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https://www.readbyqxmd.com/read/28926107/fenofibrate-reverses-changes-induced-by-high-fat-diet-on-metabolism-in-mice-muscle-and-visceral-adipocytes
#1
Flávia de Toledo Frias, Karina Cunha E Rocha, Mariana de Mendonça, Gilson Massahiro Murata, Hygor Nunes Araujo, Luís Gustavo Oliveira de Sousa, Érica de Souza, Sandro Massao Hirabara, Nayara de Carvalho Leite, Everardo Magalhães Carneiro, Rui Curi, Leonardo Reis Silveira, Alice Cristina Rodrigues
The effect of fenofibrate on the metabolism of skeletal muscle and visceral white adipose tissue of diet-induced obese (DIO) mice was investigated. C57BL/6J male mice were fed either a control or high-fat diet for eight weeks. Fenofibrate (50 mg/Kg b.w., daily) was administered by oral gavage during the last two weeks of the experimental period. Insulin-stimulated glucose metabolism in soleus muscles, glucose tolerance test, insulin tolerance test, indirect calorimetry, lipolysis of visceral white adipose tissue, expression of miR-103-3p in adipose tissue and miR-1a, miR-133a/b, miR-206, let7b-5p, miR-23b-3p, miR-29-3p, miR-143-3p in soleus muscle, genes related to glucose and fatty acid metabolism in adipose tissue and soleus muscle, and proteins (phospho-AMPKα2, Pgc1α, Cpt1b), intramuscular lipid staining, and activities of fatty acid oxidation enzymes in skeletal muscle were investigated...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28918029/activation-of-ampk-attenuated-cardiac-fibrosis-by-inhibiting-cdk2-via-p21-p27-and-mir-29-family-pathways-in-rats
#2
Hanping Qi, Yan Liu, Shuzhi Li, Yunping Chen, Lei Li, Yonggang Cao, Mingyao E, Pilong Shi, Chao Song, Baiyan Li, Hongli Sun
Cardiac fibrosis is pathological damage associated with nearly all forms of heart disease. AMP-activated protein kinase (AMPK) is an evolutionary conserved energy-sensing enzyme. Emerging evidences indicate that AMPK plays an important role in cardiac fibrosis and cell proliferation. However, less is known about the detailed mechanism of AMPK activation on cardiac fibrosis. In this study, we found the AMPK activation improved the impaired cardiac function of cardiac fibrosis rats and decreased interstitial fibrosis...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28902861/epigenetic-regulation-of-metalloproteinases-and-their-inhibitors-in-rotator-cuff-tears
#3
Mariana Ferreira Leal, Leonardo Caires Dos Santos, Adrielle Martins de Oliveira, Paulo Santoro Belangero, Eduardo Antônio Figueiredo, Carina Cohen, Felipe de Seixas Alves, Wânia Hiromi Yanaguizawa, Carlos Vicente Andreoli, Alberto de Castro Pochini, Benno Ejnisman, Marília Cardoso Smith, Maria Teresa de Seixas Alves, Moises Cohen
Rotator cuff tear is a common orthopedic condition. Metalloproteinases (MMP) and their inhibitors (TIMP) seem to play a role in the development of joint injuries and in the failure of tissue healing. However, the mechanisms of regulation of gene expression in tendons are still unknown. Epigenetic mechanisms, such as DNA methylation and microRNAs regulation, are involved in the dynamic control of gene expression. Here, the mRNA expression and DNA methylation status of MMPs (MMP1, MMP2, MMP3, MMP9, MMP13, and MMP14) and TIMPs (TIMP1-3) and the expression of miR-29 family members in ruptured supraspinatus tendons were compared with non-injured tendons of individuals without this lesion...
2017: PloS One
https://www.readbyqxmd.com/read/28883017/nf%C3%AE%C2%BAb-signaling-in-alveolar-rhabdomyosarcoma
#4
Megan M Cleary, Atiya Mansoor, Teagan Settelmeyer, Yuichi Ijiri, Katherine J Ladner, Matthew N Svalina, Brian P Rubin, Denis C Guttridge, Charles Keller
Alveolar rhabdomyosarcoma (aRMS) is a pediatric soft tissue cancer commonly associated with a chromosomal translocation that leads to the expression of a Pax3:Foxo1 or Pax7:Foxo1 fusion protein, the developmental underpinnings of which may give clues to its therapeutic approaches. In aRMS, the NFκB-YY1-miR-29 regulatory circuit is dysregulated, resulting in repression of miR-29 and loss of the associated tumor suppressor activity. To further elucidate the role of NFκB in aRMS, we first tested 55 unique sarcoma cell lines and primary cell cultures in a large-scale chemical screen targeting diverse molecular pathways...
