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MRI Findings in a Rare Case of Myxofibrosarcoma in the Anterior Mediastinum
Mi Jin Kim,Se Ri Kang,Ji Young Rho 대한영상의학회 2022 대한영상의학회지 Vol.83 No.6
Myxofibrosarcoma is one of the most common soft tissue sarcomas in elderly patients. It often occurs in the extremities, trunk, and retroperitoneum. However, it is rarely observed in the mediastinum, and only a few cases have been reported in the literature. Herein, we present the imaging findings, with an emphasis on the MRI results, of a surgically confirmed anterior mediastinal myxofibrosarcoma in a 66-year-old male.
Bis (β-amino-alkyl-oxo) oxalate 유도체의 납 중독 해독에 관한 연구
崔선아,劉美禮,盧榮洙,鄭聖顯,丁世榮 한국환경독성학회 1989 환경독성보건학회지 Vol.4 No.2
The effects of his (β-amino-ethyl-oxo) oxalate and bis (α-amino-methyl-oxo) oxalate on the toxicity of lead acetate in rast were examined. Rats were given intraperitoneally at the dose of lead acetate 45 mg/kg. The exposure of lead acetate showed the 70% decrease of ALAD (δ-amino levulinic acid dehydratase) activity in red blood cell. In vivo 122 mg/kg administration of bis (β-amino-ethyl-oxo) oxalate and bis (α-amino-methyl-oxo) oxalate showed the 50% increase of ALAD activity, whereas 149 mg/kg administeration of Ca-EDTA had no effect. In vitro, the same results were obtained. Both compounds had hemolytic activity at concentrations higher than that required for showing the 50% ALAD activity increase in vivo.
One year's study of dynamic and evolution of types I and II PRRSV in a swine farm
Kim, Hye Kwon,Park, Seong Jun,Rho, Se Mi,Han, Jae Yeon,Nguyen, Van Giap,Park, Bong Kyun Elsevier 2011 Veterinary microbiology Vol.150 No.3
<P><B>Abstract</B></P><P>This study was to investigate dynamic and evolution of PRRSV in a seed-stock farm by monitoring PRRSV status from 11 June 2009 to 4 August 2010. For laboratory test, around 18–24 umbilical cords from farrowed sows and 5–95 sera from nursery and grow/finish pigs were submitted around every 2 weeks interval during the study. The submitted samples were tested for PRRSV using IDEXX PRRS 2XR ELISA kit, RT-nested PCR. The PRRSV-positive samples were further sequences based on ORF5 and analyzed using MEGA 3.1 program and Beast 1.5.4 package. The surveyed farm was first infected with type II PRRSV but it was infected newly with type I PRRSV of unknown origin, showing rapid substitution to type I PRRSV as a dominant strain in 2 weeks. The type I PRRSV was first detected from umbilical cord of a farrowed sow in 12 January 2010, and secondly from nursery pigs in 26 January 2010. Although sudden increase of mean S/P ratio was found in grow/finish pigs around 2 months earlier than first type I PRRSV detection, no type I PRRSV viremia was found. Thirty three ORF5 full sequences from 14 type II to 19 type I PRRSVs were obtained chronologically in this farm and the genetic characteristics and evolution rates of those sequences were analyzed. The substitution rates (/site/day) of two types were 4.03×10<SUP>−5</SUP> (type I), 3.09×10<SUP>−5</SUP> (type II), respectively, which was more frequent than previous reports. The calculated divergence time of type I PRRSV was consistent with the time when the sudden elevation of serum IgG in grow/finish barn was first observed. This study provided fundamental data for type I PRRSV dynamic in a previously type II PRRSV-infected farm and suggested grow/finisher barn could be a primary site for PRRSV introduction.</P>
Keum, Hyun Ok,Kim, Hye Kwon,Rho, Se Mi,Moon, Hyoung Joon,Park, Seong Jun,Park, Bong Kyun The Korean Society of Veterinary Science 2010 大韓獸醫學會誌 Vol.50 No.2
To determine the prevalence of Escherichia (E.) coli O157 : H7 from pigs after the Hazard Analysis and Critical Control Point (HACCP) system has been applied to Korean swine farm since 2006, 291 fecal samples were tested between May and December in 2008. Four E. coli O157:non-H7 (1.4%) were isolated from 4 different non-HACCP-accredited farms and they didn't have virulent genes which can cause illness for human. Also, Clostridium (C.) perfringens, Salmonella spp. and E. coli enterotoxins were tested using multiplex PCR. The positive rate for these pathogens of non-HACCP-accredited farms was higher than that of HACCP-accredited farms, and especially in case of C. perfringens, E. coli enterotoxins LT and STa, it was statistically significant (p < 0.05). Thus, the early implementation of the HACCP program is expected to greatly contribute to the safety of livestock products as well as food hygiene.
