Studies on the diagnosis of hop stunt viroid in fruit trees: Identification of new hosts and application of a nucleic acid extraction procedure based on non-organic solvents

1996 ◽  
Vol 102 (9) ◽  
pp. 837-846 ◽  
Author(s):  
Nathalie Astruc ◽  
Jose F. Marcos ◽  
Guy Macquaire ◽  
Thierry Candresse ◽  
Vicente Pallás
Keyword(s):  
Nucleic Acid ◽  
Organic Solvents ◽  
Extraction Procedure ◽  
Fruit Trees ◽  
Acid Extraction ◽  
Nucleic Acid Extraction ◽  
Stunt Viroid ◽  
Hop Stunt Viroid ◽  
New Hosts

scholarly journals Enhanced analytical sensitivity of a quantitative PCR for CMV using a modified nucleic-acid extraction procedure

2000 ◽  
Vol 14 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Andrea Ferreira-Gonzalez ◽  
Saul Yanovich ◽  
Michael R. Langley ◽  
Lisa A. Weymouth ◽  
David S. Wilkinson ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Quantitative Pcr ◽  
Extraction Procedure ◽  
Acid Extraction ◽  
Analytical Sensitivity ◽  
Nucleic Acid Extraction

scholarly journals Development of a Nucleic Acid Extraction Procedure for Simultaneous Recovery of DNA and RNA from Diverse Microbes in Water

Pathogens ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 335-354 ◽  
Author(s):  
Vincent Hill ◽  
Jothikumar Narayanan ◽  
Rachel Gallen ◽  
Karen Ferdinand ◽  
Theresa Cromeans ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Extraction Procedure ◽  
Acid Extraction ◽  
Nucleic Acid Extraction ◽  
Dna And Rna

scholarly journals Differing Effects of Standard and Harsh Nucleic Acid Extraction Procedures on Diagnostic Helminth Real-Time PCRs Applied to Human Stool Samples

Pathogens ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 188
Author(s):  
Tanja Hoffmann ◽  
Andreas Hahn ◽  
Jaco J. Verweij ◽  
Gérard Leboulle ◽  
Olfert Landt ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Real Time ◽  
Real Time Pcr ◽  
Acid Extraction ◽  
Nucleic Acid Extraction ◽  
Pcr Assay ◽  
Bead Beating ◽  
Stool Samples ◽  
Pcr Assays ◽  
Human Stool

This study aimed to assess standard and harsher nucleic acid extraction schemes for diagnostic helminth real-time PCR approaches from stool samples. A standard procedure for nucleic acid extraction from stool and a procedure including bead-beating as well as proteinase K digestion were compared with group-, genus-, and species-specific real-time PCR assays targeting helminths and nonhelminth pathogens in human stool samples. From 25 different in-house and commercial helminth real-time PCR assays applied to 77 stool samples comprising 67 historic samples and 10 external quality assessment scheme samples positively tested for helminths, higher numbers of positive test results were observed after bead-beating-based nucleic acid extraction for 5/25 (20%) real-time PCR assays irrespective of specificity issues. Lower cycle threshold values were observed for one real-time PCR assay after the standard extraction scheme, and for four assays after the bead-beating-based scheme. Agreement between real-time PCR results after both nucleic acid extraction strategies according to Cohen’s kappa ranged from poor to almost perfect for the different assays. Varying agreement was observed in eight nonhelminth real-time PCR assays applied to 67 historic stool samples. The study indicates highly variable effects of harsh nucleic acid extraction approaches depending on the real-time PCR assay used.

scholarly journals Evaluation of an Automated High-Throughput Liquid-Based RNA Extraction Platform on Pooled Nasopharyngeal or Saliva Specimens for SARS-CoV-2 RT-PCR

Viruses ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 615
Author(s):  
Allen Wing-Ho Chu ◽  
Cyril Chik-Yan Yip ◽  
Wan-Mui Chan ◽  
Anthony Chin-Ki Ng ◽  
Dream Lok-Sze Chan ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
High Throughput ◽  
Rna Extraction ◽  
Nasopharyngeal Swab ◽  
Acid Extraction ◽  
Rt Pcr ◽  
Nucleic Acid Extraction ◽  
Suitable Alternative ◽  
Pcr Inhibitors ◽  
Pcr Targeting

