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Plasma microRNA

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https://www.readbyqxmd.com/read/27926529/altered-microrna-profiles-in-plasma-exosomes-from-mesial-temporal-lobe-epilepsy-with-hippocampal-sclerosis
#1
Shaofeng Yan, Hua Zhang, Wenyan Xie, Fangang Meng, Kai Zhang, Yin Jiang, Xin Zhang, Jianguo Zhang
Mesial temporal lobe epilepsy with hippocampal sclerosis (mTLE-HS) is the most common type of focal epilepsy. The present study aimed to explore the expression and functions of exosomal microRNAs in mTLE-HS. A total of 50 microRNAs were found to be differentially expressed in mTLE-HS compared with healthy controls. Among them, 2 were increased and 48 were decreased. The 6 significant differentially expressed candidate microRNAs (miR-3613-5p, miR-4668-5p, miR-8071, miR-197-5p, miR-4322, and miR-6781-5p ) in exosome were validated...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27924211/circulating-mir-126-and-mir-499-reflect-progression-of-cardiovascular-disease-correlations-with-uric-acid-and-ejection-fraction
#2
Masoud Khanaghaei, Fereshtah Tourkianvalashani, Seyedhossein Hekmatimoghaddam, Nasrin Ghasemi, Mahdi Rahaie, Vahid Khorramshahi, Akhtar Sheikhpour, Zahra Heydari, Fatemeh Pourrajab
BACKGROUND: The aim of this study was to assess plasma levels of endothelium- and heart-associated microRNAs (miRNAs) miR-126 and miR-499, respectively, using quantitative reverse transcriptase polymerase chain reaction. METHODS: A two-step analysis was conducted on 75 patients undergoing off-pomp coronary artery bypass graft (CABG) surgery. Five biomarkers of inflammation and cardiac injury were assessed in addition to the above-mentioned miRNAs. RESULTS: Plasma concentrations of miRNAs were found to be significantly correlated with plasma levels of cardiac troponin I (cTnI) (miR-499, r 0...
January 2016: Heart International
https://www.readbyqxmd.com/read/27916857/in-silico-characterization-of-mirna-and-long-non-coding-rna-interplay-in-multiple-myeloma
#3
Domenica Ronchetti, Martina Manzoni, Katia Todoerti, Antonino Neri, Luca Agnelli
The identification of deregulated microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in multiple myeloma (MM) has progressively added a further level of complexity to MM biology. In addition, the cross-regulation between lncRNAs and miRNAs has begun to emerge, and theoretical and experimental studies have demonstrated the competing endogenous RNA (ceRNA) activity of lncRNAs as natural miRNA decoys in pathophysiological conditions, including cancer. Currently, information concerning lncRNA and miRNA interplay in MM is virtually absent...
November 29, 2016: Genes
https://www.readbyqxmd.com/read/27910062/plasma-and-saliva-mir-21-expression-in-colorectal-cancer-patients
#4
A A Sazanov, E V Kiselyova, A A Zakharenko, M N Romanov, M I Zaraysky
MicroRNA-21 (miR-21) expression was quantified by real-time qRT-PCR in peripheral blood and saliva samples obtained from patients diagnosed with colorectal cancer (CRC) of varying degrees of malignancy and healthy volunteers. All patients had adenocarcinoma located in the distal colon at different stages. Significant differences were detected between the control group and the total experimental group of CRC patients (plasma, P = 0.0001; saliva, P = 5e-12). MiR-21 expression was also significantly different in certain subgroups of patients with CRC disease stages II-IV as compared to the control group...
