African swine fever virus (ASFV) causes highly contagious swine disease, African swine fever (ASF), thereby posing a severe socioeconomic threat to the global pig industry and underscoring that effective antiviral therapies are urgently required. To identify safe and efficient anti-ASFV compounds, a natural compound library was screened by performing an established cell-based ELISA in an ASFV-infected porcine alveolar macrophage (PAM) model. In total, 6 effective anti-ASFV compounds with low cytotoxicity were identified.
View Article and Find Full Text PDFThe porcine epidemic diarrhea virus (PEDV), belonging to the α-coronavirus, is the causative agent of porcine epidemic diarrhea (PED). Presently, protection from the existing PEDV vaccine is not effective. Therefore, anti-PEDV compounds should be studied.
View Article and Find Full Text PDFAfrican swine fever virus (ASFV), the etiological agent of African swine fever (ASF), causes deadly hemorrhagic fever in domestic pigs. ASF's high mortality and morbidity have had disastrous effects on the world's swine industry. In recent years, the number of African swine virus strains has increased and presented new challenges for detecting classical ASFV-p72-based viruses.
View Article and Find Full Text PDFBackground: Lumpy skin disease (LSD) is an acute or subacute infectious disease caused by lumpy skin disease virus (LSDV) of genus Capripoxvirus. The outbreaks of LSD were confirmed in the Yili area of the Xinjiang autonomous region in August 2019 and the Fujian province in June 2020. We detected LSDV in our daily monitoring work, then isolated, identified and sequenced the virus, and analyzed the whole genome characteristics of the isolated strain.
View Article and Find Full Text PDFLumpy skin disease (LSD) is a severe disease of bovine characterized by nodules on the skin, mucous membranes, and profuse nasal discharge which causes severe economic losses. In October 2020, an LSD outbreak case was found in Inner Mongolia Autonomous Region, China. A total of 1,206 cattle were sold from the same imported animal quarantine field to 36 farms after the quarantine period finished, and over 30 farmers reported symptoms such as skin scabs found in newly arrived cattle shortly after that.
View Article and Find Full Text PDFIt has been reported that there were several "mutant isolated in the field " of African swine fever virus (ASFV) since ASFV was reported, which may be the result of the continuous adaptation and evolution of ASFV. The emergence of ASFV field mutants may lead to chronic or asymptomatic "atypical clinical symptoms" in pigs and hinder the development of porcine industry. Here we analyzed the published ASFV "field attenuated strain" gene sequences and reviewed the genetic differences between field attenuated and virulent ASFV strains, hoping for providing a reference for the scientific prevention and control of ASF and the development of new vaccines.
View Article and Find Full Text PDFGen Comp Endocrinol
January 2020
Stanniocalcin (STC-1), a kind of glycoprotein hormone, was first found in fish and mainly regulates calcium/phosphorus metabolism in the body. To explore the biological function of the porcine STC-1 gene, the effects of changes in stanniocalcin expression on cellular metabolism and mitochondrial function were studied. A vector overexpressing the STC-1 gene and an siRNA silencer of the STC-1 gene were transfected into porcine kidney epithelial PK15 cells.
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