1
|
Yim SHL, Li Y, Huang T, Lim JT, Lee HF, Chotirmall SH, Dong GH, Abisheganaden J, Wedzicha JA, Schuster SC, Horton BP, Sung JJY. Global health impacts of ambient fine particulate pollution associated with climate variability. Environ Int 2024; 186:108587. [PMID: 38579450 DOI: 10.1016/j.envint.2024.108587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 04/07/2024]
Abstract
Air pollution is a key global environmental problem raising human health concern. It is essential to comprehensively assess the long-term characteristics of air pollution and the resultant health impacts. We first assessed the global trends of fine particulate matter (PM2.5) during 1980-2020 using a monthly global PM2.5 reanalysis dataset, and evaluated their association with three types of climate variability including El Niño-Southern Oscillation, Indian Ocean Dipole and North Atlantic Oscillation. We then estimated PM2.5-attributable premature deaths using integrated exposure-response functions. Results show a significant increasing trend of ambient PM2.5 during 1980-2020 due to increases in anthropogenic emissions. Ambient PM2.5 caused a total of ∼ 135 million premature deaths globally during the four decades. Occurrence of air pollution episodes was strongly associated with climate variability, which were associated with up to 14 % increase in annual global PM2.5-attributable premature deaths.
Collapse
Affiliation(s)
- S H L Yim
- Asian School of the Environment, Nanyang Technological University, Singapore 639798, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore.
| | - Y Li
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Sha Tin 999077, Hong Kong, China
| | - T Huang
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore
| | - J T Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - H F Lee
- Department of Geography and Resource Management, The Chinese University of Hong Kong, Sha Tin 999077, Hong Kong, China
| | - S H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - G H Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - J Abisheganaden
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore; Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - J A Wedzicha
- Airways Disease Section, National Heart and Lung Institute, Imperial College London, London, UK
| | - S C Schuster
- Singapore Centre For Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - B P Horton
- Asian School of the Environment, Nanyang Technological University, Singapore 639798, Singapore; Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore
| | - J J Y Sung
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| |
Collapse
|
2
|
Kim J, Sung J, Yang D, Cho KS, Chung BH, Kim J, Kim JW. Optimal Planning Target Margin for Prostate Radiotherapy Based on Interfractional and Intrafractional Variability Assessment during 1.5T MR-Guided Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e401. [PMID: 37785341 DOI: 10.1016/j.ijrobp.2023.06.1534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) MR-guided radiotherapy (MRgRT) provides superior soft-tissue contrast over CT-based image guidance. We collected and analyzed daily pre-treatment (PRE) and real-time motion-monitoring (MM) MR images of patients receiving prostate radiotherapy to assess interfractional and intrafractional variability of prostate using two localization methods: pelvic bony anatomy (bone) and prostate during online adaptive radiotherapy (ART). MATERIALS/METHODS PRE and MM MRIs for the first five fractions of twenty prostate cancer patients who received definitive MRgRT with 1.5T MRI were collected. Using MIM software, rigid registration between PRE MRI and planning CT images based on pelvic bony anatomy and prostate reproduced bone localization and online ART, respectively. To determine interfractional setup margin (SM), prostate was delineated on all PRE MRIs registered after bone and prostate localizations by a radiation oncologist, and centroid values of prostate contours between planning CT and PRE MRIs were compared. To determine interobserver variability, another radiation oncologist, a medical physicist, and a radiotherapist contoured prostate for both localization methods. For internal margin (IM) assessment, we used MM MRIs of the five patients who had all three sets of coronal, sagittal, and axial cine images and determined the maximum contour displacement using in-house MATLAB-based software converting binary image files to 2D cine images with a superimposed grid of 1 mm spacing. RESULTS A total of 100 PRE and 25 MM MRIs were analyzed. Four hundred prostate contours were delineated on MR images registered with planning CT based on both bony anatomy and prostate. After bone localization, SM was 0.57±0.42 mm in left-right (LR), 2.45±1.98 mm in anterior-posterior (AP), and 2.28±2.08 mm in superior-inferior (SI) directions, and IO was 1.06±0.58 mm in LR, 2.32±1.08 mm in AP, and 3.30±1.85 mm in SI directions. After prostate localization, SM was 0.76±0.57 mm in LR, 1.89±1.60 mm in AP, and 2.2±1.79 mm in SI directions, and IO was 1.11±0.55 mm in LR, 2.13±1.07 mm in AP, and 3.53±1.65 mm in SI directions. Average IM was 2.12±0.86 mm, 2.24±1.07 mm, and 2.84±0.88 mm in LR, AP, and SI directions, respectively. CONCLUSION Using daily MRIs from MRgRT, we showed that movements in the SI direction were the largest source of variability in prostate definitive RT. In addition, interobserver variability was a non-negligible source of margin. Optimal PTV margin should also consider internal margin, especially in the SI direction.
Collapse
Affiliation(s)
- J Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J Sung
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - D Yang
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - K S Cho
- Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - B H Chung
- Department of Urology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| |
Collapse
|
3
|
Shen J, Rubin A, Cohen K, Hart E, Sung J, McDanal R, Roulston C, Sotomayor I, Fox K, Schleider J. Randomized evaluation of an online single-session intervention for minority stress in LGBTQ+ adolescents. Internet Interv 2023; 33:100633. [PMID: 37635950 PMCID: PMC10457524 DOI: 10.1016/j.invent.2023.100633] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/26/2023] [Accepted: 06/06/2023] [Indexed: 08/29/2023] Open
Abstract
Background LGBTQ+ youth face myriad adverse health outcomes due to minority stress, creating a need for accessible, mechanism-targeted interventions to mitigate these minority stress-related risk factors. We tested the effectiveness and acceptability of Project RISE, an online single-session intervention designed to ameliorate internalized stigma and improve other outcomes among LGBTQ+ youth. We hypothesized that youth assigned to RISE (versus a control) would report significantly reduced internalized stigma and increased identity pride at post-intervention and at two-week follow-up and would find RISE acceptable. Methods We recruited adolescents nationally through Instagram advertisements in May 2022 (N = 538; M age = 15.06, SD age = 0.97). Participants were randomly assigned to RISE or an information-only control and completed questionnaires pre-intervention, immediately post-intervention, and two weeks post-intervention. Inclusion criteria included endorsing: (1) LGBTQ+ identity, (2) age 13-16, (3) English fluency (4) Internet access, and (5) subjective negative impact of LGBTQ+ stigma. Results Relative to participants in the control condition, participants who completed RISE reported significant decreases in internalized stigma (d = -0.49) and increases in identity pride (d = 0.25) from pre- to immediately post-intervention, along with decreased internalized stigma (d = -0.26) from baseline to two-week follow-up. Participants rated both RISE and the information-only control as highly, equivalently acceptable. Conclusions RISE appears to be an acceptable and useful online SSI for LGBTQ+ adolescents, with potential to reduce internalized stigma in both the short- and longer-term. Future directions include evaluating effects of Project RISE over longer follow-ups and in conjunction with other mental health supports.
