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https://www.readbyqxmd.com/read/28212397/a-targeted-gene-expression-platform-allows-for-rapid-analysis-of-chemical-induced-antioxidant-mrna-expression-in-zebrafish-larvae
#1
Margaret G Mills, Evan P Gallagher
Chemical-induced oxidative stress and the biochemical pathways that protect against oxidative damage are of particular interest in the field of toxicology. To rapidly identify oxidative stress-responsive gene expression changes in zebrafish, we developed a targeted panel of antioxidant genes using the Affymetrix QuantiGene Plex (QGP) platform. The genes contained in our panel include eight putative Nrf2 (Nfe2l2a)-dependent antioxidant genes (hmox1a, gstp1, gclc, nqo1, prdx1, gpx1a, sod1, sod2), a stress response gene (hsp70), an inducible DNA damage repair gene (gadd45bb), and three reference genes (actb1, gapdh, hprt1)...
2017: PloS One
https://www.readbyqxmd.com/read/28209402/chemokine-receptor-patterns-and-right-heart-failure-in-mechanical-circulatory-support
#2
Aditi Nayak, Colin Neill, Robert L Kormos, Luigi Lagazzi, Indrani Halder, Charles McTiernan, Jennifer Larsen, Ana Inashvili, Jeffrey Teuteberg, Timothy N Bachman, Karen Hanley-Yanez, Dennis M McNamara, Marc A Simon
BACKGROUND: Right ventricular failure (RVF) complicates 9% to 44% of left ventricular assist device (LVAD) implants post-operatively. Current prediction scores perform only modestly in validation studies, and do not include immune markers. Chemokines are inflammatory signaling molecules with a fundamental role in cardiac physiology and stress adaptation. In this study we investigated chemokine receptor regulation in LVAD recipients who develop RVF. METHODS: Expression of chemokine receptor (CCR) genes 3 to 8 were examined in the peripheral blood of 111 LVAD patients, collected 24 hours before implant...
December 23, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28202345/circulating-human-leucine-rich-%C3%AE-2-glycoprotein-1-mrna-and-protein-levels-to-detect-acute-appendicitis-in-patients-with-acute-abdominal-pain
#3
T H Rainer, L Y Leung, Cpy Chan, Y K Leung, N M Cheng, Pbs Lai, Y S Cheung, C A Graham
BACKGROUND: Elevated levels of circulating plasma and urine leucine-rich-2-glycoprotein-1 (LRG1) protein has been found in patients with acute appendicitis (AA) and may be useful for diagnosis. This study aimed to investigate whether combined tests including circulating LRG1 mRNA levels improves the early diagnosis of AA. METHODS: Between December 2011 and October 2012, a prospective study was conducted on patients aged 18years or older presenting to the ED with acute abdominal pain (<7days of symptom onset)...
February 12, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28197134/identification-of-a-novel-alternaria-alternata-strain-able-to-hyperparasitize-puccinia-striiformis-f-sp-tritici-the-causal-agent-of-wheat-stripe-rust
#4
Li Zheng, Jie Zhao, Xiaofei Liang, Gangming Zhan, Shuchang Jiang, Zhensheng Kang
The obligate bitrophic fungus Puccinia striiformis f. sp. tritici (Pst) causes stripe (yellow) rust on wheat worldwide. Here, we report a novel fungal strain able to hyperparasitize Pst. The strain was isolated from gray-colored rust pustules, and was identified as Alternaria alternata (Fr.: Fr.) keissler based on a combination of morphological characteristics and multi-locus (ITS, GAPDH, and RPB2) phylogeny. Upon artificial inoculation, the hyperparasite reduced the production and viability of urediniospores, and produced a typical gray-colored rust pustule symptom...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28196013/prognostic-implications-of-expression-profiling-for-gemcitabine-related-genes-hent1-dck-rrm1-rrm2-in-patients-with-resectable-pancreatic-adenocarcinoma-receiving-adjuvant-chemotherapy
#5
Marek Sierzega, Radosław Pach, Piotr Kulig, Janusz Legutko, Jan Kulig
OBJECTIVES: The aim of this study was to examine the relevance of expression profiling of 4 genes involved in the action of gemcitabine among patients with pancreatic ductal-cell adenocarcinoma (PDAC). METHODS: A group of 100 patients who underwent pancreatic resections for PDAC and received adjuvant chemotherapy with gemcitabine between 2007 and 2010 was identified. Expression of mRNAs for human equilibrative nucleoside transporter 1 (hENT1), ribonucleotide reductase subunits (RRM1, RRM2), and deoxycytidine kinase (dCK) was examined by quantitative real-time polymerase chain reaction, normalized to glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and dichotomized into groups of low and moderate/high expression levels grouped by tertiles...
