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Hong RH, Zhu J, Li ZZ, Yuan J, Zhao P, Ding J, Fan QL, Yang J, Liu BG, Cai J, Zhu DS, Guan YT. Red blood cell distribution width is associated with neuronal damage in acute ischemic stroke. Aging (Albany NY) 2020; 12:9855-9867. [PMID: 32445553 PMCID: PMC7288978 DOI: 10.18632/aging.103250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022]
Abstract
Elevated red blood cell distribution width (RDW) has been found to be associated with the occurrence of ischemic stroke. However, there is no defined relationship between RDW and neuronal damage in acute ischemic stroke (AIS). This study was designed to determine the relationship between RDW and neuronal damage in AIS patients. A total of 442 consecutive AIS patients from January 2018 to June 2019 were evaluated for neuronal damage, which was estimated by serum neuron-specific enolase (NSE) levels. Red blood cell distribution width-standard deviation (RDW-SD), a parameter that reflects the heterogeneity of red blood cell volume, was also assessed. We evaluated the association between the RDW-SD and serum NSE level through multivariate-adjusted linear regression analysis. Both the serum NSE level and the incidence of high NSE increased according to the increased RDW-SD tertile in AIS patients (p<0.01). There was a positive correlation between RDW-SD and serum NSE levels (r=0.275, 95% CI: 0.187-0.359, p<0.001). The beta coefficients (95% CI) between RDW-SD and serum NSE levels were 0.32 (0.21-0.42, p<0.001) and 0.26 (0.15-0.38, p<0.001), respectively, in AIS patients before and after adjusting for potential confounders. In conclusion, we found a significant positive association between RDW-SD and neuronal damage in AIS patients.
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Luo H, Shen K, Li B, Li R, Wang Z, Xie Z. Clinical significance and diagnostic value of serum NSE, CEA, CA19-9, CA125 and CA242 levels in colorectal cancer. Oncol Lett 2020; 20:742-750. [PMID: 32566000 PMCID: PMC7286116 DOI: 10.3892/ol.2020.11633] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 01/17/2020] [Indexed: 01/23/2023] Open
Abstract
The present study investigated the value of combinations of five specific tumor biomarkers for the diagnosis of colorectal cancer (CRC): Neuron-specific enolase (NSE), carcinoembryonic antigen (CEA), cancer antigen (CA)19-9, CA125 and CA242. Associations between these markers and clinicopathological characteristics (including the Tumor-Node-Metastasis stage) were also assessed. Serum levels of the 5 markers were compared between 358 patients with CRC and 298 healthy individuals (CRC and control group, respectively). The NSE concentration of the CRC group was significantly higher compared with the control. Furthermore, patients at clinical stage III+IV exhibited significantly higher NSE levels compared with those at stage I+II. The serum NSE level of N+ patients was significantly higher compared with the N− group, and the NSE level of M1 patients was significantly compared with the M0 group. NSE level was also significantly associated with tumor stage, lymph node metastasis, distant metastasis and hematochezia. The area under the receiver operating characteristic curve (AUC) for NSE in CRC was 0.766, which was significantly higher than that of the other four markers, which ranged from 0.560–0.682. The AUC of NSE, CEA, CA19-9, CA125, CA242 combined was significantly higher compared with any of the markers individually (range, 0.796–0.858). Therefore, serum NSE may be a good clinical tool for the auxiliary diagnosis of colorectal cancer. Besides, the combination of NSE, CEA, CA19-9, CA125 and CA242 was significantly more sensitive compared with NSE alone. Thus, the combined detection of the 5 tumor markers may be more useful for the diagnosis of CRC.
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Szarvas T, Csizmarik A, Fazekas T, Hüttl A, Nyirády P, Hadaschik B, Grünwald V, Püllen L, Jurányi Z, Kocsis Z, Shariat SF, Sevcenco S, Maj-Hes A, Kramer G. Comprehensive analysis of serum chromogranin A and neuron-specific enolase levels in localized and castration-resistant prostate cancer. BJU Int 2020; 127:44-55. [PMID: 32314509 DOI: 10.1111/bju.15086] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2020] [Indexed: 12/09/2022]
Abstract
OBJECTIVES To assess chromogranin A (CGA) and neuron-specific enolase (NSE) levels and changes in these at different stages of prostatic adenocarcinoma (PCA). METHODS Overall, 1095 serum samples from 395 patients, divided into three treatment groups, were analysed; the radical prostatectomy (RP) cohort (n = 157) included patients with clinically localized PCA, while the docetaxel (DOC) and the abiraterone (ABI)/enzalutamide (ENZA) cohorts included 95 and 143 patients, respectively, with metastatic castration-resistant prostate cancer. CGA, NSE and total PSA levels were measured using the KRYPTOR method. RESULTS Baseline CGA and NSE levels were higher in castration-resistant (DOC and ABI/ENZA cohorts) than in hormone-naïve, clinically localized PCA (P < 0.001). High baseline CGA levels were independently associated with poor overall survival in both the DOC and the ABI/ENZA cohorts, with a stronger association in the ABI/ENZA cohort. In the ABI/ENZA cohort, a > 50% CGA increase at 3 months was associated with poor survival, especially in patients with high baseline CGA levels. CONCLUSIONS The two- to threefold higher neuroendocrine marker levels in castration-resistant compared to hormone-naïve PCA support the presence of neuroendocrine transdifferentiation under androgen deprivation therapy. Our results showed patients with high baseline CGA levels who experienced a further CGA increase during ABI and ENZA treatment had the poorest prognosis. Serum CGA levels could help in tailoring and monitoring therapy in advanced PCA.
