1.Bibliometric analysis of hot issues of pediatrics from 2012 to 2016
Xiaoyun CAO ; Shichao XIN ; Yuhong ZHAO
International Journal of Pediatrics 2017;44(6):426-431
Objective To conduct a bibliometric analysis of pediatric literature in recent 5 years in Pubmed database,and to explore the focus issues of pediatrics.Methods Bibliographies from research literature of pediatrics in PubMed database from 2012 through 2016 were retrieved.The publication years,journals,the prolific authors and frequency of Mesh major topics were counted.MeSH heading/subheading matrix were formed.SPSS 19.0 statistical software was applied for clustering analysis.Results A total of 9375 articles were included.There were 45 MeSH heading/subheadings,which were clustered into 4 categories.Conclusion The research focuses in pediatrics are as follows:the clinical competence training and education research;the related pediatric issues from the perspective of social medicine;medical error prevention and the related legislation;the situation of Chinese pediatricians and doctor-patient relationship.
2.Value of universal primer PCR for diagnosing bacterial and fungal infec-tion of central nervous system
Jingrong CAO ; Jing CHEN ; Shichao GAO ; Diandian CHEN ; Peichang WANG
Chinese Journal of Infection Control 2016;15(3):145-149
Objective To understand pathogen spectrum of bacterial and fungal infection of central nervous system (CNS),and evaluate the etiological diagnostic value of universal primer polymerase chain reaction (PCR).Methods Data about patients with suspected or confirmed bacterial and fungal infection of CNS from January 2009 to March 2015 were collected,species of pathogens from cerebrospinal fluid (CSF)were analyzed,DNA from patients’CSF were performed PCR amplification and sequencing with universal primers of bacterial 16S rRNA and fungal 28S rRNA, PCR detection results were compared with CSF culture during the same period.Results A total of 400 patients were with confirmed or suspected bacterial or fungal infection of CNS,132 of whom were with positive CSF culture.150 pathogenic isolates were detected,including 48 isolates of gram-positive bacteria,90 gram-negative bacteria,and 12 fungi;the top three isolated bacteria were Acinetobacter baumannii (n =32 ),coagulase negative staphylococcus (n=16)and Klebsiella pneumoniae (n=13);the most common fungus was Cryptococcus neoformans (n=8).CSF from 88 infected patients and 20 non-infected patients were selected for PCR amplification,the sensitive of PCR am-plification assay was higher than the culture method (35.23% [31/88]vs 28.41 %[25/88],χ2 =4.17,P <0.05).
3.Value of 16S rRNA gene amplification for identification of clinical rare pathogens
Jingrong CAO ; Shichao GAO ; Diandian CHEN ; Jing CHEN ; Rong MIN ; Peichang WANG
Chinese Journal of Infection Control 2016;15(4):222-226
Objective To evaluate the value of amplification and sequencing of 16S rRNA gene in the identification of clinical rare pathogenic bacteria,and guide the diagnosis and treatment for related clinical infection.Methods 12 bacterial isolates that were difficult,or unable to be identified with conventional laboratory methods,or with special phenotypes were collected. The 16S rRNA gene was amplified by polymerase chain reaction (PCR),then sequenced for identifying bacterial species through BLAST comparison,clinical characteristics of related infection were ana-lyzed.Results 12 clinical isolates were all positive for PCR amplification (about 1500 bp),species were all identi-fied (similarity≥99% ),the identified strains were Listeriamonocytogenes(n= 2),Brucellamelitensis(n= 2),Fu-sobacteriummortiferum(n= 1),Rothiaaeria(n= 1),Nocardiafarcinica(n= 1),Staphylococcussaccharolyticus (n= 1 ),Rhizobiumradiobacter(n= 1 ),Prevotellabivia(n= 1 ),Ralstoniamannitolilytica(n= 1 ),and Atopobium vaginae(n= 1 ). The sensitivity of 16S rRNA gene amplification was high,and the minimum detection limit of Escherichiacoli ATCC 25922 was 1.5×101 CFU/mL. Clinical data of 12 patients revealed that these strains can cause multi-sites and multi-types of infection,after patients received targeted antimicrobial therapy,11 improved, and 1 died.Conclusion Sequencing for 16S rRNA gene can rapidly and accurately identify rare,anaerobic,and difficult cultured bacteria,provide laboratory evidence for etiological diagnosis and treatment of different types of infection.
