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218. An artificial neural tactile sensing system

Author

Chun, Sungwoo, Kim, Jong-Seok, Yoo, Yongsang, Choi, Youngin, Jung, Sung Jun, Jang, Dongpyo, Lee, Gwangyeob, Song, Kang-Il, Nam, Kum Seok, Youn, Inchan, Son, Donghee, Pang, Changhyun, Jeong, Yong, Jung, Hachul, Kim, Young-Jin, Choi, Byong-Deok, Kim, Jaehun, Kim, Sung-Phil, Park, Wanjun, and Park, Seongjun

Published
2021
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220. The genetics of blood pressure regulation and its target organs from association studies in 342,415 individuals.

Author

Ehret, Georg B, Ferreira, Teresa, Chasman, Daniel I, Jackson, Anne U, Schmidt, Ellen M, Johnson, Toby, Thorleifsson, Gudmar, Luan, Jian'an, Donnelly, Lousie A, Kanoni, Stavroula, Petersen, Ann-Kristin, Pihur, Vasyl, Strawbridge, Rona J, Shungin, Dmitry, Hughes, Maria F, Meirelles, Osorio, Kaakinen, Marika, Bouatia-Naji, Nabila, Kristiansson, Kati, Shah, Sonia, Kleber, Marcus E, Guo, Xiuqing, Lyytikäinen, Leo-Pekka, Fava, Cristiano, Eriksson, Niclas, Nolte, Ilja M, Magnusson, Patrik K, Salfati, Elias L, Rallidis, Loukianos S, Theusch, Elizabeth, Smith, Andrew JP, Folkersen, Lasse, Witkowska, Kate, Pers, Tune H, Joehanes, Roby, Kim, Stuart K, Lataniotis, Lazaros, Jansen, Rick, Johnson, Andrew D, Warren, Helen, Kim, Young Jin, Zhao, Wei, Wu, Ying, Tayo, Bamidele O, Bochud, Murielle, CHARGE-EchoGen consortium, CHARGE-HF consortium, Wellcome Trust Case Control Consortium, Absher, Devin, Adair, Linda S, Amin, Najaf, Arking, Dan E, Axelsson, Tomas, Baldassarre, Damiano, Balkau, Beverley, Bandinelli, Stefania, Barnes, Michael R, Barroso, Inês, Bevan, Stephen, Bis, Joshua C, Bjornsdottir, Gyda, Boehnke, Michael, Boerwinkle, Eric, Bonnycastle, Lori L, Boomsma, Dorret I, Bornstein, Stefan R, Brown, Morris J, Burnier, Michel, Cabrera, Claudia P, Chambers, John C, Chang, I-Shou, Cheng, Ching-Yu, Chines, Peter S, Chung, Ren-Hua, Collins, Francis S, Connell, John M, Döring, Angela, Dallongeville, Jean, Danesh, John, de Faire, Ulf, Delgado, Graciela, Dominiczak, Anna F, Doney, Alex SF, Drenos, Fotios, Edkins, Sarah, Eicher, John D, Elosua, Roberto, Enroth, Stefan, Erdmann, Jeanette, Eriksson, Per, Esko, Tonu, Evangelou, Evangelos, Evans, Alun, Fall, Tove, Farrall, Martin, Felix, Janine F, Ferrières, Jean, Ferrucci, Luigi, Fornage, Myriam, and Forrester, Terrence

Subjects
CHARGE-EchoGen consortium, CHARGE-HF consortium, Wellcome Trust Case Control Consortium, Cells, Cultured, Humans, Hypertension, Microarray Analysis, Blood Pressure, Polymorphism, Single Nucleotide, African Continental Ancestry Group, Asian Continental Ancestry Group, Genome-Wide Association Study, Cells, Cultured, Polymorphism, Single Nucleotide, Developmental Biology, Biological Sciences, Medical and Health Sciences
Abstract

