BACKGROUND Silicosis is a type of chronic pulmonary fibrosis caused by long-term inhalation of silica dust particles.There has been no ideal biomarker for the diagnosis and differential diagnosis of silicosis until no...BACKGROUND Silicosis is a type of chronic pulmonary fibrosis caused by long-term inhalation of silica dust particles.There has been no ideal biomarker for the diagnosis and differential diagnosis of silicosis until now.Studies have found that elevated neuron-specific enolase(NSE)concentration in the serum of silicosis patients is helpful for diagnosis and severity assessment of the disease.However,the number of cases in these studies was not enough to arouse attention.AIM To investigate the clinical significance of serum NSE in the diagnosis and staging of silicosis.METHODS From January 2017 to June 2019,326 cases of silicosis confirmed in Quanzhou First Hospital Affiliated to Fujian Medical University were included in the silicosis group.A total of 328 healthy individuals or medical patients without silicosis were included in the control group.Serum NSE concentrations of all subjects were determined by electrochemical luminescence.RESULTS There were no significant differences in sex,age,smoking index and complications between the silicosis and control groups.The mean serum NSE concentration was 26.57±20.95 ng/mL in the silicosis group and 12.42±2.68 ng/mL in the control group.The difference between the two groups was significant(U=15187,P=0.000).Among the 326 patients with silicosis,103 had stage I silicosis,and the mean serum NSE concentration was 15.55±6.23 ng/mL.The mean serum NSE concentration was 21.85±12.05 ng/mL in 70 patients with stage II silicosis.The mean serum NSE concentration was 36.14±25.72 ng/mL in 153 patients with stage III silicosis.Kruskal-Wallis H test suggested that the difference in serum NSE concentration in silicosis patients in the three groups was significant(H=130.196,P=0.000).Receiver operating characteristic curve analysis indicated that the area under the curve was 0.858(95%confidence interval:0.828-0.888;P=0.000).When the NSE concentration was 15.82 ng/mL,the Jorden index was the largest,the sensitivity was 72%,and the specificity was 90%.CONCLUSION Serum NSE concentration may be a promising biomarker for the diagnosis and assessment of severity of silicosis.展开更多
Lung cancer is a leading cause of cancer-related deaths worldwide.It mainly consists of 2 histological types:small cell lung cancer(SCLC)and non-small cell lung cancer(NSCLC,including squamous cell carcinoma and adeno...Lung cancer is a leading cause of cancer-related deaths worldwide.It mainly consists of 2 histological types:small cell lung cancer(SCLC)and non-small cell lung cancer(NSCLC,including squamous cell carcinoma and adenocarcinoma).The present study aimed to assess the role of serum progastrin-releasing peptide(ProGRP),neuron-specific enolase(NSE),and carcinoembryonic antigen(CEA)and their combinations in the histological diagnosis of lung cancer(specially SCLC),which is of great importance for the initiation of treatment and prognostic implications.Serum ProGRP,NSE,and CEA were determined by the electrochemiluminescence immunoassay(ECLIA)in 66 patients with SCLC,73 with adenocarcinoma,44 with squamous cell carcinoma,45 with non-malignant pulmonary diseases,and 50 healthy controls.Receiver operating characteristic curves were constructed to compare the predictive ability of each biochemical marker and their combined detection models to discriminate among the patients with lung cancers of different histological groups,benign pulmonary diseases and healthy individuals.In the ECLIA detection system,ProGRP showed the sensitivity and specificity for SCLC diagnosis were 71.2%and 91.1%to 93.2%,respectively.Among the markers,the largest area under the ROCs was for ProGRP in discriminating SCLC from benign pulmonary diseases,squamous cell carcinoma and adenocarcinoma(0.815,0.859,and 0.835,respectively),which indicated that ProGRP was the most efficient marker for identifying SCLC.Besides,ProGRP and NSE exhibited almost equivalent diagnostic performance in discriminating SCLC from benign diseases.As for squamous cell carcinoma,we recommended proGRP,while for adenocarcinoma,the combination of proGRP and CEA was preferred.Remarkably,when ProGRP≤66pg/mL,CEA was of great value in diagnosing SCLC and adenocarcinoma.If CEA≤5ng/mL,the patient was at higher risk for SCLC,whereas the patient was more likely to be diagnosed with adenocarcinoma.Our study provided promising information about the diagnostic values of serum ProGRP,NSE,CEA in distinguishing SCLC from benign pulmonary diseases and NSCLC,which was of crucial clinical significance in the early diagnosis and therapy of SCLC.展开更多