February 14, 2017: Pancreas
https://www.readbyqxmd.com/read/28187310/proteomic-analysis-of-liver-tissue-from-rainbow-trout-oncorhynchus-mykiss-under-high-rearing-density-after-administration-of-dietary-vitamin-e-and-selenium-nanoparticles
#6
Mahdi Naderi, Saeed Keyvanshokooh, Amir Parviz Salati, Alireza Ghaedi
The aim of the present study was to investigate the effects of dietary vitamin E (vit E) and selenium nanoparticles (nanoSe) on liver proteome profile of rainbow trout under high density condition. To correlate the proteome modifications with physiological aspects, growth, serum metabolites (cortisol, glucose, lactate, ALT, AST, and ALP), and liver antioxidant-related parameters (SOD, GPx, CAT, and MDA) were also examined. A total of 1275 fish (average weight of 42.6±2.3g) were stocked into 12 tanks at a density of 80kgm(-3)...
February 4, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28186172/appropriateness-of-reference-genes-for-normalizing-messenger-rna-in-mouse-2-4-dinitrobenzene-sulfonic-acid-dnbs-induced-colitis-using-quantitative-real-time-pcr
#7
Nour Eissa, Laëtitia Kermarrec, Hayam Hussein, Charles N Bernstein, Jean-Eric Ghia
2,4-Dinitrobenzene sulfonic acid (DNBS)-induced colitis is an experimental model that mimics Crohn's disease. Appropriateness of reference genes is crucial for RT-qPCR. This is the first study to determine the stability of reference gene expression (RGE) in mice treated with DNBS. DNBS experimental Colitis was induced in male C57BL/6 mice. RNA was extracted from colon tissue and comprehensive analysis of 13 RGE was performed according to predefined criteria. Relative colonic TNF-α and IL-1β mRNA levels were calculated...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28184026/identification-of-tmem208-and-pqlc2-as-reference-genes-for-normalizing-mrna-expression-in-colorectal-cancer-treated-with-aspirin
#8
Yuanyuan Zhu, Chao Yang, Mingjiao Weng, Yan Zhang, Chunhui Yang, Yinji Jin, Weiwei Yang, Yan He, Yiqi Wu, Yuhua Zhang, Guangyu Wang, Riju James RajkumarEzakiel Redpath, Lei Zhang, Xiaoming Jin, Ying Liu, Yuchun Sun, Ning Ning, Yu Qiao, Fengmin Zhang, Zhiwei Li, Tianzhen Wang, Yanqiao Zhang, Xiaobo Li
Numerous evidences indicate that aspirin usage causes a significant reduction in colorectal cancer. However, the molecular mechanisms about aspirin preventing colon cancer are largely unknown. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) is a most frequently used method to identify the target molecules regulated by certain compound. However, this method needs stable internal reference genes to analyze the expression change of the targets. In this study, the transcriptional stabilities of several traditional reference genes were evaluated in colon cancer cells treated with aspirin, and also, the suitable internal reference genes were screened by using a microarray and were further identified by using the geNorm and NormFinder softwares, and then were validated in more cell lines and xenografts...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28182746/selection-and-evaluation-of-new-reference-genes-for-rt-qpcr-analysis-in-epinephelus-akaara-based-on-transcriptome-data
#9
Huan Wang, Xiang Zhang, Qiaohong Liu, Xiaochun Liu, Shaoxiong Ding
Groupers are an economically important fish species in world fishery markets. Because many studies using RT-qPCR have addressed gene expression in groupers, appropriate reference genes are required to obtain reliable and accurate results. In this study, the most suitable reference genes were identified from eleven candidate genes of one of the most valuable species, Epinephelus akaara, in a range of different experimental conditions. Using the software packages geNorm, NormFinder, BestKeeper and refFinder, three traditionally used reference genes, β-actin (β-ACT), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and beta-2-microglobulin (B2M), were identified as not suitable for E...
2017: PloS One
https://www.readbyqxmd.com/read/28182697/identification-of-reference-genes-for-qpcr-analysis-during-hasc-long-culture-maintenance
#10
Silvia Palombella, Cristina Pirrone, Mario Cherubino, Luigi Valdatta, Giovanni Bernardini, Rosalba Gornati
Up to now quantitative PCR based assay is the most common method for characterizing or confirming gene expression patterns and comparing mRNA levels in different sample populations. Since this technique is relative easy and low cost compared to other methods of characterization, e.g. flow cytometry, we used it to typify human adipose-derived stem cells (hASCs). hASCs possess several characteristics that make them attractive for scientific research and clinical applications. Accurate normalization of gene expression relies on good selection of reference genes and the best way to choose them appropriately is to follow the common rule of the "Best 3", at least three reference genes, three different validation software and three sample replicates...
