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Park YS, Lee SH, Choi HW, Lee HS, Lee JS, Seo JT. Abnormal Human Sperm Parameters Contribute to Sperm DNA Fragmentation in Men with Varicocele. World J Mens Health 2018; 36:239-247. [PMID: 30079641 PMCID: PMC6119848 DOI: 10.5534/wjmh.180014] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 05/16/2018] [Accepted: 05/23/2018] [Indexed: 12/15/2022] Open
Abstract
PURPOSE This study was performed to evaluate and compare threshold sperm parameters and sperm DNA fragmentation index (DFI), and further analyzed whether sperm DFI could be predicted from sperm parameters in men with varicocele. MATERIALS AND METHODS A total of 157 semen samples underwent both semen analysis and sperm DNA fragmentation (SDF) testing in men with varicocele. Sperm parameters were assessed using the World Health Organization guidelines. SDF testing was performed using the Halosperm kit. Sperm parameters and sperm DFI results were compared. RESULTS The overall sperm parameter results and sperm DFI showed normal values; however, the morphology value was at the lower limit of normal. High sperm DFI was associated with significantly lower motility and viability (p<0.001, respectively). Sperm motility and morphology were significantly higher in the higher sperm count group compared to the lower sperm count group (p<0.05), while sperm DFI was higher in the lower sperm count group (p<0.05). Sperm count and viability and sperm DFI were significantly associated with the quality of sperm motility (p<0.001). Sperm motility and sperm DFI were significantly different (p<0.001) between normal and abnormal sperm viability groups. Between normal and abnormal sperm morphology groups, sperm count, motility, and sperm DFI showed significant differences (p<0.001). CONCLUSIONS In this study, a correlation between SDF and sperm parameters was confirmed in men with varicocele. SDF may be contributing factors to sperm motility, viability, and morphology. Abnormal sperm count, motility, and viability showed high sperm DFI. Therefore, lower sperm parameters were indicative of increasing SDF in men with varicocele.
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Quintero M, Velásquez A, Jutinico LM, Jiménez-Vergara E, Blandón LM, Martinez K, Lee HS, Gómez-León J. Bioprospecting from marine coastal sediments of Colombian Caribbean: screening and study of antimicrobial activity. J Appl Microbiol 2018; 125:753-765. [PMID: 29791769 DOI: 10.1111/jam.13926] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/25/2018] [Accepted: 05/12/2018] [Indexed: 11/28/2022]
Abstract
AIMS To isolate micro-organisms associated with marine coastal sediments of Colombian Caribbean Sea and for evaluating its antimicrobial activity in order to identify the most active strains. METHODS AND RESULTS One hundred and four strains were isolated from sediment samples of the Colombian Caribbean Sea. First at all, an antimicrobial activity screening was made using agar well diffusion method against the pathogens: Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Candida albicans, Candida tropicalis and Pseudomonas aeruginosa. Seventeen strains showed strong antimicrobial activity and were identified as members of the Streptomyces, Micrococcus and Bacillus genera. Organic extracts were produced by liquid-liquid extraction and HPLC profiles of the most active extracts were obtained. Then, the antimicrobial activity of the extracts was evaluated with the broth microdilution test, finding antimicrobial activities superior to 90% against S. aureus MRSA and C. albicans. HPLC profiles indicated the presence of different antimicrobial compounds. CONCLUSION This study demonstrates that the microorganisms isolated from the Colombian Caribbean Sea are possible sources of antimicrobial compounds against pathogenic strains. SIGNIFICANCE AND IMPACT OF STUDY These results contribute to the knowledge of the biotechnological potential of the Colombian biodiversity for the development of pharmaceutical products that can counteract the increasing problem of pathogen resistance.
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Kwon HH, Bang SY, Won S, Park Y, Yi JH, Joo YB, Lee HS, Bae SC. Synergistic effect of cumulative corticosteroid dose and immunosuppressants on avascular necrosis in patients with systemic lupus erythematosus. Lupus 2018; 27:1644-1651. [DOI: 10.1177/0961203318784648] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives Avascular necrosis (AVN) is one of the most common causes of organ damage in patients with systemic lupus erythematosus (SLE) and often causes serious physical disability. The aims of this study were to investigate clinical risk factors associated with symptomatic AVN and to analyze their synergistic effects in a large SLE cohort in Korea. Methods Patients with SLE were enrolled and followed from 1998 to 2014 in the Hanyang BAE Lupus cohort, and damage was measured annually according to the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI). AVN was confirmed by imaging study if patients had symptoms. To determine risk factors for AVN, clinical, laboratory and therapeutic variables were analyzed by logistic regression. Relative excess risk due to interaction (RERI), attributable proportion (AP), and synergy index (S) were calculated to measure interactions between significant variables. Results Among 1219 SLE patients, symptomatic AVN was the most common type of musculoskeletal damage (10.8%, n = 132). SLE patients with AVN showed an earlier onset age, demonstrated AVN more commonly in conjunction with certain other clinical manifestations such as renal and neuropsychiatric disorders, and received significantly higher total cumulative corticosteroid dose and immunosuppressive agents than did patients without AVN. However, in multivariable analysis, only two variables including use of a cumulative corticosteroid dose greater than 20 g (odds ratio (OR) 3.62, p = 0.015) and use of immunosuppressants including cyclophosphamide or mycophenolate mofetil (OR 4.51, p < 0.001) remained as significant risk factors for AVN. Patients with cumulative corticosteroid dose > 20 g and immunosuppressant use had a 15.44-fold increased risk for AVN, compared with patients without these risk factors ( p < 0.001). RERI, AP and S, which define the strength of interactions between two risk factors, were 9.01 (95% confidence interval (CI) 1.30–16.73), 0.58 (95% CI 0.36–0.81) and 2.66 (95% CI 1.42–4.99), respectively, supporting the presence of synergistic interactions in the development of symptomatic AVN in our Korean lupus cohort. Conclusions An individual risk assessment for AVN development should be made prior to and during treatment for SLE, especially in patients with high-dose corticosteroid and immunosuppressant use regardless of clinical manifestations and disease activity.
