Evidence map›Paper›PMID 42795469›Full record

ArticleMicroorganisms2026

A Colloidal Gold Immunochromatographic Strip Based on a Conserved Epitope Peptide for Rapid Detection of Antibodies Against Avian Infectious Bronchitis Virus.

Ling Liu, Kang Zhao, Chang-Run Zhao, Tao-Ni Zhang, Yi Li, Qin Wu, Qi Wang, Chuan-Rui Yang, Wen-Qing Zhao, Qiu-Ying Chen and 4 more

Abstract read
In one paragraph

Article in Microorganisms, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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

14 authors.

Ling LiuCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Kang ZhaoCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.ORCID 0000-0003-3568-8231
Chang-Run ZhaoCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Tao-Ni ZhangCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Yi LiCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Qin WuCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Qi WangCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Chuan-Rui YangCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Wen-Qing ZhaoCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Qiu-Ying ChenCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Tianchao WeiCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.ORCID 0009-0000-8633-2353
Teng HuangCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.
Jianni HuangCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.ORCID 0009-0005-3379-2053
Meilan MoCollege of Animal Science and Technology, Guangxi University, Nanning 530004, China.ORCID 0000-0003-3903-0509

Funding

Department of Agriculture and Rural Affairs of Guangxi Zhuang Autonomous Region AB2506910009National Natural Science Foundation of China 32360871
6 · The paper itself

Abstract

Avian infectious bronchitis virus (IBV) is widely distributed worldwide and causes substantial economic losses to the poultry industry. Because IBV undergoes frequent mutation, prevention and control of infection remain challenging. Immunization is an important measure for the prevention and control of IB. Therefore, there is an urgent need for a rapid, sensitive, specific, and convenient method for the detection of antibodies against IBV. In this study, we firstly developed an indirect colloidal gold immunochromatographic strip for the rapid detection of antibodies against IBV based on a conserved epitope peptide. The recombinant epitope peptide recognized by N2D5 monoclonal antibody (mAb) against the N protein of IBV was expressed as a GST fusion protein (GST-N2D5) based on the conserved antigenic epitope previously identified in our laboratory. Colloidal gold-labeled GST-N2D5 was used as the detection reagent to generate visual signals. Rabbit anti-chicken IgY and mouse anti-GST mAb were immobilized on the nitrocellulose membrane as the test line (T line) and control line (C line), respectively. The optimal pH and optimal protein concentration for conjugation of gold nanoparticles (AuNPs) with GST-N2D5 were pH 8.5 and 72 µg/mL, respectively. Specificity was evaluated using common avian pathogens, and no cross-reactivity was observed. The detection limit of the strip for IBV-positive serum was 1:180. In addition, the assay showed good reproducibility and stability, and results could be observed within 5 min without any specialized equipment. Clinical chicken serum samples were tested using both the developed strip and an enzyme-linked immunosorbent assay (ELISA), and the strip showed high agreement with the ELISA. In conclusion, the established immunochromatographic strip is rapid, sensitive, specific, and easy to operate, and therefore has potential as an on-site tool for the rapid detection of antibodies against IBV, particularly in resource-limited settings.

Indexed as

colloidal goldepitope peptideimmunochromatographic stripinfectious bronchitis virusrapid detection

Identifiers

PMID42795469
PMCPMC13609136

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