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전체 선택해제
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Production of transgenic pigs using a pGFAP-CreERT2/EGFP LoxP inducible system for central nervous system disease models
Seon-Ung Hwang, Kiyoung Eun, Junchul David Yoon, Hyunggee Kim, Sang-Hwan Hyun 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 3호 13 434-445 (12 pages)
confirmed by immunofluorescence staining and PCR. Real-time PCR analysis showed that pGFAP promoter-driven Cre fused to the mutated human ligand-binding domain of the estrogen receptor (CreERT2) mRNA was highly expressed in the cerebrum. Semi-nested PCR analysis revealed that CreERT2-mediated recombination was induced in cerebrum and cerebellum but not in skin. Thus, we successfully generated a TG pig with a 4-hydroxytamoxifen (TM)-inducible pGFAP-CreERT2/EGFPLoxP recombination system via SCNT. -
Cloned foal derived from in vivo matured horse oocytes aspirated by the short disposable needle system
Wonyou Lee, Kilyoung Song, Inhyung Lee, Hyungdo Shin, Byeong Chun Lee, Seongchan Yeon, Goo Jang 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 4호 15 509-516 (8 pages)
a short disposable needle system (14-G) by comparing the oocyte recovery rate with that of a long double lumen needle (12-G); (2) to investigate the developmental competence of recovered oocytes after SCNT and embryo transfer. The recovery rates with the short disposable needle vs. the long needle were not significantly different (47.5% and 35.0%, respectively). Twenty-six SCNT embryos were transferred to 13 mares, and one mare delivered a live offspring at Day 342. There was a perfect identity... -
Inhibitory Activity of Sedum middendorffianum-Derived 4-Hydroxybenzoic Acid and Vanillic Acid on the Type III Secretion System of Pseudomonas syringae pv. tomato DC3000
Ji Eun Kang, Byeong Jun Jeon, Min Young Park, Beom Seok Kim 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 8 608-617 (10 pages)
The type III secretion system (T3SS) is a key virulence determinant in the infection process of Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Pathogen constructs a type III apparatus to translocate effector proteins into host cells, which have various roles in pathogenesis. 4-Hydroxybenozic acid and vanillic acid were identified from root extract of Sedum middendorffianum to have inhibitory effect on promoter activity of hrpA gene encoding the structural protein of the T3SS apparatus. The... -
Research Notes : Estrogenic Compounds Compatible with a Conditional Gene Expression System for the Phytopathogenic Fungus Fusarium graminearum
한국식물병리학회 The Plant Pathology Journal 5 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 4호 7 349-353 (5 pages)
a conditional gene expression system for this fungus using a ZEA-inducible promoter (Pzear). In the present study, four other estrogenic compounds, including β-estradiol, estriol, estrone, and secoisolariciresinol, were screened as possible substitutes for ZEA in this system. Among them, β-estradiol was able to successfully induce the expression of a gene controlled by Pzear, while estrone was only able to partially induce its expression but the other two compounds were not effective. In... -
Genotypic and Phenotypic Characterization of Shiga Toxin-producing Escherichia coli Isolates from the Retail Meats and Meat byproducts in Korea
June Bong Lee, Dalmuri Han, Jeong Hoon Park, Hyung Tae Lee, Hyun Seok Joh, Chong Hae Hong, Jang Won Yoon 대한수의학회 대한수의학회 학술대회발표집 1 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 131 400-400 (1 pages)
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Prevalence, Antibiotic Resistance, and Virulence Features of Shiga Toxin-producing Escherichia coli Isolates from the Retail Meats and Meat by-products in Korea
June Bong Lee, Dalmuri Han, Jeong Hoon Park, Hyung Tae Lee, Hyun Seok Joh, Yeon Soo Chung, Suk Shin, Yong Ho Park , Chong Hae Hong, Jang 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 81 180-181 (2 pages)
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Genetic characteristics of canine parvovirus2 (CPV2) in Korea
Boyoun Moon, Seong Hee Kim, Yeon Hee Kim, ByongJae So, Kyoung Ki Lee 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 126 274-275 (2 pages)
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Effect of immunization routes and protective efficacy of Brucella antigens delivered via Salmonella vector vaccine
Jonathan Lalsiamthara, Gayeon Won, John Hwa Lee 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 3호 11 416-425 (10 pages)