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Abazov VM, Abbott B, Acharya BS, Adams M, Adams T, Agnew JP, Alexeev GD, Alkhazov G, Alton A, Askew A, Atkins S, Augsten K, Aushev V, Aushev Y, Avila C, Badaud F, Bagby L, Baldin B, Bandurin DV, Banerjee S, Barberis E, Baringer P, Bartlett JF, Bassler U, Bazterra V, Bean A, Begalli M, Bellantoni L, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bhat PC, Bhatia S, Bhatnagar V, Blazey G, Blessing S, Bloom K, Boehnlein A, Boline D, Boos EE, Borissov G, Borysova M, Brandt A, Brandt O, Brochmann M, Brock R, Bross A, Brown D, Bu XB, Buehler M, Buescher V, Bunichev V, Burdin S, Buszello CP, Camacho-Pérez E, Casey BCK, Castilla-Valdez H, Caughron S, Chakrabarti S, Chan KM, Chandra A, Chapon E, Chen G, Cho SW, Choi S, Choudhary B, Cihangir S, Claes D, Clutter J, Cooke M, Cooper WE, Corcoran M, Couderc F, Cousinou MC, Cuth J, Cutts D, Das A, Davies G, de Jong SJ, De La Cruz-Burelo E, Déliot F, Demina R, Denisov D, Denisov SP, Desai S, Deterre C, DeVaughan K, Diehl HT, Diesburg M, Ding PF, Dominguez A, Drutskoy A, Dubey A, Dudko LV, Duperrin A, Dutt S, Eads M, Edmunds D, Ellison J, Elvira VD, Enari Y, Evans H, Evdokimov A, Evdokimov VN, Fauré A, Feng L, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk HE, Fortner M, Fox H, Franc J, Fuess S, Garbincius PH, Garcia-Bellido A, García-González JA, Gavrilov V, Geng W, Gerber CE, Gershtein Y, Ginther G, Gogota O, Golovanov G, Grannis PD, Greder S, Greenlee H, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grünendahl S, Grünewald MW, Guillemin T, Gutierrez G, Gutierrez P, Haley J, Han L, Harder K, Harel A, Hauptman JM, Hays J, Head T, Hebbeker T, Hedin D, Hegab H, Heinson AP, Heintz U, Hensel C, Heredia-De La Cruz I, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hoang T, Hobbs JD, Hoeneisen B, Hogan J, Hohlfeld M, Holzbauer JL, Howley I, Hubacek Z, Hynek V, Iashvili I, Ilchenko Y, Illingworth R, Ito AS, Jabeen S, Jaffré M, Jayasinghe A, Jeong MS, Jesik R, Jiang P, Johns K, Johnson E, Johnson M, Jonckheere A, Jonsson P, Joshi J, Jung AW, Juste A, Kajfasz E, Karmanov D, Katsanos I, Kaur M, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YN, Kiselevich I, Kohli JM, Kozelov AV, Kraus J, Kumar A, Kupco A, Kurča T, Kuzmin VA, Lammers S, Lebrun P, Lee HS, Lee SW, Lee WM, Lei X, Lellouch J, Li D, Li H, Li L, Li QZ, Lim JK, Lincoln D, Linnemann J, Lipaev VV, Lipton R, Liu H, Liu Y, Lobodenko A, Lokajicek M, Lopes de Sa R, Luna-Garcia R, Lyon AL, Maciel AKA, Madar R, Magaña-Villalba R, Malik S, Malyshev VL, Mansour J, Martínez-Ortega J, McCarthy R, McGivern CL, Meijer MM, Melnitchouk A, Menezes D, Mercadante PG, Merkin M, Meyer A, Meyer J, Miconi F, Mondal NK, Mulhearn M, Nagy E, Narain M, Nayyar R, Neal HA, Negret JP, Neustroev P, Nguyen HT, Nunnemann T, Orduna J, Osman N, Pal A, Parashar N, Parihar V, Park SK, Partridge R, Parua N, Patwa A, Penning B, Perfilov M, Peters Y, Petridis K, Petrillo G, Pétroff P, Pleier MA, Podstavkov VM, Popov AV, Prewitt M, Price D, Prokopenko N, Qian J, Quadt A, Quinn B, Ratoff PN, Razumov I, Ripp-Baudot I, Rizatdinova F, Rominsky M, Ross A, Royon C, Rubinov P, Ruchti R, Sajot G, Sánchez-Hernández A, Sanders MP, Santos AS, Savage G, Savitskyi M, Sawyer L, Scanlon T, Schamberger RD, Scheglov Y, Schellman H, Schott M, Schwanenberger C, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shary V, Shaw S, Shchukin AA, Shkola O, Simak V, Skubic P, Slattery P, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Soustruznik K, Stark J, Stefaniuk N, Stoyanova DA, Strauss M, Suter L, Svoisky P, Titov M, Tokmenin VV, Tsai YT, Tsybychev D, Tuchming B, Tully C, Uvarov L, Uvarov S, Uzunyan S, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Verkheev AY, Vertogradov LS, Verzocchi M, Vesterinen M, Vilanova D, Vokac P, Wahl HD, Wang C, Wang MHLS, Warchol J, Watts G, Wayne M, Weichert J, Welty-Rieger L, Williams MRJ, Wilson GW, Wobisch M, Wood DR, Wyatt TR, Xiang Y, Xie Y, Yamada R, Yang S, Yasuda T, Yatsunenko YA, Ye W, Ye Z, Yin H, Yip K, Youn SW, Yu JM, Zennamo J, Zhao TG, Zhou B, Zhu J, Zielinski M, Zieminska D, Zivkovic L. Measurement of the Effective Weak Mixing Angle in pp[over ¯]→Z/γ^{*}→ℓ^{+}ℓ^{-} Events. PHYSICAL REVIEW LETTERS 2018; 120:241802. [PMID: 29956986 DOI: 10.1103/physrevlett.120.241802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Indexed: 06/08/2023]
Abstract
We present a measurement of the effective weak mixing angle parameter sin^{2}θ_{eff}^{ℓ} in pp[over ¯]→Z/γ^{*}→μ^{+}μ^{-} events at a center-of-mass energy of 1.96 TeV, collected by the D0 detector at the Fermilab Tevatron Collider and corresponding to 8.6 fb^{-1} of integrated luminosity. The measured value of sin^{2}θ_{eff}^{ℓ}[μμ]=0.23016±0.00064 is further combined with the result from the D0 measurement in pp[over ¯]→Z/γ^{*}→e^{+}e^{-} events, resulting in sin^{2}θ_{eff}^{ℓ}[comb]=0.23095±0.00040. This combined result is the most precise measurement from a single experiment at a hadron collider and is the most precise determination using the coupling of the Z/γ^{*} to light quarks.
