Objective:To identify the clinical,laboratory,and radiological markers that could predict a positive GeneXpert result in patients suspected of tuberculous meningitis.Methods:In this prospective,observational study,pat...Objective:To identify the clinical,laboratory,and radiological markers that could predict a positive GeneXpert result in patients suspected of tuberculous meningitis.Methods:In this prospective,observational study,patients with tuberculous meningitis were systematically evaluated.Various clinical,laboratory[including cerebrospinal fluid(CSF)microscopy,culture,and GeneXpert],and neuroimaging factors were examined.All participants were administered anti-tuberculous treatment and corticosteroids.A six-month follow-up was done to evaluate the outcome.Results:Of the 116 patients studied,54(46.6%)tested positive for GeneXpert,while 62(53.4%)were negative.Third cranial nerve involvement(OR 3.71,95%CI 1.052-13.09,P=0.04)and the presence of basal exudates on neuroimaging(OR 5.22,95%CI 2.03-13.42,P=0.001)emerged as independent predictive factors for a positive GeneXpert result.A positive CSF GeneXpert result(P=0.002)and drug resistance(P=0.004)were significantly linked to adverse outcomes.Additionally,a high score on the Medical Research Council stageⅢ(OR 5.64,95%CI 1.18-26.87,P=0.03)and elevated CSF cell counts(OR 1.002,95%CI 1.00-1.001,P=0.03)were identified as independent predictors of poor prognosis.Conclusions:Third cranial nerve involvement and the presence of basal exudates were significant indicators of a positive GeneXpert result.MRC stageⅢdisability and elevated CSF cell counts predicted poor outcomes.展开更多
BACKGROUND： Isolated mycobacterium tuberculosis from cerebrospinal fluid （CSF） is regarded as the ＂gold standard＂ for diagnosis of tuberculous meningitis （TBM）. However, culture of CSF specimens is time-consumi...BACKGROUND： Isolated mycobacterium tuberculosis from cerebrospinal fluid （CSF） is regarded as the ＂gold standard＂ for diagnosis of tuberculous meningitis （TBM）. However, culture of CSF specimens is time-consuming and lacks sensitivity. There is a strong need to determine complementary disease-specific markers, which are essential for increasing early diagnosis and improving prognosis in patients with TBM OBJECTIVE： To establish proteomic profiles of CSF in TBM and normal children using two-dimensional polyacrylamide gel electrophoresis, and to screen for disease-specific proteins. DESIGN, TIME AND SETTING： The case-control study was conducted at the Department of Pediatrics, Xiangya Hospital of Central South University and the Key Laboratory of Cancer Proteomics of Ministry of Public Health of China between January 2008 and January 2009. PARTICIPANTS： The TBM group included three patients with a strongly positive tuberculin skin test, as well as positive CSF mycobacterial staining and culture, who were admitted to the Department of Pediatrics, Xiangya Hospital from January 2008 to January 2009. Three healthy, age- and gender-matched children served as the control group. METHODS： CSF proteins were separated using two-dimensional polyacrylamide gel electrophoresis in both groups. Gels were scanned using Image scanner and LabScan software. Differentially expressed proteins were analyzed using PDQuest 7.0 software. The clearly discernible spots, which were expressed only in the TBM group, were chosen to perform matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis. MAIN OUTCOME MEASURES： Differentially expressed spots on CSF profiles of TBM and normal children were measured. RESULTS： Following comparison of two-dimensional polyacrylamide gel electrophoresis maps between TBM and control groups, 546 and 533 spots were detected, respectively. A total of 64 differentially expressed proteins were observed between the groups, including 15 upregulated spots, eight downregulated spots, 27 spots that were exclusively expressed in the TBM group, and 14 spots that were exclusively expressed in the control group. At total of 20 spots that were exclusively expressed in the TBM group were chosen for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis, and 20 peptide mass fingerprints were obtained. After searching the data base, 16 proteins were matched. CONCLUSION： Two-dimensional polyacrylamide gel electrophoresis profiles of the CSF proteome were successfully established in the TBM and normal children. Parts of these differentially expressed proteins were identified through mass spectrometry and bioinformatics. Results indicated that apolipoprotein A I, anti-tumor necrosis factor-alpha antibody, crystal structure of MRP14 and HLA class II histocompatibility antigen DRB1-4 could be closely correlated with TBM pathogenesis.展开更多
