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https://www.readbyqxmd.com/read/29903797/association-between-sleep-duration-and-stroke-prevalence-in-korean-adults-a-cross-sectional-study
#1
Min-Young Kim, Seunghoon Lee, You Ho Myong, Yoon Jae Lee, Me-Riong Kim, Joon-Shik Shin, Jinho Lee, In-Hyuk Ha
OBJECTIVES: Although sleep, chronic disease and its related mortality are extensively studied areas, the association between stroke and sleep duration is relatively unknown. The aim of this study was to investigate the association between long and short sleep duration and stroke prevalence. DESIGN: A cross-sectional survey study. SETTING AND PARTICIPANTS: Adult surveyees (aged ≥19 years) who answered items relating to sleep duration and stroke in the 2010-2014 Korean National Health and Nutrition Surveys (n=17 601)...
June 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29894499/impact-of-acupuncture-treatment-on-the-lumbar-surgery-rate-for-low-back-pain-in-korea-a-nationwide-matched-retrospective-cohort-study
#2
Wonil Koh, Kyungwon Kang, Yoon Jae Lee, Me-Riong Kim, Joon-Shik Shin, Jinho Lee, Jun-Hwan Lee, Kyung-Min Shin, In-Hyuk Ha
INTRODUCTION: Low back pain (LBP) is a globally prevalent disorder with high social significance. Invasive surgical procedures are increasingly being used to treat LBP despite a lack of solid evidence supporting their long-term benefits. This nationwide retrospective cohort study investigated the association between acupuncture treatment and lumbar surgery rate in patients with LBP. METHODS: Using the National Health Insurance Service Sample Cohort Database for 2002-2013, we identified newly diagnosed LBP patients in Korea between 2004 and 2010 and divided them into an acupuncture group and control group according to whether or not they received acupuncture...
2018: PloS One
https://www.readbyqxmd.com/read/29874063/target-specificity-of-cas9-nuclease-via-dna-rearrangement-regulated-by-the-rec2-domain
#3
Keewon Sung, Jinho Park, Younggyu Kim, Nam Ki Lee, Seong Keun Kim
Understanding the underlying principles for the target-specific nuclease activity of CRISPR/Cas9 is a prerequisite to minimize its off-target DNA cleavage for genome engineering applications. Here, we show that the non-catalytic REC2 domain of Cas9 nuclease plays a crucial role in off-target discrimination. Using single-molecule fluorescence methods, we investigate conformational dynamics of the non-target strand (NTS) of DNA interacting with Cas9 and find that REC2 regulates the NTS rearrangement for cleavage reaction with the help of positively-charged residues on its surface...
June 6, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29871845/discovery-and-evaluation-of-3-5-disubstituted-indole-derivatives-as-pim-kinase-inhibitors
#4
Kunal N More, Victor S Hong, Ahyeon Lee, Jongsung Park, Shin Kim, Jinho Lee
Pim kinases are promising therapeutic targets for the treatment of hematological cancers. A potent Pim kinase inhibitor 7f, derived from meridianin C, was further optimized by the replacement of 2-aminopyrimidine with substituted benzene. The optimization of the C-3 and C-5 positions of indole yielded compound 43 with improved cellular potency and high selectivity against a panel of 14 different kinases.