December 2, 2016: Journal of Applied Genetics
https://www.readbyqxmd.com/read/27909844/design-and-fabrication-a-gold-nanoparticle-dna-based-nanobiosensor-for-detection-of-microrna-involved-in-alzheimer-s-disease
#5
Shokoufeh Delkhahi, Mahdi Rahaie, Fereshteh Rahimi
MicroRNAs are small RNAs which regulate gene expression by translational repression or degradation of messenger RNAs. Regards to important role of these biomolecules in human disease progress, to produce sensitive, simple and cost-effective assays for microRNAs are in urgent demand. miR-137 in Alzheimer's patients has demonstrated its potential as non-invasive biomarkers in blood for Alzheimer's disease diagnosis and prognosis. This paper describes a novel, sensitive and specific microRNA assay based on Colorimetric detection of gold nanoparticles and hybridization chain reaction amplification (HCR)...
December 1, 2016: Journal of Fluorescence
https://www.readbyqxmd.com/read/27908272/exosome-encapsulated-micrornas-as-potential-circulating-biomarkers-in-colon-cancer
#6
Mina Hosseini, Sara Khatamianfar, Seyed Mahdi Hassanian, Reza Nedaeinia, Mojtaba Shafiee, Mina Maftouh, Majid Ghayour-Mobarhan, Soudabeh Shahid Sales, Amir Avan
Exosome-encapsulated microRNAs are being suggested as a new class novel biomarker and diagnostic and predictive markers in colorectal cancer. These particles are released from many cell types into the extracellular space upon fusion of multivesicular bodies (MVB) with the plasma membrane. They contain a wide variety of information, including proteins, lipids, RNAs, non-transcribed RNAs, microRNAs, which can be circulated in various body fluids (e.g., blood, salvia, ascites, urine). Exosomes can be taken up by neighboring or distant cells and thereby modulate the functional of recipient cells and play a key role in disease progression or facilitate metastasis in cancers...
December 1, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27907140/detection-of-acute-radiation-sickness-a-feasibility-study-in-non-human-primates-circulating-mirnas-for-triage-in-radiological-events
#7
Naresh Menon, Claude J Rogers, Agnes I Lukaszewicz, James Axtelle, Marshleen Yadav, Feifei Song, Arnab Chakravarti, Naduparambil K Jacob
Development of biomarkers capable of estimating absorbed dose is critical for effective triage of affected individuals after radiological events. Levels of cell-free circulating miRNAs in plasma were compared for dose-response analysis in non-human primates (NHP) exposed to lethal (6.5 Gy) and sub-lethal (1 and 3 Gy) doses over a 7 day period. The doses and test time points were selected to mimic triage needs in the event of a mass casualty radiological event. Changes in miRNA abundance in irradiated animals were compared to a non-irradiated cohort and a cohort experiencing acute inflammation response from exposure to lipopolysaccharide (LPS)...
2016: PloS One
https://www.readbyqxmd.com/read/27905554/increased-plasma-vegf-levels-following-ischemic-preconditioning-are-associated-with-downregulation-of-mirna-762-and-mir-3072-5p
#8
Koji Ueno, Makoto Samura, Tamami Nakamura, Yuya Tanaka, Yuriko Takeuchi, Daichi Kawamura, Masaya Takahashi, Tohru Hosoyama, Noriyasu Morikage, Kimikazu Hamano
Ischemic preconditioning (IPC) has protective effects against ischemia-perfusion injury of organs. In the present study, we investigated the associated mechanisms after performing remote IPC (rIPC) of lower limbs by clamping abdominal aorta in mice. Subsequent experiments showed decreased damage and paralysis of lower limbs following spinal cord injury (SCI). Concomitantly, plasma vascular endothelial growth factor (VEGF) levels were increased 24 h after rIPC compared with those in sham-operated animals. In subsequent microRNA analyses, thirteen microRNAs were downregulated in exosomes 24 h after rIPC...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905532/validation-of-plasma-micrornas-as-biomarkers-for-myotonic-dystrophy-type-1
#9
A Perfetti, S Greco, R Cardani, B Fossati, G Cuomo, R Valaperta, F Ambrogi, A Cortese, A Botta, A Mignarri, M Santoro, C Gaetano, E Costa, M T Dotti, G Silvestri, R Massa, G Meola, F Martelli
