15,185 results match your criteria: "Veterinary Research Institute[Affiliation]"

Substances of organic origin are seeing increasing use in agriculture as rich sources of nutrients for plants. The aim of this study was to determine the microbiological contamination of sewage sludge and digestate to assess their safe use as fertilizers in Poland. The assessment of microbial soil, sewage sludge and digestate contamination was based on the total number of mesophilic bacteria and Gram-negative bacteria from the family.

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This research evaluated the impact of incorporating dried olive pulp (OP) into the feed of laying hens on the fatty acid profile, cholesterol, triglyceride, total phenolic, oleuropein and hydroxytyrosol content, and health lipid indices of eggs produced by mid- (39 weeks) and late-laying (59 weeks) birds. Over a 36-week trial, 300 eggs from 180 Isa-Brown hens, assigned to three dietary groups with different OP levels (CON, OP4 and OP6), were analyzed. OP reduced egg cholesterol, with significant effects in late-age eggs ( < 0.

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The current study investigated the impact of nutmeg essential oil (NEO) and tea tree essential oil (TTEO) on the preservation of raw chicken fillets during nine days of refrigerated storage study. The primary aim was to explore the antioxidant and antimicrobial properties of these essential oils (EOs) and assess their ability to extend the shelf life of poultry meat. Gas chromatography-mass spectrometry (GC-MS) was utilized to identify the chemical compositions of NEO and TTEO, revealing the presence of compounds like myristicin and terpenoids, known for their antimicrobial and antioxidant activities.

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is an important foodborne pathogen that can cause a range of illnesses in humans; it has also been a key focus for monitoring in the field of public health, including gastroenteritis, sepsis, and arthritis, and can also cause a decline in egg production in poultry and diarrhea and abortion in livestock, leading to death in severe cases, resulting in huge economic losses. This study aimed to investigate the isolation rate, antimicrobial resistance, serotypes, and genetic diversity of isolated from yak feces in various regions on the Qinghai-Tibet Plateau. A total of 1222 samples of yak dung were collected from major cities in the Qinghai-Tibet Plateau area, and the sensitivity of the isolated bacteria to 10 major classes of antibiotics was determined using the K-B paper disk diffusion method for drug susceptibility.

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Japanese encephalitis virus (JEV) is regarded as an emerging and reemerging pathogen that is a primary cause of viral encephalitis in humans. However, there is a scarcity of research on the prevalence of JEV genotypes across the different mosquito species in Shanghai. In this study, the diversity of mosquito species and prevalence of JEV in pig and sheep farms in Shanghai were surveyed in 2022.

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Triptolide alleviates allergic airway inflammation by inhibiting group 2 innate lymphoid cell function.

Int Immunopharmacol

January 2025

State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Animal Virology of the Ministry of Agriculture, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.

Group 2 innate lymphoid cells (ILC2s) produce the type 2 cytokines IL-5 and IL-13 and contribute to type 2 immune responses, such as allergic airway inflammation. However, specific drugs, especially traditional Chinese medicines, that target lung ILC2s have rarely been reported. Here, we demonstrate that triptolide ameliorates allergic airway inflammation by suppressing ILC2 activation.

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Pathogenicity of tick-derived lymphocytic choriomeningitis virus in BALB/c mice.

BMC Vet Res

January 2025

Laboratory of Pathogen Microbiology and Immunology, College of Life Science, Jilin Agricultural University, Changchun, Jilin Province, China.

Background: Lymphocytic choriomeningitis virus (LCMV) is a zoonotic pathogen primarily transmitted by rodents. Recently, LCMV has been detected in ticks from northeastern China; however, the pathogenicity of this virus in murine models remains to be elucidated.

Results: Here, we examined the tick-derived LCMV strain JX14 by inoculating BALB/c mice with 3.

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Japanese encephalitis virus (JEV) is the leading cause of viral encephalitis in the Asia-Pacific region. Amplification of JEV in pigs is a potent driver for spillover of the infection to humans, and hence monitoring of virus dynamics in pigs can provide insights into JEV ecology. To study the dynamics of natural JEV infection in a tropical region, two groups of immunologically naïve pigs consisting of six animals per group were kept as sentinels on two different farms in the district of Thanjavur, Tamil Nadu, India.

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Multi-epitope vaccines: a promising strategy against viral diseases in swine.

Front Cell Infect Microbiol

January 2025

School of Basic Medical Sciences, Binzhou Medical University, Yantai, China.