September 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28874118/a-mirna-catalogue-and-ncrna-annotation-of-the-short-living-fish-nothobranchius-furzeri
#5
Mario Baumgart, Emanuel Barth, Aurora Savino, Marco Groth, Philipp Koch, Andreas Petzold, Ivan Arisi, Matthias Platzer, Manja Marz, Alessandro Cellerino
BACKGROUND: The short-lived fish Nothobranchius furzeri is the shortest-lived vertebrate that can be cultured in captivity and was recently established as a model organism for aging research. Small non-coding RNAs, especially miRNAs, are implicated in age dependent control of gene expression. RESULTS: Here, we present a comprehensive catalogue of miRNAs and several other non-coding RNA classes (ncRNAs) for Nothobranchius furzeri. Analyzing multiple small RNA-Seq libraries, we show most of these identified miRNAs are expressed in at least one of seven Nothobranchius species...
September 5, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28840590/right-ventricular-morphology-and-function-is-not-related-with-micrornas-and-fibrosis-markers-in-dilated-cardiomyopathy
#6
Paweł Rubiś, Justyna Totoń-Żurańska, Sylwia Wiśniowska-Śmiałek, Maria Kołton-Wróż, Paweł Wołkow, Ewa Wypasek, Lucyna Rudnicka-Sosin, Agnieszka Pawlak, Kozanecki Kozanecki, Lidia Tomkiewicz-Pająk, Piotr Podolec
BACKGROUND: The relationship between right ventricle (RV), extracellular matrix (ECM) fibrosis and fibrosis-linked, circulating microRNAs in dilated cardiomyopathy (DCM) is unknown. AIMS: To uncover the associations between serum markers of ECM metabolism and circulating microRNAs with RV morphological and functional parameters. METHODS: The study population consisted of 70 consecutive DCM patients (ejection fraction 24.4 ± 7.4%). Based on detailed echocardiographic assessment - 15 patients had normal RV, whereas 55 patients had RV dilatation (RVD) and/or systolic dysfunction (RVSD)...
August 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28750488/serum-microrna-levels-as-a-noninvasive-diagnostic-biomarker-for-the-early-diagnosis-of-hepatitis-b-virus-related-liver-fibrosis
#7
Suxia Bao, Jianming Zheng, Ning Li, Chong Huang, Mingquan Chen, Qi Cheng, Kangkang Yu, Shengshen Chen, Mengqi Zhu, Guangfeng Shi
Background/Aims: To investigate the role of selected serum microRNA (miRNA) levels as potential noninvasive biomarkers for differentiating S0-S2 (early fibrosis) from S3-S4 (late fibrosis) in patients with a chronic hepatitis B virus (HBV) infection. Methods: One hundred twenty-three treatment-naive patients with a chronic HBV infection who underwent a liver biopsy were enrolled in this study. The levels of selected miRNAs were measured using a real-time quantitative polymerase chain reaction assay...
July 28, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28745139/role-of-mir-29-as-marker-of-risk-of-acute-rejection-after-heart-transplant
#8
S Guo, X Guo, S Wang, Q Nie, G Ni, C Wang
BACKGROUND: Circulating miRNAs are potential biomarkers of the pathogenesis of certain diseases and in monitoring therapeutic responses. We hypothesized that serum miR-29 can determine risk of acute cardiac allograft rejection. METHODS: Peripheral vein blood was collected from 50 healthy volunteers and 506 patients during post-transplant surveillance. Serum cardiac troponin I (cTnI) and miR-29 was detected by ELISA and qRT-PCR assay respectively. Rejection risk was defined as International Society of Heart and Lung Transplant score from leukocyte infiltration of an endomyocardial biopsy...