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Aaltonen T, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Bae T, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bedeschi F, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Bromberg C, Brucken E, Budagov J, Budd HS, Burkett K, Busetto G, Bussey P, Butti P, Buzatu A, Calamba A, Camarda S, Campanelli M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Cho K, Chokheli D, Clark A, Clarke C, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Cremonesi M, Cruz D, Cuevas J, Culbertson R, d'Ascenzo N, Datta M, de Barbaro P, Demortier L, Deninno M, D'Errico M, Devoto F, Di Canto A, Di Ruzza B, Dittmann JR, Donati S, D'Onofrio M, Dorigo M, Driutti A, Ebina K, Edgar R, Elagin A, Erbacher R, Errede S, Esham B, Farrington S, Fernández Ramos JP, Field R, Flanagan G, Forrest R, Franklin M, Freeman JC, Frisch H, Funakoshi Y, Galloni C, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Glagolev V, Glenzinski D, Gold M, Goldin D, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González López O, Gorelov I, Goshaw AT, Goulianos K, Gramellini E, Grosso-Pilcher C, Guimaraes da Costa J, Hahn SR, Han JY, Happacher F, Hara K, Hare M, Harr RF, Harrington-Taber T, Hatakeyama K, Hays C, Heinrich J, Herndon M, Hocker A, Hong Z, Hopkins W, Hou S, Hughes RE, Husemann U, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jindariani S, Jones M, Joo KK, Jun SY, Junk TR, Kambeitz M, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SH, Kim SB, Kim YJ, Kim YK, Kimura N, Kirby M, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Kruse M, Kuhr T, Kurata M, Laasanen AT, Lammel S, Lancaster M, Lannon K, Latino G, Lee HS, Lee JS, Leo S, Leone S, Lewis JD, Limosani A, Lipeles E, Lister A, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lucà A, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maestro P, Malik S, Manca G, Manousakis-Katsikakis A, Marchese L, Margaroli F, Marino P, Matera K, Mattson ME, Mazzacane A, Mazzanti P, McNulty R, Mehta A, Mehtala P, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Moon CS, Moore R, Morello MJ, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Nigmanov T, Nodulman L, Noh SY, Norniella O, Oakes L, Oh SH, Oh YD, Okusawa T, Orava R, Ortolan L, Pagliarone C, Palencia E, Palni P, Papadimitriou V, Parker W, Pauletta G, Paulini M, Paus C, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Poprocki S, Potamianos K, Pranko A, Prokoshin F, Ptohos F, Punzi G, Redondo Fernández I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodriguez T, Rolli S, Ronzani M, Roser R, Rosner JL, Ruffini F, Ruiz A, Russ J, Rusu V, Sakumoto WK, Sakurai Y, Santi L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt EE, Schwarz T, Scodellaro L, Scuri F, Seidel S, Seiya Y, Semenov A, Sforza F, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shochet M, Shreyber-Tecker I, Simonenko A, Sliwa K, Smith JR, Snider FD, Song H, Sorin V, St Denis R, Stancari M, Stentz D, Strologas J, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thomson E, Thukral V, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Ukegawa F, Uozumi S, Vázquez F, Velev G, Vellidis C, Vernieri C, Vidal M, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wallny R, Wang SM, Waters D, Wester WC, Whiteson D, Wicklund AB, Wilbur S, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfmeister H, Wright T, Wu X, Wu Z, Yamamoto K, Yamato D, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Zanetti AM, Zeng Y, Zhou C, Zucchelli S. Search for the Exotic Meson X(5568) with the Collider Detector at Fermilab. PHYSICAL REVIEW LETTERS 2018; 120:202006. [PMID: 29864341 DOI: 10.1103/physrevlett.120.202006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 03/05/2018] [Indexed: 06/08/2023]
Abstract
A search for the exotic meson X(5568) decaying into the B_{s}^{0}π^{±} final state is performed using data corresponding to 9.6 fb^{-1} from pp[over ¯] collisions at sqrt[s]=1960 GeV recorded by the Collider Detector at Fermilab. No evidence for this state is found and an upper limit of 6.7% at the 95% confidence level is set on the fraction of B_{s}^{0} produced through the X(5568)→B_{s}^{0}π^{±} process.
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Kohri H, Shiu SH, Chang WC, Yanai Y, Ahn DS, Ahn JK, Chen JY, Daté S, Ejiri H, Fujimura H, Fujiwara M, Fukui S, Gohn W, Hicks K, Hosaka A, Hotta T, Hwang SH, Imai K, Ishikawa T, Joo K, Kato Y, Kon Y, Lee HS, Maeda Y, Mibe T, Miyabe M, Morino Y, Muramatsu N, Nakano T, Nakatsugawa Y, Nam SI, Niiyama M, Noumi H, Ohashi Y, Ohta T, Oka M, Parker JD, Rangacharyulu C, Ryu SY, Sawada T, Shimizu H, Strokovsky EA, Sugaya Y, Sumihama M, Tsunemi T, Uchida M, Ungaro M, Wang SY, Yosoi M. Differential Cross Section and Photon-Beam Asymmetry for the γ[over →]p → π^{-}Δ^{++}(1232) Reaction at Forward π^{-} Angles for E_{γ}=1.5-2.95 GeV. PHYSICAL REVIEW LETTERS 2018; 120:202004. [PMID: 29864366 DOI: 10.1103/physrevlett.120.202004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/11/2018] [Indexed: 06/08/2023]
Abstract
Differential cross sections and photon-beam asymmetries for the γ[over →]p→π^{-}Δ^{++}(1232) reaction have been measured for 0.7<cosθ_{π}^{c.m.}<1 and E_{γ}=1.5-2.95 GeV at SPring-8/LEPS. The first-ever high statistics cross-section data are obtained in this kinematical region, and the asymmetry data for 1.5<E_{γ}(GeV)<2.8 are obtained for the first time. This reaction has a unique feature for studying the production mechanisms of a pure uu[over ¯] quark pair in the final state from the proton. Although there is no distinct peak structure in the cross sections, a non-negligible excess over the theoretical predictions is observed at E_{γ}=1.5-1.8 GeV. The asymmetries are found to be negative in most of the present kinematical regions, suggesting the dominance of π exchange in the t channel. The negative asymmetries at forward meson production angles are different from the asymmetries previously measured for the photoproduction reactions producing a dd[over ¯] or an ss[over ¯] quark pair in the final state. Advanced theoretical models introducing nucleon resonances and additional unnatural-parity exchanges are needed to reproduce the present data.
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Lee HS, Heo HA, Park SH, Lee W, Pyo SW. Influence of human parathyroid hormone during orthodontic tooth movement and relapse in the osteoporotic rat model: A preliminary study. Orthod Craniofac Res 2018; 21:125-131. [PMID: 29671936 DOI: 10.1111/ocr.12226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2018] [Indexed: 02/28/2024]
Abstract
OBJECTIVE To investigate the effects of parathyroid hormone (PTH) on tooth movement in ovariectomized (OVX) rats by comparing the tooth movement distance and relapse and by examining the alveolar bone microstructure. MATERIALS AND METHODS Thirty 8-week-old female rats were classified into 3 groups: sham-operated, OVX and ovariectomized rats injected with PTH (PTH). Eight weeks later, a closed-coil spring appliance was placed between the maxillary incisor and the first molar and then activated with 50 cN of force. During tooth movement, 30 μg/kg of PTH was administered 3 times per week in the PTH group. Tooth movement distances were measured weekly. Five rats in each group were killed after 3 weeks for microcomputerized tomographic analysis, and the remaining 5 rats in each group were killed at an additional 3 weeks after the removal of the appliance to measure relapsed distance. RESULTS The OVX group showed significantly greater tooth movement compared to those in the other 2 groups at 2 and 3 weeks (P < .05). The relapse distance and relapse percentage for the OVX group were higher; however, it did not differ significantly from the PTH group. On micro-CT analysis, bone volume/tissue volume ratio and bone mineral density in the PTH group were significantly greater than in the OVX group (P < .05). CONCLUSIONS Application of PTH did not promote tooth movement in OVX rat, however, did lead to decrease in relapse tendency. Therefore, the application of PTH during orthodontic treatment of patients with osteoporosis should be carefully considered.
