1.Diagnostic value of auxiliary examination for childhood purulent meningitis complicated with subdural effusion
Dandan MAO ; Jianxiang LIAO ; Li JIANG
Chinese Journal of Applied Clinical Pediatrics 2015;(19):1497-1500
Objective To explore the clinical and peripheral blood characteristics of childhood purulent meningitis complicated with subdural effusion. Methods A retrospective cohort chart review was performed. A total of 162 consecutive cases of purulent meningitis were identified in Shenzhen Children′s Hospital from January 2009 to De-cember 2013,all of them were divided into 2 groups according to whether complicating with subdural effusion, and the clinical characteristics of 2 groups were analyzed. The clinical characteristics were analyzed. The statistical data were determined by SPSS 17. 0 software. Results Forty-nine cases(30. 25%)of them were complicated with subdural effu-sion;and 37 cases (75. 5%)of them suffered from the disease in the first 10 days after the onset of the meningitis,and the incidence was 48. 84% (42 cases) in infancy. Fever,lethargy,seizures and bulging fontanelle were its common clinical signs,and there were no significant differences in the incidence between subdural effusion group and the control group(non-subdural effusion group),the white blood cell (WBC) count did not increase markedly and C-reactive pro-tein(CRP) was high in the subdural effusion group on the admission day(Z=1. 74,2. 10,all P<0. 05),but no differ-ence in platelet( PLT) . The PLT was high in the whole meningitis cohort,the ratio of cases whose PLT was higher than 300×109/L reached 93. 75%,but no difference between the 2 groups. There were many factors of WBC on admission, including age, cerebrospinal fluid culture results and the application of antibiotics before admission, but CRP was only affected by antibiotics. Conclusions Subdural effusion is common in infancy,and most occurred in the first 10 days af-ter onset of the meningitis. On admission day the CRP,was high, while WBC did not increase too much. If CRP rises for the second time it might predict the occurrence of subdural effusion in bacterial meningitis. The increased PLT may be considered as clinical feature of infectious diseases. The clinical implication of inflammatory pathophysiology in men-ingitis needs further investigation.
2.Detection of Aspergillus fumigatus thioredoxin reductase GliT antigen-specific T cells by ELISPOT assay in healthy individuals and result evaluation
Lining SHI ; Yuan HU ; Hong LIAO ; Xue HAN ; Dandan HAN ; Xiaojun LI ; Fangqiu LI
Journal of Medical Postgraduates 2014;(12):1286-1289
Objective The purpose of this study was to evaluate the protective potential of the Aspergillus fumigatus thiore -doxin reductase GliT ( TR) antigen by establishing and optimizing ELISPOT assay for TR antigen-specific T cells ( TR/AST) secreting IFN-γand IL-4 in peripheral blood mononuclear cells ( PBMCs ) and explore the role of TR/AST in invasive aspergillosis ( IA ) . Methods We optimized the reaction conditions of ELISPOT by preliminary checkerboard titration and determined the frequencies of positive spot-forming cells ( SFCs) specifically secreting IFN-γand IL-4 in the PBMCs of 20 healthy individuals with TR as specific stimulant and with PHA and PMA as positive controls ,. Results Checkerboard titration demonstrated the best result of ELISPOT with the TR antigen at the final concentration of 10μg/well and PBMCs at 3 ×105/well.The median frequency of IFN-γSFCs was sig-nificantly higher (15 [3.5, 59.5]) than that of IL-4 SFCs (0 [0, 0]) (P<0.001).TR induced IFN-γresponses in all the 20 healthy donors, including 9 cases of strong IFN-γresponse (SFCs>20/3 ×105 PBMCs), accounting for 45%, but failed to induce IL-4 response in 19 of the healthy individuals . Conclusion The Aspergillus fumigatus TR antigen could induce an immunodominant Th1 response , and therefore might be a potential protective antigen .