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Luo H, Shen K, Sun H, Li R, Wang Z, Xie Z. Clinical significance of serum neuron-specific enolase in gastric adenocarcinoma. Medicine (Baltimore) 2020; 99:e19829. [PMID: 32312004 PMCID: PMC7220193 DOI: 10.1097/md.0000000000019829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
As a biomarker, neuron-specific enolase (NSE) has been widely recognized in the diagnosis of benign diseases and malignant tumors. This study aimed to investigate the potential diagnostic value of NSE in patients with gastric adenocarcinoma.Serum levels of the NSE were compared between 219 patients with gastric adenocarcinoma and 298 healthy individuals, NSE and clinicopathological parameters were analyzed. Meanwhile, to evaluate the diagnostic capability of NSE, the receiver operating characteristic (ROC), and area under curve (AUC) was calculated.In the present study, the median serum NSE level of the patient group was 20.770 ng/mL, which was higher than that of the control group 15.625 ng/mL (P < .05). Serum NSE level in patients group compared with healthy control was statistically significant (P < .05). Serum NSE level was associated with pathological tumor-node-metastasis (pTNM) staging, lymph node metastasis, and distant metastasis in patients with gastric adenocarcinoma. Besides, the AUC of NSE in gastric adenocarcinoma was 0.742, which was higher than those of the other 3 markers (0.573-0.644). Besides, the AUC of the combined 4 markers was higher than any individual marker (0.778).Serum NSE detecting may have good value for diagnosis of gastric adenocarcinoma. Besides, the combination of NSE, CEA, CA19-9, and CA242 performed even better than any single marker. Thus, the combined detection of the 4 tumor markers may be more useful for the diagnosis of gastric adenocarcinoma.
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Zhang Y, Huang J, Zou Q, Che J, Yang K, Fan Q, Qian D, Wu J, Bao E, Song L, Zhang F. Methylated PTGER4 is better than CA125, CEA, Cyfra211 and NSE as a therapeutic response assessment marker in stage IV lung cancer. Oncol Lett 2020; 19:3229-3238. [PMID: 32256818 PMCID: PMC7074558 DOI: 10.3892/ol.2020.11434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022] Open
Abstract
Real-time assessment of therapeutic response in patients with advanced lung cancer presents a major challenge throughout the treatment process. Currently, computed tomography imaging is often used; however, it is radiation-based and hysteretic and is not suitable for repeated use as a real-time assessment. Blood biomarkers represent a novel solution for assessing therapeutic response in patients with advanced lung cancer. In the present study, the efficacy of a methylation marker [methylated prostaglandin E receptor 4 (mPTGER4)] and four protein markers [carcinoma antigen 125 (CA125), carcinoembryonic antigen (CEA), cytokeratin 19-fragments (cyfra21-1) and neuron-specific enolase (NSE)] were simultaneously evaluated to determine their potential in facilitating therapeutic response monitoring as well as their prognostic values in patients with stage IV lung cancer. The results indicated that, following treatment, the blood levels of methylated PTGER4 and NSE had significantly decreased, and mPRGER4, CA125, CEA and NSE exhibited a significant decrease in percentage level. Since mPTGER4 exhibited a higher rate of positive detection prior to therapy, and a greater response of sensitivity to therapy compared to the protein markers, it may represent an improved marker for the monitoring of therapeutic response. The efficacy of the markers in predicting the overall survival (OS) rate of patients with stage IV lung cancer was also assessed. Results from the follow-up of patients (up to 891 days) revealed that the blood levels of mPTGER4, CA125 and NSE before treatment were able to predict overall survival (OS) rate. Additionally, the percentage change in expression levels of CA125, CEA and NSE was also able to predict the OS rate. In conclusion, the present results indicate that mPTGER4 represents an improved biomarker for monitoring therapeutic efficacy compared with CA125, CEA, Cyfra21-1 and NSE. In predicting the long-term survival of patients with stage IV lung cancer; however, the pre-treatment levels of mPTGER4, CA125 and NSE and the percentage changes of CA125, CEA and NSE may be used as the markers.
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Luo H, Shen K, Sun H, Li R, Wang Z, Xie Z. Correlation study between serum neuro-specific enolase and gastric and colorectal cancers. Medicine (Baltimore) 2020; 99:e19796. [PMID: 32311993 PMCID: PMC7440092 DOI: 10.1097/md.0000000000019796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study investigated the diagnostic value of preoperative serum neuro-specific enolase (NSE) in gastric cancer (GC) and colorectal cancer (CRC), and the diagnostic viability of combined serum NSE, carcinoembryonic antigen (CEA), cancer antigen (CA)19-9, and CA242.Patients with GC and CRC, and a healthy control group (n = 666 and 266, respectively) were compared with regard to NSE, CEA, CA19-9, and CA242 serum levels. NSE was analyzed for associations with clinicopathological parameters. To estimate the diagnostic potential of NSE, a receiver operating characteristic curve was constructed and the area under the curve (AUCs) was calculated for different patient subgroups.The median serum NSE level of the tumor group (20.925 ng/mL) was significantly higher than that of the control (15.190 ng/mL). Serum NSE was associated with pathological tumor-node-metastasis staging, lymph node metastasis, distant metastasis, vascular invasion, and nerve infiltration. The area under the receiver operating characteristic curve (AUC) for NSE in GC and CRC (0.769) was higher than for the other 3 markers (0.571-0.680). The AUC of the combined markers was higher than for any of the markers individually (0.778-0.810).The AUC for NSE alone suggests it may be an independent tumor marker, and useful for diagnosis of GC and CRC. However, the AUC for combined NSE, CEA, CA19-9, and CA242 was higher and thus potentially more diagnostic value.