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Hwang YJ, Kim N, Lee HS, Lee JB, Choi YJ, Yoon H, Shin CM, Park YS, Lee DH. Reversibility of atrophic gastritis and intestinal metaplasia after Helicobacter pylori eradication - a prospective study for up to 10 years. Aliment Pharmacol Ther 2018; 47:380-390. [PMID: 29193217 DOI: 10.1111/apt.14424] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/31/2017] [Accepted: 10/27/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Atrophic gastritis and intestinal metaplasia are premalignant conditions for gastric cancer. Their reversibility by Helicobacter pylori eradication remains controversial. AIM To evaluate the reversibility of atrophic gastritis and intestinal metaplasia by H. pylori eradication with long-term follow-up. METHODS 598 subjects were prospectively enrolled and followed for up to 10 years. They were categorised as H. pylori-negative (n = 65), H. pylori non-eradicated (n = 91), and H. pylori-eradicated (n = 442). Histological assessment was performed for antrum and corpus by Sydney classification. RESULTS Histological follow-up was performed regularly at 1, 2, 3-4 and ≥5 years, with mean follow-up of 1.07 ± 0.21, 2.29 ± 0.83, 3.93 ± 1.02, and 6.45 ± 1.28 years, respectively. Atrophic gastritis in antrum and corpus gradually and significantly (both P < .05 for all timepoints) improved only in the H. pylori-eradicated group compared to that at baseline. Significant difference in atrophic gastritis between H. pylori-eradicated and H. pylori-negative groups disappeared from 1-year follow-up. Similarly, intestinal metaplasia in antrum and corpus improved significantly (both P < .05 for all timepoints) only in the H. pylori-eradicated group in comparison with that at baseline. Significant difference in intestinal metaplasia between H. pylori-eradicated and H. pylori-negative groups disappeared from ≥5 years of follow-up in the antrum and from 3 years of follow-up in the corpus. CONCLUSION H. pylori eradication may be a preventative strategy for intestinal-type gastric cancer by regression of atrophic gastritis and intestinal metaplasia.
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Aaltonen T, Abazov VM, Abbott B, Acharya BS, Adams M, Adams T, Agnew JP, Alexeev GD, Alkhazov G, Alton A, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Askew A, Atkins S, Auerbach B, Augsten K, Aurisano A, Aushev V, Aushev Y, Avila C, Azfar F, Badaud F, Badgett W, Bae T, Bagby L, Baldin B, Bandurin DV, Banerjee S, Barbaro-Galtieri A, Barberis E, Baringer P, Barnes VE, Barnett BA, Barria P, Bartlett JF, Bartos P, Bassler U, Bauce M, Bazterra V, Bean A, Bedeschi F, Begalli M, Behari S, Bellantoni L, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Beri SB, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bhat PC, Bhatia S, Bhatnagar V, Bhatti A, Bland KR, Blazey G, Blessing S, Bloom K, Blumenfeld B, Bocci A, Bodek A, Boehnlein A, Boline D, Boos EE, Borissov G, Bortoletto D, Borysova M, Boudreau J, Boveia A, Brandt A, Brandt O, Brigliadori L, Brochmann M, Brock R, Bromberg C, Bross A, Brown D, Brucken E, Bu XB, Budagov J, Budd HS, Buehler M, Buescher V, Bunichev V, Burdin S, Burkett K, Busetto G, Bussey P, Buszello CP, Butti P, Buzatu A, Calamba A, Camacho-Pérez E, Camarda S, Campanelli M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Casal B, Casarsa M, Casey BCK, Castilla-Valdez H, Castro A, Catastini P, Caughron S, Cauz D, Cavaliere V, Cerri A, Cerrito L, Chakrabarti S, Chan KM, Chandra A, Chapelain A, Chapon E, Chen G, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Cho K, Cho SW, Choi S, Chokheli D, Choudhary B, Cihangir S, Claes D, Clark A, Clarke C, Clutter J, Convery ME, Conway J, Cooke M, Cooper WE, Corbo M, Corcoran M, Cordelli M, Couderc F, Cousinou MC, Cox CA, Cox DJ, Cremonesi M, Cruz D, Cuevas J, Culbertson R, Cuth J, Cutts D, Das A, d'Ascenzo N, Datta M, Davies G, de Barbaro P, de Jong SJ, De La Cruz-Burelo E, Déliot F, Demina R, Demortier L, Deninno M, Denisov D, Denisov SP, D'Errico M, Desai S, Deterre C, DeVaughan K, Devoto F, Di Canto A, Di Ruzza B, Diehl HT, Diesburg M, Ding PF, Dittmann JR, Dominguez A, Donati S, D'Onofrio M, Dorigo M, Driutti A, Drutskoy A, Dubey A, Dudko LV, Duperrin A, Dutt S, Eads M, Ebina K, Edgar R, Edmunds D, Elagin A, Ellison J, Elvira VD, Enari Y, Erbacher R, Errede S, Esham B, Evans H, Evdokimov A, Evdokimov VN, Farrington S, Fauré A, Feng L, Ferbel T, Fernández Ramos JP, Fiedler F, Field R, Filthaut F, Fisher W, Fisk HE, Flanagan G, Forrest R, Fortner M, Fox H, Franc J, Franklin M, Freeman JC, Frisch H, Fuess S, Funakoshi Y, Galloni C, Garbincius PH, Garcia-Bellido A, García-González JA, Garfinkel AF, Garosi P, Gavrilov V, Geng W, Gerber CE, Gerberich H, Gerchtein E, Gershtein Y, Giagu S, Giakoumopoulou V, Gibson K, Ginsburg CM, Ginther G, Giokaris N, Giromini P, Glagolev V, Glenzinski D, Gogota O, Gold M, Goldin D, Golossanov A, Golovanov G, Gomez G, Gomez-Ceballos G, Goncharov M, González López O, Gorelov I, Goshaw AT, Goulianos K, Gramellini E, Grannis PD, Greder S, Greenlee H, Grenier G, Gris P, Grivaz JF, Grohsjean A, Grosso-Pilcher C, Grünendahl S, Grünewald MW, Guillemin T, Guimaraes da Costa J, Gutierrez G, Gutierrez P, Hahn SR, Haley J, Han JY, Han L, Happacher F, Hara K, Harder K, Hare M, Harel A, Harr RF, Harrington-Taber T, Hatakeyama K, Hauptman JM, Hays C, Hays J, Head T, Hebbeker T, Hedin D, Hegab H, Heinrich