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https://www.readbyqxmd.com/read/29773953/mir-34a-mediated-regulation-of-xist-in-female-cells-under-inflammation
#1
Botros B Shenoda, Yuzhen Tian, Guillermo M Alexander, Enrique Aradillas-Lopez, Robert J Schwartzman, Seena K Ajit
Background: Evidence is overwhelming for sex differences in pain, with women representing the majority of the chronic pain patient population. There is a need to explore novel avenues to elucidate this sex bias in the development of chronic inflammatory pain conditions. Complex regional pain syndrome (CRPS) is a chronic neuropathic pain disorder, and the incidence of CRPS is greater in women than in men by ~4:1. Since neurogenic inflammation is a key feature of CRPS, dysregulation of inflammatory responses can be a factor in predisposing women to chronic pain...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29769661/circulating-mir-374a-5p-is-a-potential-modulator-of-the-inflammatory-process-in-obesity
#2
Ayo P Doumatey, William J He, Amadou Gaye, Lin Lei, Jie Zhou, Gary H Gibbons, Adebowale Adeyemo, Charles N Rotimi
Obese individuals without expected metabolic co-morbidities are referred to as metabolically healthy obese (MHO). The molecular mechanisms underlying this phenotype remain elusive. MicroRNAs may be involved in the MHO phenotype. To test this hypothesis, we screened 179 serum miRNAs in 20 African-American women (10 MHOs and 10 metabolically abnormal obese individuals -MAO). We identified 8 differentially expressed miRNAs (DEMs) with validation in an independent sample of 64 MHO and 34 MAO. Of the eight DEMs in the screening phase (p ≤ 0...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29762500/circulating-micrornas-in-young-patients-with-acute-coronary-syndrome
#3
Kind-Leng Tong, Ahmad Syadi Mahmood Zuhdi, Wan Azman Wan Ahmad, Paul M Vanhoutte, Joao Pedro de Magalhaes, Mohd Rais Mustafa, Pooi-Fong Wong
Circulating microRNAs (miRNAs) hold great potential as novel diagnostic markers for acute coronary syndrome (ACS). This study sought to identify plasma miRNAs that are differentially expressed in young ACS patients (mean age of 38.5 ± 4.3 years) and evaluate their diagnostic potentials. Small RNA sequencing (sRNA-seq) was used to profile plasma miRNAs. Discriminatory power of the miRNAs was determined using receiver operating characteristic (ROC) analysis. Thirteen up-regulated and 16 down-regulated miRNAs were identified in young ACS patients...
May 15, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29754884/circulating-salivary-mirna-hsa-mir-221-as-clinically-validated-diagnostic-marker-for-hand-foot-and-mouth-disease-in-pediatric-patients
#4
Nyo Min, Previtha Dawn Sakthi Vale, Anng Anng Wong, Natalie Woon Hui Tan, Chia Yin Chong, Chih-Jung Chen, Robert Y L Wang, Justin Jang Hann Chu
Enhancements in the diagnostic capabilities using host biomarkers are currently much needed where sensitivity and specificity issues plague the diagnosis of Hand, Foot and Mouth Disease (HFMD) in pediatrics clinical samples. We investigated miRNome profiles of HFMD saliva samples against healthy children and developed miRNA-based diagnosis models. Our 6-miRNA scoring model predicted HFMD with an overall accuracy of 85.11% in the training set and 92.86% in the blinded test set of Singapore cohort. Blinded evaluation of the model in Taiwan HFMD cases resulted in 77...
May 10, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29751293/the-potential-atheroprotective-role-of-plant-mir156a-as-a-repressor-of-monocyte-recruitment-on-inflamed-human-endothelial-cells
#5
Dongxia Hou, Fangfang He, Lina Ma, Minghui Cao, Zhen Zhou, Zhe Wei, Yunxing Xue, Xiaolin Sang, Hoshun Chong, Congcong Tian, Shasha Zheng, Jing Li, Ke Zen, Xi Chen, Zhi Hong, Chen-Yu Zhang, Xiaohong Jiang
MicroRNAs have become the spotlight of the biological community for more than a decade, but we are only now beginning to understand their functions. The detection of stably expressed endogenous microRNAs in human blood suggests that these circulating miRNAs can mediate intercellular communication. Our previous study reported the surprising finding that exogenous rice MIR168a could regulate liver low-density lipoprotein receptor adapter protein 1 (LDLRAP1) gene expression in mice. Here, we show that plant MIR156a, which is abundantly expressed in dietary green veggies, also stably presents in healthy human serum...
