1
|
Kim SJ, Jo Y, Park SJ, Ji E, Lee JY, Choi E, Baek JY, Jang IY, Jung HW, Kim K, Ryu D, Yoo HJ, Kim BJ. Metabolomic profiles of ovariectomized mice and their associations with body composition and frailty-related parameters in postmenopausal women. J Endocrinol Invest 2024:10.1007/s40618-024-02338-x. [PMID: 38493245 DOI: 10.1007/s40618-024-02338-x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/12/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Menopause, a dramatical estrogen-deficient condition, is considered the most significant milestone in women's health. PURPOSE To investigate the metabolite changes attributed to estrogen deficiency using random forest (RF)-based machine learning (ML) modeling strategy in ovariectomized (OVX) mice as well as determine the clinical relevance of selected metabolites in older women. METHODS AND RESULTS Untargeted and targeted metabolomic analyses revealed that metabolites related to TCA cycle, sphingolipids, phospholipids, fatty acids, and amino acids, were significantly changed in the plasma and/or muscle of OVX mice. Subsequent ML classifiers based on RF algorithm selected alpha-ketoglutarate (AKG), arginine, carnosine, ceramide C24, phosphatidylcholine (PC) aa C36:6, and PC ae C42:3 in plasma as well as PC aa 34:1, PC aa C34:3, PC aa C36:5, PC aa C32:1, PC aa C36:2, and sphingosine in muscle as top featured metabolites that differentiate the OVX mice from the sham-operated group. When circulating levels of AKG, arginine, and carnosine, which showed the most significant changes in OVX mice blood, were measured in postmenopausal women, higher plasma AKG levels were associated with lower bone mass, weak grip strength, poor physical performance, and increased frailty risk. CONCLUSIONS Metabolomics- and ML-based methods identified the key metabolites of blood and muscle that were significantly changed after ovariectomy in mice, and the clinical implication of several metabolites was investigated by looking at their correlation with body composition and frailty-related parameters in postmenopausal women. These findings provide crucial context for understanding the diverse physiological alterations caused by estrogen deficiency in women.
Collapse
Affiliation(s)
- S J Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Y Jo
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - S J Park
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Ji
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J Y Lee
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Choi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J-Y Baek
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - I Y Jang
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - H-W Jung
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - K Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - D Ryu
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea.
| | - H J Yoo
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
| | - B-J Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
| |
Collapse
|
2
|
Liu EY, Lin EY, Lee A, Venkat PS, Shiao JC, Wong A, Yu A, Hagio MA, Park SJ, Demanes J, Chang AJ. High-Dose Rate Brachytherapy Alone for Treatment of Unfavorable Intermediate Risk Prostate Cancer: A Propensity-Score Matched Analysis. Int J Radiat Oncol Biol Phys 2023; 117:e408-e409. [PMID: 37785355 DOI: 10.1016/j.ijrobp.2023.06.1551] [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) To demonstrate the feasibility of high-dose rate brachytherapy (HDR BT) as monotherapy for unfavorable intermediate risk (UIR) prostate cancer by comparing survival outcomes of HDR BT alone against external beam radiation therapy (EBRT) + HDR BT boost, +/- androgen deprivation therapy (ADT) using propensity-score matched (PSM) data. MATERIALS/METHODS This retrospective study queried two data registries collecting patient data from 1991 to present. 633 patients with UIR prostate cancer treated with HDR BT alone, HDR BT+EBRT or HDR+EBRT+ADT were included. HDR BT patients received 42-45Gy/6 fractions (fx) or 27 Gy/2 fx. For HDR BT+EBRT, the HDR dose was 20-24 Gy/2 fx, 24 Gy/4 fx, or 15 Gy/1 fx. EBRT patients received 45 Gy/25 fx to the prostate +/- pelvic nodes. GU/GI toxicities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Time-to-event analyses were carried out to evaluate the relationship between treatments and five primary endpoints of interest: freedom from biochemical recurrence (FFBC), freedom from distant metastasis (FFDM), freedom from local failure (FFLF), cancer specific survival (CSS), and overall survival (OS) at 5 years. PSM was performed with one-to-n matching. Logistic regression was used to estimate the respective propensity scores. The five potential confounders identified were T-stage, Gleason score, pre-treatment PSA, age, and percent positive cores. Balance was checked using the standardized mean difference of covariates. Univariate and multivariate analyses were conducted on the matched data. Toxicity analysis was performed via association between a change in pre- and post-treatment GU/GI toxicity status and the treatment group, as well as incidence of post-treatment severe GI/GU toxicity (grade 3 or higher) and the treatment group. RESULTS Univariate analysis with Kaplan-Meier method and log rank test comparison between the three cohorts demonstrated no significant difference in all survival outcomes FFBC, FFDM, FFLF, CSS, OS (p = 0.15, 0.19, 0.29, 0.57, 0.28, respectively). Multivariate analysis with Cox proportional hazard regression showed no differences in HR for FFBC and OS (p = 0.95, 0.11) with addition of EBRT, or with EBRT+ADT (p = 0.17, 0.24); no fit was obtainable for FFDM, CSS, FFLF. Toxicities between the three cohorts were not significantly different when comparing post-treatment and baseline GI/GU symptoms (p = 0.53/1). No Grade 2 or 3 GI toxicities were identified, while 8%/1% HDR patients, 10%/1% HDR+EBRT patients, and 12%/2% HDR+EBRT+ADT patients experienced Grade 2/3 GU toxicities. The incidence of grade 3 or higher GU toxicities between the three groups was not significantly different (p = 0.91). CONCLUSION This propensity-score matched study demonstrates the feasibility of HDR BT alone for effective treatment of UIR prostate cancer when compared to HDR+EBRT or HDR+EBRT+ADT, while potentially minimizing the added toxicities of EBRT and the undesirable side effect profile of ADT.
Collapse
Affiliation(s)
- E Y Liu
- Department of Radiation Oncology, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - E Y Lin
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A Lee
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - P S Venkat
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - J C Shiao
- The University of Kansas Cancer Center, Kansas City, KS
| | - A Wong
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A Yu
- University of California, Los Angeles, Los Angeles, CA
| | - M A Hagio
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - S J Park
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - J Demanes
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A J Chang
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| |
Collapse
|
3
|
Kim MG, Bae CR, Oh TS, Park SJ, Jeong JM, Kim DY. Reliability and Validity of Emotrics in the Assessment of Facial Palsy. J Pers Med 2023; 13:1135. [PMID: 37511748 PMCID: PMC10381242 DOI: 10.3390/jpm13071135] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/04/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The globally accepted evaluation method for facial palsy is the House-Brackmann facial grading system; however, it does not reflect minute changes. Several methods have been attempted, but there is no universally accepted evaluation method that is non-time-consuming and quantitative. Recently, Emotrics, a two-dimensional analysis that incorporates machine-learning techniques, has been used in various clinical fields. However, its reliability and validity have not yet been determined. Therefore, this study aimed to examine and establish the reliability and validity of Emotrics. All patients had previously received speech therapy for facial palsy at our hospital between January and November 2022. In speech therapy at our hospital, Emotrics was routinely used to measure the state of the patient's facial palsy. A frame was created to standardize and overcome the limitation of the two-dimensional analysis. Interrater, intrarater, and intrasubject reliability were evaluated with intraclass correlation coefficients (ICC) by measuring the indicators that reflect eye and mouth functions. Validity was evaluated using Spearman's correlation for each Emotrics parameter and the House-Brackmann facial grading system. A total of 23 patients were included in this study. For all parameters, there was significant interrater and intrarater reliability (ICC, 0.61 to 0.99). Intrasubject reliability showed significant reliability in most parameters (ICC, 0.68 to 0.88). Validity showed a significant correlation in two parameters (p-value < 0.001). This single-center study suggests that Emotrics could be a quantitative and efficient facial-palsy evaluation method with good reliability. Therefore, Emotrics is expected to play a key role in assessing facial palsy and in monitoring treatment effects more accurately and precisely.
Collapse
Affiliation(s)
- Min Gi Kim
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Cho Rong Bae
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Tae Suk Oh
- Department of Plastic and Reconstructive Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Sung Jong Park
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jae Mok Jeong
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Dae Yul Kim
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| |
Collapse
|
4
|
Lee S, Lee KH, Park KM, Park SJ, Kim WJ, Lee J, Kronbichler A, Smith L, Solmi M, Stubbs B, Koyanagi A, Jacob L, Stickley A, Thompson T, Dragioti E, Oh H, Brunoni AR, Carvalho AF, Radua J, An SK, Namkoong K, Lee E, Shin JI, Fusar-Poli P. Impact of data extraction errors in meta-analyses on the association between depression and peripheral inflammatory biomarkers: an umbrella review. Psychol Med 2023; 53:2017-2030. [PMID: 34749836 DOI: 10.1017/s0033291721003767] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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] [Indexed: 12/12/2022]
Abstract
BACKGROUND Accumulating evidence suggests that alterations in inflammatory biomarkers are important in depression. However, previous meta-analyses disagree on these associations, and errors in data extraction may account for these discrepancies. METHODS PubMed/MEDLINE, Embase, PsycINFO, and the Cochrane Library were searched from database inception to 14 January 2020. Meta-analyses of observational studies examining the association between depression and levels of tumor necrosis factor-α (TNF-α), interleukin 1-β (IL-1β), interleukin-6 (IL-6), and C-reactive protein (CRP) were eligible. Errors were classified as follows: incorrect sample sizes, incorrectly used standard deviation, incorrect participant inclusion, calculation error, or analysis with insufficient data. We determined their impact on the results after correction thereof. RESULTS Errors were noted in 14 of the 15 meta-analyses included. Across 521 primary studies, 118 (22.6%) showed the following errors: incorrect sample sizes (20 studies, 16.9%), incorrect use of standard deviation (35 studies, 29.7%), incorrect participant inclusion (7 studies, 5.9%), calculation errors (33 studies, 28.0%), and analysis with insufficient data (23 studies, 19.5%). After correcting these errors, 11 (29.7%) out of 37 pooled effect sizes changed by a magnitude of more than 0.1, ranging from 0.11 to 1.15. The updated meta-analyses showed that elevated levels of TNF- α, IL-6, CRP, but not IL-1β, are associated with depression. CONCLUSIONS These findings show that data extraction errors in meta-analyses can impact findings. Efforts to reduce such errors are important in studies of the association between depression and peripheral inflammatory biomarkers, for which high heterogeneity and conflicting results have been continuously reported.
