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Ischemia genorm

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https://www.readbyqxmd.com/read/24294111/reference-gene-identification-for-reverse-transcription-quantitative-polymerase-chain-reaction-analysis-in-an-ischemic-wound-healing-model
#1
Elizabeth D Ruedrich, Mary K Henzel, Bryan S Hausman, Kath M Bogie
Reference genes are often used in RT-quantitative PCR (qPCR) analysis to normalize gene expression levels to a gene that is expressed stably across study groups. They ultimately serve as a control in RT-qPCR analysis, producing more accurate interpretation of results. Whereas many reference genes have been used in various wound-healing studies, the most stable reference gene for ischemic wound-healing analysis has yet to be identified. The goal of this study was to determine systematically the most stable reference gene for studying gene expression in a rat ischemic wound-healing model using RT-qPCR...
December 2013: Journal of Biomolecular Techniques: JBT
https://www.readbyqxmd.com/read/22535878/per-unit-living-tissue-normalization-of-real-time-rt-pcr-data-in-ischemic-rat-hearts
#2
S Ellefsen, M Bliksøen, A Rutkovskiy, I B Johansen, M-L Kaljusto, G E Nilsson, J I Vaage, K-O Stensløkken
In studies of gene expression in acute ischemic heart tissue, internal reference genes need to show stable expression per-unit-living tissue to hinder dead cells from biasing real-time RT-PCR data. Until now, this important issue has not been appropriately investigated. We hypothesized that the expression of seven internal reference genes would show stable per-unit-living tissue expression in Langendorff-perfused rat hearts subjected to ischemia-reperfusion. This was found for cyclophilin A, GAPDH, RPL-32, and PolR2A mRNA, with GAPDH showing the highest degree of stability (R = 0...
June 15, 2012: Physiological Genomics
https://www.readbyqxmd.com/read/22377061/selection-of-reference-genes-in-different-myocardial-regions-of-an-in-vivo-ischemia-reperfusion-rat-model-for-normalization-of-antioxidant-gene-expression
#3
Nicoletta Vesentini, Cristina Barsanti, Alessandro Martino, Claudia Kusmic, Andrea Ripoli, AnnaMaria Rossi, Antonio L'Abbate
BACKGROUND: Changes in cardiac gene expression due to myocardial injury are usually assessed in whole heart tissue. However, as the heart is a heterogeneous system, spatial and temporal heterogeneity is expected in gene expression. RESULTS: In an ischemia/reperfusion (I/R) rat model we evaluated gene expression of mitochondrial and cytoplasmatic superoxide dismutase (MnSod, Cu-ZnSod) and thioredoxin reductase (trxr1) upon short (4 h) and long (72 h) reperfusion times in the right ventricle (RV), and in the ischemic/reperfused (IRR) and the remote region (RR) of the left ventricle...
February 29, 2012: BMC Research Notes
https://www.readbyqxmd.com/read/21177382/normalization-strategy-is-critical-for-the-outcome-of-mirna-expression-analyses-in-the-rat-heart
#4
Trond Brattelid, Eva-Katrine Aarnes, Erik Helgeland, Steinar Guvaåg, Heike Eichele, Anne K Jonassen
Since normalization strategies plays a pivotal role for obtaining reliable results when performing quantitative PCR (qPCR) analyses, this study investigated several miRNA normalization candidates in regards to their efficiency as normalization standards in the ischemic reperfused ex vivo rat heart, with special reference to regulation of the miRNAs miR-1 and miR-101b. The possibility of including primers for several miRNAs in one reverse transcription (RT) reaction was also investigated. Langendorff perfused rat hearts were subjected to 30 min regional ischemia and 0, 1, 5, 15, or 120 min reperfusion...
May 1, 2011: Physiological Genomics
https://www.readbyqxmd.com/read/19531214/validation-of-housekeeping-genes-for-quantitative-real-time-pcr-in-in-vivo-and-in-vitro-models-of-cerebral-ischaemia
#5
Carme Gubern, Olivia Hurtado, Rocío Rodríguez, Jesús R Morales, Víctor G Romera, María A Moro, Ignacio Lizasoain, Joaquín Serena, Judith Mallolas
BACKGROUND: Studies of gene expression in experimental cerebral ischaemia models can contribute to understanding the pathophysiology of brain ischaemia and to identifying prognostic markers and potential therapeutic targets. The normalization of relative qRT-PCR data using a suitable reference gene is a crucial prerequisite for obtaining reliable conclusions. No validated housekeeping genes have been reported for the relative quantification of the mRNA expression profile activated in in-vitro ischaemic conditions, whereas for the in-vivo model different reference genes have been used...
2009: BMC Molecular Biology
https://www.readbyqxmd.com/read/18606480/inter-age-variability-of-bona-fide-unvaried-transcripts-normalization-of-quantitative-pcr-data-in-ischemic-stroke
#6
M W Sieber, M Guenther, M Kohl, O W Witte, R A Claus, C Frahm
BACKGROUND: Aging is a major risk factor for a variety of neurobiological diseases leading to variations of transcriptional expression in affected tissues. Reverse transcription of RNA followed by quantitative PCR is a powerful technique for detection and quantification of specific transcripts differentially expressed. An essential prerequisite for accurate interpretation of quantitative PCR data obtained from expression studies is an appropriate normalization process. Therefore we validated the expression of the most frequently used reference genes consisting of Gapdh and Actb as well as Hmbs, Hprt1 and Gusb in an animal model of mice in respect to two major influence factors, aging and ischemia...
April 2010: Neurobiology of Aging
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