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Diabetes mirna

XinWang Zhu, CongXiao Zhang, QiuLing Fan, XiaoDan Liu, Gang Yang, Yi Jiang, LiNing Wang
BACKGROUND Diabetic nephropathy (DN) is the most lethal diabetic microvascular complication; it is a major cause of renal failure, and an increasingly globally prominent healthcare problem. MATERIAL AND METHODS To identify susceptible microRNAs for the pathogenesis of DN and the targets of losartan treatment, microRNA arrays were employed to survey the glomerular microRNA expression profiles of KKAy mice treated with or without losartan. KKAy mice were assigned to either a losartan-treated group or a non-treatment group, with C57BL/6 mice used as a normal control...
October 22, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Nina Holland
Environmental research and public health in the 21st century face serious challenges such as increased air pollution and global warming, widespread use of potentially harmful chemicals including pesticides, plasticizers, and other endocrine disruptors, and radical changes in nutrition and lifestyle typical of modern societies. In particular, exposure to environmental and occupational toxicants may contribute to the occurrence of adverse birth outcomes, neurodevelopmental deficits, and increased risk of cancer and other multifactorial diseases such as diabetes and asthma...
October 21, 2016: Reviews on Environmental Health
Juan Feng, Wanli Xing, Lan Xie
MicroRNAs (miRNAs), a class of endogenous small noncoding RNAs in eukaryotes, have been recognized as significant regulators of gene expression through post-transcriptional mechanisms. To date, >2000 miRNAs have been identified in the human genome, and they orchestrate a variety of biological and pathological processes. Disruption of miRNA levels correlates with many diseases, including diabetes mellitus, a complex multifactorial metabolic disorder affecting >400 million people worldwide. miRNAs are involved in the pathogenesis of diabetes mellitus by affecting pancreatic β-cell functions, insulin resistance, or both...
October 17, 2016: International Journal of Molecular Sciences
Eun Hee Koh, Yong Chen, David A Bader, Mark P Hamilton, Bin He, Brian York, Shingo Kajimura, Sean E McGuire, Sean M Hartig
The acquisition of beige adipocyte features by white fat cells corresponds to protection against obesity-induced metabolic diseases in humans and animal models of type 2 diabetes. In adipose tissue, expression of the E2-SUMO ligase Ubiquitin Carrier Protein 9 (Ubc9) is positively correlated with markers of insulin resistance and corresponds with impaired browning of human white adipocytes. However, the molecular regulation of Ubc9 expression in adipocytes and other cells remains unclear. In this study, we demonstrated the mRNA and protein expression of Ubc9 are regulated by the microRNA miRNA-30a (miR-30a) in human subcutaneous adipocytes...
October 10, 2016: Journal of Biological Chemistry
Yutong Su, Xiuli Jiang, Yanli Li, Feng Li, Yulong Cheng, Ying Peng, Dalong Song, Jie Hong, Guang Ning, Yanan Cao, Weiqing Wang
The mechanism underlying the increased susceptibility of type 2 diabetes in offspring of maternal malnutrition is poorly determined. Here we tested the hypothesis that functional microRNAs (miRNAs) mediated the maternal low protein (LP) isocaloric diet induced pancreatic β-cell impairment. We performed miRNA profiling in the islets from offspring of LP and control diet mothers to explore the potential functional miRNAs responsible for β-cell dysfunction. We found that LP offspring exhibited impaired glucose tolerance due to decreased β-cell mass and insulin secretion...
October 18, 2016: Endocrinology
Susan J Allison
No abstract text is available yet for this article.
October 17, 2016: Nature Reviews. Nephrology
Maryam Kaviani, Negar Azarpira, Mohammad Hossein Karimi, Ismail Al-Abdullah
Cell-based therapies suggest novel treatments to overcome the complication of the current therapeutic approaches in diabetes mellitus type 1. Replacement of the destroyed pancreatic islet β-cells by appropriate alternative cells needs an efficient approach to differentiate the cells into viable and functional insulin producing cells. Small non-coding RNA molecules, MicroRNAs (miRNA), have critical roles in post-transcriptional regulation of gene expression. Therefore, they can direct the cells toward β-cell like cells and control islet β-cell development...
October 15, 2016: Cell Biology International
Fabio Arturo Grieco, Guido Sebastiani, Jonas Juan-Mateu, Olatz Villate, Laura Marroqui, Laurence Ladrière, Ksenya Tugay, Romano Regazzi, Marco Bugliani, Piero Marchetti, Francesco Dotta, Décio L Eizirik
Type 1 Diabetes is an autoimmune disease leading to beta cell destruction. MicroRNAs (miRNAs) are small non-coding RNAs that control gene expression and organ formation. They participate in the pathogenesis of several autoimmune diseases, but the nature of miRNAs contributing to beta cell death in T1D and their target genes remain to be clarified.We performed a miRNA expression profile on human islet preparations exposed to the cytokines IL-1β+IFN-γ. Confirmation of miRNAs and target genes modification in human beta cells was performed by real-time qPCR...
