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Micro-rna

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https://www.readbyqxmd.com/read/28445253/micro-rna-screening-and-prediction-model-construction-for-diagnosis-of-salt-sensitive-essential-hypertension
#1
Han Qi, Zheng Liu, Bin Liu, Han Cao, Weiping Sun, Yuxiang Yan, Ling Zhang
Commonly used tests for diagnosis of salt-sensitive hypertension (SSH) are complex and time-consuming, so new methods are required. Many studies have demonstrated roles for miRNAs in hypertension; however, the diagnostic value of miRNAs has yet to be determined for human SSH. In this study, we examined miRNA expression profiles by initial high-throughput miRNA sequencing of samples from patients with salt-sensitive and salt-resistant hypertension (SSH and SRH, respectively; n = 6, both groups), followed by validation by quantitative real-time polymerase chain reaction (qRT-PCR) in a larger cohort (n = 91)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444618/rna-dna-co-analysis-on-aged-bloodstains-from-adhesive-tapes-used-for-gunshot-residue-collection-from-hands
#2
Melanie Grabmüller, Christian Schyma, Burkhard Madea, Tim Eichhorst, Cornelius Courts
In cases of firearm related fatalities a systematic investigation at the scene of death is indispensable to differentiate between self-inflicted and homicidal gunshot injuries. A common method to preserve gunshot residues (GSR) is their collection using adhesive tapes. However, the biological material gathered at the same time by the tapes would be of special interest if backspatter, ejected from the entrance wound against the direction of fire, could be detected. In the present study we examined the success rate of co-analysis of RNA and DNA recovered from biological traces sampled with adhesive tapes...
April 25, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28440611/the-meningioma-1-mn1-gene-is-an-independent-poor-prognostic-factor-in-adult-egyptian-acute-myeloid-leukemia-patients
#3
Roxan E Shafik, Naglaa M Hassan, Yomna M El Meligui, Hanan E Shafik
Aim: To determine the prognostic importance of meningioma 1 (MN1) gene expression levels in the context of other predictive markers for acute myeloid leukemia (AML) cases. Methods: MN1 expression was measured in 85 newly diagnosed adults younger than 60 years by real-time reverse-transcriptase polymerase chain reaction. Results: At diagnosis 67.4% of cases had elevated MN1 expression, this being associated with a worse prognosis, higher incidence of lymphadenopathy and CD34 transcript expression (p=0.02 and <0...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28439113/microrna-expression-profiling-defines-the-impact-of-electronic-cigarettes-on-human-airway-epithelial-cells
#4
Siva Kumar Solleti, Soumyaroop Bhattacharya, Ausaf Ahmad, Qian Wang, Jared Mereness, Tirumalai Rangasamy, Thomas J Mariani
While all forms of tobacco exposure have negative health effects, the significance of exposure to electronic cigarettes (eCig) is not fully understood. Here, we studied the global effects of eCig on the micro RNA (miRNA) transcriptome in human lung epithelial cells. Primary human bronchial epithelial (NHBE) cells differentiated at air-liquid interface were exposed to eCig liquid. Exposure of NHBE to any eCig liquid resulted in the induction of oxidative stress-response genes including GCLM, GCLC, GPX2, NQO1 and HO-1...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436142/cortisol-is-associated-with-low-frequency-of-interleukin-10-producing-b-cells-in-patients-with-atherosclerosis
#5
Yizhong Huo, Yan Chu, Lixin Guo, Linli Liu, Xiaojun Xia, Tierui Wang
It is accepted that inflammation plays a critical role in the development of atherosclerosis; the pathogenesis is not clear. B-cell-produced interleukin (IL) 10 is an immune regulatory cytokine that can inhibit immune inflammation. This study tests a hypothesis that a psychological stress hormone, cortisol, suppresses IL-10 expression in peripheral B cells of patients with atherosclerosis. Peripheral blood samples were collected from patients with coronary artery atherosclerosis. B cells were isolated from the blood samples to be analyzed for the expression of IL-10 and micro RNA (miR) 98 by real-time polymerase chain reaction...
