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miRNA diabetes

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https://www.readbyqxmd.com/read/28721157/micrornas-and-metabolic-disorders-where-are-we-heading
#1
Agnieszka Sliwinska, Marta A Kasinska, Jozef Drzewoski
MicroRNAs (miRNAs, miRs) are short, non-coding molecules engaged in normal functioning of eukaryotic cells, as negative regulators of gene expression. Since the first discovery of miRNA in the early 1990s, hundreds of different miRNAs and their targets have been identified. A growing number of studies have aimed to search for microRNAs which have a key role in the regulation of insulin signaling and metabolic homeostasis. Recent evidence indicates that dysregulation of miRNA expression is involved in the development of various diseases, including type 2 diabetes mellitus (T2DM), obesity and cardiovascular diseases...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28713945/mir%C3%A2-433-protects-pancreatic-%C3%AE-cell-growth-in-high%C3%A2-glucose-conditions
#2
Min Wang
Pancreatic β cell dysfunction is a key characteristic in the pathogenesis of diabetes mellitus (DM). MicroRNAs (miRNAs) have been identified to serve a role in DM pathogenesis, but how specific miRNAs regulate glucose‑stimulated β cell functions remain unclear. The present study aimed to explore the effects of miR‑433 on cell growth under high‑glucose culture conditions and to determine the possible mechanisms involved. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) analysis was performed to detect the expression levels of miRNAs in Min‑6 pancreatic β cells cultured in high‑glucose medium, which revealed that miR‑433 was significantly downregulated...
July 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28710412/exosomes-derived-from-pancreatic-cancer-cells-induce-insulin-resistance-in-c2c12-myotube-cells-through-the-pi3k-akt-foxo1-pathway
#3
Lantian Wang, Bo Zhang, Wen Zheng, Muxing Kang, Qing Chen, Wenjie Qin, Chao Li, Yuefeng Zhang, Yingkuan Shao, Yulian Wu
Prospective epidemiological studies have consistently suggested that pancreatic cancer-associated new-onset diabetes mellitus (PC-DM) represents a potential platform for early diagnose of pancreatic cancer (PC). Despite the studies performed, the mechanism behind this phenomenon remains ambiguous. In this study, we explored the effects of two types of exosomes released by murine pancreatic cancer and ductal epithelial cells on murine skeletal muscle cells. The results show that PC-derived exosomes can readily enter C2C12 myotubes, triggering lipidosis and glucose intake inhibition...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28709971/epigenetic-mechanisms-underlying-the-toxic-effects-associated-with-arsenic-exposure-and-the-development-of-diabetes
#4
REVIEW
Fazlullah Khan, Saeideh Momtaz, Kamal Niaz, Fatima Ismail Hassan, Mohammad Abdollahi
BACKGROUND: Exposure to inorganic arsenic (iAs) is a major threat to the human health worldwide. The consumption of arsenic in drinking water and other food products is associated with the risk of development of type-2 diabetes mellitus (T2DM). The available experimental evidence indicates that epigenetic alterations may play an important role in the development of diseases that are linked with exposure to environmental toxicants. iAs seems to be associated with the epigenetic modifications such as alterations in DNA methylation, histone modifications, and micro RNA (miRNA) abundance...
July 11, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28709769/exploring-the-mitochondrial-microrna-import-pathway-through-polynucleotide-phosphorylase-pnpase
#5
Danielle L Shepherd, Quincy A Hathaway, Mark V Pinti, Cody E Nichols, Andrya J Durr, Shruthi Sreekumar, Kristen M Hughes, Seth M Stine, Ivan Martinez, John M Hollander
Cardiovascular disease is the primary cause of mortality for individuals with type 2 diabetes mellitus. During the diabetic condition, cardiovascular dysfunction can be partially attributed to molecular changes in the tissue, including alterations in microRNA (miRNA) interactions. MiRNAs have been reported in the mitochondrion and their presence may influence cellular bioenergetics, creating decrements in functional capacity. In this study, we examined the roles of Argonaute 2 (Ago2), a protein associated with cytosolic and mitochondrial miRNAs, and Polynucleotide Phosphorylase (PNPase), a protein found in the inner membrane space of the mitochondrion, to determine their role in mitochondrial miRNA import...