Collapse
Affiliation(s)
- J. Shen
- Department of Psychology, Stony Brook University, United States of America
| | - A. Rubin
- Department of Psychology, University of Denver, United States of America
| | - K. Cohen
- Department of Psychology, Stony Brook University, United States of America
| | - E.A. Hart
- Department of Psychology, University of Denver, United States of America
| | - J. Sung
- Department of Psychology, Stony Brook University, United States of America
| | - R. McDanal
- Department of Psychology, Stony Brook University, United States of America
| | - C. Roulston
- Department of Psychology, Stony Brook University, United States of America
| | - I. Sotomayor
- Department of Psychology, Stony Brook University, United States of America
| | - K.R. Fox
- Department of Psychology, University of Denver, United States of America
| | - J.L. Schleider
- Department of Psychology, Stony Brook University, United States of America
- Department of Medical Social Sciences, Feinberg School of Medicine, Northwestern University, United States of America
| |
Collapse
|
4
|
Sung J, Musinguzi A, Kadota JL, Baik Y, Nabunje J, Welishe F, Bishop O, Berger CA, Katahoire A, Nakitende A, Nakimuli J, Akello L, Kasidi JR, Kunihira Tinka L, Kamya MR, Sohn H, Kiwanuka N, Katamba A, Cattamanchi A, Dowdy DW, Semitala FC. Understanding patient-level costs of weekly isoniazid-rifapentine (3HP) among people living with HIV in Uganda. Int J Tuberc Lung Dis 2023; 27:458-464. [PMID: 37231600 DOI: 10.5588/ijtld.22.0679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND: Twelve weeks of weekly isoniazid and rifapentine (3HP) prevents TB disease among people with HIV (PWH), but the costs to people of taking TB preventive treatment is not well described.METHODS: We surveyed PWH who initiated 3HP at a large urban HIV/AIDS clinic in Kampala, Uganda, as part of a larger trial. We estimated the cost of one 3HP visit from the patient perspective, including both out-of-pocket costs and estimated lost wages. Costs were reported in 2021 Ugandan shillings (UGX) and US dollars (USD; USD1 = UGX3,587)RESULTS: The survey included 1,655 PWH. The median participant cost of one clinic visit was UGX19,200 (USD5.36), or 38.5% of the median weekly income. Per visit, the cost of transportation was the largest component (median: UGX10,000/USD2.79), followed by lost income (median: UGX4,200/USD1.16) and food (median: UGX2,000/USD0.56). Men reported greater income loss than women (median: UGX6,400/USD1.79 vs. UGX3,300/USD0.93), and participants who lived further than a 30-minute drive to the clinic had higher transportation costs than others (median: UGX14,000/USD3.90 vs. UGX8,000/USD2.23).CONCLUSION: Patient-level costs to receive 3HP accounted for over one-third of weekly income. Patient-centered approaches to averting or defraying these costs are needed.
Collapse
Affiliation(s)
- J Sung
- Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A Musinguzi
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - J L Kadota
- Division of Pulmonary and Critical Care Medicine and Center for Tuberculosis, University of California San Francisco, San Francisco, CA, USA
| | - Y Baik
- Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - J Nabunje
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - F Welishe
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - O Bishop
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - C A Berger
- Division of Pulmonary and Critical Care Medicine and Center for Tuberculosis, University of California San Francisco, San Francisco, CA, USA
| | - A Katahoire
- Child Health and Development Centre, Makerere University College of Health Sciences, Kampala, Uganda
| | - A Nakitende
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - J Nakimuli
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - L Akello
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - J R Kasidi
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - L Kunihira Tinka
- Uganda Tuberculosis Implementation Research Consortium, Kampala, Uganda
| | - M R Kamya
- Infectious Diseases Research Collaboration, Kampala, Uganda, Department of Internal Medicine, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - H Sohn
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - N Kiwanuka
- Department of Epidemiology and Biostatistics, School of Public Health, Makerere University College of Health Sciences, Kampala, Uganda
| | - A Katamba
- Uganda Tuberculosis Implementation Research Consortium, Kampala, Uganda, Department of Internal Medicine Clinical Epidemiology Unit, Makerere University College of Health Science, Kampala, Uganda
| | - A Cattamanchi
- Division of Pulmonary and Critical Care Medicine and Center for Tuberculosis, University of California San Francisco, San Francisco, CA, USA, Uganda Tuberculosis Implementation Research Consortium, Kampala, Uganda, Center for Vulnerable Populations at Zuckerberg San Francisco General Hospital and Trauma Center, University of California San Francisco, San Francisco, CA, USA
| | - D W Dowdy
- Uganda Tuberculosis Implementation Research Consortium, Kampala, Uganda, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - F C Semitala
- Infectious Diseases Research Collaboration, Kampala, Uganda, Department of Internal Medicine, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda, Makerere University Joint AIDS Program, Kampala, Uganda
| |
Collapse
|
5
|
Hung WH, Sung J, Chen WY, Chiu LT, Yip HT, Wei JCC, Hung YM, Chang R. Risk of stroke with antivenom usage after venomous snakebite in Taiwan: a population-based cohort study. QJM 2022; 115:587-595. [PMID: 34613415 DOI: 10.1093/qjmed/hcab259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 09/03/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND AND PURPOSE Stroke is a rare complication of snakebites, but may lead to serious sequelae. We aimed to explore the relationship between venomous snakebite and the risk for acute stroke, in a nationwide population-based cohort study. METHODS This retrospective cohort study used claims data between 1 January 2000 and 31 December 2012, from the Taiwan National Health Insurance Research Database. The study included data of patients aged 18 years or older with venomous snakebite (n = 535), matched for propensity score with controls without venomous snakebite (n = 2140). The follow-up period was the duration from the initial diagnosis of venomous snakebite and administration of antivenom to the date of an acute stroke, or until 31 December 2013. The competing risk model was used to estimate the hazard ratio (HR) and 95% confidence intervals (CIs) of stroke, ischemic stroke and hemorrhagic stroke, after adjusting for demographic and other possible stroke risk factors. RESULTS The adjusted HR for the venomous snakebite group compared with the control group was 2.68 for hemorrhagic stroke (95% CI = 1.35-5.33). Stratified analysis showed that the older age group (>65 years old) had a higher risk of hemorrhagic stroke. A 2.72-fold significant increase in the risk for hemorrhagic stroke was observed following venomous snakebite with antivenom usage (95% CI = 1.41-5.26). CONCLUSION Venomous snakebite is associated with an increased risk of hemorrhagic stroke after the use of antivenom. Further study of the underlying mechanism is warranted.
Collapse
Affiliation(s)
- W-H Hung
- Division of Chest Medicine, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - J Sung
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospitals, Kaohsiung, Taiwan
| | - W-Y Chen
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - L-T Chiu
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - H-T Yip
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - J C-C Wei
- Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y-M Hung
- Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospitals, Kaohsiung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- School of Medicine, National Yang Ming University, Taipei, Taiwan
| | - R Chang
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Recreation and Sports Management, Tajen University, Pingtung, Taiwan
| |
Collapse
|
6
|
Datta S, Cramer P, Sung J, Wright D, Charalel R. Abstract No. 591 Systematic review of use of patient-reported outcome measures in interventional radiology. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
7
|
Perkins R, Swallow E, Wang W, Gao E, Olson S, Sung J, Nguyen H, Peterson D, Billmyer E, Chang A. POS-050 THE PATIENT JOURNEY FOR IMMUNOGLOBULIN A NEPHROPATHY: DIAGNOSTIC DELAY AND CHANGE IN KIDNEY FUNCTION FROM FIRST CLINICAL SIGN. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.04.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
8
|
Lee H, Park HE, Chun EJ, Chang HJ, Sung J, Jung HO, Choi SY. The impact of nonoptimal lipids on the progression of coronary artery calcification in asymptomatic young adults: results from the KOICA registry. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Recently, as cumulative exposure of lipids for a lifetime has become important to prevent and predict atherosclerotic cardiovascular disease (ASCVD), it is recommended to obtain the optimal lipid levels from a young age. However, questions remain regarding the vascular changes in young adulthood by nonoptimal lipid levels.
Purpose
We aimed to investigate the progression of coronary artery calcification (CAC) according to lipid profiles in Korean young adults.
Methods
From the KOrea Initiative on Coronary Artery calcification registry, we collected 2,940 statin-naïve adults under 45-year-old, undergoing serial coronary artery calcium scans for the purpose of routine health check-ups between 2002 and 2017. CAC progression was assessed according to the optimality of lipid levels and each lipid variable.
Results
In this cohort (mean age, 41.3 years; man 82.4%), only 477 subjects (16.2%) had the optimal lipid profile, defined as triglycerides <150 mg/dl, LDL cholesterol <100 mg/dl, and HDL cholesterol ≥45 mg/dl. During follow-up (median 39.7 months), CAC progression was observed in 438 participants (14.8%) and more frequent in nonoptimal lipid group (16.5% vs 5.9%; p<0.001). Nonoptimal lipid levels during young adulthood increased the risk of CAC progression after adjusting for other cardiovascular risk factors (adjusted HR, 2.36; p=0.001), with a stepwise risk increase according to lipid levels. In particular, in the subjects with an initial calcium score of zero (adjusted HR, 2.13; p=0.014), those in their 20s or 30s (adjusted HR 2.70; p=0.029), and those without any other risk factors (adjusted HR 2.51; p=0.025), deemed as very low-risk groups, nonoptimal lipid levels more than doubled the risk of CAC progression, respectively. Among lipid variables, high triglycerides appeared to provide the greatest impact on CAC progression of young adults.