3.A cross-sectional investigation on health-related knowledge and skills of patients in Chongqing City and its influencing factors
Zijun LIAO ; Hong WANG ; Jiangpeng CHEN ; Mingming HAN ; Liang LIU ; Dandan SONG ; Yun ZHONG
Chongqing Medicine 2015;(1):76-79
Objective To investigate the status on health‐related knowledge and skills among the patients in the Chongqing area and to provide basis for developing public health‐related knowledge and skills .Methods Seven hundred and sixty‐eight patients from 8 general hospitals were sampled ,using the stratified random sampling method .A cross‐sectional investigation on health literacy was conducted with questionnaire“ health awareness survey of patients”,and SAS8 .0 was used to statistically analyze the data .Results The awareness rate of health literacy in Chongqing was 4 .82% .As for the 3 health literacy related aspects including basic health concept and knowledge ,health lif‐estyle and behaviors ,and the health related skills ,the rates were 16 .28% ,2 .21% and 38 .41% respectively .Besides ,the rate of the 5 as‐pects including health conception ,the prevention of infection ,the prevention of chronic diseases ,the safety and the first aid ,the basic medical treatment of analysis were 10 .68% ,20 .31% ,8 .59% ,23 .57% ,10 .68% respectively .There noticed significant differences in different re‐gions ,education ,profession ,the condition of relatives engaged in medical ,medical insurance category(P<0 .05) .Profession and the condition of relatives engaged in medical were the main influencing factors on the level of health‐related knowledge and skills among the patients(P<0 .05) .Conclusion The prevalence of basic health‐related knowledge and skills is low in Chongqing city and we should make comprehensive interventions to improve health liter of patients .
4.Study on pharmacokinetics of matrine by intramuscular administration in rat.
Chenguang ZHAO ; Dandan LIAO ; Xiaoyan HE ; Zhubo LI
China Journal of Chinese Materia Medica 2010;35(10):1315-1318
OBJECTIVETo study the pharmacokinetics of matrine (MT) intramuscular administration in rat.
METHODPlasma concentration of matrine was determined by HPLC under the following conditions: column (Shim-pack VP-ODS, 4. 6 mm x 150 mm, 5 m); eluent (acetonitrile-0.02 mol ammonium acetate buffer-triethylamine 30: 70: 0.04); flow rate was 1 mL x min(-1) and ultraviolet detection wavelength was set at 220 nm; column temperature 40 degrees C; aliquot injected 20 microL. All data of concentration-time of matrine were treated with pharmacokinetics program DAS 2. 1. 1.
RESULTA simple, sensitive and reliable method for determining matrine in rat plasma by HPLC was established. The plasma concentration time profiles of MT fitted in with two-compartment models well, and the main pharmacokinetic parameters found for MT after i. m. infusion were as follows: C(max) = 21.113 9 mg x L(-1), t(max) = 0.75 h, t1/2alpha 1.34 h, t1/2beta = 3.509 h, AUC(0-t) = 90.984 mg x h(-1) x L(-1), AUC(0-infinity) = 100.346 mg x h(-1) x L(-1).
CONCLUSIONCompare with oral administration, the matrine is absorbed well and distributes fast with intramuscular administration; the absolute bioavailability of matrine is higher. According to this, the pharmacological action is also stronger and duration is longer.
Alkaloids ; administration & dosage ; pharmacokinetics ; Animals ; Chromatography, High Pressure Liquid ; methods ; Female ; Injections, Intramuscular ; Male ; Quinolizines ; administration & dosage ; pharmacokinetics ; Rats ; Rats, Sprague-Dawley
5.Effect of ceftiofur hydrochloride on pharmacokinetics of matrine in rats.
Chenguang ZHAO ; Hua ZUO ; Dandan LIAO ; Xiaoyan HE ; Zhubo LI
China Journal of Chinese Materia Medica 2010;35(14):1859-1861
OBJECTIVETo investigate the effect of ceftiofur hydrochloride on the pharmacokinetics of matrine in rats.
METHODThe rats were divided into two groups: one group was administrated with matrine only (control group) and the other was administrated with matrine in combination with ceftiofur hydrochloride. HPLC-UV method was used for determining the plasma concentration of matrine in both groups. The pharmacokinetic parameters were calculated from the plasma concentration-time data using the DAS 2. 1. 1 software program.
RESULTThe main pharmacokinetic parameters for the control group were C(max) = 21.113 9 mg x L(-1), T(max) = 0.75 h, t1/2alpha = 1.34 h, t1/2beta = 3.509 h, AUC(0-t) = 90.984 mg x h(-1) x L(-1) and AUC(0-inifinity) = 100.346 mg x h(-1) x L(-1), and the data for the combination group were C(max) = 11.707 mg x L(-1), T(max) = 0.917 h, t1/2alpha = 1.598 h, t1/2beta = 3.247 h, AUC(0-t) = 53.28 mg x h(-1) x L(-1) and AUC(0-inifinity) = 60.035 mg x h(-1) x L(-1).