Collapse
Affiliation(s)
- San Lee
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyung Mee Park
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Psychiatry, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Sung Jong Park
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won Jae Kim
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jinhee Lee
- Department of Psychiatry, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | | | - Lee Smith
- The Cambridge Centre for Sport and Exercise Sciences, Anglia Ruskin University, Cambridge CB1 1PT, UK
| | - Marco Solmi
- Department of Psychiatry, University of Ottawa, Ontario, Canada
- Department of Mental Health, The Ottawa Hospital, Ontario, Canada
- Ottawa Hospital Research Institute (OHRI) Clinical Epidemiology Program, University of Ottawa, Ontario, Canada
- Early Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
| | - Brendon Stubbs
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, De Crespigny Park, London SE5 8AF, UK
- Physiotherapy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill, London SE5 8AZ, UK
| | - Ai Koyanagi
- Parc Sanitari Sant Joan de Déu/CIBERSAM, Universitat de Barcelona, Fundació Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
- ICREA, Pg. Lluis Companys 23, Barcelona, Spain
| | - Louis Jacob
- Parc Sanitari Sant Joan de Déu/CIBERSAM, Universitat de Barcelona, Fundació Sant Joan de Déu, Sant Boi de Llobregat, Barcelona, Spain
- Faculty of Medicine, University of Versailles Saint-Quentin-en-Yvelines, Montigny-le-Bretonneux, France
| | - Andrew Stickley
- Stockholm Center for Health and Social Change (SCOHOST), Södertörn University, Huddinge 141 89, Sweden
| | - Trevor Thompson
- Department of Psychology, University of Greenwich, London SE109LS, UK
| | - Elena Dragioti
- Pain and Rehabilitation Centre, and Department of Medical and Health Sciences, Linköping University, SE-581 85 Linköping, Sweden
| | - Hans Oh
- School of Social Work, University of Southern California, CA, USA
| | - Andre R Brunoni
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
- Department of Psychiatry, Service of Interdisciplinary Neuromodulation, Laboratory of Neurosciences (LIM-27) and National Institute of Biomarkers in Neuropsychiatry (INBioN), Institute of Psychiatry, University of Sao Paulo, Sao Paulo, Brazil
- Departamento de Clínica Médica, Hospital Universitario, Faculdade de Medicina da USP, São Paulo, Brazil
| | - Andre F Carvalho
- Centre for Addiction and Mental Health (CAMH), Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Joaquim Radua
- Early Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
- Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institute, Stockholm, Sweden
- Imaging of Mood- and Anxiety-Related Disorders (IMARD) Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERSAM, Barcelona, Spain
| | - Suk Kyoon An
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kee Namkoong
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Lee
- Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Paolo Fusar-Poli
- Early Psychosis: Interventions and Clinical-Detection (EPIC) Lab, Institute of Psychiatry, Psychology and Neuroscience, Department of Psychosis Studies, King's College London, London, UK
- OASIS service, South London and Maudsley NHS Foundation Trust, London, UK
- Department of Brain and Behavioural Sciences, University of Pavia, Pavia, Italy
| |
Collapse
|
5
|
Park SJ, Kim H, Piao M, Kang HJ, Fassah DM, Jung DJS, Kim SY, Na SW, Beak SH, Jeong IH, Yoo SP, Hong SJ, Lee DH, Lee SH, Haque MN, Shin DJ, Kwon JA, Jo C, Baik M. Effects of genomic estimated breeding value and dietary energy to protein ratio on growth performance, carcass trait, and lipogenic gene expression in Hanwoo steer. Animal 2023; 17:100728. [PMID: 36870258 DOI: 10.1016/j.animal.2023.100728] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
"Genome-based precision feeding" is a concept that involves the application of customised diets to different genetic groups of cattle. We investigated the effects of the genomic estimated breeding value (gEBV) and dietary energy to protein ratio (DEP) on growth performance, carcass traits, and lipogenic gene expression in Hanwoo (Korean cattle) steers. Forty-four Hanwoo steers (BW = 636 kg, age = 26.9 months) were genotyped using the Illumina Bovine 50 K BeadChip. The gEBV was calculated using genomic best linear unbiased prediction. Animals were separated into high gEBV of marbling score or low-gMS groups based on the upper and lower 50% groupings of the reference population, respectively. Animals were assigned to one of four groups in a 2 × 2 factorial arrangement: high gMS/high DEP (0.084 MJ/g), high gMS/low DEP (0.079 MJ/g), low gMS/high DEP, and low gMS/low DEP. Steers were fed concentrate with a high or low DEP for 31 weeks. The BW tended to be higher (0.05 < P < 0.1) in the high-gMS groups compared to the low-gMS groups at 0, 4, 8, 12, and 20 weeks. The average daily gain (ADG) tended to be lower (P = 0.08) in the high-gMS group than in the low-gMS group. Final BW and measured carcass weight (CW) were positively correlated with the gEBV of carcass weight (gCW). The DEP did not affect ADG. Neither the gMS nor the DEP affected the MS and beef quality grade. The intramuscular fat (IMF) content in the longissimus thoracis (LT) tended to be higher (P = 0.08) in the high-gMS groups than in the low-gMS groups. The mRNA levels of lipogenic acetyl-CoA carboxylase and fatty acid binding protein 4 genes in the LT were higher (P < 0.05) in the high-gMS group than in the low-gMS group. Overall, the IMF content tended to be affected by the gMS, and the genetic potential (i.e., gMS) was associated with the functional activity of lipogenic gene expression. The gCW was associated with the measured BW and CW. The results demonstrated that the gMS and the gCW may be used as early prediction indexes for meat quality and growth potential of beef cattle.
Collapse
Affiliation(s)
- S J Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - M Piao
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H J Kang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D M Fassah
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D J S Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S Y Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S W Na
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S-H Beak
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - I H Jeong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S P Yoo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S J Hong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - S H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - M N Haque
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D-J Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - J A Kwon
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - C Jo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea
| | - M Baik
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea.
| |
Collapse
|
6
|
Lee YH, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Jeong DS, Chang SA. Pattern of pericardial calcification determines the mid-term postoperative outcome after pericardiectomy in chronic constrictive pericarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1797] [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: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Although pericardiectomy is an effective treatment of constrictive pericarditis (CP), clinical outcome is not always successful. Pericardial calcification is a unique finding in CP. However, the amount and localization of calcification vary. Computer tomography (CT) can visualize the pericardial calcification with high sensitivity and provide the anatomical assessment.
Purpose
We investigated that how the pattern and amount of pericardial calcification affect the mid-term postoperative outcome after pericardiectomy in CP.
Methods
All of the patients who underwent total pericardiectomy in our hospital from 2010 to 2020 were derived from electrical medical records (n=105). Among them, preoperative CT scans (non-gated non-contrast) of 98 patients were available and, thus, 98 consecutive patients were finally analyzed. Medical records were reviewed in a retrospective manner. Cardiovascular event is defined as cardiovascular death or hospitalization associated with a heart failure symptom and all cause event is defined as all events that require admission. CT scan was analyzed by Aquarius Workstation, and the volume and localization pattern of pericalcification were derived. Pericardium calcium score was given as an Agatston score.
Results
Of 98 patients, 25 (25.5%) patients were hospitalized with heart failure symptom after pericardiectomy. Median follow up duration of patients is 172 weeks. A group with cardiovascular event had higher NYHA grade (P<0.001), lower calcium volume (P=0.004), and lower calcium score (P=0.01). Multivariate cox proportional analysis showed that high ln(calcium score) before pericardiectomy was dependent predictor of cardiovascular event (hazard ratio, 0.90; P=0.04) and all cause event (hazard ratio, 0.91, P=0.04) after pericardiectomy. When we set the cut off value at 7.22, based on ROC curve, there was a significant difference in cardiovascular event between the groups divided by this cutoff value in Kaplan-Meier curve (P=0.002) and multivariate cox proportional analysis (P=0.04). In the subgroup analysis, myocardium invasion and circumferential calcification were more common in the high calcium score group. Idiopathic & tuberculosis pericarditis were more associated with high calcium score group and post-operative pericarditis, other reasons (infection, radiation, etc) were more associated with low calcium group.
Conclusion
Low burden of pericardial calcification was associated high rate of mid-term clinical event after pericardiectomy CP. Preoperative evaluation of pericardial calcification pattern can be used as predictor of postoperative outcomes.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- Y H Lee
- Sungkyunkwan University School of Medicine , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Radiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - D S Jeong
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| |
Collapse
|
7
|
Lee HJ, Park CS, Lee S, Park JB, Kim HK, Park SJ, Kim YJ, Lee SP. Systemic proinflammatory-profibrotic response in aortic stenosis patients with diabetes and its relationship with myocardial remodeling and clinical outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1621] [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: 11/12/2022] Open
Abstract
Abstract
Background
It is unclear whether and how diabetes mellitus may aggravate myocardial fibrosis and remodeling in the pressure-overloaded heart. We investigated the impact of diabetes on the prognosis of aortic stenosis (AS) patients and its underlying mechanisms using comprehensive noninvasive imaging studies and plasma proteomics.
Methods
Severe AS patients undergoing both echocardiography and cardiovascular magnetic resonance (CMR) (n=253 of which 66 had diabetes) comprised the imaging cohort. The degree of replacement and diffuse interstitial fibrosis by late gadolinium enhancement (LGE) and extracellular volume fraction (ECV) was quantified using CMR. Plasma samples were analyzed with the multiplex proximity extension assay for 92 proteomic biomarkers in a separate biomarker cohort of severe AS patients (n=100 of which 27 had diabetes).
Results
In the imaging cohort, diabetic patients were older (70.4±6.8 vs. 66.7±10.1 years) and had a higher prevalence of ischemic heart disease (28.8% vs. 9.1%), with more advanced ventricular diastolic dysfunction. On CMR, diabetic patients had increased replacement and diffuse interstitial fibrosis (LGE% 0.3 [0.0–1.6] versus 0.0 [0.0–0.5], p=0.009; ECV% 27.9 [25.7–30.1] versus 26.7 [24.9–28.5], p=0.025) (Figure 1).
Plasma proteomics analysis of the biomarker cohort revealed that 9 proteins (E-selectin, interleukin-1 receptor type 1, interleukin-1 receptor type 2, galectin-4, intercellular adhesion molecule 2, integrin beta-2, galectin-3, growth differentiation factor 15, and cathepsin D) are significantly elevated in diabetic AS patients (Figure 2). Pathway over-representation analyses of the plasma proteomics with Gene Ontology terms indicated that pathways related to inflammatory response and extracellular matrix components were enriched, suggesting that diabetes is associated with systemic effects that evoke proinflammatory and profibrotic response to the pressure-overloaded myocardium.
During follow-up (median 6.3 years [IQR 5.2–7.2]) of the imaging cohort, 232 patients received aortic valve replacement (AVR) with 53 unexpected heart failure admissions or death. Diabetes was a significant predictor of heart failure and death, independent of clinical covariates and AVR (hazard ratio 1.88, 95% confidence interval 1.06–3.31, p=0.030).
Conclusion
Plasma proteomic analyses indicate that diabetes potentiates the systemic proinflammatory and profibrotic milieu in AS patients. These systemic biological changes underlie the increase of myocardial fibrosis, diastolic dysfunction, and worse clinical outcomes in severe AS patients with concomitant diabetes.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): National Research Foundation of Korea
Collapse
Affiliation(s)
- H J Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - C S Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Asan Medical Center, Internal Medicine , Seoul , Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Imaging Center , Seoul , Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| |
Collapse
|
8
|
Kim MS, Jeon KN, Lee SC, Yang JH, Kim EK, Park SJ, Park SW, Chang SA. Role of combined exercise stress echocardiography and cardiopulmonary exercise test in chronic thromboembolic disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1879] [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
Chronic thromboembolic pulmonary disease (CTEPD) without pulmonary hypertension could cause significant exercise limitations. However, interventional or surgical treatments for CTEPD with mild pulmonary hypertension or normal pressure are on controversy.
Purpose
We aimed to evaluate cardiopulmonary function through cardiopulmonary exercise test (CPET) with stress echocardiography and to determine whether exercise pulmonary hypertension can explain exercise limitations in CTEPD patients with mPAP <30mmHg.
Methods
Patients diagnosed as CTEPD with mPAP less than 30mmHg was derived from our pulmonary hypertension center registry from April 2014 to October 2021.Transthoracic echocardiography (TTE) was performed at baseline (resting state) and immediately after CPET. TTE derived parameters and CPET parameters were compared with hemodynamic parameters measured by right catheterization.
Results
Total 37 patients were enrolled. Of these, Thirty-five patients had previously been diagnosed with CTEPH and had undergone PEA, BPA, or both. Most of the patients complained dyspnea of WHO functional class II or III. Pulmonary vascular resistance (PVR) was slightly higher than normal (185.0±102.2 dyne sec cm–5). Also VO2max was decreased in CPET (23.1±6.5 mL/kg/min). In correlation analysis, the higher the mPAP and PVR at rest, the lower VO2max during exercise. Meanwhile basal right ventricular (RV) function was normal, an increase in RVSP was notably observed during exercise (RVSP: pre-exercise 36.2±11.9, post-exercise 60.7±19.3, p value <0.001). Furthermore RV function deteriorated during exercise (TAPSE: pre-exercise 16.1±4.8, post-exercise 12.9±5.0, p value <0.001).