Non-invasive and simple to measure biomarkers are still an unmet need for myotonic dystrophy type 1 (DM1). Indeed, muscle biopsies can be extremely informative, but their invasive nature limits their application. Extracellular microRNAs are emerging humoral biomarkers and preliminary studies identified a group of miRNAs that are deregulated in the plasma or serum of small groups of DM1 patients. Here we adopted very stringent selection and normalization criteria to validate or disprove these miRNAs in 103 DM1 patients and 111 matched controls...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900989/negative-association-of-circulating-microrna-126-with-high-sensitive-c-reactive-protein-and-vascular-cell-adhesion-molecule-1-in-patients-with-coronary-artery-disease-following-percutaneous-coronary-intervention
#10
Jun-Nan Wang, You-You Yan, Zi-Yuan Guo, Ya-Juan Jiang, Lu-Lu Liu, Bin Liu
BACKGROUND: Percutaneous coronary intervention (PCI) causes endothelial damage, resulting in an inflammatory response with elevation of markers such as high-sensitive C-reactive protein (hs-CRP) and vascular cell adhesion molecule-1 (VCAM-1), which are associated with restenosis after PCI. Evidence suggests that microRNA-126 (miR-126) plays an important role in vascular inflammation, but its correlation with PCI-mediated inflammation has not been investigated. In this study, we investigated the effect of PCI on circulating miR-126 and inflammation markers such as hs-CRP and VCAM-1...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27900532/mir-148a-the-epigenetic-regulator-of-bone-homeostasis-is-increased-in-plasma-of-osteoporotic-postmenopausal-women
#11
Ajda Bedene, Simona Mencej Bedrač, Lea Ješe, Janja Marc, Peter Vrtačnik, Janez Preželj, Tomaž Kocjan, Tilen Kranjc, Barbara Ostanek
BACKGROUND: Osteoporosis is a prevalent skeletal disorder characterized by reduced bone mineral density and microarchitectural deterioration of bone tissue, resulting in bone fragility and low-trauma fractures. Imaging techniques are routinely used to detect low bone mass; however, they are unable to identify deterioration of bone quality. Recently, microRNAs have emerged as regulators of bone remodelling and potentially also as a new class of sensitive biomarkers of bone health to aid in diagnosis and treatment monitoring of osteoporosis...
November 29, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27899750/circulating-micrornas-as-novel-biomarkers-of-stenosis-progression-in-asymptomatic-carotid-stenosis
#12
Sandra Dolz, David Górriz, José Ignacio Tembl, Dolors Sánchez, Gerardo Fortea, Vera Parkhutik, Aida Lago
BACKGROUND AND PURPOSE: Progression of asymptomatic carotid artery stenosis (ACAS) in patients with >50% luminal narrowing is considered a potential risk factor for ischemic stroke; however, subclinical molecular biomarkers of ACAS progression are lacking. Recent studies suggest a regulatory function for several microRNAs (miRNAs) on the evolution of carotid plaque, but its role in ACAS progression is mostly unknown. The aim of our study was to investigate a wide miRNA panel in peripheral blood exosomes from patients with ACAS to associate circulating miRNA expression profiles with stenosis progression...
November 29, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27899485/circulating-microrna-122-is-associated-with-the-risk-of-new-onset-metabolic-syndrome-and-type-2-diabetes
#13
Peter Willeit, Philipp Skroblin, Alexander R Moschen, Xiaoke Yin, Dorothee Kaudewitz, Anna Zampetaki, Temo Barwari, Meredith Whitehead, Cristina M Ramírez, Leigh Goedeke, Noemi Rotllan, Enzo Bonora, Alun D Hughes, Peter Santer, Carlos Fernández-Hernando, Herbert Tilg, Johann Willeit, Stefan Kiechl, Manuel Mayr
MicroRNA-122 (miR-122) is abundant in the liver and involved in lipid homeostasis, but its relevance to the long-term risk of developing metabolic disorders is unknown. We therefore measured circulating miR-122 in the prospective population-based Bruneck Study (n=810; survey year: 1995). Circulating miR-122 was associated with prevalent insulin resistance, obesity, metabolic syndrome, type-2 diabetes, and an adverse lipid profile. Among 92 plasma proteins and 135 lipid subspecies quantified with mass spectrometry, it correlated inversely with zinc-alpha-2-glycoprotein and positively with afamin, complement-factor H, VLDL-associated apolipoproteins, and lipid subspecies containing monounsaturated and saturated fatty acids...
