permeability of BBB.Octanol,the specific blocker for gap junctions(GJ)was used in an intervention study.To compare the amount of EB with the same point of groups,the influence of octanol on BBB permeability was investigated.Results At 3 h of reperfusion after cerebral ischemia for 2 h,the permeability of BBB began to increase,reached the peak at 24 h of reperfusion and was still elevated at 72 h.The Cx43 expression formed into bigger plague and remained linear disposition in the penumbra after reperfusion subsequent to cerebral ischemia.Octanol group was done at 24 h of reperfusion after cerebral ischemia.The amount of EB of octanol group((4.924?0.296)?g/g)was significantly lower than that of corresponding operation control group(5.543?0.506)?g/g.Conclusions (1)Cx43 expression is concentrated around vessels in brain.The Cx43 forms into bigger plague and the function maybe strengthens after reperfusion.Gap junction might aggravate the disruption of BBB.(2) Octanol,the specific blocker of gap junctions,could effectively prevent the permeability of BBB from increasing and has a protective effect on BBB.
7.Echocardiography diagnose one case of infantile tricuspid myxoma.
Chuan-ju HOU ; Yu-hua CAO ; Dong-an DENG ; Xian-yang ZHU
Chinese Journal of Pediatrics 2004;42(7):553-553
Echocardiography
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methods
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Female
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Heart Neoplasms
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diagnosis
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surgery
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Humans
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Infant
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Myxoma
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diagnosis
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surgery
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Treatment Outcome
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Tricuspid Valve
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physiopathology
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surgery
8.Effect of air pollution on health service demand of the elderly and middle-age patients with hypertension,cardiovascular and cerebrovascular diseases:based on analysis of data from CHARLS
Jiao SHAN ; Hongyu LI ; Guofeng LIU ; Xuan YANG ; Wei DONG ; Weiyan JIAN ; Furong DENG ; Xinbiao GUO
Journal of Peking University(Health Sciences) 2016;48(3):460-464
Objective:To study the association of air pollution with health service demand of the elderly and middle-age patients with cardiovascular and cerebrovascular diseases,and to provide a scientific ba-sis for development of environmental protection policy and health service policy of the Chinese govern-ment.Methods:This study included survey data on self-evaluated health,outpatient service demand and inpatient service demand of the patients with hypertension,heart disease and stroke in 62 cities of 1 7 provinces from China Health and Retirement Longitudinal Study(CHARLS)in 201 1 and 201 3,and com-bined it with the data on the annual concentrations of inhalable particulate matter(PM1 0 ),sulfur dioxide (SO2 )and nitrogen dioxide(NO2 )of those provinces and cities.Conditional Logistic regression was car-ried out to assess the possible effects of air pollutants on self-evaluated health and health service utiliza-tion.Results:The results showed that turning points existed in the effects of concentrations of NO2 and SO2 on the health service demand of the patients with hypertension,heart disease and stroke.The inpa-tient service demand of the hypertension patients increased with NO2 concentration when it was lower than 35.1 μg/m3 and decreased with NO2 concentration for higher value.Self-evaluated health of the patients with heart disease and stroke decreased with SO2 concentration when it was lower than 63.8 μg/m3 and increased with SO2 concentration for higher value.In addition,no evidence was found for the association between PM1 0 and health service demand.Conclusion:Air pollution may have effects on health service demand of the patients with hypertension,cardiovascular and cerebrovascular diseases,and different air pollutants at high or low concentration may have different health effects.