July 11, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28706953/differentially-expressed-micrornas-in-the-development-of-early-diabetic-retinopathy
#6
Qiaoyun Gong, Jia'nan Xie, Yang Liu, Ying Li, Guanfang Su
The pathological mechanisms of diabetic retinopathy (DR), a leading cause of blindness in adults with diabetes mellitus, remain incompletely understood. Because microRNAs (miRNAs) represent effective DR therapeutic targets, we identified aberrantly expressed miRNAs associated with cellular dysfunction in early DR and detected their potential targets. We exposed human retinal endothelial cells (HRECs) and a cell line of retinal pigment epithelial (RPE) cells to high glucose (25 mmol/L, 1-7 days) to mimic DR progression and used streptozotocin-injected rats (4-8 weeks) for an in vivo diabetes model...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28704935/entrainment-of-breast-cell-lines-results-in-rhythmic-fluctuations-of-micrornas
#7
Rafael Chacolla-Huaringa, Jorge Moreno-Cuevas, Victor Trevino, Sean-Patrick Scott
Circadian rhythms are essential for temporal (~24 h) regulation of molecular processes in diverse species. Dysregulation of circadian gene expression has been implicated in the pathogenesis of various disorders, including hypertension, diabetes, depression, and cancer. Recently, microRNAs (miRNAs) have been identified as critical modulators of gene expression post-transcriptionally, and perhaps involved in circadian clock architecture or their output functions. The aim of the present study is to explore the temporal expression of miRNAs among entrained breast cell lines...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28702332/dysregulation-of-a-novel-mir-23b-27b-p53-axis-impairs-muscle-stem-cell-differentiation-of-humans-with-type-2-diabetes
#8
Tora I Henriksen, Peter K Davidsen, Maria Pedersen, Heidi S Schultz, Ninna S Hansen, Therese J Larsen, Allan Vaag, Bente K Pedersen, Søren Nielsen, Camilla Scheele
OBJECTIVE: MicroRNAs (miRNAs) are increasingly recognized as fine-tuning regulators of metabolism, and are dysregulated in several disease conditions. With their capacity to rapidly change gene expression, miRNAs are also important regulators of development and cell differentiation. In the current study, we describe an impaired myogenic capacity of muscle stem cells isolated from humans with type 2 diabetes (T2DM) and assess whether this phenotype is regulated by miRNAs. METHODS: We measured global miRNA expression during in vitro differentiation of muscle stem cells derived from T2DM patients and healthy controls...
July 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28695984/triptolide-prevents-extracellular-matrix-accumulation-in-experimental-diabetic-kidney-disease-by-targeting-microrna-137-notch1-pathway
#9
Fei Han, Shanshan Wang, Yunpeng Chang, Chunjun Li, Juhong Yang, Zhe Han, Baocheng Chang, Bei Sun, Liming Chen
MicroRNAs (miRNAs) are involved in multiple biological functions via suppressing target genes. Triptolide is a monomeric compound isolated from a traditional Chinese herb, which exerts protective roles in many kinds of glomerular diseases. However, our understanding of the triptolide effect on miRNAome is still limited. In this study, we found that triptolide significantly decreased albuminuria and improved glomerulosclerosis in rats with diabetic kidney disease (DKD). And triptolide also inhibited extracellular matrix (ECM) protein accumulation and the notch1 pathway activation under diabetic conditions...
July 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28693142/microrna-4530-promotes-angiogenesis-by-targeting-vash1-in-breast-carcinoma-cells
#10
Tao Zhang, Li Jing, Hong Li, Linchao Ding, Dongdong Ai, Jianxin Lyu, Lianjin Zhong
The results of our previous study revealed that microRNA (miRNA/miR)-4530 was upregulated in the serum of patients with diabetic retinopathy. The TargetScan miRNA database was used to identify potential targets of miR-4530 and vasohibin-1 (VASH1) was predicted as one of the targets. The results of our previous study demonstrated that miR-4530 was able to promote angiogenesis in human umbilical vein endothelial cells. Therefore, suppressing miR-4530 may be a potentially novel approach towards inhibiting tumor angiogenesis...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28683564/noncoding-rnas-in-the-vascular-system-response-to-oxidative-stress
#11
Paola Fuschi, Biagina Maimone, Carlo Gaetano, Fabio Martelli
SIGNIFICANCE: Redox homeostasis plays a pivotal role in vascular cell function and its imbalance has a causal role in a variety of vascular diseases. Accordingly, the response of mammalian cells to redox cues requires precise transcriptional and post-transcriptional modulation of gene expression patterns. Recent Advances: Mounting evidence shows that non-protein-coding RNAs (ncRNAs) are important for the functional regulation of most, if not all, cellular processes and tissues. Not surprisingly, a prominent role of ncRNAs has been identified also in the vascular system response to oxidative stress...