May 29, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29849490/the-anti-inflammatory-effects-of-shinbaro3-is-mediated-by-downregulation-of-the-tlr4-signalling-pathway-in-lps-stimulated-raw-264-7-macrophages
#5
Hwa-Jin Chung, Wonil Koh, Won Kyung Kim, Joon-Shik Shin, Jinho Lee, Sang Kook Lee, In-Hyuk Ha
Shinbaro3, a formulation derived from the hydrolysed roots of Harpagophytum procumbens var. sublobatum (Engl.) Stapf, has been clinically used in the pharamacopuncture treatment of arthritis in Korea. In the present study, Shinbaro3 inhibited NO generation in LPS-induced RAW 264.7 cells in a dose-dependent manner. Shinbaro3 also downregulated the mRNA and protein expression of inflammatory mediators in a dose-dependent manner. Three mechanisms explaining the effects of Shinbaro3 in RAW 264.7 cells were identified as follows: (1) inhibition of the extracellular signal-regulated kinase 1 and 2 (ERK1/2), stress-activated protein kinase (SAPK)/c-Jun N-terminal protein kinase (JNK), and p38 mitogen-activated protein kinase (MAPK) pathways; (2) suppression of I κ B kinase- α / β (IKK- α / β ) phosphorylation and nuclear factor-kappa B (NF- κ B) subunits in the NF- κ B pathway, which are involved in MyD88-dependent signalling; and (3) downregulation of IFN- β mRNA expression via inhibition of interferon regulatory factor 3 (IRF3) and Janus-activated kinase 1 (JAK1)/signal transducer and activator of transcription 1 (STAT1) phosphorylation, which is involved in TRIF-dependent signalling...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29796523/microfluidic-technologies-for-circulating-tumor-cell-isolation
#6
REVIEW
Hyungseok Cho, Jinho Kim, Hanjung Song, Keun Yong Sohn, MinHyon Jeon, Ki-Ho Han
Metastasis is the main cause of tumor-related death, and the dispersal of tumor cells through the circulatory system is a critical step in the metastatic process. Early detection and analysis of circulating tumor cells (CTCs) is therefore important for early diagnosis, prognosis, and effective treatment of cancer, enabling favorable clinical outcomes in cancer patients. Accurate and reliable methods for isolating and detecting CTCs are necessary to obtain this clinical information. Over the past two decades, microfluidic technologies have demonstrated great potential for isolating and detecting CTCs from blood...
May 24, 2018: Analyst
https://www.readbyqxmd.com/read/29795330/k6-linked-polyubiquitylation-of-fadd-by-chip-prevents-death-inducing-signaling-complex-formation-suppressing-cell-death
#7
Jinho Seo, Eun-Woo Lee, Jihye Shin, Daehyeon Seong, Young Woo Nam, Manhyung Jeong, Seon-Hyeong Lee, Cheolju Lee, Jaewhan Song
Fas-associated death domain (FADD) is an adaptor protein recruiting complexes of caspase 8 to death ligand receptors to induce extrinsic apoptotic cell death in response to a TNF superfamily member. Although, formation of the complex of FADD and caspase 8 upon death stimuli has been studied in detail, posttranslational modifications fine-tuning these processes have yet to be identified. Here we revealed that K6-linked polyubiquitylation of FADD on lysines 149 and 153 mediated by C terminus HSC70-interacting protein (CHIP) plays an important role in preventing formation of the death inducing signaling complex (DISC), thus leading to the suppression of cell death...
May 23, 2018: Oncogene
https://www.readbyqxmd.com/read/29769611/highly-reproducible-alkali-metal-doping-system-for-organic-crystals-through-enhanced-diffusion-of-alkali-metal-by-secondary-thermal-activation
#8
Jinho Lee, Chibeom Park, Intek Song, Jin Young Koo, Taekyung Yoon, Jun Sung Kim, Hee Cheul Choi
In this paper, we report an efficient alkali metal doping system for organic single crystals. Our system employs an enhanced diffusion method for the introduction of alkali metal into organic single crystals by controlling the sample temperature to induce secondary thermal activation. Using this system, we achieved intercalation of potassium into picene single crystals with closed packed crystal structures. Using optical microscopy and Raman spectroscopy, we confirmed that the resulting samples were uniformly doped and became K2 picene single crystal, while only parts of the crystal are doped and transformed into K2 picene without secondary thermal activation...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29761317/high-sodium-intake-and-sodium-to-potassium-ratio-may-be-linked-to-subsequent-increase-in-vascular-damage-in-adults-aged-40-years-and-older-the-korean-multi-rural-communities-cohort-mrcohort
#9
Sukyoung Jung, Mi Kyung Kim, Jinho Shin, Bo Youl Choi, Young-Hoon Lee, Dong Hoon Shin, Min-Ho Shin
PURPOSE: Subclinical vascular damage is a chronic intermediate process in cardiovascular disease (CVD) and high sodium (Na) has been regarded as an adverse factor in subclinical vascular health; however, the longitudinal relationship between Na intake and subclinical vascular damage has not been studied. We aimed to evaluate the longitudinal relationship of dietary Na intake and sodium to potassium ratio (Na:K) with brachial-ankle pulse wave velocity (baPWV) and carotid intima media thickness (cIMT) in healthy adults aged 40 years and older in Korea...