April 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28425921/plasma-micro-rna-alterations-appear-late-in-pancreatic-cancer
#6
Oskar Franklin, Pär Jonsson, Ola Billing, Erik Lundberg, Daniel Öhlund, Hanna Nyström, Christina Lundin, Henrik Antti, Malin Sund
OBJECTIVES: The aim of this research was to study whether plasma microRNAs (miRNA) can be used for early detection of pancreatic cancer (PC) by analyzing prediagnostic plasma samples collected before a PC diagnosis. BACKGROUND: PC has a poor prognosis due to late presenting symptoms and early metastasis. Circulating miRNAs are altered in PC at diagnosis but have not been evaluated in a prediagnostic setting. METHODS: We first performed an initial screen using a panel of 372 miRNAs in a retrospective case-control cohort that included early-stage PC patients and healthy controls...
January 3, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28421280/systems-biology-of-seeds-deciphering-the-molecular-mechanisms-of-seed-storage-dormancy-and-onset-of-germination
#7
EDITORIAL
Nese Sreenivasulu
Seeds are heterogeneous storage reserves with wide array of storage compounds that include various soluble carbohydrates, starch polymer, storage proteins and lipids. These stored reserves comprise 70% of the world's caloric intake in the form of food and animal feed produced through sustainable agriculture, which contributes to food and nutritional security. Seed systems biology remains an enigmatic subject in understanding seed storage processes, maturation and pre-germinative metabolism. The reviews and research articles covered in this special issue of Plant Cell Reports highlight recent advances made in the area of seed biology that cover various systems biology applications such as gene regulatory networks, metabolomics, epigenetics and the role of micro-RNA in seed development...
April 18, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28415669/micro-rna-98-suppresses-interleukin-10-in-peripheral-b-cells-in-patient-post-cardio-transplantation
#8
Jiangping Song, Wenjun Su, Xiao Chen, Qian Zhao, Ningning Zhang, Mao-Gang Li, Ping-Chang Yang, Liqing Wang
The immune tolerance to the transplant heart survival is critical. Regulatory B cells are one of the major immune regulatory cell populations in the immune tolerance. Micro RNAs (miR) can regulate the activities of immune cells, such as the expression of interleukin (IL)-10 by B cells. This study tests a hypothesis that micro RNA (miR)-98 plays a role in the regulation of interleukin (IL)-10 expression in B cells (B10 cell) after heart transplantation. In this study, the peripheral blood samples were collected from patients before and after heart transplantation...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407626/exogenous-mirna-146a-enhances-the-therapeutic-efficacy-of-human-mesenchymal-stem-cells-by-increasing-vascular-endothelial-growth-factor-secretion-in-the-ischemia-reperfusion-injured-heart
#9
Hyang-Hee Seo, Se-Yeon Lee, Chang Youn Lee, Ran Kim, Pilseog Kim, Sekyung Oh, Hojin Lee, Min Young Lee, Jongmin Kim, Lark Kyun Kim, Ki-Chul Hwang, Woochul Chang
Adult stem cells have been studied as a promising therapeutic modality for the functional restoration of the damaged heart. In the present study, a strategy for enhancing the angiogenic efficacy of human mesenchymal stem cells (hMSCs) using micro-RNA was examined. We investigated whether micro-RNA-146a (miR-146a) influences the secretion of vascular endothelial growth factor (VEGF) and angiogenesis of MSCs. Our data indicated that miR-146a-transfected hMSCs (hMSCmiR-146a) decreased the expression of neurofibromin 2, an inhibitor of p21-activated kinase-1 (PAK1)...
April 14, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28396831/cryptochrome-2-extensively-regulates-transcription-of-the-chloroplast-genome-in-tomato
#10
Paolo Facella, Fabrizio Carbone, Antonio Placido, Gaetano Perrotta
Light plays a key role in the regulation of many physiological processes required for plant and chloroplast development. Plant cryptochromes (crys) play an important role in monitoring, capturing, and transmitting the light stimuli. In this study, we analyzed the effects of CRY2 overexpression on transcription of tomato chloroplast genome by a tiling array, containing about 90 000 overlapping probes (5-nucleotide resolution). We profiled transcription in leaves of wild-type and CRY2-overexpressing plants grown in a diurnal cycle, to generate a comprehensive map of chloroplast transcription and to monitor potential specific modulations of the chloroplast transcriptome induced by the overexpression of CRY2...
