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Un Sang Yeo,Do Yeon Kwak,Jeom Sig Lee,Woon Goo Ha,Jae Ki Jang,No Bong Park,Sang Jong Lim,Jung Hoon Kang,Ho Yeong Kim,Sae Jun Yang 한국육종학회 2003 한국육종학회지 Vol.35 No.2
This study was carried out to develop a prom ising japonica rice variety resistant to brown planthopper(Bph) through marker-assisted selection(MAS) and backcross breeding methods. 'Milyang 64' which is known as resistant japonica variety to Bph used as a
Lee, Nam Kyung,Kim, Suk,Kim, Gwang Ha,Kim, Dong Uk,Seo, Hyung Il,Kim, Tae Un,Kang, Dae Hwan,Jang, Ho Jin WJG Press 2012 WORLD JOURNAL OF GASTROENTEROLOGY Vol.18 No.31
<P>Diffusion-weighted magnetic resonance imaging (DWI) is a well established method for the evaluation of intracranial diseases, such as acute stroke. DWI for extracranial application is more difficult due to physiological motion artifacts and the heterogeneous composition of the organs. However, thanks to the newer technical development of DWI, DWI has become increasingly used over the past few years in extracranial organs including the abdomen and pelvis. Most previous studies of DWI have been limited to the evaluation of diffuse parenchymal abnormalities and focal lesions in abdominal organs, whereas there are few studies about DWI for the evaluation of the biliopancreatic tract. Although further studies are needed to determine its performance in evaluating bile duct, gallbladder and pancreas diseases, DWI has potential in the assessment of the functional information on the biliopancreatic tract concerning the status of tissue cellularity, because increased cellularity is associated with impeded diffusion, as indicated by a reduction in the apparent diffusion coefficient. The detection of malignant lesions and their differentiation from benign tumor-like lesions in the biliopancreatic tract could be improved using DWI in conjunction with findings obtained with conventional magnetic resonance cholagiopancreatography. Additionally, DWI can be useful for the assessment of the biliopancreatic tract in patients with renal impairment because contrast-enhanced computed tomography or magnetic resonance scans should be avoided in these patients.</P>
Lee, Junwye,Koo, Jonghyun,Hwang, Si Un,Min, Sunmin,Ahn, Sang Jung,Roh, Yonghan,Park, Sung Ha Elsevier 2012 Current Applied Physics Vol.12 No.4
<P><B>Abstract</B></P><P>We report the structural and functional stabilities of artificially synthesized DNA ultra-thin films. Fully covered DNA ultra-thin films on a silica substrate were fabricated by the silica-assisted growth method and those samples were then incubated in various chemicals and physical conditions. The DNA ultra-thin films showed high maintainability under those harsh conditions and these results would aid to facilitate the use of artificial DNA ultra-thin films in advanced research areas such as biophotonics and bioelectronics.</P> <P><B>Highlights</B></P><P>► The structural and functional stabilities of DNA structures are discussed. ► DNA structures were fabricated by the silica-assisted growth method. ► DNA samples were then incubated in various chemicals and physical conditions. ► DNA ultra-thin films showed high maintainability under those harsh conditions. ► Our results aid to facilitate the use of DNA structures in advanced research area.</P>
Transport Current Distribution of a SmBCO Coated Conductor
Lee, Jae-Young,Yoo, Jae-Un,Lee, Sang-Moo,Jung, Ye-Hyun,Youm, Do-Jun,Kim, Ho-Sup,Ha, Hong-Soo,Oh, Sang-Soo The Korean Society of Superconductivity and Cryoge 2007 한국초전도저온공학회논문지 Vol.9 No.4
The transport current distribution across the tape width of a SmBCO coated conductor was investigated. The current distribution was estimated by applying an inversion process to the field distribution measured in the vicinity of the tape by using a scanning Hall probe method. The obtained result is well consistent with one predicted by the Bean model, however, at the edges the current are not constant and do not generally plateau, on the contrary.