The neuronal differentiation of mesenchymal stem cells offers a new strategy for the treatment of neurological disorders.Thus,there is a need to identify a noninvasive and sensitive in vivo imaging approach for real-t...The neuronal differentiation of mesenchymal stem cells offers a new strategy for the treatment of neurological disorders.Thus,there is a need to identify a noninvasive and sensitive in vivo imaging approach for real-time monitoring of transplanted stem cells.Our previous study confirmed that magnetic resonance imaging,with a focus on the ferritin heavy chain 1 reporter gene,could track the proliferation and differentiation of bone marrow mesenchymal stem cells that had been transduced with lentivirus carrying the ferritin heavy chain 1 reporter gene.However,we could not determine whether or when bone marrow mesenchymal stem cells had undergone neuronal differentiation based on changes in the magnetic resonance imaging signal.To solve this problem,we identified a neuron-specific enolase that can be differentially expressed before and after neuronal differentiation in stem cells.In this study,we successfully constructed a lentivirus carrying the neuron-specific enolase promoter and expressing the ferritin heavy chain 1 reporter gene;we used this lentivirus to transduce bone marrow mesenchymal stem cells.Cellular and animal studies showed that the neuron-specific enolase promoter effectively drove the expression of ferritin heavy chain 1 after neuronal differentiation of bone marrow mesenchymal stem cells;this led to intracellular accumulation of iron and corresponding changes in the magnetic resonance imaging signal.In summary,we established an innovative magnetic resonance imaging approach focused on the induction of reporter gene expression by a neuron-specific promoter.This imaging method can be used to noninvasively and sensitively detect neuronal differentiation in stem cells,which may be useful in stem cell-based therapies.展开更多
Objective: To establish a prediction model of activities of daily living (ADL) as an auxiliary evaluation scheme of hospitalized Parkinson’s disease patients. Methods: The hospitalization data of Parkinson’s disease...Objective: To establish a prediction model of activities of daily living (ADL) as an auxiliary evaluation scheme of hospitalized Parkinson’s disease patients. Methods: The hospitalization data of Parkinson’s disease in patients in the Department of Neurology, Affiliated Brain Hospital of Guangzhou Medical University were collected. Firstly the NSE values and each BI item were analyzed by Pearson correlation analysis. Secondly, The NSE, Age, Body weight and Education level related to the total score of Barthel index were obtained by correlation analysis. At last, a multiple linear regression model was established with NSE, Age, Body weight and Education level as independent variables and BI as dependent variables. Results: A total of 95 patients with PD were enrolled in this study, including 53 males (55.8%) and 42 females (44.2%). The effects of the four independent variables incorporated in the model on the total score of Barthel index were statistically significant, as well as the regression model (F = 9.531, P Conclusion: The prediction model established in this research can effectively predict the activities of daily living of Parkinson’s patients and can be used as an auxiliary evaluation scheme of the hospitalized PD patients.展开更多
Background Current diagnostic criteria for hypoxic–ischemic encephalopathy in the early hours lack objective measurement tools.Therefore,this systematic review aims to identify putative molecules that can be used in ...Background Current diagnostic criteria for hypoxic–ischemic encephalopathy in the early hours lack objective measurement tools.Therefore,this systematic review aims to identify putative molecules that can be used in diagnosis in daily clinical practice(PROSPERO ID:CRD42021272610).Data sources Searches were performed in PubMed,Web of Science,and Science Direct databases until November 2020.English original papers analyzing samples from newborns>36 weeks that met at least two American College of Obstetricians and Gynecologists diagnostic criteria and/or imaging evidence of cerebral damage were included.Bias was assessed by the Newcastle–Ottawa Scale.The search and data