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Son SH, Lee IH, Park JS, Yoo IS, Kim SW, Lee JW, Ryu S, You Y, Min JH, Cho YC, Jeong WJ, Oh SK, Cho SU, Ahn HJ, Kang C, Lee DH, Lee BK, Youn CS. Does Combining Biomarkers and Brain Images Provide Improved Prognostic Predictive Performance for Out-Of-Hospital Cardiac Arrest Survivors before Target Temperature Management? J Clin Med 2020; 9:jcm9030744. [PMID: 32164225 PMCID: PMC7141362 DOI: 10.3390/jcm9030744] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 02/26/2020] [Accepted: 03/06/2020] [Indexed: 12/18/2022] Open
Abstract
We examined whether combining biomarkers measurements and brain images early after the return of spontaneous circulation improves prognostic performance compared with the use of either biomarkers or brain images for patients with cardiac arrest following target temperature management (TTM). This retrospective observational study involved comatose out-of-hospital cardiac arrest survivors. We analyzed neuron-specific enolase levels in serum (NSE) or cerebrospinal fluid (CSF), grey-to-white matter ratio by brain computed tomography, presence of high signal intensity (HSI) in diffusion-weighted imaging (DWI), and voxel-based apparent diffusion coefficient (ADC). Of the 58 patients, 33 (56.9%) had poor neurologic outcomes. CSF NSE levels showed better prognostic performance (area under the curve (AUC) 0.873, 95% confidence interval (CI) 0.749–0.950) than serum NSE levels (AUC 0.792, 95% CI 0.644–0.888). HSI in DWI showed the best prognostic performance (AUC 0.833, 95% CI 0.711–0.919). Combining CSF NSE levels and HSI in DWI had better prognostic performance (AUC 0.925, 95% CI 0.813–0.981) than each individual method, followed by the combination of serum NSE levels and HSI on DWI and that of CSF NSE levels and the percentage of voxels of ADC (AUC 0.901, 95% CI 0.792–0.965; AUC 0.849, 95% CI 0.717–0.935, respectively). Combining CSF/serum NSE levels and HSI in DWI before TTM improved the prognostic performance compared to either each individual method or other combinations.
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Ye L, Zhou X, Lu J, Wang Y, Xie X, Zhang J. Combining serum calcitonin, carcinoembryonic antigen, and neuron-specific enolase to predict lateral lymph node metastasis in medullary thyroid carcinoma. J Clin Lab Anal 2020; 34:e23278. [PMID: 32141647 PMCID: PMC7370728 DOI: 10.1002/jcla.23278] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 12/15/2022] Open
Abstract
Background This study aimed to investigate the clinical application of combined detection of serum calcitonin (Ctn), carcinoembryonic antigen (CEA), and neuron‐specific enolase (NSE) in predicting lateral lymph node metastasis (LLNM) in medullary thyroid carcinoma (MTC). Methods Seventy‐four consecutive patients with MTC were enrolled. The relationship between serum Ctn, CEA, and NSE and LLNM was retrospectively analyzed by univariate analysis and logistic regression analysis. Furthermore, the clinical application of serum Ctn, CEA, and NSE combined detection in prediction of LLNM in MTC was also evaluated. Results The rate of LLNM in this study was 48.64% (36/74).The expression levels of serum Ctn, CEA, and NSE in MTC with LLNM were significantly higher than those without LLNM (all P < .01). The area under the curve (AUC) predicted by serum Ctn, CEA, and NSE for LLNM in MTC patients was 0.867, 0.831, and 0.726, respectively, and the AUC of serum Ctn, CEA, and NSE combined detection was up to 0.890, higher than using a single biomarker. The sensitivity and specificity of serum Ctn, CEA, and NSE combined detection in prediction of LLNM were 88.89% and 81.57%, respectively. Conclusions The concentrations of serum Ctn, CEA, and NSE are closely related to LLNM in MTC, and the combined detection of all three biomarkers has a higher clinical value in the evaluation of MTC patients with LLNM. With more perspective study in the future, it would be an indicator of influencing personalized surgical strategy for different MTC patients.
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Arca G, Arnaez J, Agut T, Núñez C, Stephan-Otto C, Valls A, García-Alix A. Neuron-specific enolase is correlated with lesion topology, relative infarct volume and outcome of symptomatic NAIS. Arch Dis Child Fetal Neonatal Ed 2020; 105:132-137. [PMID: 31201253 DOI: 10.1136/archdischild-2018-316680] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 03/27/2019] [Accepted: 05/12/2019] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To correlate neuron-specific enolase (NSE) levels in cerebrospinal fluid (CSF) in neonate infants with symptomatic neonatal arterial ischaemic stroke (NAIS) with the arterial distribution of infarct, infarct volume and outcome. DESIGN Prospective observational multicentre cohort. SETTING Three paediatric university hospitals in Spain. SUBJECTS Thirty-eight neonates with more than 35 weeks' gestational age between 2006 and 2016 were studied. They were diagnosed with NAIS by MRI. They underwent a lumbar puncture to measure CSF-NSE concentrations within 96 hours after the onset of symptoms. Sixty-seven neonates admitted with suspected infections served as controls. We used a classification based on the arterial distribution, and the lesions were segmented with ITK-Snap software to determine their volume. Neurodevelopment was assessed at 24 months using the Bayley-III, Gross Motor Function Classification System and Bimanual Fine Motor Function. RESULTS CSF-NSE levels were higher in patients with symptomatic NAIS when compared with controls. Neonates with multifocal NAIS and with NAIS located in middle cerebral artery (MCA)-M1 arterial territory showed higher CSF-NSE levels when compared with cases with MCA-M2-M3-M4 territories (p<0.001). A significant correlation was found between CSF-NSE and relative infarction volume (rs=0.597; p<0.001). CSF-NSE values were higher in those infants with symptomatic NAIS with adverse outcome compared with infants with good development (p=0.020). Infants with CSF-NSE values above 55 ng/mL had an OR of adverse outcome of 6.48 (95% CI 1.48 to 28.33). CONCLUSIONS CSF-NSE is a potential early prognostic biomarker after an NAIS due to the relation between volume, topology and neurodevelopment at 2 years of age.