Conclusions
CTEPD patients with mild or normal PAP showed limited exercise capacity with exercise induced hypertension. Even in the mPAP less than 30mmHg, PVR and mPAP was significantly associated with exercise capacity. CPET with stress echocardiography could help to identify the main cause of exercise limitation in CTEPD patients and possibly provide the guideline for treatment plan.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- M S Kim
- Samsung Changwon Hospital , Changwon , Korea (Republic of)
| | - K N Jeon
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - J H Yang
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| |
Collapse
|
9
|
Bak M, Choi KH, Kim JH, Park TK, Kim EK, Kim SM, Choi SH, Park SJ. Risk factors and clinical effects of late leaflet thrombosis after transcatheter aortic valve replacement. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1569] [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
As the indications for trans-catheter aortic valve replacement (TAVR) expand, it is expected that the number of TAVR patients would increase and the follow-up duration would be longer. It is known that the incidence of leaflet thrombosis is higher in TAVR than in surgical aortic valve replacement (SAVR), but not much is known about the risk factors of late leaflet thrombosis in TAVR.
Aim
Therefore, in this study, the incidence and risk factors of late leaflet thrombosis at late term after TAVR and the effect on clinical course of late leaflet thrombosis would be investigated.
Method
There were 176 patients undergone TAVR from January 2015 to October 2020 in one tertiary hospital of south korea. 94 patients had follow-up cardiovascular computed tomography (CT) between 3 months and 2 years after TAVR. Among 94 patients, late leaflet thrombosis was discovered at 20 patients, and risk factors were analyzed by comparing clinical factors, echocardiographic and cardiovascular CT information, and angiographic data between the group with and without late leaflet thrombosis. And the difference in aortic valve hemodynamics between the group with and without leaflet thrombosis was examined and clinical outcomes were compared. Clinical outcome was defined as the composite of all-cause death, stroke, heart failure (HF) admission, redo-aortic valve (AV) replacement and major bleeding after detection of late leaflet thrombosis.
Results
Indexed mean sinus of Valsalva diameter, AV calcium score and post procedure estimated orifice area (EOA) had predictability of late leaflet thrombosis with AUC value of 0.670 (95% CI [0.546–0.795], p value = 0.020), AUC value of 0.698 (95% CI [0.544–0.851], p value = 0.012) and AUC value of 0.665 (95 percent CI [0.548–0.782], p value = 0.031), respectively (Figure 1).
In echocardiography performed at the time of follow-up CT, AV max velocity and AV mean pressure gradient were higher in thrombosis group and EOA and Doppler velocity index were lower in thrombosis group than in no thrombosis group within normal range (Figure 2). Clinical outcome was not significant different between the two groups (log rank p value = 0.560).
Conclusion
Larger indexed sinus of Valsalva diameter, higher AV calcium score and smaller post procedure AV EOA were risk factors for late leaflet thrombosis after TAVR. Subclinical late leaflet thrombosis have a benign course when properly managed.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- M Bak
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - K H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - J H Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - T K Park
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| |
Collapse
|
10
|
Jin U, Park SJ, Park SM. Critical roles of Parkin and PINK1 in antiviral immunity and protection from cell death in Enterovirus-induced viral myocarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1067] [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
Myocarditis is an inflammatory disease of the heart muscle often resulting in cardiac dysfunction and death. One of the most common causes is a cardiac infection with viruses, especially with enteroviruses of the Coxsackievirus B (CVB) family. CVB3-induced viral myocarditis is a well-established model to elucidate viral myocarditis in mice. It is assumed that mitochondrial damage control and mitochondria-associated innate immunity is essential for defence against viral infection of the heart muscle. And Parkinson's disease genes Parkin and PINK1 are well known for their critical function in mitochondrial homeostasis and damage control. We investigated the roles of Parkin and PINK1 in CVB3-induced viral myocarditis mouse model.
Material and methods
Male C57BL/6J WT, Parkin KO and PINK1 KO mice were used in an age of 8 to 12 weeks. The animals were injected intraperitoneally with 1x104 plaque forming units of CVB3 diluted in phosphate-buffered saline. Control and survived virus-infected mice were sacrificed for tissue sampling at day 7 to investigate imaging and molecular workup.
Result
After virus inoculation, the Parkin KO and PINK1 KO groups showed a significantly lower 28-day survival rate compared with the WT group (p<0.001 in Parkin KO; p<0.001 in PINK1 KO). Evans-Blue Dye (EBD) staining image of day 7 after virus-infection showed that the hearts of Parkin KO and PINK1 KO mice were more severely damaged than the hearts of WT mice (3.2-fold, p<0.01 in Parkin KO; 2.6-fold, p<0.05 in PINK1 KO). H&E staining showed that severe inflammatory reaction occurred in the hearts of WT mice, although the inflammatory reaction was much lower compared to WT in the hearts of Parkin KO and PINK1 KO mice (p<0.001 in Parkin KO; p<0.001 in PINK1 KO). In immunohistochemistry, EBD staining positive area colocalized well with CVB3 in Parkin KO and PINK1 KO mice hearts, although EBD staining positive area was rare and didn't colocalized well CVB3 in WT mice hearts. mRNA levels of cell markers (CD3, natural cytotoxicity receptors, F4/80), inflammatory cytokines (IL-1β, IL-6, TNF-α), type II interferon, macrophage-derived protective factors, and CXCL10 family cytokines were lower in virus-infected Parkin/PINK1 KO mice than WT mice. Western blots showed that phospho-p65 increased less than WT in the heart of Parkin KO (0.7-fold, p<0.05) and PINK1 KO mice (0.58-fold, p<0.05).
Conclusion
The Parkin KO and PINK1 KO mice showed a higher mortality rate and more severe cardiomyocyte damage than the WT mice in the viral myocarditis mouse model. Parkin and PINK1 is critical to the type II IFN pathway that inhibits virus replication. And Parkin and PINK1 play an important role in the recruitment of IFN-γ-producing lymphocytes through NF-κB pathway and CXCL10 family chemokines.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- U Jin
- Ajou University Hospital, Department of Cardiology , Suwon , Korea (Republic of)
| | - S J Park
- Asan Medical Center, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S M Park
- Ajou University School of Medicine, Department of Pharmacology , Suwon , Korea (Republic of)
| |
Collapse
|
11
|
Lee KH, Li H, Lee MH, Park SJ, Kim JS, Han YJ, Cho K, Ha B, Kim SJ, Jacob L, Koyanagi A, Shin JI, Kim JH, Smith L. Clinical characteristics and treatments of multi-system inflammatory syndrome in children: a systematic review. Eur Rev Med Pharmacol Sci 2022; 26:3342-3350. [PMID: 35587087 DOI: 10.26355/eurrev_202205_28754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Multisystem inflammatory syndrome in children (MIS-C) can occur in association with coronavirus disease 2019 (COVID-19). It is not easy to differentiate MIS-C from severe COVID-19 or Kawasaki disease based on symptoms. The aim of this study was to describe the clinical and laboratory characteristics of MIS-C. PATIENTS AND METHODS We searched PubMed/Medline for case series and reports of MIS-C published until June 20, 2020. From a total of nine articles involving 45 cases, various clinical and laboratory data were extracted. Each target case was evaluated by using different diagnostic criteria. RESULTS The average age at onset of MIS-C was 8.6 years. In 80% of cases, the age of patients ranged from 5 to 15 years. Fever (100%) and shock (82%) were the most common presenting symptoms. Sixty percent of cases met the diagnostic criteria for typical or atypical Kawasaki disease. Biomarkers indicative of inflammation, coagulopathy, or cardiac injury were characteristically elevated as follows: ferritin (mean: 1,061 ng/mL), CRP (217 mg/L), ESR (69 mm/hr), IL-6 (214.8 pg/mL), TNFα (63.4 pg/mL), D-dimer (3,220 ng/mL), PT (15.5 s), troponin I (1,006 ng/L), and BNP (12,150 pg/mL). Intravenous immunoglobulin was administered in all target cases, and inotropic agents were commonly used as well. No case of death was observed. CONCLUSIONS This study demonstrated that MIS-C is a serious condition that presents with fever, rash, as well as cardiovascular and gastrointestinal symptoms. Although it is challenging to differentiate MIS-C from Kawasaki disease or severe COVID-19, initiation of appropriate treatments through early diagnosis is warranted.
Collapse
Affiliation(s)
- K H Lee
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Lee HJ, Jeong GH, Li H, Kim MS, Kim JS, Park SJ, Han YJ, Lee KH, Kronbichler A, Hong SH, Ghayda RA, Luchini C, Nottegar A, Koyanagi A, Smith L, Jacob L, Dragioti E, Radua J, Cargnin S, Terrazzino S, Thompson T, Yon DK, Lee SW, Yang JM, Wasuwanich P, Shin JI, Gamerith G. Efficacy and safety of epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) monotherapy for advanced EGFR-mutated non-small cell lung cancer: systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2021; 25:6232-6244. [PMID: 34730203 DOI: 10.26355/eurrev_202110_26993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE It is controversial whether there is efficacy or safety benefit of epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) in advanced EGFR-mutated non-small cell lung cancer (NSCLC) compared to standard chemotherapy. We aim to assess the efficacy and safety of EGFR-TKIs compared to other chemotherapeutics in EGFR-mutated NSCLC. MATERIALS AND METHODS Up to April 27th, 2020, PubMed, Embase, Medline, Scopus, Cochrane library, and ClinicalTrials.gov were searched for articles or trials meeting the inclusion criteria. After filtering, 230 eligible studies were initially identified. Data extraction followed PRISMA and included outcomes were progression-free survival (PFS), overall survival (OS), and severe adverse events (SAEs). Direct and indirect meta-analyses were generated in the context of log-linear mixed-effects models, with fixed effects for each relative comparison and random effects for each study. RESULTS The results showed that EGFR-TKI therapy had improved PFS with a hazard ratio (HR) of 0.40 (95% CI: 0.36-0.44, p<0.001) compared to standard chemotherapy. Nevertheless, the EGFR-TKIs showed no benefit on OS (HR: 0.96, 95% CI: 0.83-1.10, p=0.556). In the analysis of adverse events, EGFR-TKIs had fewer SAEs than standard chemotherapy (HR: 0.29, 95% CI: 0.26-0.33, p<0.001). CONCLUSIONS Our systemic review indicates that EGFR-TKI therapy has improved PFS, and reduced SAEs compared to standard chemotherapy in advanced EGFR-mutated NSCLC.
Collapse
Affiliation(s)
- H J Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Han KH, Lee KH, Park SJ, Yu R, Kim SH, Lee IR, Han SY, Kim HS, Kronbichler A, Li H, Koyanagi A, Jacob L, Shin JI, Kim JH, Smith L. Hypocomplementemia (C3) as an independent predictor for children with acute post-streptococcal glomerulonephritis: a long-term observation. Eur Rev Med Pharmacol Sci 2021; 25:5674-5683. [PMID: 34604959 DOI: 10.26355/eurrev_202109_26786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The aim of this study was to examine the altering patterns in clinical characteristics and severity of acute post-streptococcal glomerulonephritis (APSGN) in children. PATIENTS AND METHODS We analyzed the medical records of 119 children who were diagnosed with APSGN from 1987 to 2018, retrospectively. The patients were divided into two groups: Group I (n=72, before 1998) and Group II (n=47, after 1998). Clinical, radiologic, and laboratory findings were compared between the two groups. RESULTS The clinical manifestations, including vomiting (20.8% vs. 4.3%, p=0.014), oliguria (40.3% vs. 19.1%, p=0.016), and generalized edema (86.1% vs. 63.8%, p=0.005), were statistically less frequent since 1998. Pulmonary edema on chest X-ray (22.7% vs. 4.4%, p=0.014) was less frequent in Group II than in Group I. The level of BUN (23.3±19.3 vs. 18.8±11.2, p=0.009) was lower in Group II than in Group I, while that of creatinine was not significantly different between the two groups. C3 level was an independent factor for predicting the development of edema (odds ratio [OR]: 1.034, 95% CI: 1.010-1.060, p=0.006) and acute nephritic symptoms (≥2) (OR: 0.974, 95% CI: 0.952-0996, p=0.020). It was also negatively correlated with an increasing number of acute nephritic symptoms, including oliguria and edema, in patients with APSGN (R=-0.182, p=0.048). CONCLUSIONS This study demonstrated that APSGN had favorable clinical manifestations and severity over the past 30 years. The monitoring of C3 levels can be used to assess the disease severity and risk of complications, including edema and oliguria, which are decreasing in South Korean children.