An anti-Brucella vaccine candidate comprised of purified Brucella lipopolysaccharide (LPS) and a cocktail of four Salmonella Typhimurium (ST)-Brucella vectors was reported previously. Each vector constitutively expressed highly conserved Brucella antigens (rB), viz., lumazine synthase (BLS), proline racemase subunit A, outer membrane protein-19 (Omp19), and Cu-Zn superoxide dismutase (SOD). The present study determined a relative level of protection conferred by each single strain. Upon virulent... -
Hepatitis E virus as an emerging zoonotic pathogen
Woo-Jung Park, Byung-Joo Park, Hee-Seop Ahn, Joong-Bok Lee, Seung-Yong Park, Chang-Seon Song, Sang-Won Lee, Han-Sang Yoo, In-Soo 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 1 1-11 (11 pages)
Hepatitis E outbreaks are a serious public health concern in developing countries. The disease causes acute infections, primarily in young adults. The mortality rate is approximately 2%; however, it can exceed 20% in pregnant women in some regions in India. The causative agent, hepatitis E virus (HEV), has been isolated from several animal species, including pigs. HEV genotypes 3 and 4 have been isolated from both humans and animals, and are recognized as zoonotic pathogens. Seroprevalence... -
Establishment and evaluation of a murine ανβ3-integrin- expressing cell line with increased susceptibility to Foot- and-mouth disease virus
Wei Zhang, Kaiqi Lian, Fan Yang, Yang Yang, Zhijian Zhu, Zixiang Zhu, Weijun Cao, Ruoqing Mao, Ye Jin, Jijun He, Jianhong Guo, X 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 3호 3 265-272 (8 pages)
Integrin ανβ3 plays a major role in various signaling pathways, cell apoptosis, and tumor angiogenesis. To examine the functions and roles of ανβ3 integrin, a stable CHO-677 cell line expressing the murine ανβ3 heterodimer (designated as “CHO-677-mανβ3” cells) was established using a highly efficient lentiviral-mediated gene transfer technique. Integrin subunits αν and β3 were detected at the gene and protein levels by polymerase chain reaction (PCR) and indirect... -
Classical natural ovine scrapie prions detected in practical volumes of blood by lamb and transgenic mouse bioassays
Rohana P. Dassanayake, Thomas C. Truscott, Dongyue Zhuang, David A. Schneider, Sally A. Madsen-Bouterse, Alan J. Young, James B. 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 2호 7 179-186 (8 pages)
Scrapie is diagnosed antemortem in sheep by detecting misfolded isoforms of prion protein (PrP) in lymphoid follicles of the rectal mucosa and nictitating membranes. Assay sensitivity is limited if (a) the biopsy is collected early during disease development, (b) an insufficient number of follicles is collected, or (c) peripheral accumulation of PrP is reduced or delayed. A blood test would be convenient for mass live animal scrapie testing. Currently approved techniques, however, have their own... -
Prevalence and characteristics of Shiga toxin-producing Escherichia coli (STEC) from cattle in Korea between 2010 and 2011
Eun Kang, Sun Young Hwang, Ka Hee Kwon, Ki Yeon Kim, Jae Hong Kim, Yong Ho Park* 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 3호 5 369-379 (11 pages)
A total of 156 Shiga-like toxin producing Escherichia coli (STEC) were isolated from fecal samples of Korean native (100/568, 18%) and Holstein dairy cattle (56/524, 11%) in Korea between September 2010 and July 2011. Fifty-two STEC isolates (33%) harbored both of shiga toxin1 (stx1) and shiga toxin2 (stx2) genes encoding enterohemolysin (EhxA) and autoagglutinating adhesion (Saa) were detected by PCR in 83 (53%) and 65 (42%) isolates, respectively. By serotyping, six STEC from native cattle and... -
Equine hyperimmune serum protects mice against Clostridium difficile spore challenge
Weiwei Yan, Kang-Soon Shin, Shih-Jon Wang, Hua Xiang, Thomas Divers, Sean McDonough, James Bowman, Anne Rowlands, Bruce Akey, Hu 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 11 249-258 (10 pages)
Clostridium (C.) difficile is a common cause of nosocomial diarrhea in horses. Vancomycin and metronidazole have been used as standard treatments but are only moderately effective, which highlights the need for a novel alternative therapy. In the current study, we prepared antiserum of equine origin against both C. difficile toxins A and B as well as whole-cell bacteria. The toxin-neutralizing activities of the antibodies were evaluated in vitro and the prophylactic effects of in vivo passive... -
Identification of abnormal gene expression in bovine transgenic somatic cell nuclear transfer embryos
Jongki Cho, Sungkeun Kang, Byeong Chun Lee* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 8 225-231 (7 pages)