extraction were verified by two authors separately.Results From 373 papers,30 met the inclusion criteria.Data from samples collected in the first 72 hours were extracted,and increased serum levels of neuron-specific enolase and S100-calcium-binding protein-B were associated with a worse prognosis in newborns that suffered an episode of perinatal asphyxia.In addition,the levels of glial fibrillary acidic protein,ubiquitin carboxyl terminal hydrolase isozyme-L1,glutamic pyruvic transaminase-2,lactate,and glucose were elevated in newborns diagnosed with hypoxic–ischemic encephalopathy.Moreover,pathway analysis revealed insulin-like growth factor signaling and alanine,aspartate and glutamate metabolism to be involved in the early molecular response to insult.Conclusions Neuron-specific enolase and S100-calcium-binding protein-B are potential biomarkers,since they are correlated with an unfavorable outcome of hypoxic-ischemic encephalopathy newborns.However,more studies are required to determine the sensitivity and specificity of this approach to be validated for clinical practice.展开更多
Background:Interphase fluorescence in situ hybridization(FISH)of bone marrow cells has been confirmed to be a direct and valid method to assess the v-myc avian myelocytomatosis viral oncogene neuroblastoma derived hom...Background:Interphase fluorescence in situ hybridization(FISH)of bone marrow cells has been confirmed to be a direct and valid method to assess the v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog(MYCN)amplification in patients with bone marrow metastatic neuroblastoma.MYCN amplification alone,however,is insufficient for pretreatment risk stratification.Chromosome band 11q23 deletion has recently been included in the risk stratification of neuroblastoma.In the present study,we aimed to evaluate the biological characteristics and prog-nostic impact of 11q23 deletion and MYCN amplification in patients with bone marrow metastatic neuroblastoma.Methods:We analyzed the MYCN and 11q23 statuses of 101 patients with bone marrow metastatic neuroblastoma using interphase FISH of bone marrow cells.We specifically compared the biological characteristics and prognostic impact of both aberrations.Results:MYCN amplification and 11q23 deletion were seen in 12(11.9%)and 40(39.6%)patients.The two mark-ers were mutually exclusive.MYCN amplification occurred mainly in patients with high lactate dehydrogenase(LDH)and high neuron-specific enolase(NSE)levels(both P<0.001),and MYCN-amplified patients had more events(tumor relapse,progression,or death)than MYCN-normal patients(P=0.004).11q23 deletion was associated only with age(P=0.001).Patients with MYCN amplification had poorer outcomes than those with normal MYCN(3-year event-free survival[EFS]rate:8.3±8.0%vs.43.8±8.5%,P<0.001;3-year overall survival[OS]rate:10.4±9.7%vs.63.5%±5.7%,P<0.001).11q23 deletion reflected a poor prognosis only for patients with normal MYCN(3-year EFS rate:34.3±9.5%vs.53.4±10.3%,P=0.037;3-year OS rate:42.9±10.4%vs.75.9±6.1%,P=0.048).Those with both MYCN amplification and 11q23 deletion had the worst outcome(P<0.001).Conclusions:Chromosome band 11q23 deletion predicts poor prognosis only in bone marrow metastatic neuroblastoma patients without MYCN amplification.Combined assessment of the two markers was much superior to single-marker assessment in recognizing the patients at a high risk of disease progression.展开更多
Background:Patients with drug refractory temporal lobe epilepsy frequently accumulate cognitive impairment over time,suggesting loss of neurons induced by seizures.Our objective was to determine whether there is a tem...Background:Patients with drug refractory temporal lobe epilepsy frequently accumulate cognitive impairment over time,suggesting loss of neurons induced by seizures.Our objective was to determine whether there is a temporal association between changes in serum levels of neural injury markers and electroencephalographic(EEG)evidence of seizures and interictal spikes.Methods:We measured serum levels of neuron-specific enolase(NSE),a neuronal injury marker,relative to levels of S100β,a marker of glial injury,at 6 AM,9 AM,noon,3 PM,and 6 PM over the course of several days in 7 epilepsy patients undergoing continuous video-EEG monitoring and in 4 healthy controls.Results:All epilepsy patients exhibited significant deviations in NSE levels through time,and 4 of the epilepsy patients exhibited large sample entropy values and large signal variation metrics for NSE relative to S100β.Controls did not exhibit such changes.Correlation analysis revealed that NSE levels were significantly elevated after seizures.There was also a highly significant relationship between increased EEG spike frequency and an increase in serum NSE levels measured 24 h later.Conclusions:The detection of large but transient post-ictal increases in NSE suggests that even self-limited seizures may cause an injury to neurons that underlies cognitive decline in some patients.While this study used a small patient population,the pilot findings suggest that post-ictal assessment of serum NSE may serve as a biomarker for measuring the efficacy of future acute neuroprotective strategies in epilepsy patients.展开更多
