ArticleVeterinary microbiology2015
Comparative pathogenesis of US porcine epidemic diarrhea virus (PEDV) strain PC21A in conventional 9-day-old nursing piglets vs. 26-day-old weaned pigs.
Article in Veterinary microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 1 of them a synthesis that pooled it.
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Who cites it
93 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pooled it
- Correlation between the barrier function of the intestinal epithelium and susceptibility to PEDV infection in piglets at different ages.Veterinary research · 2026Article
- Porcine Enteric Coronaviruses: Origins, Global Spread, Transmission Pathways and Pathogenesis.Transboundary and emerging diseases · 2026Review
- PEDV Structural Proteins with Emphasis on M Protein as an Immunomodulatory Factor in Porcine Innate Immunity.Life (Basel, Switzerland) · 2025Review
- Recombinant AAV vaccine expressing PEDV S1 enhances immunity with superior neonatal protection.NPJ vaccines · 2025Article
- Clade-Specific Recombination and Mutations Define the Emergence of Porcine Epidemic Diarrhea Virus S-INDEL Lineages.Animals : an open access journal from MDPI · 2025Article
- Engineering a recombination-resistant live attenuated vaccine candidate with suppressed interferon antagonists for PEDV.Journal of virology · 2025Article
- Induction of Immune Responses in Mice and Newborn Piglets by Oral Immunization with RecombinantMicroorganisms · 2025Article
- The role of innate immune responses against two strains of PEDV (S INDEL and non-S INDEL) in newborn and weaned piglets inoculated by combined orogastric and intranasal routes.Frontiers in immunology · 2025Article
- Celastrol Inhibits Porcine Epidemic Diarrhea Virus Replication by Promoting ROS-Mediated Apoptosis.Transboundary and emerging diseases · 2025Article
- Duplex qPCR for detecting and differentiating porcine epidemic diarrhea virus GI and GII subtypes.Frontiers in microbiology · 2025Article
- Transcriptional analysis reveals the suppression of RAD51 and disruption of the homologous recombination pathway during PEDV infection in IPEC-J2 cells.Virology journal · 2024Article
- Molecular detection and evolutionary analysis of porcine epidemic diarrhea virus in Henan and Shaanxi provinces in China.Archives of virology · 2024Article
- Coronavirus nucleocapsid protein enhances the binding of p-PKCα to RACK1: Implications for inhibition of nucleocytoplasmic trafficking and suppression of the innate immune response.PLoS pathogens · 2024Article
- Efficacy evaluation of a bivalent subunit vaccine against epidemic PEDV heterologous strains with low cross-protection.Journal of virology · 2024Article
- Intranasal delivery of a recombinant adenovirus vaccine encoding the PEDV COE elicits potent mucosal and systemic antibody responses in mice.Microbiology spectrum · 2024Article
- Evolution and virulence of porcine epidemic diarrhea virus following in vitro and in vivo propagation.Scientific reports · 2024Article
- Review
- Isolation ofFrontiers in microbiology · 2024Article
- Research progress of porcine epidemic diarrhea virus S protein.Frontiers in microbiology · 2024Review
33 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Our study demonstrated potential mechanisms by which porcine epidemic diarrhea virus (PEDV) infection induces greater disease severity of nursing vs. weaned conventional pigs. Twenty-six-day-old weaned [PEDV-inoculated (n=11); mock (n=9)] and 9-day-old nursing pigs [PEDV-inoculated (n=9); mock (n=11)] were inoculated orally [8.9 log10 genomic equivalents (GE)/pig] with PC21A strain or mock (MEM). Pigs were monitored for clinical signs and PEDV RNA titers in feces and serum. For pathology and immunofluorescence staining for Ki67 (marker for crypt proliferation) and LGR5 (marker for crypt stem cell), 3-4 pigs were euthanized at postinoculation days (PIDs) 1, 3 and 5. Severe watery diarrhea and atrophic enteritis with moderate to high PEDV RNA titers in feces (7.5-12.2 log10 GE/ml) and low viral RNA titers in serum (5.6-8.6 log10 GE/ml) were observed in all inoculated nursing piglets at PIDs 1-5. In contrast, weaned pigs did not show evidence of PEDV infection at PID 1. Pigs exhibited high fecal shedding titers at PIDs 2-5 and mild to severe atrophic enteritis at PIDs 3-5, indicating a longer incubation for PEDV infection. While uninoculated or inoculated 27-31-day-old pigs showed large numbers of Ki67- or LGR5-positive cells in the intestinal crypts, there was a lack of LGR5-positive cells and low proliferation of crypts in jejunum of uninoculated 10-14-day-old piglets, possibly causing a slower turnover of enterocytes; however, the number of LGR5-positive cells and proliferation of intestinal crypts increased remarkably at 3-5 days after inoculation. Biologic mediators that promote crypt stem cell regeneration would be targets to improve the intestinal epithelium renewal during PEDV infection.
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