July 6, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28680477/human-pluripotent-stem-cell-differentiation-to-functional-pancreatic-cells-for-diabetes-therapies-innovations-challenges-and-future-directions
#12
REVIEW
Elena F Jacobson, Emmanuel S Tzanakakis
Recent advances in the expansion and directed pancreatogenic differentiation of human pluripotent stem cells (hPSCs) have intensified efforts to generate functional pancreatic islet cells, especially insulin-secreting β-cells, for cell therapies against diabetes. However, the consistent generation of glucose-responsive insulin-releasing cells remains challenging. In this article, we first present basic concepts of pancreatic organogenesis, which frequently serves as a basis for engineering differentiation regimens...
2017: Journal of Biological Engineering
https://www.readbyqxmd.com/read/28678424/the-metabolic-syndrome-alters-the-mirna-signature-of-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#13
Yu Meng, Alfonso Eirin, Xiang-Yang Zhu, Hui Tang, Pritha Chanana, Amir Lerman, Andre J Van Wijnen, Lilach O Lerman
Autologous transplantation of mesenchymal stem cells (MSCs) is a viable option for the treatment of several diseases. Evidence indicates that MSCs release extracellular vesicles (EVs) and that EVs shuttle miRNAs to damaged parenchymal cells to activate an endogenous repair program. We hypothesize that comorbidities may interfere with the packaging of cargo in MSC-derived EVs. Therefore, we examined whether metabolic syndrome (MetS) modulates the miRNA content packed within MSC-derived EVs. MSCs were collected from swine abdominal adipose tissue after 16 weeks of lean or obese diet (n = 7 each)...
July 5, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28677735/mir%C3%A2-199a%C3%A2-3p-is-involved-in-the-pathogenesis-and-progression-of-diabetic-neuropathy-through-downregulation-of-serpine2
#14
Ying-Bo Li, Qun Wu, Jie Liu, Yong-Zhi Fan, Kai-Feng Yu, Yi Cai
The present study aimed to investigate the expression status of miRNA‑199a‑3p in patients with diabetic neuropathy (DN) and the mechanism by which this miRNA is involved in the genesis of DN. The expression of miRNA‑199a‑3p in plasma of peripheral blood was compared between patients with diabetes and a family history of diabetes and control volunteers by reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR); in 60 diabetes patients, 45 (75%) demosntrated upregulated miR‑199a‑3p expression compared with control volunteer plasma...
June 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28674658/confluence-does-not-affect-the-expression-of-mir-375-and-its-direct-targets-in-rat-and-human-insulin-secreting-cell-lines
#15
Jones K Ofori, Helena A Malm, Ines G Mollet, Lena Eliasson, Jonathan Lou S Esguerra
MicroRNAs are small non-coding RNAs, which negatively regulate the expression of target genes. They have emerged as important modulators in beta cell compensation upon increased metabolic demand, failure of which leads to reduced insulin secretion and type 2 diabetes. To elucidate the function of miRNAs in beta cells, insulin-secreting cell lines, such as the rat insulinoma INS-1 832/13 and the human EndoC-βH1, are widely used. Previous studies in the cancer field have suggested that miRNA expression is influenced by confluency of adherent cells...
2017: PeerJ
https://www.readbyqxmd.com/read/28669338/microrna-key-to-angiogenesis-regulation-mirna-biology-and-therapy
#16
Ankit Tiwari, Bratati Mukherjee, Manjusha Dixit
Angiogenesis is involved in maintaining normal physiological processes like embryonic development, wound healing, inflammation and reproduction. Pathogenesis of various diseases like diabetic retinopathy, rheumatoid arthritis and cancer are associated with imbalanced angiogenesis. Angiogenic stimulators and inhibitors act together for keeping angiogenic switch in balance. Recently miRNAs have been found to regulate various stages of angiogenesis. miRNAs are 21-23 nucleotides long, single stranded, noncoding RNA molecules generated endogenously...