J, Heinson AP, Heintz U, Hensel C, Heredia-De La Cruz I, Herndon M, Herner K, Hesketh G, Hildreth MD, Hirosky R, Hoang T, Hobbs JD, Hocker A, Hoeneisen B, Hogan J, Hohlfeld M, Holzbauer JL, Hong Z, Hopkins W, Hou S, Howley I, Hubacek Z, Hughes RE, Husemann U, Hussein M, Huston J, Hynek V, Iashvili I, Ilchenko Y, Illingworth R, Introzzi G, Iori M, Ito AS, Ivanov A, Jabeen S, Jaffré M, James E, Jang D, Jayasinghe A, Jayatilaka B, Jeon EJ, Jeong MS, Jesik R, Jiang P, Jindariani S, Johns K, Johnson E, Johnson M, Jonckheere A, Jones M, Jonsson P, Joo KK, Joshi J, Jun SY, Jung AW, Junk TR, Juste A, Kajfasz E, Kambeitz M, Kamon T, Karchin PE, Karmanov D, Kasmi A, Kato Y, Katsanos I, Kaur M, Kehoe R, Kermiche S, Ketchum W, Keung J, Khalatyan N, Khanov A, Kharchilava A, Kharzheev YN, Kilminster B, Kim DH, Kim HS, Kim JE, Kim MJ, Kim SH, Kim SB, Kim YJ, Kim YK, Kimura N, Kirby M, Kiselevich I, Kohli JM, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kozelov AV, Kraus J, Kreps M, Kroll J, Kruse M, Kuhr T, Kumar A, Kupco A, Kurata M, Kurča T, Kuzmin VA, Laasanen AT, Lammel S, Lammers S, Lancaster M, Lannon K, Latino G, Lebrun P, Lee HS, Lee HS, Lee JS, Lee SW, Lee WM, Lei X, Lellouch J, Leo S, Leone S, Lewis JD, Li D, Li H, Li L, Li QZ, Lim JK, Limosani A, Lincoln D, Linnemann J, Lipaev VV, Lipeles E, Lipton R, Lister A, Liu H, Liu Q, Liu T, Liu Y, Lobodenko A, Lockwitz S, Loginov A, Lokajicek M, Lopes de Sa R, Lucchesi D, Lucà A, Lueck J, Lujan P, Lukens P, Luna-Garcia R, Lungu G, Lyon AL, Lys J, Lysak R, Maciel AKA, Madar R, Madrak R, Maestro P, Magaña-Villalba R, Malik S, Malik S, Malyshev VL, Manca G, Manousakis-Katsikakis A, Mansour J, Marchese L, Margaroli F, Marino P, Martínez-Ortega J, Matera K, Mattson ME, Mazzacane A, Mazzanti P, McCarthy R, McGivern CL, McNulty R, Mehta A, Mehtala P, Meijer MM, Melnitchouk A, Menezes D, Mercadante PG, Merkin M, Mesropian C, Meyer A, Meyer J, Miao T, Miconi F, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondal NK, Moon CS, Moore R, Morello MJ, Mukherjee A, Mulhearn M, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nagy E, Nakano I, Napier A, Narain M, Nayyar R, Neal HA, Negret JP, Nett J, Neustroev P, Nguyen HT, Nigmanov T, Nodulman L, Noh SY, Norniella O, Nunnemann T, Oakes L, Oh SH, Oh YD, Okusawa T, Orava R, Orduna J, Ortolan L, Osman N, Pagliarone C, Pal A, Palencia E, Palni P, Papadimitriou V, Parashar N, Parihar V, Park SK, Parker W, Partridge R, Parua N, Patwa A, Pauletta G, Paulini M, Paus C, Penning B, Perfilov M, Peters Y, Petridis K, Petrillo G, Pétroff P, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pleier MA, Podstavkov VM, Pondrom L, Popov AV, Poprocki S, Potamianos K, Pranko A, Prewitt M, Price D, Prokopenko N, Prokoshin F, Ptohos F, Punzi G, Qian J, Quadt A, Quinn B, Ratoff PN, Razumov I, Redondo Fernández I, Renton P, Rescigno M, Rimondi F, Ripp-Baudot I, Ristori L, Rizatdinova F, Robson A, Rodriguez T, Rolli S, Rominsky M, Ronzani M, Roser R, Rosner JL, Ross A, Royon C, Rubinov P, Ruchti R, Ruffini F, Ruiz A, Russ J, Rusu V, Sajot G, Sakumoto WK, Sakurai Y, Sánchez-Hernández A, Sanders MP, Santi L, Santos AS, Sato K, Savage G, Saveliev V, Savitskyi M, Savoy-Navarro A, Sawyer L, Scanlon T, Schamberger RD, Scheglov Y, Schellman H, Schlabach P, Schmidt EE, Schott M, Schwanenberger C, Schwarz T, Schwienhorst R, Scodellaro L, Scuri F, Seidel S, Seiya Y, Sekaric J, Semenov A, Severini H, Sforza F, Shabalina E, Shalhout SZ, Shary V, Shaw S, Shchukin AA, Shears T, Shepard PF, Shimojima M, Shkola O, Shochet M, Shreyber-Tecker I, Simak V, Simonenko A, Skubic P, Slattery P, Sliwa K, Smith JR, Snider FD, Snow GR, Snow J, Snyder S, Söldner-Rembold S, Song H, Sonnenschein L, Sorin V, Soustruznik K, St Denis R, Stancari M, Stark J, Stefaniuk N, Stentz D, Stoyanova DA, Strauss M, Strologas J, Sudo Y, Sukhanov A, Suslov I, Suter L, Svoisky P, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thomson E, Thukral V, Titov M, Toback D, Tokar S, Tokmenin VV, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tsai YT, Tsybychev D, Tuchming B, Tully C, Ukegawa F, Uozumi S, Uvarov L, Uvarov S, Uzunyan S, Van Kooten R, van Leeuwen WM, Varelas N, Varnes EW, Vasilyev IA, Vázquez F, Velev G, Vellidis C, Verkheev AY, Vernieri C, Vertogradov LS, Verzocchi M, Vesterinen M, Vidal M, Vilanova D, Vilar R, Vizán J, Vogel M, Vokac P, Volpi G, Wagner P, Wahl HD, Wallny R, Wang MHLS, Wang SM, Warchol J, Waters D, Watts G, Wayne M, Weichert J, Welty-Rieger L, Wester WC, Whiteson D, Wicklund AB, Wilbur S, Williams HH, Williams MRJ, Wilson GW, Wilson JS, Wilson P, Winer BL, Wittich P, Wobisch M, Wolbers S, Wolfmeister H, Wood DR, Wright T, Wu X, Wu Z, Wyatt TR, Xie Y, Yamada R, Yamamoto K, Yamato D, Yang S, Yang T, Yang UK, Yang YC, Yao WM, Yasuda T, Yatsunenko YA, Ye W, Ye Z, Yeh GP, Yi K, Yin H, Yip K, Yoh J, Yorita K, Yoshida T, Youn SW, Yu GB, Yu I, Yu JM, Zanetti AM, Zeng Y, Zennamo J, Zhao TG, Zhou B, Zhou C, Zhu J, Zielinski M, Zieminska D, Zivkovic L, Zucchelli S. Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron. PHYSICAL REVIEW LETTERS 2018; 120:042001. [PMID: 29437406 DOI: 10.1103/physrevlett.120.042001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Indexed: 06/08/2023]
Abstract
The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of sqrt[s]=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is A_{FB}^{tt[over ¯]}=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.