Collapse
Affiliation(s)
- K H Han
- Department of Pediatrics, Jeju National University School of Medicine, Jeju, Republic of Korea.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Lee H, Noh EB, Park SJ, Nam HK, Lee TH, Lee GR, Nam EW. COVID-19 Vaccine Perception in South Korea: Web Crawling Approach. JMIR Public Health Surveill 2021; 7:e31409. [PMID: 34348890 PMCID: PMC8428376 DOI: 10.2196/31409] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/18/2021] [Accepted: 08/04/2021] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The US Centers for Disease Control and Prevention and the World Health Organization emphasized vaccination against COVID-19 because physical distancing proved inadequate to mitigate death, illness, and massive economic loss. OBJECTIVE This study aimed to investigate Korean citizens' perceptions of vaccines by examining their views on COVID-19 vaccines, their positive and negative perceptions of each vaccine, and ways to enhance policies to increase vaccine acceptance. METHODS This cross-sectional study analyzed posts on NAVER and Instagram to examine Korean citizens' perception of COVID-19 vaccines. The keywords searched were "vaccine," "AstraZeneca," and "Pfizer." In total 8100 posts in NAVER and 5291 posts in Instagram were sampled through web crawling. Morphology analysis was performed, overlapping or meaningless words were removed, sentiment analysis was implemented, and 3 public health professionals reviewed the results. RESULTS The findings revealed a negative perception of COVID-19 vaccines; of the words crawled, the proportion of negative words for AstraZeneca was 71.0% (476/670) and for Pfizer was 56.3% (498/885). Among words crawled with "vaccine," "good" ranked first, with a frequency of 13.43% (312/2323). Meanwhile, "side effect" ranked highest, with a frequency of 29.2% (163/559) for "AstraZeneca," but 0.6% (4/673) for "Pfizer." With "vaccine," positive words were more frequently used, whereas with "AstraZeneca" and "Pfizer" negative words were prevalent. CONCLUSIONS There is a negative perception of AstraZeneca and Pfizer vaccines in Korea, with 1 in 4 people refusing vaccination. To address this, accurate information needs to be shared about vaccines including AstraZeneca, and the experiences of those vaccinated. Furthermore, government communication about risk management is required to increase the AstraZeneca vaccination rate for herd immunity before the vaccine expires.
Collapse
Affiliation(s)
- Hocheol Lee
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Eun Bi Noh
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
- Department of Health Administration, Yonsei University Graduate School, Wonju, Republic of Korea
| | - Sung Jong Park
- Department of Information Statistics, Yonsei University Graduate School, Wonju, Republic of Korea
| | - Hae Kweun Nam
- Department of Preventive Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea
| | - Tae Ho Lee
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Ga Ram Lee
- Department of Information Statistics, Yonsei University Graduate School, Wonju, Republic of Korea
| | - Eun Woo Nam
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
- Department of Health Administration, Yonsei University Graduate School, Wonju, Republic of Korea
| |
Collapse
|
15
|
Lee H, Park SJ, Kim JE, Kong F, Zhao B, Nam H, Koh SB, Nam S, Yuasa M, Aung MN, Medina JRC, Palutturi S, Berhe H, Terefe E, Nam S, Kang Y, Rönnebeck N, Lee JH, Lee GR, Jung Y, Cosme CR, Shin DE, Herrera M, Ndombi GO, Mansiangi P, Moon SJ, Yoon H, Chung MA, Lim SB, Lee YL, Kim D, Nam EW. International Comparison of Depression During the COVID-19 Pandemic Among University Students in 13 Countries: A Web-Based Cross-Sectional Survey. Asia Pac J Public Health 2021; 33:928-931. [PMID: 34350800 PMCID: PMC8592100 DOI: 10.1177/10105395211034062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Hocheol Lee
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | - Ji Eon Kim
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | - Bo Zhao
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Haekweun Nam
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Sang Baek Koh
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | | | | | | | | | | | | | - Seungwoo Nam
- Korea International Cooperation Agency, Gyeonggi-do, Republic of Korea
| | - Yanghee Kang
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | - Ji Ho Lee
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Ga Ram Lee
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Yeseul Jung
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | - Dong Eun Shin
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | | | | | - Paul Mansiangi
- Kinshasa University, Kinshasa, Democratic Republic of the Congo
| | - Seok Jun Moon
- Korea Institute for Health and Social Affair, Se Jong, Republic of Korea
| | - Hyejin Yoon
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Min Ah Chung
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Su Been Lim
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Yu Lim Lee
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| | - Dohyeong Kim
- Korea International Cooperation Agency, Gyeonggi-do, Republic of Korea
| | - Eun Woo Nam
- Yonsei University, Wonju, Gangwon-do, Republic of Korea
| |
Collapse
|
16
|
Park SJ, Han HS, Shin SH, Yoo KH, Li K, Kim BJ, Seo SJ, Park KY. Adverse skin reactions due to use of face masks: a prospective survey during the COVID-19 pandemic in Korea. J Eur Acad Dermatol Venereol 2021; 35:e628-e630. [PMID: 34131961 PMCID: PMC8447351 DOI: 10.1111/jdv.17447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S H Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| |
Collapse
|
17
|
Park SJ, Park YH. Simplified technique of in-office secondary tracheoesophageal puncture with immediate voice prosthesis placement under transnasal esophagoscope guidance. Eur Ann Otorhinolaryngol Head Neck Dis 2021; 138 Suppl 2:53-54. [PMID: 34116948 DOI: 10.1016/j.anorl.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/17/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Affiliation(s)
- S J Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 10 63-ro, Yeongdeungpo-gu, Seoul, 07345, Korea
| | - Y H Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 10 63-ro, Yeongdeungpo-gu, Seoul, 07345, Korea.
| |
Collapse
|
18
|
Park SJ, Park JW, Ahn GR, Choi SY, Yoo KH, Li K, Kim BJ. A study of the microbiological profile of filler-induced skin necrosis. Clin Exp Dermatol 2021; 46:901-905. [PMID: 33763910 DOI: 10.1111/ced.14653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
Skin necrosis is one of the most severe complications following filler injections, and can result in permanent aesthetic defects. Although an increasing number of studies have addressed the management of dermal filler complications, no study has described the spectrum of microbial pathogens. The aim of this study was to delineate the bacterial profile and prognostic factors of filler-related skin necrosis by reviewing the clinical and microbiological features of these patients. A retrospective medical record review of patients undergoing treatment for skin necrosis induced by fillers was conducted. In total, 10 cases were identified, with injection sites being the nasolabial fold (70%; n = 7), nasal dorsum (20%; n = 2) and nasal tip (10%; n = 1). Reviewing the culture results, the true culture-positive rate was found to be 50% after cases of contamination were excluded. To avoid permanent sequelae, all physicians should be aware of possible secondary infections when treating filler-induced skin necrosis.
Collapse
Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - G R Ahn
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S Y Choi
- Department of Dermatology, Seoul Paik Hospital, Inje University, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| |
Collapse
|
19
|
Kang SH, Park SJ, Park JW, Kim WS, Seo SJ. Paradoxical darkening following picosecond laser and successful treatment. Clin Exp Dermatol 2021; 46:1128-1129. [PMID: 33774841 DOI: 10.1111/ced.14661] [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] [Accepted: 03/24/2021] [Indexed: 11/28/2022]
Affiliation(s)
- S H Kang
- Departments of Plastic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Park
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - J W Park
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - W S Kim
- Departments of Plastic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| |
Collapse
|
20
|
Park SJ, Zonetti S, Parker-Jervis RS, Wu J, Wood CD, Li LH, Davies AG, Linfield EH, Sydoruk O, Cunningham JE. Terahertz magnetoplasmon resonances in coupled cavities formed in a gated two-dimensional electron gas. Opt Express 2021; 29:12958-12966. [PMID: 33985041 DOI: 10.1364/oe.414178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
We report on both experiments and theory of low-terahertz frequency range (up to 400 GHz) magnetoplasmons in a gated two-dimensional electron gas at low (<4K) temperatures. The evolution of magnetoplasmon resonances was observed as a function of magnetic field at frequencies up to ∼400 GHz. Full-wave 3D simulations of the system predicted the spatial distribution of plasmon modes in the 2D channel, along with their frequency response, allowing us to distinguish those resonances caused by bulk and edge magnetoplasmons in the experiments. Our methodology is anticipated to be applicable to the low temperature (<4K) on-chip terahertz measurements of a wide range of other low-dimensional mesoscopic systems.
Collapse
|
21
|
Yoo KH, Park SJ, Han HS, Won CH, Lee YW, Kim BJ. Randomized, double-blind, active-controlled, multicentre, phase III clinical trial with two stages to assess the safety and efficacy of letibotulinum toxin a vs. onabotulinum toxin a for subjects with moderate to severe crow's feet. J Eur Acad Dermatol Venereol 2021; 35:1587-1594. [PMID: 33721365 DOI: 10.1111/jdv.17217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/24/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Letibotulinum toxin A (LeBA) was approved by the Ministry of Food and Drug Safety (known as the Korea Food & Drug Administration) for cosmetic indications in 2012. However, the efficacy and safety of this newly introduced LeBA have not been investigated in crow's feet lines (CFL) treatment and standardization before its universal use. OBJECTIVE The aim of this multicentre, double-blind, randomized, parallel, active-controlled Phase III clinical trial with two stages (ClinicalTrials.gov identifier: NCT03408236) was to investigate the non-inferiority of LeBA vs. the existing onabotulinum toxin A (OnBA) for the treatment of CFL. METHODS A total of 240 subjects were randomized to either the test (LeBA) or control (OnBA) group. At the baseline and at weeks 4 while maximum smiling (primary efficacy assessment), 8, 12 and 16, investigator's on-site evaluation, independent evaluator, evaluation by the subjects, subjects' satisfaction assessment and safety assessment were performed. RESULTS At week 4, the response rate of primary efficacy assessment was 69.75% and 68.33% in the test (LeBA) and control (OnBA) groups, respectively, without a significant difference. Other minor secondary evaluation results showed significant differences suggesting that LeBA offered better improvement than OnBA, but the overall results did not show significant differences between the two groups. CONCLUSION This study showed that LeBA was as effective and safe as OnBA for the treatment of CFL at the same doses.
Collapse
Affiliation(s)
- K H Yoo
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - S J Park
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - H S Han
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - C H Won
- Department of Dermatology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Y W Lee
- Department of Dermatology, College of Medicine, Konkuk University Hospital, Seoul, Korea
| | - B J Kim
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| |
Collapse
|
22
|
Park SJ, Park JW, Park KY, Li K, Seo SJ, Kim BJ, Yoo KH. Systemic contact dermatitis induced by Rhus allergens in Korea: exercising caution in the consumption of this nutritious food. Clin Exp Dermatol 2020; 46:324-327. [PMID: 32974941 DOI: 10.1111/ced.14458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/11/2020] [Accepted: 09/16/2020] [Indexed: 11/29/2022]
Abstract
Systemic contact dermatitis (SCD) develops when a person who was previously sensitized to an allergen is exposed to the same allergen via the systemic route. In East Asia, the use of lacquer for polishing furniture is common and a part of the traditional culture. Contact exposure to tableware polished with Rhus lacquer may lead to sensitization. In Korea, SCD is commonly observed after systemic exposure to Rhus, a nutritious food item consumed because of the common belief of it improving the immune system. In this study, we reviewed the medical records of 21 Korean patients with SCD caused by Rhus ingestion. We found that the most significant epidemiological factor for SCD was the season of the year. Furthermore, 66.67% of the patients presented with leucocytosis and 23.81% showed increased liver enzyme levels. It is important to educate people on the risks associated with the systemic ingestion of Rhus.