CONCLUSIONThe plasma concentration of matrine and bioavailability in combination group were significantly lower than those of the control group. In combination group, matrine had a higher clearance and volume of distribution in the central compartments, as well as a lower volume of distribution in the peripheral compartments.
Alkaloids ; administration & dosage ; blood ; pharmacokinetics ; Animals ; Cephalosporins ; administration & dosage ; blood ; Drug Interactions ; Male ; Quinolizines ; administration & dosage ; blood ; pharmacokinetics ; Random Allocation ; Rats ; Rats, Sprague-Dawley
6.Risk factors for intensive care unit delirium after cardiac operation
Lijing SU ; Yilu YAN ; Wenjuan HUANG ; Qin XU ; Jinhua LIAO ; Huimin LIN ; Dandan WU ; Sailan LI ; Rongfang HU
Chinese Critical Care Medicine 2019;31(2):165-171
Objective? ?To?analyze?the?risk?factors?of?delirium?in?patients?in?cardiac?surgery?intensive?care?unit?(CSICU).? Methods? A?prospective?observational?study?was?performed.?Patients?admitted?to?CSICU?of?Fujian?Medical?University?Union?Hospital?from?March?to?August?in?2017?were?enrolled.?The?combination?of?the?Richmond?agitation?sedation?scale?(RASS)?and?the?ICU-confusion?assessment?method?(CAM-ICU)?were?used?to?evaluate?delirium.?The?patient?was?assessed?on?the?second?day?after?CSICU?admission,?twice?a?day,?the?evaluation?was?stopped,?and?the?follow-up??observation?was?terminated?after?the?patient?was?discharged?from?CSICU.?The?patients?were?divided?into?two?groups?according?to?whether?delirium?occurred?in?CSICU.?The?general?and?clinical?treatment?data?(including?condition,?operation,?anesthesia?and?CSICU?treatment)?of?the?two?groups?were?compared.?The?related?factors?of?delirium?were?identified?by?univariate?analysis?and?multifactor?Logistic?regression?analysis.? Results? A?total?of?318?cases?were?included?in?this?study.?Among?them,?93?cases?had?delirium?and?the?incidence?of?delirium?was?29.2%.?It?was?shown?by?univariate?analysis?that?age,?history?of?hypertension,?type?of?surgery,?surgical?procedure,?American?Society?of?Anesthesiologists?(ASA)?anesthesia?classification,?usage?of?propofol,?plasma?transfusion,?red?blood?cells,?platelet?transfusion,?blood?loss,?operative?time,?cardiopulmonary?bypass?(CPB)?time,?myocardial?block?time,?acute?physiology?and?chronic?health?evaluation?Ⅱ?(APACHEⅡ),?duration?of?mechanical?ventilation,?the?length?of?intensive?care?unit?(ICU)?stay,?postoperative?usage?of?diazepam,?midazolam,?fentanyl,?morphine,?chlorpromazine,?etc.?which?were?related?to?delirium,?and?occupation?? (on-the-job?or?self-employed),?medical?insurance?(city?or?provincial?medical?insurance),?education?(primary?to?junior?high?school,?high?school?or?above)?could?reduce?the?risk?of?delirium.?Colinearity?diagnosis?was?performed?on?variables?with?statistically?significant?differences,?and?variables?with?variance?expansion?factor?(VIF)?3?were?included?in?multivariate?Logistic?regression?analysis.?The?results?showed?that?age,?education?level,?type?of?surgery,?ASA?classification,?CPB?time,?APACHEⅡ,?ICU?mechanical?ventilation?time,?and?post?operation?usage?of?midazolam?were?independently?related?to?delirium?[age:?odds?ratio?(OR)?=?1.625,?95%?confidence?interval?(95%CI)?=?1.303-2.026;?education?level:?OR?=?0.293,?95%CI =?0.171-0.504;?type?of?surgery:?OR?=?2.194,?95%CI =?1.052-4.576;?ASA?classification:?OR?=?1.916,?95%CI =?1.032-3.559;?CPB?time:?OR =?2.125,?95%CI =?1.105-4.088;?APACHEⅡ:?OR =?2.091,?95%CI =?1.005-4.349;?ICU?mechanical?ventilation?time:?OR =?1.943,?95%CI?=?1.269-2.975;?midazolam:?OR =?2.653,?95%CI =?1.328-5.299;?all?P?0.05],?among?which,?high?education?level?has?a?good?protective?effect?on?delirium.? Conclusions? Age,?type?of?surgery,?ASA?classification,?CPB?time,?APACHEⅡ,?ICU?mechanical?ventilation?time,?post?operation?usage?of?midazolam?were?independent?risk?factors?for?delirium,?and?high?education?level?had?a?good?protective?effect.?Among?them,?the?educational?level,?CPB?time,?duration?of?mechanical?ventilation,?and?midazolam?are?intervention?factors.?In?clinical?treatment,?not?only?the?risk?factors?should?be?identified,?but?also?intervention?should?be?taken?to?prevent?the?occurrence?of?delirium.
