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Ethidium Bromide에 의한 Streptomyces bobili(YS-40)의 R-Plasmid 제거
김상달, 도재호 한국미생물생명공학회 산업미생물학회지 7 Pages
한국미생물생명공학회 산업미생물학회지 1982, Vol.10 No.4 289-295 (7 pages)
본 균주의 R-plasmid를 제거시키기 위하여 ethidium bromide, acriflavine, sodium dodecyl sulfate 등의 curing agent를 처리시킨 결과를 요약하면 다음과 같다. Ethidium bromide를 10$mu extrm{g}$/$mell$의 농도로 처리했을 때 98.0% 정도의 R-plasmid를 제거시킬 수 있었다. pH 7.0에서 curing시킴으로서 R-plasmid가 가장 잘 제거되었으며 분균을 24시간동안 배양해서 curing시킴으로서 R-plasmid의 제거율이 가장 높게 나타났다. Ethidium bromide에 의해서 R-plasmid가 제거된 균과 원균을 여러가지 색소생성배지에서 배양시켜... -
송아지 胸線 DNA의 Spermine에 依하여 誘發되는 異例的 吸光度-溫度 樣相에 미치는 Ethidium Bromide의 影響
이찬용, 고동성, Lee. Chan Yong, Ko. Thong Sung 대한화학회 대한화학회지 6 Pages
대한화학회 대한화학회지 1985, Vol.29 No.3 271-276 (6 pages)
이루는 spermine 濃度에서 얻어지는 異例的 吸光度-溫度 樣相(anomalous absorbance-temperature profile)의 trough 領域에 이르는 相變移에 對한 cooperativity, enthalpy, 및 相變移 midpoint를 구하여 그 값들을 Tm 領域의 값들과 比較한 結果 그 두 그룹의 값들은 서로 相異하였으며 前者의 값들이 後者의 값들 보다 ethidium bromide에 對하여 더 銳敏하였다. Ethidium bromide 濃度를 增加시킴에 따라서 그 trough의 깊이가 작아져서 終局的으로 없어졌으나 그와 對照的으로 Tm은 實驗的으로 一定하게 維持되었다. 本 硏究結果를... -
Binding Features of Ethidium Bromide and Their Effects on Nuclease Susceptibility of Calf Thymus DNA in Presence of Spermine
이찬영, 류형원, 고동성, Lee. Chan Yeong, Ryu. Hyeong Won, Go. Dong Seong 대한화학회 Bulletin of the Korean Chemical Society 3 Pages
대한화학회 Bulletin of the Korean Chemical Society 2001, Vol.22 No.1 87-89 (3 pages)
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Ethidium Bromide가 백서악하선세포의 단백합성에 미치는 영향에 관한 연구
이서해, Lee. Su-Hae 대한치과의사협회 大韓齒科醫師協會誌 6 Pages
대한치과의사협회 大韓齒科醫師協會誌 1972, Vol.10 No.10 659-664 (6 pages)
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Porcine intestinal lymphoid tissues synthesize estradiol
Chan Jin Park, Heehyen Kim, Jooyoung Jin, Radwa Barakat, Po-Ching Lin, Jeong Moon Choi, CheMyong Jay Ko 대한수의학회 Journal of Veterinary Science 6 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 1 477-482 (6 pages)
Estradiol (17-estradiol) is synthesized primarily in the gonads of both sexes and regulates the development and function of reproductive organs. Recently, we reported that intestinal lymphocyte homeostasis is regulated by estradiol synthesized de novo in the endothelial cells of the high endothelial venules (HEVs) of mesenteric lymph nodes and Peyer’s patches in mice. This observation prompted us to hypothesize that HEVs of intestinal lymphoid tissues are sites of estradiol synthesis... -
Prevalence, toxin gene profile, antibiotic resistance, and molecular characterization of Clostridium perfringens from diarrheic and non-diarrheic dogs in Korea
Jung-Whan Chon, Kun-Ho Seo, Dongryeoul Bae, Ji-Hee Park, Saeed Khan, Kidon Sung 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 3호 6 368-374 (7 pages)
Clostridium perfringens causes diarrhea and other diseases in animals and humans. We investigated the prevalence, toxin gene profiles, and antibiotic resistance of C. perfringens isolated from diarrheic dogs (DD) and non-diarrheic dogs (ND) in two animal hospitals in Seoul, Korea. Fecal samples were collected from clinically DD (n = 49) and ND (n = 34). C. perfringens was isolated from 31 of 49 DD (63.3%) and 21 of 34 ND dogs (61.8%). All C. perfringens strains were positive for the ... -
Pathogenic and phylogenetic characteristics of non-O157 Shiga toxin-producing Escherichia coli isolates from retail meats in South Korea
June Bong Lee, Dalmuri Han, Hyung Tae Lee, Seon Mi Wi, Jeong Hoon Park, Jung-woo Jo, Young-Jae Cho, Tae-Wook Hahn, Sunjin Lee, B 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 11 251-259 (9 pages)
Herein, we report the pathogenic and phylogenetic characteristics of seven Shiga toxin (Stx)-producing Escherichia coli (STEC) isolates from 434 retail meats collected in Korea during 2006 to 2012. The experimental analyses revealed that all isolates (i) were identified as non-O157 STEC, including O91:H14 (3 isolates), O121:H10 (2 isolates), O91:H21 (1 isolate), and O18:H20 (1 isolate), (ii) carried diverse Stx subtype genes (stx1, stx2c, stx2e, or stx1 + stx2b) whose expression levels varied... -