Lee, Chang-Hoon,Lee, Ji-Hye,Sung, Chan-Gyoung,Moon, Seong-Dae,Kang, Sin-Kil,Lee, Jong-Hyeon,Yim, Un Hyuk,Shim, Won Joon,Ha, Sung Yong The Malacological Society of Korea 2014 The Korean Journal of Malacology Vol.30 No.4
The bioaccumulation of 16 United States Environmental Protection Agency (USEPA) priority polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs in the Manila clam, Ruditapes philippinarum exposed to sediments artificially contaminated by Iranian Heavy Crude Oil was measured and the biota-sediment accumulation factor (BSAF) was estimated through laboratory experiments. The proportion of 16 PAHs accumulated in the tissue of R. philippinarum was only from 3 to 7% of total PAHs. Among 16 PAHs, the concentration of naphthalene was highest in the tissue. Alkylated PAHs were highly accumulated more than 93% of total PAHs. The C3 dibenzothiophene was most highly accumulated. The relative composition of alkylated naphthalenes in the tissue of R. philippinarum was lower than in the sediments. In contrast, those of alkylated compounds of fluorenes, phenanthrenes, dibenzothiophenes were higher in the tissue than the sediments. The BSAF for sum of 16 PAHs was 0.11 to 0.13 g carbon/g lipid and that for alkylated PAHs was 0.05 to 0.06 g carbon/g lipid. Naphthalene showed the highest BSAF value. Alkylated PAHs with the same parent compound, BSAF tended to increase with the number of alkylated branch increased, except for alkylated chrysenes. BSAF of total PAHs lies between that of field-based values, and are also similar to those of other persistent organic pollutants (PCBs, DDTs, HCHs). This study provides the BSAF values of individual alkylated PAHs accumulated in R. philippinarum for the first time and will be used as a basis for further understanding the bioaccumulation of organic contaminants in the marine benthic organisms.
Lee, Soo Han,Kang, Hyun Jeong,Shin, Dong-Hun,Cho, Duk-Yeon,Song, Jin Mi,Lee, Han Cheol,Kim, Gwang Ha,Song, Geun Am,Sol, Mee Young,Kim, Jee Yeon,Choi, Kyung Un,Lee, Chang Hun,Huh, Gi Young,Park, Do You Gutenberg 2009 HISTOLOGY AND HISTOPATHOLOGY Vol.24 No.7
<P>The biological characteristics of intestinal-type early gastric cancers (ICs) differ based on mucin phenotypes. Beta-catenin delocalization is a predictive marker of aggressive biological behavior (submucosal invasion and lymph node metastasis) of ICs. The presumptive causative genetic alterations leading to delocalization of beta-catenin in ICs are still controversial, and there are only a few reports regarding beta-catenin expression in gastric cancer based on mucin phenotypes. Therefore, in the current study, the expression and mechanisms of delocalization of beta-catenin were elucidated on the basis of mucin phenotypes in 109 cases of ICs. There was increased cytoplasmic and nuclear beta-catenin expression (delocalization) in ICs with a predominant intestinal mucin phenotype (ICIP; 46.3% [25/54 cases]) compared to ICs with a predominant gastric mucin phenotype (ICGP; 20% [11/55 cases]). There were no beta-catenin or APC mutations in ICs. APC promoter hypermethylation was present in 49 of 105 (46.7%) cases of ICs. There was a significant relationship between APC promoter hypermethylation and beta-catenin delocalization in ICs, especially in ICIPs. There was no relationship between beta-catenin delocalization and APC gene loss of heterozygosity in ICs. In conclusion, we showed that beta-catenin delocalization was more evident in ICIPs, and APC promoter hypermethylation might play a role in delocalization of beta-catenin, especially in ICIPs.</P>
Ha, Ji-Hyoung,Lee, Dong-Un,Auh, Joong-Hyuck,Ha, Sang-Do The Korean Society for Applied Biological Chemistr 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.2
Effects of sanitizers and UV light irradiation on foodborne pathogen, Bacillus cereus F4810/72 found on oyster mushroom were investigated at 10, 30, 50, and 70% ethanol, 100, 500, 1000, 1500, and, 2000 ppm hydrogen peroxide ($H_2O_2$), 20, 60, 100, 150, and 200 ppm sodium hypochlorite (NaClO), and UV exposure doses at 6, 96, 216, 360, and $504mWs/cm^2$ were evaluated. The combined sanitizers/UV treatments resulted in greater reductions in bacterial counts than either treatment alone. The synergy values of combined ethanol/UV, $H_2O_2$/UV and NaClO/UV treatment for B. cereus were 0.14-1.59, 0.05-0.88, and 0.09-0.81 $log_{10}$ CFU/g, respectively. These findings suggest that a significant synergistic benefit results from combined sanitizer/UV treatment in eliminating food-borne pathogens on oyster mushroom.