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Mozafari J, Motamed H, Hanafi MG, Fatehifar B. The Diagnostic Value of Neuron-Specific Enolase in Children with Mild Blunt Trauma Requiring Cranial CT Scan. Open Access Emerg Med 2020; 12:1-5. [PMID: 32021497 PMCID: PMC6970105 DOI: 10.2147/oaem.s223179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/03/2020] [Indexed: 11/24/2022] Open
Abstract
Background The present study was conducted to investigate the relationship between serum levels of enolase and pathological findings obtained from CT scans of the brain in children with mild blunt brain trauma and help with a more accurate diagnosis of brain injuries. Methods The present observational study was conducted on children presenting with head traumas to the emergency department (ED) of Golestan Hospital in Ahvaz, Iran in 2016. A venous blood sample was immediately taken by the ward nurse from all the eligible patients within 6 hrs of the incident after obtaining their information, performing initial examinations and their initial stabilization. Laboratory serum levels and the corresponding interpretations of CT scans of the brain were collected, recorded and then evaluated and analyzed. Results A total of 62 children with mild blunt brain trauma were included in the study. A significant difference was observed between the positive CT scan group (2.7±9.74 µg/L) and the negative group (4.23±1.33 µg/L) in terms of serum levels of enolase (P<0.0001). The area under the receiver operating characteristic (ROC) curve was 0.992 for serum levels of enolase in diagnosing brain lesions caused by mild head traumas. Moreover, with a cut-off point of 6.97 µg/L, brain lesions could be detected with a sensitivity of 93.55% and a specificity of 100%. Conclusion Serum levels of enolase were found to be higher in patients with brain injuries. This highly accurate diagnostic biomarker can be recommended for estimating the presence of brain lesions associated with mild head traumas in infants.
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Prognostic Abilities of Serial Neuron-Specific Enolase and Lactate and their Combination in Cardiac Arrest Survivors During Targeted Temperature Management. J Clin Med 2020; 9:jcm9010159. [PMID: 31936049 PMCID: PMC7019578 DOI: 10.3390/jcm9010159] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/27/2019] [Accepted: 01/05/2020] [Indexed: 12/26/2022] Open
Abstract
This study aimed to determine the prognostic ability of serial neuron-specific enolase (NSE) and lactate in cardiac arrest survivors treated with targeted temperature management (TTM) and to investigate whether a combination of NSE and lactate could increase prognostic information. This observational, retrospective, cohort study was conducted between January 2013 and December 2018; data were extracted from an out-of-hospital cardiac arrest registry. We collected serial serum NSE and lactate levels during TTM. The primary endpoint was poor neurological outcome at 28 days from cardiac arrest. Of all 160 included patients, 98 (61.3%) had poor neurological outcomes. Areas under the curves (AUCs) for NSE were 0.797, 0.871, and 0.843 at 24, 48, and 72 h, respectively (all p < 0.05). AUCs for lactate were 0.669, 0.578, 0.634, and 0.620 at 0, 24, 48, and 72 h, respectively (all p < 0.05). Although the combination of initial lactate and NSE at 48 h yielded the highest discovered AUC (0.877) it was not statistically different from that for the 48 h NSE alone (p = 0.692). During the TTM, NSE at 48 h from cardiac arrest was the most robust prognostic marker in comatose cardiac arrest survivors. However, a combination of the 48 h NSE with lactate did not increase the prognostic information.
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Yu ZW, Liu R, Li X, Wang Y, Fu YH, Li HY, Yuan Y, Gao XY. High Serum Neuron-Specific Enolase Level Is Associated with Mild Cognitive Impairment in Patients with Diabetic Retinopathy. Diabetes Metab Syndr Obes 2020; 13:1359-1365. [PMID: 32425568 PMCID: PMC7188072 DOI: 10.2147/dmso.s249126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Diabetic retinopathy (DR) can increase the risk of mild cognitive impairment (MCI), which has been confirmed by previous researches. With the frequent occurrence of MCI in patients with DR, the early detection of MCI has become a research hot-spot. The aim of this study was to investigate the relationship between neuron-specific enolase (NSE) and MCI in patients with DR. PATIENTS AND METHODS A total of 124 patients with DR, including 56 MCI patients and 68 normal cognition patients, were recruited in this cross-sectional study. The demographic and clinical data of patients were collected through questionnaires. Serum NSE was measured using electrochemiluminescence immunoassay. The Minimum Mental State Examination (MMSE) scale was used to evaluate the cognitive function of the participants. RESULTS Compared with the normal cognition group, serum NSE levels and HbA1c levels in the MCI group were higher, while MMSE scores and educational level were lower (P<0.05). Serum NSE levels were significantly negatively correlated with MMSE total score, attention and calculation score, and language score (P<0.05). After adjusting for confounding factors, serum NSE still increased the MCI risk in DR patients (OR:1.606, 95CI%:1.264-2.041, P<0.001). The areas under the receiver operating characteristics (ROC) curves (AUC) of the crude model and the adjusted model were 0.75 and 0.73, respectively. CONCLUSION A high serum NSE level is an independent risk factor for MCI in DR patients. In addition, serum NSE is expected to be a potential biomarker in DR patients with MCI.
