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[PE-0079] Multi-trait GWAS of grain shape study with advanced breed lines of Korean rice
Muhyun Kim(Muhyun Kim),Tae-Ho Ham(Tae-Ho Ham),ByeongYong Jeong(ByeongYong Jeong),MiYoung Park(MiYoung Park),Yeong Shin(Yeong Shin),Yeonju Kim(Yeonju Kim),Min Young Song(Min Young Song),Joohyun Lee(Joo 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
Jinkwon Kim,Junsik Mun,Youngdo Kim,Bongju Kim,Jeong Rae Kim,Lingfei Wang,Miyoung Kim,Changyoung Kim,Jason W. A. Robinson,Yoshiteru Maeno,Tae Won Noh 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.2
Ruddlesden-Popper (RP) phase oxides (An+1BnO3n+1, n = 1, 2, ...) have been spotlighted with versatile physical properties such as high-temperature superconductivity, colossal magnetoresistance. These emergent phenomena provide a platform for novel oxide-based electronic devices including spintronics application. However, high-quality RP-phase thin film growth has been disturbed by extended structural defects, such as out-of-phase boundaries (OPBs). OPB is a translational boundary between neighboring unit cells, shifted in a specific crystallographic direction. For instance, if RP-phase thin films grown on ABO₃ perovskite substrates, the structural mismatch between film and substrates induces a crystallographic shift in the c-axis direction, thus OPBs form at the film-substrate interface. Since OPB formation hampers the physical properties of RP-phase thin films, the suppression of the structural defects is highly required to carry out the high-performance RP-phase based functional devices. In this study, we suppressed OPB suppression in RP-phase oxide thin films by atomic-scale interface engineering. As model systems, the unconventional superconductor Sr₂RuO₄ (bulk Tc ~ 1.5 K) and La2-xSrxCuO₄ (bulk Tc ~ 39 K) thin films were employed. Despite the structural similarities between films and substrates, Sr2RuO4 and La2-xSrxCuO₄ films exhibited huge OPB formations. By controlling the atomic-scale interface engineering, the OPBs were significantly suppressed in the film structure. Notably, these OPB-free Sr₂RuO₄ and La2-xSrxCuO₄ thin films exhibited highly enhanced superconductivity than the film with huge OPB formation. Our study suggests a comprehensive method to suppress OPB formation in RP thin films, enabling superconducting spintronics devices based on the unconventional superconductivity.
Detection of ASXL1 Codon 646 Variant Using Amplicon-Based Next-Generation Sequencing
Miyoung Kim,Nan Young Kim,Sangkyoon Hong,Jiwon Lee,Yonggeun Cho,Han-Sung Kim,Hee Jung Kang,Young Kyung Lee 대한임상검사정도관리협회 2022 Journal of Laboratory Medicine And Quality Assuran Vol.44 No.2
Background: The ASXL1 codon 646 variant is the most common ASXL1 variant that negatively impacts the prognoses of patients with myeloid malignancies, particularly those with myelodysplastic syndromes and acute myeloid leukemia. However, it has been suggested that this mutation is not somatic but rather an artifact of next-generation sequencing (NGS) owing to its location in an 8 bp guanine mononucleotide repeat. In this study, we evaluated the performance of amplicon-based NGS in discriminating the ASXL1 codon 646 variant. Methods: Amplicon-based NGS was performed on the Myeloid DNA Reference Standard HD829 in varying reference material dilution ratios using the TruSight Myeloid panel and a MiSeqDx system. Results: The expected and measured variant allele frequencies (VAFs) of the ASXL1 codon 646 mutation in the reference material were 40.00% and 18.65%, respectively. The measured VAFs in reference materials serially diluted at 1:1, 1:2, 1:4, and 1:8 were 9.09%, 5.82%, 1.92%, and 2.87%, respectively (y=0.4391x+0.8642; r 2=0.9846). Most of the other variants showed VAFs comparable to expected VAFs. Conclusions: The measured allele frequencies of the ASXL1 codon 646 variant in the serially diluted reference materials were approximately half their expected values, suggesting difficulties in the correct detection of the variant using amplicon-based NGS.
ZnO nanostructures with controlled morphologies on a glass substrate
Kim, Yong-Jin,Jeon, Jong-Myeong,Choi, Jun Hee,Park, Sung Soo,Kim, Sun Il,Baik, Chan Wook,Kim, Miyoung,Kim, Jong Min,Yi, Gyu-Chul IOP Pub 2010 Nanotechnology Vol.21 No.26
<P>We report morphology-controlled selective growth of ZnO nanostructures on glass substrates by using catalyst-free metal-organic chemical vapor deposition. For the morphology-controlled selective growth, a microheating method using a series of microheaters was developed, which provided well-controlled local heating based on the microheater geometry and spatial arrangement. ZnO nanostructure morphology depended on the local growth temperature, so various nanostructure morphologies were obtained selectively at specific positions on glass substrates by using local microheating. The monolithic integration of nanostructures with different morphologies will have great potential for applications in multifunctional devices. </P>
Relationship between White Spot Symptom and Physiological Status of Two Penaeid Shrimps
Kim, Su Kyoung,Kim, Myung Seok,Park, Myoung Ae,Kim, Su mi,Jang, In Kwon,Kim, Seok Ryel,Cho, Miyoung Korean Society of Environmental Biology 2017 환경생물 : 환경생물학회지 Vol.35 No.4
Shrimps infected with WSSV(White Spot Syndrome Virus) generally exhibit white spots in their inner space of carapaces as an acute clinical sign. In an effort to identify the correlation between this acute clinical sign and the condition, the index factors (RNA/DNA concentration and ratio, trypsin activity) were analyzed. A total 580 farmed Fenneropenaeus chinensis and 130 Lithopenaeus vannamei were collected from western and southern fifteen outdoor ponds in Korea. The status of the white spot pathology was divided into four stages (stage 0, stage I, stage II, and stage III), in accordance with the clinical signs as to the size and area of white spots. A significant decrease in RNA concentration and RNA/DNA ratio for multi-infected fleshy prawn (WSSV and vibrio sp.) occurred during the stage III (the whole carapace is covered with a white spot). In particular, RNA/DNA ratio was significantly lower as $1.47{\pm}0.04$ than other groups. A similar trend was also found in the single infection (WSSV), but the decrease was less than the multi-infection. In the species comparison, both species were vulnerable to the multi-infection, but L. vannamei was more sensitive than F. chinensis(ANOVA, p<0.05): A significant decrease in RNA concentration and RNA/DNA ratio was first found in stage II for the former species, while it was found in stage III for the latter species. Trypsin activity was also showed a similar tendency with nucleic acid variation. Multi-infected shrimp showed drastically decrease of trypsin activity. According to the results, clinical signs of the white spot under carapace have an only physiological effect on shrimp if they covered entirely with white spots.
