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Kim, Kyeong Seok,Yang, Hun Yong,Song, Hosup,Kang, Ye Rim,Kwon, JiHoon,An, JiHye,Son, Ji Yeon,Kwack, Seung Jun,Kim, Young-Mi,Bae, Ok-Nam,Ahn, Mee-Young,Lee, Jaewon,Yoon, Sungpil,Lee, Byung μ,Kim, Hyung TAYLOR & FRANCIS 2017 Journal of Toxicology and Environmental Health Vol.80 No.9
<P>Acute kidney injury (AKI) is associated with increased mortality rate in patients but clinically available biomarkers for disease detection are currently not available. Recently, a new biomarker, selenium-binding protein 1 (SBP1), was identified for detection of nephrotoxicity using proteomic analysis. The aim of this study was to assess the sensitivity of urinary SBP1 levels as an early detection of AKI using animal models such as cisplatin or ischemia/reperfusion (I/R). Sprague-Dawley rats were injected with cisplatin (6 mg/kg, once i.p.) and sacrificed at 1, 3, or 5 days after treatment. Ischemia was achieved by bilaterally occluding both kidneys with a microvascular clamp for 45 min and verified visually by a change in tissue color. After post-reperfusion, urine samples were collected at 9, 24, and 48 hr intervals. Urinary excretion of protein-based biomarkers was measured by Western blot analysis. In cisplatin-treated rats, mild histopathologic alterations were noted at day 1 which became severe at day 3. Blood urea nitrogen (BUN) and serum creatinine (SCr) levels were significantly increased at day 3. Levels of urinary excretion of SBP1, neutrophil gelatinase-associated lipocalin (NGAL), and a tissue inhibitor of metalloproteinase-1 (TIMP-1) were markedly elevated at day 3 and 5 following drug treatment. In the vehicle-treated I/R group, serum levels of BUN and SCr and AST activity were significantly increased compared to sham. Urinary excretion of SBP1 and NGAL rose markedly following I/R. The urinary levels of SBP1, NGAL, TIMP-1, and KIM-1 proteins excreted by AKI patients and normal subjects were compared. Among these proteins, a marked rise in SBP1 was observed in urine of patients with AKI compared to normal subjects. Based upon receiver-operator curves (ROC), SBP1 displayed a higher area under the curve (AUC) scores than levels of SCr, BUN, total protein, and glucose. In particular, SBP1 protein was readily detected in small amounts of urine without purification. Data thus indicate that urinary excretion of SBP1 may be useful as a reliable biomarker for early diagnosis of AKI in patients.</P>
Marine Geoid around Korean Peninsula
Kim, Hyung-Ki(김형기),Choi, Byung-Ho(최병호),Yun, Hong-Sic(윤홍식),Kim, Kyeong-Ok(김경옥) 한국해안해양공학회 2008 한국해안해양공학회 논문집 Vol.20 No.6
한반도와 동해를 포함하는 지역적인 지오이드를 세밀화하는 과정을 설명하고, 계산 결과를 제시하였다. 지오이드의 높이와 해수면의 높이의 비교와 최종적인 세밀화의 결과를 해석하고 제시하였다. 세밀화된 지역적인 해양 지오이드는 이전에 보고된 것과 비교하여 더 나은 해상도를 가지며 해저수심과의 상관성을 갖는다. 산정된 지오이드의 일반적인 패턴은 기존의 연구와 잘 일치하며, 동해에서의 세밀화된 해양 지오이드와 수심과의 상관관계는 (1) 117?E~142.5?E/24?N~52?N의 영역에서는 0.44, (2) 127?E~142.5?E/32?N~50?N의 영역에서는 0.47이다. Procedures involved in the refinement of the regional geoid for the area encompassing the Korean peninsula and the East Sea are described, and the computational results are provided. A comparison between the geoid height data, the mean sea surface height and the final product of the refinement work is provided and analyzed. The regional marine geoid thus refined seems to have a better resolution, in terms of its correlation with the bathymetry, and shows the bottom features in a more detailed manner when compared with previously used procedures. The general pattern of the computed geoid profile matches reasonably well with the existing studies, where the correlations between the refined regional marine geoid and the bathymetry are (1) 0.44 for the area 117~142.5?E/24~52?N and (2) 0.47 for the area 127~142.5?E/32~50?N in the East Sea respectively.
