Evidence map›Paper›PMID 33276787›Full record

ArticleBMC veterinary research2020

Layered double hydroxide nanoparticles as an adjuvant for inactivated foot-and-mouth disease vaccine in pigs.

Peng Wu, Yunfeng Zhang, Xinyue Yin, Yanhua He, Qian Zhang, Chuangfu Chen

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 15% 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, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
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  9. Review
  10. LDH as an adjuvant makesIranian journal of basic medical sciences · 2023
    Article
  11. Review
  12. Review
  13. The Recombinant Expression Proteins FnBP and ClfA FromFrontiers in veterinary science · 2021
    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

6 authors at 2 institutions in 1 country.

Peng WuCollege of Animal Science and Technology, Shihezi University, Xinjiang, China.
Yunfeng ZhangCollege of Animal Science and Technology, Shihezi University, Xinjiang, China.
Xinyue YinCollege of Animal Science and Technology, Shihezi University, Xinjiang, China.
Yanhua HeState Key Laboratory of Sheep Genetic Improvement and Healthy Production/ Xinjiang Academy of Agricultural and Reclamation Sciences, Xinjiang, China.
Qian ZhangState Key Laboratory of Sheep Genetic Improvement and Healthy Production/ Xinjiang Academy of Agricultural and Reclamation Sciences, Xinjiang, China.
Chuangfu ChenCollege of Animal Science and Technology, Shihezi University, Xinjiang, China. chuangfu_chen@163.com.
Shihezi University · CNXinjiang Academy of Agricultural and Reclamation Science · CN

Funding

the Bingtuan Science and Technology Cooperation Program 2018BC011the National Natural Science Foundation of China 31572491the National Natural Science Foundation of China U1803236
6 · The paper itself

Abstract

backgroundFoot-and-mouth disease (FMD) is a highly transmissible disease that leads to vast economic losses in many countries. Prevention using inactivated vaccines is one effective measure used to control FMD. Unfortunately, inactivated FMD vaccines provide only short-term protection and require a cold-chain system. In recent years, many studies have shown that layered double metal hydroxides (LDHs) carrying antigens can be used to strongly induce immune responses. In this study, LDH nanoparticles (NPs) were prepared by hydrothermal synthesis. LDH particle size, electric potential, and morphology were measured and observed. The adsorption capacity of LDH NPs to FMDV was tested. The effects of LDH as an adjuvant on inactivated FMDV vaccines were further evaluated and compared with commercial FMDV Montanide ISA-206 in BALB/C female mice and Yorkshire pigs.

resultsLDH NPs were successfully prepared with a uniform particle size of ~ 87.21 nm, regular edges, a loose hexagonal shape and positive zeta charge of 32 mV. The maximum absorption concentration was 0.16-0.31 μg FMDV/μg LDH. In the mouse experiment, antibody levels in group LDH + FMDV were significantly higher compared to group saline + FMDV (P < 0.01) from days 42-98 and were significantly higher to group ISA-206 + FMDV on day 56 post-immunization (P < 0.05). After day 14 post-immunization, IFN-γ content was significantly increased (P < 0.05). In the pig experiment, antibody levels in both the ISA-206 + FMDV and LDH + FMDV were positive and were significantly higher compared with the PBS group on day 7 (P < 0.005). Antibody levels in 90% pigs were positive on day 56 in the LDH group. The neutralizing antibody levels in the LDH and ISA-206 groups were significantly higher from days 7-28 compared to the PBS control group (P < 0.05). Thus, LDH NPs were effective at inducing an immune response against FMDV.

conclusionsLDHs with a loose hexagonal shape and a positive charge were prepared and evaluated as adjuvant for FMD vaccine. It was demonstrated that LDHs can induce immune responses in mice and pigs. In addition, the LDHs produced antibodies continuously which may indicate a slow-release effect. The study shows that LDHs may act as a potentially useful FMDV adjuvant.

Indexed as

Adjuvants, ImmunologicAnimalsAntibodies, NeutralizingFemaleFoot-and-Mouth DiseaseFoot-and-Mouth Disease VirusHydroxidesMice, Inbred BALB CNanoparticlesSus scrofaSwineSwine DiseasesVaccinationVaccines, InactivatedViral VaccinesAdjuvants, ImmunologicAntibodies, NeutralizingHydroxidesVaccines, InactivatedViral VaccinesAdjuvantFMDVImmune responseLDHsNPs

Identifiers

PMID33276787
PMCPMC7716589
OpenAlexW3109165458

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.