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https://www.readbyqxmd.com/read/29154802/microrna-profiling-in-mda-mb-231-human-breast-cancer-cell-exposed-to-the-phaleria-macrocarpa-boerl-fruit-ethyl-acetate-fraction-pmeaf-through-iilumina-hi-seq-technologies-and-various-in-silico-bioinformatics-tools
#1
Nowroji Kavitha, Soundararajan Vijayarathna, Shanmugapriya, Chern Ein Oon, Yeng Chen, Jagat R Kanwar, Vasu Punj, Sreenivasan Sasidharan
ETHNOPHARMACOLOGICAL RELEVANCE: Phaleria macrocarpa (Scheff) Boerl, is a famous traditional medicinal plant which exhibited cytotoxicity against various cancerous cells. Traditionally, P. macrocarpa has been used to control cancer, impotency, hemorrhoids, diabetes mellitus, allergies, liver and heart disease, kidney disorders, blood diseases, acne, stroke, migraine, and various skin diseases. AIM OF THE STUDY: Recent studies have demonstrated a potent anticancer potential of P...
November 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29149826/novel-functions-of-microrna-17-92-cluster-in-the-endocrine-system
#2
Shan Wan, Xiang Chen, Yuedong He, Xijie Yu
BACKGROUND: MiR-17-92 cluster is coded by MIR17HG in chromosome 13, which is highly conserved in vertebrates. Published literatures have proved that miR-17-92 cluster critically regulates tumorigenesis and metastasis. Recent researches showed that the miR-17-92 cluster also plays novel functions in the endocrine system. OBJECTIVE: To summarize recent findings on the physiological and pathological roles of miR-17-92 cluster in bone, lipid and glucose metabolisms...
November 17, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29149532/exploitation-of-micrornas-by-japanese-encephalitis-virus-in-human-microglial-cells
#3
Meghana Rastogi, Neha Srivastava, Sunit K Singh
JEV infection in CNS leads to the JE neuroinflammation. Children and old age individual have been reported to be more prone to JEV infection. MicroRNAs are endogenous, small non-coding RNAs, which regulate the gene expression. These are ∼22 nucleotide long, conserved RNA sequence that binds at the 3'UTR of a target mRNA and regulate the post-transcriptional gene expression. The role of microRNAs has been reported in several diseases like cancer, viral infection, neuro-degeneration, diabetes etc. In the present study, the human microglial cells were infected with JEV (JaOAr strain)...
November 17, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29141886/pd-l1-genetic-overexpression-or-pharmacological-restoration-in-hematopoietic-stem-and-progenitor-cells-reverses-autoimmune-diabetes
#4
Moufida Ben Nasr, Sara Tezza, Francesca D'Addio, Chiara Mameli, Vera Usuelli, Anna Maestroni, Domenico Corradi, Silvana Belletti, Luca Albarello, Gabriella Becchi, Gian Paolo Fadini, Christian Schuetz, James Markmann, Clive Wasserfall, Leonard Zon, Gian Vincenzo Zuccotti, Paolo Fiorina
Immunologically based clinical trials performed thus far have failed to cure type 1 diabetes (T1D), in part because these approaches were nonspecific. Because the disease is driven by autoreactive CD4 T cells, which destroy β cells, transplantation of hematopoietic stem and progenitor cells (HSPCs) has been recently offered as a therapy for T1D. Our transcriptomic profiling of HSPCs revealed that these cells are deficient in programmed death ligand 1 (PD-L1), an important immune checkpoint, in the T1D nonobese diabetic (NOD) mouse model...
November 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29130298/role-of-micrornas-mirnas-in-pathophysiology-of-diabetes-mellitus
#5
Juhi Tiwari, Gaurav Gupta, Terezinha de Jesus Andreoli Pinto, Rahul Sharma, Kavita Pabreja, Yogesh Matta, Neha Arora, Anurag Mishra, Rakesh Sharma, Kamal Dua
Diabetes Mellitus is becoming the critical problem among the entire world and it is difficult to understand the molecular mechanism representing the concept of diabetic pathology. Recently the knowledge of the involvement of genetics in type 2 diabetes mellitus (T2DM) susceptibility has sketched a great concentration towards the transcriptional activity of ß cells within the pancreas. This disease becomes the leading cause of death so it is necessary to study the molecular pathogenesis, phenotypes, and characteristics to design the therapeutic parameters...