April 8, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29750752/serum-exosomal-micrornas-as-potent-circulating-biomarkers-for-melanoma
#6
Li Tengda, Long Shuping, Gu Mingli, Guo Jie, Liu Yun, Zhang Weiwei, Deng Anmei
Exosomes are small homogenous membrane vesicles that derive from the exocytosis process of cells and can contain DNA, microRNAs (miRNAs), and/or proteins. Characterization of the content profile of exosomes may reflect the state of the cells that release them, and this could be predictive of disease. In this study, to explore the potential biomarkers for melanoma, we isolated serous exosomes from 30 patients with melanoma and 30 healthy individuals using the ultracentrifugation method. Five miRNAs were subsequently detected in each sample by quantitative reverse transcription-PCR: miRNA-532-5p, miRNA-106b, miRNA-200c, miRNA-199a-5p, and miRNA-210...
May 10, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29748958/functional-roles-and-potential-clinical-application-of-mirna-345-5p-in-prostate-cancer
#7
Ilker Tinay, Mingyue Tan, Bin Gui, Lillian Werner, Adam S Kibel, Li Jia
BACKGROUND: MicroRNAs (miRNAs) are small non-coding RNAs, which negatively regulate gene expression and impact prostate cancer (PCa) growth and progression. Circulating miRNAs are stable and detectable in cell-free body fluids, such as serum. Investigation of circulating miRNAs presents great potential in uncovering new insights into the roles of miRNAs in PCa diagnosis and therapy. METHODS: Using TaqMan miRNA quantitative reverse transcription polymerase chain reaction (RT-qPCR), we compared the expression levels of five miRNAs (miR-193a-3p, miR-9-3p, miR-335-5p, miR-330-3p, and miR-345-5p) in serum samples from 20 normal individuals without cancer, 25 patients with localized disease, 25 patients with hormone-naïve or hormone sensitive metastatic disease, and 25 patients with metastatic castration-resistant prostate cancer (CRPC)...
May 10, 2018: Prostate
https://www.readbyqxmd.com/read/29747626/differential-plasma-microvesicle-and-brain-profiles-of-microrna-in-experimental-cerebral-malaria
#8
Amy Cohen, Anna Zinger, Natalia Tiberti, Georges E R Grau, Valery Combes
BACKGROUND: Cerebral malaria (CM) is a fatal complication of Plasmodium infection, mostly affecting children under the age of five in the sub-Saharan African region. CM pathogenesis remains incompletely understood, although sequestered infected red blood cells, inflammatory cells aggregating in the cerebral blood vessels, and the microvesicles (MV) that they release in the circulation, have been implicated. Plasma MV numbers increase in CM patients and in the murine model, where blocking their release, genetically or pharmacologically, protects against brain pathology, suggesting a role of MV in CM neuropathogenesis...
May 11, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29746865/mir-130a-3p-inhibits-migration-and-invasion-by-regulating-rab5b-in-human-breast-cancer-stem-cell-like-cells
#9
Xiangjie Kong, Junfeng Zhang, Jia Li, Jianfeng Shao, Lin Fang
Breast cancer stem cells (BCSCs) constitute a subpopulation of tumor cells that express stem cell-associated markers and have a high capacity for tumor generation in vivo. MicroRNAs (miRNAs) are involved in tumorigenesis by regulating specific oncogenes and tumor suppressor genes, and their roles in BCSCs are becoming more apparent. We try to reveal the mechanism by which specific miRNA plays its function in BCSCs. Herein, we show that miR-130a-3p is down-regulated in human breast cancer tissues and exosomes from circulating blood...
May 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29746584/specific-serum-and-csf-microrna-profiles-distinguish-sporadic-behavioural-variant-of-frontotemporal-dementia-compared-with-alzheimer-patients-and-cognitively-healthy-controls
#10
Johannes Denk, Felix Oberhauser, Johannes Kornhuber, Jens Wiltfang, Klaus Fassbender, Matthias L Schroeter, Alexander E Volk, Janine Diehl-Schmid, Johannes Prudlo, Adrian Danek, Bernhard Landwehrmeyer, Martin Lauer, Markus Otto, Holger Jahn
Information on circulating miRNAs in frontotemporal lobar degeneration is very limited and conflicting results have complicated an interpretation in Alzheimer's disease thus far. In the present study we I) collected samples from multiple clinical centers across Germany, II) defined 3 homogenous patient groups with high sample sizes (bvFTD n = 48, AD n = 48 and cognitively healthy controls n = 44), III) compared expression levels in both CSF and serum samples and IV) detected a limited set of miRNAs by using a MIQE compliant protocol based on SYBR-green miRCURY assays that have proven reliable to generate reproducible results...
