Enzymatic Assay

15 publications found.

Zinc finger oxidation of Fpg/Nei DNA glycosylases by 2-thioxanthine: biochemical and X-ray structural characterization.
Published: December, 2014

Abstract: DNA glycosylases from the Fpg/Nei structural superfamily are base excision repair enzymes involved in the removal of a wide variety of mutagen and potentially lethal oxidized purines and pyrimidines. Although involved in genome stability, the rece...
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Neuropeptide Y promotes adipogenesis in chicken adipose cells in vitro.
Published: November, 2014

Abstract: Neuropeptide Y is an evolutionarily conserved neurotransmitter that stimulates food intake in higher vertebrate species and promotes adipogenesis in mammals. The objective of this study was to determine if NPY also enhances adipogenesis in birds, ...
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Lipid peroxidation product 4-hydroxy-2-nonenal modulates base excision repair in human cells.
Published: July, 2014

Abstract: Oxidative-stress-driven lipid peroxidation (LPO) is involved in the pathogenesis of several human diseases, including cancer. LPO products react with cellular proteins changing their properties, and with DNA bases to form mutagenic etheno-DNA addu...
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Bone morphogenetic protein-7 regulates Snail signaling in carbon tetrachloride-induced fibrosis in the rat liver.
Published: December, 2012

Abstract: The aim of this study was to explore the molecular mechanism of the bone morphogenetic protein-7 (BMP-7) downregulation of Snail-mediated E-cadherin repression and mesenchymal-epithelial transition (MET) induction, since little is presently known ...
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Ubiquitin-dependent regulation of phospho-AKT dynamics by the ubiquitin E3 ligase, NEDD4-1, in the IGF-1 response.
Published: November, 2012

Abstract: AKT is a critical effector kinase downstream of the PI3K pathway that regulates a plethora of cellular processes including cell growth, death, differentiation and migration. Mechanisms underlying activated phospho-AKT (pAKT) translocation to its a...
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Periodontitis in established rheumatoid arthritis patients: a cross-sectional clinical, microbiological and serological study.
Published: October, 2012

Abstract: ABSTRACT: INTRODUCTION: The association between rheumatoid arthritis (RA) and periodontitis is suggested to be linked to the periodontal pathogen Porphyromonas gingivalis. Colonization of P. gingivalis in the oral cavity of RA patients has been sc...
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FM19G11 Favors Spinal Cord Injury Regeneration and Stem Cell Self-Renewal by Mitochondrial Uncoupling and Glucose Metabolism Induction.
Published: August, 2012

Abstract: Spinal cord injury is a major cause of paralysis with no currently effective therapies. Induction of self-renewal and proliferation of endogenous regenerative machinery with non-invasive and non-toxic therapies could constitute a real hope and an ...
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Alterations of glucose metabolism in Escherichia coli mutants defective in respiratory-chain enzymes.
Published: April, 2012

Abstract: The effects of reduced efficiency of proton-motive force (pmf) generation on glucose metabolism were investigated in Escherichia coli respiratory-chain mutants. The respiratory chain of E. coli consists of two NADH dehydrogenases and three termina...
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Improvement of the redox balance increases L-valine production by Corynebacterium glutamicum under oxygen deprivation conditions.
Published: February, 2012

Abstract: Production of L-valine under oxygen deprivation conditions by Corynebacterium glutamicum lacking the lactate dehydrogenase gene ldhA and overexpressing the L-valine biosynthesis genes ilvBNCDE was repressed. This was attributed to imbalanced cofac...
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Notch1 binds and induces degradation of Snail in hepatocellular carcinoma.
Published: November, 2011

Abstract: BACKGROUND: Hepatocellular carcinoma (HCC) is a common, highly invasive malignant tumor associated with a high mortality rate. We previously reported that the aberrant expression of Snail via activation of reactive oxygen species contributes to th...
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Expression profile of the sphingosine kinase signalling system in the lung of patients with chronic obstructive pulmonary disease.
Published: November, 2011

Abstract: AIMS: Chronic obstructive pulmonary disease (COPD) is a leading cause of death worldwide. Despite its importance, treatment methods are limited and restricted to symptomatic care, highlighting the urgent need for new treatment options. Tissue dama...
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Reversible epigenetic fingerprint-mediated glutathione-S-transferase P1 gene silencing in human leukemia cell lines.
Published: June, 2011

Abstract: Glutathione-S-transferase P1 (GSTP1) gene is commonly silenced by CpG island promoter hypermethylation in prostate, breast, and liver cancers. However, mechanisms leading to GSTP1 repression by promoter hypermethylation in leukemia and its relatio...
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Demonstrating polymorphic miRNA-mediated gene regulation in vivo: application to the g+6223G->A mutation of Texel sheep.
Published: September, 2010

Abstract: We herein describe the development of a biochemical method to evaluate the effect of single nucleotide polymorphisms (SNPs) in target genes on their regulation by microRNAs in vivo. The method is based on the detection of allelic imbalance in RNAs...
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Conversion of cholic acid and chenodeoxycholic acid into their 7-oxo derivatives by Bacteroides intestinalis AM-1 isolated from human feces.
Published: April, 2009

Abstract: Secondary bile acid-producing bacteria were isolated from human feces to improve our appreciation of the functional diversity and redundancy of the intestinal microbiota. In total, 619 bacterial colonies were isolated using a nutrient-poor agar me...
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Loss of Sirt1 Promotes Prostatic Intraepithelial Neoplasia, Reduces Mitophagy, and Delays Park2 Translocation to Mitochondria

Abstract: Prostatic intraepithelial neoplasia is a precursor to prostate cancer. Herein, deletion of the NAD+-dependent histone deacetylase Sirt1 induced histological features of prostatic intraepithelial neoplasia at 7 months of age; these features were as...
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