Collapse
Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| |
Collapse
|
23
|
Lee H, Park SJ, Lee GR, Kim JE, Lee JH, Jung Y, Nam EW. The relationship between trends in COVID-19 prevalence and traffic levels in South Korea. Int J Infect Dis 2020; 96:399-407. [PMID: 32417247 PMCID: PMC7224658 DOI: 10.1016/j.ijid.2020.05.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 01/30/2023] Open
Abstract
OBJECTIVE The World Health Organization (WHO) declared a COVID-19 pandemic on March 12, 2020. Several studies have indicated that densely populated urban environments and the heavy dependence on traffic could increase the potential spread of COVID-19. This study investigated the association between changes in traffic volume and the spread of COVID-19 in South Korea. METHODS This study analyzed the daily national traffic and traffic trend for 3 months from January 1, 2020. Traffic data were measured using 6307 vehicle detection system (VDS). This study analyzed the difference in traffic levels between 2019 and 2020. Non-linear regression was performed to analyze the change in traffic trend in 2020. The relationship between traffic and confirmed COVID-19 cases was analyzed using single linear regression. RESULTS The mean daily nationwide level of traffic for the first 3 months of 2020 was 143 655 563 vehicles, which was 9.7% lower than the same period in 2019 (159 044 566 vehicles). All regions showed a decreasing trend in traffic in February, which shifted to an increasing trend from March. In Incheon there was a positive, but insignificant, linear relationship between increasing numbers of newly confirmed cases and increasing traffic (β = 43 146; p = 0.056). CONCLUSIONS Numbers of newly confirmed COVID-19 patients have been decreasing since March, while the traffic has been increasing. The fact that traffic is increasing indicates greater contact between people, which in turn increases the risk of further COVID-19 spread. Therefore, the government will need to devise suitable policies, such as total social distancing.
Collapse
Affiliation(s)
- Hocheol Lee
- Department of Health Administration, Yonsei University Graduate School, Wonju, Gangwon-do, Republic of Korea
| | - Sung Jong Park
- Department of Applied Statistics, Yonsei University Graduate School, Wonju, Gangwon-do, Republic of Korea
| | - Ga Ram Lee
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Ji Eon Kim
- Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Ji Ho Lee
- Department of Health Administration, Yonsei University Graduate School, Wonju, Gangwon-do, Republic of Korea
| | - Yeseul Jung
- Department of Health Administration, Yonsei University Graduate School, Wonju, Gangwon-do, Republic of Korea
| | - Eun Woo Nam
- Department of Health Administration, College of Health Science, Yonsei University, Wonju, Gangwon-do, Republic of Korea.
| |
Collapse
|
24
|
Gwag HB, Park SJ, Park KM, On YK, Kim JS. 847Interim analysis of the device-detected cardiac tachyarrhythmic events and sleep-disordered breathing (DEDiCATES)" study; focused on baseline characteristics. Europace 2020. [DOI: 10.1093/europace/euaa162.352] [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: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
This work is supported by Boston Scientific.
Background/introduction: Sleep-disordered breathing (SDB) is one of the common comorbidities in cardiac implantable electronic devices (CIED) patients. It’s feasible to detect SDB using specialized diagnostic function of CIEDs showing comparable performance in diagnostic accuracy of SDB to conventional polysomnography. To date, few studies have investigated the prognostic value of CIED-detected SDB in cardiovascular risk.
Purpose
In the Device-Detected CArdiac Tachyarrhythmic events and Sleep-disordered breathing (DEDiCATES) study, we aim to determine whether device-detected sleep-disordered breathing (SDB) events are associated with increased risk of cardiac arrhythmias or other cardiovascular (CV) outcomes. Here, we present interim baseline data of the study population to investigate the baseline prevalence and severity of device-detected SDB in CIED patients.
Methods
The study was designed as a prospective, multicenter, and observational study to include 600 patients. Eligible patients have dual chamber CIEDs with SDB detection function which reports the average number of sleep disturbance events per hour per night in the form of a Respiratory Disturbance Index (RDI). The daily RDI values were collected to measure the severity and burden of SDB. The baseline severity of SDB was determined according to RDI data recorded during the first 1 week, 1 month, and 3 ± 1 months after CIED implantation; patients with RDI≥ 30/h for at least one night are classified into the severe SDB group.
Results
A total of 313 patients who completed the first device interrogation at 3 ± 1 months were included for analysis. The mean age and CHA2DS2VASc score were 69 and 3.1, respectively. Forty-nine percent of patients were men, and 35.5% were classified as high risk for SDB by Berlin questionnaire. The rate of severe SDB increased with longer monitoring period (83.8% at 1week, 91.6% at 1 month, and 96.4% at 3 ± 1 months). There was no baseline demographic difference between the severe and non-severe SDB groups, except that baseline body mass index (BMI) was higher in the severe group (24.5% vs. 21.5%, p = 0.01). The mean RDI was 36.3, 34.2, and 33.0 per night during the first 1 week, 1 month, and 3 ± 1 months, respectively. Considering the limitation of the categorical criteria of baseline severity, we arbitrarily reclassified the patients according to median mean RDI value. Men were more frequent and BMI was higher in the above-mean RDI group compared to the below-mean RDI group. Using logistic regression analysis, we identified that BMI and male gender were associated with patients with above-mean RDI.
Conclusions
Conventional categorical classification of SDB severity seems to be limited in its ability to discriminate high risk patients. Thus, more suitable RDI-related variables need to be identified in future outcome analysis.
Abstract Figure. Prevalence of baseline severe SDB
Collapse
Affiliation(s)
- H B Gwag
- Samsung Changwon Hospital, Changwon, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - K M Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - Y K On
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - J S Kim
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
25
|
Ahn D, Song JD, Kang SS, Lim JY, Yang SH, Ko S, Park SH, Park SJ, Kim DS, Chang HJ, Chang J. Intrinsically p-type cuprous iodide semiconductor for hybrid light-emitting diodes. Sci Rep 2020; 10:3995. [PMID: 32132624 PMCID: PMC7055318 DOI: 10.1038/s41598-020-61021-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 06/11/2019] [Accepted: 01/17/2020] [Indexed: 11/25/2022] Open
Abstract
Cuprous halides, characterized by a direct wide band-gap and a good lattice matching with Si, is an intrinsic p-type I-VII compound semiconductor. It shows remarkable optoelectronic properties, including a large exciton binding energy at room temperature and a very small piezoelectric coefficient. The major obstacle to its application is the difficulty in growing a single-crystal epitaxial film of cuprous halides. We first demonstrate the single crystal epitaxy of high quality cuprous iodide (CuI) film grown on Si and sapphire substrates by molecular beam epitaxy. Enhanced photoluminescence on the order of magnitude larger than that of GaN and continuous-wave optically pumped lasing were found in MBE grown CuI film. The intrinsic p-type characteristics of CuI were confirmed using an n-AlGaN/p-CuI junction that emits blue light. The discovery will provide an alternative way towards highly efficient optoelectronic devices compatible with both Si and III-nitride technologies.
Collapse
Affiliation(s)
- D Ahn
- Peta Lux Inc., 3F TLi Building, 12 Yanghyeon-ro, 405 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13438, Republic of Korea. .,Department of Electrical and Computer Engineering and Center for Quantum Information Processing, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul, 02504, Republic of Korea. .,Physics Department, Charles E. Schmidt College of Science, Florida Atlantic University, 777 Glades Road, Boca Raton, FL, 33431-0991, USA.
| | - J D Song
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology Hwarang-ro 14 gil, Seoungbuk-ku, Seoul, 02792, Republic of Korea.
| | - S S Kang
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology Hwarang-ro 14 gil, Seoungbuk-ku, Seoul, 02792, Republic of Korea.,Department of Physics, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - J Y Lim
- Peta Lux Inc., 3F TLi Building, 12 Yanghyeon-ro, 405 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13438, Republic of Korea
| | - S H Yang
- Peta Lux Inc., 3F TLi Building, 12 Yanghyeon-ro, 405 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13438, Republic of Korea
| | - S Ko
- Peta Lux Inc., 3F TLi Building, 12 Yanghyeon-ro, 405 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13438, Republic of Korea
| | - S H Park
- Electronics Department, Catholic University of Daegu, 13 Hayang-Ro, Hayang-Eup, Gyeongsan-si, Gyeongbuk, 38430, Republic of Korea
| | - S J Park
- WONIK IPS, 75 Jinwisandan-ro, Jinwi-myeon, Pyeingtaek-si, Gyeonggi-do, 17709, Republic of Korea
| | - D S Kim
- TLi Inc., 10 F TLi Building, 12 Yanghyeon-ro, 405 beon-gil, Jungwon-gu, Seongnam-si, Gyeonggi-do, 13438, Republic of Korea
| | - H J Chang
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology Hwarang-ro 14 gil, Seoungbuk-ku, Seoul, 02792, Republic of Korea
| | - Joonyeon Chang
- Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology Hwarang-ro 14 gil, Seoungbuk-ku, Seoul, 02792, Republic of Korea. .,Department of Materials Science & Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. .,Yonsei-KIST Convergence Research Institute, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| |
Collapse
|
26
|
Choi M, Byun SJ, Lee DH, Kim KH, Park KH, Park SJ. The Association with rhegmatogenous retinal detachment and paediatric atopic dermatitis: a 12-year Nationwide Cohort Study. Eye (Lond) 2020; 34:1909-1915. [PMID: 32080352 PMCID: PMC7608199 DOI: 10.1038/s41433-020-0816-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/17/2018] [Revised: 10/23/2019] [Accepted: 12/17/2019] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Historically, atopic dermatitis (AD) is associated with an increased risk of rhegmatogenous retinal detachment (RRD). However, uncertainty remained regarding the effect of AD itself and comorbidities (e.g., allergic diseases, cataract surgery) on RRD occurrence in a large, population-based paediatric population. PATIENTS AND METHODS We analysed the 12-year National Health Insurance Service database (2002-2013) covering the entire Korean population to estimate the association between AD and RRD in people aged under 20 years. RESULTS We identified 3142 RRD patients, and matched 18,852 controls (six controls to each RRD patient); therefore, we included 21,994 peoples under aged 20 years in the analyses. AD was more prevalent in the RRD group (329 patients, 10.47%) than the control group (1043 patients, 5.53%; P < 0.001), and so were severe AD (153 patients [4.87%] and 223 patients [1.18%], respectively; P < 0.001). In conditional logistic regression analysis, AD was associated with RRD (OR, 1.61; 95% CI, 1.93-1.87) even after adjusting for allergic conditions, connective tissue disease, uveitis, and cataract surgery. In addition, severity of AD was associated with an increased risk of RRD (OR for non-severe AD and severe AD, 1.26 [95% CI, 1.05-1.51] and 2.88 [95% CI, 2.25-3.68]). CONCLUSION This study suggests that AD itself is a risk factor of RRD in children by showing the association between AD and RRD occurrence and the biologic gradient even after adjustment for known confounders including allergic conditions, uveitis, and cataract surgery.
Collapse
Affiliation(s)
- M Choi
- Department of Dermatology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Republic of Korea
| | - S J Byun
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - D H Lee
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - K H Kim
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - K H Park
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - S J Park
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
| |
Collapse
|
27
|
Amano M, Izumi C, Kim YJ, Park SJ, Park SW, Tanaka H, Hozumi T, Ling LH, Yu CM, Fukuda S, Otsuji Y, Song JK, Sohn DW. P914 Changes of echocardiographic parameters in primary mitral regurgitation and determinants of symptom: an assessment from the Asian valve registry data. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.550] [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]Clinicians often have a difficulty in determining the presence of mitral regurgitation (MR)-relatedsymptoms because of subjectivity.However, there are few actual measurement data for echocardiographic left ventricular (LV) and left atrial (LA) size related to the severity of MR and the relationship between MR-related symptoms and these echocardiographic parameters.
[Purpose] The purpose of this study was to clarify actual values for echocardiographic parameters related to severity of MR and determinant factors of MR-related symptoms.
[Methods] Among patients enrolled in the Asian Valve Registry, we investigated 778 consecutive patients with primary MR showing sinus rhythm. Symptoms were determined by NYHA (≤ II or ≥ III).