This study was conducted to investigate the expression of three genes related to early embryonic development in bovine transgenic cloned embryos. To accomplish this, development of bovine transgenic somatic cell nuclear transfer (SCNT) embryos was compared with non-transgenic embryos. Next, mRNA transcription of three specific genes (DNMT1, Hsp 70.1, and Mash2) related to early embryo development in transgenic SCNT embryos was compared between transgenic and non-transgenic SCNTs, parthenogenetic... -
An overview of calf diarrhea - infectious etiology, diagnosis, and intervention
Yong-il Cho, Kyoung-Jin Yoon* 대한수의학회 Journal of Veterinary Science 17 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 1호 1 1-17 (17 pages)
of the 2007 National Animal Health Monitoring System for U.S. dairy, half of the deaths among unweaned calves was attributed to diarrhea. Multiple pathogens are known or postulated to cause or contribute to calf diarrhea development. Other factors including both the environment and management practices influence disease severity or outcomes. The multifactorial nature of calf diarrhea makes this disease hard to control effectively in modern cow-calf operations. The purpose of this review is to... -
Expression and lytic efficacy assessment of the Staphylococcus aureus phage SA4 lysin gene
Anil Kumar Mishra*, Mayank Rawat, Konasagara Nagaleekar Viswas, Abhishek, Sujeet Kumar, Manjunatha Reddy 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 1호 6 37-43 (7 pages)
Treatment of bovine mastitis caused by Staphylococcus (S.) aureus is becoming very difficult due to the emergence of multidrug-resistant strains. Hence, the search for novel therapeutic alternatives has become of great importance. Consequently, bacteriophages and their endolysins have been identified as potential therapeutic alternatives to antibiotic therapy against S. aureus. In the present study, the gene encoding lysin (LysSA4) in S. aureus phage SA4 was cloned and the nucleotide sequence... -
Molecular characterization of two Bangladeshi infectious bursal disease virus isolates using the hypervariable sequence of VP2 as a genetic marker
Md. Taohidul Islam*, Thanh Hoa Le, Md. Mostafizur Rahman, Md. Alimul Islam 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 4호 10 405-412 (8 pages)
Two Bangladeshi infectious bursal disease virus (IBDV) isolates collected in 2007, termed GB1 and GB3, were subjected to comparative sequencing and phylogenetic analyses. Sequence analysis of a 474-bp hypervariable region in the VP2 gene revealed that among four major amino acid substitutions observed in the strains, two were unique to GB1 and GB3 (Ser217Leu and Ala270Thr) while one substitution was only found in GB1 (Asn299Ser). Among IBDVs from Bangladesh including GB1 and GB3, the rate of... -
Improved assessment of frozen/thawed mouse spermatozoa using fluorescence microscopy
Ann-Kathrin Diercks, Heinrich F. B?rgers, Anna Schwab, Johannes Schenkel* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 3호 14 315-322 (8 pages)
Genetically modified (GM) animals are unique mutants with an enormous scientific potential. Cryopreservation of pre-implantation embryos or spermatozoa is a common approach for protecting these lines from being lost or to store them in a repository. A mutant line can be taken out of a breeding nucleus only if sufficient numbers of samples with an appropriate level of quality are cryopreserved. The quality of different donors within the same mouse line might be heterogeneous and the... -
A modified method for inducing periodontitis in dogs using a silk-wire twisted ligature
Se Eun Kim, Eui Ri Lee, Yesran Lee, Manbok Jeong, Young Woo Park, Jae Sang Ahn, Jeong Taek Ahn, Kangmoon Seo* 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 11 193-197 (5 pages)
This study was designed to assess the effectiveness of a modified silk ligature twisted with wire for inducing advanced periodontitis. Periodontitis was induced in five premolars and one molar of 20 healthy dogs over a 60-day period. The dogs were divided into four groups according to the ligature- inducing materials used: soft moistened food only, wire ligature (WL), silk ligature (SL) and twisted ligature with silk and wire (SWL). Periodontal indices were recorded, and dental radiographs were... -
Sequence variations of the bovine prion protein gene (PRNP) in native Korean Hanwoo cattle
Sangho Choi, Hee-Jong Woo*, Jeongmin Lee* 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 2호 3 127-137 (11 pages)
Bovine spongiform encephalopathy (BSE) is one of the fatal neurodegenerative diseases known as transmissible spongiform encephalopathies (TSEs) caused by infectious prion proteins. Genetic variations correlated with susceptibility or resistance to TSE in humans and sheep have not been reported for bovine strains including those from Holstein, Jersey, and Japanese Black cattle. Here, we investigated bovine prion protein gene (PRNP) variations in Hanwoo cattle [Bos (B.) taurus coreanae], a native... -