Background:Blood-based biomarkers have proven to be a reliable measure of the severity and outcome of traumatic brain injury(TBI)in both murine models and patients.In particular,neuronspecific enolase(NSE),neurofilame...Background:Blood-based biomarkers have proven to be a reliable measure of the severity and outcome of traumatic brain injury(TBI)in both murine models and patients.In particular,neuronspecific enolase(NSE),neurofilament light(NFL)and S100 beta(S100B)have been investigated in the clinical setting post-injury.Ethanol intoxication(EI)remains a significant comorbidity in TBI,with 30–40%of patients having a positive blood alcohol concentration post-TBI.The effect of ethanol on blood-based biomarkers for the prognosis and diagnosis of TBI remains unclear.In this study,we investigated the effect of EI on NSE,NFL and S100B and their correlation with blood–brain barrier integrity in a murine model of TBI.Methods:We used ultra-sensitive single-molecule array technology and enzyme-linked immunosorbent assay methods to measure NFL,NSE,S100B and claudin-5 concentrations in plasma 3 hours post-TBI.Results:We showed that NFL,NSE and S100B were increased at 3 hours post-TBI.Interestingly,ethanol blood concentrations showed an inverse correlation with NSE but not with NFL or S100B.Claudin-5 levels were increased post-injury but no difference was detected compared to ethanol pretreatment.The increase in claudin-5 post-TBI was correlated with NFL but not with NSE or S100B.Conclusions:Ethanol induces an effect on biomarker release in the bloodstream that is different from TBI not influenced by alcohol.This could be the basis of investigations into humans.展开更多
基金Supported by Quanzhou Science and Technology Bureau,No.2018N053S.
文摘BACKGROUND Silicosis is a type of chronic pulmonary fibrosis caused by long-term inhalation of silica dust particles.There has been no ideal biomarker for the diagnosis and differential diagnosis of silicosis until now.Studies have found that elevated neuron-specific enolase(NSE)concentration in the serum of silicosis patients is helpful for diagnosis and severity assessment of the disease.However,the number of cases in these studies was not enough to arouse attention.AIM To investigate the clinical significance of serum NSE in the diagnosis and staging of silicosis.METHODS From January 2017 to June 2019,326 cases of silicosis confirmed in Quanzhou First Hospital Affiliated to Fujian Medical University were included in the silicosis group.A total of 328 healthy individuals or medical patients without silicosis were included in the control group.Serum NSE concentrations of all subjects were determined by electrochemical luminescence.RESULTS There were no significant differences in sex,age,smoking index and complications between the silicosis and control groups.The mean serum NSE concentration was 26.57±20.95 ng/mL in the silicosis group and 12.42±2.68 ng/mL in the control group.The difference between the two groups was significant(U=15187,P=0.000).Among the 326 patients with silicosis,103 had stage I silicosis,and the mean serum NSE concentration was 15.55±6.23 ng/mL.The mean serum NSE concentration was 21.85±12.05 ng/mL in 70 patients with stage II silicosis.The mean serum NSE concentration was 36.14±25.72 ng/mL in 153 patients with stage III silicosis.Kruskal-Wallis H test suggested that the difference in serum NSE concentration in silicosis patients in the three groups was significant(H=130.196,P=0.000).Receiver operating characteristic curve analysis indicated that the area under the curve was 0.858(95%confidence interval:0.828-0.888;P=0.000).When the NSE concentration was 15.82 ng/mL,the Jorden index was the largest,the sensitivity was 72%,and the specificity was 90%.CONCLUSION Serum NSE concentration may be a promising biomarker for the diagnosis and assessment of severity of silicosis.