Rapid visual detection of Mycobacterium avium subsp. paratuberculosis by recombinase polymerase amplification combined with a lateral flow dipstick
Guimin Zhao, Hongmei Wang, Peili Hou, Chengqiang He, Hongbin He 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 2호 10 242-250 (9 pages)
Paratuberculosis (Johne’s disease) is a chronic debilitating disease of domestic and wild ruminants. However, widespread point-of-care testing is infrequent due to the lack of a robust method. The isothermal recombinase polymerase amplification (RPA) technique has applied for rapid diagnosis. Herein, RPA combined with a lateral flow dipstick (LFD) assay was developed to estimate DNA from Mycobacterium avium subsp. paratuberculosis. First, analytical specificity and sensitivity of the RPA-nfo... -
Innate immune response of bovine mammary epithelial cells to Mycoplasma bovis
Satoshi Gondaira, Hidetoshi Higuchi, Hidetomo Iwano, Koji Nishi, Takanori Nebu, Keiichi Nakajima, Hajime Nagahata 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 11 79-87 (9 pages)
Mycoplasma spp. are contagious bacteria, and mycoplasmal mastitis is a serious productivity problem on dairy farms. Bovine mammary epithelial cells (bMECs) have an important role in the elimination of pathogens, but the effect of Mycoplasma bovis on bMECs has not been fully described. To elucidate the immune response against intramammary infection by M. bovis, we undertook microarray analysis to examine and profile mRNA expression in bMECs after stimulation with M. bovis. We also compared the... -
Isolation and characterization of a new porcine epidemic diarrhea virus variant that occurred in Korea in 2014
Dong-Kun Yang, Ha-Hyun Kim, Seung-Heon Lee, Soon-Seek Yoon, Jung-Won Park, In-Soo Cho 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 10 71-78 (8 pages)
Outbreaks of porcine epidemic diarrhea (PED) have resulted in significant economic losses in the swine industry, and another PED outbreak occurred in 2014 in Korea. Isolating and culturing PED virus (PEDV) allow investigations into its pathogenesis and the development of vaccines and diagnostic assays. In this study, we successfully isolated two PEDV isolates (QIAP1401 and QIAP1402) from naturally infected piglets at Jeju-do, Korea. Viral propagation was confirmed in Vero cells based on... -
Comparative proteomic analysis of outer membrane protein 43 (omp43)-deficient Bartonella henselae
Jun-Gu Kang, Hee-Woo Lee, Sungjin Ko, Joon-Seok Chae 대한수의학회 Journal of Veterinary Science 12 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 9 59-70 (12 pages)
Outer membrane proteins (OMPs) of Gram-negative bacteria constitute the first line of defense protecting cells against environmental stresses including chemical, biophysical, and biological attacks. Although the 43-kDa OMP (OMP43) is major porin protein among Bartonella henselae-derived OMPs, its function remains unreported. In this study, OMP43-deficient mutant B. henselae (Δomp43) was generated to investigate OMP43 function. Interestingly, Δomp43 exhibited weaker proliferative ability than... -
Molecular characterization and phylogenetic analysis of pseudorabies virus variants isolated from Guangdong province of southern China during 2013?2014
Jindai Fan, Xiduo Zeng, Guanqun Zhang, Qiwen Wu, Jianqiang Niu, Baoli Sun, Qingmei Xie, Jingyun Ma 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 3호 14 369-375 (7 pages)
Outbreaks of pseudorabies (PR) have occurred in southern China since late 2011, resulting in significant economic impacts on the swine industry. To identify the cause of PR outbreaks, especially among vaccinated pigs, 11 pseudorabies virus (PRV) field strains were isolated from Guangdong province during 2013?2014. Their major viral genes (gE, TK, gI, PK, gD, 11K, and 28K) were analyzed in this study. Insertions or deletions were observed in gD, gE, gI and PK genes compared with other PRV... -
Prevalence of Anaplasma, Bartonella and Borrelia Species in Haemaphysalis longicornis collected from goats in North Korea