July 26, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28710399/downregulation-of-blood-serum-microrna-29-family-in-patients-with-parkinson-s-disease
#9
Xiaochen Bai, Yilin Tang, Mei Yu, Lei Wu, Fengtao Liu, Jianliang Ni, Zishan Wang, Jinghui Wang, Jian Fei, Wei Wang, Fang Huang, Jian Wang
There is currently no reliable and easily applicable diagnostic marker for Parkinson's disease (PD). The aims of the present study were to compare the expression profiles of the microRNA29 family (miR-29s) in blood serum from patients with PD with healthy controls and to clarify whether the expression of miR-29s is correlated with disease severity, duration or L-dopa therapy and whether expression depends on the gender and age of patients. The levels of blood serum miR-29s in 80 patients with PD and 80 unaffected controls were assessed by reverse transcription-quantitative real-time PCR...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708589/micrornas-with-prognostic-significance-in-osteosarcoma-a-systemic-review-and-meta-analysis
#10
Dong Cheng, Xubin Qiu, Ming Zhuang, Chenlei Zhu, Hongjun Zou, Zhiwei Liu
INTRODUCTION: This study aimed to elucidate the prognostic value of microRNAs (miRNAs) in patients with osteosarcoma. MATERIALS AND METHODS: Studies were recruited by searching PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang data-bases (final search update conducted January 2017). Eligible studies were identified and the quality was assessed using multiple search strategies. RESULTS: A total of 55 articles that investigated the correlation between miRNA expression and either patient survival or disease recurrence in osteosarcoma was initially identified...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28701793/the-mir-29-transcriptome-in-endocrine-sensitive-and-resistant-breast-cancer-cells
#11
Penn Muluhngwi, Negin Alizadeh-Rad, Stephany L Vittitow, Ted S Kalbfleisch, Carolyn M Klinge
Aberrant microRNA expression contributes to breast cancer progression and endocrine resistance. We reported that although tamoxifen stimulated miR-29b-1/a transcription in tamoxifen (TAM)-resistant breast cancer cells, ectopic expression of miR-29b-1/a did not drive TAM-resistance in MCF-7 breast cancer cells. However, miR-29b-1/a overexpression significantly repressed TAM-resistant LCC9 cell proliferation, suggesting that miR-29b-1/a is not mediating TAM resistance but acts as a tumor suppressor in TAM-resistant cells...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680559/the-roles-of-microrna-families-in-hepatic-fibrosis
#12
REVIEW
Xue-Ping Jiang, Wen-Bing Ai, Lin-Yan Wan, Yan-Qiong Zhang, Jiang-Feng Wu
When hepatocytes are damaged severely, a variety of signaling pathways will be triggered by inflammatory factors and cytokines involving in the process of hepatic fibrosis. The microRNA (miRNA) family consists of several miRNAs which have the potential for synergistic regulation of these signaling pathways. However, it is poor to understand the roles of miRNA family as a whole in hepatic fibrosis. Increasing studies have suggested several miRNA families are related with activation of hepatic stellate cells and hepatic fibrosis through cooperatively regulating certain signaling pathways...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28664184/microrna-29-mediates-a-novel-negative-feedback-loop-to-regulate-scap-srebp-1-and-lipid-metabolism
#13
Peng Ru, Deliang Guo
The membrane-bound transcription factors, SREBPs (sterol regulatory element-binding proteins), play a central role in regulating lipid metabolism. The transcriptional activation of SREBPs requires the key protein SCAP (SREBP-cleavage activating protein) to translocate their precursors from the endoplasmic reticulum to the Golgi for subsequent proteolytic activation, a process tightly regulated by a cholesterol-mediated negative feedback loop. Our previous work showed that the SCAP/SREBP-1 pathway is significantly upregulated in human glioblastoma (GBM), the most deadly brain cancer, and that glucose-mediated N-glycosylation of SCAP is a prerequisite step for SCAP/SREBP trafficking...
2017: RNA & Disease
https://www.readbyqxmd.com/read/28650464/%C3%AE-catenin-downregulates-dicer-to-promote-ovarian-cancer-metastasis
#14
S K Y To, A S C Mak, Y M Eva Fung, C-M Che, S-S Li, W Deng, B Ru, J Zhang, A S T Wong
Ovarian cancer is a nearly uniform lethal disease and its highly aggressive metastatic phenotype portends a poor prognosis. Lack of a well-controlled, relevant experimental model has been a major obstacle to identifying key molecules causing metastasis. Here we describe the creation of a new isogenic model of spontaneous human ovarian cancer metastasis exhibiting opposite phenotypes-highly metastatic (HM) and non-metastatic (NM)-both in vitro and in vivo. HM was unique in its ability to metastasize consistently to the peritoneum, mimicking the major dissemination route of human ovarian cancer...
