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Serum microRNA

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https://www.readbyqxmd.com/read/28101763/mir-126-affects-brain-heart-interaction-after-cerebral-ischemic-stroke
#1
Jieli Chen, Chengcheng Cui, Xiaoping Yang, Jiang Xu, Poornima Venkat, Alex Zacharek, Peng Yu, Michael Chopp
Cardiovascular diseases are approximately three times higher in patients with neurological deficits than in patients without neurological deficits. MicroRNA-126 (MiR-126) facilitates vascular remodeling and decreases fibrosis and is emerging as an important factor in the pathogenesis of cardiovascular diseases and cerebral stroke. In this study, we tested the hypothesis that decreased miR-126 after ischemic stroke may play an important role in regulating cardiac function. Wild-type (WT), specific conditional-knockout endothelial cell miR-126 (miR-126(EC-/-)), and miR-126 knockout control (miR-126(fl/fl)) mice were subjected to distal middle cerebral artery occlusion (dMCAo) (n = 10/group)...
January 19, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28096131/nutrition-micrornas-and-human-health
#2
REVIEW
Juan Cui, Beiyan Zhou, Sharon A Ross, Janos Zempleni
MicroRNAs (miRs) hybridize with complementary sequences in mRNA and silence genes by destabilizing mRNA or preventing translation of mRNA. Over 60% of human protein-coding genes are regulated by miRs, and 1881 high-confidence miRs are encoded in the human genome. Evidence suggests that miRs not only are synthesized endogenously, but also might be obtained from dietary sources, and that food compounds alter the expression of endogenous miR genes. The main food matrices for studies of biological activity of dietary miRs include plant foods and cow milk...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28095900/post-stroke-dementia-a-comprehensive-review
#3
REVIEW
Milija D Mijajlović, Aleksandra Pavlović, Michael Brainin, Wolf-Dieter Heiss, Terence J Quinn, Hege B Ihle-Hansen, Dirk M Hermann, Einor Ben Assayag, Edo Richard, Alexander Thiel, Efrat Kliper, Yong-Il Shin, Yun-Hee Kim, SeongHye Choi, San Jung, Yeong-Bae Lee, Osman Sinanović, Deborah A Levine, Ilana Schlesinger, Gillian Mead, Vuk Milošević, Didier Leys, Guri Hagberg, Marie Helene Ursin, Yvonne Teuschl, Semyon Prokopenko, Elena Mozheyko, Anna Bezdenezhnykh, Karl Matz, Vuk Aleksić, DafinFior Muresanu, Amos D Korczyn, Natan M Bornstein
Post-stroke dementia (PSD) or post-stroke cognitive impairment (PSCI) may affect up to one third of stroke survivors. Various definitions of PSCI and PSD have been described. We propose PSD as a label for any dementia following stroke in temporal relation. Various tools are available to screen and assess cognition, with few PSD-specific instruments. Choice will depend on purpose of assessment, with differing instruments needed for brief screening (e.g., Montreal Cognitive Assessment) or diagnostic formulation (e...
January 18, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28094758/exosomes-isolated-from-serum-of-systemic-sclerosis-patients-display-alterations-in-their-content-of-profibrotic-and-antifibrotic-microrna-and-induce-a-profibrotic-phenotype-in-cultured-normal-dermal-fibroblasts
#4
Peter J Wermuth, Piera-Velazquez Sonsoles, Sergio A Jimenez
OBJECTIVES: Exosomes are lipid bilayer-bound microvesicles containing various macromolecules including numerous microRNA (miRNA). Exosomes mediate intercellular communication by fusing and releasing their macromolecular content into target cells. Here, we analysed the content of profibrotic and antifibrotic miRNAs in exosomes isolated from the serum of systemic sclerosis (SSc) patients and tested their ability to induce a profibrotic phenotype in normal human dermal fibroblasts in vitro...
January 13, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28091986/shift-of-microrna-profile-upon-glioma-cell-migration-using-patient-derived-spheroids-and-serum-free-conditions
#5
Sune Munthe, Bo Halle, Henning B Boldt, Helle Christiansen, Steffen Schmidt, Vivek Kaimal, Jessica Xu, Sonya Zabludoff, Jan Mollenhauer, Frantz R Poulsen, Bjarne W Kristensen
Glioblastoma multiforme (GBM) is the most frequent malignant primary brain tumor. A major reason for the overall median survival being only 14.6 months is migrating tumor cells left behind after surgery. Another major reason is tumor cells having a so-called cancer stem cell phenotype being therefore resistant towards traditional chemo- and radiotherapy. A group of novel molecular targets are microRNAs (miRNAs). MiRNAs are small non-coding RNAs exerting post-transcriptional regulation of gene expression. The aim of this study was to identify differentially expressed miRNAs in migrating GBM cells using serum-free stem cell conditions...