基金This work was supported by the Guangdong Natural Science Foundation(grantnumber S2013010014007,2014A030313070)Guangdong Province Science&Technology Project Plan&Social Development Foundation(grant number 2010A030400006).
文摘Lung cancer is a leading cause of cancer-related deaths worldwide.It mainly consists of 2 histological types:small cell lung cancer(SCLC)and non-small cell lung cancer(NSCLC,including squamous cell carcinoma and adenocarcinoma).The present study aimed to assess the role of serum progastrin-releasing peptide(ProGRP),neuron-specific enolase(NSE),and carcinoembryonic antigen(CEA)and their combinations in the histological diagnosis of lung cancer(specially SCLC),which is of great importance for the initiation of treatment and prognostic implications.Serum ProGRP,NSE,and CEA were determined by the electrochemiluminescence immunoassay(ECLIA)in 66 patients with SCLC,73 with adenocarcinoma,44 with squamous cell carcinoma,45 with non-malignant pulmonary diseases,and 50 healthy controls.Receiver operating characteristic curves were constructed to compare the predictive ability of each biochemical marker and their combined detection models to discriminate among the patients with lung cancers of different histological groups,benign pulmonary diseases and healthy individuals.In the ECLIA detection system,ProGRP showed the sensitivity and specificity for SCLC diagnosis were 71.2%and 91.1%to 93.2%,respectively.Among the markers,the largest area under the ROCs was for ProGRP in discriminating SCLC from benign pulmonary diseases,squamous cell carcinoma and adenocarcinoma(0.815,0.859,and 0.835,respectively),which indicated that ProGRP was the most efficient marker for identifying SCLC.Besides,ProGRP and NSE exhibited almost equivalent diagnostic performance in discriminating SCLC from benign diseases.As for squamous cell carcinoma,we recommended proGRP,while for adenocarcinoma,the combination of proGRP and CEA was preferred.Remarkably,when ProGRP≤66pg/mL,CEA was of great value in diagnosing SCLC and adenocarcinoma.If CEA≤5ng/mL,the patient was at higher risk for SCLC,whereas the patient was more likely to be diagnosed with adenocarcinoma.Our study provided promising information about the diagnostic values of serum ProGRP,NSE,CEA in distinguishing SCLC from benign pulmonary diseases and NSCLC,which was of crucial clinical significance in the early diagnosis and therapy of SCLC.
基金supported by the National Natural Science Foundation of China,No.81771892(to JHC).
文摘The neuronal differentiation of mesenchymal stem cells offers a new strategy for the treatment of neurological disorders.Thus,there is a need to identify a noninvasive and sensitive in vivo imaging approach for real-time monitoring of transplanted stem cells.Our previous study confirmed that magnetic resonance imaging,with a focus on the ferritin heavy chain 1 reporter gene,could track the proliferation and differentiation of bone marrow mesenchymal stem cells that had been transduced with lentivirus carrying the ferritin heavy chain 1 reporter gene.However,we could not determine whether or when bone marrow mesenchymal stem cells had undergone neuronal differentiation based on changes in the magnetic resonance imaging signal.To solve this problem,we identified a neuron-specific enolase that can be differentially expressed before and after neuronal differentiation in stem cells.In this study,we successfully constructed a lentivirus carrying the neuron-specific enolase promoter and expressing the ferritin heavy chain 1 reporter gene;we used this lentivirus to transduce bone marrow mesenchymal stem cells.Cellular and animal studies showed that the neuron-specific enolase promoter effectively drove the expression of ferritin heavy chain 1 after neuronal differentiation of bone marrow mesenchymal stem cells;this led to intracellular accumulation of iron and corresponding changes in the magnetic resonance imaging signal.In summary,we established an innovative magnetic resonance imaging approach focused on the induction of reporter gene expression by a neuron-specific promoter.This imaging method can be used to noninvasively and sensitively detect neuronal differentiation in stem cells,which may be useful in stem cell-based therapies.