November 10, 2017: Panminerva Medica
https://www.readbyqxmd.com/read/29124099/data-on-the-expression-and-insulin-stimulated-phosphorylation-of-irs-1-by-mir-96-in-l6-glut4myc-myocytes
#6
Won-Mo Yang, Kyung-Ho Min, Yi-Seul Son, Se-Whan Park, Wan Lee
Diets containing a high saturated fatty acid (SFA) increase the risk of metabolic diseases, and microRNAs (miRNAs) induced by SFA have been implicated in the pathogenesis of insulin resistance and type 2 diabetes. In a previous report, miR-96 is found to be upregulated by SFA and involved in the suppression of insulin signaling intermediates, leading to insulin resistance in hepatocytes (Yang et al., 2016) [1]. This article presents the accompanying data collected from L6-GLUT4myc myocytes to determine the effects of miR-96 on insulin signaling in skeletal muscle cells...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29122960/mir-335-overexpression-impairs-insulin-secretion-through-defective-priming-of-insulin-vesicles
#7
Vishal A Salunkhe, Jones K Ofori, Nikhil R Gandasi, Sofia A Salö, Sofia Hansson, Markus E Andersson, Anna Wendt, Sebastian Barg, Jonathan L S Esguerra, Lena Eliasson
MicroRNAs contribute to the maintenance of optimal cellular functions by fine-tuning protein expression levels. In the pancreatic β-cells, imbalances in the exocytotic machinery components lead to impaired insulin secretion and type 2 diabetes (T2D). We hypothesize that dysregulated miRNA expression exacerbates β-cell dysfunction, and have earlier shown that islets from the diabetic GK-rat model have increased expression of miRNAs, including miR-335-5p (miR-335). Here, we aim to determine the specific role of miR-335 during development of T2D, and the influence of this miRNA on glucose-stimulated insulin secretion and Ca(2+)-dependent exocytosis...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29122890/microrna-30c-reduces-plasma-cholesterol-in-homozygous-familial-hypercholesterolemic-and-type-2-diabetic-mouse-models
#8
Sara Irani, Jahangir Iqbal, W James Antoni, Laraib Ijaz, M Mahmood Hussain
High plasma cholesterol levels are found in several metabolic disorders and their reductions are advocated to reduce risk of atherosclerosis. A way to lower plasma lipids is to curtail lipoprotein production; however, this is associated with steatosis. We previously showed that microRNA-30c (miR-30c) lowers diet-induced hypercholesterolemia and atherosclerosis in C57BL/6J and Apoe-/- mice. Here, we tested miR-30c effect on plasma lipids, transaminases and hepatic lipids in different mouse models. Hepatic delivery of miR-30c to chow fed leptin deficient (ob/ob) and leptin receptor deficient (db/db) hypercholesterolemic and hyperglycemic mice reduced cholesterol in total plasma and VLDL/LDL by ~28% and ~25%, respectively, without affecting triglyceride and glucose levels...
November 9, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29113498/decreased-serum-microrna-21-level-is-associated-with-obesity-in-healthy-and-type-2-diabetic-subjects
#9
Samira Ghorbani, Roya Mahdavi, Behnam Alipoor, Ghodratollah Panahi, Ensieh Nasli Esfahani, Farideh Razi, Mohhammad Taghikhani, Reza Meshkani
BACKGROUND: Recently, much attention has been paid to the role of circulating microRNAs (miRNAs) as novel biomarkers for various diseases. The aim of this study was to investigate the level of a subset of miRNAs in serum samples of the diabetic and healthy subjects. METHODS: Forty two healthy and 45 T2D subjects participated in this study. Serum miR-21, miR-126, and miR-146a levels were measured using real-time PCR. RESULTS: There was no significant difference in the serum level of miR-21, miR-126, and miR-146a between the diabetic and non-diabetic groups...
November 7, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29107764/current-attempts-to-implement-microrna-based-diagnostics-and-therapy-in-cardiovascular-and-metabolic-disease-a-promising-future
#10
Punniyakoti V Thanikachalam, Srinivasan Ramamurthy, Zheng W Wong, Koo B Jin, Wong J Ying, Mohd F B Abdullah, Chin Y Haur, Chia C Hou, Tan J Yi, Neo W Ting, Tan B Sen, Khan W Fang, Prashant Kesharwani
MicroRNAs (miRNAs) are small, noncoding RNAs regulating gene expression at the post-translational level. miRNA-based therapeutic agents are important because of the functionality of miRNAs in regulating lipid and glucose metabolism and their role in the pathogenesis of metabolic disorders such as diabetes and obesity, where dysregulation leads to disease; they are also important in angiogenesis. miRNAs additionally serve as biomarkers in the diagnosis, prognosis and risk assessment of disease and in monitoring the response to treatment...
