Diagenode

Tissue Homogenization

31 publications found.

Experimental acute lung injury induces multi-organ epigenetic modifications in key angiogenic genes implicated in sepsis-associated endothelial dysfunction.
Published: May, 2015

Abstract: INTRODUCTION: The Tie2/angiopoietin (Tie2/Ang) and vascular endothelial growth factor receptor-ligand systems (VEGFR/VEGF) are recognized to play important roles in the regulation of microvascular endothelial function. Downregulation of these gen...
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Roles of hepatic glucokinase in intertissue metabolic communication: Examination of novel liver-specific glucokinase knockout mice.
Published: May, 2015

Abstract: Glucokinase is expressed principally in pancreatic β-cells and hepatocytes, and catalyzes the phosphorylation of glucose to glucose-6-phosphate, a rate-limiting step of glycolysis. To better understand the roles of hepatic glucokinase, we generate...
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Methylation of ribosomal RNA by NSUN5 is a conserved mechanism modulating organismal lifespan.
Published: January, 2015

Abstract: Several pathways modulating longevity and stress resistance converge on translation by targeting ribosomal proteins or initiation factors, but whether this involves modifications of ribosomal RNA is unclear. Here, we show that reduced levels of th...
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A novel analytical brain block tool to enable functional annotation of discriminatory transcript biomarkers among discrete regions of the fronto-limbic circuit in primate brain.
Published: December, 2014

Abstract: Fronto-limbic circuits in the primate brain are responsible for executive function, learning and memory, and emotions, including fear. Consequently, changes in gene expression in cortical and subcortical brain regions housing these circuits are as...
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Paternal diet defines offspring chromatin state and intergenerational obesity.
Published: December, 2014

Abstract: The global rise in obesity has revitalized a search for genetic and epigenetic factors underlying the disease. We present a Drosophila model of paternal-diet-induced intergenerational metabolic reprogramming (IGMR) and identify genes required for ...
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Up to date sample preparation of proteins for mass spectrometric analysis.
Published: September, 2014

Abstract: Abstract For the identification of proteins from biological samples by mass spectrometry there are two scenarios. Proteins are pre-fractionated in some way or are analysed as a complex mixture (shotgun). Shotgun proteomics recently became more pop...
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Retinoblastoma protein (RB) interacts with E2F3 to control terminal differentiation of Sertoli cells.
Published: June, 2014

Abstract: The retinoblastoma protein (RB) is essential for normal cell cycle control. RB function depends, at least in part, on interactions with the E2F family of DNA-binding transcription factors (E2Fs). To study the role of RB in the adult testis, a Sert...
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Chronic alcohol consumption leads to neurochemical changes in the nucleus accumbens that are not fully reversed by withdrawal.
Published: June, 2014

Abstract: Neuropeptide Y (NPY)- and acetylcholine-containing interneurons of the nucleus accumbens (NAc) seem to play a major role in the rewarding effects of alcohol. This study investigated the relationship between chronic alcohol consumption and subseque...
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GABA and glutamate pathways are spatially and developmentally affected in the brain of Mecp2-deficient mice.
Published: March, 2014

Abstract: Proper brain functioning requires a fine-tuning between excitatory and inhibitory neurotransmission, a balance maintained through the regulation and release of glutamate and GABA. Rett syndrome (RTT) is a rare genetic disorder caused by mutations ...
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The transcription factor CREB has no non-redundant functions in hepatic glucose metabolism in mice.
Published: March, 2014

Abstract: AIMS/HYPOTHESIS: Excessive hepatic glucose production is a hallmark of insulin resistance in type 2 diabetes. The cAMP responsive transcription factor cAMP responsive element binding protein (CREB), thought to be a key activator of the hepatic glu...
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A Drosophila in vivo screen identifies store-operated calcium entry as a key regulator of adiposity.
Published: February, 2014

Abstract: To unravel the evolutionarily conserved genetic network underlying energy homeostasis, we performed a systematic in vivo gene knockdown screen in Drosophila. We used a transgenic RNAi library enriched for fly orthologs of human genes to functional...
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The role of plasma membrane estrogen receptors in mediating the estrogen induction of progesterone receptors in hypothalamic ventromedial neurons.
Published: February, 2014

Abstract: Progesterone is well known for its role in the modulation of sexual behavior. In the ventromedial nucleus (VMN), a part of the mediobasal hypothalamus which regulates sexual behavior in female rodents, estrogens induce the expression of progestero...
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The nuclear receptor Rev-erbα controls circadian thermogenic plasticity.
Published: November, 2013

Abstract: Circadian oscillation of body temperature is a basic, evolutionarily conserved feature of mammalian biology. In addition, homeostatic pathways allow organisms to protect their core temperatures in response to cold exposure. However, the mechanism ...
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Frequent alteration of the protein synthesis of enzymes for glucose metabolism in hepatocellular carcinomas.
Published: November, 2013

Abstract: BACKGROUND: Cancer cells show enhanced glycolysis and inhibition of oxidative phosphorylation, even in the presence of sufficient oxygen (aerobic glycolysis). Glycolysis is much less efficient for energy production than oxidative phosphorylation, ...
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Precision-cut liver slices of Atlantic cod (Gadus morhua): An in vitro system for studying the effects of environmental contaminants.
Published: November, 2013

Abstract: The Atlantic cod (Gadus morhua) is an economically important species commonly consumed by humans. The widespread distribution of cod in the North Atlantic Ocean makes it vulnerable to effluents from human activities, such as coastal industries and...
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tRNA methyltransferase homolog gene TRMT10A mutation in young onset diabetes and primary microcephaly in humans.
Published: October, 2013