文摘Objective: To establish a prediction model of activities of daily living (ADL) as an auxiliary evaluation scheme of hospitalized Parkinson’s disease patients. Methods: The hospitalization data of Parkinson’s disease in patients in the Department of Neurology, Affiliated Brain Hospital of Guangzhou Medical University were collected. Firstly the NSE values and each BI item were analyzed by Pearson correlation analysis. Secondly, The NSE, Age, Body weight and Education level related to the total score of Barthel index were obtained by correlation analysis. At last, a multiple linear regression model was established with NSE, Age, Body weight and Education level as independent variables and BI as dependent variables. Results: A total of 95 patients with PD were enrolled in this study, including 53 males (55.8%) and 42 females (44.2%). The effects of the four independent variables incorporated in the model on the total score of Barthel index were statistically significant, as well as the regression model (F = 9.531, P Conclusion: The prediction model established in this research can effectively predict the activities of daily living of Parkinson’s patients and can be used as an auxiliary evaluation scheme of the hospitalized PD patients.
基金funding provided by FCT|FCCN(b-on)financed by the European Regional Development Fund(ERDF),through the COMPETE 2020—Operational Programme for Competitiveness and Internationalization and Portuguese national funds via FCT-Fundcao para a Ciencia e a Tecnologia,under projects POCI-01-0145-FEDER-029311,POCI-01-0247-FEDER-045311,UIDB/04539/2020 and UIDP/04539/2020individual Ph.D.fellowships PD/BD/135178/2017(Margarida Coelho),SFRH/BD/143442/2019(Ines Caramelo),and 2020.07749.BD(Miguel Rosado).
文摘Background Current diagnostic criteria for hypoxic–ischemic encephalopathy in the early hours lack objective measurement tools.Therefore,this systematic review aims to identify putative molecules that can be used in diagnosis in daily clinical practice(PROSPERO ID:CRD42021272610).Data sources Searches were performed in PubMed,Web of Science,and Science Direct databases until November 2020.English original papers analyzing samples from newborns>36 weeks that met at least two American College of Obstetricians and Gynecologists diagnostic criteria and/or imaging evidence of cerebral damage were included.Bias was assessed by the Newcastle–Ottawa Scale.The search and data extraction were verified by two authors separately.Results From 373 papers,30 met the inclusion criteria.Data from samples collected in the first 72 hours were extracted,and increased serum levels of neuron-specific enolase and S100-calcium-binding protein-B were associated with a worse prognosis in newborns that suffered an episode of perinatal asphyxia.In addition,the levels of glial fibrillary acidic protein,ubiquitin carboxyl terminal hydrolase isozyme-L1,glutamic pyruvic transaminase-2,lactate,and glucose were elevated in newborns diagnosed with hypoxic–ischemic encephalopathy.Moreover,pathway analysis revealed insulin-like growth factor signaling and alanine,aspartate and glutamate metabolism to be involved in the early molecular response to insult.Conclusions Neuron-specific enolase and S100-calcium-binding protein-B are potential biomarkers,since they are correlated with an unfavorable outcome of hypoxic-ischemic encephalopathy newborns.However,more studies are required to determine the sensitivity and specificity of this approach to be validated for clinical practice.
基金This work was supported by Capital’s Funds for Health Improvement and Research(2018-2-2095).
