scholarly journals Diagnostic Value of the lncRNA NEAT1 in Peripheral Blood Mononuclear Cells of Patients with Sepsis

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Shuying Huang ◽  
Kejian Qian ◽  
Yuanfang Zhu ◽  
Zikun Huang ◽  
Qing Luo ◽  
...  

Background. This study aims to evaluate the diagnostic value of nuclear-enriched abundant transcript 1 (NEAT1) expression in peripheral blood mononuclear cells (PBMCs) for the early diagnosis of sepsis. Methods. A total of 59 patients with sepsis, 52 noninfectious SIRS patients, and 56 healthy controls were recruited fort this study. The levels of NEAT1 expression in PBMCs were measured using quantitative real-time polymerase chain reaction (qRT-PCR). Results. Compared with healthy controls, NEAT1 expression of PBMCs in sepsis and SIRS groups were significantly increased (3.76 ± 0.71- and 1.64 ± 0.43-fold, resp.) (P<0.01), but NEAT1 levels are significantly lower in the SIRS group than in the sepsis group, and there was no statistical significant relevance between survivors and nonsurvivors in patients with sepsis. NEAT1 with an area under the curve (AUC) of 0.851 (95% CI: 0.812–0.935) indicated sensitivity (67.85%) and specificity (87.27%) for the diagnosis for sepsis, the positive predictive value (PPV) was 83.3%, and the negative predictive value (NPV) was 71.6%. The AUC for NEAT1 in the diagnosis of SIRS versus healthy controls was 0.755 (95% CI: 0.664–0.847), with 69.23% sensitivity and 70.91% specificity, the PPV was 72.3%, and the NPV was 72.49%. Conclusion. Measurement of NEAT1 expression in PBMCs could be considered as a good additive marker for the diagnosis of sepsis.

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Wenyu Wang ◽  
Jing Wang ◽  
Hong Chen ◽  
Xiaofei Zhang ◽  
Kaiyu Han

Background. The present study focused on the potential clinical significance of miR-3934 in the occurrence and development of asthma. Methods. 80 asthma and 80 healthy controls were recruited in this study. The peripheral blood mononuclear cells (PBMCs) and serum samples of the asthma patients as well as the healthy controls were isolated, and the expression levels of miR-3934 in PBMCs were examined by RT-qPCR methods. Furthermore, the relationship between the level of miR-3934 in PBMCs and the disease severity has been analyzed, and the potential diagnostic value of miR-3934 was evaluated by the receiver operating characteristics (ROC) curve. Finally, the expression level of IL-6, IL-8, and IL-33 have been detected using the ELISA kits, and Pearson’s correlation analysis was performed to investigate the relationship between the level of miR-3934 in PBMCs and the serum expression of those inflammatory cytokines in asthma patients. Results. miR-3934 was dramatically decreased in PBMCs of the asthma patients, and miR-3934 was markedly reduced in PBMCs of patients with severe asthma vs. mild asthma. Furthermore, ROC analysis showed that levels of miR-3934 in PBMCs can distinguish asthma patient, especially the severe asthma patients from the controls. Finally, the levels of miR-3934 in PBMCs were negatively correlated with the serum levels of IL-6, IL-8, and IL-33 in asthma patients, respectively. Conclusions. miR-3934 was downregulated in PBMCs of asthmatic patients and may function as a potential diagnosis biomarker.


2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaoqian Fu ◽  
Guofu Zhang ◽  
Yansong Liu ◽  
Ling Zhang ◽  
Fuquan Zhang ◽  
...  

Abstract Background Schizophrenia is a severe, heritable, and refractory psychiatric disorder. Several studies have shown that the disrupted in schizophrenia 1 (DISC1) gene is closely associated with schizophrenia by its role in neuronal morphology, synaptic function, brain development, and dopamine homeostasis etc. This study intended to investigate the expression levels of DISC1 gene in schizophrenia patients compared with healthy controls, and the expression variation of DISC1 gene before and after antipsychotic treatment in schizophrenia patients. Methods In this study, we compared DISC1 expression levels in blood of 48 healthy controls, and 32 schizophrenia patients before and after 12 weeks of antipsychotic treatment using real-time quantitative PCR (RT-qPCR) analysis. Results The expression levels of DISC1 gene in peripheral blood mononuclear cells of schizophrenia patients before antipsychotic treatment were higher than those in healthy controls (P < 0.01); whereas after antipsychotic treatment, the expression levels of DISC1 gene in peripheral blood mononuclear cells of schizophrenia patients still remained increased (P < 0.01). Conclusions Our study provided further support for the involvement of DISC1 in the development of schizophrenia.


