نتایج جستجو برای: chemical enhancers

تعداد نتایج: 384007  

Journal: :Nature Reviews Genetics 2013

Journal: :Canadian Medical Association Journal 2013

2015
Dubravka Vučićević Olivia Corradin Evgenia Ntini Peter C Scacheri Ulf Andersson Ørom

Long non-coding RNAs (ncRNA) have recently been demonstrated to be expressed from a subset of enhancers and to be required for the distant regulation of gene expression. Several approaches to predict enhancers have been developed based on various chromatin marks and occupancy of enhancer-binding proteins. Despite the rapid advances in the field, no consensus how to define tissue specific enhanc...

2015
Lijing Yao Benjamin P. Berman Peggy J. Farnham

Enhancers are short regulatory sequences bound by sequence-specific transcription factors and play a major role in the spatiotemporal specificity of gene expression patterns in development and disease. While it is now possible to identify enhancer regions genomewide in both cultured cells and primary tissues using epigenomic approaches, it has been more challenging to develop methods to underst...

2016
Dimitris Kleftogiannis Panos Kalnis Vladimir B. Bajic

Enhancers are cis-acting DNA elements that play critical roles in distal regulation of gene expression. Identifying enhancers is an important step for understanding distinct gene expression programs that may reflect normal and pathogenic cellular conditions. Experimental identification of enhancers is constrained by the set of conditions used in the experiment. This requires multiple experiment...

Journal: :IEEE Access 2021

Enhancers are short DNA regulatory elements which play a vital role in gene expression. Due to their important roles genomics, several computational models have been proposed the literature for identification of enhancers and strengths using traditional machine learning algorithms, however, unable identify strength with reasonable accuracy because high non-linearity sequences. This article prop...

Journal: :iranian journal of pharmaceutical research 0
jun shi 1- school of pharmacy, east china university of science and technology, shanghai 200237, pr china. 2- department of chemistry, tsinghua university, beijing 100084, pr china. wen-juan cong engineering research center of modern preparation technology of tcm (ministry of education), shanghai university of traditional chinese medicine, shanghai 201203, pr china. yi-ming wang department of chemistry, tsinghua university, beijing 100084, pr china. qing-fei liu school of medicine, tsinghua university, beijing 100084, pr china. guo-an luo 1- school of pharmacy, east china university of science and technology, shanghai 200237, pr china. 2- department of chemistry, tsinghua university, beijing 100084, pr china.

the aim of the present study was to investigate the influence and the mechanisms of cineoleand terpineol on the in-vitro transdermal delivery of huperzine a from microemulsions, andtheir potential synergistic effect on the permeation enhancement. the transdermal deliveryof huperzine a from microemulsions with different concentrations of cineole and terpineolthrough the rat abdominal skin was de...

Journal: :iranian journal of pharmaceutical research 0
n noorani afshin zarghi

many properties of chemicals depend on their stereochemistry. among these, the effects of stereoisomerism on percutaneous absorption of drugs are not well studied. we have previously shown that permeation of tretinoin and isotretinoin (two geometric isomers) through hydrophilic enhancers-treated rat skin is stereoselective. as, depending on their lipophilicity, penetration enhancers can change ...

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