Evidence map›Paper›PMID 32404209›Full record

ArticleVeterinary research2020

Evaluation of local and systemic immune responses in pigs experimentally challenged with porcine reproductive and respiratory syndrome virus.

Salik Nazki, Amina Khatun, Chang-Gi Jeong, Sameer Ul Salam Mattoo, Suna Gu, Sim-In Lee, Seung-Chai Kim, Ji-Hyo Park, Myoun-Sik Yang, Bumseok Kim and 3 more

Open access · goldAbstract read
In one paragraph

Article in Veterinary research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
3.6field-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

24 citing papers in PubMed, 45 citations in OpenAlex.

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  17. Infection and immunity · 2022
    Article
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  20. Review
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

13 authors at 3 institutions in 3 countries.

Salik NazkiCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Amina KhatunCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Chang-Gi JeongCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Sameer Ul Salam MattooDivision of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental & Biosource Science, Jeonbuk National University, Iksan, South Korea.
Suna GuDivision of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental & Biosource Science, Jeonbuk National University, Iksan, South Korea.
Sim-In LeeCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Seung-Chai KimCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Ji-Hyo ParkCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Myoun-Sik YangCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Bumseok KimCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea.
Choi-Kyu ParkCollege of Veterinary Medicine, Kyungpook National University, Daegu, South Korea.
Sang-Myeong LeeDivision of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental & Biosource Science, Jeonbuk National University, Iksan, South Korea. leesangm@jbnu.ac.kr.
Won-Il KimCollege of Veterinary Medicine, Jeonbuk National University, Iksan, South Korea. kwi0621@jbnu.ac.kr.ORCID http://orcid.org/0000-0002-0465-0794
Jeonbuk National University · KRKyungpook National University · KRNational University College · PR

Funding

Ministry of Food, Agriculture, Forestry and Fisheries in the Republic of Korea 315029-3Ministry of Food, Agriculture, Forestry and Fisheries in the Republic of Korea PJ01181601Ministry of Food, Agriculture, Forestry and Fisheries in the Republic of Korea PJ01261201
6 · The paper itself

Abstract

The host-associated defence system responsible for the clearance of porcine reproductive and respiratory syndrome virus (PRRSV) from infected pigs is currently poorly understood. To better understand the dynamics of host-pathogen interactions, seventy-five of 100 pigs infected with PRRSV-JA142 and 25 control pigs were euthanized at 3, 10, 21, 28 and 35 days post-challenge (dpc). Blood, lung, bronchoalveolar lavage (BAL) and bronchial lymph node (BLN) samples were collected to evaluate the cellular immune responses. The humoral responses were evaluated by measuring the levels of anti-PRRSV IgG and serum virus-neutralizing (SVN) antibodies. Consequently, the highest viral loads in the sera and lungs of the infected pigs were detected between 3 and 10 dpc, and these resulted in moderate to mild interstitial pneumonia, which resolved accompanied by the clearance of most of the virus by 28 dpc. At peak viremia, the frequencies of alveolar macrophages in infected pigs were significantly decreased, whereas the monocyte-derived DC/macrophage and conventional DC frequencies were increased, and these effects coincided with the early induction of local T-cell responses and the presence of proinflammatory cytokines/chemokines in the lungs, BAL, and BLN as early as 10 dpc. Conversely, the systemic T-cell responses measured in the peripheral blood mononuclear cells were delayed and significantly induced only after the peak viremic stage between 3 and 10 dpc. Taken together, our results suggest that activation of immune responses in the lung could be the key elements for restraining PRRSV through the early induction of T-cell responses at the sites of virus replication.

Indexed as

Adaptive ImmunityImmunity, InnateAnimalsBronchiBronchoalveolar Lavage FluidLungLymph NodesParenchymal TissuePorcine Reproductive and Respiratory SyndromePorcine respiratory and reproductive syndrome virusSus scrofaSwine

Identifiers

PMID32404209
PMCPMC7222343
OpenAlexW3026037054

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.