2011 ◽  
Vol 96 (11) ◽  
pp. E1866-E1870 ◽  
Author(s):  
Lingyan Xu ◽  
Xinran Ma ◽  
Yanyan Wang ◽  
Xiaoli Li ◽  
Yicheng Qi ◽  
...  

Abstract Context: Graves' disease (GD) is a common autoimmune disease that affects the thyroid gland. Its pathogenesis is tightly involved with aberrant proinflammatory cytokine production. Osteopontin (OPN), an extracellular matrix protein of pleiotropic properties, has recently been recognized as a potent inflammatory cytokine in several autoimmune diseases. Objective: This study sought to explore the pathophysiological role of OPN in GD by comparing OPN levels in initial GD patients and healthy controls. Methods: Seventy-six patients who met criteria for initial GD and sixty-five healthy controls were recruited. OPN and other clinical GD diagnosis parameters were measured. In addition, the coexpression of several OPN receptors as well as various nuclear factor-κB (NF-κB) downstream target genes were examined in peripheral blood mononuclear cells from human subjects. The effect of OPN on NF-κB activation was determined by in vitro assays. Results: We demonstrated for the first time that the OPN levels are enhanced in serum from GD patients. OPN levels are strongly associated with clinical serum parameters for GD diagnosis. The coexpression of selective OPN receptors and inflammatory response genes was enhanced in peripheral blood mononuclear cells from GD patients. Furthermore, serum from GD patients activated NF-κB activity in vitro, which was significantly suppressed by OPN monoclonal antibody abrogation. Conclusion: These data indicated a clinical correlation between serum OPN levels and GD. OPN could affect GD development through NF-κB activation and the subsequent changes in inflammatory milieu. OPN could serve as a novel biomarker for GD as well as a potential target for GD treatment.


2014 ◽  
Vol 10 (9) ◽  
pp. 2398-2406 ◽  
Author(s):  
Mei-Ling Liu ◽  
Peng Zheng ◽  
Zhao Liu ◽  
Yi Xu ◽  
Jun Mu ◽  
...  

A GC-MS based metabolomic approach was applied to characterize the metabolic profiling of schizophrenia subjects (n = 69) and healthy controls (n = 85) in peripheral blood mononuclear cells (PBMCs) to identify and validate biomarkers for schizophrenia.


Author(s):  
Hiroshi Otsu ◽  
Mikio Watanabe ◽  
Naoya Inoue ◽  
Ryota Masutani ◽  
Yoshinori Iwatani

AbstractBackground:microRNAs (miRNAs) circulate in the blood and negatively regulate the expression of mRNAs. Some miRNAs are associated with the development of autoimmune thyroid diseases (AITD); however, there are few reports on the association between miRNA expression and the pathogenesis of AITD or the physiological variations of circulating miRNAs, which are important to examine as biomarkers.Methods:We examined the circadian and day-to-day variations in the expression levels of 5 miRNAs (miR-125a, miR-146a, miR-155, let-7e and miR-106a) in plasma and peripheral blood mononuclear cells (PBMC). We also analysed the expression levels of two of these miRNAs (miR-146a and miR-155) in 20 healthy controls, 60 Graves’ disease (GD) patients and 50 Hashimoto’s disease (HD) patients.Results:For each miRNA, we observed wide intraindividual variation [coefficient of variation value (CV): 70%–100%] compared to measurement error (CV: 20%–40%). In patients with AITD, HD, GD in remission and mild HD, the expression levels of miR-146a in PBMC were increased 296%, 328%, 348% and 464% above the levels in healthy controls, respectively (p=0.0443 and p=0.0273, p=0.0267 and p=0.0052, respectively). In severe HD, the expression level of miR-155 in plasma was increased to 347% of that in healthy controls (p=0.0256).Conclusions:The expression levels of miRNAs in plasma and PBMC showed wide intraindividual variation. In addition, miR-146a may be associated with the development of AITD.


Cephalalgia ◽  
1993 ◽  
Vol 13 (6) ◽  
pp. 413-416 ◽  
Author(s):  
M Leone ◽  
P Sacerdote ◽  
D D'Amico ◽  
AE Panerai ◽  
G Bussone

Opioid system hypofunction has been postulated in cluster headache (CH) on the basis of reduced opioid levels found in the cerebrospinal fluid (CSF). In this study beta-endorphin levels were monitored in the peripheral blood mononuclear cells of 65 episodic CH patients (32 in remission and 33 in cluster period) and 50 healthy controls. Beta-endorphin levels were significantly lower than controls in CH patients experiencing both phases of the illness (ANOVA, p < 0.0001). The persistence of this abnormality during pain-free remission suggests a primary alteration in the regulation of beta-endorphin in peripheral blood mononuclear cells. We speculate that these findings reflect reduced CNS levels of beta-endorphin in CH.


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