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Liu Y, Tang Y, Li C, Tao H, Yang X, Zhang X, Wang X. Altered Expression of Glucocorticoid Receptor and Neuron-Specific Enolase mRNA in Peripheral Blood in First-Episode Schizophrenia and Chronic Schizophrenia. Front Psychiatry 2020; 11:760. [PMID: 32903317 PMCID: PMC7435060 DOI: 10.3389/fpsyt.2020.00760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/17/2020] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION It is well-known that altered hypothalamus-pituitary-adrenal (HPA) axis process has an important role in the neurodegenerative process in schizophrenia (SZ). However, this neurodegenerative mechanism has not been clarified in SZ. Therefore, the main purpose of this study was to determine HPA axis damage in the first-episode, unmedicated schizophrenia (FES) patients and chronic schizophrenia (CSZ) patients in comparison with healthy controls (HC) by means of quantitative analysis of the peripheral blood mRNA expression of glucocorticoid receptor (GR), GR transcripts containing exons 1B (GR-1B), and neuron specific enolase (NSE) genes and serum cortisol and NSE, a specific serum marker for neuronal damage. METHODS In the present study, 43 FES patients, 39 CSZ, and 47 HC were included. The peripheral blood mRNA expressions for GR, GR-1B, and NSE genes were determined by real-time quantitative polymerase chain reaction (RT-qPCR). Serum cortisol and NSE were analyzed by electrochemiluminescence immunoassay technique. RESULTS Levels of GR mRNA were significantly lower in FES and CSZ than that in HC. The expression of GR-1B mRNA was significantly decreased in CSZ when compared with that in FES. Levels of NSE mRNA were significantly lower in CSZ than that in FES patients or HC patients. CSZ patients showed significantly lower cortisol concentrations than FES and HC patients. FES patients showed significantly higher NSE concentrations than CSZ and HC. CONCLUSION Our findings support that there is disrupted HPA axis system in the SZ and suggest that CSZ patients suffer a greater HPA axis damage than FES patients. Our research implicated underlying GR mRNA dysregulation in SZ and the potential importance of the functional GR-1B transcription in CSZ.
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Tan Q, Huang Q, Ma G, Lv Z, Mei P, Mao K, Wu F, Jin Y. Relationship between serum tumor markers and Anaplastic Lymphoma Kinase mutations in stage IV lung adenocarcinoma in Hubei province, Central China. J Clin Lab Anal 2019; 34:e23027. [PMID: 31489711 PMCID: PMC6977306 DOI: 10.1002/jcla.23027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/29/2019] [Accepted: 08/12/2019] [Indexed: 12/12/2022] Open
Abstract
Objective The aim of this study was to explore the predictive value of carcinoembryonic antigen (CEA), squamous cell carcinoma antigen (SCCAg), and neuron‐specific enolase (NSE) in the prediction of anaplastic lymphoma kinase (ALK) mutations in advance stage non‐small cell lung cancer (NSCLC). Subjects and Methods A total of 482 cases with untreated lung adenocarcinoma were retrospectively reviewed. Finally, 72 patients with stage IV were enrolled because of intact data of the detection of ALK rearrangement and serum tumor markers, as well they have not received any previous anticancer therapy. We used the one‐way ANOVA analysis, correlation analysis, and multiple logistic regression analysis to evaluate the relationship between the level of serum tumor markers and ALK mutations. Results Fifteen cases with ALK mutations and 57 cases without mutations were identified. The result of the one‐way ANOVA analysis showed only CEA was significantly associated with ALK mutations (95% CI:39.05‐148.88; P = .001). The area under the ROC curve (AUC) of CEA was 0.705 (95%CI:0.567‐0.843; P = .015). However, no significant association was observed between CEA and ALK mutations though the result of correlation analysis (P = .069) and multivariate logistic regression analysis (OR = 0.988, 95% CI: 0.972‐1.003, P = .111). Conclusions In our study, we performed on the patients with stage IV lung adenocarcinoma in our region and found preoperative serum levels of SCCAg, CYRF21‐1, and NSE not suitable for the detection of ALK mutation. Although we observed a significant association between CEA and ALK mutations; however, it was not strong enough to distinguish ALK status for the patients in our region.