To dissect the genetic architecture of blood pressure and assess effects on target organ damage, we analyzed 128,272 SNPs from targeted and genome-wide arrays in 201,529 individuals of European ancestry, and genotypes from an additional 140,886 individuals were used for validation. We identified 66 blood pressure-associated loci, of which 17 were new; 15 harbored multiple distinct association signals. The 66 index SNPs were enriched for cis-regulatory elements, particularly in vascular endothelial cells, consistent with a primary role in blood pressure control through modulation of vascular tone across multiple tissues. The 66 index SNPs combined in a risk score showed comparable effects in 64,421 individuals of non-European descent. The 66-SNP blood pressure risk score was significantly associated with target organ damage in multiple tissues but with minor effects in the kidney. Our findings expand current knowledge of blood pressure-related pathways and highlight tissues beyond the classical renal system in blood pressure regulation.

Published
2016

221. Dynamic Motifs of Strategies in Prisoner's Dilemma Games

Author

Kim, Young Jin, Roh, Myungkyoon, Jeong, Seon-Young, and Son, Seung-Woo

Subjects
Physics - Physics and Society
Abstract

We investigate the win-lose relations between strategies of iterated prisoner's dilemma games by using a directed network concept to display the replicator dynamics results. In the giant strongly-connected component of the win/lose network, we find win-lose circulations similar to rock-paper-scissors and analyze the fixed point and its stability. Applying the network motif concept, we introduce dynamic motifs, which describe the population dynamics relations among the three strategies. Through exact enumeration, we find 22 dynamic motifs and display their phase portraits. Visualization using directed networks and motif analysis is a useful method to make complex dynamic behavior simple in order to understand it more intuitively. Dynamic motifs can be building blocks for dynamic behavior among strategies when they are applied to other types of games., Comment: 16 pages, 3 tables, and 5 figures

Published
2014
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230. Genome-wide association studies in East Asians identify new loci for waist-hip ratio and waist circumference.

Author

Wen, Wanqing, Kato, Norihiro, Hwang, Joo-Yeon, Guo, Xingyi, Tabara, Yasuharu, Li, Huaixing, Dorajoo, Rajkumar, Yang, Xiaobo, Tsai, Fuu-Jen, Li, Shengxu, Wu, Ying, Wu, Tangchun, Kim, Soriul, Guo, Xiuqing, Liang, Jun, Shungin, Dmitry, Adair, Linda S, Akiyama, Koichi, Allison, Matthew, Cai, Qiuyin, Chang, Li-Ching, Chen, Chien-Hsiun, Chen, Yuan-Tsong, Cho, Yoon Shin, Choi, Bo Youl, Gao, Yutang, Go, Min Jin, Gu, Dongfeng, Han, Bok-Ghee, He, Meian, Hixson, James E, Hu, Yanling, Huang, Tao, Isono, Masato, Jung, Keum Ji, Kang, Daehee, Kim, Young Jin, Kita, Yoshikuni, Lee, Juyoung, Lee, Nanette R, Lee, Jeannette, Wang, Yiqin, Liu, Jian-Jun, Long, Jirong, Moon, Sanghoon, Nakamura, Yasuyuki, Nakatochi, Masahiro, Ohnaka, Keizo, Rao, Dabeeru, Shi, Jiajun, Sull, Jae Woong, Tan, Aihua, Ueshima, Hirotsugu, Wu, Chen, Xiang, Yong-Bing, Yamamoto, Ken, Yao, Jie, Ye, Xingwang, Yokota, Mitsuhiro, Zhang, Xiaomin, Zheng, Yan, Qi, Lu, Rotter, Jerome I, Jee, Sun Ha, Lin, Dongxin, Mohlke, Karen L, He, Jiang, Mo, Zengnan, Wu, Jer-Yuarn, Tai, E Shyong, Lin, Xu, Miki, Tetsuro, Kim, Bong-Jo, Takeuchi, Fumihiko, Zheng, Wei, and Shu, Xiao-Ou

