Evidence map›Paper›PMID 31387589›Full record

ArticleBMC veterinary research2019

Pathogenicity comparison of duck Tembusu virus in different aged Cherry Valley breeding ducks.

Chuanwei Lv, Rong Li, Xingpo Liu, Ning Li, Sidang Liu

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. The difference in CD4Frontiers in immunology · 2022
    Article
  9. Review
  10. Article
  11. Review
  12. Autophagy Is a Potential Therapeutic Target Against Duck Tembusu Virus InfectionFrontiers in cellular and infection microbiology · 2020
    Article
  13. Article
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

5 authors at 1 institution in 1 country.

Chuanwei LvCollege of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Taian City, 271018, Shandong Province, China.
Rong LiCollege of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Taian City, 271018, Shandong Province, China.
Xingpo LiuCollege of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Taian City, 271018, Shandong Province, China.
Ning LiCollege of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Taian City, 271018, Shandong Province, China. SDTaianlining@126.com.ORCID http://orcid.org/0000-0003-3880-5464
Sidang LiuCollege of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Taian City, 271018, Shandong Province, China. liusidang@126.com.
Shandong Agricultural University · CN

Funding

China Postdoctoral Science Foundation funded project 2019M652450National Key Research and Development Program 2016YFD0500106
6 · The paper itself

Abstract

backgroundAlthough several studies have revealed that the sensitivity of ducklings to duck Tembusu virus (DTMUV) was related to age, however, DTMUV was originally isolated from egg-laying ducks, and the ovary was the target organ of this virus. Cherry Valley breeding ducks aged 15- and 55-week-old (they are reserve breeding ducks and the normal egg-laying breeding ducks, respectively) were infected with DTMUV, using intramuscular injection, to study the effect of age-related difference on the pathogenicity of DTMUV in breeding ducks.

resultsExaminations of clinical symptoms, gross and microscopic lesions, viral loads, cytokines and serum neutralizing antibodies were performed. Results showed that obvious clinical symptoms, such as depression, ruffled feathers, ataxia and egg-laying drop were observed in the 55-week-old laying ducks, with five ducks dying at 5-7 days post infection (dpi). The 15-week-old ducks showed slight symptoms during infection. Gross lesions were severe and characterized by the congestion, hemorrhage and swelling of some organs in the 55-week-old ducks, including the hemorrhage of endocardium, hepatomegaly, splenomegaly, oviduct hemorrhage, hyperemia and deformation of the ovary. Mild endocardial hemorrhage and hepatosplenomegaly were observed in the 15-week-old ducks. Similarly, there was a significant difference in microscopic lesions between the two groups. The older ducks displayed severe microscopic lesions, specifically in the hemorrhage, interstitial inflammatory cell infiltration of the endocardium, typical viral encephalitis and hemorrhage in the ovary. But on the whole, the 15-week-old ducks showed milder lesions. Viral loads in tissues of the older group were significantly higher than those of the younger group. The levels of interferon (IFN)-γ, interleukin (IL)-2 and neutralizing antibody in the 15-week-old ducks were higher than in the 55-week-old ducks at the early stage of the DTMUV infection, suggesting the immune response in the younger ducks to DTMUV was stronger than in the older ducks.

conclusionsThese results demonstrated that age-related differences in susceptibility to DTMUV in breeding ducks was significant, with 55-week-old egg-laying ducks being more susceptible to DTMUV than 15-week-old reserve breeding ducks.

Indexed as

AgingDucksAnimalsDisease SusceptibilityFlavivirusFlavivirus InfectionsPoultry DiseasesVirulenceAgeBreeding duckDuck Tembusu virusPathogenicity

Identifiers

PMID31387589
PMCPMC6685157
OpenAlexW2965511149

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.