October 28, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/29107288/identification-of-islet-enriched-long-non-coding-rnas-contributing-to-%C3%AE-cell-failure-in-type-2-diabetes
#11
Anna Motterle, Sonia Gattesco, Marie-Line Peyot, Jonathan Lou S Esguerra, Ana Gomez-Ruiz, D Ross Laybutt, Patrick Gilon, Frédéric Burdet, Mark Ibberson, Lena Eliasson, Marc Prentki, Romano Regazzi
OBJECTIVE: Non-coding RNAs constitute a major fraction of the β-cell transcriptome. While the involvement of microRNAs is well established, the contribution of long non-coding RNAs (lncRNAs) in the regulation of β-cell functions and in diabetes development remains poorly understood. The aim of this study was to identify novel islet lncRNAs differently expressed in type 2 diabetes models and to investigate their role in β-cell failure and in the development of the disease. METHODS: Novel transcripts dysregulated in the islets of diet-induced obese mice were identified by high throughput RNA-sequencing coupled with de novo annotation...
November 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29106399/a-microrna-screen-reveals-that-elevated-hepatic-ectodysplasin-a-expression-contributes-to-obesity-induced-insulin-resistance-in-skeletal-muscle
#12
Motoharu Awazawa, Paula Gabel, Eva Tsaousidou, Hendrik Nolte, Marcus Krüger, Joel Schmitz, P Justus Ackermann, Claus Brandt, Janine Altmüller, Susanne Motameny, F Thomas Wunderlich, Jan-Wilhelm Kornfeld, Matthias Blüher, Jens C Brüning
Over 40% of microRNAs (miRNAs) are located in introns of protein-coding genes, and many of these intronic miRNAs are co-regulated with their host genes. In such cases of co-regulation, the products of host genes and their intronic miRNAs can cooperate to coordinately regulate biologically important pathways. Therefore, we screened intronic miRNAs dysregulated in the livers of mouse models of obesity to identify previously uncharacterized protein-coding host genes that may contribute to the pathogenesis of obesity-associated insulin resistance and type 2 diabetes mellitus...
November 6, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29105385/punica-granatum-l-fruit-aqueous-extract-suppresses-reactive-oxygen-species-mediated-p53-p65-mir-145-expressions-followed-by-elevated-levels-of-irs-1-in-alloxan-diabetic-rats
#13
Ehsan Gharib, Shideh Montasser Kouhsari, Maryam Izad
OBJECTIVES: Reactive oxygen species (ROS) is an apoptosis inducer in pancreatic β-cells that stimulates p53/p65 mediated microRNA (miR)-145 expression. Punica granatum L. (pomegranate) is an antioxidant fruit that attenuates ROS generation. This study examines the effects of pomegranate fruit aqueous extract (PGE) on the levels of ROS, p53, p65, miR-145, and its target insulin receptor substrate 1 (irs-1) mRNA in Alloxan-diabetic male Wistar rats. MATERIALS AND METHODS: In this experimental study, diabetic rats received different doses of PGE...