Subjects
Humans, Obesity, Genetic Predisposition to Disease, Waist-Hip Ratio, Sex Factors, Quantitative Trait, Heritable, Polymorphism, Single Nucleotide, Quantitative Trait Loci, Asian Continental Ancestry Group, Asia, Female, Male, Waist Circumference, Genome-Wide Association Study, Quantitative Trait, Heritable, Polymorphism, Single Nucleotide, Clinical Research, Genetics, 2.1 Biological and endogenous factors, Cardiovascular, Biochemistry and Cell Biology, Other Physical Sciences
Abstract

Sixty genetic loci associated with abdominal obesity, measured by waist circumference (WC) and waist-hip ratio (WHR), have been previously identified, primarily from studies conducted in European-ancestry populations. We conducted a meta-analysis of associations of abdominal obesity with approximately 2.5 million single nucleotide polymorphisms (SNPs) among 53,052 (for WC) and 48,312 (for WHR) individuals of Asian descent, and replicated 33 selected SNPs among 3,762 to 17,110 additional individuals. We identified four novel loci near the EFEMP1, ADAMTSL3 , CNPY2, and GNAS genes that were associated with WC after adjustment for body mass index (BMI); two loci near the NID2 and HLA-DRB5 genes associated with WHR after adjustment for BMI, and three loci near the CEP120, TSC22D2, and SLC22A2 genes associated with WC without adjustment for BMI. Functional enrichment analyses revealed enrichment of corticotropin-releasing hormone signaling, GNRH signaling, and/or CDK5 signaling pathways for those newly-identified loci. Our study provides additional insight on genetic contribution to abdominal obesity.

Published
2016

231. Mucosal Penetrative Polymeric Micelle Formulations for Insulin Delivery to the Respiratory Tract

Author

Kang,Ji-Hyun, Jeong,Jin-Hyuk, Kwon,Yong-Bin, Kim,Young-Jin, Shin,Dae Hwan, Park,Yun-Sang, Hyun,Soonsil, Kim,Dong-Wook, Park,Chun-Woong, Kang,Ji-Hyun, Jeong,Jin-Hyuk, Kwon,Yong-Bin, Kim,Young-Jin, Shin,Dae Hwan, Park,Yun-Sang, Hyun,Soonsil, Kim,Dong-Wook, and Park,Chun-Woong

Abstract

Ji-Hyun Kang,1,2,&ast; Jin-Hyuk Jeong,1,&ast; Yong-Bin Kwon,1 Young-Jin Kim,1 Dae Hwan Shin,1 Yun-Sang Park,3 Soonsil Hyun,1 Dong-Wook Kim,4 Chun-Woong Park1 1College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea; 2School of Pharmacy, Institute of New Drug Development, and Respiratory Drug Development Research Institute, Jeonbuk National University, Jeonju, Republic of Korea; 3Research & Development Center, P2K Bio, Cheongju, Republic of Korea; 4College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea&ast;These authors contributed equally to this workCorrespondence: Chun-Woong Park, College of Pharmacy, Chungbuk National University, Cheongju, 28160, Republic of Korea, Tel +82-43-261-3330, Fax +82-43-268-2732, Email cwpark@cbnu.ac.kr Dong-Wook Kim, College of Pharmacy, Wonkwang University, Iksan, 54538, Republic of Korea, Tel +82-63-229-7130, Fax +82-63-850-7309, Email pharmengin@gmail.comPurpose: Effective mucosal delivery of drugs continues to pose a significant challenge owing to the formidable barrier presented by the respiratory tract mucus, which efficiently traps and clears foreign particulates. The surface characteristics of micelles dictate their ability to penetrate the respiratory tract mucus. In this study, polymeric micelles loaded with insulin (INS) were modified using mucus-penetrative polymers.Methods: We prepared and compared polyethylene glycol (PEG)-coated micelles with micelles where cell-penetrating peptide (CPP) is conjugated to PEG. Systematic investigations of the physicochemical and aerosolization properties, performance, in vitro release, mucus and cell penetration, lung function, and pharmacokinetics/pharmacodynamics (PK/PD) of polymeric micelles were performed to evaluate their interaction with the respiratory tract.Results: The nano-micelles, with a particle size of < 100 nm, exhibited a sustained-release profile. Interestingly, PEG-coated micelles exhibited higher diffus

