scholarly journals Analysis of Multiple Gene Expression Array Experiments after Repetitive Hybridizations on Nylon Membranes

BioTechniques ◽  
2002 ◽  
Vol 33 (1) ◽  
pp. 108-117 ◽  
Author(s):  
Jorrit J. Hornberg ◽  
Richard R. de Haas ◽  
Henk Dekker ◽  
Jan Lankelma
2018 ◽  
Vol 154 (6) ◽  
pp. S-265-S-266
Author(s):  
Christopher Foster ◽  
Sydney Chatfield ◽  
Todd Jensen ◽  
Zhu Wang ◽  
Christine Finck ◽  
...  

2021 ◽  
Author(s):  
Georg T. Wondrak ◽  
Jana Jandova ◽  
Spencer J. Williams ◽  
Dominik Schenten

The germicidal properties of short wavelength ultraviolet C (UVC) light are well established and used to inactivate many viruses and other microbes. However, much less is known about germicidal effects of terrestrial solar UV light, confined exclusively to wavelengths in the UVA and UVB regions. Here, we have explored the sensitivity of the human coronaviruses HCoV-NL63 and SARS-CoV-2 to solar-simulated full spectrum ultraviolet light (sUV) delivered at environmentally relevant doses. First, HCoV-NL63 coronavirus inactivation by sUV-exposure was confirmed employing (i) viral plaque assays, (ii) RT-qPCR detection of viral genome replication, and (iii) infection-induced stress response gene expression array analysis. Next, a detailed dose-response relationship of SARS-CoV-2 coronavirus inactivation by sUV was elucidated, suggesting a half maximal suppression of viral infectivity at low sUV doses. Likewise, extended sUV exposure of SARS-CoV-2 blocked cellular infection as revealed by plaque assay and stress response gene expression array analysis. Moreover, comparative (HCoV-NL63 versus SARS-CoV-2) single gene expression analysis by RT-qPCR confirmed that sUV exposure blocks coronavirus-induced redox, inflammatory, and proteotoxic stress responses. Based on our findings, we estimate that solar ground level full spectrum UV light impairs coronavirus infectivity at environmentally relevant doses. Given the urgency and global scale of the unfolding SARS-CoV-2 pandemic, these prototype data suggest feasibility of solar UV-induced viral inactivation, an observation deserving further molecular exploration in more relevant exposure models.


2013 ◽  
Vol 17 (5) ◽  
pp. 395-400 ◽  
Author(s):  
Martin H. van Vliet ◽  
Pia Burgmer ◽  
Linda de Quartel ◽  
Jaap P.L. Brand ◽  
Leonie C.M. de Best ◽  
...  

2012 ◽  
Vol 302 (2) ◽  
pp. E209-E217 ◽  
Author(s):  
Kristian K. Jensen ◽  
Stephen F. Previs ◽  
Lei Zhu ◽  
Kithsiri Herath ◽  
Sheng-Ping Wang ◽  
...  

The liver is a crossroad for metabolism of lipid and carbohydrates, with acetyl-CoA serving as an important metabolic intermediate and a precursor for fatty acid and cholesterol biosynthesis pathways. A better understanding of the regulation of these pathways requires an experimental approach that provides both quantitative metabolic flux measurements and mechanistic insight. Under conditions of high carbohydrate availability, excess carbon is converted into free fatty acids and triglyceride for storage, but it is not clear how excessive carbohydrate availability affects cholesterol biosynthesis. To address this, C57BL/6J mice were fed either a low-fat, high-carbohydrate diet or a high-fat, carbohydrate-free diet. At the end of the dietary intervention, the two groups received 2H2O to trace de novo fatty acid and cholesterol synthesis, and livers were collected for gene expression analysis. Expression of lipid and glucose metabolism genes was determined using a custom-designed pathway focused PCR-based gene expression array. The expression analysis showed downregulation of cholesterol biosynthesis genes and upregulation of fatty acid synthesis genes in mice receiving the high-carbohydrate diet compared with the carbohydrate-free diet. In support of these findings, 2H2O tracer data showed that fatty acid synthesis was increased 10-fold and cholesterol synthesis was reduced by 1.6-fold in mice fed the respective diets. In conclusion, by applying gene expression analysis and tracer methodology, we show that fatty acid and cholesterol synthesis are differentially regulated when the carbohydrate intake in mice is altered.


The Prostate ◽  
2001 ◽  
Vol 47 (2) ◽  
pp. 132-140 ◽  
Author(s):  
Albert Chetcuti ◽  
Sienna Margan ◽  
Stephen Mann ◽  
Peter Russell ◽  
David Handelsman ◽  
...  

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