[Results]MR severity was mild in 106, moderate in 285, and severe in 387 patients. LA volume index, LV end-diastolic diameter, and LV mass index increased with increasing MR grade [LA volume index: 47.9 (mild), 56.2 (moderate), and 64.9 ml/m2(severe) (p < 0.001), LV end-diastolic diameter: 51.2, 54.5, 58.1 mm (p < 0.001), and LV mass index: 101, 109, 123 g/m2(p < 0.001)]. Regarding moderate and severe MR, 70 patients (10.4%) were symptomatic. Table shows multivariable analysis for being symptomatic in moderate and severe MR patients. LV mass index (p = 0.040), ejection fraction (p < 0.001), female gender (p = 0.004), and heart rate (p = 0.007) were independent factors for MR-related symptoms.
[Conclusions] LV and LA parameters on echocardiography worsened as MR severity progressed. Larger LV mass index and lower ejection fraction were independent determinant factors for MR-related symptoms. We should also pay attention to LV hypertrophy in patients with primary MR.
Determinant factors for mitral regurgita Model 1 Model 2 OR (95% CI) P-value OR (95% CI) P-value Age, per 1-y increment 1.03 (1.00-1.05) 0.035 1.02 (0.99-1.05) 0.053 Sex (female) 2.23 (1.20-4.16) 0.011 2.28 (1.31-3.98) 0.004 Hear rate, per 1 bpm increment 1.03 (1.00-1.05) 0.025 1.03 (1.01-1.05) 0.007 LVDs index, per 1 mm increment 0.99 (0.90-1.09) 0.90 EF, per 1% increment 0.95 (0.92-0.99) 0.019 0.96 (0.93-0.98) <0.001 LV mass index, per 10 g/m2increment 1.12 (1.01-1.25) 0.033 1.09 (1.005-1.18) 0.040 LA volume index, per 10 mL/m2increment 0.96 (0.90-1.03) 0.23 E wave, per 1cm/s increment 1.81 (0.70-4.66) 0.23 TR pressure gradient >40 mmHg 2.11 (0.97-4.57) 0.057 Hypertention 1.40 (0.75-2.63) 0.29
Collapse
Affiliation(s)
- M Amano
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - C Izumi
- National Cerebral and Cardiovascular Center, Cardiovascular Medicine, Osaka, Japan
| | - Y J Kim
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - H Tanaka
- Kobe University, Cardiovascular Medicine, Kobe, Japan
| | - T Hozumi
- Wakayama Medical University, Cardiovascular Medicine, Wakayama, Japan
| | - L H Ling
- National Heart Centre Singapore, Singapore, Singapore
| | - C M Yu
- The University of Hong Kong, Medicine and Therapeutics, Hong Kong, Hong Kong
| | - S Fukuda
- University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Otsuji
- University of Occupational and Environmental Health, Kitakyushu, Japan
| | - J K Song
- Asan Medical Center, Seoul, Korea (Republic of)
| | - D W Sohn
- Seoul National University Hospital, Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
28
|
Hwang I, Lee JM, Park JB, Yoon YE, Lee SP, Kim HK, Kim YJ, Cho GY, Park SJ, Kim KH, Hong GR. P1368 Effect of angiotensin receptor blocker in patients with moderate or severe aortic stenosis: a randomized controlled trial. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.803] [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: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
This study was supported by grants from Boryung Pharmacy Research Fund.
Background/Introduction: Pathophysiology of aortic stenosis (AS) and several previous studies suggested the potential role of angiotensin receptor blocker (ARB) in patients with AS.
Purpose
We aimed to investigate the effects of Fimasartan, an ARB, on exercise capacity and progression of AS in patients with moderate to severe AS.
Methods
We conducted a prospective, randomized, double-blind, placebo-controlled trial in 32 normotensive or controlled-hypertensive patients with moderate or severe AS. Study participants were randomized to Fimasartan 30 mg to 60 mg daily (n = 14) or placebo (n = 18) for 1 year, and underwent cardiopulmonary exercise test, 6-minute walk test, and echocardiography at 0, 6, and 12 months, with follow-up data available in 29 subjects.
Results
Significant reductions in blood pressures were observed in the Fimasartan group but not in the placebo group. Two of the 14 patients in the Fimasartan group withdrew the study due to mild symptoms probably related with the decreased blood pressure, and one patient decline the study protocol. After the 12-month treatment, the peak oxygen consumption (VO2; the primary outcome) in the Fimasartan group was significantly decreased (from 28.3 ± 5.9 to 25.4 ± 3.8 mL/min/kg, P = 0.021) but not in the placebo group (P for interaction = 0.046) (Figure 1A). The severity of AS showed a gradual progression in both groups, without inter-group differences (mean transaortic pressure; Fimasartan group, +4.0 ± 3.8 mmHg/year; placebo group, +5.3 ± 6.2 mmHg/year; P for interaction = 0.429) (Figure 1B). Parameters of left ventricular systolic and diastolic function did not change in both groups.
Conclusions
The use of ARB impaired exercise capacity in patients with moderate or severe AS, and did not prevent the progression of AS. However, due to the small number of participants, further studies are required to confirm these findings.
Abstract P1368 Figure.
Collapse
Affiliation(s)
- I Hwang
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - J M Lee
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y E Yoon
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - G Y Cho
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Center, Seoul, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Gwangju, Korea (Republic of)
| | - G R Hong
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| |
Collapse
|
29
|
Yoon SA, Cha SH, Jun SW, Park SJ, Park JY, Lee S, Kim HS, Ahn YH. Identifying different types of microorganisms with terahertz spectroscopy. Biomed Opt Express 2020; 11:406-416. [PMID: 32010524 PMCID: PMC6968764 DOI: 10.1364/boe.376584] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 05/08/2023]
Abstract
Most microbial detection techniques require pretreatment, such as fluorescent labeling and cultivation processes. Here, we propose novel tools for classifying and identifying microorganisms such as molds, yeasts, and bacteria based on their intrinsic dielectric constants in the THz frequency range. We first measured the dielectric constant of films that consisted of a wide range of microbial species, and extracted the values for the individual microbes using the effective medium theory. The dielectric constant of the molds was 1.24-1.85, which was lower than that of bacteria ranging from 2.75-4.11. The yeasts exhibited particularly high dielectric constants reaching 5.63-5.97, which were even higher than that of water. These values were consistent with the results of low-density measurements in an aqueous environment using microfluidic metamaterials. In particular, a blue shift in the metamaterial resonance occurred for molds and bacteria, whereas the molds have higher contrast relative to bacteria in the aqueous environment. By contrast, the deposition of the yeasts induced a red shift because their dielectric constant was higher than that of water. Finally, we measured the dielectric constants of peptidoglycan and polysaccharides such as chitin, α-glucan, and β-glucans (with short and long branches), and confirmed that cell wall composition was the main cause of the observed differences in dielectric constants for different types of microorganisms.
Collapse
Affiliation(s)
- S A Yoon
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
- Co-first authors with equal contribution
| | - S H Cha
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
- Co-first authors with equal contribution
| | - S W Jun
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
| | - S J Park
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
| | - J-Y Park
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
| | - S Lee
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
| | - H S Kim
- Department of Biological Science, Ajou University, Suwon 16499, South Korea
| | - Y H Ahn
- Department of Physics and Department of Energy Systems Research, Ajou University, Suwon 16499, South Korea
| |
Collapse
|
30
|
Meng K, Park SJ, Li LH, Bacon DR, Chen L, Chae K, Park JY, Burnett AD, Linfield EH, Davies AG, Cunningham JE. Tunable broadband terahertz polarizer using graphene-metal hybrid metasurface. Opt Express 2019; 27:33768-33778. [PMID: 31878438 DOI: 10.1364/oe.27.033768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
We demonstrate an electrically tunable polarizer for terahertz (THz) frequency electromagnetic waves formed from a hybrid graphene-metal metasurface. Broadband (>3 THz) polarization-dependent modulation of THz transmission is demonstrated as a function of the graphene conductivity for various wire grid geometries, each tuned by gating using an overlaid ion gel. We show a strong enhancement of modulation (up to ∼17 times) compared to graphene wire grids in the frequency range of 0.2-2.5 THz upon introduction of the metallic elements. Theoretical calculations, considering both plasmonic coupling and Drude absorption, are in good agreement with our experimental findings.
Collapse
|
31
|
Lee H, Park SJ, Ndombi GO, Nam EW. Community-based maternal and child health project on 4 + antenatal care in the Democratic Republic of Congo: a difference-in-differences analysis. Reprod Health 2019; 16:157. [PMID: 31675974 PMCID: PMC6824009 DOI: 10.1186/s12978-019-0819-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 05/09/2019] [Accepted: 09/27/2019] [Indexed: 11/08/2022] Open
Abstract
Background Despite efforts to achieve the Millennium Development Goals, the maternal mortality ratio in the Democratic Republic of Congo was 693 per 100,000 in 2015—the 6th highest in the world and higher than the average (547 per 100,000) in sub-Saharan Africa. Antenatal care (ANC) service is a cost-effective intervention for reducing the maternal mortality ratio in low-income countries. This study aimed to identify the intervention effect of the maternal and child health care (MCH) project on the use of four or more (4+) ANC services. Methods The MCH project was implemented using the three delays model in Kenge city by the Ministry of Public Health (MoPH) of the DRC with technical assistance from Korea International Cooperation Agency (KOICA) and the Yonsei Global Health Center from 2014 to 2017. Furthermore, Boko city was selected as the control group. A baseline and an endline survey were conducted in order to evaluate the effectiveness of this project. We interviewed 602 and 719 participants in Kenge, and 150 and 614 participants in Boko in the baseline and endline surveys, respectively. We interviewed married reproductive-aged women (19–45 years old) in both cities annually. The study instruments were developed based on the UNICEF Multiple Indicator Cluster Surveys. This study used the homogeneity test and the binary logistic regression difference-in-differences method of analysis. Results The odds of reproductive-aged women’s 4+ ANC service utilization at the intervention site increased 2.280 times from the baseline (OR: 2.280, 95% CI: 1.332–3.902, p = .003) as compared to the control site. Conclusions This study showed that the KOICA MCH project effectively increased the 4+ ANC utilization by reproductive-aged women in Kenge. As the 4+ ANC services are expected to reduce maternal deaths, this project might have contributed to reducing maternal mortality in Kenge. In the future, we expect these findings to inform MCH policies of the MoPH in the DRC.
Collapse
Affiliation(s)
- Hocheol Lee
- Department of Health Administration, Graduate School, Yonsei University, 1 Yonseidae-gil, Wonju, 220-070, Republic of Korea.,Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Sung Jong Park
- Department of Applied Statistics, Graduate School, Yonsei University, 1 Yonseidae-gil, Wonju, 220-070, Republic of Korea
| | - Grace O Ndombi
- Department of Health Administration, Graduate School, Yonsei University, 1 Yonseidae-gil, Wonju, 220-070, Republic of Korea.,Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea
| | - Eun Woo Nam
- Department of Health Administration, Graduate School, Yonsei University, 1 Yonseidae-gil, Wonju, 220-070, Republic of Korea. .,Yonsei Global Health Center, Yonsei University, Wonju, Republic of Korea.
| |
Collapse
|
32
|
Kim MS, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Choe YH, Chang SA. P5279Pericardial inflammation basced on cardiac magnetic resonance imaging in patients with tuberculous pericarditis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0250] [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: 11/13/2022] Open
Abstract
Abstract
Background
While constrictive pericarditis has been traditionally considered a disabling disease, reversible constrictive pericarditis has been described in previous studies. But there are limited studies on cardiac imaging of tuberculous pericarditis. In particular, no studies on cardiac magnetic resonance imaging (CMR) have been reported. We aimed to investigate CMR findings including pericardial late gadolinium enhancement (LGE) and T2 fat suppression and black blood sequences in patients with tuberculous pericarditis.