7.Simulation-based medical education and its implementation in neonatal asphyxia resuscitation training
Chinese Journal of Medical Education Research 2018;17(4):416-419
Simulation-based medical education is a new teaching method using modern intelligent science and technology to carry out clinical practice training,This article analyzes the current situation of simulation teaching training in neonatal asphyxia resuscitation and discusses its advantages,namely highly simulated and repetitive teaching scene,safe and reliable teaching process,potentially incentive teaching environment,flexible teaching content and cooperation of the teaching team.
8.Prenatal ultrasonic diagnosis and genetic analysis of fetal congenital heart diseases
Bocheng LIANG ; Dandan LUO ; Caiqun LUO ; Ying TAN ; Shuyuan OUYANG ; Yimei LIAO ; Ying YUAN ; Huaxuan WEN ; Shengli LI
Chinese Journal of Medical Imaging Technology 2024;40(2):251-255
Objective To explore the genetic characteristics of fetuses with congenital heart diseases(CHD)diagnosed by prenatal ultrasound.Methods Data of 613 singletons with prenatal ultrasonic diagnosed CHD were retrospectively analyzed.The cardiac structural abnormalities were classified into 8 types.Whole-exome sequencing(WES)was performed for 40 fetuses since chromosomal karyotyping analysis and/or chromosomal microarray analysis(CMA)showed benign copy number variations(CNV)or variants of uncertain significance(VUS).Results Among 613 fetuses,479 fetuses underwent both chromosomal karyotyping analysis and CMA,genomic abnormalities were detected in 60 fetuses(60/479,12.53%).Among 134 fetuses underwent only CMA,genomic abnormalities were found in 4 fetuses(4/134,2.99%).According to results of chromosomal karyotyping analysis and/or CMA,abnormalities were noticed in 40 fetuses(40/568,7.04%)among 568 fetuses with isolated CHD,while in 15 fetuses(15/45,33.33%)among 45 fetuses with non-isolated CHD,respectively.Abnormality detection rate of chromosomal karyotyping analysis and/or CMA in fetuses with complex CHD(10/41,24.39%)was higher than that in fetuses with non-complex CHD(54/572,9.44%).Among complex CHD fetuses,abnormality detection rate was the highest in fetuses with conotruncal defect(CTD)combined with malformation of venous system(4/13,30.77%),while among fetuses with non-complex CHD,situs inversus viscerum had the highest detection rate(1/4,25.00%).Among 40 fetuses chromosomal karyotyping analysis and/or CMA showed benign CNV or VUS,WES indicated pathogenic CNV/likely pathogenic CNV(P/LP)in 3 fetuses,VUS in 3 fetuses and benign CNV in 34 fetuses.Conclusion Fetuses with CHD,especially extracardiac malformations had possibilities of genomic abnormalities.Fetuses with CTD combined with malformation of venous system had higher possibilities of genomic abnormalities.Compared with CMA alone,chromosomal karyotyping analysis combined with CMA was helpful for detecting genomic abnormalities.