June 30, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28668296/igg-glycan-patterns-are-associated-with-type-2-diabetes-in-independent-european-populations
#17
Roosmarijn F H Lemmers, Marija Vilaj, Daniel Urda, Felix Agakov, Mirna Šimurina, Lucija Klaric, Igor Rudan, Harry Campbell, Caroline Hayward, Jim F Wilson, Aloysius G Lieverse, Olga Gornik, Eric J G Sijbrands, Gordan Lauc, Mandy van Hoek
BACKGROUND: Type 2 diabetes results from interplay between genetic and acquired factors. Glycans on proteins reflect genetic, metabolic and environmental factors. However, associations of IgG glycans with type 2 diabetes have not been described. We compared IgG N-glycan patterns in type 2 diabetes with healthy subjects. METHODS: In the DiaGene study, a population-based case-control study, (1886 cases and 854 controls) 58 IgG glycan traits were analyzed. Findings were replicated in the population-based CROATIA-Korcula-CROATIA-Vis-ORCADES studies (162 cases and 3162 controls), and meta-analyzed...
June 28, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28667184/identification-confirmation-and-replication-of-novel-urinary-microrna-biomarkers-in-lupus-nephritis-and-diabetic-nephropathy
#18
Mariana Cardenas-Gonzalez, Anand Srivastava, Mira Pavkovic, Vanesa Bijol, Helmut G Rennke, Isaac E Stillman, Xiaolan Zhang, Samir Parikh, Brad H Rovin, Maryam Afkarian, Ian H de Boer, Jonathan Himmelfarb, Sushrut S Waikar, Vishal S Vaidya
BACKGROUND: The prevalence of chronic kidney disease (CKD) is increasing, leading to significant morbidity and mortality. Kidney biopsy remains the gold standard for diagnosing the underlying etiology of CKD, but the procedure carries complication risks. The aim of this study was to identify novel noninvasive biomarkers correlating with kidney function and histopathology in biopsy-proven CKD patients. METHODS: We profiled 2402 urinary microRNAs (miRNAs) to identify and confirm differentially expressed miRNAs associated with kidney function and histopathology in patients with diabetic nephropathy (n = 58) or lupus nephritis (n = 89), important etiologies of CKD, compared with healthy controls (n = 93 and 119, respectively)...
June 30, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28661068/expression-of-mir-18a-and-mir-34c-in-circulating-monocytes-associated-with-vulnerability-to-type-2-diabetes-mellitus-and-insulin-resistance
#19
Si-Si Wang, Yong-Qiang Li, Ying-Zhi Liang, Jing Dong, Yan He, Ling Zhang, Yu-Xiang Yan
Chronic stress may facilitate the development of metabolic disorders including insulin resistance (IR) and type 2 diabetes mellitus (T2DM). MiR-18a and miR-34c modulate central cell responsiveness to stress by targeting glucocorticoid receptor (GR) and corticotropin-releasing factor receptor type 1 (CRFR1) mRNA, which are important regulators of the hypothalamus-pituitary-adrenal (HPA) axis. This study explored the relationship between T2DM/IR and expression of miR-18a and miR-34c in peripheral blood mononuclear cells (PBMCs) in an occupational sample...
June 29, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28660188/microrna-in-cardiovascular-aging-and-age-related-cardiovascular-diseases
#20
REVIEW
Claudio de Lucia, Klara Komici, Giulia Borghetti, Grazia Daniela Femminella, Leonardo Bencivenga, Alessandro Cannavo, Graziamaria Corbi, Nicola Ferrara, Steven R Houser, Walter J Koch, Giuseppe Rengo
Over the last decades, life expectancy has significantly increased although several chronic diseases persist in the population, with aging as the leading risk factor. Despite improvements in diagnosis and treatment, many elderlies suffer from cardiovascular problems that are much more frequent in an older, more fragile organism. In the long term, age-related cardiovascular diseases (CVDs) contribute to the decline of quality of life and ability to perform normal activities of daily living. microRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression at the posttranscriptional level in both physiological and pathological conditions...
2017: Frontiers in Medicine
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