2017: PloS One
https://www.readbyqxmd.com/read/28177569/the-oxidized-thiol-proteome-in-aging-and-cataractous-mouse-and-human-lens-revealed-by-icat-labeling
#11
Benlian Wang, Grant Hom, Sheng Zhou, Minfei Guo, Binbin Li, Jing Yang, Vincent M Monnier, Xingjun Fan
Age-related cataractogenesis is associated with disulfide-linked high molecular weight (HMW) crystallin aggregates. We recently found that the lens crystallin disulfidome was evolutionarily conserved in human and glutathione-depleted mouse (LEGSKO) cataracts and that it could be mimicked by oxidation in vitro (Mol. Cell Proteomics, 14, 3211-23 (2015)). To obtain a comprehensive blueprint of the oxidized key regulatory and cytoskeletal proteins underlying cataractogenesis, we have now used the same approach to determine, in the same specimens, all the disulfide-forming noncrystallin proteins identified by ICAT proteomics...
November 13, 2016: Aging Cell
https://www.readbyqxmd.com/read/28174179/s100b-impairs-glycolysis-via-enhanced-poly-adp-ribosyl-ation-of-glyceraldehyde-3-phosphate-dehydrogenase-in-rodent-muscle-cells
#12
Kaori Hosokawa, Yoji Hamada, Atsushi Fujiya, Masatoshi Murase, Ryuya Maekawa, Yasuhiro Niwa, Takako Izumoto, Yusuke Seino, Shin Tsunekawa, Hiroshi Arima
S100 calcium-binding protein B (S100B), a multifunctional macromolecule mainly expressed in nerve tissues and adipocytes, has been suggested to contribute to the pathogenesis of obesity. To clarify the role of S100B in insulin action and glucose metabolism in peripheral tissues, we investigated the effect of S100B on glycolysis in myoblast and myotube cells. Rat myoblast L6 cells were treated with recombinant mouse S100B to examine glucose consumption, lactate production, glycogen accumulation, glycolytic metabolites and enzyme activity, insulin signaling, and poly(ADP-ribosyl)ation of glyceraldehyde-3-phosphate dehydrogenase (GAPDH)...
February 7, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28168807/hypoxia-induced-hif1%C3%AE-targets-in-melanocytes-reveal-a-molecular-profile-associated-with-poor-melanoma-prognosis
#13
Stacie K Loftus, Laura L Baxter, Julia C Cronin, Temesgen D Fufa, William J Pavan
Hypoxia and HIF1α signaling direct tissue-specific gene responses regulating tumor progression, invasion and metastasis. By integrating HIF1α knockdown and hypoxia-induced gene expression changes, this study identifies a melanocyte-specific, HIF1α-dependent / hypoxia-responsive gene expression signature. Integration of these gene expression changes with HIF1α ChIP-Seq analysis identifies 81 HIF1α direct target genes in melanocytes. The expression levels for ten of the HIF1α direct targets - GAPDH, PKM, PPAT, DARS, DTWD1, SEH1L, ZNF292, RLF, AGTRAP, and GPC6 - are significantly correlated with reduced time of Disease Free Status (DFS) in melanoma by logistic regression (P-value =0...
February 6, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28167533/glyceraldehyde-3-phosphate-dehydrogenase-gapdh-aggregation-causes-mitochondrial-dysfunction-during-oxidative-stress-induced-cell-death
#14
Hidemitsu Nakajima, Masanori Itakura, Takeya Kubo, Akihiro Kaneshige, Naoki Harada, Takeshi Izawa, Yasu-Taka Azuma, Mitsuru Kuwamura, Ryouichi Yamaji, Tadayoshi Takeuchi
Glycolytic glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a multifunctional protein that also mediates cell death under oxidative stress. We previously reported that the active-site cysteine (Cys-152) of GAPDH plays an essential role in oxidative stress-induced aggregation of GAPDH associated with cell death, and a C152A-GAPDH mutant rescues nitric oxide (NO)-induced cell death by interfering with aggregation of wild type (WT)-GAPDH. However, the detailed mechanism underlying GAPDH-aggregate-induced cell death remains elusive...
February 6, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28166271/transcriptional-deregulation-of-genetic-biomarkers-in-chironomus-riparius-larvae-exposed-to-ecologically-relevant-concentrations-of-di-2-ethylhexyl-phthalate-dehp
#15
Óscar Herrero, Gloria Morcillo, Rosario Planelló
Di(2-ethylhexyl) phthalate (DEHP) is a ubiquitous environmental pollutant used worldwide as a plasticizer and solvent in many formulations. Based on available toxicological data, it has been classified as toxic for reproduction and as an endocrine disruptor. Despite this, ecotoxicological studies in aquatic wildlife organisms are still scarce. In the present work, the toxic molecular alterations caused by DEHP in aquatic larvae of the midge Chironomus riparius have been studied, by analyzing the transcriptional activity of genes related to some vital cellular pathways, such as the ribosomal machinery (rpL4, rpL13), the cell stress response (hsc70, hsp70, hsp40, hsp27), the ecdysone hormone pathway (EcR), the energy metabolism (GAPDH), and detoxication processes (CYP4G)...