2018: PloS One
https://www.readbyqxmd.com/read/29744553/changes-in-mirna-5196-expression-as-a-potential-biomarker-of-anti-tnf-%C3%AE-therapy-in-rheumatoid-arthritis-and-ankylosing-spondylitis-patients
#11
Marzena Ciechomska, Krzysztof Bonek, Michal Merdas, Patryk Zarecki, Jerzy Swierkot, Piotr Gluszko, Katarzyna Bogunia-Kubik, Wlodzimierz Maslinski
In this study, we analysed the expression level of sera circulating miRNA-5196 in rheumatoid arthritis (RA) and ankylosing spondylitis (AS) patients before and after tumor necrosis factor (TNF)-α therapy as biomarkers predicting positive treatment outcome. We enrolled 10 RA patients, 13 AS patients, and 12 healthy individuals in the study. The expression of miRNA-5196 was measured by real-time polymerase chain reaction before and after anti-TNF-α therapy. Disease activity of RA patients was assessed using disease activity score 28 (DAS28), whereas ankylosing spondylitis DAS (ASDAS) was used in AS patients...
May 9, 2018: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/29744036/alternative-mirnas-human-sequences-misidentified-as-plant-mirnas-in-plant-studies-and-in-human-plasma
#12
Kenneth W Witwer
Background: A 2017 study reported that "Plant miRNAs found in human circulating system provide evidences of cross kingdom RNAi". Analysis of two human blood plasma sequencing datasets was said to provide evidence for uptake of plant miRNAs into human plasma. The results were also purportedly inconsistent with contamination. Methods: Sequences from public datasets and miRNA databases were compared with results downloaded from the website of the reporting journal. Results: Only one putative plant miRNA ("peu-MIR2910) mapped consistently above background, and this sequence is found with 100% identity in a human rRNA...
2018: F1000Research
https://www.readbyqxmd.com/read/29743907/circulating-mirna-levels-differ-with-respect-to-carotid-plaque-characteristics-and-symptom-occurrence-in-patients-with-carotid-artery-stenosis-and-provide-information-on-future-cardiovascular-events
#13
Rafal Badacz, Tadeusz Przewłocki, Jacek Gacoń, Ewa Stępień, Francisco J Enguita, Izabela Karch, Krzysztof Żmudka, Anna Kabłak-Ziembicka
Introduction: Circulating microRNAs (miRNAs) levels are potentially important biomarkers and therapeutic targets of cerebral ischemic event (CIE) in patients with internal carotid artery stenosis (ICAS). Aim: This prospective study investigated associations between circulating miRNAs and symptomatic and asymptomatic ICAS, carotid plaque morphology and future cardiovascular events. Material and methods: Circulating miRNAs (miR-1-3p, miR-16-5p, miR-34a-5p, miR-124-3p, miR-133a-3p, miR-133b, miR-134-5p, miR-208b-3p, miR-375 and miR-499-5p) were analyzed in 92 consecutive patients with significant ICAS referred for revascularization...
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29740341/circulating-mirnas-as-putative-biomarkers-of-exercise-adaptation-in-endurance-horses
#14
Katia Cappelli, Stefano Capomaccio, Andrea Viglino, Maurizio Silvestrelli, Francesca Beccati, Livia Moscati, Elisabetta Chiaradia
Endurance exercise induces metabolic adaptations and has recently been reported associated with the modulation of a particular class of small noncoding RNAs, microRNAs, that act as post-transcriptional regulators of gene expression. Released into body fluids, they termed circulating miRNAs, and they have been recognized as more effective and accurate biomarkers than classical serum markers. This study examined serum profile of miRNAs through massive parallel sequencing in response to prolonged endurance exercise in samples obtained from four competitive Arabian horses before and 2 h after the end of competition...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29739748/circulating-exosomal-mir-27a-and-mir-130a-act-as-novel-diagnostic-and-prognostic-biomarkers-of-colorectal-cancer
#15
Shukui Wang, Xiangxiang Liu, Bei Pan, Li Sun, Xiaoxiang Chen, Kaixuan Zeng, Xiuxiu Hu, Tao Xu, Mu Xu
BACKGROUND: Colorectal cancer (CRC) is one of the most common cancers worldwide usually with poor prognosis due to the advanced stage when diagnosed. This study aimed to investigate whether specific circulating exosomal miRNAs could act as biomarkers for early diagnosis of CRC. METHODS: A total of 369 peripheral blood samples were included in this study. In the discovery phase, circulating exosomal miR-27a and miR-130a were selected after synthetical analysis of two GEO datasets and TCGA database...
