«Based on our data, which is comprised of
gene expression across 16 brain regions, we found that the most distinct region, i.e. the region where we observe more human - specific differences in gene expression, is the striatum, a region involved in motor coordination, reward, and decision - making,» lead author André M. Sousa of the Yale School of Medicine and the Kavli Institute for Neuroscience told Seeker.
Sexually dimorphic
gene expression across organs vary, between 14 % in brain and 70 % in liver, with mostly small effects (185).
Characterization of patterns of
gene expression across tissues, individuals and species (Guigo, Estivill and Notredame's groups, Genome Research 2012, Genome Research 2014, Nature 2014, Nature 2014, Nature Communications 2015, Science 2015, PNAS 2015, Genome Biology 2016).
These efforts include theAllen Brain Atlas, which has spatially mapped
gene expression across the human brain, and the NIH» sBRAIN Initiative, which is accelerating the development and application of new technologies.
Working with Bhaduri, who has a background in statistics and bioinformatics, Pollen and Nowakowski began exploring how specific classes of neurons and stem cells in the developing brain contribute to normal brain growth as well as to neurodevelopmental disease, and have begun to build a comprehensive, open - source atlas of
gene expression across the developing brain, which they hope will serve as a resource for other scientists.
This quite quickly led to technical improvements in how we could observe
gene expression across multiple life - forms, leading to new environmental biology discoveries.
After 3 months, the researchers drew blood samples from the monkeys, purified five different types of immune cells, and measured
gene expression across their entire genomes.
Specifically, the study reveals a mechanism that helps explain how dividing cells pass patterns of epigenetic information called methyl tags to their daughter cells, a crucial part of regulating
gene expression across cell generations.
Not exact matches
Maternal care,
gene expression, and the transmission of individual differences in stress reactivity
across generations.
Therefore, variation in RNA quality
across lactation stage must be considered when interpreting
gene expression results
across postpartum time points.
For 50 years, the fundamental principles and mechanisms of the epigenetic regulation of
gene expression have been explored
across myriad organisms and human diseases.
«We used the Allen Human Brain Atlas data to quantify how consistent the patterns of
expression for various
genes are
across human brains, and to determine the importance of the most consistent and reproducible
genes for brain function.»
Despite the anatomical complexity of the brain and the complexity of the human genome, most of the patterns of
gene usage
across all 20,000
genes could be characterized by just 32
expression patterns.
This program, resulting in shorter 3 ′ UTRs, is a characteristic of
gene expression during immune cell activation and correlates with proliferation
across diverse cell types and tissues.
Bautista, Brem, and collaborators sought out
genes whose
expression was correlated with itch behavior
across genetically distinct mouse strains.
«We identified,
across the genome, that enhancer RNAs were the most common type of RNA that bound to CBP, and that by making this interaction, eRNAs play a crucial role in regulating CBP activity and
gene expression.»
The researchers in the Greenberg lab found that
across all analyzed datasets, and in studies of different mouse brain regions, in the absence of MECP2 the
expression of long
genes is increased.
- catenin pathway serves as a signaling hub that helps cells
across species adjust
gene expression in response to their environment.
Across all four cancer types, the new method of selecting candidate
genes based on inter-tumor variation in
gene expression outperformed the other methods, including the standard method of comparing mean
expression in adjacent normal and tumor tissues.
They built a new software tool called MIxT (Matched Interactions
across Tissues) that uses computational and statistical methods to find and investigate links between
gene expression in different body tissues.
Rather than listing specific
genes that manifest themselves differently, or are differentially expressed, between queens and workers, the team looked for
genes with similar
expression patterns
across samples that may be involved in maintaining the structural, behavioural and functional differences observed between queens and workers.
Michael Skinner's claim that chemicals can cause changes to
gene expression that persist
across multiple generations of animals has stirred excitement — and outrage.
In their new Science paper, the researchers analyzed
gene expression in single cells
across key developmental time points and from different regions of the brain.
We predicted a link between
gene expression evolution
across species and the degree of sexual selection, but this is the first statistical evidence for it and shows how powerful sexual selection can be in leading to major changes in how a
gene is expressed.»
Scientists performed an integrative transcriptomic analysis, comparing
gene expression networks
across all three groups of participants and finding unique molecular profiles and pathway enrichment patterns.
The transmission of different states of
gene expression through multiple cell divisions and
across generations has been termed «epigenetic,» since the underlying DNA sequence is identical in both states.
Correlation of
gene expression occurred
across lean and obese mice, defining a common transcriptional response to variations in adiposity.
The most significant changes occurred in a
gene called RbAp48, whose
expression declined steadily with aging
across the study subjects.