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Liu X, Liu S, Fu J, Huang J, Weng C, Fang X, Guan M, Wu Y, Yang L, Liu G. Knockdown of neuron-specific enolase suppresses the proliferation and migration of NCI-H209 cells. Oncol Lett 2019; 18:4809-4815. [PMID: 31611991 PMCID: PMC6781773 DOI: 10.3892/ol.2019.10797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 07/26/2019] [Indexed: 11/05/2022] Open
Abstract
Neuron-specific enolase (NSE) is generally considered as a marker for diagnosis and evaluation of the response to therapy in small cell lung cancer (SCLC). However, the role of NSE in the progression of SCLC remains to be elucidated. In the present study, the functions of NSE in SCLC, in addition to the potential mechanisms, were investigated using a loss-of-function approach with NSE-targeting small interfering (si)RNA. The knockdown of NSE markedly decreased the proliferation of NCI-H209 cells, as indicated by MTT assay (P<0.05). Furthermore, the silencing of NSE resulted in the formation of smaller and fewer colonies compared with that in the control group (P<0.001). Flow cytometric analysis indicated that the silencing of NSE resulted in a decreased S-phase population among NCI-H209 cells (P<0.05). Transwell assay demonstrated that the silencing of NSE suppressed the migration of NCI-H209 cells (P<0.001). NCI-H209 cells transfected with NSE siRNA-1 or negative control were collected and the protein levels of metastasis-associated genes were detected using western blot analysis. The results indicated that the knockdown of NSE led to downregulation of the pro-metastatic gene vascular endothelial growth factor (VEGF; P<0.05) and the upregulation of metastasis suppressor genes NM23 and E-cadherin (P<0.05). Taken together, the results of the present study demonstrated that the silencing of NSE suppressed the migration, proliferation and colony formation ability of SCLC cells and decreased the S-phase population. In addition, the knockdown of NSE resulted in the upregulation of E-cadherin and NM23 and the downregulation of VEGF. Collectively, these results indicated that intracellular NSE may have an important role in the progression of SCLC.
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91
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Xie E, Zhang W, Xu H, Ling Y, Zhang Q, Pan S. Correction of serum NSE reference intervals includes the unidentified hemolysis sample: 1-year data analysis from healthcare individuals. J Clin Lab Anal 2019; 33:e22997. [PMID: 31402486 PMCID: PMC6868418 DOI: 10.1002/jcla.22997] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Reference intervals (RIs) are important for interpretation of laboratory results. Neuron-specific enolase (NSE) can be utilized to aid the diagnosis of various tumors. However, while red blood cells contain NSE αγ-isozymes, unrecognized slight hemolysis will result in increasing of NSE levels in serum. The aim of this study was to correct the NSE RIs from healthcare individuals results which may have unidentified microhemolysis. METHODS A total of 15 047 healthy individuals undergoing regular health care were recruited to redefine the NSE reference interval according to the CA28-A3 document. Volunteers with NSE level between 16.3 ng/mL and the upper limit of new RIs were performed venipuncture for NSE retest. Simultaneously, serum free hemoglobin (fHb) was performed with o-tolidine test. RESULTS Reestablishment of NSE RIs is 0-18.9 ng/mL, which is wider than 0-16.3 ng/mL provided by the manufacturer. Seventy-four volunteers with the NSE level between 16.3 and 18.9 ng/mL were performed venipuncture for NSE retest. The ratio of NSE level drop to normal is 85.1% (63/74) in the subsequent results; there are significant differences between the median NSE of two groups (18.15 vs 14.15 ng/mL). Subsequently, the fHb concentration of 22 healthy individuals from 74 individuals was measured; there are significant differences between the median fHb of two groups (58 vs 30 mg/L). CONCLUSIONS Some specimens with slightly elevated NSE may be attributed to the unrecognized slight hemolysis. The correction RIs may be expected to decrease the abnormal NSE results.
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Mastroianni A, Panella R, Morelli D. Invisible hemolysis in serum samples interferes in NSE measurement. TUMORI JOURNAL 2019; 106:79-81. [PMID: 31394980 DOI: 10.1177/0300891619867836] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The accuracy of serum neuron-specific enolase (NSE) measurements is critical, particularly in neurologic diseases and cancer. NSE measurements are compromised by slight, even invisible, hemolysis, which can produce apparently higher NSE levels, leading to inappropriate clinical decisions. In this article, we describe this issue and propose a solution for avoiding incorrect results. METHODS Twenty blood samples from donors with NSE values that were within the reference interval were considered. Experimental hemolysis was induced in vitro to examine the relationship between the degree of hemolysis and the increase in serum NSE. The data were then subjected to statistical analysis. RESULTS There was excellent correlation (r2 0.953) between the degree of hemolysis and the rise in NSE concentration. Each hemolysis unit (equal to 1 mg/dL of free hemoglobin) corresponded to a mean value of 0.29 ± 0.09 ng/mL NSE that was released from red blood cells. CONCLUSION The hemolysis index must be measured in every sample with no evident hemolysis before assaying it for NSE. Moreover, if the degree of hemolysis is between 5 and 30 units, the increase in NSE (from 1.5 to 9.0 ng/mL) must be calculated, and the laboratory results should be appended with comments that suggest the approximate rise in NSE.