BACKGROUND Bacterial meningitis(BM)is a common central nervous system inflammatory disease.BM may cause serious complications,and early diagnosis is essential to improve the prognosis of affected patients.CASE SUMMARY...BACKGROUND Bacterial meningitis(BM)is a common central nervous system inflammatory disease.BM may cause serious complications,and early diagnosis is essential to improve the prognosis of affected patients.CASE SUMMARY A 37-year-old man was hospitalized with purulent meningitis because of worsening headache for 12 h,accompanied by vomiting,fever,and rhinorrhea.Head computed tomography showed a lesion in the left frontal lobe.Infectious disease screening showed positivity for hepatitis B surface antigen,hepatitis B e antigen,and hepatitis B core antigen.Cerebrospinal fluid(CSF)leak was suspected based on clinical history.Streptococcus pneumoniae(S.pneumoniae)was detected in CSF by metagenomic next-generation sequencing(mNGS)technology,confirming the diagnosis of purulent BM.After treatment,multiplex PCR indicated the presence of hepatitis B virus(HBV)DNA and absence of S.pneumoniae DNA in CSF samples.CONCLUSION We report a rare case of HBV in the CSF of a patient with purulent BM.Multiplex PCR is more sensitive than mNGS for detecting HBV DNA.展开更多
目的分析白细胞介素23(IL-23)、腺苷脱氨酶(ADA)、白三烯B4(LTB4)在结核性脑膜炎患者脑脊液中的表达水平及临床意义。方法选取2015年1月—2017年12月我院收治的脑膜炎患者206例,根据疾病类型将206例分为结核性脑膜炎组79例、化脓性脑膜...目的分析白细胞介素23(IL-23)、腺苷脱氨酶(ADA)、白三烯B4(LTB4)在结核性脑膜炎患者脑脊液中的表达水平及临床意义。方法选取2015年1月—2017年12月我院收治的脑膜炎患者206例,根据疾病类型将206例分为结核性脑膜炎组79例、化脓性脑膜炎组61例和病毒性脑膜炎组66例。比较3组脑脊液IL-23、ADA、LTB4水平;根据英国医学研究理事会(UK medical research council,MRC)分期标准,比较不同病情分期的结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达情况;采用Spearman相关性分析,探讨MRC分期与结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平的相关性。结果①3组脑脊液IL-23、ADA、LTB4水平存在明显差异(P<0.01);结核性脑膜炎组脑脊液IL-23、ADA、LTB4水平显著高于化脓性脑膜炎组及病毒性脑膜炎组,化脓性脑膜炎组上述指标亦高于病毒性脑膜炎组,差异均有统计学意义(P<0.01)。②不同MRC分期的结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平存在明显差异(P<0.01),Ⅲ期患者IL-23、ADA、LTB4均高于Ⅰ期患者,且Ⅲ期患者中仅有LTB4高于Ⅱ期患者,差异均有统计学意义(P<0.01)。③结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平与MRC分期呈正相关(r分别为0.361、0.320、0.299,P均<0.001)。结论结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平随病情严重程度的加重而升高,对临床初步评估患者病情严重程度及预后有一定意义。展开更多
文摘Objective:To identify the clinical,laboratory,and radiological markers that could predict a positive GeneXpert result in patients suspected of tuberculous meningitis.Methods:In this prospective,observational study,patients with tuberculous meningitis were systematically evaluated.Various clinical,laboratory[including cerebrospinal fluid(CSF)microscopy,culture,and GeneXpert],and neuroimaging factors were examined.All participants were administered anti-tuberculous treatment and corticosteroids.A six-month follow-up was done to evaluate the outcome.Results:Of the 116 patients studied,54(46.6%)tested positive for GeneXpert,while 62(53.4%)were negative.Third cranial nerve involvement(OR 3.71,95%CI 1.052-13.09,P=0.04)and the presence of basal exudates on neuroimaging(OR 5.22,95%CI 2.03-13.42,P=0.001)emerged as independent predictive factors for a positive GeneXpert result.A positive CSF GeneXpert result(P=0.002)and drug resistance(P=0.004)were significantly linked to adverse outcomes.Additionally,a high score on the Medical Research Council stageⅢ(OR 5.64,95%CI 1.18-26.87,P=0.03)and elevated CSF cell counts(OR 1.002,95%CI 1.00-1.001,P=0.03)were identified as independent predictors of poor prognosis.Conclusions:Third cranial nerve involvement and the presence of basal exudates were significant indicators of a positive GeneXpert result.MRC stageⅢdisability and elevated CSF cell counts predicted poor outcomes.
