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Seroprevalence of subtype H3 influenza A virus in South Korean cats
Jeoung, Hye-Young,Shin, Bo-Hye,Lee, Won-Ha,Song, Dae-Sub,Choi, Young-Ki,Jeong, WooSeog,Song, Jae-Young,An, Dong-Jun SAGE Publications 2012 JOURNAL OF FELINE MEDICINE AND SURGERY Vol.14 No.10
<P>To investigate the potential transmission of subtype H3 influenza virus to cats, a serological survey was carried out in South Korea. Serum samples (n=1027) were obtained from 809 pet cats and 218 domesticated cats living in urban colonies (D-cats) from 2008 to 2010, and tested using an influenza anti-nucleoprotein (NP)-specific enzyme-linked immunosorbent assay (ELISA) and the haemagglutination inhibition (HI) test, which was recommended by the World Organization for Animal Health. Anti-influenza virus antibodies were detected in 3.12% and 2.43% of cat sera tested using the NP-specific ELISA and HI test, respectively. Anti-H3 antibodies were also identified when the HI assay was used for influenza virus serotyping. These data may indicate the sporadic transmission of subtype H3 influenza virus from other infected species to cats in South Korea.</P>
Molecular characterization and variability of the genes from EHV-1 in Korea
Hye-young Jeoung(Hye-young Jeoung),Hyung-Woo Kang(Hyung-Woo Kang),Eun-Yong Lee(Eun-Yong Lee),Kyoung-Ki Lee(Kyoung-Ki Lee),Ji-Young Park(Ji-Young Park),Bok-Khyung Ku(Bok-Khyung Ku) 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Investigation of persistent infection with bovine viral diarrhea in Korean native cattle
Hye-Young Jeoung(Hye-Young Jeoung),Eun-Yong Lee(Eun-Yong Lee),Se-Jin Park(Se-Jin Park),Hyung-Woo Kang(Hyung-Woo Kang),Ji-Young Park(Ji-Young Park),Kyoung-Ki Lee(Kyoung-Ki Lee),Bok-Kyung Ku(Bok-Kyung K 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Jeoung, Hye-Young,Lee, Won-Ha,Jeong, Wooseog,Ko, Young-Joon,Choi, Cheong-Up,An, Dong-Jun Elsevier 2010 Research in veterinary science Vol.89 No.2
<P><B>Abstract</B></P><P>Virus-like particles (VLPs) are particles that consist of viral capsid proteins and are structurally similar to authentic virus. To express VLPs of the porcine encephalomyocarditis virus (EMCV) and investigate their efficacy and immuno response <I>in vivo</I>, a plasmid (P12A3C-pCI) containing the P12A and 3C genes of the EMCV-K3 viral strain was constructed. The VLPs of EMCV-K3 were successfully assembled in 293FT cells on 3 days after transfection with P12A3C-pCI and were identified as particles of about 30–40nm using transmission electron microscopy (TEM). In an <I>in vivo</I> experiment, the murine cytokines induced by VLPs of naked DNA vaccine showed that the Th1 indicators IL-2, TNF-α and GM-CSF, and the Th2 indicators IL-4 and IL-10 were increased. The immunization of mice with the P12A3C-pCI plasmid induced high levels of neutralizing antibody from 128- to 256-fold and led to a significant protection ratio (90%) after challenge with EMCV-K3 (wild-type strain). These VLPs may represent a novel vaccine strategy for the control of EMCV infection on pig farms.</P>
Jeoung, Hye-Young,Song, Dae-Sub,Jeong, Woo Seog,Lee, Won-Ha,Song, Jae-Young,An, Dong-Jun The Society ; Maruzen Co. [distributor] 2013 The Journal of veterinary medical science Vol.75 No.1
<P>A multiplex reverse transcription polymerase chain reaction (mRT-PCR) assay was developed for the simultaneous detection of canine distemper virus (CDV), canine respiratory coronavirus (CRCoV) and canine influenza virus (CIV). These viral pathogens are all causative agents of canine infectious respiratory disease (CIRD). The sensitivity and specificity of the mRT-PCR were determined by comparing it to a rapid antigen test (RAT) or immuno-chromatography test kit and reverse transcription-polymerase chain reaction (RT-PCR) in the detection of CDV, CRCoV and CIV antigens present in 100 clinical samples (nasal swabs and whole blood samples) from 50 dogs with respiratory disease symptoms. This study revealed that mRT-PCR had almost exactly the same performance or results were almost 100% in agreement with that of RT-PCR and RAT both in terms of the assay sensitivity and specificity which was more highly evident in detecting CIV, CDV and CRCoV antigens present in canine nasal swab samples. Therefore, this assay could be a better alternative for the definitive and simultaneous ante-mortem detection of the three viral pathogens that cause CIRD by using nasal swabs.</P>
Hye-Young Song,In-Jeoung Baek,Seung-Hee Ryu,Je-won Ryu,Eun-Young Park,Seung-Ho Heo 한국실험동물학회 2021 한국실험동물학회 학술발표대회 논문집 Vol.2021 No.7
Human immune system (HIS) mice have become valuable animal models for the study of human diseases, and peripheral blood mononuclear cell engrafted humanized mice (PBMCHu mice) mice provide a useful platform for cancer immunotherapy research. However, there have been limitations such as insufficient engraftment of human immune cells and development of graft versus host disease (GVHD). To overcome these limitation, we generated CD47; Rag2; IL2rg triple KO mice (TKO) using NOD-Rag2null IL2rgnull mice (DKO) and transplantation efficacy of human leukocytes and GVHD incidence were compared in PBMC-Hu mice. Examining flow cytometry results, more than 25% Human CD45+ cells were observed in both TKO groups from 3 weeks after PBMC administration, and it was observed more than 1 week later in DKO groups. Most of the engrafted cells were CD3+ T cells, and some CD19 B cells and CD66b+ granulocytes were also observed. The ratio of human leukocytes engraftment was greater in TKO mice, however, clinical symptoms of GVHD such as weight loss, jaundice, anemia and death of animals were more severe than in DKO mice. In histopathology, inflammatory cell aggregation, necrotic or apoptotic cells were observed in liver, lung and kidney, and semi-quantitative lesion scores were greater in TKO mice groups. Human CD45, CD3 and CD19 positive cells were also observed in immunohistochemistry. CD47 protein present on myeloid cells and inhibit phagocytosis through ligation of signal-regulatory protein alpha (SIRPα). In this study, we generate TKO mice to improve PBMC-Hu mice. Engraftment of human leukocytes was increased, but symptoms of GVHD were also more severe in TKO mice than DKO mice. Further study for overcoming development of GVHD and poor engraftment of leukocytes other than T cells is needed.