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Yoon JH, Gwak GY, Woo GH, Kim TH, Kim KA, Kim CY, Lee HS. Augmentation of Butyrate-induced Differentiation of Human Hepatocyte by Cyclin E Over-expression. Int J Artif Organs 2018; 28:44-50. [PMID: 15742309 DOI: 10.1177/039139880502800108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In mammalian cells, cellular differentiation into specific cell types is usually preceded by growth arrest. On the other hand, the induced differentiation may also be preceded by an enhanced G1–S transition of the cell cycle prior to the growth arrest. This suggests that an early increase in proliferation is in some way a prerequisite for subsequent differentiation. We therefore attempted to assess whether we could produce human hepatocytes with further differentiated functions by promoting G1-S transition in a butyrate-treated human hepatocyte cell line. A cyclin E-over-expressing cell line was established by transfecting human cyclin E cDNA. Upon butyrate treatment, the cyclin E-over-expressing cells exhibited a significantly increased albumin-secreting and ammonia-detoxifying capacity when compared to the control cells. In particular, the ornithine transcarbamylase activity was increased in these cells. Collectively, these results implicate that the cyclin E over-expression may augment the hepatocyte-specific functions during the butyrate-induced differentiation process of human hepatocytes by enhancing G1-S cell cycle transition.
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Shin JS, Sun K, Son HS, Kim HM, Kim KT, Ahn SS, Park SY, Rho YR, Lee HS, Min BG. A Preclinical Cadaver Fitting Study of Implantable Biventricular Assist Device - AnyHeart™. Int J Artif Organs 2018; 27:495-500. [PMID: 15293355 DOI: 10.1177/039139880402700608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A multifunctional, Korean-made artificial heart (AnyHeart™) was developed, and prior to its clinical application, a cadaver-fitting study was performed. The study proposed to determine the optimal cannulation approach, implantation technique and route of the cannula to minimize the organ compression of AnyHeart™. The anatomical feasibility and a variety of surgical techniques were evaluated using ten preserved, human cadavers. Implanting AnyHeart™ with ease is possible using various approaches, including a median sternotomy, and a right or left lateral thoracotomy. The lateral thoracotomy approach is shown to be safe and reproducible, especially in patients who have already undergone an operation that used a median sternotomy. The results of this study will guide improvements in the designs of cannulae and AnyHeart™ for future clinical applications.
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Park H, Park JB, Kim JH, Lee KW, Lee HS, Kim GS, Shin DY, Oh SH, Jin SM, Kim SJ. Simultaneous Subtotal Pancreatectomy and Streptozotocin Injection for Diabetes Modeling in Cynomolgus Monkeys. Transplant Proc 2018; 49:1142-1149. [PMID: 28583545 DOI: 10.1016/j.transproceed.2017.03.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND In an experimental animal model of islet transplantation, stable induction of insulin-dependent diabetes mellitus (IDDM) and islet isolation from donor pancreas are essential. Total pancreatectomy for IDDM induction and islet procurement in nonhuman primates leads to unwanted loss of exocrine function and may lead to morbidities associated with IDDM. METHODS IDDM induction with streptozotocin (STZ) is associated with drug toxicity of STZ and necessitates the killing of another animal for islet procurement. In this study, we performed a subtotal pancreatectomy combined with reduced STZ injection to induce IDDM and procure islets in a nonhuman primate model. RESULTS Twelve cynomolgus monkeys received low-dose STZ injections (60 mg/kg) simultaneously with subtotal pancreatectomy. All monkeys recovered from the procedure without complications. IDDM was induced in the animals. 57,691 ± 16,050 islets were isolated from the resected pancreas and transplanted into other monkeys. CONCLUSIONS Simultaneous subtotal pancreatectomy and low-dose STZ injection represent an effective and safe method to create an animal model of insulin dependence diabetes, while at the same time providing sufficient amounts of fresh islet cells for allotransplantation without requiring killing of additional animals.
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Kim HA, Lee HS, Shin TH, Jung JY, Baek WY, Park HJ, Lee G, Paik MJ, Suh CH. Polyamine patterns in plasma of patients with systemic lupus erythematosus and fever. Lupus 2018; 27:930-938. [PMID: 29308729 DOI: 10.1177/0961203317751860] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease with various clinical manifestations and serologic markers. In this study, we analyzed nine polyamine (PA) profiles of plasma from patients with SLE and healthy controls (HCs), and the relationship between the PA profiles and disease activity. PA alterations in plasma of 44 patients with SLE and fever were investigated using gas chromatography mass spectrometry (GC-MS) in selected ion monitoring mode using N-ethoxycarbonyl/ N-pentafluoropropionyl derivatives, and compared with those of 43 HCs. Patients with SLE and HCs showed differences in five of nine PA profiles. Among five changed PA levels, four PAs, namely N1-acetylcadaverine, spermidine, N1-acetylspermidine, and spermine, were dramatically decreased. However, the level of cadaverine was increased in patients with SLE. In the partial correlation with PA profiles and disease activity markers of SLE, several disease activity markers and nutritional markers were correlated with cadaverine, spermidine, and N 8-acetylspermidine. Thus, our results provide a comprehensive understanding of the relationship between PA metabolomics and disease activity markers in patients with SLE.
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Kim SJ, Paik DJ, Lee JS, Lee HS, Seo JT, Jeong MS, Lee JH, Park DW, Han S, Lee YK, Lee KH, Lee IH, So KA, Kim SA, Kim J, Kim TJ. Effects of infections with five sexually transmitted pathogens on sperm quality. Clin Exp Reprod Med 2017; 44:207-213. [PMID: 29376018 PMCID: PMC5783918 DOI: 10.5653/cerm.2017.44.4.207] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 11/15/2017] [Accepted: 11/29/2017] [Indexed: 12/15/2022] Open
Abstract
Objective This study investigated the prevalence of infections with human papillomavirus, Chlamydia trachomatis, Ureaplasma urealyticum, Mycoplasma hominis, and Mycoplasma genitalium in the semen of Korean infertile couples and their associations with sperm quality. Methods Semen specimens were collected from 400 men who underwent a fertility evaluation. Infection with above five pathogens was assessed in each specimen. Sperm quality was compared in the pathogen-infected group and the non-infected group. Results The infection rates of human papillomavirus, C. trachomatis, U. urealyticum, M. hominis, and M. genitalium in the study subjects were 1.57%, 0.79%, 16.80%, 4.46%, and 1.31%, respectively. The rate of morphological normality in the U. urealyticum-infected group was significantly lower than in those not infected with U. urealyticum. In a subgroup analysis of normozoospermic samples, the semen volume and the total sperm count in the pathogen-infected group were significantly lower than in the non-infected group. Conclusion Our results suggest that infection with U. urealyticum alone and any of the five sexually transmitted infections are likely to affect sperm morphology and semen volume, respectively.
