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Kalinowskisi J, Seixas A, Chung A, Chery K, Richards S, Chung D, Jean-Louis G. 0582 High Rate of OSA among Blacks Using Home-Based WatchPAT Recordings. Sleep 2018. [DOI: 10.1093/sleep/zsy061.581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ngamnikom P, Phawaphuthanon N, Kim M, Boonsupthip W, Shin IS, Chung D. Fabrication of core-shell structured macrocapsules by electro-coextrusion with agar-hydrocolloid mixtures for precooked food applications: textural and release characteristics. Int J Food Sci Technol 2017. [DOI: 10.1111/ijfs.13539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Prada T, Shimano A, Chung D, Karcher D, Minto B. Mechanical analysis of transversal iliac fracture stabilization using dynamic compression plate or screws and PMM in polyurethane bone model. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-8434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Pelvic fractures correspond to 20 to 30 % of the fractures observed in dogs. Complete fractures, especially with bone axis deviation should be surgically treated. The mechanical study of surgical techniques is of utmost importance to assess the best way of treating these injuries. This study compared, biomechanically, the use of a dynamic compression plate (DCP) and screws (group 1) or screws and polymethylmethacrylate (PMMA) (group 2) to stabilize an iliac fracture using a static test. Sixteen canine synthetic hemi-pelvises (test specimens) with a transverse iliac osteotomy were used. After fixation with implants, a load was applied to the acetabulum until failure. Group 1 maximal compressive load was 133.9±18.60 N, displacement at yield 21.10±3.59mm and stiffness 125.22±12.25N/mm. Group 2 maximal compressive load was 183.50±27.38N, displacement at yield 16.66±5.42mm and stiffness 215.68±33.34N/mm. The stabilization with polymethylmethacrylate was stronger than dynamic compression plate since it resisted a greater load in all test specimens.
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Cho YH, Kim SJ, Kim HW, Kim JY, Gwak JS, Chung D, Kim KH, Park K, Park YC. Continuous supply of glucose and glycerol enhances biotransformation of ricinoleic acid to ( E )-11-(heptanoyloxy) undec-9-enoic acid in recombinant Escherichia coli. J Biotechnol 2017; 253:34-39. [DOI: 10.1016/j.jbiotec.2017.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 04/29/2017] [Accepted: 05/19/2017] [Indexed: 11/25/2022]
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Nelson C, O'Brien K, Mendizabal A, Gersten I, Uhl L, Chung D, Shah N, Avigan D, Pasquini M. Development and management of a multi-center, center-specific cellular therapy manufacturing approach: The experience of the Blood and Marrow Transplant Clinical Trials Network (BMT CTN) Protocol #1401. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Richards S, Seixas A, Chung D, Nunes J, Grandner M, Zizi F, Tan N, Jean-Louis G. 1150 SLEEP IMPACTS QUALITY OF LIFE AND NEUROCOGNITIVE CHARACTERISTICS OF BLACK AND HISPANIC STROKE SURVIVORS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chung D, Seixas A, Richards SL, Casimir G, Auguste E, Vallon J, Hutchinson J, Zizi F, Jean-Louis G. 1055 THE IMPACT OF SHORT SLEEP DURATION ON INSTRUMENTAL ACTIVITIES OF DAILY LIVING (IADL) AMONG STROKE SURVIVORS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Razzak MA, Kim M, Kim HJ, Park YC, Chung D. Deciphering the interactions of fish gelatine and hyaluronic acid in aqueous solutions. Int J Biol Macromol 2017; 102:885-892. [PMID: 28450250 DOI: 10.1016/j.ijbiomac.2017.04.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 04/19/2017] [Accepted: 04/23/2017] [Indexed: 11/16/2022]
Abstract
The interactions of fish gelatine (FG) with hyaluronic acid (HA) are studied in an aqueous environment at 25°C by turbidimetric titration, confocal scanning laser microscopy, dynamic light scattering, zeta potentiometry, spectrophotometry with methylene blue, and construction of state diagrams. FG forms soluble complexes with HA above a boundary pH (pHφ1), where both biopolymers are net-negatively charged, but develop insoluble complexes as liquid-state complex coacervates below pHφ1, where the two biopolymers are oppositely charged. The insoluble complexes are continuously aggregated with further acid titration, followed by immediate visible phase-separation when another boundary pH (pHp) is reached. The complex formation is mainly driven by electrostatic attractions rather than hydrogen bonding or hydrophobic interactions. The complex formation is promoted by increasing FG-to-HA weight ratio or total biopolymer concentration, or at a low ionic strength, but significantly suppressed in the presence of high ionic strength.