January 2018: Cell Journal
https://www.readbyqxmd.com/read/29104503/the-emerging-roles-of-microparticles-in-diabetic-nephropathy
#14
REVIEW
Chen Chen Lu, Kun Ling Ma, Xiong Zhong Ruan, Bi Cheng Liu
Microparticles (MPs) are a type of extracellular vesicles (EVs) shed from the outward budding of plasma membranes during cell apoptosis and/or activation. These microsized particles then release specific contents (e.g., lipids, proteins, microRNAs) which are active participants in a wide range of both physiological and pathological processes at the molecular level, e.g., coagulation and angiogenesis, inflammation, immune responses. Research limitations, such as confusing nomenclature and overlapping classification, have impeded our comprehension of these tiny molecules...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/29101357/microrna-27a-regulates-hepatic-lipid-metabolism-and-alleviates-nafld-via-repressing-fas-and-scd1
#15
Meiyuan Zhang, Weilan Sun, Minghao Zhou, Yan Tang
MicroRNAs are implicated as crucial mediators in metabolic diseases including obesity, diabetes, and non-alcoholic fatty liver diseases (NAFLD). Here, we show miR-27a attenuated hepatic de novo lipogenesis and alleviated obesity-initiated NAFLD through inhibiting Fasn and Scd1 in liver. Hepatic levels of miR-27a were significantly augmented in HFD-fed and ob/ob mice. Further studies demonstrated that miR-27a directly interacted with 3' untranslated region (3'-UTR) of hepatic Fasn and Scd1 mRNAs and reduced their expression levels in mice...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29101219/mir-204-controls-glucagon-like-peptide-1-receptor-expression-and-agonist-function
#16
SeongHo Jo, Junqin Chen, Guanlan Xu, Truman B Grayson, Lance A Thielen, Anath Shalev
Glucagon-like peptide 1 receptor (GLP1R) agonists are widely used to treat diabetes. However, their function is dependent on adequate GLP1R expression, which is downregulated in diabetes. GLP1R is highly expressed on pancreatic beta cells and activation by endogenous incretin or GLP1R agonists increases cAMP generation, which stimulates glucose-induced beta cell insulin secretion and helps maintain glucose homeostasis. We now have discovered that the highly beta cell-enriched microRNA, miR-204, directly targets the 3'UTR of GLP1R and thereby downregulates its expression in the beta-cell-derived rat INS-1 cell line and primary mouse and human islets...
November 3, 2017: Diabetes
https://www.readbyqxmd.com/read/29100392/mir-30a-inhibits-becn1-mediated-autophagy-in-diabetic-cataract
#17
Lu Zhang, Rong Cheng, Yusen Huang
Purpose: To investigate the role of microRNAs in the regulation of autophagy and apoptosis in lens epithelial cells (LECs) during diabetic cataract formation. Methods: A miRNA microarray study and quantitative real-time PCR were performed to identify the expression of miRNAs in LECs of diabetic cataract. Human LECs were cultured in high glucose conditions as a diabetic cataract model. BECN1 and LC3B were detected by Western blotting and quantitative real-time PCR...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29098626/micrornas-mediate-beneficial-effects-of-exercise-in-heart
#18
Yihua Bei, Lichan Tao, Dragos Cretoiu, Sanda Maria Cretoiu, Junjie Xiao
MicroRNAs (miRNAs, miRs), a group of small non-coding RNAs, repress gene expressions at posttranscriptional level in most cases and are involved in cardiovascular physiology and disease pathogenesis. Increasing evidence has proved that miRNAs are potential regulators of exercise induced cardiac growth and mediate the benefits of exercise in a variety of cardiovascular diseases. In this chapter, we will review the regulatory effects of miRNAs in cardiac adaptations to exercise, and summarize their cardioprotective effects against myocardial infarction, ischemia/reperfusion injury, heart failure, diabetic cardiomyopathy, atherosclerosis, hypertension, and pulmonary hypertension...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29077919/glucocorticoids-suppressing-the-browning-of-adipose-tissue-via-mir-19b-in-male-mice
#19
Yifan Lv, Jing Yu, Yunlu Sheng, Min Huang, Xiaocen Kong, Wenjuan Di, Juan Liu, Hong Zhou, Hui Liang, Guoxian Ding
Physiological levels of glucocorticoids are required for proper metabolic control, and excessive glucocorticoid action has been linked to a variety of pandemic metabolic diseases. microRNA (miRNA)-19b plays a critical role in the pathogenesis of glucocorticoid-induced metabolic diseases. This study sought to explore the potential of miRNA-based therapeutics targeting adipose tissue. Our results showed that overexpressed miR-19b in stromal vascular fraction cells derived from subcutaneous adipose tissue had the same effects as dexamethasone treatment on the inhibition of adipose browning and oxygen consumption rate...
October 24, 2017: Endocrinology
https://www.readbyqxmd.com/read/29074557/roles-of-micrornas-and-long-noncoding-rnas-in-the-progression-of-diabetic-retinopathy
#20
Qiaoyun Gong, Guanfang Su
Diabetic retinopathy (DR) is the leading cause of blindness in working-age adults across the world. The pathogenesis of DR is multifactorial, and the molecular mechanisms are still not fully understood. Accumulating evidence has demonstrated that noncoding RNAs may be aberrantly expressed and may play vital roles in the development of DR. Among noncoding RNAs, microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are known for their regulatory functions. Here, we summarize the functions and mechanisms of known aberrantly-expressed miRNAs and lncRNAs in DR...
October 26, 2017: Bioscience Reports
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