Abstract: We describe a new syndrome of young onset diabetes, short stature and microcephaly with intellectual disability in a large consanguineous family with three affected children. Linkage analysis and whole exome sequencing were used to identify the ca...
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Phosphorylation of RNA polymerase II is independent of P-TEFb in the C. elegans germline.
Published: September, 2013

Abstract: RNA polymerase II (Pol II) elongation in metazoans is thought to require phosphorylation of serine 2 (Ser2-P) of the Pol II C-terminal domain (CTD) by the P-TEFb complex, CDK-9/cyclin T. Another Ser2 kinase complex, CDK-12/cyclin K, which requires...
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Role of estrogen receptor α and β in the induction of progesterone receptors in hypothalamic ventromedial neurons.
Published: May, 2013

Abstract: The estrogen induction of progesterone receptors (PRs) in the ventrolateral division of the hypothalamic ventromedial nucleus (VMNvl) is critical for the regulation of female sexual behavior. VMNvl neurons express PRs and both types of estrogen re...
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Overexpression of HGF attenuates the degeneration of Purkinje cells and Bergmann glia in a knockin mouse model of spinocerebellar ataxia type 7.
Published: June, 2012

Abstract: Spinocerebellar ataxia type 7 (SCA7) is an autosomal dominant disorder associated with cerebellar neurodegeneration caused by expansion of a CAG repeat in the ataxin-7 gene. Hepatocyte growth factor (HGF), a pleiotrophic growth factor, displays hi...
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The cytokine temporal profile in rat cortex after controlled cortical impact.
Published: January, 2012

Abstract: Cerebral inflammatory responses may initiate secondary cascades following traumatic brain injury (TBI). Changes in the expression of both cytokines and chemokines may activate, regulate, and recruit innate and adaptive immune cells associated with...
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Coordinated cancer germline antigen promoter and global DNA hypomethylation in ovarian cancer: association with the BORIS/CTCF expression ratio and advanced stage.
Published: April, 2011

Abstract: PURPOSE: Cancer germline (CG) antigens are frequently expressed and hypomethylated in epithelial ovarian cancer (EOC), but the relationship of this phenomenon to global DNA hypomethylation is unknown. In addition, the potential mechanisms leading ...
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Proteomic Analysis of Anti-inflammatory Effects of a Kampo (Japanese Herbal) Medicine "Shoseiryuto (Xiao-Qing-Long-Tang)" on Airway Inflammation in a Mouse Model.
Published: January, 2011

Abstract: Effects of a Kampo (Japanese herbal) medicine "shoseiryuto (SST, xiao-qing-long-tang in Chinese)", which has been used for the treatment of allergic bronchial asthma clinically, were examined on ovalbumin (OVA)-sensitized allergic airway inflammat...
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CRTC2 (TORC2) contributes to the transcriptional response to fasting in the liver but is not required for the maintenance of glucose homeostasis.
Published: July, 2009

Abstract: The liver contributes to glucose homeostasis by promoting either storage or production of glucose, depending on the physiological state. The cAMP response element-binding protein (CREB) is a principal regulator of genes involved in coordinating th...
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A PP2A regulatory subunit regulates C. elegans insulin/IGF-1 signaling by modulating AKT-1 phosphorylation.
Published: March, 2009

Abstract: The C. elegans insulin/IGF-1 signaling (IIS) cascade plays a central role in regulating life span, dauer, metabolism, and stress. The major regulatory control of IIS is through phosphorylation of its components by serine/threonine-specific protein...
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Approaches to determine expression of inflammatory cytokines.
Published: January, 2009

Abstract: There is an increasing awareness of the role of inflammation in cancer. Immune responses can limit the growth of some tumors, but paradoxically, may promote the growth of others. Cytokines are critical mediators of both the innate and the adaptive...
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Epigenetic regulation of histone H3 serine 10 phosphorylation status by HCF-1 proteins in C. elegans and mammalian cells.
Published: January, 2007

Abstract: BACKGROUND: The human herpes simplex virus (HSV) host cell factor HCF-1 is a transcriptional coregulator that associates with both histone methyl- and acetyltransferases, and a histone deacetylase and regulates cell proliferation and division. In ...
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Waking up Streptomyces Secondary Metabolism by Constitutive Expression of Activators or Genetic Disruption of Repressors.

Abstract: Streptomycete bacteria are renowned as a prolific source of natural products with diverse biological activities. Production of these metabolites is often subject to transcriptional regulation: the biosynthetic genes remain silent until the require...
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Comparison of protein precipitation methods for various rat brain structures prior to proteomic analysis

Abstract: Sample preparation is a fundamental step in proteomic methodologies. The quality of the results from a proteomic experiment is dependent on the nature of the sample and the properties of the proteins. In this study, various pre-treatment methods w...
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Effect of Octopamine Agonists on Larval-Pupal Transformation of Red Flour Beetle (Tribolium freemani Hinton)

Abstract: When a larva of the flour beetle Tribolium freemani (Hinton) was isolated (one larva per vial), the larva pupated within 6 days, whereas at higher larval densities (two and four larvae per vial) pupation was delayed. Meanwhile, there was an increa...
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Quantitative Proteomics Identifies Activation of Hallmark Pathways of Cancer in Patient Melanoma

Abstract: Molecular pathways regulating melanoma initiation and progression are potential targets of therapeutic development for this aggressive cancer. Identification and molecular analysis of these pathways in patients has been primarily restricted to tar...
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Analysis of sDMA modifications of PIWI proteins.

Abstract: Arginine methylation is an important posttranslational protein modification that modulates protein function for a wide range of biological processes. PIWI proteins, a subclade of the Argonaute family proteins, contain evolutionarily conserved symm...
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