Kim, Hyera,Cha, Seung-Ick,Shin, Kyung-Min,Lim, Jae-Kwang,Oh, Serim,Kim, Min Jung,Lee, Yong Dae,Kim, Miyoung,Lee, Jaehee,Kim, Chang-Ho The Korean Academy of Tuberculosis and Respiratory 2014 Tuberculosis and Respiratory Diseases Vol.77 No.3
Background: Bronchial anthracofibrosis (BAF), which is associated with exposure to biomass smoke in inefficiently ventilated indoor areas, can take the form of obstructive lung disease. Patients with BAF can mimic or present with an exacerbation of chronic obstructive pulmonary disease (COPD). The purpose of the current study was to investigate the prevalence of BAF in Korean patients with COPD exacerbation as well as to examine the clinical features of these patients in order to determine its clinical relevance. Methods: A total of 206 patients with COPD exacerbation were divided into BAF and non-BAF groups, according to computed tomography findings. We compared both clinical and radiologic variables between the two groups. Results: Patients with BAF (51 [25%]) were older, with a preponderance of nonsmoking women; moreover, they showed a more frequent association with exposure to wood smoke compared to those without BAF. However, no differences in the severity of illness and clinical course between the two groups were observed. Patients in the BAF group had less severe airflow obstruction, but more common and severe pulmonary hypertension signs than those in the non-BAF group. Conclusion: Compared with non-BAF COPD, BAF may be associated with milder airflow limitation and more frequent signs of pulmonary hypertension with a more severe grade in patients presenting with COPD exacerbation.
Unconventional anomalous Hall effect from antiferromagnetic domain walls of Nd2Ir2O7 thin films
Kim, Woo Jin,Gruenewald, John H.,Oh, Taekoo,Cheon, Sangmo,Kim, Bongju,Korneta, Oleksandr B.,Cho, Hwanbeom,Lee, Daesu,Kim, Yoonkoo,Kim, Miyoung,Park, Je-Geun,Yang, Bohm-Jung,Seo, Ambrose,Noh, Tae Won American Physical Society 2018 Physical Review B Vol.98 No.12
Kim, Miyoung,Kim, Hanna,Ryu, Jeonghyun,Jo, Suzy,Lee, Guemsan,Ryu, Mi Heon,Kim, Hyungwoo,Cho, Su In Medknow PublicationsMedia Pvt Ltd 2014 Pharmacognosy magazine Vol.10 No.38
<P><B>Background:</B></P><P>The slough shed of <I>Cryptotympana atrata</I> Fabricius is widely used to treat skin diseases in China, Japan, and Korea.</P><P><B>Objective:</B></P><P>To investigate the anti-inflammatory effects of <I>C. atrata</I> on contact dermatitis.</P><P><B>Materials and Methods:</B></P><P>We investigated the effects of <I>C. atrata</I> methanol extract (MECA) on ear swelling, histophathological changes and cytokine production in 1-fluoro-2,4-dinitrofluorobenzene (DNFB)-induced contact dermatitis (CD) mice.</P><P><B>Results:</B></P><P>Topical application of MECA effectively inhibited enlargement of ear swelling (30 and 100 μ/ear, <I>P</I> < 0.05; 300 μg/ear, <I>P</I> < 0.01). MECA treatment also inhibited hyperplasia, spongiosis (100 and 300 μg/ear, <I>P</I> < 0.001), and immune cell infiltration (30 μg/ear, <I>P</I> < 0.05; 100 and 300 μg/ear, <I>P</I> < 0.001) induced by DNFB. In addition, treatment with MECA suppressed the increase in the levels of TNF-α (<I>P</I> < 0.05), IFN-g (3, 100 μg/ear, <I>P</I> < 0.05; 300 μg/ear, <I>P</I> < 0.01), and IL-6 (100 μg/ear, <I>P</I> < 0.05; 300 μg/ear, <I>P</I> < 0.01) production.</P><P><B>Conclusion:</B></P><P>These data suggest that MECA has the potential for use in the treatment of inflammatory skin diseases, including CD. Moreover, the results presented herein indicate that anti-inflammatory actions of MECA are mediated by decreasing production of TNF-α, IFN-γ, and IL-6 in inflamed tissues.</P>