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93
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Zhou P, Li X. Serum miR-338-5p has potential for use as a tumor marker for retinoblastoma. Oncol Lett 2019; 18:307-313. [PMID: 31289501 PMCID: PMC6540340 DOI: 10.3892/ol.2019.10331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 01/31/2019] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to investigate the expression of microRNA (miR)-338-5p in retinoblastoma(RB), thereby evaluating whether it could have potential as a biomarker to screen patients with RB from healthy controls. The results revealed that miR-338-5p was significantly upregulated in patients with RB compared with in healthy controls. There was no significant difference in the expression of miR-338-5p between patients with RB of different age, sex, tumor stage or binocular disease. Receiver operator characteristic analysis indicated that serum miR-338-5p combined with neuron-specific enolase (NSE) had a larger area under the curve compared with serum miR-338-5p alone when diagnosing RB. In addition, suppression of miR-338-5p induced slower proliferation of ACBRI-181 and Y79 cells at 2, 3, 4 and 5 days compared with the negative control group. Flow cytometric analysis indicated that transfection with miR-338-5p inhibitor leads to significant cell cycle arrest in ACBRI-181 and Y79 cells compared with in the negative control group. Furthermore, transfection with miR-338-5p inhibitor significantly decreased ACBRI-181 and Y79 cell migration and invasion, suggesting that miR-338-5p may serve an oncogenic role in the progression of RB. In conclusion, the low expression of miR-338-5p in the serum of patients with RB suggests that it may be involved in the formation of RB. Serum miR-338-5p has the potential to be a tumor marker of RB, and, in combination with NSE, miR-338-5p may improve the early diagnosis rate of RB.
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Zhu MY, Liu WJ, Wang H, Wang WD, Liu NW, Lu Y. NSE from diffuse large B-cell lymphoma cells regulates macrophage polarization. Cancer Manag Res 2019; 11:4577-4595. [PMID: 31191019 PMCID: PMC6529732 DOI: 10.2147/cmar.s203010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 04/20/2019] [Indexed: 01/18/2023] Open
Abstract
Background/aims: Diffuse large B-cell lymphoma (DLBCL) is a highly common type of malignant and heterogeneous non-Hodgkin's lymphoma. Tumor-associated macrophages, specially the M2-type, promote tumor progression and drug resistance. The clinical outcome of patients with high neuron-specific enolase (NSE) expression is worse than that with low NSE expression. The tumor-promoting mechanism of NSE, however, remains unclear. This study explored the role of NSE in macrophage polarization associated with the immune microenvironment of DLBCL. Results: Our results showed that NSE protein expression was higher in lymphoma cell lines than in the B lymphocytes. Functional studies demonstrated that upregulation of NSE in lymphoma cells could promote M2 polarization and migration ability of macrophage, thereby consequently promoting the progression of lymphoma in vitro and in vivo. Further mechanism studies revealed that lymphoma-derived exosomes could mediate NSE into macrophages, NSE enhanced nuclear p50 translocation with subsequent defective classical nuclear factor-κB activity in macrophages. Conclusions: These results indicate that NSE may be a potential target for lymphoma therapy and a prognosis marker for lymphoma.
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Wang X, Tian X, Ma J, Zheng J. Clinical efficacy of gangliosides on premature infants suffering from white matter damage and its effect on the levels of IL-6, NSE and S100β. Exp Ther Med 2019; 18:63-68. [PMID: 31258638 PMCID: PMC6566046 DOI: 10.3892/etm.2019.7539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 01/30/2019] [Indexed: 01/04/2023] Open
Abstract
This study investigated the clinical efficacy of gangliosides on premature infants suffering from white matter damage and its effect on the levels of IL-6, neuron-specific enolase (NSE) and S100β. Seventy-six cases of premature infants suffering from white matter damage admitted to the Tianjin Central Hospital of Obstetrics and Gynecology from February 2016 to March 2017 were enrolled in this study. They were randomly divided into the control group and the observation group with 38 cases in each group. Control group was given conventional treatment, while the observation group was given ganglioside treatment on the basis of the treatment given to the control group. Craniocerebrum ultrasonic detection was used to observe the condition of white matter around the ventricle of child patients in the two groups, before and after treatment. ELISA was used to detect the levels of IL-6, NSE and S100β. Gesell developmental scale was used to compare the developmental quotient (DQ) of various function regions of the children. The total effective rate of the observation group was higher than that of the control group (P<0.05). The gray value of craniocerebrum ultrasonic detection in the observation group was significantly lower than that in the control group (P<0.05). IL-6, S100β and NSE levels of the child patients in the two groups were significantly declined at 7 and 14 days after birth (P<0.05). After 1 year, the observation group scored significantly higher DQ than the control group in the aspects of social adaptation, gross motor, fine motor, language and personal social contact. The sequel incidence of patients in the observation group was significantly lower than that of the control group (P<0.05). In conclusion, the intervention treatment with ganglioside for premature infants suffering from white matter damage was beneficial and provided a protective effect. It also reduced sequel and produced some promising results.
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Guvakov D, Bezinover D, Lomivorotov VV, Postnov VG, Weiss SJ, Cheung AT, Swain J, Lomivorotov VN. The "Ice Age" in Cardiac Surgery: Evolution of the "Siberian" Method of Brain Protection During Deep Hypothermic Perfusionless Circulatory Arrest. J Cardiothorac Vasc Anesth 2019; 33:3366-3374. [PMID: 31129071 DOI: 10.1053/j.jvca.2019.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/06/2019] [Accepted: 04/02/2019] [Indexed: 11/11/2022]
Abstract
Deep hypothermic perfusionless circulatory arrest was the first practical neuroprotective technique used for open-heart surgery. It was refined at the Novosibirsk Medical Research Center in Siberia and was actively used from the mid-1950s until 2001.This review describes the development of this technique and its contribution to our understanding of the dynamic changes in human physiology during induced hypothermia for circulatory arrest without extracorporeal perfusion. Deep hypothermic perfusionless circulatory arrest was an important stepping stone in the development of modern approaches in neuroprotection and monitoring during cardiac surgery.