January 13, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28091585/microrna-19b-is-a-potential-biomarker-of-increased-myocardial-collagen-cross-linking-in-patients-with-aortic-stenosis-and-heart-failure
#6
Javier Beaumont, Begoña López, Susana Ravassa, Nerea Hermida, Gorka San José, Idoia Gallego, Félix Valencia, Juan José Gómez-Doblas, Eduardo de Teresa, Javier Díez, Arantxa González
This study analyzed the potential associations of 7 myocardial fibrosis-related microRNAs with the quality of the collagen network (e.g., the degree of collagen fibril cross-linking or CCL) and the enzyme lysyl oxidase (LOX) responsible for CCL in 28 patients with severe aortic stenosis (AS) of whom 46% had a diagnosis of chronic heart failure (HF). MicroRNA expression was analyzed in myocardial and blood samples. From the studied microRNAs only miR-19b presented a direct correlation (p < 0.05) between serum and myocardium...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088915/evaluation-of-microrna-stability-in-plasma-and-serum-from-healthy-dogs
#7
Lars Enelund, Lise Nikolic Nielsen, Susanna Cirera
BACKGROUND: Early and specific detection of cancer is of great importance for successful treatment of the disease. New biomarkers, like microRNAs, could improve treatment efficiency and survival ratio. In human medicine, deregulation of microRNA profiles in circulation has shown great potential as a new type of biomarker for cancer diagnostics. There are, however, few studies of circulating microRNAs in dogs. Extracellular circulating microRNAs have shown a high level of stability in human blood and other body fluids...
January 13, 2017: MicroRNA
https://www.readbyqxmd.com/read/28081568/non-lethal-endotoxin-injection-a-rat-model-of-hypercoagulability
#8
Marjory B Brooks, James R Turk, Abraham Guerrero, Padma K Narayanan, John P Nolan, Elizabeth G Besteman, Dennis W Wilson, Roberta A Thomas, Cindy E Fishman, Karol L Thompson, Heidrun Ellinger-Ziegelbauer, Jennifer B Pierson, April Paulman, Alan Y Chiang, Albert E Schultze
Systemic inflammation co-activates coagulation, which unchecked culminates in a lethal syndrome of multi-organ microvascular thrombosis known as disseminated intravascular coagulation (DIC). We studied an endotoxin-induced inflammatory state in rats to identify biomarkers of hemostatic imbalance favoring hypercoagulability. Intraperitoneal injection of LPS at 15 mg/kg body weight resulted in peripheral leukopenia and widespread neutrophilic sequestration characteristic of an acute systemic inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28079920/serum-microrna-profiles-in-patients-with-syphilis
#9
Ping Lu, Chang Fang, Qing Cheng, Wu-Jian Ke, Tao Huang, Jun Zhang, He-Ping Zheng, Bin Yang
Syphilis is an acute and chronic inflammatory disorder caused by the non-cultivatable spirochete Treponema pallidum subsp. pallidum (T. pallidum).(1,2) T. pallidum does not produce any known toxic proteins; therefore, most of the symptoms and tissue damage related to syphilis are caused by activation of the host's inflammatory and immune responses,(3) thus suggesting that host genetics play an important role in regulating the progression of syphilis infection. MiRNAs are a class of 19- to 24-nt noncoding RNAs that influence many biological systems, including development, cellular differentiation, proliferation, apoptosis, metabolism, and the immune response;(4-6) they also play crucial roles during microbial infection...