Methods
We retrospectively analyzed medical records of patients with tuberculous pericarditis between January 2010 and January 2017 in Samsung Medical Center. Definite diagnosis of tuberculous pericarditis is based on the identification of Mycobacterium tuberculosis in pericardial fluid or tissue; probable diagnosis was made when there was other evidence of tuberculosis elsewhere in patients with unexplained pericarditis. We performed CMR at initial diagnosis. Treatment consists of the standard 4-drug antituberculosis regimen for 6 months with or without steroids. Echocardiography was also conducted at initial diagnosis and 6 months later.
Results
Total 39 cases with tuberculous pericarditis in immunocompetent patients were enrolled. Ten patients were diagnosed as definite tuberculous pericarditis. CMR finding at initial diagnosis divided into five groups: 1) pericardial effusion only (n=20, 51.3%), 2) effusive constrictive pericarditis (n=5, 12.8%), 3) constrictive pericarditis (n=11, 28.2%), 4) pericardial abscess formation (n=4, 10.3%) and 5) absence of pericardial effusion and constrictive physiology (n=1, 2.6%). One of the 4 patients with pericardial abscess formation was together with pericardial effusion and the other was accompanied by effusive constrictive pericarditis. Pericardial thickness increased to more than 4mm in 25 patients (64.1%) and the mean pericardial thickness was 10.0±6.9mm. Delayed enhancement of pericardium was noticed in 29 patients (74.4%). In T2 fat suppression and black blood sequences, 30 patients showed increased T2 signal intensity indicating inflammation with extensive edema. Pericardial thickening (>4mm) with constriction (n=15) was not statistically significant in the delayed enhancement and increased T2 signal intensity compared with pericardial thickening without constrictive pericarditis (n=10) (delayed enhancement 93.8% vs. 77.8% p=0.287; increased T2 signal intensity 88.9% vs. 87.5%, p=0.713). After 6 months, only 3 patients still had constrictive pericarditis in echocardiography.
Effusive constrictive pericarditis
Conclusions
Pericardial thickening is associated with delayed enhancement and increased T2 signal intensity in patients with tuberculous pericarditis regardless of constrictive pericarditis. Even though there were hemodynamic feature of constrictive pericarditis and pericardial inflammation with extensive edema in CMR at initial diagnosis, 80% of the patients were improved from constrictive pericarditis.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- M S Kim
- Gangnam CHA General Hospital, Cardiology, Seoul, Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| | - Y H Choe
- Samsung Medical Center, Radiology, Cardiovascular Imaging Center, Seoul, Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Cardiology, Seoul, Korea (Republic of)
| |
Collapse
|
33
|
Park SJ, Park J, Lee MJ, Seo JS, Ahn JY, Cho JW. Time series analysis of delta neutrophil index as the predictor of sepsis in patients with acute poisoning. Hum Exp Toxicol 2019; 39:86-94. [PMID: 31558056 DOI: 10.1177/0960327119878244] [Citation(s) in RCA: 5] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Delta neutrophil index (DNI), which reflects the fraction of immature granulocytes, is used to detect infection and sepsis from noninfectious conditions, but few studies have evaluated in the early stage of acute poisoning. This retrospective observational study was performed on acute poisoning patients who visited to the emergency department (ED) and were consecutively admitted in intensive care units over 18-month period. The serial DNI, conventional inflammatory biomarkers, and culture results were obtained in the ED and after admission. The outcomes were the identification of sepsis, bacteremia, and 30-day mortality. Of 166 patients (mean age, 56.0 years) in this cohort, 59 (35.5%) had sepsis and 29 (17.5%) had bacteremia. Initial and peak DNI fractions 24 h after ED admission were strong independent predictors of sepsis development. Analysis of the area under the curve according to multiple receiver operating characteristics showed that DNI had a higher capability to predict sepsis than other parameters (0.815 for DNI, 0.700 for procalcitonin, 0.681 for C-reactive protein, and 0.741 for white blood cell). Using multivariable logistic regression analysis, it was found that DNI was an independent predictor of sepsis (95% confidence interval (CI) of odds: 1.03-1.18) and bacteremia (95% CI: 1.01-1.14). Therefore, initial and serial measurement of DNI may serve as useful risk predictor for development of sepsis or bacteremia in acute poisoning.
Collapse
Affiliation(s)
- S J Park
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - J Park
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - M J Lee
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - J S Seo
- Department of Emergency Medicine, Dongguk University Ilsan Hospital, College of Medicine, Dongguk University, Seoul, Republic of Korea
| | - J Y Ahn
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - J W Cho
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| |
Collapse
|
34
|
Meng K, Park SJ, Burnett AD, Gill T, Wood CD, Rosamond M, Li LH, Chen L, Bacon DR, Freeman JR, Dean P, Ahn YH, Linfield EH, Davies AG, Cunningham JE. Increasing the sensitivity of terahertz split ring resonator metamaterials for dielectric sensing by localized substrate etching. Opt Express 2019; 27:23164-23172. [PMID: 31510599 DOI: 10.1364/oe.27.023164] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/11/2019] [Indexed: 05/18/2023]
Abstract
We demonstrate a significant enhancement in the sensitivity of split ring resonator terahertz metamaterial dielectric sensors by the introduction of etched trenches into their inductive-capacitive gap area, both through finite element simulations and in experiments performed using terahertz time-domain spectroscopy. The enhanced sensitivity is demonstrated by observation of an increased frequency shift in response to overlaid dielectric material of thicknesses up to 18 µm deposited on to the sensor surface. We show that sensitivity to the dielectric is enhanced by a factor of up to ∼2.7 times by the incorporation of locally etched trenches with a depth of ∼3.4 µm, for example, and discuss the effect of the etching on the electrical properties of the sensors. Our experimental findings are in good agreement with simulations of the sensors obtained using finite element methods.
Collapse
|
35
|
Kim BJ, Yoo HJ, Park SJ, Kwak MK, Lee SH, Kim SJ, Hamrick MW, Isales CM, Ahn SH, Koh JM. Association of blood n-3 fatty acid with bone mass and bone marrow TRAP-5b in the elderly with and without hip fracture. Osteoporos Int 2019; 30:1071-1078. [PMID: 30719549 DOI: 10.1007/s00198-019-04881-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 09/20/2018] [Accepted: 01/27/2019] [Indexed: 10/27/2022]
Abstract
UNLABELLED The plasma n-3 fatty acid level was 26.2% lower in patients with osteoporotic hip fracture than in those with osteoarthritis. In all patients, n-3 fatty acid was positively associated with bone mineral density and inversely associated with tartrate-resistant acid phosphatase-5b level in bone marrow aspirates, reflecting the bone microenvironment. INTRODUCTION Despite the potential beneficial role of n-3 fatty acid (FA) on bone metabolism, the specific mechanisms underlying these effects in humans remain unclear. Here, we assessed whether the plasma n-3 level, as an objective indicator of its status, is associated with osteoporosis-related phenotypes and bone-related markers in human bone marrow (BM) samples. METHODS This was a case-control and cross-sectional study conducted in a clinical unit. n-3 FA in the blood and bone biochemical markers in the BM aspirates were measured by gas chromatography/mass spectrometry and immunoassay, respectively. BM fluids were collected from 72 patients who underwent hip surgery because of either osteoporotic hip fracture (HF; n = 28) or osteoarthritis (n = 44). RESULTS After adjusting for confounders, patients with HF had 26.2% lower plasma n-3 levels than those with osteoarthritis (P = 0.006), and each standard deviation increment in plasma n-3 was associated with a multivariate-adjusted odds ratio of 0.40 for osteoporotic HF (P = 0.010). In multivariate analyses including all patients, a higher plasma n-3 level was associated with higher bone mass at the lumbar spine (β = 0.615, P = 0.002) and total femur (β = 0.244, P = 0.045). Interestingly, the plasma n-3 level was inversely associated with the tartrate-resistant acid phosphatase-5b level (β = - 0.633, P = 0.023), but not with the bone-specific alkaline phosphatase level, in BM aspirates. CONCLUSIONS These findings provide clinical evidence that n-3 FA is a potential inhibitor of osteoclastogenesis that favors human bone health.
Collapse
Affiliation(s)
- B-J Kim
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
| | - H J Yoo
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - S J Park
- Asan Institute for Life Sciences, Seoul, South Korea
| | - M K Kwak
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - S H Lee
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - S J Kim
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - M W Hamrick
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - C M Isales
- Department of Orthopedic Surgery, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - S H Ahn
- Department of Endocrinology, Inha University School of Medicine, Incheon, South Korea
| | - J-M Koh
- Division of Endocrinology and Metabolism, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| |
Collapse
|
36
|
Jung SY, Han JH, Park SJ, Lee EG, Lee MH, Lee ES, Kang HS, Lee KS, Park IH, Sim SH, Jeong HJ, Kwon Y, Lee DE, Joo J, Kim SK, Lee S. Abstract P3-03-05: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-03-05] [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: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the conference.
Citation Format: Jung S-Y, Han JH, Park SJ, Lee E-G, Lee MH, Lee ES, Kang H-S, Lee KS, Park IH, Sim SH, Jeong HJ, Kwon Y, Lee D-E, Joo J, Kim S-K, Lee S. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P3-03-05.
Collapse
Affiliation(s)
- S-Y Jung
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - JH Han
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - SJ Park
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - E-G Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - MH Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - ES Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - H-S Kang
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - KS Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - IH Park
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - SH Sim
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - HJ Jeong
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Y Kwon
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - D-E Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - J Joo
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - S-K Kim
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| | - S Lee
- National Cancer Center, Goyang, Republic of Korea; Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea; Keimyung University School of Medicine, Daegu, Republic of Korea
| |
Collapse
|
37
|
Kim SH, Lee EC, Park SJ. Living-donor Liver Retransplantation Using the Vessels of the Previous Allograft by Means of Intragraft Dissection. Transplant Proc 2018; 50:3562-3563. [PMID: 30577238 DOI: 10.1016/j.transproceed.2018.09.021] [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] [Received: 04/13/2018] [Revised: 08/27/2018] [Accepted: 09/11/2018] [Indexed: 11/16/2022]
Abstract
Retransplantation with the use of a living-donor graft can be the only therapeutic option for patients with irreversible graft failure, especially in regions with limited access to deceased donors, but it can be technically demanding because of severe adhesion around the hepatic hilum and inferior vena cava. We introduce an effective and safe technique to overcome this challenge for right-lobe living-donor liver retransplantation by using the vessels of the previous right liver allograft with the use of intragraft dissection. The technique was used in 2 critically ill patients undergoing the graft failure. The operative times were 360 and 410 minutes. The recipients were discharged on days 18 and 25 with normal liver function. One postoperative complication occurred 3 months after retransplantation: biliary leakage, corrected with the use of percutaneous transhepatic biliary drainage. Both patients were alive with a functioning allograft at last follow-up of >3 years. Intragraft dissection to use the vessels of the previous right-liver allograft can be a useful technique and should be considered for right-lobe living-donor liver retransplantation.