2017: PloS One
https://www.readbyqxmd.com/read/28165521/high-selectivity-cytology-via-lab-on-a-disc-western-blotting-of-individual-cells
#16
John J Kim, Elly Sinkala, Amy E Herr
Cytology of sparingly available cell samples from both clinical and experimental settings would benefit from high-selectivity protein tools. To minimize cell handling losses in sparse samples, we design a multi-stage assay using a lab-on-a-disc that integrates cell handling and subsequent single-cell western blotting (scWestern). As the two-layer microfluidic device rotates, the induced centrifugal force directs dissociated cells to dams, which in turn localize the cells over microwells. Cells then sediment into the microwells, where the cells are lysed and subjected to scWestern...
February 6, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28163384/association-between-alcohol-induced-erythrocyte-membrane-alterations-and-hemolysis-in-chronic-alcoholics
#17
Saradamma Bulle, Vaddi Damodara Reddy, Pannuru Padmavathi, Paramahamsa Maturu, Pavan Kumar Puvvada, Varadacharyulu Nallanchakravarthula
The present study aimed to understand the association between erythrocyte membrane alterations and hemolysis in chronic alcoholics. Study was conducted on human male volunteers aged between 35-45 years with a drinking history of 8-10 years. Results showed that plasma marker enzymes AST, ALT, ALP and γGT were increased in alcoholic subjects. Plasma and erythrocyte membrane lipid peroxidation, erythrocyte lysate nitric oxide (NOx) levels were also increased significantly in alcoholics. Furthermore, erythrocyte membrane protein carbonyls, total cholesterol, phospholipid and cholesterol/phospholipid (C/P) ratio were increased in alcoholics...
January 2017: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/28161330/testosterone-increases-ccl-2-expression-in-visceral-adipose-tissue-from-obese-women-of-reproductive-age
#18
Nicolás Crisosto, Cristián Flores, Manuel Maliqueo, Bárbara Echiburú, Jaime Vásquez, Fernando Maluenda, Teresa Sir-Petermann
CONTEXT: Hyperandrogenic states and obesity in women are associated with insulin-resistance. Androgens reduce glucose uptake in adipose cells and increase TNFα production in peripheral monocytes. Inflammatory cytokines have a known detrimental effect on insulin resistance. The aim of the present study was to explore the role of testosterone in local cytokine production in visceral adipose tissue from women of reproductive age. DESIGN: Twenty-four women 18-40 years old, undergoing elective abdominal surgery for benign and non-inflammatory conditions, were recruited for the study...
February 1, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28160493/analysis-of-transcriptional-responses-of-normalizing-genes-on-crassostrea-brasiliana-under-different-experimental-conditions
#19
Gabrielle do Amaral E Silva Müller, Daína de Lima, Flávia Lucena Zacchi, Rômi Sharon Piazza, Karim Hahn Lüchmann, Jacó Joaquim Mattos, Daniel Schlenk, Afonso Celso Dias Bainy
Bivalves show remarkable plasticity to environmental changes and have been proposed as sentinel organisms in biomonitoring. Studies related to transcriptional analysis using quantitative real-time PCR (qRT-PCR) in these organisms have notably increased, imposing a need to identify and validate adequate reference genes for an accurate and reliable analysis. In the present study, nine reference genes were selected from transcriptome data of Crassostrea brasiliana in order to identify their suitability as qRT-PCR normalizer genes...
February 4, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28158898/4pba-strongly-attenuates-endoplasmic-reticulum-stress-fibrosis-and-mitochondrial-apoptosis-markers-in-cyclosporine-treated-human-gingival-fibroblasts
#20
Suresh Ranga Rao, Subbarayan Rajasekaran, Supraja Ajitkumar, Murugan Girija Dinesh
Cyclosporine induces overgrowth of human gingiva. Previously we have shown (i) cyclosporine - inducing ER stress in human gingival fibroblasts, (ii) increased matrix protein expression, and (iii) interference with mitochondrial pro- and anti - apoptotic factors. This study was undertaken to assess the effects of melatonin (an antioxidant), 4PBA (an ER stress inhibitor), and simvastatin on the expression of ER Stress markers, as well as on matrix and mitochondrial markers. Human gingival fibroblasts incubated with cyclosporine, or without melatonin/4PBA/statin...
February 3, 2017: Journal of Cellular Physiology
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