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miRNA diabetes

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https://www.readbyqxmd.com/read/28798665/maternal-diabetes-alters-expression-of-micrornas-that-regulate-genes-critical-for-neural-tube-development
#1
Seshadri Ramya, Sukanya Shyamasundar, Boon Huat Bay, S Thameem Dheen
Maternal diabetes is known to cause neural tube defects (NTDs) in embryos and neuropsychological deficits in infants. Several metabolic pathways and a plethora of genes have been identified to be deregulated in developing brain of embryos by maternal diabetes, although the exact mechanism remains unknown. Recently, miRNAs have been shown to regulate genes involved in brain development and maturation. Therefore, we hypothesized that maternal diabetes alters the expression of miRNAs that regulate genes involved in biological pathways critical for neural tube development and closure during embryogenesis...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28783527/circulating-early-and-mid-pregnancy-micrornas-and-risk-of-gestational-diabetes
#2
Pandora L Wander, Edward J Boyko, Karin Hevner, Viraj J Parikh, Mahlet G Tadesse, Tanya K Sorensen, Michelle A Williams, Daniel A Enquobahrie
AIMS: Epigenetic regulators, including microRNAs (miRNAs), are implicated in type 2 diabetes, but evidence linking circulating miRNAs in pregnancy and risk of gestational diabetes (GDM) is sparse. Potential modifiers, including pre-pregnancy overweight/obesity and offspring sex, are unexamined. We hypothesized that circulating levels of early-mid-pregnancy (range 7-23weeks of gestation) candidate miRNAs are related to subsequent development of GDM. We also hypothesized that miRNA-GDM associations might vary by pre-pregnancy body-mass index (ppBMI) or offspring sex...
July 25, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28774775/mir-15a-16-inhibits-tgf-beta3-vegf-signaling-and-increases-retinal-endothelial-cell-barrier-proteins
#3
Eun-Ah Ye, Li Liu, Jena J Steinle
Hyperglycemia is a significant risk factor for diabetic retinopathy and induces multiple biochemical changes, including inflammation and endothelial dysfunction in the retina. Alterations in microRNA expression have been implicated in the pathological responses of diabetic retinopathy and the manipulation of microRNA may provide powerful strategy for therapeutics. Among the predicted targets of miR-15a and -16 are TGF-beta3, SMAD2/3, and VEGF, all of which are known to play a role in vascular endothelial functions...
July 31, 2017: Vision Research
https://www.readbyqxmd.com/read/28771472/micrornas-in-the-mir-17-and-mir-15-families-are-downregulated-in-chronic-kidney-disease-with-hypertension
#4
Priyanka Nandakumar, Adrienne Tin, Megan L Grove, Jianzhong Ma, Eric Boerwinkle, Josef Coresh, Aravinda Chakravarti
BACKGROUND: In older adults (aged 70-74 years), African-Americans have 4-fold higher risk of developing hypertension-attributed end-stage renal disease (ESRD) than European-Americans. A hypothesized mechanism linking hypertension and progressive chronic kidney disease (CKD) is the innate immune response and inflammation. Persons with CKD are also more susceptible to infection. Gene expression in peripheral blood can provide a view of the innate immune activation profile. We aimed to identify differentially expressed genes, microRNAs, and pathways in peripheral blood between cases with CKD and high blood pressure under hypertension treatment versus controls without CKD and with controlled blood pressure in African Americans...
2017: PloS One
https://www.readbyqxmd.com/read/28765836/muscle-stem-cell-and-physical-activity-what-point-is-the-debate-at
#5
Gabriele Ceccarelli, Laura Benedetti, Maria Luisa Arcari, Cecilia Carubbi, Daniela Galli
In the last 15 years, it emerged that the practice of regular physical activity reduces the risks of many diseases (cardiovascular diseases, diabetes, etc.) and it is fundamental in weight control and energy consuming to contrast obesity. Different groups proposed many molecular mechanisms as responsible for the positive effects of physical activity in healthy life. However, many points remain to be clarified. In this mini-review we reported the latest observations on the effects of physical exercise on healthy skeletal and cardiac muscle focusing on muscle stem cells...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28761412/immunomodulators-and-micrornas-as-neurorestorative-therapy-for-ischemic-stroke
#6
REVIEW
Bridget Martinez, Philip V Peplow
Most of all strokes are ischemic due to occlusion of a vessel, and comprise two main types, thrombotic and embolic. Inflammation and immune response play an important role in the outcome of ischemic stroke. Pharmaceutical and cell-based therapies with immunomodulatory properties could be of benefit in treating ischemic stroke. Possible changes in microRNAs brought about by immunomodulatory treatments may be important. The pharmaceutical studies described in this review have identified several differentially regulated miRNAs associated with disregulation of mRNA targets or the upregulation of several neuroprotective genes, thereby highlighting the potential neuroprotective roles of specific miRNAs such as miR-762, -1892, -200a, -145...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28753062/long-noncoding-rna-h19-acts-as-a-competing-endogenous-rna-to-mediate-ctgf-expression-by-sponging-mir-455-in-cardiac-fibrosis
#7
Zhi-Wen Huang, Li-Hong Tian, Bin Yang, Run-Min Guo
Cardiac fibrosis is closely related to multiple cardiovascular system diseases, and noncoding RNAs (ncRNAs), including long noncoding RNA (lncRNA) and microRNA (miRNA), have been reported to play a vital role in fibrogenesis. The present study aims to investigate the potential regulatory mechanism of lncRNA H19 and miR-455 on fibrosis-associated protein synthesis in cardiac fibroblasts (CFs). miRNA microarray assay revealed 34 significantly dysregulated miRNAs, including 13 upregulated miRNAs and 21 downregulated miRNAs...