Jun-Gu Kang, Sungjin Ko, W. Barney Smith, Heung-Chul Kim, In-Yong Lee, Joon-Seok Chae 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 2호 10 207-216 (10 pages)
North Korea is located on the northern part of the Korean Peninsula in East Asia. While tick-borne pathogens of medical and veterinary importance have been reported from China and South Korea, they have not been reported from North Korea. To screen for zoonotic tick-borne pathogens in North Korea, ticks were collected from domestic goats. A total of 292 (27 nymph, 26 male, 239 female) Haemaphysalis (H.) longicornis were collected and assayed individually for selected tick-borne pathogens. A... -
Molecular cloning, purification and immunogenicity of recombinant Brucella abortus 544 malate dehydrogenase protein
Alisha Wehdnesday Bernardo Reyes, Hannah Leah Tadeja Simborio, Huynh Tan Hop, Lauren Togonon Arayan, Suk Kim 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2016, 제 17권 제 1호 16 119-122 (4 pages)
The Brucella mdh gene was successfully cloned and expressed in E. coli. The purified recombinant malate dehydrogenase protein (rMDH) was reactive to Brucella-positive bovine serum in the early stage, but not reactive in the middle or late stage, and was reactive to Brucella-positive mouse serum in the late stage, but not in the early or middle stage of infection. In addition, rMDH did not react with Brucella-negative bovine or mouse sera. These results suggest that rMDH has the potential for use... -
Genetic characterization of bovine viral diarrhea virus strains in Beijing, China and innate immune responses of peripheral blood mononuclear cells in persistently infected dairy cattle
Xiao Gang Weng, Quan Jiang Song, Qiong Wu, Ming Chao Liu, Meng Ling Wang, Jiu Feng Wang 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 4호 13 491-500 (10 pages)
To acquire epidemiological data on the bovine viral diarrhea virus (BVDV) and identify cattle persistently infected (PI) with this virus, 4,327 samples from Holstein dairy cows were screened over a four-year period in Beijing, China. Eighteen BVD viruses were isolated, 12 from PI cattle. Based on genetic analysis of their 5’-untranslated region (5’-UTR), the 18 isolates were assigned to subgenotype BVDV-1m, 1a, 1d, 1q, and 1b. To investigate the innate immune responses in the peripheral-blood... -
Enhancing effects of serum-rich and cytokine-supplemented culture conditions on developing blastocysts and deriving porcine parthenogenetic embryonic stem cells
Soo-Kyung Jung, Hyun-Jung Kim, Chan-Lan Kim, Joo-Hyeong Lee, Jin-Young You, Eun-Song Lee, Jeong-Mook Lim, Seon Jong Yun, Jae-You 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 9 519-528 (10 pages)
The present study was conducted to develop an effective method for establishment of porcine parthenogenetic embryonic stem cells (ppESCs) from parthenogenetically activated oocyte-derived blastocysts. The addition of 10% fetal bovine serum (FBS) to the medium on the 3rd day of oocyte culturing improved the development of blastocysts, attachment of inner cell masses (ICMs) onto feeder cells, and formation of primitive ppESC colonies. ICM attachment was further enhanced by basic fibroblast growth... -
M gene analysis of canine coronavirus strains detected in Korea
Seok-Young Jeoung, So-Yun Ann, Hyun-Tae Kim, Doo Kim, 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 5 495-502 (8 pages)
The purpose of this study was to investigate the genetic features of canine coronavirus (CCV) strains detected in Korea. M gene sequences obtained for isolates from 22 dogs with enteritis over a 5-year period were evaluated. Sequence comparison revealed that the 22 Korean CCV strains had an 87.2 to 100% nucleotide homology. Comparing to the typical reference CCV strains (type II), the nucleotide sequence of Korean strains had homology ranged from 86.3% to 98.3% (89.1% to 99.2% for the amino acid... -
Stanniocalcin-1 protects bovine intestinal epithelial cells from oxidative stress-induced damage
Li-ming Wu, Rui Guo, Lin Hui, Yong-gang Ye, Jing-mei Xiang, Chun-yun Wan, Miao Zou, Rui Ma, Xiao-zhuan Sun, Shi-jin Yang, Ding-z 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 4호 3 475-483 (9 pages)