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Yang SY, Kim YH, Byun MK, Kim HJ, Ahn CM, Kim SH, Lee HS, Park HJ. Repeated Measurement of Fractional Exhaled Nitric Oxide Is Not Essential for Asthma Screening. J Investig Allergol Clin Immunol 2017; 28:98-105. [PMID: 29180311 DOI: 10.18176/jiaci.0215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND AND OBJETIVE Older guidelines recommend that fractional exhaled nitric oxide (FeNO) should be checked more than twice during the same session to confirm an asthma diagnosis. Recent studies show the excellent reproducibility of FeNO measurements. Objetive: We aimed to determine whether repeated FeNO measurements during the same session are necessary for asthma screening. MATERIAL AND METHODS We retrospectively reviewed the electronic medical records of adult outpatients who visited the respiratory medicine department for diagnosis of asthma and assessed FeNO measurements obtained from June 2016 to July 2017. RESULTS Of the 132 patients enrolled, 79 (59.8%) were diagnosed with asthma. Repeated FeNO measurements taken during the same session showed high reproducibility (intraclass correlation coefficient >0.9; P<.001) and a strong correlation (Pearson coefficient >0.9; P<.001), although reproducibility and correlation were slightly weaker in patients with low FeNO values. The value of repeated measurement was not significant; however, the second FeNO measurement was significantly higher than the first measurement in patients with the worst and best lung function. The predictive power of the first measurement of FeNO (sensitivity, 80.5%; specificity, 85.1%) was not inferior to the second (sensitivity, 76.6%; specificity 85.1%). The same was true of the geometric mean of the two. CONCLUSIONS Repeated FeNO measurement during the same session is not essential for asthma screening in cases where the first acceptable FeNO measurement is performed using the proper method.
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Yoon HY, Lee HS, Kim IH, Hwang SH. Post-operative corticosteroid irrigation for chronic rhinosinusitis after endoscopic sinus surgery: A meta-analysis. Clin Otolaryngol 2017; 43:525-532. [PMID: 29054113 DOI: 10.1111/coa.13015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Recently, topical steroid therapy delivery using high-volume sinonasal irrigations has been used more frequently, following endoscopic sinus surgery (ESS), to improve drug delivery into the paranasal sinuses. OBJECTIVE The goal of this study was to perform a systematic review with meta-analysis of the efficacy of steroid nasal irrigation on post-operative management of Chronic rhinosinusitis (CRS) following ESS. METHODS Five databases (PubMed, SCOPUS, Embase, Web of Science, and the Cochrane database) from inception to March 2017 were independently reviewed by two researchers. Studies that scored CRS endoscopic findings and CRS-related quality of life (QOL) post-operatively before and after steroid nasal irrigation and that compared the effects of steroid nasal irrigation (treatment groups) with saline alone irrigation (control group) were included in the analysis. RESULTS Twelve studies (n = 360) met inclusion criteria. Steroid nasal irrigation significantly reduced the endoscopic score compared with pre-treatment values and also improved QOL. Adverse effects following steroid nasal irrigation such as increased intraocular pressure (IOP) and hypothalamus-pituitary-adrenal (HPA) axis disturbance were not significant. However, compared with saline alone irrigation, the additional effects of steroid irrigation were not significant in the view of the endoscopic score and disease-specific QOL. CONCLUSION Although steroid nasal irrigation would not induce adverse effects related to systemic steroid absorption, the beneficial effects of additional steroids in saline irrigation were ambiguous in regard to endoscopic score and CRS-related QOL improvement compared with saline alone irrigation. However, further clinical trials with robust research methodologies should be conducted to confirm the results of this study.
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Lee HS, Park CW, Lee JS, Seo JT. Hypogonadism Makes Dyslipidemia in Klinefelter's Syndrome. J Korean Med Sci 2017; 32:1848-1851. [PMID: 28960039 PMCID: PMC5639067 DOI: 10.3346/jkms.2017.32.11.1848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 08/13/2017] [Indexed: 11/20/2022] Open
Abstract
Klinefelter's syndrome (KS) is a genetic syndrome that presents with hypogonadism and is associated with metabolic syndrome. Patients demonstrating hypogonadism show a greater prevalence of metabolic syndrome due to changes in body composition. We aimed to determine the association between KS and dyslipidemia. The KS group comprised 55 patients who visited the infertility clinic for an infertility evaluation and were confirmed as having a diagnosis of KS. The control group comprised 120 patients who visited the clinic for health screening. Patient characteristics were compared between the two groups with respect to height, weight, body mass index (BMI), testosterone, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, and triglyceride (TG) levels. Height and weight were significantly greater in patients belonging to the KS group, but no statistically significant difference was found with respect to the BMI. Testosterone levels in patients belonging to the KS group were significantly lower compared to the control group (2.4 ± 2.6 vs. 5.2 ± 1.8 ng/mL, P < 0.001). Compared to the control group, TG levels in patients belonging to the KS group were increased (134.9 ± 127.8 vs. 187.9 ± 192.1 mg/dL, P = 0.004) and HDL cholesterol was significantly decreased (51.2 ± 22.0 vs. 44.0 ± 9.5 mg/dL, P = 0.009). LDL cholesterol and total cholesterol were not significantly different between the two groups (P = 0.076 and P = 0.256, respectively). Significant differences were noted between patients belonging to the KS group and normal control group with respect to elevated TG and decreased HDL cholesterol levels.
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Shin DY, Lee JH, Park S, Lee JO, Moon JH, Ahn JS, Choi Y, Song IC, Shin HJ, Lee WS, Lee HS, Yoon SS. Role of thymoglobulin in matched sibling allogeneic hematopoietic stem cell transplantation with busulfan and fludarabine conditioning in myeloid malignanicies. Bone Marrow Transplant 2017; 53:207-212. [PMID: 29084202 DOI: 10.1038/bmt.2017.240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/15/2017] [Accepted: 09/18/2017] [Indexed: 12/22/2022]
Abstract
In vivo T-cell depletion using anti-thymocyte globulin (ATG) is widely used in allogeneic hematopoietic stem cell transplantation (HSCT) for prophylaxis of GvHD. We investigated the influence of thymoglobulin dose (an ATG) on GvHD following matched sibling donor (MSD) HSCT with a busulfan and fludarabine preparative regimen. Medical records of 180 patients who received MSD HSCT with a conditioning regimen of busulfan, fludarabine, and ATG (BuFluATG) were reviewed retrospectively. The median age was 53 years (range 18-68). Initial diagnoses were acute myeloid leukemia (73.3%) and myelodysplastic syndrome (26.7%). Forty-four and 68 patients (24.4 and 37.7%) experienced acute and chronic GvHD of any grade, respectively. High-dose (⩾4.5 mg/kg) ATG was independently associated with decreased risk of acute GvHD (hazard ratio=0.36, 95% confidence interval (CI): 0.15-0.84, P=0.019) compared to low-dose ATG (<4.5 mg/kg). Although ATG dose was associated with the risk of acute GvHD, it was not associated with the risk of chronic GvHD in our study. A higher dose (⩾4.5 mg/kg) of ATG decreases the risk of acute GvHD but had no significant impact on disease-free survival in MSD HSCT patients conditioned with BuFluATG. The optimal dose of ATG should be further investigated in a large prospective study context.