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Chan L, MacDonald M, Chung D, Hutchins N, Ooi A. Analysis of the coherent and turbulent stresses of a numerically simulated rough wall pipe. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/822/1/012011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Cho S, Chang MH, Yun SH, Kang HG, Chung H, Song KM, Koo D, Chung D, Jeong D, Lee MK, Lim JY, Kim DJ. R&D Activities on the Tritium Storage and Delivery System in Korea. FUSION SCIENCE AND TECHNOLOGY 2017. [DOI: 10.13182/fst11-a12602] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ahn SI, Park JH, Kim JH, Oh DG, Kim M, Chung D, Jhoo JW, Kim GY. Optimization of Manufacturing Conditions for Improving Storage Stability of Coffee-Supplemented Milk Beverage Using Response Surface Methodology. Korean J Food Sci Anim Resour 2017; 37:87-97. [PMID: 28316475 PMCID: PMC5355588 DOI: 10.5851/kosfa.2017.37.1.87] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 12/05/2016] [Accepted: 01/05/2017] [Indexed: 11/06/2022] Open
Abstract
This study aimed at optimizing the manufacturing conditions of a milk beverage supplemented with coffee, and monitoring its physicochemical and sensory properties during storage. Raw milk, skim milk powder, coffee extract, and emulsifiers were used to manufacture the beverage. Two sucrose fatty acid esters, F110 and F160, were identified as suitable emulsifiers. The optimum conditions for the beverage manufacture, which can satisfy two conditions at the same time, determined by response surface methodology (RSM), were 5,000 rpm primary homogenization speed and 0.207% sucrose fatty acid emulsifier addition. The particle size and zeta-potential of the beverage under the optimum condition were 190.1 nm and - 25.94±0.06 mV, respectively. In comparison study between F110 added group (GF110) and F160 added group (GF160) during storage, all samples maintained its pH around 6.6 to 6.7, and there was no significant difference (p<0.05). In addition, GF110 showed significantly higher zeta-potential than GF160 (p<0.05). The particle size of GF110 and GF160 were approximately 190.1 and 223.1 nm, respectively at initial. However, size distribution of the GF160 tended to increase during storage. Moreover, increase of the particle size in GF160 was observed in microphotographs of it during storage. The L* values gradually decreased within all groups, whereas the a* and b* values did not show significant variations (p<0.05). Compared with GF160, bitterness, floating cream, and rancid flavor were more pronounced in the GF110. Based on the result obtained from the present study, it appears that the sucrose fatty acid ester F110 is more suitable emulsifier when it comes to manufacturing this beverage than the F160, and also contributes to extending product shelf-life.
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Min WK, Pudtikajorn K, Kim M, Shin IS, Chung D. Low-amperage pulsating direct current has a bactericidal effect on marine fish pathogens in circulating seawater. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.08.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Parvizi N, Chung D, Little MW, Gleeson FV, Anderson EM. Does perfusion CT play a role in the evaluation of percutaneous microwave-ablated lung tumours? Clin Radiol 2016; 71:1137-42. [PMID: 27554616 DOI: 10.1016/j.crad.2016.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/16/2016] [Accepted: 07/01/2016] [Indexed: 11/21/2022]
Abstract
AIM To assess the clinical utility of perfusion computed tomography (pCT) parameters in microwave ablation (MWA) of lung tumours. MATERIALS AND METHODS Patients were included who had primary or metastatic lung tumours and underwent pCT studies immediately pre- and post-MWA. Perfusion maps of the tumours were constructed using CT perfusion software (GE, Milwaukee, WI, USA). Regions of interest were drawn on sequential axial sections to extract the pCT parameters, blood volume (BV), average blood flow (BF), and mean transit time (MTT) from the entire tumour volume. Direct visualisation of perfusion maps were performed by two experienced readers blinded to outcome. Data were analysed using the Mann-Whitney test. RESULTS Thirty-one patients with 34 lung tumours had follow-up data at 12 months. The median tumour diameter was 19 mm (10-52 mm). Seven patients developed local tumour progression (LTP) at 12 months. There was no statistical difference between patients with LTP and complete treatment based on quantitative pCT parameters. Using radiologist visualisation of perfusion maps, there was moderate agreement between the two readers (kappa coefficient 0.53) with a combined 96% sensitivity, 62% specificity, 91% positive predictive value, and 80% negative predictive value. CONCLUSION Quantitative pCT parameters do not help differentiate between LTP and complete treatment, but subjective analysis of perfusion maps may be a useful assessment tool for identifying treatment adequacy potentially enabling identification of areas requiring further treatment at the time of the procedure.
