Evidence map›Paper›PMID 21569347›Full record

ArticleBMC biotechnology2011

Multiple strategies to improve sensitivity, speed and robustness of isothermal nucleic acid amplification for rapid pathogen detection.

Yanhong Tong, Bertrand Lemieux, Huimin Kong

Open access · goldAbstract read
In one paragraph

Article in BMC biotechnology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.9field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 53 citations in OpenAlex.

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  9. Amplification chemistries in clinical virology.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2019
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Yanhong TongBioHelix Corp, Beverly, MA, USA. tong@biohelix.com
Bertrand Lemieux
Huimin Kong
Helix Biomedix (United States) · USBioReliance (United States) · US

Funding

Low complexity, Instrument-free for CT/NGU01AI082522 · NIAID · BIOHELIX CORPORATION · PI ASLANZADEH, JABER, LEMIEUX, BERTRAND · 2009 to 2011
$2.1M
NIAID NIH HHS U01AI082522
6 · The paper itself

Abstract

backgroundIn the past decades the rapid growth of molecular diagnostics (based on either traditional PCR or isothermal amplification technologies) meet the demand for fast and accurate testing. Although isothermal amplification technologies have the advantages of low cost requirements for instruments, the further improvement on sensitivity, speed and robustness is a prerequisite for the applications in rapid pathogen detection, especially at point-of-care diagnostics. Here, we describe and explore several strategies to improve one of the isothermal technologies, helicase-dependent amplification (HDA).

resultsMultiple strategies were approached to improve the overall performance of the isothermal amplification: the restriction endonuclease-mediated DNA helicase homing, macromolecular crowding agents, and the optimization of reaction enzyme mix. The effect of combing all strategies was compared with that of the individual strategy. With all of above methods, we are able to detect 50 copies of Neisseria gonorrhoeae DNA in just 20 minutes of amplification using a nearly instrument-free detection platform (BESt™ cassette).

conclusionsThe strategies addressed in this proof-of-concept study are independent of expensive equipment, and are not limited to particular primers, targets or detection format. However, they make a large difference in assay performance. Some of them can be adjusted and applied to other formats of nucleic acid amplification. Furthermore, the strategies to improve the in vitro assays by maximally simulating the nature conditions may be useful in the general field of developing molecular assays. A new fast molecular assay for Neisseria gonorrhoeae has also been developed which has great potential to be used at point-of-care diagnostics.

Indexed as

Chemical PhenomenaDextransDNA, BacterialDNA Restriction EnzymesFicollNeisseria gonorrhoeaeNucleic Acid Amplification TechniquesPolyethylene GlycolsSensitivity and SpecificityDextransDNA, BacterialDNA Restriction EnzymesFicollPolyethylene Glycols

Identifiers

PMID21569347
PMCPMC3104364
OpenAlexW2051824898

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.