Kim, Jong Min,Park, Chang Hyeon,Park, Seon Kyeong,Seung, Tae Wan,Kang, Jin Yong,Ha, Jeong Su,Lee, Du Sang,Lee, Uk,Kim, Dae-Ok,Heo, Ho Jin American Chemical Society, Books and Journals Divi 2017 Journal of agricultural and food chemistry Vol.65 No.13
<P>The ameliorating effects of ginsenoside Re (G Re) on high fat diet (HFD)-induced insulin resistance in CS7BL/6 mice were investigated to assess its physiological function. In the results of behavioral tests, G Re improved cognitive dysfunction in diabetic mice using Y-maze, passive avoidance, and Morris water maze tests. G Re also significantly recovered hyperglycemia and fasting blood glucose level. In the results of serum analysis, G Re decreased triglyceride (TG), total cholesterol (TCHQ), low-density lipoprotein cholesterol (LDLC), glutamic-oxaloacetic transaminase (GOT), and glutamic-pyruvic transaminase (GPT) and :increased the ratio of high-density lipoprotein cholesterol (HDLC). G Re regulated acetylcholine (ACh), acetylcholinesterase (AChE), malondialdehyde (MDA), superoxide dismutase (SOD), and oxidized glutathione (GSH)/total GSH by regtilating the c-Jun N-terminal protein kinase (JNK) pathway. These findings suggest that G Re could be used to improve HFD-induced insulin resistance condition by ameliorating hyperglycemia via protecting the cholinergic and antioxidant systems in the mouse brains.</P>
Evaluation in Korean Soybean Cultivars of Resistance to Soybean Mosaic Virus
Kim, Yul-Ho,Kim, Ok-Sun,Moon, Jung-Kyeong,Roh, Jae-Hwan,Im, Dae-Joon,Hur, Il-Bong,Lee, Sang-Chul The Korean Society of Crop Science 2001 Korean journal of crop science Vol.46 No.1
Soybean mosaic virus (SMV) resistance of Korean recommended soybeans was evaluated naturally and by mechanical inoculation in Suwon. Based on the differential reaction of forty-four soybean genotypes tested to nine different SMV strains, soybeans were classified into twenty-four groups. Myeongjunamulkong and Ilpumgeom-jeongkong showed a high degree of resistance to nine SMV strains, having no symptom. The other cultivars produced various reactions according to inoculation of each SMV strain: symptomless, mosaic or systemic necrosis. Only five cultivars such as Kwangankong, Eunhakong, Tawonkong, Namhaekong, Sobaegnamulkong were totally susceptible to every strain. There was variation in disease incidence. Soybeans, having the highest levels of resistance to G5H and G7H in the greenhouse, showed the lowest levels of SMV incidence in the field of Suwon. Myeong-junamulkong, Ilpumgeomjeongkong, Soyangkong, Pungsannamulkong, Sodamkong, Jangmikong, Geomjeong-kong2, Pureunkong, Sinpaldalkong2, Duyoukong, and Geumgangkong were fairly resistant to SMV. And SMV incidence of Taekwangkong, Saealkong and Baegunkong was over 45% with symptom of bud necrosis. And soybeans, highly resistant to SMV in the field and the greenhouse, were mainly derived from Jangyeobkong and Hwang-keumkong resistant to G1-G7.
Report of 39 unrecorded bacterial species in Korea belonging to Gammaproteobacteria
Kim, Min-Kyeong,Park, Jisun,Yun, Bo-Ram,Bae, Jin-Woo,Cha, Chang-Jun,Cho, Jang-Cheon,Im, Wan-Taek,Jahng, Kwang Yeop,Jeon, Che Ok,Joh, Kiseong,Kim, Wonyong,Lee, Soon Dong,Seong, Chi Nam,Yi, Hana,Kim, Se The National Institute of Biological Resources 2018 Journal of species research Vol.7 No.1
During a series of extensive surveys of prokaryotic species diversity in Korea, bacterial strains belonging to Gammaproteobacteria were isolated from various sources of aquatic and terrestrial environments. A total of 39 isolates were obtained, which represented 39 unrecorded species in Korea belonging to 20 genera in 12 families. Enterobacteriaceae was the largest family, as eight species were assigned, which was followed by Moraxellaceae (6 species) and Pseudomonadaceae (5 species). At the genus level, Marinobacter (6 species), and Pseudomonas (5 species) were the main genera, and at least two species were obtained for Acinetobacter (3 species), Psychrobacter (3 species), Shewanella (2 species), Dickeya (2 species), Salinivibrio (2 species), Vibrio (2 species) and Rhodanobacter(2 species). The detailed description of each unrecorded species is provided.