November 29, 2016: Diabetes
https://www.readbyqxmd.com/read/27896428/xci-escaping-gene-kdm5c-contributes-to-ovarian-development-via-downregulating-mir-320a
#14
Yi-Xi Sun, Yi-Xin Zhang, Dan Zhang, Chen-Ming Xu, Song-Chang Chen, Jun-Yu Zhang, Ye-Chun Ruan, Feng Chen, Run-Ju Zhang, Ye-Qing Qian, Yi-Feng Liu, Lu-Yang Jin, Tian-Tian Yu, Hai-Yan Xu, Yu-Qin Luo, Xin-Mei Liu, Fei Sun, Jian-Zhong Sheng, He-Feng Huang
Mechanisms underlying female gonadal dysgenesis remain unclarified and relatively unstudied. Whether X-chromosome inactivation (XCI)-escaping genes and microRNAs (miRNAs) contribute to this condition is currently unknown. We compared 45,X Turner Syndrome women with 46,XX normal women, and investigated differentially expressed miRNAs in Turner Syndrome through plasma miRNA sequencing. We found that miR-320a was consistently upregulated not only in 45,X plasma and peripheral blood mononuclear cells (PBMCs), but also in 45,X fetal gonadal tissues...
November 28, 2016: Human Genetics
https://www.readbyqxmd.com/read/27895035/microrna-210-enhances-fibrous-cap-stability-in-advanced-atherosclerotic-lesions
#15
Suzanne M Eken, Hong Jin, Ekaterina Chernogubova, Yuhuang Li, Nancy Simon, Changyan Sun, Greg Korzunowicz, Albert Busch, Alexandra Bäcklund, Cecilia Österholm, Anton Razuvaev, Thomas Renné, Hans-Henning Eckstein, Jaroslav Pelisek, Per Eriksson, Maria Gonzalez Diez, Ljubica P Matic Perisic, Isabel N Schellinger, Uwe Raaz, Nicholas J Leeper, Göran K Hansson, Gabrielle Paulsson-Berne, Ulf Hedin, Lars Maegdefessel
RATIONALE: In the search for markers and modulators of vascular disease, miRNAs have emerged as potent therapeutic targets. OBJECTIVE: To investigate miRNAs of clinical interest in patients with unstable carotid stenosis at risk of stroke. METHODS AND RESULTS: Utilizing patient material from the Biobank of Karolinska Endarterectomies (BiKE), we profiled miRNA expression in patients with stable vs unstable carotid plaque. A PCR-based miRNA array of plasma, sampled at the carotid lesion site, identified eight deregulated miRNAs (miR-15b, -29c, -30c/d, -150, -191, -210 and -500)...
November 28, 2016: Circulation Research
https://www.readbyqxmd.com/read/27890373/expression-and-mechanism-of-action-of-mir-196a-in-epithelial-ovarian-cancer
#16
Bo Yang, Sheng-Ze Li, Ling Ma, Hong-Li Liu, Jian Liu, Jun-Jun Shao
OBJECTIVE: To explore the expression, biological function and possible mechanism of action of microRNA molecular-196a (miR-196a) in epithelial ovarian cancer. METHODS: RT-PCR was used to detect the expression quantities of epithelial ovarian tissue, benign ovarian tissue, normal ovary epithelial tissue, ovarian cancer cell lines and miR-196a in normal ovarian epithelial cells to analyze the relationship between the expression of miR-196a and the clinical pathologic parameters of ovarian cancer...