May 14, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29748501/proteomic-investigation-to-identify-anticancer-targets-of-nemopilema-nomurai-jellyfish-venom-in-human-hepatocarcinoma-hepg2-cells
#10
Indu Choudhary, Hyunkyoung Lee, Min Jung Pyo, Yunwi Heo, Jinho Chae, Seung Shic Yum, Changkeun Kang, Euikyung Kim
Nemopilema nomurai is a giant jellyfish that blooms in East Asian seas. Recently, N. nomurai venom (NnV) was characterized from a toxicological and pharmacological point of view. A mild dose of NnV inhibits the growth of various kinds of cancer cells, mainly hepatic cancer cells. The present study aims to identify the potential therapeutic targets and mechanism of NnV in the growth inhibition of cancer cells. Human hepatocellular carcinoma (HepG2) cells were treated with NnV, and its proteome was analyzed using two-dimensional gel electrophoresis, followed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI/TOF/MS)...
May 10, 2018: Toxins
https://www.readbyqxmd.com/read/29742867/molecular-identification-of-sarcocystis-grueneri-in-wild-korean-water-deer-hydropotes-inermis-argyropus
#11
Hye-Won Kim, Hyeon-Cheol Kim, Si-Yun Ryu, Kyoung-Seong Choi, Do-Hyeon Yu, Jinho Park, Joon-Seok Chae, Bae-Keun Park
The cysts of Sarcocystis grueneri were detected and characterized from the cardiac muscles of the Korean water deer ( Hydropotes inermis argyropus ). Of the 38 heart muscle samples examined by light microscopy, 10 were found infected with the cysts of Sarcocystis sp. The cysts appeared oval to spherical shape and measured 110-380 μm in length and 90-170 μm in width. A phylogenetic tree of the 18S rRNA sequences (1.5 kb) revealed a close relationship of the infected cysts to genus Sarcocystis . The 18S rRNA sequence of the infected cysts showed 100% identity to S...
April 2018: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29742866/detection-and-identification-of-sarcocystis-cruzi-protozoa-apicomplexa-by-molecular-and-ultrastructural-studies-in-naturally-infected-korean-cattle-bos-taurus-coreanae-from-daejeon-korea
#12
Tong-Il Choi, Eui-Ju Hong, Si-Yun Ryu, Cheolho Sim, Joon-Seok Chae, Hyeon-Cheol Kim, Jinho Park, Kyoung-Seong Choi, Do-Hyeon Yu, Jae-Gyu Yoo, Bae-Keun Park
To survey the prevalence of Sarcocystis infections, 210 heart samples were collected from Korean native cattle ( Bos taurus coreanae ) at an abattoir in Daejeon Metropolitan City, Republic of Korea. Sarcocysts were detected form 31 specimens (14.8%) and identified as Sarcocystis cruzi via transmission electron microscopy. The wall of S. cruzi has flattened protrusions that did not contain fibrils or microfilaments. The protrusions arose irregularly from the base, contained a fine granular substance, lacked internal microfilaments, and measured approximately 0...