文摘Background:Interphase fluorescence in situ hybridization(FISH)of bone marrow cells has been confirmed to be a direct and valid method to assess the v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog(MYCN)amplification in patients with bone marrow metastatic neuroblastoma.MYCN amplification alone,however,is insufficient for pretreatment risk stratification.Chromosome band 11q23 deletion has recently been included in the risk stratification of neuroblastoma.In the present study,we aimed to evaluate the biological characteristics and prog-nostic impact of 11q23 deletion and MYCN amplification in patients with bone marrow metastatic neuroblastoma.Methods:We analyzed the MYCN and 11q23 statuses of 101 patients with bone marrow metastatic neuroblastoma using interphase FISH of bone marrow cells.We specifically compared the biological characteristics and prognostic impact of both aberrations.Results:MYCN amplification and 11q23 deletion were seen in 12(11.9%)and 40(39.6%)patients.The two mark-ers were mutually exclusive.MYCN amplification occurred mainly in patients with high lactate dehydrogenase(LDH)and high neuron-specific enolase(NSE)levels(both P<0.001),and MYCN-amplified patients had more events(tumor relapse,progression,or death)than MYCN-normal patients(P=0.004).11q23 deletion was associated only with age(P=0.001).Patients with MYCN amplification had poorer outcomes than those with normal MYCN(3-year event-free survival[EFS]rate:8.3±8.0%vs.43.8±8.5%,P<0.001;3-year overall survival[OS]rate:10.4±9.7%vs.63.5%±5.7%,P<0.001).11q23 deletion reflected a poor prognosis only for patients with normal MYCN(3-year EFS rate:34.3±9.5%vs.53.4±10.3%,P=0.037;3-year OS rate:42.9±10.4%vs.75.9±6.1%,P=0.048).Those with both MYCN amplification and 11q23 deletion had the worst outcome(P<0.001).Conclusions:Chromosome band 11q23 deletion predicts poor prognosis only in bone marrow metastatic neuroblastoma patients without MYCN amplification.Combined assessment of the two markers was much superior to single-marker assessment in recognizing the patients at a high risk of disease progression.
基金NS064571 from the NIH/NINDS(CLH),grant UL1TR000135 from the NIH/NCATSthe Mayo Clinic Center for MS and Autoimmune Neurology,and a generous gift from the Albert and Mary Jane Staton Family.
文摘Background:Patients with drug refractory temporal lobe epilepsy frequently accumulate cognitive impairment over time,suggesting loss of neurons induced by seizures.Our objective was to determine whether there is a temporal association between changes in serum levels of neural injury markers and electroencephalographic(EEG)evidence of seizures and interictal spikes.Methods:We measured serum levels of neuron-specific enolase(NSE),a neuronal injury marker,relative to levels of S100β,a marker of glial injury,at 6 AM,9 AM,noon,3 PM,and 6 PM over the course of several days in 7 epilepsy patients undergoing continuous video-EEG monitoring and in 4 healthy controls.Results:All epilepsy patients exhibited significant deviations in NSE levels through time,and 4 of the epilepsy patients exhibited large sample entropy values and large signal variation metrics for NSE relative to S100β.Controls did not exhibit such changes.Correlation analysis revealed that NSE levels were significantly elevated after seizures.There was also a highly significant relationship between increased EEG spike frequency and an increase in serum NSE levels measured 24 h later.Conclusions:The detection of large but transient post-ictal increases in NSE suggests that even self-limited seizures may cause an injury to neurons that underlies cognitive decline in some patients.While this study used a small patient population,the pilot findings suggest that post-ictal assessment of serum NSE may serve as a biomarker for measuring the efficacy of future acute neuroprotective strategies in epilepsy patients.
文摘Background:Blood-based biomarkers have proven to be a reliable measure of the severity and outcome of traumatic brain injury(TBI)in both murine models and patients.In particular,neuronspecific enolase(NSE),neurofilament light(NFL)and S100 beta(S100B)have been investigated in the clinical setting post-injury.Ethanol intoxication(EI)remains a significant comorbidity in TBI,with 30–40%of patients having a positive blood alcohol concentration post-TBI.The effect of ethanol on blood-based biomarkers for the prognosis and diagnosis of TBI remains unclear.In this study,we investigated the effect of EI on NSE,NFL and S100B and their correlation with blood–brain barrier integrity in a murine model of TBI.Methods:We used ultra-sensitive single-molecule array technology and enzyme-linked immunosorbent assay methods to measure NFL,NSE,S100B and claudin-5 concentrations in plasma 3 hours post-TBI.Results:We showed that NFL,NSE and S100B were increased at 3 hours post-TBI.Interestingly,ethanol blood concentrations showed an inverse correlation with NSE but not with NFL or S100B.Claudin-5 levels were increased post-injury but no difference was detected compared to ethanol pretreatment.The increase in claudin-5 post-TBI was correlated with NFL but not with NSE or S100B.Conclusions:Ethanol induces an effect on biomarker release in the bloodstream that is different from TBI not influenced by alcohol.This could be the basis of investigations into humans.