9.Genetic diagnosis of microcephaly
Xiaofeng LIAO ; Baojian LIAO ; Weihe TAN ; Li WANG ; Dandan WANG ; Erfang TANG ; Fuguang LI ; Xiufeng PAN ; Linghua JI ; Qin SHE
Chinese Journal of Obstetrics and Gynecology 2023;58(3):178-184
Objective:To explore the diagnostic value of chromosome karyotype analysis, chromosomal microarray analysis (CMA) and whole exome sequencing (WES) in microcephaly.Methods:A total of 9 cases of microcephaly fetuses diagnosed by prenatal ultrasound or children with microcephaly diagnosed after birth were selected from the Sixth Affiliated Hospital of Guangzhou Medical University from January 2014 to August 2022.Karyotype analysis and/or CMA were used to detect. The cases with negative karyotype analysis and CMA results were further sequenced by trio-based WES (Trio-WES). Then the coding genes contained in the pathogenic copy number variation (CNV) fragments were analyzed by gene ontology (GO) enrichment. The genes related to the development of the central nervous system contained in the pathogenic CNV and the pathogenic genes found by Trio-WES were combined for gene interaction network analysis.Results:In this study, 9 cases of microcephaly were recruited, with the time of diagnosis ranged from 23 weeks of gestation to 7 years after birth, and the head circumference of fetus or children ranged from 18.3 to 42.5 cm (-7SD to -2SD). Karyotype analysis was detected in all 9 cases and no abnormality result was found. Eight cases were detected by CMA, and one abnormal was found. Five cases were detected by Trio-WES, and two cases were detected with likely pathogenic genes. The GO enrichment analysis of the coding gene in the 4p16.3 microdeletion (pathogenic CNV) region showed that: in biological process, it was mainly concentrated in phototransduction, visible light; in terms of molecular function, it was mainly concentrated in fibroblast growth factor binding; in terms of cell components, it was mainly concentrated in rough endoplasmic reticulum. Gene interaction network analysis suggested that CDC42 gene could interact with CTBP1, HTT and ASPM gene.Conclusions:CMA could be used as a first-line detection technique for microcephaly. When the results of chromosome karyotype analysis and/or CMA are negative, Trio-WES could improve the detection rate of pathogenicity of microcephaly.
10.Feasibility study of prenatal ultrasound in the evaluation of normal fetal sylvian fissure maturation by simplified grading
Yimei LIAO ; Huaxuan WEN ; Bing WANG ; Haishan XIANG ; Qing ZENG ; Yue QIN ; Dandan LUO ; Meiling LIANG ; Xin WEN ; Yan DING ; Mengyu ZHANG ; Zhixuan CHEN ; Ying YUAN ; Shengli LI
Chinese Journal of Ultrasonography 2022;31(1):30-36
Objective:To observe the morphological changes of the sylvian fissure on the transthalamic section of fetal brain at 20-32 weeks, and grade the fetal sylvian fissure development by means of a simple scoring system and explore its clinical feasibility.Methods:From September 2018 to June 2020, 487 normal single fetuses of 20-32 weeks were examined in Shenzhen Maternal and Child Health Hospital Affiliated to Southern Medical University. The sylvian fissure maturation was analyzed on the transthalamic section of fetal brain at 20-32 weeks and was graded from 0 to 5: un-visualized (grade 0), shallow arc (grade 1), obtuse-angled platform (grade 2), right-angled platform (grade 3), acute-angled platform (grade 4), and closed operculum (grade 5). The pregnancy outcomes and gestational age were recorded.Statistical analysis was performed by SPSS 20.0 software using box plot, Mann-Whitney U test, Weighted Kappa coefficient. Results:Left sylvian fissuer grades were obtained in 280 fetuses and right sylvian fissure grades were obtained in 247 fetuses. The fetal sylvian fissure maturation at 20-32 weeks was graded from 0 to 5, which increased with advancing gestation. Grade 0 only appeared in 3 fetuses at 20 weeks, and 99.4% fetuses at 20 weeks had grade ≥1. Grade 1 appeared in 20-22 weeks, grade 2 in 20-25 weeks, grade 3 in 22-26 weeks, grade 4 in 25-32 weeks, and grade 5 in 27-32 weeks. Box-plot and Mann-Whitney U test showed that gestational week distribution of sylvian fissure at all grades was symmetric on both sides ( P>0.05). The Weighted Kappa coefficients were 0.857(95% CI=0.750-0.957) and 0.939 (95% CI=0.859-1.000), respectively, with strong consistency regarding inter- and intra-observer agreements. Conclusions:Fetal sylvian fissure maturation at 20-32 weeks can be evaluated by means of a simple scoring system with symmetrical grading of both sides.