4.Clinical value of polymerase chain reaction in diagnosis of bacterial and fungal infection of central nervous system
Jing CHEN ; Jingrong CAO ; Shichao GAO ; Rong MIN ; Peichang WANG
Chinese Journal of Infection and Chemotherapy 2017;17(6):637-642
Objective To examine the clinical value of polymerase chain reaction (PCR) in rapid diagnosis of bacterial and fungal infection of central nervous system.Methods The cerebrospinal fluid (CSF) samples were collected from 137 patients for DNA extraction.PCR was used to amplify the DNA of pathogenic bacteria and fungi using universal primers.The PCR products were subjected to DNA sequencing analysis for identifying microbial species.The conventional culture of pathogens was carried out simultaneously as control.Results PCR revealed bacterial pathogen in 50 of the 137 CSF samples,fungal pathogen in 6 of the 137 CSF samples.Conventional culture of CSF reported positive bacterial infection in 38 cases,fungal infection in 5 cases.PCR provided diagnostic sensitivity of 40.9%,specificity 100%,positive predictive value 100%,negative predictive value 38.2%.The diagnostic efficiency was 56.7%.In contrast,the conventional culture achieved the results of 31.4%,100%,100%,34.7%,44.4%,respectively.The sensitivity,negative predictive value,and diagnostic efficiency of PCR were significantly better than conventional culture method.The coincidence rate between PCR and conventional culture was 97.7%.Conclusions Universal primer-based PCR is characteristic of short turnaround time,specificity,sensitivity and accuracy,which is very useful for rapid diagnosis of the pathogenic bacteria and fungi in central nervous system infections.
5.Study on glycosaminoglycan from Apostichopus Japonius on cellular immuno-regulation function of peripheral blood cells from pulmonary tuberculosis patients in vitro
Liangxu XIA ; Cunzhi LIN ; Mingju SHAO ; Shichao CUI ; Yiwei CAO ; Zhihua LYU
Journal of Chinese Physician 2018;20(9):1334-1337
Objective To investigate the effects of glycosaminoglycans (HGAG) on the immune function of peripheral blood cells from patients with pulmonary tuberculosis.Methods Peripheral blood monouclear cells (PBMC) were isolated from peripheral blood of 40 healthy people (healthy group) and 30 tuberculosis patients (tuberculosis group) and cocultured with HGAG in vitro for 24 hours.Flow cytometry was used to detect the expression of CD45RA and CD45RO,as well as the expression of CD1a and CD83.Results The results showed that the expression of CD45RA and CD45RO in the tuberculosis group was the most significant (P < 0.05) at the concentration of 50 μg/m coculturing with HGAG.The expression of CD45RA and CD45RO were most obvious in the healthy group at the concentration of 10 μg/ml and 50 μg/ml respectively (P <0.001).The difference of CD45RA between the two groups was no significant (P >0.05),while the difference of CD45RO was statistically significant (P < 0.01) before co-culturing.The expression of CD45RA and CD45RO at 10 μg/ml and 50 μg/ml after co-culturing with HGAG were statistically significant (P < 0.05).There was no statistical difference in CD1a and CD83 in healthy group before and after co-culturing (P > 0.05),while there was statistically difference (P < 0.05) before and after culturing in tuberculosis group.Before co-culturing,there was no significant difference in the expression of CD1a between the healthy group and the tuberculosis group (P > 0.05),but CD83 expression was statistically different (P < 0.001).After co-culturing,there were no significant differences in CD1a and CD83 expression between healthy and healthy groups (P > 0.05).Conclusions HGAG can down-regulate the expression of CD45RA and up-regulate the expression of CD45RO in a certain concentration range,and promote the maturation of dendritic cells (DC) in tuberculosis patients and regulate the cellular immunity of patients with pulmonary tuberculosis in vitro.