April 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28388587/micro-rna-19a-interferes-with-il-10-expression-in-peripheral-dendritic-cells-of-patients-with-nasal-polyposis
#11
Xiang-Qian Luo, Jian-Bo Shao, Rui-Di Xie, Lu Zeng, Xiao-Xi Li, Shu-Qi Qiu, Xiao-Rui Geng, Li-Tao Yang, Lin-Jing Li, Da-Bo Liu, Zhi-Gang Liu, Ping-Chang Yang
The pathogenesis of nasal polyp is to be further investigated. Micro RNA (miR) plays a role in the development of allergic inflammation. Interleukin (IL)-10-producing dendritic cells (DC) have immune tolerogenic properties. This study test a hypothesis that miR-17-92 cluster is associated with suppressing IL-10 in peripheral DC. In this study, peripheral blood samples were obtained from 26 patients with nasal polyp. The CD11c DCs were isolated from the blood samples and analyzed for the expression of IL-10...
March 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28386366/micro-rna-19a-suppresses-interleukin-10-in-peripheral-b-cells-of-patients-with-diabetic-retinopathy
#12
Cong Wang, Qisheng You, Xusheng Cao, Huiling Guo, Xinxiao Gao, Xiaoyan Peng
A number of patients with diabetes suffer from retinopathy; the pathogenesis is to be further investigated. Recent reports indicate that micro RNA (miR) plays critical roles in the development of immune inflammation. This study test a hypothesis that miR-17-92 cluster is associated with the pathogenesis of diabetes retinopathy (DR). In this study, peripheral blood samples were collected from DR patients and healthy subjects. B cells were isolated from the blood samples to be analyzed the expression of interleukin (IL)-10...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28374902/impact-of-microrna-375-and-its-target-gene-smad-7-polymorphism-on-susceptibility-of-colorectal-cancer
#13
Olfat Gamil Shaker, Shereen Rashad Mohammed, Asmaa Mohammed Mohammed, Zeinab Mahmoud
BACKGROUND: Colorectal cancer (CRC) has a high morbidity and mortality. Many studies reported that mir-375 is frequently down-regulated in many cancers including esophageal cancer, hepatocellular carcinoma, breast cancer and leukemias. AIM: Our aim was to study the expression of microRNA-375 and its target gene SMAD-7 polymorphisms (rs4939827) in CRC patients in comparison to control subjects and to correlate these results with clinical data of patients to elucidate their role in pathogenesis and early diagnosis of CRC...
April 4, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28373686/an-update-on-stem-cell-biology-and-engineering-for-brain-development
#14
C J C Parr, S Yamanaka, H Saito
Two recent technologies, induced-pluripotent stem cells (iPSCs) and direct somatic reprogramming, have shown enormous potential for cell-based therapies against intractable diseases such as those that affect the central nervous system. Already, methods that generate most major cell types of the human brain exist. Whether the cell types are directly reprogrammed from human somatic cells or differentiated from an iPSC intermediate, the overview presented here demonstrates how these protocols vary greatly in their efficiencies, purity and maturation of the resulting cells...
April 4, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28373650/vitamin-d3-inhibits-micro-rna-17-92-to-promote-specific-immunotherapy-in-allergic-rhinitis
#15
Zhi-Jian Yu, Lu Zeng, Xiang-Qian Luo, Xiao-Rui Geng, Rui Xu, Kun Chen, Gui Yang, Xi Luo, Zhi-Qiang Liu, Zhi-Gang Liu, Da-Bo Liu, Ping-Chang Yang, Hua-Bin Li
It is recognized that T helper 2 (Th2) polarization plays a critical role in a large number of immune disorders. Yet, the remedies for reconciling the established Th2 polarization are still limited currently. Published data indicate that micro RNA-17-92 cluster is associated with the skewed immune response; 25 vitamin D3 (VD3) can regulate multiple bioactivities in the body. This study tests a hypothesis that VD3 facilitates the effect of specific immunotherapy (SIT) on Th2 response. We observed that treatment with either SIT or VD3 alleviated AR symptoms as well as reduced serum levels of specific IgE and T helper (Th) 2 cytokines, suppressed miR-19a (one of the members of the miR-17-92 cluster) and increased IL-10 in peripheral B cells, which was further improved in those AR patients treated with both SIT and VD3...