June 26, 2017: Oncogene
https://www.readbyqxmd.com/read/28642310/metabolomics-analysis-identifies-sex-associated-metabotypes-of-oxidative-stress-and-the-autotaxin-lysopa-axis-in%C3%A2-copd
#15
Shama Naz, Johan Kolmert, Mingxing Yang, Stacey N Reinke, Muhammad Anas Kamleh, Stuart Snowden, Tina Heyder, Bettina Levänen, David J Erle, C Magnus Sköld, Åsa M Wheelock, Craig E Wheelock
Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease and a leading cause of mortality and morbidity worldwide. The aim of this study was to investigate the sex dependency of circulating metabolic profiles in COPD.Serum from healthy never-smokers (healthy), smokers with normal lung function (smokers), and smokers with COPD (COPD; Global Initiative for Chronic Obstructive Lung Disease stages I-II/A-B) from the Karolinska COSMIC cohort (n=116) was analysed using our nontargeted liquid chromatography-high resolution mass spectrometry metabolomics platform...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28641547/recent-advances-on-the-role-of-micrornas-in-both-insulin-resistance-and-cancer
#16
Adele Vivacqua, Paola De Marco, Antonino Belfiore, Marcello Maggiolini
BACKGROUND: Insulin resistance is a pathological condition characterized by the failure of target cells to uptake and metabolizes glucose in response to insulin. In particular, the elevated concentrations of glucose, insulin and free insulin growth factor-1, which result from insulin resistance, may generate a pro-inflammatory and pro-tumorigenic state. These alterations may underlie the increased risk to develop various types of cancer as well as the worse cancer prognosis observed in obese and diabetic patients...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28620300/novel-anti-fibrotic-therapies
#17
REVIEW
Benita L McVicker, Robert G Bennett
Fibrosis is a major player in cardiovascular disease, both as a contributor to the development of disease, as well as a post-injury response that drives progression. Despite the identification of many mechanisms responsible for cardiovascular fibrosis, to date no treatments have emerged that have effectively reduced the excess deposition of extracellular matrix associated with fibrotic conditions. Novel treatments have recently been identified that hold promise as potential therapeutic agents for cardiovascular diseases associated with fibrosis, as well as other fibrotic conditions...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28617563/regulatory-mechanism-of-mir-29-over-tgf-%C3%AE-1-and-col1-in-scar-cells
#18
S Bi, C Cao, L-L Chai, S-R Li, D-Y Yang
OBJECTIVE: To study the regulatory mechanism of miR-29 over TGF-β1 and COL1 in scar cells. PATIENTS AND METHODS: 5 clinical cases of hypertrophic scar (HS) skin and adjacent normal skin tissues were separated into fibroblast for primary culture and subculture before being observed morphologically and standard HE staining under an ordinary optical microscope. RT-PCR method was applied to test the expression level of miR-29, TGF-β1, and COL1 mRNA. ELISA method was applied to test the expression level of extracellular matrix COL1, fibronectin (FN) and α-SMA...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28610780/analysis-of-transcription-factors-micrornas-and-cytokines-involved-in-t-lymphocyte-differentiation-in-patients-with-tuberculosis-after-directly-observed-treatment-short-course
#19
Nancy Elizabeth Corral-Fernández, Juan Diego Cortes-García, Rivas-Santiago Bruno, Silvia Romano-Moreno, Susanna E Medellín-Garibay, Martín Magaña-Aquino, Raúl A Salazar-González, Roberto González-Amaro, Diana Patricia Portales-Pérez
Tuberculosis (Tb) is an infectious disease in which the immune system plays an important role. MicroRNAs are involved in the development and maintenance of CD4 + T lymphocyte subpopulations. miR-326 regulates the differentiation to Th17 cells and miR-29 correlates with the Th1 response. The aim of this study was to determine the role of microRNAs, Transcription Factors, and cytokines in Th differentiation before and after the directly observed treatment short-course (DOTS). Peripheral blood mononuclear cells and serum from Tb patients were collected at times 0 (before therapy), 2 (after the intensive phase), and 6 months (after the holding phase)...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28584629/role-of-the-microrna-29-family-in-fibrotic-skin-diseases
#20
Duygu Harmanci, Erdogan Pekcan Erkan, Ayse Kocak, Gul Guner Akdogan
Fibrotic skin diseases are characterized by the accumulation of collagen. The hallmarks of fibrotic skin diseases are unbalanced fibroblast proliferation and differentiation, extracellular matrix production and transforming growth factor-β signalling. Numerous studies have investigated the possibility that microRNAs (miRNAs or miRs) are involved in the pathogenesis of certain fibrotic diseases, including skin, heart, lung and liver diseases. miRNAs are a class of small non-coding RNAs, which modify gene expression by binding to target messenger RNA (mRNA) and blocking the translation or inducing the degradation of target mRNA...
June 2017: Biomedical Reports
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