6.Application of bone marrow fenestration technique for rotator cuff repair at the foot-print zone of rotator cuff under arthroscopy
Wenyong FEI ; Jingcheng WANG ; Chuanzhi XIONG ; Yaojia LU ; Lianqi YAN ; Yao ZHANG ; Shichao CAO ; Jiyang TAN
Chinese Journal of Orthopaedic Trauma 2018;20(12):1026-1030
Objective To evaluate the efficacy of bone marrow fenestration technique used for ro-tator cuff repair at the foot-print zone of rotator cuff under arthroscopy. Methods A total of 30 patients with full-thickness rotator cuff tear ( from 3 cm to 5 cm) were enrolled for this retrospective study who had been treated at Department of Orthopaedics, The People's Hospital of North Jiangsu from January 2015 to December 2016. Of them, 15 were treated under arthroscopy with simple suture bridge technique ( SB group ) and the other 15 under arthroscopy with bone marrow fenestration and suture bridge techniques ( BMSB group ) . The 2 groups were compared in terms of visual analogue scale ( VAS ) , American Shoulder and Elbow Surgeons ( ASES ) scale, Constant scores,range of motion of the affected shoulder and rate of retear after surgery. Results All the patients received follow-up for 11 to 14 months. Significant improvements were achieved in both groups in VAS scores at 3 months ( 1.9 ± 0.6 and 0.9 ± 0.6 ) , ASES scores ( 90.7 ± 3.6 and 92.3 ± 4.2 ) and Constant scores ( 88.9 ± 2.5 and 87.4 ± 3.4 ) at the last follow-up, compared with the preoperative values ( 4.7 ± 1.1 and 4.3 ± 1.5, 58.2 ± 7.2 and 55.6 ± 4.4, and 57.3 ± 6.7 and 55.9 ± 10.3, respectively) ( P <0.05), but there were no significant differences between the 2 groups in ASES scores, Constant scores or range of motion of the affected shoulder at the last follow-up ( P> 0.05). The VAS scores at 3 months for the BMSB group (0.9 ± 0.6) were significantly lower than that for the SB group (1.9 ± 0.6) ( P <0.05). There was no significant difference either between the 2 groups in the retear rate [ 20.0% ( 3/15 ) for SB group versus 26.7% ( 4/15 ) for BMSB group ] ( P > 0.05 ) . Conclusion Application of bone marrow fenestration technique in addition to suture bridge technique can obviously relieve pain after rotator cuff repair, though it shows no advantage in functional recovery of the shoulder joint.
7.Methylation of ER and ER gene and its significance in primary and relapsed/metastatic lesions of breast cancer.
Li SUN ; Dahai YU ; Haitao YIN ; Susheng CAO ; Shichao ZHUO ; Ling WEI ; Yanhua LIU ; Sanyuan SUN
Chinese Journal of Oncology 2014;36(2):128-131
OBJECTIVETo investigate the different expressions of ER and ER gene status between primary and relapsed/metastatic lesions and their clinical significance.
METHODSER and ER gene status of primary and relapse/metastatic breast cancer masked in 70 metastatic breast cancer patients were assessed by determination of methylation status by immunohistochemistry (IHC) and methylation specific polymerase chain reaction (MSP), respectively.
RESULTSPositive rate of ER in the primary breast cancers was 64.3%, and in the relapse/metastatic lesions was 41.4% (P < 0.05). There were six patients whose positive ER status was changed to negative, among them the ER gene status was changed from demethylation to hypermethylation in four cases. Another four patients with negative ER status changed to positive, and their ER gene hypermethylation changed to ER demethylation status.
CONCLUSIONSThe discordance of ER expression status in primary and relapse/metastatic lesions of breast cancer might be related to DNA methylation status.