Establishment and characterization of an infectious cDNA clone of a classical swine fever virus LOM strain
Gil-Soon Park, Seong-In Lim, Seung-Ho Hong, Jae-Young Song* 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 12 81-91 (11 pages)
Classical swine fever virus (CSFV) causes a highly contagious disease among swine that has an important economic impact worldwide. CSFV strain LOM is an attenuated virus of low virulent strain of Miyagi isolated from Japan in 1956. Eight DNA fragments representing the genome of the CSFV strain LOM were obtained by RT-PCR. These were used to determine the complete nucleotide sequence and construct a full-length cDNA clone which was called Flc-LOM. Sequence analysis of the recombinant clone... -
Comparison of four diagnostic methods for detecting rabies viruses circulating in Korea
Dong-Kun Yang*, Eun-Kyung Shin, Yoon-I Oh, Kyung-Woo Lee, Chung-San Lee, Seo-Young Kim, Jeong-A Lee, Jae-Young Song 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 7 43-48 (6 pages)
It is essential to rapidly and precisely diagnose rabies. In this study, we evaluated four diagnostic methods, indirect fluorescent antibody test (FAT), virus isolation (VI), reverse transcriptase polymerase chain reaction (RT-PCR), and rapid immunodiagnostic assay (RIDA), to detect rabies in animal brain homogenates. Out of the 110 animal brain samples tested, 20 (18.2%) were positive for rabies according to the FAT. Compared to the FAT, the sensitivities of VI, RT-PCR, and RIDA were 100, 100,... -
Genotypic characterization of Staphylococcus aureus isolated from bovines, humans, and food in Indonesia
Siti Isrina Oktavia Salasia*, Syarifudin Tato, Ngalijan Sugiyono, Dwi Ariyanti, Feny Prabawati 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2011, 제 12권 제 4호 8 353-361 (9 pages)
The present study determined the genetic relationships between 41 Staphyloccocus (S.) aureus isolates from bovines, humans, and food using a single enzyme amplified fragment length polymorphism (AFLP) technique. We evaluated the prevalence of staphylococcal enterotoxin (SE) genes and other virulence gene determinants by PCR. The identification of S. aureus was based on culturing and biochemical tests, and by amplifying a specific section of the 23S rRNA gene. PCR amplification of the SE genes... -
spa typing and enterotoxin gene profile of Staphylococcus aureus isolated from bovine raw milk in Korea
Sun Young Hwang, Young Kyung Park, Hye Cheong Koo, Yong Ho Park 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 6 125-131 (7 pages)
Staphylococcus aureus is a major etiological pathogen of bovine mastitis, which triggers significant economic losses in dairy herds worldwide. In this study, S. aureus strains isolated from the milk of cows suffering from mastitis in Korea were investigated by spa typing and staphylococcal enterotoxin (SE) gene profiling. Forty-four S. aureus strains were isolated from 26 farms in five provinces. All isolates grouped into five clusters and two singletons based on 14 spa types. Cluster 1 and 2... -
Involvement of the Fas and Fas ligand in testicular germ cell apoptosis by zearalenone in rat
Youngheun Jee, Eun-Mi Noh, Eun-Sang Cho, Hwa-Young Son 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 2호 4 115-119 (5 pages)
Zearalenone (ZEA), a nonsteroidal estrogenic mycotoxin, is known to cause testicular toxicity in animals. In the present study, the effects of ZEA on spermatogenesis and possible mechanisms involved in germ cell injury were examined in rats. Ten-week-old Sprague-Dawley rats were treated with 5 mg/kg i.p. of ZEA and euthanized 3, 6, 12, 24 or 48 h after treatment. Histopathologically, spermatogonia and spermatocytes were found to be affected selectively. They were TUNEL-positive and found to be... -
Antimutagenic and anticarcinogenic effect of methanol extracts of Petasites japonicus Maxim leaves
Hwan-Goo Kang, Sang-Hee Jeong*, †, Joon-Hyoung Cho 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 1호 8 51-58 (8 pages)
The methanol extract from the leaves of Petasites japonicus Maxim (PJ) was studied for its (anti-)mutagenic effect with the SOS chromotest and reverse mutation assay. The (anti-)carcinogenic effects were evaluated by the cytotoxicity on human cancer line cells and by the function and the expression of gap junctions in rat liver epithelial cell. PJ extracts significantly decreased spontaneous β-galactosidase activity and β-galactosidase activity induced by a mutagen, ICR, in Salmonella (S.)...