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Yaman T, Karasu A, Uyar A, Kuşçu Y, Keleş ÖF. Congenital extraneural hemangioblastoma in a lamb. J Vet Diagn Invest 2019; 31:263-266. [PMID: 30774021 DOI: 10.1177/1040638719830464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A 1-mo-old Ivesi male lamb was presented with 2 large red masses on the skin of the left ear. The tumors were removed using gentle dissection and submitted for histologic evaluation. The tumors consisted of numerous thin-walled capillaries lined by endothelial cells and nests of stromal cells. Immunohistochemically, the endothelial cells were positive for CD45, and the stromal cells were positive for neuron-specific enolase. GFAP-positive cells were occasionally present within the tumor. Endothelial and stromal cells were negative for S100, CD34, CD31, and factor VIII-related antigen. The tumor had strong gross, microscopic, and immunohistochemical similarities with human extraneural hemangioblastoma.
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Liu Q, Fan J, Xu A, Yao L, Li Y, Wang W, Liang W, Yang F. Distribution of serum neuron-specific enolase and the establishment of a population reference interval in healthy adults. J Clin Lab Anal 2019; 33:e22863. [PMID: 30779465 PMCID: PMC6595301 DOI: 10.1002/jcla.22863] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/26/2019] [Accepted: 01/30/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Neuron-specific enolase (NSE) is an important tumor marker in the serum of patients with lung cancer. Elevated serum NSE levels are also associated with many other diseases. However, there is no unified population reference interval for serum NSE. This study aimed to investigate the distribution of serum NSE in healthy Chinese adults aged 20-79 years and to establish its reference interval in Chinese population. METHODS A total of 10 575 healthy subjects were in line with the requirements of this study. The concentration of serum NSE was detected by a fully automated Cobas e602 analyzer with matching reagents. The population reference interval for serum NSE was established using the unilateral 95th percentile (P95 ) according to standard guidelines. RESULTS The distributions of serum NSE were not significantly different between males and females (P > 0.05) and also did not differ by age (P > 0.05). Therefore, the population reference interval for serum NSE was established as upper limit 25.4 ng/mL (90% confidence interval: 24.5-26.2 ng/mL). CONCLUSIONS We established the first population reference interval for serum NSE in a large healthy Chinese adult cohort, which was higher than that recommended by Roche Diagnostics GmbH. This new reference interval is more practical and applicable in Chinese adults.
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Zhang C, Huang Y, Long J, Yao X, Wang J, Zang S, Qu W, Wang F. Serum chromogranin A for the diagnosis of gastroenteropancreatic neuroendocrine neoplasms and its association with tumour expression. Oncol Lett 2019; 17:1497-1504. [PMID: 30675205 PMCID: PMC6341841 DOI: 10.3892/ol.2018.9795] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 10/03/2018] [Indexed: 01/26/2023] Open
Abstract
The aim of the present study was to assess the clinical value of serum chromogranin A (CgA) levels in patients with gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) and to compare them with tumour expression of CgA. A total of 109 consecutive patients with confirmed GEP-NENs were enrolled in this prospective study between December 2012 and August 2016, including 73 patients with primary or recurrent GEP-NENs and 36 patients with GEP-NENs that were treated following surgery. Furthermore, 30 patients with benign gastrointestinal diseases and 30 healthy volunteers served as control groups. Serum CgA levels were measured by ELISA, using different reference values, in order to evaluate its diagnostic efficacy. Serum neuron-specific enolase was also measured to evaluate its diagnostic efficacy and analyse its association with serum CgA levels. The levels of CgA, synaptophysin and neural cell adhesion molecule 1 in the tumour tissue were assessed by immunohistochemical assays. The results indicated that serum CgA levels were significantly higher in patients with GEP-NENs compared with the control groups (P<0.05). No association was observed between serum CgA levels and tumour grade (G1, G2 and G3), but serum CgA levels differed significantly between patients with GEP-NENs of different origins (P<0.05). A serum CgA cut-off value of 85.3 ng/ml was associated with high sensitivity (64.4%) and specificity (92.7%). Different reference values were recommended for NENs of different origins, with serum CgA cut-off values of 96.72, 51.13 and 86.19 ng/ml for the stomach, intestines and pancreas, respectively. The serum CgA levels were consistent with the CgA expression in the tumour. In conclusion, serum CgA may serve as a circulating pathological biomarker for the diagnosis of GEP-NENs. The use of different reference values for different tumour origins may improve the diagnostic efficacy of CgA for GEP-NENs. A cut-off value of 85.3 ng/ml is recommended in the Chinese population.
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Mori H, Nakajima K, Kadomoto S, Mizokami A, Ikeda H, Wakabayashi H, Kinuya S. Imaging Somatostatin Receptor Activity in Neuroendocrine-differentiated Prostate Cancer. Intern Med 2018; 57:3123-3128. [PMID: 29877274 PMCID: PMC6262717 DOI: 10.2169/internalmedicine.0630-17] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Neuroendocrine-differentiated prostate cancer (NEPC) is a rare pathophysiology. We herein report a patient diagnosed with conventional prostate adenocarcinoma before hormone therapy, which was later diagnosed as NEPC. The nadir of prostate-specific antigen (PSA) was achieved once. However, adenocarcinoma changed to NEPC in recurrence, and the serum progastrin-releasing peptide (Pro-GRP) and neuron-specific enolase (NSE) values increased. A prostate needle biopsy revealed neuroendocrine differentiation. The chemotherapy regimen was changed, and somatostatin receptor scintigraphy (SRS) helped to determine the distribution and features of lesions as well as the effects of therapy. When prostate cancer worsens despite conventional therapy, NEPC should be considered.
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