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Identification of differentially expressed miRNAs associated with chronic kidney disease–mineral bone

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《医学前沿(英文)》 2017年 第11卷 第3期   页码 378-385 doi: 10.1007/s11684-017-0541-8

摘要:

The purpose of this study is to characterize a meta-signature of differentially expressed mRNA in chronic kidney disease (CKD) to predict putative microRNA (miRNA) in CKD–mineral bone disorder (CKD–MBD) and confirm the changes in these genes and miRNA expression under uremic conditions by using a cell culture system. PubMed searches using MeSH terms and keywords related to CKD, uremia, and mRNA arrays were conducted. Through a computational analysis, a meta-signature that characterizes the significant intersection of differentially expressed mRNA and expected miRNAs associated with CKD–MBD was determined. Additionally, changes in gene and miRNA expressions under uremic conditions were confirmed with human Saos-2 osteoblast-like cells. A statistically significant mRNA meta-signature of upregulated and downregulated mRNA levels was identified. Furthermore, miRNA expression profiles were inferred, and computational analyses were performed with the imputed microRNA regulation based on weighted ranked expression and putative microRNA targets (IMRE) method to identify miRNAs associated with CKD occurrence. TLR4 and miR-146b levels were significantly associated with CKD–MBD. TLR4 levels were significantly downregulated, whereas pri-miR-146b and miR-146b were upregulated in the presence of uremic toxins in human Saos-2 osteoblast-like cells. Differentially expressed miRNAs associated with CKD-MBD were identified through a computational analysis, and changes in gene and miRNA expressions were confirmed with an in vitro cell culture system.

关键词: chronic kidney disease     microRNA     mineral bone disorder     uremia    

miRNAs in non-alcoholic fatty liver disease

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《医学前沿(英文)》 2016年 第10卷 第4期   页码 389-396 doi: 10.1007/s11684-016-0468-5

摘要:

Non-alcoholic fatty liver disease (NAFLD) is a major cause of liver cirrhosis and hepatocellular carcinoma and is a considerable threat to public health. miRNAs are important post-transcriptional regulators of gene expression, and the dysregulation of miRNAs is involved in various biological processes in the liver, including lipid homeostasis, inflammation, apoptosis, and cell proliferation. Recently, a number of studies have described the association between miRNAs and NAFLD progression and have shown that circulating miRNAs reflect histological changes in the liver. Therefore, circulating miRNAs have potential use for the evaluation of NAFLD severity. In this review, we discuss the involvement of miRNAs in NAFLD pathogenesis and the key role of miRNAs in the screening, diagnosis, and staging of NAFLD.

关键词: nonalcoholic fatty liver disease     nonalcoholic steatohepatitis     hepatocellular carcinoma     miRNA    

The genetic regulation of skeletal muscle development: insights from chicken studies

Wen LUO, Bahareldin A. ABDALLA, Qinghua NIE, Xiquan ZHANG

《农业科学与工程前沿(英文)》 2017年 第4卷 第3期   页码 295-304 doi: 10.15302/J-FASE-2017159

摘要: Skeletal muscle development is a complex multi-process trait regulated by various genetic factors. The chicken embryo is an ideal model system for studying skeletal muscle development. However, only a small proportion of the genetic factors affecting skeletal muscle development have been identified in chicken. The aim of this review is to summarize recent knowledge about the genetic factors involved in the regulation of skeletal muscle development in the chicken, such as gene polymorphisms, epigenetic modification, noncoding RNAs and transcription factors, which can influence skeletal muscle development at the genome, epigenome, transcriptome and proteome levels. Research on the regulation of skeletal muscle development in chicken is not yet comprehensive and most of the candidate genes and single nucleotide polymorphisms related to chicken muscle growth remain to be verified in experimental studies. In addition, the data derived from transcriptome sequencing and genome-wide association studies still require further investigation and analysis and comprehensive studies on the regulation of chicken skeletal muscle development will continue as a major research focus.

关键词: chicken     epigenetic modification     miRNAs     skeletal muscle development     SNP     transcription factor    

标题 作者 时间 类型 操作

Identification of differentially expressed miRNAs associated with chronic kidney disease–mineral bone

null

期刊论文

miRNAs in non-alcoholic fatty liver disease

null

期刊论文

The genetic regulation of skeletal muscle development: insights from chicken studies

Wen LUO, Bahareldin A. ABDALLA, Qinghua NIE, Xiquan ZHANG

期刊论文