Lee, Hyunah,Ha, Min Jung,Shahbaz, Hafiz Muhammad,Kim, Jeong Un,Jang, Holim,Park, Jiyong Elsevier 2018 Journal of food engineering Vol.238 No.-
<P><B>Abstract</B></P> <P>The traditional process of manufacturing red bean powder (RBP) using high temperature and extensive cooking causes quality changes, such as an off-flavor, destruction of colors, and a reduced nutritional value of the product. In this study, RBP was manufactured using a novel process of wet grinding, high hydrostatic pressure (HHP), and freeze-drying. The impact of HHP treatment in this innovative manufacturing process on the microbial count, antioxidant activity, anti-nutritional factors, and physicochemical properties of RBP was evaluated by comparison with the conventional method of thermal treatment. Microbial populations in final RBP were reduced to 1.83, 1.55, and 1.05 log CFU/g when treated using HHP 400, 500, and 600 MPa, respectively. HHP treatment improved the nutritional profile and reduced the effects of anti-nutritional factors in RBP. The most effective reduction of trypsin inhibitor activity and phytic acid content was achieved using HHP at 600 MPa for 5 min. Total phenols, flavonoids, proanthocyanidins and total antioxidant capacity in HHP treated RBP were more effectively preserved than in thermally treated RBP. Preparation of RBP using a novel manufacturing process involving HHP treatment rather than a thermal treatment improved physico-chemical and functional properties and enhanced microbiological safety.</P> <P><B>Highlights for review</B></P> <P> <UL> <LI> Red bean powder was manufactured using a novel process. </LI> <LI> Process included wet grinding, high hydrostatic pressure (HHP), and freeze-drying. </LI> <LI> HHP effectively disinfected naturally occurring microorganisms in red bean powder. </LI> <LI> Nutritional and functional properties of red bean powder were effectively preserved. </LI> </UL> </P>
TGFBI remodels adipose metabolism by regulating the Notch-1 signaling pathway
Lee Seul Gi,Chae Jongbeom,Woo Seon Min,Seo Seung Un,Kim Ha-Jeong,Kim Sang-Yeob,Schlaepfer David D.,Kim In-San,Park Hee-Sae,Kwon Taeg Kyu,Nam Ju-Ock 생화학분자생물학회 2023 Experimental and molecular medicine Vol.55 No.-
Extracellular matrix proteins are associated with metabolically healthy adipose tissue and regulate inflammation, fibrosis, angiogenesis, and subsequent metabolic deterioration. In this study, we demonstrated that transforming growth factor-beta (TGFBI), an extracellular matrix (ECM) component, plays an important role in adipose metabolism and browning during high-fat diet-induced obesity. TGFBI KO mice were resistant to adipose tissue hypertrophy, liver steatosis, and insulin resistance. Furthermore, adipose tissue from TGFBI KO mice contained a large population of CD11b+ and CD206+ M2 macrophages, which possibly control adipokine secretion through paracrine mechanisms. Mechanistically, we showed that inhibiting TGFBI-stimulated release of adipsin by Notch-1-dependent signaling resulted in adipocyte browning. TGFBI was physiologically bound to Notch-1 and stimulated its activation in adipocytes. Our findings revealed a novel protective effect of TGFBI deficiency in obesity that is realized via the activation of the Notch-1 signaling pathway.