Conclusions
The proportion of young adults with optimal lipid levels was lower than expected. Nonoptimal lipid level was significantly associated with the risk of CAC progression in young adults, even with low-risk. Triglycerides had the strongest association with the risk of CAC progression. Screening and intervention for nonoptimal lipid levels, particularly triglycerides, from an early age might be of clinical value.
Collapse
Affiliation(s)
- H Lee
- Seoul National University Hospital, Department of Internal Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - HE Park
- Seoul National University Hospital, Department of Internal Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| | - EJ Chun
- Seoul National University Bundang Hospital, Division of Radiology, Seongnam, Korea (Republic of)
| | - HJ Chang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Sung
- Samsung Medical Center, Division of Cardiology, Seoul, Korea (Republic of)
| | - HO Jung
- The Catholic University of Korea Seoul St. Mary's Hospital, Division of Cardiology, Seoul, Korea (Republic of)
| | - SY Choi
- Seoul National University Hospital, Department of Internal Medicine, Division of Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
9
|
Gjonaj S, Sung J, Collins T, D’Amico A, Curcio G, Suderio-Tirone E, Fanger D, Noble K. 136: Improving data collection with the Universal Physician Encounter Form (UPEF). J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01561-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Lee S, Sung J. MA14.06 High Tumor Mutation Burden Predicts Unfavorable Clinical Outcome in EGFR-Mutated Lung Adenocarcinoma Treated With Targeted Therapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
11
|
Takagi H, Leipsic J, Lin F, Shaw L, Lee S, Andreini D, Al-Mallah M, Budoff M, Cademartiri F, Chinnaiyan K, Choi J, Conte E, Marques H, Gonçalves P, Gottlieb I, Hadamitzky M, Maffei E, Pontone G, Shin S, Kim Y, Lee B, Chun E, Sung J, Virmani R, Samady H, Stone P, Berman D, Min J, Narula J, Bax J, Chang H. Association Of Tube Voltage With Plaque Composition On Coronary Ct Angiography: Results From Paradigm Registry. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
12
|
Won KB, Park EJ, Chun EJ, Sung J, Jung HO, Chang HJ. Association of blood pressure classification using the 2017 ACC/AHA guidelines with the progression of coronary artery calcification. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Aims
The recent American College of Cardiology/American Heart Association guidelines reinforced the criteria for diagnosis of hypertension. We assessed the association of this reinforced criteria with coronary artery calcification (CAC) progression in asymptomatic adults according to different age groups.
Methods and results
We included 10,839 asymptomatic Korean adults (23.4% aged ≤45 years) who underwent at least two coronary artery calcium score (CACS) evaluations between 2012 and 2016. All participants were categorised into normal blood pressure (BP) (untreated systolic/diastolic <120/<80 mmHg), elevated BP (untreated systolic/diastolic 120–129/<80 mmHg), stage 1 hypertension (untreated systolic/diastolic BP 130–139/80–89 mmHg), or stage 2 hypertension (systolic/diastolic BP ≥140/≥90 mmHg or taking anti-hypertensive medication) groups. CAC progression was defined as a difference ≥2.5 between the square roots (√) of the baseline and follow-up CACSs (Δ√transformed CACS). During a mean 3.3-year follow-up, the incidence of CAC progression was 13.5% and 36.3% in groups with ≤45 and >45 years, respectively. After multivariable adjustment for sex, diabetes, dyslipidaemia, obesity, current smoking, and baseline CACS, hazard ratios (95% confidence interval) for CAC progression versus normal BP in elevated BP, stage 1 hypertension, and stage 2 hypertension were 1.39 (0.93–2.07)(P = 0.107), 1.59 (1.17–2.17)(P = 0.003), and 2.38 (1.82–3.12)(P <0.001) in the ≤45 years group and 1.13 (0.97–1.32)(P = 0.111), 1.20 (1.06–1.34)(P = 0.003), and 1.72 (1.57–1.87)(P <0.001) in the >45 years group.
Conclusion
Newly defined stage 1 hypertension is independently associated with CAC progression in asymptomatic Korean adults irrespective of different age groups.
Collapse
Affiliation(s)
- KB Won
- Ulsan University Hospital, Cardiology, Ulsan, Korea (Republic of)
| | - EJ Park
- Ulsan University Hospital, Medical information Center, Ulsan, Korea (Republic of)
| | - EJ Chun
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - J Sung
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - HO Jung
- The Catholic University of Korea, Cardiology, Seoul, Korea (Republic of)
| | - HJ Chang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea (Republic of)
| |
Collapse
|
13
|
Dinh A, Brown R, Charalel R, Sung J. Abstract No. 575 LIRADS 4/5 lesions less than 2 cm: watch or treat? Understanding the natural history. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
14
|
Suh CH, Shim WH, Kim SJ, Roh JH, Lee JH, Kim MJ, Park S, Jung W, Sung J, Jahng GH. Development and Validation of a Deep Learning-Based Automatic Brain Segmentation and Classification Algorithm for Alzheimer Disease Using 3D T1-Weighted Volumetric Images. AJNR Am J Neuroradiol 2020; 41:2227-2234. [PMID: 33154073 DOI: 10.3174/ajnr.a6848] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 08/07/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND PURPOSE Limited evidence has suggested that a deep learning automatic brain segmentation and classification method, based on T1-weighted brain MR images, can predict Alzheimer disease. Our aim was to develop and validate a deep learning-based automatic brain segmentation and classification algorithm for the diagnosis of Alzheimer disease using 3D T1-weighted brain MR images. MATERIALS AND METHODS A deep learning-based algorithm was developed using a dataset of T1-weighted brain MR images in consecutive patients with Alzheimer disease and mild cognitive impairment. We developed a 2-step algorithm using a convolutional neural network to perform brain parcellation followed by 3 classifier techniques including XGBoost for disease prediction. All classification experiments were performed using 5-fold cross-validation. The diagnostic performance of the XGBoost method was compared with logistic regression and a linear Support Vector Machine by calculating their areas under the curve for differentiating Alzheimer disease from mild cognitive impairment and mild cognitive impairment from healthy controls. RESULTS In a total of 4 datasets, 1099, 212, 711, and 705 eligible patients were included. Compared with the linear Support Vector Machine and logistic regression, XGBoost significantly improved the prediction of Alzheimer disease (P < .001). In terms of differentiating Alzheimer disease from mild cognitive impairment, the 3 algorithms resulted in areas under the curve of 0.758-0.825. XGBoost had a sensitivity of 68% and a specificity of 70%. In terms of differentiating mild cognitive impairment from the healthy control group, the 3 algorithms resulted in areas under the curve of 0.668-0.870. XGBoost had a sensitivity of 79% and a specificity of 80%. CONCLUSIONS The deep learning-based automatic brain segmentation and classification algorithm allowed an accurate diagnosis of Alzheimer disease using T1-weighted brain MR images. The widespread availability of T1-weighted brain MR imaging suggests that this algorithm is a promising and widely applicable method for predicting Alzheimer disease.
Collapse
Affiliation(s)
- C H Suh
- From the Department of Radiology and Research Institute of Radiology (C.H.S., W.H.S., S.J.K.)
| | - W H Shim
- From the Department of Radiology and Research Institute of Radiology (C.H.S., W.H.S., S.J.K.)
| | - S J Kim
- From the Department of Radiology and Research Institute of Radiology (C.H.S., W.H.S., S.J.K.)
| | - J H Roh
- Department of Neurology (J.H.R., J.-H.L.).,Department of Physiology (J.H.R.), Korea University College of Medicine, Seoul, Republic of Korea
| | - J-H Lee
- Department of Neurology (J.H.R., J.-H.L.)
| | - M-J Kim
- Health Screening and Promotion Center (M.-J.K.), Asan Medical Center, Seoul, Republic of Korea
| | - S Park
- VUNO Inc (S.P., W.J., J.S.), Seoul, Republic of Korea
| | - W Jung
- VUNO Inc (S.P., W.J., J.S.), Seoul, Republic of Korea
| | - J Sung
- VUNO Inc (S.P., W.J., J.S.), Seoul, Republic of Korea
| | - G-H Jahng
- Department of Radiology (G.-H.J.), Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | | |
Collapse
|
15
|
Sung J, Loughin C, Marino D, Leyva F, Dewey C, Umbaugh S, Lesser M. Medical infrared thermal imaging of canine appendicular bone neoplasia. BMC Vet Res 2019; 15:430. [PMID: 31796069 PMCID: PMC6889724 DOI: 10.1186/s12917-019-2180-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 11/18/2019] [Indexed: 11/16/2022] Open
Abstract
Background Medical infrared thermal imaging (MITI) is a noninvasive imaging modality used in veterinary medicine as a screening tool for musculoskeletal and neurological disease processes. An infrared camera measures the surface body heat and produces a color map that represents the heat distribution. Local trauma or disease can impair the autonomic nervous system, which leads to changes in the local dermal microcirculation and subsequent alteration of surface body heat. Disruption of autonomic flow to the cutaneous vasculature at deeper levels can also result in asymmetric thermographic results. The purpose of this study was to evaluate surface temperature differences between limbs affected by bone neoplasia and their normal contralateral limbs. Results A statistically significant difference in average temperature was noted between regions of interest of the two groups (paired difference: 0.53 C° ± 0.14; P = 0.0005). In addition, pattern recognition analysis yielded a 75–100% success rate in lesion identification. Conclusions Significant alterations noted with average temperature and thermographic patterns indicate that MITI can document discernible changes associated with the presence of canine appendicular bone tumors. While MITI cannot be used as the sole diagnostic tool for bone cancer, it can be used as a screening modality and may be applicable in early detection of cancer.
Collapse
Affiliation(s)
- J Sung
- Department of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY, 11803, USA
| | - C Loughin
- Department of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY, 11803, USA
| | - D Marino
- Department of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY, 11803, USA.
| | - F Leyva
- Department of Surgery, Long Island Veterinary Specialists, 163 South Service Road, Plainview, NY, 11803, USA
| | - C Dewey
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, 930 Campus Road, Box 33, Ithaca, NY, 14853, USA
| | - S Umbaugh
- Computer Vision and Image Processing Laboratory, Electrical and Computer Engineering Department, Southern Illinois University Edwardsville, Edwardsville, IL, 62062, USA
| | - M Lesser
- Biostatistics Unit, Feinstein Institute for Medical Research, Northwell Health, 350 Community Dr, Manhasset, NY, 11030, USA
| |
Collapse
|
16
|
Sung J, Ahn KT, Cho BR, Lee SY, Kim BJ, Kim DK, Park JI, Lee WS. 1423Adherence to triple component antihypertensive regimen is higher in single-pill combination than two-pill regimen: data from a randomized controlled trial using medication event monitoring system. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Simplicity of regimen is known to be an important determinant of medication adherence and using single-pill combination (SPC) in hypertension treatment resulted in better adherence and persistence than free-equivalent combination. However, this finding has been studied only in dual-component antihypertensive treatments and in observational studies using medication possession ratio as an index of adherence. Medication event monitoring system (MEMS) is considered to be the gold standard in estimating medication adherence.
Purpose
To investigate the superiority in adherence of triple-component SPC compared to equivalent two-pill regimen using MEMS
Methods
This is a multi-center open-label randomized controlled trial. Inclusion criteria were hypertensive patients whose clinic blood pressure is not adequately controlled (systolic >140 mmHg or diastolic >90 mmHg) with combination antihypertensive regimen comprising two of three classes (angiotensin receptor blocker, calcium channel blocker and thiazide diuretics) for at least 4 weeks. Eligible patients were randomized either to single-pill (triple-component SPC, olmesartan/amlodipine/ hydrochlorothiazide 20/5/12.5 mg) or two-pill (dual-component SPC + one free pill, olmesartan/hydrochlorothiazide 20/12.5 mg + amlodipine 5 mg) groups and maintained for 12 weeks. Medications were dispensed in MEMS. Primary outcomes were the difference of percentage of dose taken (PDT) and percentage of days with prescribed dose taken correctly (PDTc) between single- and two-pill therapy, calculated from MEMS data.
Results
From 8 hospitals, 146 hypertensive patients were randomized into single- and two-pill groups. Final analysis was done in 65 and 66 patients in each group from which adherence index could be obtained. Baseline clinical characteristics of the two groups were not different. The single-pill group had significantly higher PDT and PDTc compared to the two-pill group. (median (25–75 percentile) (%), PDT 95.1 (87.9 - 100.0) vs 91.2 (79.8 - 96.5); PDTc 93.1 (79.8 - 96.5) vs 91.3 (70.7 - 96.4), p = both 0.04, by Wilcoxon rank sum test)
Percent dose taken
Conclusion
Single-pill combination of triple-component antihypertensive regimen showed superior adherence compared to equivalent two-pill therapy. Reducing pill burden by using SPC is a relevant strategy to enhance the adherence to multi-drug antihypertensive therapy.
Acknowledgement/Funding
Daiichi-Sankyo
Collapse
Affiliation(s)
- J Sung
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea (Republic of)
| | - K T Ahn
- Chungnam National University Hospital, Daejeon, Korea (Republic of)
| | - B R Cho
- Kangwon National University Hospital, Chooncheon, Korea (Republic of)
| | - S Y Lee
- Ilsan Paik Hospital, Goyang, Korea (Republic of)
| | - B J Kim
- Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea (Republic of)
| | - D K Kim
- Busan Paik Hospital, Busan, Korea (Republic of)
| | - J I Park
- VHS Medical Center, Seoul, Korea (Republic of)
| | - W S Lee
- Chung-Ang University Hospital, Seoul, Korea (Republic of)
| |
Collapse
|
17
|
Shin J, Hong Y, Sung J. EP.04A case of late onset multiple acyl-CoA dehydrogenase deficiency with novel ETFDH mutation. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
18
|
Lee H, Kim J, Kang S, Moon H, Sung J, Jeong H. Treatment efficacy of endoscopic submucosal dissection for papillary adenocarcinoma-type early gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
19
|
Lui RN, Wong SH, Lau LHS, Chan TT, Cheung KCY, Li A, Chin ML, Tang W, Ching JYL, Lam KLY, Chan PKS, Wu JCY, Sung JJY, Chan FKL, Ng SC. Faecal microbiota transplantation for treatment of recurrent or refractory Clostridioides difficile infection in Hong Kong. Hong Kong Med J 2019; 25:178-182. [PMID: 31178437 DOI: 10.12809/hkmj197855] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Clostridioides difficile infection (CDI) is a leading cause of healthcare-associated infection globally, causing significant morbidity and mortality. Faecal microbiota transplantation (FMT) has emerged as a promising option for recurrent and refractory CDI. This study aimed to assess the safety, efficacy, and feasibility of FMT for CDI in Hong Kong. METHODS We conducted a single-centre, retrospective study for all consecutive cases of recurrent or refractory CDI who underwent FMT from 2013 to 2018. Clinical demographics, outcome, and safety parameters were collected. RESULTS A total of 24 patients with recurrent or refractory CDI (median age 70 years, interquartile range=45.0-78.3 years; 67% male) were included. Over 80% had been recently hospitalised or were long-term care facility residents. Faecal microbiota transplantation was delivered by feeding tube in 11 (45.8%), oesophagogastroduodenoscopy in eight (33.3%), and colonoscopy in six (25%) of the patients. Resolution of diarrhoea without relapse within 8 weeks was achieved in 21 out of 24 patients (87.5%) after FMT. No deaths occurred within 30 days. The FMT was well tolerated and no serious adverse events attributable to FMT were reported. CONCLUSION Our results confirm that FMT is a safe, efficacious, and feasible intervention for patients with refractory or recurrent CDI in Hong Kong. Given the increasing disease burden and the lack of effective alternatives in Hong Kong for difficult-to-treat cases of CDI, we recommend that a territory-wide FMT service be established to address increasing demand for this treatment.
Collapse
Affiliation(s)
- R N Lui
- Division of Gastroenterology and Hepatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - S H Wong
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - L H S Lau
- Division of Gastroenterology and Hepatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - T T Chan
- Division of Gastroenterology and Hepatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - K C Y Cheung
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - A Li
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - M L Chin
- Department of Microbiology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - W Tang
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J Y L Ching
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - K L Y Lam
- Division of Gastroenterology and Hepatology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Shatin, Hong Kong
| | - P K S Chan
- Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Microbiology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J C Y Wu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J J Y Sung
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - F K L Chan
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S C Ng
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Centre for Gut Microbiota Research, The Chinese University of Hong Kong, Shatin, Hong Kong
| |
Collapse
|
20
|
Sung J, Sodhi CP, Voltaggio L, Hou X, Jia H, Zhou Q, Čiháková D, Hackam DJ. The recruitment of extra-intestinal cells to the injured mucosa promotes healing in radiation enteritis and chemical colitis in a mouse parabiosis model. Mucosal Immunol 2019; 12:503-517. [PMID: 30617302 PMCID: PMC6445662 DOI: 10.1038/s41385-018-0123-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 11/05/2018] [Accepted: 11/20/2018] [Indexed: 02/04/2023]
Abstract
Mucosal healing occurs through migration and proliferation of cells within injured epithelium, yet these processes may be inadequate for mucosal healing after significant injury where the mucosa is denuded. We hypothesize that extra-intestinal cells can contribute to mucosal healing after injury to the small and large intestine. We generated parabiotic pairs between wild-type and tdTomato mice, which were then subjected to radiation-induced enteritis and 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis. We now show that as compared with singleton mice, mice with a parabiotic partner were protected against intestinal damage as revealed by significantly reduced weight loss, reduced expression of pro-inflammatory cytokines, reduced enterocyte apoptosis, and improved crypt proliferation. Donor cells expressed CD45-, Sca-1+, c-kit+, and CXCR4+ and accumulated around the injured crypts but did not transdifferentiate into epithelia, suggesting that extra-intestinal cells play a paracrine role in the healing response, while parabiotic pairings with Rag1-/- mice showed improved healing, indicating that adaptive immune cells were dispensable for mucosal healing. Strikingly, ablation of the bone marrow of the donor parabionts removed the protective effects. These findings reveal that the recruitment of extra-intestinal, bone marrow-derived cells into the injured intestinal mucosa can promote mucosal healing, suggesting novel therapeutic approaches for severe intestinal disease.
Collapse
Affiliation(s)
- J Sung
- Institute of Genetic Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - C P Sodhi
- Division of Pediatric Surgery, Johns Hopkins Children's Center and Department of Surgery, Baltimore, MD, USA
| | - L Voltaggio
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - X Hou
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - H Jia
- Division of Pediatric Surgery, Johns Hopkins Children's Center and Department of Surgery, Baltimore, MD, USA
| | - Q Zhou
- Division of Pediatric Surgery, Johns Hopkins Children's Center and Department of Surgery, Baltimore, MD, USA
| | - D Čiháková
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - D J Hackam
- Institute of Genetic Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
- Division of Pediatric Surgery, Johns Hopkins Children's Center and Department of Surgery, Baltimore, MD, USA.
| |
Collapse
|
21
|
Affiliation(s)
- J Sung
- Konkuk University,Seoul, Korea
| | - A Son
- Konkuk University,Seoul, South Korea
| | - B Kim
- Konkuk University,Seoul, South Korea
| |
Collapse
|
22
|
Sung J, Kwon O, Kim D, Kim K. Bilateral subdural empyemas with meningitis secondary to acute barosinusitis. Eur Ann Otorhinolaryngol Head Neck Dis 2018; 135:457-459. [DOI: 10.1016/j.anorl.2018.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 03/26/2018] [Indexed: 10/28/2022]
|
23
|
Lee J, Sung J, Choi M. FACTORS RELATED TO SUBJECTIVE COGNITIVE DECLINE AND COGNITIVE IMPAIRMENT AMONG OLDER ADULTS IN KOREA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Lee
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea
| | - J Sung
- College of Nursing, Yonsei University
| | - M Choi
- Department of Nursing, Bucheon University
| |
Collapse
|
24
|
Shin J, Lee A, Choi S, Hong Y, Sung J. INFLAMMATORY MYOPATHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
25
|
Park J, Moon H, Kwon I, Kim J, Kang S, Lee E, Kim S, Sung J, Lee B, Jeong H. Usefulness of colonic tattooing using ICG in patients with colorectal tumors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
26
|
Moon H, Kang S, Sung J, Jeong H. Endoscopic prediction of tumor invasion depth in early gastric signet ring cell carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
27
|
Jelenkovic A, Yokoyama Y, Sund R, Hur YM, Harris JR, Brandt I, Nilsen TS, Ooki S, Ullemar V, Almqvist C, Magnusson PKE, Saudino KJ, Stazi MA, Fagnani C, Brescianini S, Nelson TL, Whitfield KE, Knafo-Noam A, Mankuta D, Abramson L, Cutler TL, Hopper JL, Llewellyn CH, Fisher A, Corley RP, Huibregtse BM, Derom CA, Vlietinck RF, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Krueger RF, McGue M, Pahlen S, Alexandra Burt S, Klump KL, Dubois L, Boivin M, Brendgen M, Dionne G, Vitaro F, Willemsen G, Bartels M, van Beijsterveld CEM, Craig JM, Saffery R, Rasmussen F, Tynelius P, Heikkilä K, Pietiläinen KH, Bayasgalan G, Narandalai D, Haworth CMA, Plomin R, Ji F, Ning F, Pang Z, Rebato E, Tarnoki AD, Tarnoki DL, Kim J, Lee J, Lee S, Sung J, Loos RJF, Boomsma DI, Sørensen TIA, Kaprio J, Silventoinen K. Associations between birth size and later height from infancy through adulthood: An individual based pooled analysis of 28 twin cohorts participating in the CODATwins project. Early Hum Dev 2018; 120:53-60. [PMID: 29656171 PMCID: PMC6532975 DOI: 10.1016/j.earlhumdev.2018.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 04/06/2018] [Accepted: 04/07/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment. AIM To analyze the associations of birth weight, length and ponderal index with height from infancy through adulthood within mono- and dizygotic twin pairs, which provides insights into the role of genetic and environmental individual-specific factors. METHODS This study is based on the data from 28 twin cohorts in 17 countries. The pooled data included 41,852 complete twin pairs (55% monozygotic and 45% same-sex dizygotic) with information on birth weight and a total of 112,409 paired height measurements at ages ranging from 1 to 69 years. Birth length was available for 19,881 complete twin pairs, with a total of 72,692 paired height measurements. The association between birth size and later height was analyzed at both the individual and within-pair level by linear regression analyses. RESULTS Within twin pairs, regression coefficients showed that a 1-kg increase in birth weight and a 1-cm increase in birth length were associated with 1.14-4.25 cm and 0.18-0.90 cm taller height, respectively. The magnitude of the associations was generally greater within dizygotic than within monozygotic twin pairs, and this difference between zygosities was more pronounced for birth length. CONCLUSION Both genetic and individual-specific environmental factors play a role in the association between birth size and later height from infancy to adulthood, with a larger role for genetics in the association with birth length than with birth weight.
Collapse
Affiliation(s)
- A Jelenkovic
- Department of Social Research, University of Helsinki, Helsinki, Finland, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Y Yokoyama
- Department of Public Health Nursing, Osaka City University, Osaka, Japan
| | - R Sund
- Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - YM Hur
- Department of Education, Mokpo National University, Jeonnam, South Korea
| | - JR Harris
- Norwegian Institute of Public Health, Oslo, Norway
| | - I Brandt
- Norwegian Institute of Public Health, Oslo, Norway
| | - TS Nilsen
- Norwegian Institute of Public Health, Oslo, Norway
| | - S Ooki
- Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
| | - V Ullemar
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - C Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden, Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - PKE Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - KJ Saudino
- Boston University, Department of Psychological and Brain Sciences, Boston, MA, USA
| | - MA Stazi
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - C Fagnani
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - S Brescianini
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - TL Nelson
- Department of Health and Exercise Sciences, Colorado School of Public Health, Colorado State University, USA
| | - KE Whitfield
- Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - A Knafo-Noam
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - D Mankuta
- Hadassah Hospital Obstetrics and Gynecology Department, Hebrew University Medical School, Jerusalem, Israel
| | - L Abramson
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - TL Cutler
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia
| | - JL Hopper
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia, Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - CH Llewellyn
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - A Fisher
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - RP Corley
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - BM Huibregtse
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - CA Derom
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium, Department of Obstetrics and Gynaecology, Ghent University Hospitals, Ghent, Belgium
| | - RF Vlietinck
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - M Bjerregaard-Andersen
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau, Research Center for Vitamins and Vaccines, Statens Serum Institute, Copenhagen, Denmark, Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - H Beck-Nielsen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - M Sodemann
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | - RF Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - M McGue
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - S Pahlen
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | | | - KL Klump
- Michigan State University, East Lansing, MI, USA
| | - L Dubois
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - M Boivin
- École de psychologie, Université Laval, Québec, Canada, Institute of Genetic, Neurobiological, and Social Foundations of Child Development, Tomsk State University, Russian Federation
| | - M Brendgen
- Département de psychologie, Université du Québec à Montréal, Montréal, Québec, Canada
| | - G Dionne
- École de psychologie, Université Laval, Québec, Canada
| | - F Vitaro
- École de psychoéducation, Université de Montréal, Montréal, Québec, Canada
| | - G Willemsen
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - M Bartels
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - CEM van Beijsterveld
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - JM Craig
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - R Saffery
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - F Rasmussen
- Department of Health Sciences, Lund University, Sweden
| | - P Tynelius
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - K Heikkilä
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - KH Pietiläinen
- Obesity Research Unit, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - G Bayasgalan
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia
| | - D Narandalai
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - CMA Haworth
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - R Plomin
- King’s College London, MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - F Ji
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - F Ning
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - Z Pang
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - E Rebato
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - AD Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - DL Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - J Kim
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - S Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Sung
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea, Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - RJF Loos
- The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - DI Boomsma
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - TIA Sørensen
- Novo Nordisk Foundation Centre for Basic Metabolic Research (Section of Metabolic Genetics), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark, Department of Public Health (Section of Epidemiology), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - J Kaprio
- Department of Public Health, University of Helsinki, Helsinki, Finland, Institute for Molecular Medicine FIMM, Helsinki, Finland
| | - K Silventoinen
- Department of Social Research, University of Helsinki, Helsinki, Finland, Osaka University Graduate School of Medicine, Osaka University, Osaka, Japan
| |
Collapse
|
28
|
Biederman D, Titano J, Korff R, Sung J, Patel R, Nowakowski F, Fischman A, Lookstein R, Kim E. Abstract No. 538 Radioembolization results in improved efficacy and overall survival compared to chemoembolization in patients with hepatocellular carcinoma and elevated alpha-fetoprotein. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
29
|
Biederman D, Titano J, Korff R, Sung J, Patel R, Nowakowski F, Fischman A, Lookstein R, Kim E. Abstract No. 537 Comprehensive survival outcomes in a single-center cohort of 501 patients with hepatocellular carcinoma treated with yttrium-90 glass-based radioembolization. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
30
|
Sung J, Biederman D, Bishay V, Ranade M, Patel R, Nowakowski F, Fischman A, Lookstein R, Kim E. Abstract No. 520 Survival analysis using albumin-bilirubin grade for patients treated with drug-eluting bead transarterial chemoembolization (DEB-TACE) for hepatocellular carcinoma. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
|
31
|
Kang JH, Sung J, Song YM, Kim YH. Heritability of the airway structure and head posture using twin study. J Oral Rehabil 2018; 45:378-385. [DOI: 10.1111/joor.12620] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2018] [Indexed: 11/28/2022]
Affiliation(s)
- J.-H. Kang
- Clinic of Oral Medicine and Orofacial Pain; Institute of Oral Health Science; Ajou University School of Medicine; Suwon Korea
| | - J. Sung
- Department of Epidemiology; School of Public Health; Seoul National University; Seoul Korea
| | - Y.-M. Song
- Department of Family Medicine; Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea
| | - Y.-H. Kim
- Department of Orthodontics; Institute of Oral Health Science; Ajou University School of Medicine; Suwon Korea
| |
Collapse
|
32
|
Sung J, Walker B, Clohosey M, Kirchherr J, Xu Y, Warren J, Archin N, Goonetilleke N, Margolis D. Adoptive T cell as a strategy for targeted delivery of immune checkpoint therapy. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30665-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
33
|
Shin J, Choi S, Ahn S, Lim S, Sung J. Axial myopathy: clinical and histopathological features in 7 patients. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
34
|
Lee J, Han D, Rizvi A, Gransar H, Park H, Choi S, Sung J, Park S, Han H, Jung H, Chun E, Chang H. 957Evaluation of coronary artery calcium score for statin treatment strategy according to ESC guidelines in Asymptomatic asian adults. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
35
|
Lee J, Han D, O'Hartaigh B, Rizvi A, Gransar H, Park H, Choi S, Sung J, Park S, Han H, Jung H, Chun E, Chang H. P3461A synergistic relationship between resting heart rate and coronary artery calcification for predicting all-cause mortality in asymptomatic adults. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
36
|
Han D, Koll K, Gransar H, Lee J, Choi S, Chun E, Sung J, Han H, Park S, Jung H, Min J, Chang H. 961Machine learning algorithm to predict all-cause mortality in asymptomatic healthy population: comparison with conventional risk prediction approach. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
37
|
Lee J, Han D, Rizvi A, Gransar H, Park H, Choi S, Sung J, Park S, Han H, Jung H, Chun E, Chang H. 4820Assessing the predictive value of coronary artery calcium score for predicting all-cause mortality in patients with renal impairment. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.4820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
38
|
Patel S, Lam S, Sung J, Cruz R, Goonetilleke N, Xu Y, Kuruc J, Gay C, Jones B, Shpall E, Margolis D, Ambinder R, Bollard C. HIV specific T cells generated from HIV naive adult and cord blood donors target a range of novel viral epitopes—implications for a cure strategy after allogeneic HSCT and CBT. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
39
|
Chao R, Sung J. Regional anesthesia as an alternative to conscious sedation for perioperative pain control for percutaneous gastrostomy tube placement. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
40
|
Shin J, Yoo D, Kim D, Hong Y, Sung J. Repetitive nerve stimulation as electrophysiologic biomarker in muscle cramps. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
41
|
Sung J, Lee D, Kim S, Lee H, Lee S. E-061 What’s the Reliability and Significance of Pre-coiling CT Angiography in Ruptured Cerebral Aneurysms? J Neurointerv Surg 2016. [DOI: 10.1136/neurintsurg-2016-012589.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
42
|
Cruz C, Patel S, Sung J, Lam S, Hanley P, Kuruc J, Ambinder R, Margolis D, Bollard C. Ex Vivo Expanded HIV-Specific T Cells From HIV+ Patients and Virus-Naïve Donors are Functionally Active: Implications for a Cure Strategy Post HSCT. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
Yu J, Liang Q, Wang J, Wang K, Gao J, Zhang J, Zeng Y, Chiu PWY, Ng EKW, Sung JJY. REC8 functions as a tumor suppressor and is epigenetically downregulated in gastric cancer, especially in EBV-positive subtype. Oncogene 2016; 36:182-193. [PMID: 27212034 PMCID: PMC5241426 DOI: 10.1038/onc.2016.187] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/14/2016] [Accepted: 04/18/2016] [Indexed: 12/23/2022]
Abstract
REC8 meiotic recombination protein (REC8) was found to be preferentially methylated in gastric cancer (GC) using promoter methylation array. We aimed to elucidate the epigenetic alteration and biological function of REC8 in GC. REC8 was downregulated in 100% (3/3) of Epstein–Barr virus (EBV)-positive and 80% (8/10) of EBV-negative GC cell lines by promoter methylation, but the expression could be restored through demethylation treatment. Protein expression of REC8 was significantly lower in human primary gastric tumors than in adjacent non-tumor tissues. A negative correlation between methylation and mRNA expression of REC8 was observed in 223 gastric samples of The Cancer Genome Atlas study (r=−0.7018, P<0.001). The methylation level (%) of the REC8 promoter was significantly higher in EBV-positive gastric tumors than in EBV-negative gastric tumors, as shown by bisulfite genomic sequencing (77.6 (69.3–80.5) vs 51.4 (39.5–62.3), median (interquartile range); P<0.001); methylation levels in both subtypes of tumors were significantly higher than in normal stomach tissues (14.8 (4.2–24.0)) (both P<0.001). Multivariate analysis revealed that REC8 methylation was an independent factor for poor survival in GC patients (hazard ratio=1.68, P<0.05). REC8 expression significantly suppressed cell viability, clonogenicity and cell cycle progression; it induced apoptosis and inhibited migration of AGS-EBV (EBV-positive) and BGC823 (EBV-negative) GC cells, and it suppressed tumorigenicity in nude mice. In contrast, knockdown of REC8 in gastric epithelial immortalized GES-1 cells significantly increased cell viability, clonogenicity and migration ability. The tumor-suppressive effect of REC8 is mediated at least in part by the downregulation of genes involved in cell growth (G6PD, SLC2A1, NOL3, MCM2, SNAI1 and SNAI2), and the upregulation of apoptosis/migration inhibitors (GADD45G and LDHA) and tumor suppressors (PinX1, IGFBP3 and ETS2). In conclusion, REC8 is a novel tumor suppressor that is commonly downregulated by promoter methylation in GC, especially in the EBV-associated subtype. Promoter methylation of REC8 is an independent risk factor for the shortened survival of GC patients.
Collapse
Affiliation(s)
- J Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Q Liang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - J Wang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - K Wang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - J Gao
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital and Institute, Beijing, China
| | - J Zhang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Y Zeng
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - P W Y Chiu
- Department of Surgery, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - E K W Ng
- Department of Surgery, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - J J Y Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
44
|
Shen J, Tsoi H, Liang Q, Chu ESH, Liu D, Yu ACS, Chan TF, Li X, Sung JJY, Wong VWS, Yu J. Oncogenic mutations and dysregulated pathways in obesity-associated hepatocellular carcinoma. Oncogene 2016; 35:6271-6280. [PMID: 27132506 PMCID: PMC5153568 DOI: 10.1038/onc.2016.162] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 04/01/2016] [Accepted: 04/03/2016] [Indexed: 02/07/2023]
Abstract
Epidemiological studies showed that obesity and its related non-alcoholic fatty liver disease (NAFLD) promote hepatocellular carcinoma (HCC) development. We aimed to uncover the genetic alterations of NAFLD-HCC using whole-exome sequencing. We compared HCC development in genetically obese mice and dietary obese mice with wild-type lean mice fed a normal chow after treatment with diethylnitrosamine. HCC tumor and adjacent normal samples from obese and lean mice were then subjected to whole-exome sequencing. Functional and mechanistic importance of the identified mutations in Carboxyl ester lipase (Cel) gene and Harvey rat sarcoma virus oncogene 1 (Hras) was further elucidated. We demonstrated significantly higher incidences of HCC in both genetic and dietary obese mice with NAFLD development as compared with lean mice without NAFLD. The mutational signatures of NAFLD-HCC and lean HCC were distinct, with <3% overlapped. Eight metabolic or oncogenic pathways were found to be significantly enriched by mutated genes in NAFLD-HCC, but only two of these pathways were dysregulated by mutations in lean HCC. In particular, Cel was mutated significantly more frequently in NAFLD-HCC than in lean HCC. The multiple-site mutations in Cel are loss-of-function mutations, with effects similar to Cel knock-down. Mutant Cel caused accumulation of cholesteryl ester in liver cells, which led to induction of endoplasmic reticulum stress and consequently activated the IRE1α/c-Jun N-terminal kinase (JNK)/c-Jun/activating protein-1 (AP-1) signaling cascade to promote liver cell growth. In addition, single-site mutations in Hras at codon 61 were found in NAFLD-HCC but none in lean HCC. The gain-of-function mutations in Hras (Q61R and Q61K) significantly promoted liver cell growth through activating the mitogen-activated protein kinase (MAPK) and phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K)/3-phosphoinositide-dependent protein kinase-1 (PDK1)/Akt pathways. In conclusion, we have identified mutation signature and pathways in NAFLD-associated HCC. Mutations in Cel and Hras have important roles in NAFLD-associated hepatocellular carcinogenesis.
Collapse
Affiliation(s)
- J Shen
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - H Tsoi
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - Q Liang
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - E S H Chu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - D Liu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - A C-S Yu
- School of Life Sciences, and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong, China
| | - T F Chan
- School of Life Sciences, and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong, China
| | - X Li
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - J J Y Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - V W S Wong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| | - J Yu
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
45
|
Hirai HW, Tsoi KKF, Chan JYC, Wong SH, Ching JYL, Wong MCS, Wu JCY, Chan FKL, Sung JJY, Ng SC. Systematic review with meta-analysis: faecal occult blood tests show lower colorectal cancer detection rates in the proximal colon in colonoscopy-verified diagnostic studies. Aliment Pharmacol Ther 2016; 43:755-64. [PMID: 26858128 DOI: 10.1111/apt.13556] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 11/12/2015] [Accepted: 01/18/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The performance of faecal occult blood tests (FOBTs) to screen proximally located colorectal cancer (CRC) has produced inconsistent results. AIM To assess in a meta-analysis, the diagnostic accuracy of FOBTs for relative detection of CRC according to anatomical location of CRC. METHODS Diagnostic studies including both symptomatic and asymptomatic cohorts assessing performance of FOBTs for CRC were searched from MEDINE and EMBASE. Primary outcome was accuracy of FOBTs according to the anatomical location of CRC. Bivariate random-effects model was used. Subgroup analyses were performed to evaluate test performance of guaiac-based FOBT (gFOBT) and immunochemical-based FOBT (iFOBT). RESULTS Thirteen studies, with 17 cohorts, reporting performance of FOBT were included; a total of 26 342 patients (mean age 58.9 years; 58.1% male) underwent both colonoscopy and FOBT. Pooled sensitivity, specificity, positive likelihood ratio and negative likelihood ratio of FOBTs for CRC detection in the proximal colon were 71.2% (95% CI 61.3-79.4%), 93.6% (95% CI 90.7-95.7%), 11.1 (95% CI 7.8-15.8) and 0.3 (95% CI 0.2-0.4) respectively. Corresponding findings for CRC detection in distal colon were 80.1% (95% CI 70.9-87.0%), 93.6% (95% CI 90.7-95.7%), 12.6 (95% CI 8.8-18.1) and 0.2 (95% CI 0.1-0.3). The area-under-curve for FOBT detection for proximal and distal CRC were 90% vs. 94% (P = 0.0143). Both gFOBT and iFOBT showed significantly lower sensitivity but comparable specificity for the detection of proximally located CRC compared with distal CRC. CONCLUSION Faecal occult blood tests, both guaiac- and immunochemical-based, show better diagnostic performance for the relative detection of colorectal cancer in the distal colon than in the proximal bowel.
Collapse
Affiliation(s)
- H W Hirai
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong.,Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Shatin, Hong Kong.,Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - K K F Tsoi
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong.,Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J Y C Chan
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S H Wong
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Medicine and Therapeutics, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J Y L Ching
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - M C S Wong
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong.,Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J C Y Wu
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Medicine and Therapeutics, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - F K L Chan
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Medicine and Therapeutics, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J J Y Sung
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Medicine and Therapeutics, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S C Ng
- Institute of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong.,Department of Medicine and Therapeutics, LKS Institute of Health Science, State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, Hong Kong
| |
Collapse
|
46
|
Shin J, Sung J, Lee K, Song YM. Genetic influence on the association between bone mineral density and testosterone in Korean men. Osteoporos Int 2016; 27:643-51. [PMID: 26329099 DOI: 10.1007/s00198-015-3298-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 08/18/2015] [Indexed: 10/23/2022]
Abstract
UNLABELLED Low bone mineral density (BMD) leads to an increased risk of osteoporotic fracture. Total testosterone and free testosterone were positively associated with BMD, which was significantly influenced by the additive genetic effects. INTRODUCTION This cross-sectional study aimed to evaluate an association between testosterone and BMD and the influence of genetic factors on the association. METHODS Study subjects were 1070 Korean men including 144 pairs of monozygotic twins and their family members. Levels of serum total testosterone and sex hormone binding globulin (SHBG) were measured by chemiluminescence immunoassay. Calculated free testosterone (cFT) was then determined using Vermeulen's method. BMDs of the whole body and specific regions were measured using dual-energy X-ray absorptiometry. RESULTS Linear mixed regression analyses showed that total testosterone and cFT were positively associated with BMD at most regions, after considering intra-familial relationship and covariates including fat mass, lean mass, and SHBG. SHBG had an inverse association with BMD at the pelvis but not with the BMD at other regions after adjusting for all covariates and cFT. Co-twin control analysis in monozygotic twins found no association between pairwise difference of testosterone and pairwise difference of BMD. Bivariate variance component analysis showed that both total testosterone and cFT had a significant positive additive genetic correlation with BMD at rib, spine, and arm, whereas SHBG had no significant genetic correlation with BMD. Inverse environmental correlations were seen between total testosterone and BMDs at the lumbar spine and arm. CONCLUSIONS This Korean twin and family study showed that both total testosterone and free testosterone were positively associated with BMD and that genetic effects were significant on the association between testosterone and BMD.