9.Analysis of polymorphism of Pfhrp2 gene in Plasmodium falciparum from falciparum malaria patients in Yunnan Province
Ying DONG ; Aiming SUN ; Mengni CHEN ; Yanchun XU ; Xianghua MAO ; Yan DENG ; Henlin YANG
Chinese Journal of Schistosomiasis Control 2016;28(4):411-417
Objective To analyze the polymorphism of histidine rich protein 2(HRP II)gene in Plasmodium falciparum (Pfhrp2)from falciparum malaria patients in Yunnan Province,so as to lay the foundation for studying the defection of antigen genes of Plasmodium. Methods The filter paper blood samples and related information of falciparum malaria cases reported were obtained in Yunnan Province from August 2012 to September 2015. Under the guidance of the specific primers,the exon2 regions in Pfhrp2 gene in P. falciparum from DNA samples were amplified by PCR,and the PCR products were sequenced. The sequences of exon2 region in Pfhrp2 gene were blasted by comparing with the reference sequences AY816237,AY816240,and AY816301. Next,the polymorphism of the sequence in exon2 region of Pfhrp2 gene was analyzed by MEGA 5.04 software. The conserved sites and genetic distances between sequences were calculated by using the software as well,and the clustering tree was drawn according to the genetic distances between the amino acid sequences. Results A total of 218 bloods samples from the falciparum malaria cases in 15 prefectures of Yunnan Province were collected,and the sources of infection included Yun?nan,Africa and Myanmar. The PCR results showed that the exon2 regions in Pfhrp2 genes of 155 samples were positive by am?plification and their products were sequenced successfully. The sequence analysis showed that the length range of the amino acid residues of exon2 region in Pfhrp2 gene was from 115 aa to 298 aa,the average length was 239.7 aa. There was no statistically significance among the means of the amino acid residues of the isolates from Africa( 239.9 aa),Myanmar(239.5 aa)and Yun?nan(241.6 aa)(F=0.025,P>0.05). All the 155 amino acid sequences ended with type 12 repeat,98.1%(152/155)of them started with type 1 repeat and 1.9%(3/155)of them started with type 2. Type 2 presented most frequently repeat in all the se?quences and the average repeat times were 12.9. The homologous locus of the DNA sequences in exon2 regions of the 155 Pfhrp2 genes was 894 bp,among which the conservative sites accounted for 20.6%(186/894),and the variable sites for 78.2%(699/894). The genetic distances between the sequences of Africa isolates ranged from 0 to 0.741,and those of the Myanmar and Yun?nan isolates were 0-0.948 and 0-0.750,respectively. The cluster analysis showed that all the 155 sequences clustered into 3 cat?egories on genetic distances between amino acid sequences according to the size of the amino acid sequence length. At the same level,the sequences had approximate lengths and amino acid repeat types. Conclusion The sequence of exon2 region in Pfhrp2 gene of P. falciparum from falciparum malaria cases in Yunnan Province is highly polymorphic,the P. falciparum iso?lates are clustered mainly according to the size of the amino acid sequence of exon2 region in Pfhrp2 gene.
10.Identification of epitope recognized by mAb 15 A11 sepecific against cartilage oli-gomeric matrix protein
Ruiling WANG ; Dong HAN ; Weiwei HAN ; Lingfu DENG ; Yongze YANG ; Li XIONG ; Deli LIU ; Hui GENG
Chinese Journal of Immunology 2015;(11):1465-1471
Objective:To identify the epitope of mAb15A11 which is specific against RA associated autoantigen cartilage oligomeric matrix protein ( COMP ).Methods: A filamentous phage library displaying random linear dodecapeptides was used to mapping the epitope of mAb15A11.After three rounds of screenings,40 phage clones were selected at random and sequenced.The specificity of phages was confirmed by enzyme immunoassays.Homology search by ClustalW2 and structure analysis by PyMol to identified the epitope amino acid sequence.Western blot analysis of COMP and ELISA analysis of COMP-derived peptides were used to confirm epitope′s characterization.Results: After repeated screenings using bio-panning method, 2 clones were identified, which interacted specifically with mAb 15A11.Homology search did not find succession consensus sequence within COMP molecular,which indicated that the epitope was not linear.PyMol Structure analysis identified the rationality of conformational epitope.Western blot analysis and ELISA of EDTA-treated COMP further prove an conformational structure of the epitope recognized by mAb 15A11.ELISA analysis of COMP-derived peptides demonstrated both disulfide bonds between 229 C-243 C and 237 C-253 C and every epitope amino acid of 232 G,238 H,240 H,241 A,244 V,247 R and 251 R were essential to the binding of mAb 15A11 with COMP.Conclusion: In this study, the potential B cell antigentic epitopes of mAb 15A11 was identified by phage display library.The epitope amino acids sequence and char-acterization were also recognized.It may have important theoretical value for the study of reaction mechanism of COMP antibody and antigen and may also show application significance in the detection of rheumatoid arthritis.