January 12, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28079796/serum-microrna-panel-for-early-diagnosis-of-the-onset-of-hepatocellular-carcinoma
#10
Ying Zhang, Tao Li, Yumin Qiu, Tao Zhang, Pengbo Guo, Xiaomin Ma, Qing Wei, Lihui Han
Unique change of circulating microRNAs (miRNAs) was recognized to occur in early oncogenesis, which conferred it the potential as biomarkers for early detection of cancer. However, its diagnostic capability for hepatocellular carcinoma (HCC) has not been fully understood. In this study, microarray analysis was applied to screen the initial candidate miRNA from both the supernatants of anoikis-resistant cellular models and the sera samples of HCC patients. The selected differentially expressed miRNAs were further verified in 115 HCC patients and 40 health controls by qRT-PCR...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28077577/extracellular-microrna-signature-of-human-helper-t-cell-subsets-in-health-and-autoimmunity
#11
Anna Torri, Donatella Carpi, Elisabetta Bulgheroni, Maria-Cristina Crosti, Monica Moro, Paola Gruarin, Riccardo L Rossi, Grazisa Rossetti, Dolores Di Vizio, Mirjam Hoxha, Valentina Bollati, Cristina Gagliani, Carlo Tacchetti, Moira Paroni, Jens Geginat, Laura Corti, Luigia Venegoni, Emilio Berti, Massimiliano Pagani, Giuseppe Matarese, Sergio Abrignani, Paola de Candia
Upon TCR stimulation, CD4+ T lymphocytes release extracellular vesicles (EVs) containing microRNAs. However, no data are available on whether human CD4+ T cell subsets release EVs containing different pattern of microRNAs. The present work aimed at filling this gap by assessing the microRNA content in EVs released upon in vitro TCR stimulation of Th1, Th17 and T regulatory (Treg) cells. Our results indicate that EVs released by Treg cells are significantly different compared to those released by the other subsets...
January 11, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28076311/biomarkers-of-acute-kidney-injury-the-pathway-from-discovery-to-clinical-adoption
#12
Kianoush Kashani, Wisit Cheungpasitporn, Claudio Ronco
Acute kidney injury (AKI) is a common complication of critical illnesses and has a significant impact on outcomes, including mortality and morbidities. Unfortunately, apart from prophylactic measures, no effective treatment for this syndrome is known. Therefore, early recognition of AKI not only can provide better opportunities for preventive interventions, but also opens many gates for research and development of effective therapeutic options. Over the last few years, several new AKI biomarkers have been discovered and validated to improve early detection, differential diagnosis, and differentiation of patients into risk groups for progressive renal failure, need for renal replacement therapy (RRT), or death...
January 11, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28074870/microrna-155-is-upregulated-in-ascites-in-patients-with-spontaneous-bacterial-peritonitis
#13
Philipp Lutz, Mohamed M Haimid, Alessandra Pohlmann, Jennifer Lehmann, Christian Jansen, Robert Schierwagen, Sabine Klein, Christian P Strassburg, Ulrich Spengler, Jonel Trebicka
MircoRNA's (miR) have been recognised as important modulators of gene expression and potential biomarkers. However, they have been rarely investigated in bio fluids apart from blood. We investigated the association of miR-125b and miR-155 with complications of cirrhosis. Ascites was prospectively collected from patients with cirrhosis undergoing paracentesis at our department. miR's were determined in the supernatant using qPCR and normalized by SV-40. Clinical parameters were assessed at paracentesis and during follow-up...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074846/novel-blood-based-microrna-biomarker-panel-for-early-diagnosis-of-chronic-pancreatitis
#14
Lei Xin, Jun Gao, Dan Wang, Jin-Huan Lin, Zhuan Liao, Jun-Tao Ji, Ting-Ting Du, Fei Jiang, Liang-Hao Hu, Zhao-Shen Li
Chronic pancreatitis (CP) is an inflammatory disease characterized by progressive fibrosis of pancreas. Early diagnosis will improve the prognosis of patients. This study aimed to obtain serum miRNA biomarkers for early diagnosis of CP. In the current study, we analyzed the differentially expressed miRNAs (DEmiRs) of CP patients from Gene Expression Omnibus (GEO), and the DEmiRs in plasma of early CP patients (n = 10) from clinic by miRNA microarrays. Expression levels of DEmiRs were further tested in clinical samples including early CP patients (n = 20), late CP patients (n = 20) and healthy controls (n = 18)...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073833/exosomal-mir-142-3p-is-increased-during-cardiac-allograft-rejection-and-augments-vascular-permeability-through-down-regulation-of-endothelial-rab11fip2-expression
#15
Ihdina Sukma Dewi, Selvi Celik, Anna Karlsson, Zsuzsanna Hollander, Karen Lam, Janet-Wilson McManus, Scott Tebbutt, Raymond Ng, Paul Keown, Robert McMaster, Bruce McManus, Jenny Öhman, Olof Gidlöf
AIMS: Exosome-mediated microRNA transfer is a recently discovered mode of cell-to-cell communication, in which microRNAs act as paracrine molecules, exerting their regulatory effects in recipient cells. T cells and endothelial cells are two main players in the mechanism of acute cellular cardiac rejection. The aim of this study was to investigate the role of exosomal microRNAs in the crosstalk between T cells and endothelial cells and its implications for the molecular mechanisms that drive acute cellular rejection in heart transplantation...
