Publications by authors named "Pan Xiaocheng"

Avian reovirus (ARV) is highly prevalent in healthy poultry flocks and has been linked to viral arthritis/tendonitis, dwarf syndrome, chronic respiratory disease, and immunosuppression in avian species, resulting in significant economic losses within the poultry industry. The non-structural protein p17 encoded by ARV induces cellular autophagy and facilitates viral proliferation, playing a pivotal role in viral pathogenesis. To further elucidate the pathogenic mechanism basis of ARV p17 protein function, we employed a yeast two-hybrid system to identify Phosphoribosyl pyrophosphate synthetase 2 (PRPS2) as an interacting host protein with p17.

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Fowl adenovirus serotype 4 (FAdV-4) is the main causative agent of hydropericardium hepatitis syndrome (HHS), which has resulted in huge economic losses to the poultry industry in recent years. Hence, a rapid and simple visual detection method is needed for identification of FAdV-4. In this study, three multienzyme isothermal rapid amplification (MIRA) assays, basic MIRA, MIRA-qPCR and MIRA-LFD were developed for detection of FAdV-4.

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During poultry immunization, antibiotics are typically added to inactivated oil-adjuvant avian influenza (AI) vaccines. Here, we evaluated the effects of adding ceftiofur, a third-generation cephalosporin, to an AI vaccine on vaccine stability and structure and on chick growth, immune efficacy, blood concentrations, biochemical and immunological indices, and gut microbiota. The results demonstrated that neither aqueous ceftiofur sodium nor ceftiofur hydrochloride oil emulsion formed a stable mixture with the vaccine.

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Background: Porcine epidemic diarrhea virus (PEDV) mainly causes acute and severe porcine epidemic diarrhea (PED), and is highly fatal in neonatal piglets. No reliable therapeutics against the infection exist, which poses a major global health issue for piglets. Luteolin is a flavonoid with anti-viral activity toward several viruses.

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(), the microorganism responsible for bovine tuberculosis (bTB), is transferred to people by the ingestion of unpasteurized milk and unprocessed fermented milk products obtained from animals with the infection. The identification of in milk samples is of the utmost importance to successfully prevent zoonotic diseases and maintain food safety. This study presents a comprehensive description of a highly efficient molecular test utilizing recombinase-aided amplification (RPA)-clustered regularly interspaced short palindromic repeat (CRISPR)-associated protein (Cas) 13a-lateral flow detection (LFD) for detection.

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Background: Gender consciousness directly affects the development of gender identity, which is a continuous and lifelong process. Meanwhile, hospitalization is a part of many children's lives and has an impact on their gender development.

Aim: To investigate the current situation of gender identity in lower primary school children by conducting a survey of 202 hospitalized children in the lower grades and to provide a theoretical basis and foundation for the cultivation of gender identity and medical treatment of children based on the results.

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Background: Various quantitative and quality assessment tools are currently used in nursing to evaluate a patient's physiological, psychological, and socioeconomic status. The results play important roles in evaluating the efficiency of healthcare, improving the treatment plans, and lowing relevant clinical risks. However, the manual process of the assessment imposes a substantial burden and can lead to errors in digitalization.

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Klebsiella variicola is an emerging pathogen that has become a threat to human and animal health. There is evidence that long noncoding RNAs (lncRNAs) are involved in a host cell's response to microbial infections. However, no study has defined the link between K.

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The widespread occurrence of fowl adenovirus serotype 4 (FAdV-4)-induced hepatitis-hydropericardium syndrome (HHS) has led to significant economic losses for the poultry industry. A sensitive, accurate, and practical FAdV-4 diagnostic approach is urgently required to limit the incidence of the disease. In the present study, a practical method for detecting FAdV-4 was developed using the CRISPR/Cas13a system and recombinase-aided amplification.

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Article Synopsis
  • PEDV infection leads to severe diarrhea in pigs, particularly affecting newborn piglets, and the study investigates the properties of exosomes released from infected and control cells.
  • Exosomes from the PEDV-infected group were found to be smaller, with significant differences in quantity and protein content compared to the control group's exosomes.
  • Proteomic analysis revealed 544 differentially expressed proteins related to key cellular pathways, potentially aiding in understanding PEDV's pathogenic mechanisms and identifying new antiviral targets.
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  • Porcine epidemic diarrhoea (PED) is a severe disease affecting pigs, particularly piglets, and is caused by the porcine epidemic diarrhoea virus (PEDV), which has a high mortality rate.
  • Researchers created a comprehensive CRISPR/Cas9 library to uncover host factors that help PEDV infect cells and discovered several previously unrecognized genes that promote infection.
  • The study revealed that knocking out specific genes, like TRIM2 and SLC35A1, can hinder PEDV replication, leading to potential new strategies for treatment and understanding host-pathogen dynamics.
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By analyzing the effects of acid rain and nitrogen deposition on the structure and diversity of soil bacterial communities, the response mechanism of Masson pine forests to environmental stress was investigated, providing a theoretical reference basis for resource management and conservation in Tianmu Mountain National Nature Reserve. Four treatments of the simulated acid rain and nitrogen deposition were set up in 2017 to 2021 in Tianmu Mountain National Nature Reserve (pH value of 5.5 and 0 kg·(hm·a), CK; pH value of 4.