Collapse
Affiliation(s)
- J Shin
- Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - J Sung
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - K Lee
- Department of Family Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Y-M Song
- Department of Family Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.
- Department of Family Medicine, Samsung Medical Center and Center for Clinical Research, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Irwon-ro 81, Gangnamgu, Seoul, 135-710, South Korea.
| |
Collapse
|
47
|
Choi HJ, Adiyani L, Sung J, Choi JY, Kim HB, Kim YK, Kwak YG, Yoo H, Lee SO, Han SH, Kim SR, Kim TH, Lee HM, Chun HK, Kim JS, Yoo JD, Koo HS, Cho EH, Lee KW. Five-year decreased incidence of surgical site infections following gastrectomy and prosthetic joint replacement surgery through active surveillance by the Korean Nosocomial Infection Surveillance System. J Hosp Infect 2016; 93:339-46. [PMID: 26944901 DOI: 10.1016/j.jhin.2015.12.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 12/28/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Surveillance of healthcare-associated infection has been associated with a reduction in surgical site infection (SSI). AIM To evaluate the Korean Nosocomial Infection Surveillance System (KONIS) in order to assess its effects on SSI since it was introduced. METHODS SSI data after gastrectomy, total hip arthroplasty (THA), and total knee arthroplasty (TKA) between 2008 and 2012 were analysed. The pooled incidence of SSI was calculated for each year; the same analyses were also conducted from hospitals that had participated in KONIS for at least three consecutive years. Standardized SSI rates for each year were calculated by adjusting for SSI risk factors. SSI trends were analysed using the Cochran-Armitage test. FINDINGS The SSI rate following gastrectomy was 3.12% (522/16,918). There was a significant trend of decreased crude SSI rates over five years. This trend was also evident in analysis of hospitals that had participated for more than three years. The SSI rate for THA was 2.05% (157/7656), which decreased significantly from 2008 to 2012. The risk factors for SSI after THA included the National Nosocomial Infections Surveillance risk index, trauma, reoperation, and age (60-69 years). The SSI rate for TKA was 1.90% (152/7648), which also decreased significantly during a period of five years. However, the risk-adjusted analysis of SSI did not show a significant decrease for all surgical procedures. CONCLUSION The SSI incidence of gastrectomy and prosthetic joint replacement declined over five years as a result of active surveillance by KONIS.
Collapse
Affiliation(s)
- H J Choi
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, South Korea.
| | - L Adiyani
- Department of Epidemiology and Institute of Environment and Health, Seoul National University, Seoul, South Korea
| | - J Sung
- Department of Epidemiology and Institute of Environment and Health, Seoul National University, Seoul, South Korea
| | - J Y Choi
- Department of Internal Medicine and AIDS Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - H B Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Y K Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Y G Kwak
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Seoul, South Korea
| | - H Yoo
- Infection Control Office, Inje University Sanggye Paik Hospital, Seoul, South Korea
| | - Sang-Oh Lee
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S H Han
- Department of Infection Prevention and Control, Soonchunhyang University Bucheon Hospital, Bucheon, South Korea
| | - S R Kim
- Infection Control Office, Korea University Guro Hospital, Seoul, South Korea
| | - T H Kim
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, South Korea
| | - H M Lee
- Department of Laboratory Medicine, Kwandong University College of Medicine, Gangneung, South Korea
| | - H K Chun
- Department of Infection Control, Kyunghee University Hospital, Seoul, South Korea
| | - J-S Kim
- Department of Laboratory Medicine, Hallym University College of Medicine, Seoul, South Korea
| | - J D Yoo
- Department of Orthopedic Surgery, Ewha Woman's University School of Medicine, Seoul, South Korea
| | - H-S Koo
- Division of Infectious Disease Control, Korean Centers for Disease Control and Prevention, Osong, South Korea
| | - E H Cho
- Division of Infectious Disease Control, Korean Centers for Disease Control and Prevention, Osong, South Korea
| | - K W Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Wonju, South Korea
| | | |
Collapse
|
48
|
Work TM, Dagenais J, Breeden R, Schneemann A, Sung J, Hew B, Balazs GH, Berestecky JM. Green Turtles (Chelonia mydas) Have Novel Asymmetrical Antibodies. The Journal of Immunology 2015; 195:5452-60. [DOI: 10.4049/jimmunol.1501332] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 09/24/2015] [Indexed: 11/19/2022]
|
49
|
Goff MG, Lambers FM, Nguyen TM, Sung J, Rimnac CM, Hernandez CJ. Fatigue-induced microdamage in cancellous bone occurs distant from resorption cavities and trabecular surfaces. Bone 2015; 79:8-14. [PMID: 26008609 PMCID: PMC4501884 DOI: 10.1016/j.bone.2015.05.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 04/29/2015] [Accepted: 05/15/2015] [Indexed: 10/23/2022]
Abstract
Impaired bone toughness is increasingly recognized as a contributor to fragility fractures. At the tissue level, toughness is related to the ability of bone tissue to resist the development of microscopic cracks or other tissue damage. While most of our understanding of microdamage is derived from studies of cortical bone, the majority of fragility fractures occur in regions of the skeleton dominated by cancellous bone. The development of tissue microdamage in cancellous bone may differ from that in cortical bone due to differences in microstructure and tissue ultrastructure. To gain insight into how microdamage accumulates in cancellous bone we determined the changes in number, size and location of microdamage sites following different amounts of cyclic compressive loading. Human vertebral cancellous bone specimens (n=32, 10 male donors, 6 female donors, age 76 ± 8.8, mean ± SD) were subjected to sub-failure cyclic compressive loading and microdamage was evaluated in three-dimensions. Only a few large microdamage sites (the largest 10%) accounted for 70% of all microdamage caused by cyclic loading. The number of large microdamage sites was a better predictor of reductions in Young's modulus caused by cyclic loading than overall damage volume fraction (DV/BV). The majority of microdamage volume (69.12 ± 7.04%) was located more than 30 μm (the average erosion depth) from trabecular surfaces, suggesting that microdamage occurs primarily within interstitial regions of cancellous bone. Additionally, microdamage was less likely to be near resorption cavities than other bone surfaces (p<0.05), challenging the idea that stress risers caused by resorption cavities influence fatigue failure of cancellous bone. Together, these findings suggest that reductions in apparent level mechanical performance during fatigue loading are the result of only a few large microdamage sites and that microdamage accumulation in fatigue is likely dominated by heterogeneity in tissue material properties rather than stress concentrations caused by micro-scale geometry.
Collapse
Affiliation(s)
- M G Goff
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA; Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - F M Lambers
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - T M Nguyen
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
| | - J Sung
- College of Veterinary Medicine, Cornell University, Ithaca, NY, USA
| | - C M Rimnac
- Departments of Mechanical and Aerospace Engineering and Orthopaedics, Case Western Reserve University, Cleveland, OH, USA
| | - C J Hernandez
- Department of Biomedical Engineering, Cornell University, Ithaca, NY, USA; Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA; Hospital for Special Surgery, New York City, NY, USA.
| |
Collapse
|
50
|
Shin J, Kim D, Lee K, Sung J. Oculopharyngodistal myopathy in a Korean family. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|