July 28, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28747214/culturing-and-transcriptome-profiling-of-progenitor-like-colonies-derived-from-adult-mouse-pancreas
#8
Dongshen Ma, Shanshan Tang, Jing Song, Qiong Wu, Fangfang Zhang, Yun Xing, Yi Pan, Yanfeng Zhang, Jingwei Jiang, Yubin Zhang, Liang Jin
BACKGROUND: Transplantation of insulin-producing cells is considered an important diabetes therapy. Many research studies have shown that insulin-producing cells can be derived from the in-vitro cultured pancreatic colonies with self-renewal ability and multilineage potential. Even though these progenitor-like colonies have been prepared from adult pancreas cells, the efficient culture method is hardly established and regulation of the colonies is rarely known. We confirmed previously that single cells acquired from adult mouse pancreas could form cyst-like colonies in a 3D semi-solid system containing Matrigel and methylcellulose...
July 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28747014/micrornas-and-adipocytokines-promising-biomarkers-for-pharmacological-targets-in-diabetes-mellitus-and-its-complications
#9
REVIEW
Mohamad Reza Ashoori, Mohammad Rahmati-Yamchi, Alireza Ostadrahimi, Sedigheh Fekri Aval, Nosratollah Zarghami
Nowadays, diabetes mellitus (DM) along with its complications is considered as a fundamental problem in both developing and industrial countries, and is causing millions of people to suffer worldwide. Currently, diabetes mellitus is diagnosed traditionally or classically in the world by measuring fasting blood glucose and conducting oral glucose tolerance test. New alternatives are required for the treatment of diabetes mellitus, especially type 2 diabetes mellitus (T2DM), at its early levels due to the ineffective control of its development in patients...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28741258/polymorphisms-in-mirna-genes-and-their-involvement-in-autoimmune-diseases-susceptibility
#10
REVIEW
Andrea Latini, Cinzia Ciccacci, Giuseppe Novelli, Paola Borgiani
MicroRNAs (miRNAs) are small non-coding RNA molecules that negatively regulate the expression of multiple protein-encoding genes at the post-transcriptional level. MicroRNAs are involved in different pathways, such as cellular proliferation and differentiation, signal transduction and inflammation, and play crucial roles in the development of several diseases, such as cancer, diabetes, and cardiovascular diseases. They have recently been recognized to play a role also in the pathogenesis of autoimmune diseases...
August 2017: Immunologic Research
https://www.readbyqxmd.com/read/28733034/decreased-expression-of-mir-150-mir146a-and-mir424-in-type-1-diabetic-patients-association-with-ongoing-islet-autoimmunity
#11
Guofeng Wang, Yong Gu, Ning Xu, Mei Zhang, Tao Yang
BACKGROUND: Recent studies revealed altered miRNAs profiling in patients with autoimmune diseases, including type 1 diabetes (T1D). Here, we conducted an observational study and examined the expression levels of these five miRNAs (miR-150,miR-146a,miR-424,miR-181a and miR-142-3P) in peripheral blood mononuclear cells (PBMCs) from T1D patients. METHODS: PBMCs were obtained from T1D cohorts (n = 78), type 2 diabetes (T2D, n = 46) and healthy control subjects (n = 56)...
July 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28729721/plasma-derived-exosome-characterization-reveals-a-distinct-microrna-signature-in-long-duration-type-1-diabetes
#12
Marta Garcia-Contreras, Sanket H Shah, Alejandro Tamayo, Paul D Robbins, Ronald B Golberg, Armando J Mendez, Camillo Ricordi
Type 1 diabetes mellitus (T1DM) results from an autoimmune attack against the insulin-producing ß cells which leads to chronic hyperglycemia. Exosomes are lipid vesicles derived from cellular multivesicular bodies that are enriched in specific miRNAs, potentially providing a disease-specific diagnostic signature. To assess the value of exosome miRNAs as biomarkers for T1DM, miRNA expression in plasma-derived exosomes was measured. Nanoparticle tracking analysis and transmission electron microscopy confirmed the presence of plasma-derived exosomes (EXOs) isolated by differential centrifugation...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728902/role-of-mirnas-in-development-and-disease-lessons-learnt-from-small-organisms
#13
REVIEW
Swati Chandra, Divya Vimal, Divya Sharma, Vipin Rai, Subash Chandra Gupta, D Kar Chowdhuri
MicroRNAs (miRNAs) constitute a class of small (21-24 nucleotides) non-coding RNAs that regulate gene expression at the post-transcriptional level. Caenorhabditis elegans, Drosophila melanogaster, and many other small organisms have been instrumental in deciphering the biological functions of miRNAs. While some miRNAs from small organisms are highly conserved across the taxa, others are organism specific. The miRNAs are known to play a crucial role during development and in various cellular functions such as cell survival, cell proliferation, and differentiation...
July 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/28721157/micrornas-and-metabolic-disorders-where-are-we-heading
#14
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
#15
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...
September 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
#16
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
#17
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...
September 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28709769/exploring-the-mitochondrial-microrna-import-pathway-through-polynucleotide-phosphorylase-pnpase
#18
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
#19
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
#20
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
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