Failure of the PAXgene™ Blood RNA System to maintain mRNA stability in whole blood
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Bertil Kågedal
Abstract
In multicentre studies of malignant and inflammatory diseases, whole blood, cell or tissue samples are often collected for analyses of gene expression to predict or monitor treatment effects. For correct analysis, sample stability during handling and transport is crucial. In developing the logistics for multicentre studies in malignant melanoma and inflammatory bowel disease, we found poor stability of a number of transcripts using the PAXgene™ Blood RNA System, which was advertised to maintain RNA stability for several days at room temperature. The results indicate that general statements on sample stability are not reliable and have to be verified for the specific transcripts of interest.
References
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©2005 by Walter de Gruyter Berlin New York
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Artikel in diesem Heft
- Cervical human papillomavirus screening by PCR: advantages of targeting the E6/E7 region
- Isotretinoin therapy induces DNA oxidative damage
- Structural evaluation of plasma α2-macroglobulin in acute pancreatitis
- Failure of the PAXgene™ Blood RNA System to maintain mRNA stability in whole blood
- Reticulocyte hemoglobin measurement – comparison of two methods in the diagnosis of iron-restricted erythropoiesis
- Physical analysis of ejaculate to evaluate the secretory activity of the seminal vesicles and prostate
- Specificity of the 3H-triolein assay for pancreatic lipase in blood plasma
- Effects of hemolysis and storage condition on neuron-specific enolase (NSE) in cerebrospinal fluid and serum: implications in clinical practice
- Plasma levels of 7-hydroxymetabolites of dehydroepiandrosterone in healthy Central European aging men
- Prevalence of abnormal thyroid stimulating hormone and thyroid peroxidase antibody-positive results in a population of pregnant women in the Samara region of the Russian Federation
- Impact of standardized calibration on the inter-assay variation of 14 automated assays for the measurement of creatinine in human serum
- Efficacy of three ELISA measurements of anti-cyclic citrullinated peptide antibodies in the early diagnosis of rheumatoid arthritis
- Mean and variance quality control for multiple correlated levels of replicated control samples
- Clinical evaluation of serodiagnosis of active tuberculosis by multiple-antigen ELISA using lipids from Mycobacterium bovis BCG Tokyo 172
- Analytical evaluation of the Dade Behring Dimension RxL automated N-Terminal proBNP (NT-proBNP) method and comparison with the Roche Elecsys 2010
- Unusually high alkaline phosphatase due to intestinal isoenzyme in a healthy adult
- Deficient α-galactosidase A activity in plasma but no Fabry disease – a pitfall in diagnosis
- Reportable interval of patient examination results and ISO 15189