April 2018: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29724620/prevalence-of-severe-fever-with-thrombocytopenia-syndrome-virus-in-black-goats-capra-hircus-coreanae-in-the-republic-of-korea
#13
Jun-Gu Kang, Yoon-Kyoung Cho, Yong-Sun Jo, Jeong-Byoung Chae, Sung-Suck Oh, Kye-Hyung Kim, Mee-Kyung Ko, Jongyoun Yi, Kyoung-Seong Choi, Do-Hyeon Yu, Hyeon-Cheol Kim, Jinho Park, Bae-Keun Park, Chang-Yong Choi, Young-Hun Jung, Joon-Seok Chae
Severe fever with thrombocytopenia syndrome virus (SFTSV) is an emerging tick-borne pathogen in China, Japan, and the Republic of Korea (ROK). The aim of this study was to investigate the prevalence of SFTSV antigens and anti-SFTSV antibodies in black goats (Capra hircus coreanae) throughout the ROK. Sera were collected from 737 black goats in nine provinces in the ROK. Eighteen of 737 (2.4%) goat sera were positive for SFTSV on one-step reverse transcription nested polymerase chain reaction. The amplified 346-bp S segments of SFTSV sequences were classified into three genotypes (BG1, BG2, and BG3), and were included in the Japanese clade rather than the Chinese clade, based on phylogenetic analysis...
April 26, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29721403/nanostructured-surfaces-for-analysis-of-anticancer-drug-and-cell-diagnosis-based-on-electrochemical-and-sers-tools
#14
REVIEW
Waleed A El-Said, Jinho Yoon, Jeong-Woo Choi
Discovering new anticancer drugs and screening their efficacy requires a huge amount of resources and time-consuming processes. The development of fast, sensitive, and nondestructive methods for the in vitro and in vivo detection of anticancer drugs' effects and action mechanisms have been done to reduce the time and resources required to discover new anticancer drugs. For the in vitro and in vivo detection of the efficiency, distribution, and action mechanism of anticancer drugs, the applications of electrochemical techniques such as electrochemical cell chips and optical techniques such as surface-enhanced Raman spectroscopy (SERS) have been developed based on the nanostructured surface...
2018: Nano Convergence
https://www.readbyqxmd.com/read/29713482/impact-of-periodontitis-as-representative-of-chronic-inflammation-on-long-term-clinical-outcomes-in-patients-with-atrial-fibrillation
#15
Sung Il Im, Jinho Heo, Bong Joon Kim, Kyoung-Im Cho, Hyun Su Kim, Jung Ho Heo, Jin Yong Hwang
Objectives: Relationship between atrial fibrillation (AF) and inflammation was shown in previous studies. However, there was limited data about the association between the periodontitis and AF in the long-term follow-up. The aim of this study was to evaluate the impact of periodontitis on long-term clinical outcomes in patients with AF. Methods: The Kosin University echocardiography, ECG and periodontitis database were reviewed from 2013 to 2015 to identify patients with AF...
2018: Open Heart
https://www.readbyqxmd.com/read/29713058/ubiquitylation-and-degradation-of-adenomatous-polyposis-coli-by-mkrn1-enhances-wnt-%C3%AE-catenin-signaling
#16
Hae-Kyung Lee, Eun-Woo Lee, Jinho Seo, Manhyung Jeong, Seon-Hyeong Lee, Soo-Youl Kim, Eek-Hoon Jho, Chel Hun Choi, Joon-Yong Chung, Jaewhan Song
The adenomatous polyposis coli (APC) protein has a tumor-suppressor function by acting as a negative regulator of the Wnt signaling pathway. While its role as a tumor suppressor is well-defined, the post-translational modifications that regulate APC stability are not fully understood. Here we showed that MKRN1, an E3 ligase, could directly interact with and ubiquitylate APC, promoting its proteasomal degradation. In contrast, an E3 ligase-defective MKRN1 mutant was no longer capable of regulating APC, indicating that its E3 ligase activity is required for APC regulation by MKRN1...
May 1, 2018: Oncogene
https://www.readbyqxmd.com/read/29713003/multi-omics-profiling-of-younger-asian-breast-cancers-reveals-distinctive-molecular-signatures
#17
Zhengyan Kan, Ying Ding, Jinho Kim, Hae Hyun Jung, Woosung Chung, Samir Lal, Soonweng Cho, Julio Fernandez-Banet, Se Kyung Lee, Seok Won Kim, Jeong Eon Lee, Yoon-La Choi, Shibing Deng, Ji-Yeon Kim, Jin Seok Ahn, Ying Sha, Xinmeng Jasmine Mu, Jae-Yong Nam, Young-Hyuck Im, Soohyeon Lee, Woong-Yang Park, Seok Jin Nam, Yeon Hee Park
Breast cancer (BC) in the Asia Pacific regions is enriched in younger patients and rapidly rising in incidence yet its molecular bases remain poorly characterized. Here we analyze the whole exomes and transcriptomes of 187 primary tumors from a Korean BC cohort (SMC) enriched in pre-menopausal patients and perform systematic comparison with a primarily Caucasian and post-menopausal BC cohort (TCGA). SMC harbors higher proportions of HER2+ and Luminal B subtypes, lower proportion of Luminal A with decreased ESR1 expression compared to TCGA...
April 30, 2018: Nature Communications
https://www.readbyqxmd.com/read/29677748/facet-control-of-subunits-in-anatase-tio%C3%A2-mesocrystal-by-diethanolamine-for-enhanced-photocatalytic-activity
#18
Chae Hee Park, Chang Min Lee, Jong Won Choi, Geun Chul Park, Jinho Joo
Controllable TiO2 architectures with different facets play a key role in the adjustment of the surface area and charge recombination efficiency in photocatalysts. In this study, we synthesized anatase TiO2 mesocrystals with diethanolamine (DEA, 0-5 mM) as a nontoxic capping agent to control the facet of subunits using hydrothermal method, and determine the effect of DEA on subunits, by-products, and consequent photocatalytic performance of TiO2 mesocrystals. The pure TiO2 was spindle-like shaped mesocrystal having bipyramidal subunits with high portion of {101} facets...
September 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29666662/prediction-of-gpcr-ligand-binding-using-machine-learning-algorithms
#19
Sangmin Seo, Jonghwan Choi, Soon Kil Ahn, Kil Won Kim, Jaekwang Kim, Jaehyuck Choi, Jinho Kim, Jaegyoon Ahn
We propose a novel method that predicts binding of G-protein coupled receptors (GPCRs) and ligands. The proposed method uses hub and cycle structures of ligands and amino acid motif sequences of GPCRs, rather than the 3D structure of a receptor or similarity of receptors or ligands. The experimental results show that these new features can be effective in predicting GPCR-ligand binding (average area under the curve [AUC] of 0.944), because they are thought to include hidden properties of good ligand-receptor binding...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29660331/biophysical-characterization-of-actin-bundles-generated-by-the-chlamydia-trachomatis-tarp-effector
#20
Susmita Ghosh, Jinho Park, Mitchell Thomas, Edgar Cruz, Omar Cardona, Hyeran Kang, Travis Jewett
Chlamydia trachomatis entry into host cells is mediated by pathogen-directed remodeling of the actin cytoskeleton. The chlamydial type III secreted effector, translocated actin recruiting phosphoprotein (Tarp), has been implicated in the recruitment of actin to the site of internalization. Tarp harbors G-actin binding and proline rich domains required for Tarp-mediated actin nucleation as well as unique F-actin binding domains implicated in the formation of actin bundles. Little is known about the mechanical properties of actin bundles generated by Tarp or the mechanism by which Tarp mediates actin bundle formation...
June 2, 2018: Biochemical and Biophysical Research Communications
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