SARS-CoV-2 RT-PCR with pooled specimens has been implemented during the COVID-19 pandemic as a cost- and manpower-saving strategy for large-scale testing. However, there is a paucity of data on the efficiency of different nucleic acid extraction platforms on pooled specimens. This study compared a novel automated high-throughput liquid-based RNA extraction (LRE) platform (PHASIFYTM) with a widely used magnetic bead-based total nucleic acid extraction (MBTE) platform (NucliSENS® easyMAG®). A total of 60 pools of nasopharyngeal swab and 60 pools of posterior oropharyngeal saliva specimens, each consisting of 1 SARS-CoV-2 positive and 9 SARS-CoV-2 negative specimens, were included for the comparison. Real-time RT-PCR targeting the SARS-CoV-2 RdRp/Hel gene was performed, and GAPDH RT-PCR was used to detect RT-PCR inhibitors. No significant differences were observed in the Ct values and overall RT-PCR positive rates between LRE and MBTE platforms (92.5% (111/120] vs 90% (108/120]), but there was a slightly higher positive rate for LRE (88.3% (53/60]) than MBTE (81.7% (49/60]) among pooled saliva. The automated LRE method is comparable to a standard MBTE method for the detection of SAR-CoV-2 in pooled specimens, providing a suitable alternative automated extraction platform. Furthermore, LRE may be better suited for pooled saliva specimens due to more efficient removal of RT-PCR inhibitors.

Synergistic use of electroosmotic flow and magnetic forces for nucleic acid extraction

The Analyst ◽  
2020 ◽  
Vol 145 (6) ◽  
pp. 2412-2419 ◽  
Author(s):  
Rachel N. Deraney ◽  
Lindsay Schneider ◽  
Anubhav Tripathi
Keyword(s):  
Nucleic Acid ◽  
Electric Field ◽  
Microfluidic Chip ◽  
Applied Electric Field ◽  
Electroosmotic Flow ◽  
Acid Extraction ◽  
Nucleic Acid Extraction ◽  
Magnetic Forces ◽  
Extraction And Purification

NA extraction and purification utilitzing a microfluidic chip with applied electric field to induce electroosmotic flow opposite the magnetic NA-bound bead mix.

scholarly journals Evaluation of simple nucleic acid extraction methods for the detection of SARS-CoV-2 in nasopharyngeal and saliva specimens during global shortage of extraction kits

2020 ◽  
Vol 129 ◽  
pp. 104519 ◽  
Author(s):  
Allen Wing-Ho Chu ◽  
Wan-Mui Chan ◽  
Jonathan Daniel Ip ◽  
Cyril Chik-Yan Yip ◽  
Jasper Fuk-Woo Chan ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Extraction Methods ◽  
Acid Extraction ◽  
Nucleic Acid Extraction

Comparison of 2 highly automated nucleic acid extraction systems for quantitation of human cytomegalovirus in whole blood

2011 ◽  
Vol 69 (2) ◽  
pp. 161-166 ◽  
Author(s):  
Catherine Mengelle ◽  
Jean-Michel Mansuy ◽  
Isabelle Da Silva ◽  
Chistian Davrinche ◽  
Jacques Izopet
Keyword(s):  
Nucleic Acid ◽  
Human Cytomegalovirus ◽  
Whole Blood ◽  
Acid Extraction ◽  
Nucleic Acid Extraction

scholarly journals NEATTILL: A simplified procedure for nucleic acid extraction from arrayed tissue for TILLING and other high-throughput reverse genetic applications

Plant Methods ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 3 ◽  
Author(s):  
Yellamaraju Sreelakshmi ◽  
Soni Gupta ◽  
Reddaiah Bodanapu ◽  
Vineeta Chauhan ◽  
Mickey Hanjabam ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
High Throughput ◽  
Acid Extraction ◽  
Reverse Genetic ◽  
Nucleic Acid Extraction ◽  
Simplified Procedure
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