Adult ; Aged ; Breast Neoplasms ; genetics ; metabolism ; pathology ; Breast Neoplasms, Male ; genetics ; metabolism ; pathology ; Carcinoma, Ductal, Breast ; genetics ; metabolism ; pathology ; secondary ; DNA Methylation ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Immunohistochemistry ; Liver Neoplasms ; genetics ; metabolism ; secondary ; Lung Neoplasms ; genetics ; metabolism ; secondary ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Receptors, Estrogen ; genetics ; metabolism
8.Effects of radioactive 125I-seeds on the growth inhibition and apoptosis induction of human lung adenocarcinoma cells A549 in nude mice
Qian MENG ; Xinhong ZHU ; Lulu XIU ; Cunzhi LIN ; Shichao CUI ; Yiwei CAO
Chinese Journal of Radiological Medicine and Protection 2018;38(6):407-413
Objective To investigate the inhibitory effects of radioactive 125I seeds on the growth and apoptosis of human lung adenocarcinoma cells A 549 in nude mice.Methods Human lung adenocarcinoma A549 cells were cultured in vitro and subcutaneously transplanted in BALA/c nude mice.When the tumor size reached(300 ±50)mm3,40 tumor-bearing mice were divided into 4 groups by the random number table method as 0,0.6,0.8 mCi(1 Ci=3.7×1010Bq)groups and blank control group,with 10 in each group.The 125I seeds of 0,0.6,and 0.8 mCi were implanted into the transplanted tumors in nude mouse,respectively.The blank control group received no treatment.The weight of nude mice was measured regularly every 4 days.The mice were sacrificed on the 32 days after 125I seeds implication.The transplanted tumors were weighed and the weight gain curve for nude mice was plotted.Hematoxylin-eosin(HE)staining was used to observe the histopathological changes of the tumor tissue.Cell apoptosis was detected by TUNEL assay,and the expressions of the P21,Caspase-9,Survivin and Livin proteins were detected by immunohistochemical assay.Results There was no nude mice dead in each group.On the day 28 and 32 after 125I seeds treatment,the body weights of nude mice of 0.6 and 0.8 mCi groups became lighter than those of the blank control group(q=4.26,9.19,4.11,11.59,P<0.05),the tumor weights of the 0.6 and 0.8 mCi groups were significantly decreased(q=5.021,5.692,P<0.05)with tumor inhibition rates of about 49%and 62%.In the 0.6 and 0.8 mCi groups,a large number of tumor cells degenerated to be necrotic cells.In addition,the apoptotic indexes were(50.00 ±2.58)%and(62.33 ± 4.51)%in the 0.6 and 0.8 mCi groups,respectively,and higher than that of blank control group(27.00 ±4.69)%.The expressions of P21 and Caspase-9 proteins in the 0.6 and 0.8 mCi groups were significantly higher than that in the blank control group(χ2=11.380,24.310,11.380,20.376,P<0.05).The expressions of Survivin and Livin proteins in the 0.6 and 0.8 mCi groups was significantly lower than that in the blank control group(χ2=9.643,23.254,15.429,26.667,P<0.05).Conclusions Radioactive 125I seeds can inhibit the proliferation of tumor cells and promote the apoptosis of A 549 cells probably by up-regulating the expressions of P21 and Caspase-9 but down-regulating the expressions of Survivin and Livin.
9. Survey on the self-rated health of doctors and nurses at China′s 144 tertiary public hospitals
Yinuo WU ; Man CAO ; Shichao WU ; Yang LIU ; Huanqian WANG ; Xinyue CHEN ; Jing SUN ; Yu JIANG ; Juan ZHANG ; Jing MA ; Yuanli LIU
Chinese Journal of Hospital Administration 2019;35(9):712-718
Objective:
To establish comprehensive understanding of the self-rated health of the Chinese doctors and nurses and probe into their influencing factors.
Methods:
Data were drawn from a hospital performance survey, which was conducted by the Peking Union School of Public Health from March 18th to April 9th, 2019, among the 144 tertiary public hospitals in 31 provinces, autonomous regions, and municipalities. The survey included a cell-phone based questionnaire filled out by the sampled doctors and nurses, in which they were asked to rate their health using a 5-level Likert scale(from " very poor" to " very good" ). Mann-Whitney
10. Discussion on the Management of Fever Clinic during the Epidemic Period of Corona Virus Disease 2019
Yiwu ZHOU ; Yanqi HE ; Zhen JIANG ; Peng LIU ; Yao CHEN ; Shichao LAI ; Yu CAO
Chinese Journal of Emergency Medicine 2020;29(0):E016-E016
Objective:
To investigate the role of epidemiological history in the screening of Corona Virus Disease 2019 (COVID-19) in fever clinic, to improve the efficiency in fever clinic and reduce the incidence of cross infection.
Methods:
This is a retrospective study. Patients who were admitted to the fever clinic in West China Hospital of Sichuan University from January 23th, 2020 to February 11th, 2020 included the study. According to epidemiological history, the patients were divided into epidemiological history group (the experimental group) and no epidemiological history group (the control group). The two groups of patients were admitted and treated separately. The clinical data, NEWS score, etiology results, viral pneumonia showed on CT, time of visit, COVID-19 patient ratio, and admission composition ratio were compared between the two groups. The measurement data were presented as the mean ± standard deviation (SD), and the numeration data were expressed as ratio or constituent ratio. The measurement data of normal distribution between the two groups were compared by independent sample