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KIM, Bongtae,AHN, Kyoung Kyu,HA, Yooncheol,LEE, Yong Hoon,KIM, Duyeol,LIM, Jeong Han,KIM, Sung-Hoon,KIM, Mi-Young,CHO, Kyung-Dong,LEE, Bog-Hieu,CHAE, Chanhee Japanese Society of Veterinary Science 2009 The Journal of veterinary medical science Vol.71 No.5
<P>The relationship between tumor necrosis factor (TNF)-α level, body temperature, and pulmonary lesion score was determined in 3-week-old pigs inoculated intranasally with swine influenza virus (SIV) subtype H1N2. The expression of TNF-α was measured in bronchoalveolar lavage (BAL) fluids by enzyme-linked immunosorbent assay and lung tissues by immunohistochemistry. In BAL fluid, TNF-α concentration was maximal at 1 days post-inoculation (dpi), declined markedly by 3 dpi (<I>P</I><0.05) and steady thereafter. Mean rectal temperatures were above 40°C for the infected groups at 1 dpi and declined markedly by 3 dpi. The body temperatures were correlated with the levels of TNF-α in BAL fluids from pigs experimentally infected with SIV (<I>r</I><SUB>s</SUB>=0.9754, <I>P</I><0.05). The pulmonary lesion scores were correlated with the means of positive cells by immunohistochemistry for TNF- α (<I>r</I><SUB>s</SUB>=0.9949, <I>P</I><0.001). The results suggest that the expression of TNF-α protein plays an important role in induction of pulmonary lesion and clinical sign such as fever in SIV infection.</P>
KIM, Duyeol,HA, Yooncheol,LEE, Yong-Hoon,CHAE, Sungwon,LEE, Kichan,HAN, Kiwon,KIM, Junghyun,LEE, Ju-Ho,KIM, Sung-Hoon,HWANG, Kyu-Kye,CHAE, Chanhee Japanese Society of Veterinary Science 2009 The Journal of veterinary medical science Vol.71 No.7
<P><I>In situ</I> hybridization and immunohistochemistry with different types of antibody (monoclonal vs. polyclonal, natural vs. synthetic) was compared to detect porcine circovirus 2 (PCV2) in formalin-fixed, paraffin-embedded tissues from pigs with experimentally and naturally occurring postweaning multisystemic wasting syndrome. PCV2 DNA and antigen was detected in tissues from both experimentally and naturally infected pigs by <I>in situ</I> hybridization and immunohistochemistry, respectively. Statistical evaluation revealed that more PCV2 positive signals were significantly detected in both experimentally and naturally infected pigs by <I>in situ</I> hybridization compared with immunohistochemistry (<I>P</I><0.05). The results of this study demonstrated that<I> in situ</I> hybridization proved more sensitive than immunohistochemistry for the detection of PCV2 in formalin-fixed, paraffin-embedded lymph node tissues.</P>
Kim, Duyeol,Ha, Yooncheol,Oh, Yeonsu,Han, Kiwon,Noh, Seung Ho,Kim, Cheolwoo,Kim, Sung-Hoon,Chae, Chanhee AAVLD 2010 JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION Vol.22 No.2
<P>The aim of the current study was to develop a nonradioactive in situ hybridization assay that can differentiate between genotypes 2a and 2b of Porcine circovirus-2 (PCV-2) in formalin-fixed, paraffin-embedded lymph node tissues from pigs with postweaning multisystemic wasting syndrome. Two different digoxigenin-labeled oligonucleotide probes were designed from the PCV-2 open reading frame 2 sequences. The PCV-2a-specific probe did not hybridize with formalin-fixed, paraffin-embedded lymph nodes from naturally PCV-2b-infected pigs and vice versa. Both PCV-2a-specific and PCV-2b-specific probes gave consistent negative signals in lymph nodes from naturally PCV-1-infected pigs. The in situ hybridization assay described in the present study represents a diagnostic tool that can differentiate between the 2 genotypes of PCV-2.</P>
Subchronic Oral Toxicity Study of Acanthopanax divaricatus var. albeofructus in Rats
Kim, Myoung Jun,Lee, Mi Ju,Lee, Yong-Hoon,Park, Sun Hee,Kim, Duyeol,Park, Cheol Beom,Kang, Jin Seok,Kang, Jong-Koo Korean Society of ToxicologyKorea Environmental Mu 2017 Toxicological Research Vol.33 No.1
Acanthopanax divaricatus (Siebold & Zucc.) Seem. var. albeofructus (ADA), a traditional medical herb, has been used to treat arthritis and muscular injury, to strengthen muscle and bone, and to get vital energy. However, information regarding its toxicity is limited. ADA was administered by oral gavage to groups of rats at doses of 0 (control), 1,000, 1,500, 2,000, 2,500, and 3,000 mg/kg five times per week for 13 weeks. Mortality, clinical signs, body weights, food consumption, hematology, serum chemistry, urinalysis, organ weights, necropsy, histopathological finding, vaginal cytology, and sperm morphology were compared between control and ADA-treated groups. Salivation was intermittently observed in both sexes receiving 2,500 and 3,000 mg/kg directly after dosing. Absolute liver weights increased in females receiving 2,000, 2,500, and 3,000 mg/kg ADA (P < 0.05, P < 0.01, and P < 0.01, respectively) and so did the relative liver weights (P < 0.001). Salivation and increased liver weight were ADA-related changes but not considered to be adverse effects. Salivation was intermittent and transient, and the liver weight increase was minor and not accompanied by other changes such as hepatic morphological or functional alterations. The no-observed-adverse-effect-level was determined to be at least 3,000 mg/kg in both sexes of rats.