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Anvari M, Chung D. Dynamic rheological and structural characterization of fish gelatin – Gum arabic coacervate gels cross-linked by tannic acid. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.04.028] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Anvari M, Chung D. Effect of cooling–heating rate on sol-gel transformation of fish gelatin–gum arabic complex coacervate phase. Int J Biol Macromol 2016; 91:450-6. [DOI: 10.1016/j.ijbiomac.2016.05.096] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 04/18/2016] [Accepted: 05/27/2016] [Indexed: 11/16/2022]
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Razzak MA, Kim M, Chung D. Elucidation of aqueous interactions between fish gelatin and sodium alginate. Carbohydr Polym 2016; 148:181-8. [DOI: 10.1016/j.carbpol.2016.04.035] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/03/2016] [Accepted: 04/08/2016] [Indexed: 11/27/2022]
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Nguyen TTH, Si J, Kang C, Chung B, Chung D, Kim D. Facile preparation of water soluble curcuminoids extracted from turmeric (Curcuma longa L.) powder by using steviol glucosides. Food Chem 2016; 214:366-373. [PMID: 27507487 DOI: 10.1016/j.foodchem.2016.07.102] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 06/18/2016] [Accepted: 07/14/2016] [Indexed: 01/12/2023]
Abstract
Curcuminoids from rhizomes of Curcuma longa possess various biological activities. However, low aqueous solubility and consequent poor bioavailability of curcuminoids are major limitations to their use. In this study, curcuminoids extracted from turmeric powder using stevioside (Ste), rebaudioside A (RebA), or steviol glucosides (SG) were solubilized in water. The optimum extraction condition by Ste, RebA, or SG resulted in 11.3, 9.7, or 6.7mg/ml water soluble curcuminoids. Curcuminoids solubilized in water showed 80% stability at pH from 6.0 to 10.0 after 1week of storage at 25°C. The particle sizes of curcuminoids prepared with Ste, RebA, and SG were 110.8, 95.7, and 32.7nm, respectively. The water soluble turmeric extracts prepared with Ste, RebA, and SG showed the 2,2-diphenyl-1-picrylhydrazyl radical scavenging (SC50) activities of 127.6, 105.4, and 109.8μg/ml, and the inhibition activities (IC50) against NS2B-NS3(pro) from dengue virus type IV of 14.1, 24.0 and 15.3μg/ml, respectively.
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Uddin GM, Kim CY, Chung D, Kim KA, Jung SH. One-step isolation of sappanol and brazilin from Caesalpinia sappan and their effects on oxidative stress-induced retinal death. BMB Rep 2016; 48:289-94. [PMID: 25248564 PMCID: PMC4578569 DOI: 10.5483/bmbrep.2015.48.5.189] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Indexed: 11/20/2022] Open
Abstract
Caesalpinia sappan is a well-distributed plant that is cultivated in Southeast Asia, Africa, and the Americas. C. sappan has been used in Asian folk medicine and its extract has been shown to have pharmacological effects. Two homoisoflavonoids, sappanol and brazilin, were isolated from C. sappan by using centrifugal partition chromatography (CPC), and tested for protective effects against retinal cell death. The isolated homoisoflavonoids produced approximately 20-fold inhibition of N-retinylidene-N-retinyl-ethanolamine (A2E) photooxidation in a dose-dependent manner. Of the 2 compounds, brazilin showed better inhibition (197.93 ± 1.59 μM of IC50). Cell viability tests and PI/Hoechst 33342 double staining method indicated that compared to the negative control, sappanol significantly attenuated H2O2-induced retinal death. The compounds significantly blunted the up-regulation of intracellular reactive oxygen species (ROS), and sappanol inhibited lipid peroxidation in a concentration-dependent manner. Thus, both compounds represent potential antioxidant treatments for retinal diseases.
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Ruparel M, Ejaz A, Chauhan N, Ridge M, Chung D, Succony L, Banka R, Thakrar R, Kumar N, Sage E, Forster M, Janes S, Newsom-Davis T, Ahmad T, Navani N. 23 Characteristics of lung cancer patients diagnosed following emergency admission. Lung Cancer 2016. [DOI: 10.1016/s0169-5002(16)30040-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chung D. Gene therapy clinical trials for childhood blindness and its applications for ocular, auditory and renal ciliopathies. Cilia 2015. [PMCID: PMC4518623 DOI: 10.1186/2046-2530-4-s1-o10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chung D, Ferro Luzzi E, Bettoli Musy L, Narring F. [Contraception and abortion: an update in 2015]. REVUE MEDICALE SUISSE 2015; 11:1744-1749. [PMID: 26591787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Family doctors can play an important role in preventing unplanned pregnancies. This article addresses the different contraceptives methods available in Switzerland, which are classified in 2 groups and recommends using the GATHER approach (Greet, Ask, Tell, Help, Explain, Return) to promote compliance. LARC (long acting reversible contraceptives) can be recommended to any woman who needs a reliable birth control method. These contraceptives require minimum effort for high efficiency. Further explanation regarding the use of an emergency contraception must be provided when short action contraceptives are chosen. Switzerland's abortion rate is one of the lowest in the world. Medical abortion tends to be more and more prominent. Under certain circumstances, it can be self-administered at home.
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Anvari M, Pan CH, Yoon WB, Chung D. Characterization of fish gelatin–gum arabic complex coacervates as influenced by phase separation temperature. Int J Biol Macromol 2015; 79:894-902. [DOI: 10.1016/j.ijbiomac.2015.06.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Revised: 05/30/2015] [Accepted: 06/02/2015] [Indexed: 11/30/2022]
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Chung J, Cho D, Chung D, Chung M. Serum Cystatin C Levels are Positively Associated with Cardiovascular Autonomic Neuropathy in Patients with Type 2 Diabetes. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1555774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Chung D, Kim S. Laparoendoscopic Single-Site Radical Trachelectomy Using Conventional Laparoscopic Instruments: A Case Report. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Yoon WS, Chung D. Helical Tomotherapy for Skull Base Tumors: A Preliminary Report. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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