Viral infections in swine, such as African swine fever (ASF), porcine reproductive and respiratory syndrome (PRRS), and foot-and-mouth disease (FMD), have a significant impact on the swine industry. Despite the significant progress in the recent efforts to develop effective vaccines against viral diseases in swine, the search for new protective vaccination strategy remains a challenge. The antigenic epitope, acting as a fundamental unit, can initiate either a cellular or humoral immune response.

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Rapid detection of by recombinase-aided amplification combined with the CRISPR/Cas12a system.

Front Cell Infect Microbiol

January 2025

State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.

() is one of the primary agents involved in porcine respiratory disease complex, and circulates in the swine industry worldwide. The prevention and control of is complicated. Thus, a recombinase-aided amplification (RAA) assay coupled with the clustered regularly-interspaced short palindromic repeats (CRISPR)/Cas12a system was established for the detection of .

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Advancements in nanoparticle-based vaccine development against Japanese encephalitis virus: a systematic review.

Front Immunol

January 2025

State Key Laboratory for Animal Disease Control and Prevention, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.

Vaccination remains the sole effective strategy for combating Japanese encephalitis (JE). Both inactivated and live attenuated vaccines exhibit robust immunogenicity. However, the production of these conventional vaccine modalities necessitates extensive cultivation of the pathogen, incurring substantial costs and presenting significant biosafety risks.

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An effectively protective VLP vaccine candidate for both genotypes of feline calicivirus.

Front Immunol

January 2025

State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.

Feline calicivirus (FCV) is one of the most widespread pathogens affecting feline animals. Currently, FCV is believed to be divisible into two genotypes, with prevalent strains encompassing both GI and GII. Vaccination is the primary means of preventing FCV infection, yet traditional inactivated or attenuated vaccines theoretically pose potential safety concerns.

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Redefining () species complex in Greece focusing on the mitogenome of .

Curr Res Parasitol Vector Borne Dis

November 2024

Veterinary Research Institute, Hellenic Agricultural Organization (ELGO) -DIMITRA, Campus ELGO, Thermi, 57001, Thessaloniki, Greece.

species complex, referred to as (), is distributed globally with some species distributed in specific regions and others spread globally. In Greece, () in dogs, and and in livestock, have been repeatedly reported however only based on morphological identification. Recently, there has been a great effort to accurately identify the species belonging to the species complex, using modern molecular tools and describe their spatial distribution.

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Article Synopsis
  • PDCoV is increasingly affecting newborn piglets, causing diarrhea, and poses significant challenges to the pig industry due to its potential for cross-species transmission.
  • A new PDCoV strain was isolated from piglets in China, showing high genetic similarity to other strains and notable amino acid mutations in its S protein that alter its structure and function.
  • The study confirmed that this strain damages the intestinal barrier of piglets, leads to clinical symptoms like diarrhea, and lays the groundwork for future vaccine and diagnostic development to combat piglet diarrhea.
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Detection and analysis of enzootic nasal tumor virus 2 in China.

J Vet Diagn Invest

January 2025

State Key Laboratory for Animal Disease Control and Prevention, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China.

Enzootic nasal tumor virus 2 (ENTV2), the etiologic agent of enzootic nasal adenocarcinoma (ENA) in goats, is highly prevalent in China and causes significant economic losses to the goat industry. Here we describe the occurrence of ENA on a Dazu black goat farm in Chongqing City. At autopsy, nasal cavity masses were observed within the nose of an affected goat; histologically, the tumor was a nasal adenocarcinoma.

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Geographical distribution and characterization of Jingmen tick virus in wild boar in China.

Virol Sin

January 2025

Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, State Key Laboratory of Pathogen and Biosecurity, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun 130122, China. Electronic address:

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Taylorella equigenitalis is the causative agent of sexually transmitted contagious equine metritis. Infections manifest as cervicitis, vaginitis and endometritis and cause temporary infertility and miscarriages of mares. While previous studies have analyzed this organism for various parameters, the evolutionary dynamics of this pathogen, including the emergence of antibiotic resistance, remains unresolved.

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Chain Length Does Matter: Development of High-Potency QS-21-Based Vaccine Adjuvants.

J Med Chem

January 2025

State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000, PR China.

Article Synopsis
  • Adjuvants like QS-21 are essential for boosting vaccine effectiveness, but QS-21 faces challenges such as limited availability, complex synthesis, and toxicity.
  • Researchers are working on creating simpler and safer analogues of QS-21 that maintain strong immunogenic properties.
  • The analogues VA05 and VA06 show promising results, generating similar antibody responses as QS-21 while being less toxic, making them potential candidates for better vaccine adjuvants.
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A Surrogate BSL2-compliant Infection Model Recapitulating Key Aspects of Human Marburg Virus Disease.