May 8, 2018: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29739419/an-increased-fraction-of-circulating-mir-363-and-mir-16-is-particle-bound-in-patients-with-chronic-lymphocytic-leukaemia-as-compared-to-normal-subjects
#16
Afaf Alharthi, Daniel Beck, Dena R Howard, Peter Hillmen, Melanie Oates, Andrew Pettitt, Simon D Wagner
OBJECTIVES: In vitro culture studies have shown that miR-363 is enriched in extracellular vesicles from chronic lymphocytic leukaemia cells. We wondered whether miR-363 was detectable in plasma, which is an essential precondition for further studies to assess its usefulness as a biomarker. Using samples from two clinical trials: one enrolling patients with advanced disease and the other asymptomatic patients with early stage disease, we determined plasma miR-363 levels and secondly investigated the distribution of this miRNA between plasma and particle bound fractions in patients and normal subjects...
May 8, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29738828/time-course-expression-profile-and-diagnostic-potential-of-a-mirna-panel-in-exosomes-and-total-serum-in-acute-liver-injury
#17
Tarek K Motawi, Mohamed R Mohamed, Nancy N Shahin, Mohamed A M Ali, May A Azzam
Circulating miRNAs have recently emerged as attractive candidates for biomarker discovery. However, they have a variant distribution in circulation, and the diagnostic significance of their compartmentalization is yet to be elucidated. This study explored the time-course expression profile and the diagnostic potential of miRNAs-122a-5p, 192-5p, 193a-3p and 194-5p in exosomal and total serum compartments in two rat models of acute liver injury (ALI)1 . Exosomes were isolated and characterized in terms of morphology, size and CD-63 surface marker expression...
May 5, 2018: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29737876/microrna-221-222-expression-in-atherosclerotic-coronary-artery-plaque-and-peripheral-blood
#18
Aslıhan Esra Bildirici, Serdal Arslan, Nil Özbilüm Şahin, Öcal Berkan, Osman Beton, Mehmet Birhan Yılmaz
BACKGROUND: Atherosclerosis is a disease of the arterial wall with predilection to some sites on others. MicroRNAs (miRNAs) are a class of the non-coding RNAs regulating the target gene expression at post-transcriptional level. Different miRNAs were found at distinct stages of plaque development and expression of miRNAs' might play an important role in the local behaviour of atherosclerotic plaques. OBJECTIVE: We aimed to investigate and compare mirR-221/222 expression levels in tissues and in circulation in patients with and without overt atherosclerosis...
May 8, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29736829/circulating-microrna-22-3p-predicts-the-malignant-progression-of-precancerous-gastric-lesions-from-intestinal-metaplasia-to-early-adenocarcinoma
#19
Tsung-Hsing Chen, Cheng-Tang Chiu, Chieh Lee, Yin-Yi Chu, Hao-Tsai Cheng, Jun-Te Hsu, Ren-Chin Wu, Ta-Sen Yeh, Kwang-Huei Lin
BACKGROUND: Gastric cancer has a poor outcome and identifying useful biomarkers from peripheral blood or tissue could allow its early detection, or potentially precancerous changes, thus improving the curative rates. MicroRNAs (miRNAs) have been shown to offer great potential in cancer diagnosis and prediction. AIM: Here, we investigated the role of plasma miRNAs in the natural course of gastric cancer, from intestinal metaplasia to early cancer. The findings were used to understand whether patients at a high risk of malignancy could be given appropriate interventions in the early disease process, such as using endoscopic submucosal dissection to treat gastric dysplasia or early gastric cancer...
May 7, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29735554/mirna-profiling-of-magnetic-nanopore-isolated-extracellular-vesicles-for-the-diagnosis-of-pancreatic-cancer
#20
Jina Ko, Neha Bhagwat, Taylor Black, Stephanie S Yee, Young-Ji Na, Stephen A Fisher, Junhyong Kim, Erica L Carpenter, Ben Z Stanger, David Issadore
Improved diagnostics for pancreatic ductal adenocarcinoma (PDAC) to detect the disease at earlier, curative stages and to guide treatments is crucial to progress against this disease. The development of a liquid biopsy for PDAC has proven challenging due to the sparsity and variable phenotypic expression of circulating biomarkers. Here we report methods we developed for isolating specific subsets of extracellular vesicles (EV) from plasma using a novel magnetic nanopore capture technique. In addition, we present a workflow for identifying EV miRNA biomarkers using RNA sequencing and machine-learning algorithms, which we used in combination to classify distinct cancer states...
May 7, 2018: Cancer Research
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