Published
2024

232. Network Structures between Strategies in Iterated Prisoners' Dilemma Games

Author

Kim, Young Jin, Roh, Myungkyoon, and Son, Seung-Woo

Subjects
Physics - Physics and Society, Computer Science - Computer Science and Game Theory
Abstract

We use replicator dynamics to study an iterated prisoners' dilemma game with memory. In this study, we investigate the characteristics of all 32 possible strategies with a single-step memory by observing the results when each strategy encounters another one. Based on these results, we define similarity measures between the 32 strategies and perform a network analysis of the relationship between the strategies by constructing a strategies network. Interestingly, we find that a win-lose circulation, like rock-paper-scissors, exists between strategies and that the circulation results from one unusual strategy.

Published
2014
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239. A new strategy for enhancing imputation quality of rare variants from next-generation sequencing data via combining SNP and exome chip data.

Author

Kim, Young Jin, Lee, Juyoung, Kim, Bong-Jo, T2D-Genes Consortium, and Park, Taesung

Subjects
T2D-Genes Consortium, Oligonucleotide Array Sequence Analysis, Genotype, Polymorphism, Single Nucleotide, High-Throughput Nucleotide Sequencing, Exome, Combined approach, Exome chip, Imputation, Rare variant, Polymorphism, Single Nucleotide, Biological Sciences, Information and Computing Sciences, Medical and Health Sciences, Bioinformatics
Abstract

BackgroundRare variants have gathered increasing attention as a possible alternative source of missing heritability. Since next generation sequencing technology is not yet cost-effective for large-scale genomic studies, a widely used alternative approach is imputation. However, the imputation approach may be limited by the low accuracy of the imputed rare variants. To improve imputation accuracy of rare variants, various approaches have been suggested, including increasing the sample size of the reference panel, using sequencing data from study-specific samples (i.e., specific populations), and using local reference panels by genotyping or sequencing a subset of study samples. While these approaches mainly utilize reference panels, imputation accuracy of rare variants can also be increased by using exome chips containing rare variants. The exome chip contains 250 K rare variants selected from the discovered variants of about 12,000 sequenced samples. If exome chip data are available for previously genotyped samples, the combined approach using a genotype panel of merged data, including exome chips and SNP chips, should increase the imputation accuracy of rare variants.ResultsIn this study, we describe a combined imputation which uses both exome chip and SNP chip data simultaneously as a genotype panel. The effectiveness and performance of the combined approach was demonstrated using a reference panel of 848 samples constructed using exome sequencing data from the T2D-GENES consortium and 5,349 sample genotype panels consisting of an exome chip and SNP chip. As a result, the combined approach increased imputation quality up to 11 %, and genomic coverage for rare variants up to 117.7 % (MAF < 1 %), compared to imputation using the SNP chip alone. Also, we investigated the systematic effect of reference panels on imputation quality using five reference panels and three genotype panels. The best performing approach was the combination of the study specific reference panel and the genotype panel of combined data.ConclusionsOur study demonstrates that combined datasets, including SNP chips and exome chips, enhances both the imputation quality and genomic coverage of rare variants.

Published
2015

240. MoS2 Nanosheet-Pd Nanoparticle Composite for Highly Sensitive Room Temperature Detection of Hydrogen.

Author

Kuru, Cihan, Choi, Chulmin, Kargar, Alireza, Choi, Duyoung, Kim, Young Jin, Liu, Chin Hung, Yavuz, Serdar, and Jin, Sungho

Subjects
MoS2 nanosheet, hydrogen sensing, room temperature, solvent exfoliation
Abstract

Highly sensitive hydrogen detection at room temperature can be realized by employing solution-processed MoS2 nanosheet-Pd nanoparticle composite. A MoS2-Pd composite exhibits greater sensing performance than its graphene counterpart, indicating that solvent exfoliated MoS2 holds great promise for inexpensive and scalable fabrication of highly sensitive chemical sensors.

Published
2015

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