October 13, 2016: Diabetes
Tanes I Lima, Hygor N Araujo, Eveline S Menezes, Carlos H Sponton, Michel B Araújo, Lucas H M Bomfim, André L Queiroz, Madla A Passos, Thais Amaral E Sousa, Sandro M Hirabara, Amanda R Martins, Helena C L B Sampaio, Alice Rodrigues, Rui Curi, Everardo M Carneiro, Antônio C Boschero, Leonardo R Silveira
Mitochondria play a critical role in several cellular processes and cellular homeostasis. Mitochondrion dysfunction has been correlated with numerous metabolic diseases such as obesity and type 2 diabetes. MicroRNAs are non-coding RNAs that have emerged as key regulators of cell metabolism. The microRNAs act as central regulators of metabolic gene networks by leading to the degradation of their target messenger RNA or repression of protein translation. In addition, vesicular and non-vesicular circulating miRNAs exhibit a potential role as mediators of the cross-talk between the skeletal muscle and other tissues/organs...
October 13, 2016: Journal of Cellular Physiology
L Dioni, S Sucato, V Motta, S Iodice, L Angelici, C Favero, T Cavalleri, L Vigna, B Albetti, S Fustinoni, P Bertazzi, A Pesatori, V Bollati
BACKGROUND/OBJECTIVES: Epidemiological studies suggest a link between chromium (Cr) status and cardiovascular disease. Increased urinary excretion of Cr was reported in subjects with diabetes compared with non-diabetic controls and those with non-diabetic insulin resistance. Epigenetic alterations have been linked to the presence of Cr, and microRNA (miRNA) expression has been implicated in the pathogenesis of metabolic diseases and cardiovascular diseases (CVDs). We investigated the association between Cr excretion and miRNA expression in leukocytes from obese subjects...
October 12, 2016: European Journal of Clinical Nutrition
Archana Prabahar, Jeyakumar Natarajan
Autoimmune diseases (AIDs) are incurable but suppressible diseases whose molecular mechanisms are yet to be elucidated. In this work, we selected five systemic autoimmune diseases such as Rheumatoid Arthritis (RA), Type 1 Diabetes (T1D), Inflammatory Bowel Disease (IBD), Autoimmune Thyroid Disease (ATD) and Systemic Lupus Erythematosus (SLE) and integrated their heterogeneous data such as miRNA, transcription factor (TF), target genes and protein-protein interactions involved in these AIDs to understand their roles at different functional levels of miRNA such as transcription initiation, gene regulatory network formation and post transcriptional regulation...
October 8, 2016: Journal of Immunological Methods
Le Zhang, Siyi He, Fan Yang, Hua Yu, Wei Xie, Qian Dai, Di Zhang, Xiaoqin Liu, Shiwen Zhou, Kebin Zhang
The purpose of this study was to investigate the therapeutic effects of hyperoside (Hyp) on glomerulosclerosis in diabetic nephropathy and its underlying mechanisms. Blood glucose, kidney mass, and renal function of mice were measured. Renal morphology was observed using hematoxylin and eosin, periodic acid - Schiff's, and Masson's trichrome stain. Fibronectin (FN) and collagen IV (COL IV) in kidney were determined by Western blot and immunohistochemical studies. Matrix metalloproteinases (MMP)-2 and -9 and tissue inhibitors of metalloproteinase (TIMP)-1 in renal tissues were detected on both the mRNA and protein levels...
July 19, 2016: Canadian Journal of Physiology and Pharmacology
Federica Barutta, Graziella Bruno, Giuseppe Matullo, Nish Chaturvedi, Serena Grimaldi, Casper Schalkwijk, Coen D Stehouwer, John H Fuller, Gabriella Gruden
AIMS: Increasing evidence suggests a potential role of circulating miRNAs as clinical biomarkers, and loss of miRNA-126 has been proposed as a predictor of type 2 diabetes onset. However, a systematic analysis of circulating miRNAs in type 1 diabetic patients with micro-/macrovascular complications has not yet been performed. METHODS: A cross-sectional nested case-control study from the EURODIAB Prospective Complications Study of 455 type 1 diabetic patients was performed...
October 1, 2016: Acta Diabetologica
Ya Wang, Ying Le, Jun-Yu Xue, Zong-Ji Zheng, Yao-Ming Xue
TGF-β1-induced epithelial to mesenchymal transition (EMT) process of tubular epithelial cells plays a leading role in the occurrence and progression of renal fibrosis as seen in diabetic nephropathy (DN). High mobility group AT-hook 2 (HMGA2) is considered to be involved in TGF-β1-mediated EMT via multifactorial mechanisms. Specific microRNAs (miRNAs) are closely associated with EMT, and here we focused on let-7d miRNA as a regulator of HMGA2. This study aims to investigate the effects of HMGA2 on EMT process induced by TGF-β1 using small interfering RNA (siRNA) technique in vitro, and further explore the potential role of let-7d miRNA during renal fibrosis in DN...