November 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27886437/the-microrna-99-family-modulates-hepatitis-b-virus-replication-by-promoting-igf-1r-pi3k-akt-mtor-ulk1-signaling-induced-autophagy
#17
Yong Lin, Wanyu Deng, Jinke Pang, Thekla Kemper, Jing Hu, Jian Yin, Jiming Zhang, Mengji Lu
MicroRNAs (miRNAs) are small highly conserved noncoding RNAs that are widely expressed in multicellular organisms and participate in the regulation of various cellular processes including autophagy and viral replication. Evidently, miRNAs are able to modulate host gene expression and thereby inhibit or enhance hepatitis B virus (HBV) replication. The miR-99 family members are highly expressed in the liver. Interestingly, the plasma levels of miR-99 family in the peripheral blood correspond with HBV DNA loads...
November 25, 2016: Cellular Microbiology
https://www.readbyqxmd.com/read/27883184/epigenetics-in-reactive-and-reparative-cardiac-fibrogenesis-the-promise-of-epigenetic-therapy
#18
REVIEW
Asish K Ghosh, Rahul Rai, Panagiotis Flevaris, Douglas E Vaughan
Epigenetic changes play a pivotal role in the development of a wide spectrum of human diseases including cardiovascular diseases, cancer, diabetes, and intellectual disabilities. Cardiac fibrogenesis is a common pathophysiological process seen during chronic and stress-induced accelerated cardiac aging. While adequate production of extracellular matrix (ECM) proteins is necessary for post-injury wound healing, excessive synthesis and accumulation of extracellular matrix protein in the stressed or injured hearts causes decreased or loss of lusitropy that leads to cardiac failure...
November 24, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27882350/plasma-vesicle-mirnas-for-therapy-response-monitoring-in-hodgkin-lymphoma-patients
#19
Monique A J van Eijndhoven, Josée M Zijlstra, Nils J Groenewegen, Esther E E Drees, Stuart van Niele, S Rubina Baglio, Danijela Koppers-Lalic, Hans van der Voorn, Sten F W M Libregts, Marca H M Wauben, Renee X de Menezes, Jan R T van Weering, Rienk Nieuwland, Lydia Visser, Anke van den Berg, Daphne de Jong, D Michiel Pegtel
BACKGROUND. Cell-free circulating nucleic acids, including 22-nt microRNAs (miRNAs), represent noninvasive biomarkers for treatment response monitoring of cancer patients. While the majority of plasma miRNA is bound to proteins, a smaller, less well-characterized pool is associated with extracellular vesicles (EVs). Here, we addressed whether EV-associated miRNAs reflect metabolic disease in classical Hodgkin lymphoma (cHL) patients. METHODS. With standardized size-exclusion chromatography (SEC), we isolated EV-associated extracellular RNA (exRNA) fractions and protein-bound miRNA from plasma of cHL patients and healthy subjects...
November 17, 2016: JCI Insight
https://www.readbyqxmd.com/read/27882267/microvesicles-as-vehicles-for-tissue-regeneration-changing-of-the-guards
#20
REVIEW
Nikolaos Panagiotou, R Wayne Davies, Colin Selman, Paul G Shiels
PURPOSE OF REVIEW: Microvesicles (MVs) have been recognised as mediators of stem cell function, enabling and guiding their regenerative effects. RECENT FINDINGS: MVs constitute one unique size class of extracellular vesicles (EVs) directly shed from the cell plasma membrane. They facilitate cell-to-cell communication via intercellular transfer of proteins, mRNA and microRNA (miRNA). MVs derived from stem cells, or stem cell regulatory cell types, have proven roles in tissue regeneration and repair processes...
2016: Current Pathobiology Reports
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