Emerg Microbes Infect

January 2025

State Key Laboratory of Pathogenic Microorganisms, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun 130122, China.

Marburg virus disease (MVD) is a severe infectious disease characterized by fever and profound hemorrhage caused by the Marburg virus (MARV), with a mortality rate reaching 90%, posing a significant threat to humans. MARV lies in its classification as a biosafety level four (BSL-4) pathogen, which demands stringent experimental conditions and substantial funding. Therefore, accessible and practical animal models are urgently needed to advance prophylactic and therapeutic strategies for MARV.

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Article Synopsis
  • Newcastle disease virus (NDV) serves as a valuable model for studying viral mechanisms and is being utilized as a vector for vaccine development and cancer therapy.
  • A reverse genetic system was created for the NDV Mukteswar strain, allowing for the insertion of the enhanced green fluorescent protein (EGFP) gene between the P and M genes to form a stable transcription unit that expresses exogenous genes over multiple generations.
  • Through this system, a recombinant virus that co-expresses EGFP and cherry fluorescent protein (CFP) was developed, demonstrating efficient simultaneous expression of both proteins, though with slight differences in expression levels, and similar growth rates with mild virulence attenuation compared to the original strains.
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Dilong (Earthworm) alleviates cyclophosphamide-induced brain injury by reducing mitochondrial damage in neuronal cells.

Neuroscience

December 2024

College of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, China; Traditional Chinese Veterinary Research Institute, Southwest University, Rongchang, Chongqing 402460, China. Electronic address:

The experiment was designed to explore the effects and mechanism of Dilong on alleviating cyclophosphamide (CTX)-induced brain injury in mice. Fifty male SPF Kunming mice aged 6-8 weeks were randomly divided into five groups: Group A served as the control group; Group B received intraperitoneal injection of CTX; Groups C, D, and E were administered Dilong at doses of 100, 200, and 400 mg/kg respectively for 14 days after intraperitoneal injection of CTX. Results showed that after modeling, the movement speed of mice significantly decreased (P < 0.

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Pathogenicity comparison between porcine G9P[23] and G5P[23] RVA in piglets.

Vet Microbiol

December 2024

State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China. Electronic address:

Rotavirus Group A (RVA) is a primary pathogen that causes viral diarrhea in humans and animals. Porcine rotaviruses (PoRVs) are widely epidemic in pig farms in China, causing great economic losses to the swine industry. In the past 30 years, the G5 RVA had been the main epidemic genotype in pig farms worldwide.

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Construction and immunological evaluation of recombinant adenovirus vaccines of new novel NADC34-PRRSV strains in pigs.

Front Vet Sci

December 2024

Changchun Veterinary Research Institute, State Key Laboratory of Pathogen and Biosecurity, Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Chinese Academy of Agricultural Sciences, Changchun, China.

Introduction: Porcine reproductive and respiratory syndrome virus (PRRSV) causes reproductive and respiratory diseases in sow herds and piglets. The emergence of ORF5 RFLP 1-7-4-like (NADC34-like) PRRSV strain in China has brought a new round of challenges to PRRSV prevention.

Methods: In addition, recombinant adenovirus vaccine candidates against the newly emerged NADC34-like strain were constructed in the study; the immunogenicity of the vaccine was investigated in piglets.

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Comprehensive multi-tissue epigenome atlas in sheep: A resource for complex traits, domestication, and breeding.

Imeta

December 2024

State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems; Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Afairs; Engineering Research Center of Grassland Industry, Ministry of Education; College of Pastoral Agriculture Science and Technology Lanzhou University Lanzhou China.

Article Synopsis
  • The study highlights the need for a comprehensive functional annotation of the sheep genome to better understand agronomic traits, particularly regarding tail fat weight.
  • Researchers created an extensive dataset combining transcriptomic, epigenomic, whole-genome, and phenotypic data across multiple sheep breeds, identifying over 750,000 functional elements, with 60% being novel.
  • Key findings include tissue-specific regulatory elements related to sensory and immune functions and a specific genetic variant linked to tail fat deposition, paving the way for future complex trait studies in sheep.
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A nucleoside-modified rabies mRNA vaccine induces long-lasting and comprehensive immune responses in mice and non-human primates.

Mol Ther

December 2024

School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 211112, China; Institute of Translational Medicine, China Pharmaceutical University, Nanjing 211112, China. Electronic address:

Rabies is a lethal zoonotic infectious disease. Vaccines against the rabies virus have significantly reduced the number of deaths from the disease. However, all the licensed rabies vaccines are inactivated vaccines, which have limited immunogenicity and complicated immunization procedures.

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