류하나(Ha-Na Lyu),박미현(Mi-Hyun Park),홍성길(Seong-Gil Hong),이대영(Dae-Young Lee),한경민(Kyung-Min Han),유종수(Jong-Su Yoo),김세영(Se-Young Kim),노영덕(Young-Duk Rho),백남인(Nam-In Baek) 한국식품과학회 2007 한국식품과학회지 Vol.39 No.6
식품 소재의 국내산 약용식물인 163가지 천연물에서 메탄올로 추출한 시료를 이용하여 in vitro에서 10, 100, 500, 1000 μg/mL의 4가지 농도에서 대식세포 면역 활성을 측정하였다. 그 결과, 42개의 시료에서 면역증진반응을 보였으며, 그 중 20개의 시료는 음성대조군에 대하여 20% 이상 면역 활성을 증진시키는 것으로 측정되었다. 이중 2가지 농도에서 면역증진반응을 보이는 시료는 총 19개, 3가지 농도에서 면역증진효과를 나타내는 시료는 총 3개[골파(Allium schoenoprasmum), 두릅(Aralia elata), 매생이(Capsosiphon fulvescens)]였으며, 특히 마(Dioscorea batatas)는 각 농도에서 활성을 나타내었을 뿐 아니라 양성대조군과 비슷하거나 높은 활성을 나타내어 면역증진활성이 매우 우수한 것으로 나타났다. In this study, the 163 edible plants that are permitted as foods by the Korea Food and Drug Administration, were extracted in methanol. Following extration, their macrophage immunostimulating effects (MIE) were examined using a macrophage from BALB/c mice at four different concentrations of plant extract, such as 10 μg/mL, 100 μg/mL, 500 μg/ mL, and 1,000 μg/mL, in vitro. Forty-two samples significantly showed MIEs. Among them, 20 samples had increased MIEs at higher than 10%, as compared to the negative control group. Nineteen samples had increased MIEs at two of the plant extract concentrations, and 3 samples [Allium schoenoprasmum (chive), Aralia elata (fatsia), Capsosiphon fulvescens (seaweed fulvescens)] had increased MIEs at three of the concentration conditions. In particular, Dioscorea batatas (yam) showed MIEs at all concentrations, as well as slightly higher MIEs as compared to the positive control group. Therefore, Dioscorea batatas was evaluated to be an excellent MIE.
육두구 (Myristica fragrans Houtt)로부터 Phenylpropanoid의 분리
송명종 ( Myoung Chong Song ),안은미 ( Eun Mi Ahn ),방면호 ( Myun Ho Bang ),김세영 ( Se Young Kim ),노영덕 ( Yeong Deok Rho ),권병목 ( Byoung Mog Kwon ),이현선 ( Hyun Sun Lee ),백남인 ( Nam In Baek ) 한국응용생명화학회 2004 Applied Biological Chemistry (Appl Biol Chem) Vol.47 No.3
Kim, Hye Kwon,Moon, Hyoung Joon,Park, Seong Jun,Rho, Se Mi,Han, Jae Yeon,Nguyen, Van Giap,Park, Bong Kyun The Korean Society of Veterinary Science 2011 大韓獸醫學會誌 Vol.51 No.2
Swine diseases could be caused by unrecognized or minor pathogens. In this study, two unknown cytopathogenic agents were isolated from swine, through cell culture. In order to identify these two cytopathogenic agent (designated CP129 and #2045-7), a particle associated nucleic acids PCR (PANPCR) from previous paper was used with simple modification. The cloning procedure was more specified in this study by adding cell control system. According to the modified PAN-PCR, two and four agentsspecific DNA sequences were obtained from CP129 and #2045-7, respectively, and they were identified as Mycoplasma (M.) hyorhinis and Mammalian orthoreovirus by nucleotide BLAST. Since M. hyorhinis (CP129) was filterable and non-visible by microscope, this unusual virus-like nature of M. hyorhinis (CP129) was discussed. Especially, the reovirus (#2045-7) was a serotype 3 and a triple reassortant among three serotypes of reoviruses. It was grouped with recently reported reoviruses from disease cases (swine, human and feline), based on the genetic analysis of L1 and S1 partial sequences. In conclusion, two unknown cytopathogenic agents were successfully identified using modified PAN-PCR with cell control system and they were characterized in this study.
Identification of Reassortant Pandemic H1N1 Influenza Virus in Korean Pigs
( Jae Yeon Han ),( Sung Jun Park ),( Hye Kwon Kim ),( Se Mi Rho ),( Giap Van Nguyen ),( Dae Sub Song ),( Bo Kyu Kang ),( Hyung Jun Moon ),( Min Joo Yeom ),( Bong Kyun Park ) 한국미생물 · 생명공학회 2012 Journal of microbiology and biotechnology Vol.22 No.5
Since the 2009 pandemic human H1N1 influenza A virus emerged in April 2009, novel reassortant strains have been identified throughout the world. This paper describes the detection and isolation of reassortant strains associated with human pandemic influenza H1N1 and swine influenza H1N2 (SIV) viruses in swine populations in South Korea. Two influenza H1N2 reassortants were detected, and subtyped by PCR. The strains were isolated using Madin- Darby canine kidney (MDCK) cells, and genetically characterized by phylogenetic analysis for genetic diversity. They consisted of human, avian, and swine virus genes that were originated from the 2009 pandemic H1N1 virus and a neuraminidase (NA) gene from H1N2 SIV previously isolated in North America. This identification of reassortment events in swine farms raises concern that reassortant strains may continuously circulate within swine populations, calling for the further study and surveillance of pandemic H1N1 among swine.