January 10, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28073028/multiplexed-detection-of-lung-cancer-biomarkers-in-patients-serum-with-cmos-compatible-silicon-nanowire-arrays
#16
Anran Gao, Xun Yang, Jing Tong, Lin Zhou, Yuelin Wang, Jianlong Zhao, Hongju Mao, Tie Li
In this work, a real-time assay for highly sensitive, label-free, multiplexed electrical detection of lung cancer biomarkers was developed by using silicon nanowire field-effect (SiNW-FET) devices. Highly responsive SiNW arrays were fabricated using a CMOS-compatible anisotropic self-stop etching technique with mass reproducibility and low cost character. The SiNW nanosensor was integrated with PDMS microfluidic device, which allows rapid analyte delivery, makes the analysis to be conducted using exceedingly small samples and enables potential multiplexed detection...
January 3, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28062296/relationship-between-circulating-microrna-30c-with-total-and-ldl-cholesterol-their-circulatory-transportation-and-effect-of-statins
#17
Ravinder Sodi, Jarlath Eastwood, Muriel Caslake, Chris J Packard, Laura Denby
BACKGROUND: Small non-coding microRNAs (miR) have important regulatory roles and are used as biomarkers of disease. We investigated the relationship between lipoproteins and circulating miR-30c, evaluated how they are transported in circulation and determined whether statins altered the circulating concentration of miR-30c. METHODS: To determine the relationship between lipoproteins and circulating miR-30c, serum samples from 79 subjects recruited from a lipid clinic were evaluated...
January 3, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28061948/levels-of-microrna-mir-16-and-mir-155-are-altered-in-serum-of-patients-with-tuberculosis-and-associate-with-responses-to-therapy
#18
Vishal Wagh, Anant Urhekar, Deepak Modi
Identification of blood biomarkers that can be useful for predicting Mycobacterium tuberculosis (M.TB) infection, effect of therapy and Multi Drug Resistant (MDR) TB infected individuals is clinically useful for combating tuberculosis epidemic. In this study, we have evaluated the levels of selected miRNAs in serum of TB and MDR TB patients. In addition, we have studied their levels in serum of patients post-therapy. The levels of 4-miRNAs (miR-16, miR-29a, miR-125b and miR-155) were measured in 30 newly diagnosed TB patients, 19 Multi Drug Resistant (MDR) TB patients, 10 patients who completed TB therapy and were TB negative...
January 2017: Tuberculosis
https://www.readbyqxmd.com/read/28061744/comprehensive-evaluation-of-extracellular-small-rna-isolation-methods-from-serum-in-high-throughput-sequencing
#19
Yan Guo, Kasey Vickers, Yanhua Xiong, Shilin Zhao, Quanhu Sheng, Pan Zhang, Wanding Zhou, Charles R Flynn
BACKGROUND: DNA and RNA fractions from whole blood, serum and plasma are increasingly popular analytes that are currently under investigation for their utility in the diagnosis and staging of disease. Small non-coding ribonucleic acids (sRNAs), specifically microRNAs (miRNAs) and their variant isoforms (isomiRs), and transfer RNA (tRNA)-derived small RNAs (tDRs) comprise a repertoire of molecules particularly promising in this regard. RESULTS: In this designed study, we compared the performance of various methods and kits for isolating circulating extracellular sRNAs (ex-sRNAs)...
January 7, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28061012/serum-microrna-profiles-as-diagnostic-biomarkers-for-hbv-positive-hepatocellular-carcinoma
#20
Hao-Tu Zhu, Rong-Bin Liu, Ya-Yong Liang, Abdulbaqi M E Hasan, Hai-Yun Wang, Qiong Shao, Zi-Chen Zhang, Jing Wang, Cai-Yun He, Fang Wang, Jian-Yong Shao
BACKGROUND & AIMS: The discovery of effective and reliable biomarkers to detect hepatitis B virus (HBV)-positive hepatocellular carcinoma (HCC) at an early stage may improve the survival of HCC. The aim of this study was to establish serum microRNA (miRNA) profiles as diagnostic biomarkers for HBV-positive HCC. METHODS: We used deep sequencing to screen serum miRNAs in a discovery cohort (n=100). Quantitative polymerase chain reaction (qPCR) assays were then applied to evaluate the expression of selected miRNAs...
January 6, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
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