Lysobacter arenosi sp. nov. and Lysobacter solisilvae sp. nov. isolated from soil
Kim Kyeong Ryeol,Kim Kyung Hyun,Khan Shehzad Abid,Kim Hyung Min,Han Dong Min,Jeon Che Ok 한국미생물학회 2021 The journal of microbiology Vol.59 No.8
Two Gram-stain negative, yellow-pigmented, and mesophilic bacteria, designated strains R7T and R19T, were isolated from sandy and forest soil, South Korea, respectively. Both strains were non-motile rods showing catalase- and oxidase-positive activities. Both strains were shown to grow at 10–37°C and pH 6.0–9.0, and in the presence of 0–1.5% (w/v) NaCl. Strain R7T contained iso-C14:0, iso-C15:0, iso-C16:0, and summed feature 9 (comprising C16:0 10-methyl and/or iso-C17:1 ω9c), whereas strain R19T contained iso-C11:0 3-OH, C16:1 ω7c alcohol, iso-C11:0, iso-C15:0, iso-C16:0, and summed feature 9 (comprising C16:0 10-methyl and/or iso-C17:1 ω9c) as major cellular fatty acids (> 5%). Both strains contained ubiquinone- 8 as the sole isoprenoid quinone and phosphatidylglycerol, phosphatidylethanolamine, and an unidentified phospholipid as the major polar lipids. The DNA G + C contents of strains R7T and R19T calculated from their genomes were 66.9 mol% and 68.9 mol%, respectively. Strains R7T and R19T were most closely related to Lysobacter panacisoli C8-1T and Lysobacter niabensis GH34-4T with 98.7% and 97.8% 16S rRNA sequence similarities, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains R7T and R19T formed distinct phylogenetic lineages within the genus Lysobacter. Based on phenotypic, chemotaxonomic, and molecular features, strains R7T and R19T represent novel species of the genus Lysobacter, for which the names Lysobacter arenosi sp. nov. and Lysobacter solisilvae sp. nov. are proposed. The type strains of L. arenosi and L. solisilvae are R7T (= KACC 21663T = JCM 34257T) and R19T (= KACC 21767T = JCM 34258T), respectively.
Creating a High-Definition Animation of Tsunami Propagation
Kim, Kyeong-Ok(김경옥),Yuk, Jin-Hee(육진희),Min, Byung-Il(민병일),Choi, Byung-Ho(최병호) 한국해안해양공학회 2011 한국해안해양공학회 논문집 Vol.23 No.5
대양 및 분지를 횡단하는 지진해일 전파 시뮬레이션은 컴퓨터 집약적인 작업이다. 이 보고는 지진해일의 해수면 높이와 유속장에 대한 방대한 출력을 다루는 효과적이고 상세화된 과학가시화 기법을 보여준다. 이 고화질의 과학가시화 기법은 1960년과 2010년 칠레지진해일의 시뮬레이션과 1983년 동해중부지진해일의 결과를 제시하는데 사용되었다. 고화질 그래픽 애니메이션은 해양과 연안의 지형에 따른 지진해일의 자세한 전파양상을 보여줄 수 있는 도구이다. Simulation of the trans-oceanic or trans-basin propagation of a tsunami is a computer-intensive task. This study demonstrates an effective and detailed visualization technique to deal with the vast amount of surface-elevation and velocity-field output. This high-definition visualization technique is used to present simulations of the 1960 and 2010 Chilean earthquake tsunamis and the 1983 Central East (Japan) Sea earthquake tsunami. This tsunami-visualization method using high-definition graphic animation is an appropriate tool to show detailed tsunami-propagation behavior over an ocean or coastal sea, as exemplified by the Pacific Ocean and East (Japan) Sea tsunami events.
Kim, Myeong Ok,Lee, Jeoung Sook,Cho, Kyeong Je,Lee, Bong Hee,Lee, Byung Ju,Choi, Wan Sung 경상대학교 유전공학연구소 1992 遺傳工學硏究所報 Vol.11 No.-
hypothalamic GnRH neurons are originated from olfactory placode of embryo.They enter brain regions during embryonic development and are loosely distributed within hypothalamic area and other brain regions. In the adult animals, however, GnRH is yet not known to be locally expressed in the olfactory cortex. Therefore, present study initially aims to acertain whether GnRH mRNA in the rat brain with in situ hybridization histochemistry. Interestingly, GnRH mRNAs are highly concentrated in the olfactory cortex of brain. To further elucidate the nature of GnRH transcripts in the olfactory system involving olfactory cortex and bulbs, we employed Northern hybridization and PCR analysis. GnRH mRNA in the rat olfactory cortex and bulb is similar in size to that in hypothalamus. The size of PCR products of olfactory cortex and bulbs are same with that of hypothalamus. Therefore, we suggest that GnRH in the olfactory system is expressed through a similar machinery with hypothalamic GnRH.