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  • The high death rate of weaned piglets due to porcine epidemic diarrhea virus (PEDV) threatens the global pig industry, prompting urgent need for antiviral drug development.
  • The study highlights wogonin as a potential drug that can inhibit PEDV by targeting its main protease (Mpro), essential for the virus's replication.
  • Evidence from various assays shows that wogonin effectively interacts with Mpro, preventing PEDV's internalization, replication, and release, and supporting its potential as a therapeutic option against PEDV.
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is one of the most important zoonotic pathogens that can cause both acute and chronic illnesses in poultry flocks, and can also be transmitted to humans from infected poultry. The purpose of this study was to investigate the prevalence, antimicrobial resistance, and molecular characteristics of isolated from diseased and clinically healthy chickens in Anhui, China. In total, 108 isolates (5.

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Article Synopsis
  • Porcine circovirus type 4 (PCV4) was first identified in China in 2019 and is now impacting pig health across various regions, making early detection crucial to safeguard the pig industry.
  • Traditional methods for detecting PCV4, like PCR and serological assays, are labor-intensive and complex, prompting the need for quicker and simpler testing solutions.
  • Researchers developed a rapid testing kit using CRISPR and Cas13a technology, which can accurately detect PCV4 within 1.5 hours from genomic samples and shows high specificity against other porcine viruses, making it suitable for on-site testing.
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Tofu whey wastewater (TWW) is a by-product of the tofu production process, and contains high amounts of organic products and . However, no studies have been reported on whether naturally fermented TWW can be used as a beneficial additive for poultry production. This study analyzed the main nutritional components and microbial flora of naturally fermented TWW from rural tofu processing plants and their effect on chick production performance, role in modulating the biochemical and immune parameters, and protection against () infection.

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Porcine epidemic diarrhea virus (PEDV) is an enteric coronavirus that causes acute watery diarrhea and vomiting in unweaned piglets. Infections result in high mortality and serious economic losses to the swine industry. PEDV attenuated vaccine does not completely protect against all mutant wild-type strains, and PEDV infection can periodically occur.

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The porcine epidemic diarrhea virus (PEDV) has catastrophic impacts on the global pig industry. However, there is no consensus on the primary receptor associated with the PEDV invasion of host cells. An increasing number of studies have reported that PEDV invading host cells may require collaboration between multiple receptors and to better understand the virus-host interaction during PEDV entry, surface plasmon resonance (SPR) assays are performed to investigate relevant host factors interacting with PEDV spike-1 protein (S1) in Vero and IPEC-J2 cell membranes.

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  • APEC is a common bacterial disease in birds, and this study focuses on how bone marrow microRNAs (miRNAs) regulate the immune response to this infection in chickens.
  • Researchers analyzed miRNA expression in chickens that were either not exposed to APEC or challenged with it for 12 and 24 hours, discovering significant changes in miRNA levels.
  • The study identified key miRNAs involved in immune processes and highlighted important signaling pathways affected by APEC infection, suggesting that certain miRNAs might play a crucial role in enhancing the immune response against this pathogen.
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  • Pullorum disease, caused by Salmonella pullorum, significantly impacts the poultry industry, leading to major economic losses due to the unclear patterns of infection spread, fecal shedding, and antibody production in chickens of various ages.
  • The study revealed that young chickens (2 days old) had the highest levels of S. pullorum in their liver and heart, while older chickens (10 days and 42 weeks old) showed fluctuating fecal shedding and antibody responses, particularly a notable decline in shedding rates for the 42-week-olds.
  • Cohabitation experiments indicated the risk of horizontal transmission of S. pullorum, with some chickens becoming infected after being around already infected birds, highlighting the need for better understanding and control of this
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Fowl adenovirus serotype 4 (FAdV-4) caused hepatitis-hydropericardium syndrome in poultry and caused huge economic losses to the poultry industry. At present, antiviral drugs have not been reported to be effective against this virus, and new treatment methods are urgently needed to treat FAdV-4. Camptothecin has been shown to have antiviral activity against various viruses; however, whether it can inhibit FAdV-4 infection remains unclear.

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Exosomes are nanoscale vesicles actively secreted by a variety of cells. They contain regulated microRNA (miRNA), allowing them to function in intercellular communication. In the present study, the role of exosomal miRNAs in porcine epidemic diarrhea virus (PEDV) infection was investigated using exosomes isolated from Vero cells infected with PEDV.

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Avian pathogenic Escherichia coli (APEC) is a pathotype of extraintestinal pathogenic E. coli and one of the most serious infectious diseases of poultry. It not only causes great economic losses to the poultry industry, but also poses a serious threat to public health worldwide.

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Biosecurity plays a critical role in preventing and controlling the introduction and spread of infectious diseases. The COVID-19 pandemic in China triggered a nationwide lockdown policy which reduced most of the daily activities of people, but the pig industry was encouraged to ensure the pork supply. An investigation of biosecurity practices in intensive pig farms across several provinces in China was conducted in June 2020 via questionnaire to evaluate the factors that may pose viral diseases risk to the farms during the lockdown period from January to May 2020.

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Article Synopsis
  • Klebsiella variicola is a new pathogen that can cause severe bloodstream infections in animals, and its survival mechanisms in the bloodstream are not well understood.* ! -
  • A strain of K. variicola, linked to chicken infections, was identified as a new sequence type (ST174), and researchers conducted RNA sequencing to explore how it adapts in host serum.* ! -
  • They found 1,046 differentially expressed genes related to metabolism, stress resistance, and virulence factors, providing insights into how K. variicola thrives and causes infections in birds.* !
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