基金the National Natural Science Foundation of China, No. 30901631the Scientific Research Foundation of Health Department of Hunan Province, No. B2007027
文摘BACKGROUND： Isolated mycobacterium tuberculosis from cerebrospinal fluid （CSF） is regarded as the ＂gold standard＂ for diagnosis of tuberculous meningitis （TBM）. However, culture of CSF specimens is time-consuming and lacks sensitivity. There is a strong need to determine complementary disease-specific markers, which are essential for increasing early diagnosis and improving prognosis in patients with TBM OBJECTIVE： To establish proteomic profiles of CSF in TBM and normal children using two-dimensional polyacrylamide gel electrophoresis, and to screen for disease-specific proteins. DESIGN, TIME AND SETTING： The case-control study was conducted at the Department of Pediatrics, Xiangya Hospital of Central South University and the Key Laboratory of Cancer Proteomics of Ministry of Public Health of China between January 2008 and January 2009. PARTICIPANTS： The TBM group included three patients with a strongly positive tuberculin skin test, as well as positive CSF mycobacterial staining and culture, who were admitted to the Department of Pediatrics, Xiangya Hospital from January 2008 to January 2009. Three healthy, age- and gender-matched children served as the control group. METHODS： CSF proteins were separated using two-dimensional polyacrylamide gel electrophoresis in both groups. Gels were scanned using Image scanner and LabScan software. Differentially expressed proteins were analyzed using PDQuest 7.0 software. The clearly discernible spots, which were expressed only in the TBM group, were chosen to perform matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis. MAIN OUTCOME MEASURES： Differentially expressed spots on CSF profiles of TBM and normal children were measured. RESULTS： Following comparison of two-dimensional polyacrylamide gel electrophoresis maps between TBM and control groups, 546 and 533 spots were detected, respectively. A total of 64 differentially expressed proteins were observed between the groups, including 15 upregulated spots, eight downregulated spots, 27 spots that were exclusively expressed in the TBM group, and 14 spots that were exclusively expressed in the control group. At total of 20 spots that were exclusively expressed in the TBM group were chosen for matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis, and 20 peptide mass fingerprints were obtained. After searching the data base, 16 proteins were matched. CONCLUSION： Two-dimensional polyacrylamide gel electrophoresis profiles of the CSF proteome were successfully established in the TBM and normal children. Parts of these differentially expressed proteins were identified through mass spectrometry and bioinformatics. Results indicated that apolipoprotein A I, anti-tumor necrosis factor-alpha antibody, crystal structure of MRP14 and HLA class II histocompatibility antigen DRB1-4 could be closely correlated with TBM pathogenesis.
文摘BACKGROUND Bacterial meningitis(BM)is a common central nervous system inflammatory disease.BM may cause serious complications,and early diagnosis is essential to improve the prognosis of affected patients.CASE SUMMARY A 37-year-old man was hospitalized with purulent meningitis because of worsening headache for 12 h,accompanied by vomiting,fever,and rhinorrhea.Head computed tomography showed a lesion in the left frontal lobe.Infectious disease screening showed positivity for hepatitis B surface antigen,hepatitis B e antigen,and hepatitis B core antigen.Cerebrospinal fluid(CSF)leak was suspected based on clinical history.Streptococcus pneumoniae(S.pneumoniae)was detected in CSF by metagenomic next-generation sequencing(mNGS)technology,confirming the diagnosis of purulent BM.After treatment,multiplex PCR indicated the presence of hepatitis B virus(HBV)DNA and absence of S.pneumoniae DNA in CSF samples.CONCLUSION We report a rare case of HBV in the CSF of a patient with purulent BM.Multiplex PCR is more sensitive than mNGS for detecting HBV DNA.
文摘目的分析白细胞介素23(IL-23)、腺苷脱氨酶(ADA)、白三烯B4(LTB4)在结核性脑膜炎患者脑脊液中的表达水平及临床意义。方法选取2015年1月—2017年12月我院收治的脑膜炎患者206例,根据疾病类型将206例分为结核性脑膜炎组79例、化脓性脑膜炎组61例和病毒性脑膜炎组66例。比较3组脑脊液IL-23、ADA、LTB4水平;根据英国医学研究理事会(UK medical research council,MRC)分期标准,比较不同病情分期的结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达情况;采用Spearman相关性分析,探讨MRC分期与结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平的相关性。结果①3组脑脊液IL-23、ADA、LTB4水平存在明显差异(P<0.01);结核性脑膜炎组脑脊液IL-23、ADA、LTB4水平显著高于化脓性脑膜炎组及病毒性脑膜炎组,化脓性脑膜炎组上述指标亦高于病毒性脑膜炎组,差异均有统计学意义(P<0.01)。②不同MRC分期的结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平存在明显差异(P<0.01),Ⅲ期患者IL-23、ADA、LTB4均高于Ⅰ期患者,且Ⅲ期患者中仅有LTB4高于Ⅱ期患者,差异均有统计学意义(P<0.01)。③结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平与MRC分期呈正相关(r分别为0.361、0.320、0.299,P均<0.001)。结论结核性脑膜炎患者脑脊液IL-23、ADA、LTB4表达水平随病情严重程度的加重而升高,对临床初步评估患者病情严重程度及预后有一定意义。