To work out the genetic basis, Duke University postdoctoral associate Bob Fitak and biology professor Sönke Johnsen and colleagues investigated changes in
gene expression that take place
across the rainbow trout genome when the animal's magnetic sense is disrupted.
(Mixture - of - Isoforms) for isoform quantitation using RNA - Seq is a probabilistic framework that quantitates the
expression level of alternatively spliced
genes from RNA - Seq data, and identifies differentially regulated isoforms or exons
across samples.
Most of these were invalidated when challenged with experimental data generated in Smith's laboratory, which measured
gene expression of ESCs
across 23 different cell culture conditions, all of which maintained pluripotency.
The ability of Nanopore sequencing to define the complete exonic structure of CACNA1C allows us to identify known and novel
gene isoforms, including novel exons and multi-exonic skipping events and their
expression across multiple brain regions.
・ Discovery that the defense mechanism against exogenous
gene expression, and DNA degradation activity, differ
across cell lines.
Now researchers at UC San Francisco have taken the first step toward a comprehensive atlas of
gene expression in cells
across the developing human brain, making available new insights into how specific cells and
gene networks contribute to building this most complex of organs, and serving as a resource for researchers around the world to study the interplay between these genetic programs and neurodevelopmental disorders such as autism, intellectual disability and schizophrenia.
The evidence of ortholog
genes expression which likely associated with Smad proteins, Wnt, TGF - β signaling pathways, and cartilage formation in S. pistillata supports previous reports suggesting that
gene regulatory pathways of development and biomineralization processes
across the metazoan evolution are considerably conserved (Jackson et al., 2007; Marin et al., 2008).
Gene - level expression values were represented by fragments per kilobase exon per million reads mapped (FPKM) and a consensus FPKM was determined for each gene based on its representation across biological replica
Gene - level
expression values were represented by fragments per kilobase exon per million reads mapped (FPKM) and a consensus FPKM was determined for each
gene based on its representation across biological replica
gene based on its representation
across biological replicates.
The method, PrediXcan, estimates
gene expression levels
across the whole genome — a better measure of biological action than single mutations — and integrates it with genome - wide association study (GWAS) data.
On Supplementary Fig. 36c, we show the number of most informative
genes (defined as the union of
genes with importance > = 0.1
across all the 13 models in the case of the
gene expression model, and the union of the
genes with importance > = 0.1
across the 3 models in the case of TIN, with «importance» being a measure computed by xgboost) with respect to each tissue and data type.
The bags» locations in the genome are similar
across cell types, although the bags» contents and roles can change from transcription factors (blue OSN oval) and enhancers (red box) that promote the
gene (green)
expression (left diagram) or to repressors (right diagram) that inhbit
gene expression (gray box).
a Distribution of Pearson correlation between
gene expression and PMI,
across the different tissues (sorted by sample size, in parenthesis).
IMPRINTOME STOP SIGNS:
Gene expression patterns for 42 imprinted
genes (y axis) vary
across diverse tissues (x axis), with redder boxes denoting stronger skewing towards just one allele.
We work
across disciplines and use a variety of techniques including microfluidics, standard microscopies (electron, optical, fluorescence, confocal), spectroscopies (fluorescence, UV, CD), scattering techniques (X-ray, light), protein
expression and characterization and cell - free
gene expression to investigate the utility of coacervate microdroplets as robust reaction compartments and cellular mimics.
Further discussion on detectable and tissue specificity
expression and
gene expression patterns
across tissues can be found here25.
The extensive data sets of allele - specific
expression across multiple tissues have allowed us to identify imprinted
genes and characterize their properties.
The researchers thus went on to study the
expression of Wnt
genes during regeneration, and found that different members of the
gene family were active at different locations
across the planarian's head - to - tail axis.
RNA - seq technology offers a rapid and scalable approach to characterize how
gene expression changes in response to experimental manipulations, and is applicable
across a wide range of taxa.
They focused their search on
expression levels of two sets of
genes, those that remained largely unchanged
across all four species, suggesting that there was little room — or need — for improvement, and those that changed most dramatically, usually in the human lineage — an indication of powerful incentives to adapt to a changing environment.
Points with a mean counts below the dashed line were filtered prior to multiple test correction, as
genes with low mean counts
across conditions have little or no power to detect differential
expression (see methods for more details).
The
gene - of - interest is first inspected on three aspects in the BXD GRP, i.e. the existence of genetic variations, e (p) QTLs, and its
expression pattern
across strains.
To compare the
expression values
across genes and conditions, raw count data was transformed into fragments per kilobase of exon per million fragments (FPKM) with the formula: