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https://www.readbyqxmd.com/read/29228735/verteporfin-inhibits-gastric-cancer-cell-growth-by-suppressing-adhesion-molecule-fat1
#1
Myoung-Hee Kang, Gi Seok Jeong, Duane T Smoot, Hassan Ashktorab, Chang Mo Hwang, Byung Sik Kim, Hee Sung Kim, Yun-Yong Park
Gastric cancer (GC) is a leading cause of death worldwide and in urgent need of targeted drug development. In the current, we investigated the ability of a repositioned drug verteporfin (VP), originally a treatment for macular degeneration, to inhibit GC cell growth. VP inhibited growth of various GC cell lines. Gene expression profiling of GC cell lines treated with VP revealed that migration-related genes and those with oncogenic potential were down-regulated. Of these genes, we found that FAT1, an adhesion molecule promoting cell invasion, was highly suppressed by VP...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29225663/high-throughput-detection-of-antioxidants-in-mulberry-fruit-using-correlations-between-high-resolution-mass-and-activity-profiles-of-chromatographic-fractions
#2
Ye Ji Park, Si Hyun Seong, Min Sun Kim, Sang Wan Seo, Mee Ree Kim, Hyun Sik Kim
Background: Plant extracts contain a huge variety of pharmacologically active substances. Conventionally, various chromatographic methods must be applied several times to purify functional compounds to measure their functional activity. However, conventional purification methods are time-consuming and expensive due to the laborious purification process. Recently, a high-throughput discovery method that replaces such time-consuming purification processes was introduced; this method uses 15 T ultra-high-resolution Fourier transform ion cyclotron resonance mass spectrometry (15 T FT-ICR MS) and a high-throughput screening method...
2017: Plant Methods
https://www.readbyqxmd.com/read/29225138/9-hydroxycanthin-6-one-isolated-from-stem-bark-of-ailanthus-altissima-induces-ovarian-cancer-cell-apoptosis-and-inhibits-the-activation-of-tumor-associated-macrophages
#3
Miran Jeong, Hye Mi Kim, Ji-Hye Ahn, Kyung-Tae Lee, Dae Sik Jang, Jung-Hye Choi
The stem bark of Ailanthus altissima is used in traditional medicine in Asia to treat a variety of diseases, including cancer. The aim of this study was to identify compounds with tumoricidal activity from A. altissima stem bark and to investigate their mechanisms of action. Among the 13 compounds isolated from the ethyl acetate fraction of A. altissima stem bark, the β-carboline alkaloid 9-hydroxycanthin-6-one had potent cytotoxicity in all three ovarian cancer cell types examined. 9-Hydroxycanthin-6-one induced apoptosis through the activation of caspases-3, -8, and -9...
December 7, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29225084/autophagy-deficiency-in-myeloid-cells-exacerbates-eosinophilic-inflammation-in-chronic-rhinosinusitis
#4
Go Eun Choi, Seung-Yong Yoon, Ji-Yun Kim, Do-Young Kang, Yong Ju Jang, Hun Sik Kim
BACKGROUND: Eosinophilic inflammation is a major pathologic feature of chronic rhinosinusitis and is frequently associated with severe refractory disease. Prostaglandin D2 level is elevated in chronic rhinosinusitis and is an important contributing factor to eosinophilic inflammation. Autophagy has a pleiotropic effect on immune responses and disease pathogenesis. Recent studies suggest the potential involvement of autophagy in chronic rhinosinusitis and the prostaglandin pathway. OBJECTIVE: To investigate whether altered function of autophagy is associated with eosinophilic inflammation and dysregulated production of prostaglandin D2 in chronic rhinosinusitis...
December 7, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29224362/structure-determination-and-quantification-of-a-new-flavone-glycoside-with-anti-acetylcholinesterase-activity-from-the-herbs-of-elsholtzia-ciliata
#5
Agung Nugroho, Jong-Hyuk Park, Jae Sue Choi, Kyoung-Sik Park, Joon-Pyo Hong, Hee-Juhn Park
Three acacetin triglycosides (compounds 1, 2 and 3) were isolated from the herbs of Elsholtzia ciliata (Labiatae). The structure were identified as 7-O-β-D-glucopyranosyl-(1 → 2)[α-L-rhamnopyranosyl-(1 → 6)]-β-D-glucopyranoside (compound 1), 7-O-(6-O-acetyl)-β-D-glucopyranosyl-(1 → 2)[α-L-rhamnopyranosyl-(1 → 6)]-β-D-glucopyranoside (compound 2) and 7-O-(6-O-acetyl)-β-D-glucopyranosyl-(1 → 2)[(4-O-acetyl)-α-L-rhamnopyranosyl-(1 → 6)]-β-D-glucopyranoside (compound 3) of acacetin...
December 11, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29223138/plant-expressed-fc-fusion-protein-tetravalent-dengue-vaccine-with-inherent-adjuvant-properties
#6
Mi Young Kim, Alastair Copland, Kaustuv Nayak, Anmol Chandele, Muhammad Shamsher Ahmed, Qibo Zhang, Gil Reynolds Diogo, Matthew John Paul, Sven Hofmann, Moon-Sik Yang, Yong-Suk Jang, Julian K-C Ma, Rajko Reljic
Dengue is a major global disease requiring improved treatment and prevention strategies. The recently licensed Sanofi-Pasteur Denvaxia vaccine does not protect children under the age of nine and additional vaccine strategies are thus needed to halt this expanding global epidemic. Here, we employed a molecular engineering approach and plant-expression to produce a humanised and highly immunogenic Poly-Immunoglobulin G Scaffold (PIGS) fused to the consensus dengue envelope protein III domain (cEDIII). The immunogenicity of this IgG Fc receptor targeted vaccine candidate was demonstrated in transgenic mice expressing human FcγRI/CD64, by induction of neutralising antibodies and evidence of cell-mediated immunity...
December 9, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29221802/inflammation-in-the-prediction-of-type-2-diabetes-and-hypertension-in-healthy-adults
#7
Ki-Chul Sung, Seungho Ryu, Joo-Wook Sung, Yong Bum Kim, Yu Sam Won, Dong Sik Cho, Sun H Kim, Alice Liu
BACKGROUND: While inflammation is associated with obesity and insulin resistance, their inter-relationships in the development of type 2 diabetes or hypertension are not clear. AIM OF THE STUDY: To evaluate inflammatory markers in prediction of type 2 diabetes and hypertension. METHODS: The study population of this retrospective cohort study consisted of individuals who participated in a comprehensive health screening program with measurement of white blood cell count and C-reactive protein from 2002-2010 (N = 96,606) in nondiabetic and normotensive Koreans...
December 5, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29221420/influence-of-solvent-polarization-and-non-uniform-ion-size-on-electrostatic-properties-between-charged-surfaces-in-an-electrolyte-solution
#8
Jun-Sik Sin
In this paper, we study electrostatic properties between two similar or oppositely charged surfaces immersed in an electrolyte solution by using the mean-field approach accounting for solvent polarization and non-uniform size effects. Applying a free energy formalism accounting for unequal ion sizes and orientational ordering of water dipoles, we derive coupled and self-consistent equations to calculate electrostatic properties between charged surfaces. Electrostatic properties for similarly charged surfaces depend on the counterion size but not on the coion size...
December 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29221284/comparison-of-perioperative-outcomes-following-hybrid-minimally-invasive-versus-open-ivor-lewis-esophagectomy-for-esophageal-cancer
#9
Ju Sik Yun, Kook Joo Na, Sang Yun Song, Seok Kim, In Seok Jeong, Sang Gi Oh
Background: The outcomes of various minimally invasive esophagectomy (MIE) procedures for esophageal cancer have been reported; however, those of the hybrid approach are lacking. This study aimed to assess the impacts of hybrid minimally invasive Ivor Lewis esophagectomy (HIL, laparoscopy and right thoracotomy) for esophageal cancer on perioperative outcomes compared with the open approach. Methods: This was a retrospective study of 153 patients who underwent Ivor Lewis esophagectomy for squamous cell carcinoma between January 2008 and December 2016...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29221159/melatonin-suppresses-fibrotic-responses-induced-by-cigarette-smoke-via-downregulation-of-tgf-%C3%AE-1
#10
Na-Rae Shin, Ji-Won Park, In-Chul Lee, Je-Won Ko, Sung-Hyeuk Park, Joong-Sun Kim, Jong-Choon Kim, Kyung-Seop Ahn, In-Sik Shin
Cigarette smoke (CS) is the most important risk factor in the development of chronic obstructive pulmonary disease (COPD). Pulmonary fibrosis is an irreversible response and important feature of COPD. In this study, we investigated the effects of melatonin on fibrotic response in development of COPD using a CS and lipopolysaccharide (LPS) induced COPD model and cigarette smoke condensate (CSC)-stimulated NCI-H292 cells, a human mucoepidermoid cell line. Mice were exposed to CS for 1 h per day (8 cigarettes per day) from day 1 to day 7 and were treated intranasally with LPS on day 4...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220421/optimal-dose-of-dabigatran-for-the-prevention-of-thromboembolism-with-minimal-bleeding-risk-in-korean-patients-with-atrial-fibrillation
#11
Ki Hong Lee, Hyung Wook Park, Nuri Lee, Dae Young Hyun, Jumin Won, Sung Sik Oh, Hyuk Jin Park, Yongcheol Kim, Jae Yeong Cho, Min Chul Kim, Doo Sun Sim, Hyun Joo Yoon, Nam Sik Yoon, Kye Hun Kim, Young Joon Hong, Ju Han Kim, Youngkeun Ahn, Myung Ho Jeong, Jong Chun Park, Jeong Gwan Cho
Aims: We aim to determine the optimal dose of dabigatran in Korean patients with atrial fibrillation (AF). Methods and results: We analysed 1834 patients with non-valvular AF, classified into a warfarin group (n = 990), dabigatran 150 mg group (D150, n = 294), and 110 mg group (D110, n = 550). The D110 group was further classified into patients concordant (co-D110, n = 367) and patients discordant (di-D110, n = 183) with guidelines to dose reduction...
December 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29217823/lysophosphatidic-acid-protects-against-acetaminophen-induced-acute-liver-injury
#12
Geon Ho Bae, Sung Kyun Lee, Hyung Sik Kim, Mingyu Lee, Ha Young Lee, Yoe-Sik Bae
We investigated the effect of lysophosphatidic acid (LPA) in experimental acetaminophen (APAP)-induced acute liver injury. LPA administration significantly reduced APAP-challenged acute liver injury, showing attenuated liver damage, liver cell death and aspartate aminotransferase and alanine aminotransferase levels. APAP overdose-induced mortality was also significantly decreased by LPA administration. Regarding the mechanism involved in LPA-induced protection against acute liver injury, LPA administration significantly increased the glutathione level, which was markedly decreased in APAP challenge-induced acute liver injury...
December 8, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29217822/hepatocyte-toll-like-receptor-4-mediates-lipopolysaccharide-induced-hepcidin-expression
#13
Yong-Soo Lee, Yong-Hoon Kim, Yoon Seok Jung, Ki-Sun Kim, Don-Kyu Kim, Soon-Young Na, Ji-Min Lee, Chul-Ho Lee, Hueng-Sik Choi
Hepcidin expression is induced by inflammatory molecules such as lipopolysaccharide (LPS) via a macrophage-mediated pathway. Although hepatocytes directly respond to LPS, the molecular mechanism underlying toll-like receptor (TLR)-dependent hepcidin expression by hepatocytes is mostly unknown. Here we show that LPS can directly induce the mRNA expression and secretion of hepcidin by hepatocytes via TLR4 activation. Using hepatocytes deficient in TLR4, myeloid differentiation factor 88 (MyD88) and TIR domain-containing adaptor inducing interferon-β (TRIF), we demonstrated that LPS-induced hepcidin expression by hepatocytes is regulated by its specific receptor, TLR4, via a MyD88-dependent signaling pathway...
December 8, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29215822/eleven-year-cumulative-incidence-and-estimated-lifetime-prevalence-of-urolithiasis-in-korea-a-national-health-insurance-service-national-sample-cohort-based-study
#14
Bum Sik Tae, Ulanbek Balpukov, Sung Yong Cho, Chang Wook Jeong
BACKGROUND: The purpose of this study was estimation of the cumulative incidence and lifetime prevalence of urolithiasis in Korea. METHODS: We used a National Health Insurance Service (NHIS) sample cohort dataset that included approximately 1 million individuals from Korea. Data from January 2002 to December 2013 were collected. We calculated the annual prevalence, recurrence rate, and estimate lifetime prevalence of urolithiasis. Multivariate logistic regression analysis was used to identify risk factors associated with urolithiasis...
January 8, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29215443/scaffold-free-bone-regeneration-using-platelet-rich-fibrin-in-calvarial-defect-model
#15
Yeo Reum Jeon, Mi Jung Kim, Yong Oock Kim, Tai Suk Roh, Won Jai Lee, Eun Hye Kang, In Sik Yun
Bone regeneration is a complex process influenced by various physiological factors. Platelet-rich plasma (PRP) contains many growth factors and has shown osteogenic effects. The PRP is usually activated before use. However, the authors showed that nonactivated PRP (nPRP) and activated PRP have comparable osteogenic effects in the previous study. Generally, a scaffold has been needed for the application of PRP in the cranial defect model. In this study, the authors aimed to compare the performance of scaffold free platelet-rich fibrin (PRF) to nPRP as an adjuvant for bone regeneration...
December 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29214779/effectiveness-and-safety-of-biolimus-a9%C3%A2-eluting-stent-in-patients-with-acute-coronary-syndrome-a-multicenter-observational-study-beauty-study
#16
Keun Ho Park, Myung Ho Jeong, Young Joon Hong, Youngkeun Ahn, Hyun Kuk Kim, Young Yub Koh, Doo Il Kim, Sang Wook Kim, Weon Kim, Seung Woon Rha, Jay Young Rhew, Jong Seon Park, Hun Sik Park, Jang Ho Bae, Jang Whan Bae, Seok Kyu Oh, Sung Yun Lee, Seung Wook Lee, Jae Hwan Lee, Sang Yeob Lim, Jang Hyun Cho, Kwang Soo Cha, Jai Keon Chae, Seung Ho Hur, Sun Ho Hwang, Jin Yong Hwang
PURPOSE: This study sought to determine the 1-year clinical effectiveness and safety of a biodegradable, polymer-containing Biolimus A9™-eluting stent (BES) in Korean patients with acute coronary syndrome (ACS). MATERIALS AND METHODS: A total of 1000 ACS patients with 1251 lesions who underwent implantation of BESs at 22 centers in Korea were enrolled between May 2011 and July 2013. We assessed major adverse cardiac events (MACE) defined as the composite of cardiac death, non-fatal myocardial infarction (MI), and clinical-driven target vessel revascularization at 12 months...
January 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29212780/excitatory-gabaergic-action-and-increased-vasopressin-synthesis-in-hypothalamic-magnocellular-neurosecretory-cells-underlie-the-high-plasma-level-of-vasopressin-in-diabetic-rat
#17
Young-Beom Kim, Woong Bin Kim, Won Woo Jung, Xiangyan Jin, Yoon Sik Kim, Byoungjae Kim, Hee Chul Han, Gene D Block, Christopher S Colwell, Yang In Kim
Diabetes mellitus (DM) is associated with increased plasma levels of arginine-vasopressin (AVP) which may aggravate hyperglycemia and nephropathy. However, the mechanisms by which DM may cause the increased AVP levels are not known. Electrophysiological recordings in the supraoptic nucleus (SON) slices from streptozotocin-induced DM model (STZ) rats and vehicle-treated control rats revealed that GABA functions generally as an excitatory neurotransmitter in the AVP neurons of STZ rats, whereas it evoked usually inhibitory responses in the cells of control animals...
December 6, 2017: Diabetes
https://www.readbyqxmd.com/read/29212510/factors-affecting-treatment-outcome-in-patients-with-idiopathic-nonspecific-interstitial-pneumonia-a-nationwide-cohort-study
#18
Sang Hoon Lee, Moo Suk Park, Song Yee Kim, Dong Soon Kim, Young Whan Kim, Man Pyo Chung, Soo Taek Uh, Choon Sik Park, Sung Woo Park, Sung Hwan Jeong, Yong Bum Park, Hong Lyeol Lee, Jong Wook Shin, Eun Joo Lee, Jin Hwa Lee, Yangin Jegal, Hyun Kyung Lee, Yong Hyun Kim, Jin Woo Song, Jong Sun Park
BACKGROUND: The effects of corticosteroid-based therapy in patients with idiopathic nonspecific interstitial pneumonia (iNSIP), and factors affecting treatment outcome, are not fully understood. We aimed to investigate the long-term treatment response and factors affecting the treatment outcome in iNSIP patients from a multi-center study in Korea. METHODS: The Korean interstitial lung disease (ILD) Study Group surveyed ILD patients from 2003 to 2007. Patients were divided into two groups to compare the treatment response: response group (forced vital capacity (FVC) improves ≥10% after 1 year) and non-response group (FVC <10%)...
December 6, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29212315/post-ercp-bleeding-in-the-era-of-multiple-antiplatelet-agents
#19
Hyoung-Chul Oh, Ihab I El Hajj, Jeffrey J Easler, James Watkins, Evan L Fogel, Lee McHenry, Glen A Lehman, Jung Sik Choi, Hyun Kang, Stuart Sherman
Background/Aims: This study aimed to determine the risk of post-endoscopic retrograde cholangiopancreatography (post-ERCP) bleeding among patients taking antiplatelet agents (APAs), particularly in the era of multiple APAs. Methods: The primary outcomes were the frequency, type, and severity of ERCP-related bleeding according to the use of APAs. Results: The frequencies of post-ERCP bleeding among the four different groups were 16 of 2,083 (0...
December 8, 2017: Gut and Liver
https://www.readbyqxmd.com/read/29212296/immune-enhancement-effect-of-asterias-amurensis-fatty-acids-through-nf-kappab-and-mapk-pathways-on-raw-264-7-cells
#20
Chaiwat Monmai, Seok Hyeon Go, Il-Sik Shin, SangGuan You, Hyungjae Lee, SeokBeom Kang, Woo Jung Park
Asterias amurensis is a marine organism that causes damage to the fishing industry worldwide; however, it has been considered a promising source of functional components. The present study aimed to investigate the immune-enhancing effects of fatty acids from three organs of A. amurensis on murine macrophages (RAW 264.7 cells). A. amurensis fatty acids boosted production of immune-associated factors such as nitric oxide (NO) and prostaglandin E2 in RAW 264.7 cells. A. amurensis fatty acids also enhanced expression of critical immune-associated genes, including iNOS, TNF-α, IL-1β, and IL-6, as well as COX-2...
December 8, 2017: Journal of Microbiology and Biotechnology
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