نتایج جستجو برای: loop mediated isothermal amplification assay

تعداد نتایج: 787341  

Journal: :iranian journal of parasitology 0
mehrdad ghasemian department of parasitology and mycology, faculty of medicine, iran university of medical sciences, tehran, iran. mohammad javad gharavi department of parasitology, faculty of allied medicine, iran university of medical sciences, tehran, iran. lame akhlaghi department of parasitology and mycology, faculty of medicine, iran university of medical sciences, tehran, iran. mehdi mohebali department of parasitology, school of public health, tehran university of medical sciences, tehran, iran. ahmad reza meamar department of parasitology and mycology, faculty of medicine, iran university of medical sciences, tehran, iran. ehsan aryan antimicrobial resistance research center, department of medical microbiology, faculty of medicine, mashhad university of medical sciences, mashhad, iran.

background: parasitological methods for the diagnosis of visceral leishmania-sis (vl) require invasive procedures, so serological and molecular approaches have been developed but are not generally applicable in the field. we evaluated a loop mediated isothermal amplification (lamp) assay using blood from vl pa-tients and compared it to nested pcr. methods: forty-seven subjects with clinical fea...

2016
Gaolian Xu Hang Zhao Jonathan M Cooper Julien Reboud

We demonstrate a multiplexed loop mediated isothermal amplification (LAMP) assay for infectious disease diagnostics, where the analytical process flow of target pathogens genomic DNA is performed manually by moving magnetic beads through a series of plugs in a capillary. Heat is provided by a water bath and the results are read by the naked eye, enabling applications in low resource settings.

2013
Junyi Xu Qiuyue Zheng Ling Yu Ran Liu Xin Zhao Gang Wang Qinghua Wang Jijuan Cao

The loop-mediated isothermal amplification (LAMP) assay indicates a potential and valuable means for genetically modified organism (GMO) detection especially for its rapidity, simplicity, and low cost. We developed and evaluated the specificity and sensitivity of the LAMP method for rapid detection of the genetically modified (GM) maize T25. A set of six specific primers was successfully design...

2015
Xuzhi Zhang Qiufen Li Xianshi Jin Cheng Jiang Yong Lu Roya Tavallaie J. Justin Gooding

Integrating loop-mediated isothermal amplification (LAMP) with capacitively coupled contactless conductivity detection (C(4)D), we have developed an electrical sensor for the simultaneous amplification and detection of specific sequence DNA. Using the O26-wzy gene as a model, the amount of initial target gene could be determined via the threshold time obtained by monitoring the progression of t...

Journal: :Journal of microbiological methods 2013
Po-Chi Soo Chun-Chieh Tseng Siao-Ru Ling Ming-Li Liou Chih-Chin Liu Huei-Jen Chao Teng-Yi Lin Kai-Chih Chang

Here we report the design and evaluation of a loop-mediated isothermal amplification (LAMP) assay for detecting Acinetobacter baumannii DNA based on the 16S-23S rRNA intergenic spacer (ITS) sequence. The results showed that target DNA was amplified and visualized within 30min and with a detection limit 100-fold greater than PCR.

Journal: :Journal of clinical microbiology 2011
Torbjörn Norén Ingegärd Alriksson Josefin Andersson Thomas Akerlund Magnus Unemo

Compared to the composite gold standard cytotoxin B assay and toxigenic culture, the loop-mediated isothermal amplification (LAMP) test for Clostridium difficile had a sensitivity and specificity of 98%, positive predictive value of 92%, and negative predictive value of >99%. A one-hour turnaround time for the LAMP test provides rapid diagnosis and cost savings.

2014
Gavin J. Nixon Helle F. Svenstrup Carol E. Donald Caroline Carder Judith M. Stephenson Stephen Morris-Jones Jim F. Huggett Carole A. Foy

Molecular diagnostic measurements are currently underpinned by the polymerase chain reaction (PCR). There are also a number of alternative nucleic acid amplification technologies, which unlike PCR, work at a single temperature. These 'isothermal' methods, reportedly offer potential advantages over PCR such as simplicity, speed and resistance to inhibitors and could also be used for quantitative...

2016
Eun-Mi Kim Hyo-Sung Jeon Ji-Jung Kim Yeun-Kyung Shin Youn-Jeong Lee Sang-Geon Yeo Choi-Kyu Park

Here, we describe a uracil-DNA glycosylase (UNG)-treated reverse transcription loop-mediated isothermal amplification (uRT-LAMP) for the visual detection of all subtypes of avian influenza A virus (AIV). The uRT-LAMP assay can prevent unwanted amplification by carryover contamination of the previously amplified DNA, although the detection limit of the uRT-LAMP assay is 10-fold lower than that o...

Journal: :Forests 2021

A Loop-Mediated Isothermal Amplification (LAMP) assay was developed for the detection of pine pathogen Dothistroma septosporum (G. Dorog.) M. Morelet. The specificity LAMP tested using a selection needle fungi, including pini Hulbary, and Lecanosticta acicola (Thüm.) Syd.; only D. DNA amplified by test. In terms sensitivity, able to detect as little 1 pg total DNA. This enables extracted from d...

احمدی, زینب, جوادی, سیده مهری, حق نظری, علی, سروری زنجانی, رحیم, مرادی, ابوبکر, کرمی, علی,

Background and Objective: There are several techniques for the diagnosing of salmonella infectious. Several molecular methods such as PCR and hybridization assay have recently been used for the detection of this bacterium. However, these methods require precision instruments for amplification and complex procedures, which are the major obstacles to the widespread use of these methods in relativ...

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