Kim, Duyeol,Han, Kiwon,Oh, Yeonsu,Kim, Chung Hyun,Kang, Ikjae,Lee, Jeehoon,Gottschalk, Marcelo,Chae, Chanhee Canadian Veterinary Medical Association = Associat 2010 Canadian journal of veterinary research Vol.74 No.4
<P>The objective of this study was to determine the capsular serotypes and potential virulence factors of Streptococcus suis isolated from pigs with polyserositis. Among the 24 isolates evaluated, serotype 3 [7 (29%) of the isolates] and serotype 4 [5 (21%)] were the most common. The isolates were also studied for the presence of the genes mrp, epf, and sly, which encode muramidase-released protein (MRP), extracellular factor (EF), and suilysin (SLY), respectively. Of the 24 isolates, 8 carried mrp: 4 of serotype 3, 2 of serotype 2, and 2 of serotype 4. One mrp(+) isolate (serotype 2) also carried the epf gene. All 24 isolates carried the sly gene. The serotype and genotype distribution greatly differed from that reported for isolates from pigs with other clinical manifestations of S. suis infection in other countries.</P>
KIM, Bongtae,LEE, Kichan,HAN, Kiwon,KIM, Duyeol,HA, Yooncheol,KIM, Chung Hyun,OH, Yeonsu,KANG, Ikjae,LEE, Jeehoon,CHAE, Chanhee Japanese Society of Veterinary Science 2010 The Journal of veterinary medical science Vol.72 No.9
<P>The aim of this study was to develop <I>in situ</I> hybridization for detection of <I>Mycoplasma hyorhinis</I> in formalin-fixed, paraffin-wax-embedded tissues from pigs with polyserositis. <I>M. hyorhinis</I> was isolated from the spleen (2 pigs) and pericardium (1 pig). <I>M. hyorhinis</I> DNA was detected 16 out of 20 pigs with polyserositis. <I>In situ</I> hybridization produced a distinct positive signal for the <I>M. hyorhinis</I> p37 gene in inflammatory cells in the polyserositis. <I>In situ</I> hybridization developed in the present study present diagnostic tools capable of detection of <I>M. hyorhinis</I> in formalin-fixed, paraffin-wax-embedded tissues from the naturally infected pigs.</P>
Cyclodipeptide-bridged porphyrin dimer supramolecular assemblies
Kim, Dongyong,Heo, Jungmi,Ham, Sujin,Yoo, Hyejin,Lee, Chi-Hwa,Yoon, Hongsik,Ryu, Duyeol,Kim, Dongho,Jang, Woo-Dong Royal Society of Chemistry 2011 Chemical communications Vol.47 No.8
<P>A cyclodipeptide-bridged porphyrin dimer has formed fibrous and toroidal multi-porphyrin array systems by hydrogen bonding-mediated self-assembly.</P> <P>Graphic Abstract</P><P>A cyclodipeptide-bridged porphyrin dimer has formed fibrous and toroidal multi-porphyrin array systems by hydrogen bonding-mediated self-assembly. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0cc04654j'> </P>
Expression of mucins on the mucosal surface of lungs of 4-week-old pigs
Kim, Chung Hyun,Lee, Kichan,Han, Kiwon,Oh, Yeonsu,Kim, Duyeol,Seo, Hwi Won,Park, Changhoon,Ha, Mi-Kyoung,Kim, Sung-Hoon,Cho, Kyung-Dong,Lee, Bog-Hieu,Chae, Chanhee Springer-Verlag 2011 Veterinary research communications Vol.35 No.4