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Lee HS, Min BS, Na MK. N-acetyldopamine dimers from the edible grasshopper Oxya chinensis sinousa. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lee JH, Lee HS. Nutrient intake and urinary incontinence in Korean women: A propensity score-matched analysis from the Korea National Health and Nutrition Examination Survey data. Int J Urol 2017; 24:793-797. [PMID: 28845528 DOI: 10.1111/iju.13439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 07/27/2017] [Indexed: 02/04/2023]
Abstract
OBJECTIVES To evaluate the relationship between dietary nutrients and female urinary incontinence using nationally representative data from Korea. METHODS We included 8090 women aged >20 years who had participated in the Korea National Health and Nutrition Examination Survey IV. We carried out a propensity-matched study by identifying women with urinary incontinence. Women without urinary incontinence, matched for age, body mass index, menopause, delivery history, hypertension, diabetes, hypercholesterolemia, stroke, asthma, chronic obstructive pulmonary disease and amount of total food intake, were included as a control group at a 2:1 ratio (661 women with urinary incontinence; 1322 women without urinary incontinence). Data were analyzed using the χ2 -test, Mann-Whitney test, Fisher's exact test and logistic regression. RESULTS Following propensity score matching, 661 women with urinary incontinence and 1322 women without urinary incontinence were included; the confounders were evenly dispersed and did not differ significantly between the groups. There was no significant difference in the intake of water, fat, protein, calcium, phosphorus, iron, sodium, potassium, vitamin A, carotene, riboflavin, niacin and vitamin C. However, carbohydrate intake was significantly higher in the urinary incontinence group than in the control group (median [interquartile range]: 282.3 g/day [214.7; 352.0] vs 267.7 g/day [212.6; 339.1]; P = 0.041). CONCLUSION High carbohydrate intake seems to be significantly related to female urinary incontinence in the Korean population.
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Wang TT, Zhou ZQ, Wang S, Ji XW, Wu B, Sun LY, Wen JF, Kang DG, Lee HS, Cho KW, Jin SN. Mechanisms of vasorelaxation induced by total flavonoids of Euphorbia humifusa in rat aorta. JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY : AN OFFICIAL JOURNAL OF THE POLISH PHYSIOLOGICAL SOCIETY 2017; 68:619-628. [PMID: 29151079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
Euphorbia humifusa Willd. (EH), rich in flavonoids, has long been used for the treatment of bacillary dysentery and enteritis in China, and is known to have antioxidant, hypotensive and hypolipidemic properties. However, the vasorelaxant effect of total flavonoids of EH (TFEH) and action mechanisms are not clearly defined yet. The aim of the present study was to investigate the effects of TFEH on the vascular tension and its underlying mechanisms. Experiments were performed in rat thoracic aorta using the organ bath system. TFEH (0.01 - 100 μg/ml) caused a concentration-dependent vasorelaxation, which was dependent on a functional endothelium, and were significantly attenuated by inhibitors of endothelial NO synthase, its upstream signaling pathway, PI3K/Akt, and soluble guanylate cyclase, but not by blockade of KCa channel, KATP channel, cyclooxygenase, muscarinic and β-adrenergic receptors. Extracellular Ca2+ depletion, and pre-treatment with modulators of the store-operated Ca2+ entry channels, Gd3+ and 2-aminoethyl diphenylborinate, significantly attenuated the TFEH-induced vasorelaxation. Our findings suggest that TFEH elicit vasorelaxation via endothelium-dependent NO-cGMP pathway through activation of PI3K/Akt- and Ca2+-eNOS-NO signaling. Further, it is suggested that TFEH-induced activation of the NO-soluble guanylate cyclase-cGMP-protein kinase G signaling relaxes vascular smooth muscle cells through an inhibition of the L-type Ca2+ channel activity.
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Park YS, Lee SH, Lim CK, Choi HW, An JH, Park CW, Lee HS, Lee JS, Seo JT. Paternal age as an independent factor does not affect embryo quality and pregnancy outcomes of testicular sperm extraction-intracytoplasmic sperm injection in azoospermia. Andrologia 2017; 50. [PMID: 28703337 DOI: 10.1111/and.12864] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2017] [Indexed: 12/25/2022] Open
Abstract
This study was performed to evaluate the independent influence of paternal age affecting embryo development and pregnancy using testicular sperm extraction (TESE)-intracytoplasmic sperm injection (ICSI) in obstructive azoospermia (OA) and nonobstructive azoospermia (NOA). Paternal patients were divided into the following groups: ≤30 years, 31-35 years, 36-40 years, 41-45 years and ≥46 years. There were no differences in the rates of fertilisation or embryo quality according to paternal and maternal age. However, clinical pregnancy and implantation rates were significantly lower between those ≥46 years of paternal age compared with other age groups. Fertilisation rate was higher in the OA than the NOA, while embryo quality, pregnancy and delivery results were similar. Clinical pregnancy and implantation rates were significantly lower for patients ≥46 years of paternal age compared with younger age groups. In conclusion, fertilisation using TESE in azoospermia was not affected by the independent influence of paternal age; however, as maternal age increased concomitantly with paternal age, rates of pregnancy and delivery differed between those with paternal age <41 years and ≥46 years. Therefore, paternal age ≥46 years old should be considered when applying TESE-ICSI in cases of azoospermia, and patients should be advised of the associated low pregnancy rates.
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Sun IO, Yoon HJ, Cho AY, Kim Y, Lee JH, Lee HS, Lee KY. A Case of Peritoneal Dialysis-Associated Peritonitis Caused by Agromyces mediolanus. Perit Dial Int 2017; 37:346-347. [PMID: 28512166 DOI: 10.3747/pdi.2016.00274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Seo JT, Lee HS, Choe JH, Lee JS. Impact of Antimicrobial Therapy on the Semen Parameters of Infertile Men With Asymptomatic Urogenital Microorganism. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2017.04.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lee HS, Lee JH. Vitamin D and Urinary Incontinence among Korean Women: a Propensity Score-matched Analysis from the 2008-2009 Korean National Health and Nutrition Examination Survey. J Korean Med Sci 2017; 32:661-665. [PMID: 28244294 PMCID: PMC5334166 DOI: 10.3346/jkms.2017.32.4.661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 12/11/2016] [Indexed: 12/18/2022] Open
Abstract
A recent study investigated the role of vitamin D in urinary incontinence (UI). However, very few data are available on this topic. Therefore, we evaluated these relationships using nationally representative data from Korea. We included 6,451 women over the age of 20 years who had participated in the Korea National Health and Nutrition Examination Survey IV. We conducted a propensity-matched study by identifying women with UI. Women without UI, matched for menopause, number of pregnancies, hypertension, diabetes, body mass index, age, stroke, asthma, and chronic obstructive pulmonary disease, were selected as a control group at a 2:1 ratio. The χ² test, t-test and logistic regression analyses were used. Following propensity score matching, 558 UI cases and 1,116 normal controls were included, and confounders (menopause, hypertension, diabetes mellitus, asthma, age, obesity, and number of pregnancies) were evenly dispersed and did not differ significantly between the groups. There was no significant difference between the mean vitamin D levels of the UI and normal groups (vitamin D: 18.4 ± 6.6 vs. 18.5 ± 7.0 ng/mL; P = 0.752). Additionally, there was no significant difference in the distribution of vitamin D levels (< 20 ng/mL, 20-30 ng/mL, > 30 ng/mL: 63.8%, 30.5%, and 5.7% in normal controls, 64.0%, 27.8%, and 8.2% in UI cases; P = 0.107). In conclusion, low serum vitamin D is not significantly and independently related to female UI after propensity score matching in representative Korean data.
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