October 28, 2016: Biochemical and Biophysical Research Communications
Joy N Jones Buie, Andrew J Goodwin, James A Cook, Perry V Halushka, Hongkuan Fan
Coronary artery disease and atherosclerosis are complex pathologies that develop over time due to genetic and environmental factors. Differential expression of miRNAs has been identified in patients with coronary artery disease and atherosclerosis, however, their association with cardiovascular disease risk factors, including hyperlipidemia, hypertension, obesity, diabetes, lack of physical activity and smoking, remains unclear. This review examines the role of miRNAs as either biomarkers or potential contributors to the pathophysiology of these aforementioned risk factors...
September 22, 2016: Atherosclerosis
Luisa Montanini, Arianna Smerieri, Mariolina Gullì, Francesca Cirillo, Giovanna Pisi, Chiara Sartori, Sergio Amarri, Sergio Bernasconi, Nelson Marmiroli, Maria E Street
CONTEXT: Cystic Fibrosis Related Diabetes (CFRD) is the most frequent and severe co-morbidity in CF. Presentation and severity are quite variable. OBJECTIVE: To investigate changes in miRNAs due to CFTR malfunctioning in vitro and to study the circulating levels of selected miRNAs in serum samples from patients, and assess their relationships in different age-groups with genotype, glucose tolerance state and at onset of CFRD. Design/Setting/Patients/Interventions: Transcriptional profiling of all known miRNAs in CFBE41o- cells, in their normal counterparts (16HBE14o- cells), and in IB3 cells was performed...
September 30, 2016: Journal of Clinical Endocrinology and Metabolism
Feng Pan, Jinwei You, Yuan Liu, Xuefeng Qiu, Wen Yu, Jiehua Ma, Lianjun Pan, Aixia Zhang, Qipeng Zhang
To better understand the molecular aetiology of type 2 diabetes mellitus-associated erectile dysfunction (T2DMED) and to provide candidates for further study of its diagnosis and treatment, this study was designed to investigate differentially expressed microRNAs (miRNAs) in the corpus cavernosum (CC) of mice with T2DMED using GeneChip array techniques (Affymetrix miRNA 4.0 Array) and to predict target genes and signalling pathways regulated by these miRNAs based on bioinformatic analysis using TargetScan, the DAIAN web platform and DAVID...
September 28, 2016: Molecular Genetics and Genomics: MGG
Franceli Rodrigues Kulcheski, Ana Paula Christoff, Rogerio Margis
Circular RNAs (circRNAs) are a class of non-coding RNAs (ncRNAs) that are involved in transcriptional and posttranscriptional gene expression regulation. The development of deep sequencing of ribosomal RNA (rRNA)-depleted RNA libraries, associated with improved computational tools, has provided the identification of several new circRNAs in all sorts of organisms, from protists, plants and fungi to animals. Recently, it was discovered that endogenous circRNAs can work as microRNA (miRNA) sponges. This means that the circRNAs bind to miRNAs and consequently repress their function, providing a new model of action for this class of ncRNA, as well as indicating another mechanism that regulates miRNA activity...
November 20, 2016: Journal of Biotechnology
Yuan Li, Tianyou Luo, Liang Wang, Jing Wu, Shixin Guo
MicroRNAs (miRNAs or miRs), a group of small non-coding RNAs, have been demonstrated to play key roles in various physicological processes and diseases, including diabetes, the most common metabolic disorder. However, the underlying mechanisms remains largely unknown. In this study, we aimed to investigate the role of miR‑19a‑3p in diabetes. The results of RT-qPCR demonstrated that the level of miR‑19a‑3p was significantly decreased in the diabetic patients, and that the decreased miR‑50a-5p level was significantly associated with a high concentration of blood glucose...
September 23, 2016: International Journal of Molecular Medicine
Xuwei Hou, Wei Wu, Bo Yin, Xuefeng Liu, Fu Ren
OBJECTIVE: Glucose-stimulated insulin secretion (GSIS) is known to be essential in the control of metabolic fuel homeostasis, though the molecular mechanisms involved remain unclear. METHODS: MicroRNA (miRNA)-463-3p and ATP-binding cassette A4 (ABCG4) expression was analyzed by real-time PCR, and the potential role of miRNA-463-3p or ABCG4 was evaluated by overexpressing or silencing such miRNA or genes. RESULTS: The miRNA-463-3p inhibited GSIS without affecting cell viability...
September 24, 2016: Obesity
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