April 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28361685/sparse-feature-selection-for-classification-and-prediction-of-metastasis-in-endometrial-cancer
#16
Mehmet Eren Ahsen, Todd P Boren, Nitin K Singh, Burook Misganaw, David G Mutch, Kathleen N Moore, Floor J Backes, Carolyn K McCourt, Jayanthi S Lea, David S Miller, Michael A White, Mathukumalli Vidyasagar
BACKGROUND: Metastasis via pelvic and/or para-aortic lymph nodes is a major risk factor for endometrial cancer. Lymph-node resection ameliorates risk but is associated with significant co-morbidities. Incidence in patients with stage I disease is 4-22% but no mechanism exists to accurately predict it. Therefore, national guidelines for primary staging surgery include pelvic and para-aortic lymph node dissection for all patients whose tumor exceeds 2cm in diameter. We sought to identify a robust molecular signature that can accurately classify risk of lymph node metastasis in endometrial cancer patients...
March 27, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28356004/post-transcriptional-and-post-translational-regulation-of-central-carbon-metabolic-enzymes-in-cancer
#17
Yunqian Wang, Yingxuan Chen, Jingyuan Fang
Malignant transformation of cells requires specific adaptations of cellular metabolism to support growth and survival. Alterations in cancer central carbon metabolism including aerobic glycolysis, elevated glutaminolysis, dysregulated tricarboxylic acid cycle and pentose phosphate pathway, facilitating cancer development by maintaining viability and building new biomass. Although a variety of oncogenes or tumor suppressors contribute to these rewiring, accumulating evidence suggests that both post-transcriptional and post-translational modifications (PTMs) also orchestrate the tightly controlled regulation of cancer metabolic adaptations, broadening the biological mechanisms of cancer metabolic reprogramming...
March 27, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28345454/genome-wide-profiling-of-micro-rna-expression-in-gefitinib-resistant-human-lung-adenocarcinoma-using-microarray-for-the-identification-of-mir-149-5p-modulation
#18
Yong Hu, Xiaobing Qin, Dali Yan, Haixia Cao, Leilei Zhou, Fan Fan, Jialan Zang, Jie Ni, Xiaoyue Xu, Huanhuan Sha, Siwen Liu, Shaorong Yu, Jianzhong Wu, Rong Ma, Jifeng Feng
To understand the mechanism involved in gefitinib resistance, we established gefitinib-resistant human HCC827/GR-8-1 cell line from the parental HCC827 cell line. We compared the micro-RNA expression profiles of the HCC827 cells HCC827/GR-8-1 using Agilent micro-RNA microarrays. The micro-RNAs, such as the miR-149-5p, were up- or downregulated and associated with acquired gefitinib resistance. Quantitative real-time polymerase chain reaction was then performed to verify the expression patterns of different micro-RNAs...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28277007/microrna-mediated-non-viral-direct-conversion-of-embryonic-fibroblasts-to-cardiomyocytes-comparison-of-commercial-and-synthetic-non-viral-vectors
#19
Hyosuk Kim, Dongkyu Kim, Sook Hee Ku, Kwangmeyung Kim, Sun Hwa Kim, Ick Chan Kwon
Technological advances opened up new ways of directing cell fate conversion from one cell lineage to another. The direct cell conversion technique has recently attracted much attention in regenerative medicine to treat devastated organs and tissues, particularly having limited regenerative capacity such as the heart and brain. Unfortunately, its clinical application is severely limited due to a safety concern and immunogenicity of viral vectors, as human gene therapy did in the beginning stages. In this study, we examined the possibility of adopting non-viral vectors to direct cell conversion from mouse embryonic fibroblasts to induced cardiomyocytes (iCM) by transient transfection of four types of chemically synthesized micro-RNA mimics (miRNA-1, 133, 208, and 499)...
February 16, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28276344/a-new-fluorescence-turn-on-nanobiosensor-for-the-detection-of-micro-rna-21-based-on-a-dna-gold-nanocluster
#20
Morteza Hosseini, Elnaz Ahmadi, Yasaman-Sadat Borghei, Mohammad Reza Ganjali
In this study, DNA/gold nanoclusters (AuNCs) were used to develop an AuNC-based turn-on fluorescence probe for the analysis of mi-RNA-21, which is a potential screening biomarker for cancer detection. AuNCs on a DNA scaffold were prepared through a one-pot wet-chemical route and evaluated by transmission electron microscopy and dynamic light scattering. Experiments revealed that the fluorescence intensity of the DNA-AuNCs showed a gradual increase with the addition of the target species in a concentration range from 1pM to 10 nM...
March 8, 2017: Methods and Applications in Fluorescence
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