for 48 h to over-express STC-1. Acridine orange/ ethidium bromide (AO/EB) double staining and trypan blue exclusion assays were then performed to measure cell viability and apoptosis of the cells, respectively. The expression of STC-1 and apoptosis-related proteins in the cells was monitored by real-time PCR and Western blotting. The results indicated that both STC-1 mRNA and protein expression levels positively correlated with the duration of H2O2 treatment. H2O2 damaged the bovine IECs in a... -
Antibiotic resistance and molecular characterization of ophthalmic Staphylococcus pseudintermedius isolates from dogs
Min-Hee Kang, Min-Joo Chae, Jang-Won Yoon, Seung-Gon Kim, So-Young Lee, Jong-Hyun Yoo, Hee-Myung Park* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 3호 9 409-415 (7 pages)
The prevalence, virulence potential, and antibiotic resistance of ophthalmic Staphylococcus pseudintermedius (SP) isolated from dogs were examined. Sixty-seven Staphylococcus species were isolated from ophthalmic samples and surveyed for species-specific sequences in the Staphylococcus intermedius group (SIG) nuclease gene (SInuc), exfoliative toxin gene for SIG (siet), and antibiotic resistance genes (blaZ and mecA). PCR-restriction fragment length polymorphism analysis of the pta gene was also... -
Isolation, in vitro propagation, genetic analysis, and immunogenic characterization of an Ehrlichia canis strain from southeastern Brazil
Rosiane Nascimento Alves*, Susana Elisa Rieck, Carlos Ueira-Vieira, Marcelo Bahia Labruna, Marcelo Emílio Beletti 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 2호 10 241-248 (8 pages)
Amplification of the 16S rRNA gene from a blood sample obtained from a dog in southeastern Brazil was used to confirm a naturally acquired Ehrlichia (E.) canis infection. Following isolation and culturing of the new bacterial strain called Uberlândia, partial sequences of the dsb and p28 genes were obtained. The dsb partial sequence of the novel strain was 100% similar to dsb gene sequences of E. canis obtained from different geographic areas around the world. Conversely, the p28... -
Development of a multiplex PCR assay to detect Edwardsiella tarda, Streptococcus parauberis, and Streptococcus iniae in olive flounder (Paralichthys olivaceus)
Seong Bin Park, Kyoung Kwon, In Seok Cha, Ho Bin Jang, Seong Won Nho, Fernand F. Fagutao, Young Kyu Kim, Jong Earn Yu, Tae Sung 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 1호 19 163-166 (4 pages)
A multiplex PCR protocol was established to simultaneously detect major bacterial pathogens in olive flounder (Paralichthys olivaceus) including Edwardsiella (E.) tarda, Streptococcus (S.) parauberis, and S. iniae. The PCR assay was able to detect 0.01 ng of E. tarda, 0.1 ng of S. parauberis, and 1 ng of S. iniae genomic DNA. Furthermore, this technique was found to have high specificity when tested with related bacterial species. This method represents a cheaper, faster, and reliable... -
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)
Calf diarrhea is a commonly reported disease in young animals, and still a major cause of productivity and economic loss to cattle producers worldwide. In the report 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... -
Genetic diversity of Korean Bacillus anthracis isolates from soil evaluated with a single nucleotide repeat analysis
Sang Hoon Kim, Kyoung Hwa Jung, Se Kye Kim, Seong-Joo Kim, Ji-Cheon Kim, Soo Young Cho, Jin Choul Chai, Young Seek Lee, Yun Ki K 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 4호 12 457-465 (9 pages)
Bacillus (B.) anthracis, the etiological agent of anthrax, is one of the most genetically monomorphic bacteria species in the world. Due to the very limited genetic diversity of this species, classification of isolates of this bacterium requires methods with high discriminatory power. Single nucleotide repeat (SNR) analysis is a type of variable-number tandem repeat assay that evaluates regions with very high mutation rates. To subtype a collection of 21 isolates that were obtained during a...