Collapse
Affiliation(s)
- S H Kim
- National Cancer Center, Goyang-si, Gyeonggi-do, Korea.
| | - E C Lee
- National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| | - S J Park
- National Cancer Center, Goyang-si, Gyeonggi-do, Korea
| |
Collapse
|
38
|
Kim MS, Kim EK, Park SJ, Park SW, Lee SC, Oh JK, Chang SA. P691The clinical course of tuberculous pericarditis in immunocompetent hosts based on serial echocardiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p691] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M S Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S W Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S C Lee
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J K Oh
- Mayo Clinic, Division of Cardiovascular Diseases, Rochester, United States of America
| | - S A Chang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| |
Collapse
|
39
|
On YK, Lee DH, Park SJ, Park KM, Kim JS. P2892Clinical outcomes of atrial fibrillation development or progression in patients with permanent pacemakers. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2892] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y.-K On
- Samsung Medical Center, Sungkyunkwan University, Cardiovascular Center, Seoul, Korea Republic of
| | - D H Lee
- Samsung Medical Center, Sungkyunkwan University, Cardiovascular Center, Seoul, Korea Republic of
| | - S J Park
- Samsung Medical Center, Sungkyunkwan University, Cardiovascular Center, Seoul, Korea Republic of
| | - K M Park
- Samsung Medical Center, Sungkyunkwan University, Cardiovascular Center, Seoul, Korea Republic of
| | - J S Kim
- Samsung Medical Center, Sungkyunkwan University, Cardiovascular Center, Seoul, Korea Republic of
| |
Collapse
|
40
|
Won J, Jeong HK, Hong YJ, Jeong MH, Kim YJ, Chae SC, Hong TJ, Seong IW, Chae JK, Kim CJ, Cho MC, Rha SW, Bae JH, Seung KB, Park SJ. P6438Comparative efficacy of angiotensin converting enzyme inhibitor and angiotensin receptor blocker for patients with acute myocardial infarction and renal dysfunction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6438] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Won
- Chonnam National University Hospital, Division of Cardiology, Gwangju, Korea Republic of
| | - H K Jeong
- Chonnam National University Hospital, Division of Cardiology, Gwangju, Korea Republic of
| | - Y J Hong
- Chonnam National University Hospital, Division of Cardiology, Gwangju, Korea Republic of
| | - M H Jeong
- Chonnam National University Hospital, Division of Cardiology, Gwangju, Korea Republic of
| | - Y J Kim
- Yeungnam University Hospital, Division of Cardiology, Daegu, Korea Republic of
| | - S C Chae
- Kyungpook National University Hospital, Division of Cardiology, Daegu, Korea Republic of
| | - T J Hong
- Pusan National University Hospital, Division of Cardiology, Pusan, Korea Republic of
| | - I W Seong
- Chungnam National University Hospital, Division of Cardiology, Daejeon, Korea Republic of
| | - J K Chae
- Chonbuk National University Hospital, Division of Cardiology, Jeonju, Korea Republic of
| | - C J Kim
- Kyung Hee University Hospital at Gangdong, Division of Cardiology, Seoul, Korea Republic of
| | - M C Cho
- Chungbuk National University Hospital, Division of Cardiology, Cheongju, Korea Republic of
| | - S W Rha
- Korea University Guro Hospital, Division of Cardiology, Seoul, Korea Republic of
| | - J H Bae
- Konyang University hospital, Division of Cardiology, Daejeon, Korea Republic of
| | - K B Seung
- Seoul St. Mary's Hospital, Division of Cardiology, Seoul, Korea Republic of
| | - S J Park
- Asan Medical Center, Division of Cardiology, Seoul, Korea Republic of
| | | |
Collapse
|
41
|
Chun KJ, Gwag HB, Park SJ, Park KM, On YK, Kim JS. P6650Comparision of transjugular versus transfemoral approach for temporary pacemaker implantation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6650] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K J Chun
- Kangnam Sacred Heart Hospital, Seoul, Korea Republic of
| | - H B Gwag
- Samsung Medical Center, Seoul, Korea Republic of
| | - S J Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - K M Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y K On
- Samsung Medical Center, Seoul, Korea Republic of
| | - J S Kim
- Samsung Medical Center, Seoul, Korea Republic of
| |
Collapse
|
42
|
Gwag HB, Jeong DS, Hwang JK, Chun KJ, Park SJ, On YK, Kim JS, Park KM. P846Characteristics and outcomes of recurrent atrial tachyarrhythmia after totally thoracoscopic ablation for persistent atrial fibrillation. Europace 2018. [DOI: 10.1093/europace/euy015.449] [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: 11/12/2022] Open
Affiliation(s)
- H B Gwag
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - D S Jeong
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J K Hwang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - K J Chun
- Kangnam Sacred Heart Hospital, Seoul, Korea Republic of
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y K On
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J S Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - K M Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| |
Collapse
|
43
|
Gwag HB, Hwang JK, Jeong DS, Park SJ, Kim JS, Park KM, On YK. P845Benefits of concurrent cavotricuspid isthmus ablation after totally thoracoscopic ablation for persistent atrial fibrillation. Europace 2018. [DOI: 10.1093/europace/euy015.448] [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)
- H B Gwag
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J K Hwang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - D S Jeong
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S J Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J S Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - K M Park
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y K On
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| |
Collapse
|
44
|
Lee EG, Kang H, Park SJ, Han JH, Jung SY, Lee S, Kang HS, Park B, Kong SY, Lim MC, Park SY, Lee ES. Abstract P4-06-12: Different patterns of risk reducing decisions in affected or unaffected BRCA mutation carriers. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-06-12] [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: 11/16/2022]
Abstract
Abstract
BACKGROUND
Risk-reducing (RR) management decreases the risk of breast cancer and BRCA related gynecologic cancer. However, there are fewer reports on the RR management in Asia compared to Western countries.The aim of this study is to identify risk reducing management patterns with BRCA1 or BRCA2 mutation carriers.
METHODS
The study group consisted of all consecutive 1104 breast cancer, ovarian patients and their families of high-risk patients who underwent BRCA gene testing in National Cancer Center, Korea from 2008 to 2016. A total 220 BRCA mutations (19.9%) were detected with 125(11.3%) of BRCA1 gene and 95 (8.6%) of BRCA2 gene.
RESULTS
Out of 220 BRCA mutations carriers, they were consisted of 83 breast cancers, 10 ovarian cancers, 7 both cancers, and 120 unaffected carriers. Among them, 42 were men and 178 were women. About 90 % (198/ 220) had the familial history of breast, ovarian or both malignancies (113 in BRCA1 and 85 in BRCA2 mutation (p=0.821)).
All 42 men chose surveillance. Among 178 female BRCA mutation carriers, 98(55.1%) underwent risk reducing management including 18(10.1%) of chemoprevention, and 80(49.9%) had risk-reducing surgeries (RRSs) (1 case of risk-reducing mastectomy, 76 of risk reducing bilateral salphingo-oophorectomy (RRSO), and 3 of both) and 80 (54.9%) chose only intensive surveillance for both of breast and ovary cancer.
In affected carriers with breast cancer, 59 (71.1%) underwent RR management (1 case of risk reducing mastectomy, 53 of RRSO, 3 of both surgery, and 2 of chemoprevention). There was no risk reducing management in affected carrier with ovarian cancer patients. In 78 unaffected women carriers, 39(50.0%) women received RR management (23(29.5%) cases of RRSO and 16(20.5%) cases of chemoprevention). The rates of RRSs have increased annually since the 2013 year, (prior to 2013 vs. since 2013, RRSs 28.6% (6 cases/21 carriers) vs. 37.2% (74/199), p<0.01).
CONCLUSION
This study was conducted on the largest numbers of BRCA mutation carriers in Asian countries. RRSO is the more preferred management for affected carriers with breast cancer or unaffected carriers. The results might be explained by the severity of the illness and that RRSO was only reimbursed RR strategy from the Korean Government Insurance. Tailored genetic counseling and insurance policy may enhance overall levels of RR management.
Citation Format: Lee EG, Kang H, Park SJ, Han JH, Jung S-Y, Lee S, Kang H-S, Park B, Kong S-Y, Lim MC, Park S-Y, Lee ES. Different patterns of risk reducing decisions in affected or unaffected BRCA mutation carriers [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-06-12.
Collapse
Affiliation(s)
- EG Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - H Kang
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - SJ Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - JH Han
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Jung
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - H-S Kang
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - B Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Kong
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - MC Lim
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - S-Y Park
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - ES Lee
- Center for Breast Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea; Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Gyeonggi-do, Korea; Center for Uterine Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Gyeonggi-do, Korea
| |
Collapse
|
45
|
Kim YH, Jeon SY, Park JH, Choe JH, Lee SH, Park SJ, Kim KH, Kim JS. Faucial Pillar Perforation by Glidescope Intubation with Incorrectly Placed Stylet. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Glidescope GVL® is frequently used in intubation of difficult airway. We report a case of right side of faucial pillar perforation during intubation with Glidescope®. A rigid stylet can facilitate placing of endotracheal tube quickly but it may also penetrate the soft tissue to cause injuries.
Collapse
Affiliation(s)
| | | | | | | | | | - SJ Park
- Haeundae Paik Hospital, Department of Surgery, Inje University, Busan, South Korea
| | - KH Kim
- Haeundae Paik Hospital, Department of Surgery, Inje University, Busan, South Korea
| | - JS Kim
- Haeundae Paik Hospital, Department of Surgery, Inje University, Busan, South Korea
| |
Collapse
|
46
|
Baik M, Kang HJ, Park SJ, Na SW, Piao M, Kim SY, Fassah DM, Moon YS. TRIENNIAL GROWTH AND DEVELOPMENT SYMPOSIUM: Molecular mechanisms related to bovine intramuscular fat deposition in the longissimus muscle. J Anim Sci 2017; 95:2284-2303. [PMID: 28727015 DOI: 10.2527/jas.2016.1160] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The intramuscular fat (IMF) content of the LM, also known as marbling, is particularly important in determining the price of beef in Korea, Japan, and the United States. Deposition of IMF is influenced by both genetic (e.g., breed, gender, and genotype) and nongenetic factors (e.g., castration, nutrition, stressors, animal weight, and age). Castration of bulls markedly increases deposition of IMF, resulting in improved beef quality. Here, we present a comparative gene expression approach between bulls and steers. Transcriptomic and proteomic studies have demonstrated that the combined effects of increases in lipogenesis, fatty acid uptake, and fatty acid esterification and decreased lipolysis are associated with increased IMF deposition in the LM. Several peripheral tissues (LM, adipose tissues, and the liver) are involved in lipid metabolism. Therefore, understanding the significance of the tissue network in lipid metabolism is important. Here, we demonstrate that lipid metabolism in LM tissues is crucial for IMF deposition, whereas lipid metabolism in the liver plays only a minor role. Metabolism of body fat and IMF deposition in bovine species has similarities with these processes in metabolic diseases, such as obesity in humans and rodents. Extensive studies on metabolic diseases using epigenome modification (DNA methylation, histone modification, and microRNA), microbial metagenomics, and metabolomics have been performed in humans and rodents, and new findings have been reported using these technologies. The importance of applying "omics" fields (epigenomics, metagenomics, and metabolomics) to the study of IMF deposition in cattle is described. New information on the molecular mechanisms of IMF deposition may be used to design nutritional or genetic methods to manipulate IMF deposition and to modify fatty acid composition in beef cattle. Applying nutrigenomics could maximize the expression of genetic potential of economically important traits (e.g., marbling) in animals.
Collapse
|
47
|
Park SJ, Bostwick JB, De Andrade V, Je JH. Self-spreading of the wetting ridge during stick-slip on a viscoelastic surface. Soft Matter 2017; 13:8331-8336. [PMID: 29058731 DOI: 10.1039/c7sm01408b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Dynamic wetting behaviors on soft solids are important to interpret complex biological processes from cell-substrate interactions. Despite intensive research studies over the past half-century, the underlying mechanisms of spreading behaviors are not clearly understood. The most interesting feature of wetting on soft matter is the formation of a "wetting ridge", a surface deformation by a competition between elasticity and capillarity. Dynamics of the wetting ridge formed at the three-phase contact line underlies the dynamic wetting behaviors, but remains largely unexplored mostly due to limitations in indirect observation. Here, we directly visualize wetting ridge dynamics during continuous- and stick-slip motions on a viscoelastic surface using X-ray microscopy. Strikingly, we discover that the ridge spreads spontaneously during stick and triggers contact line depinning (stick-to-slip transition) by changing the ridge geometry which weakens the contact line pinning. Finally, we clarify 'viscoelastic-braking', 'stick-slipping', and 'stick-breaking' spreading behaviors through the ridge dynamics. In stick-breaking, no ridge-spreading occurs and contact line pinning (hysteresis) is enhanced by cusp-bending while preserving a microscopic equilibrium at the ridge tip. We have furthered the understanding of spreading behaviors on soft solids and demonstrated the value of X-ray microscopy in elucidating various dynamic wetting behaviors on soft solids as well as puzzling biological issues.
Collapse
Affiliation(s)
- S J Park
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, South Korea.
| | | | | | | |
Collapse
|
48
|
VanBik D, Lee SH, Seo MG, Jeon BR, Goo YK, Park SJ, Rhee MH, Kwon OD, Kim TH, Geraldino PJL, Kwak D. Borrelia Species Detected in Ticks Feeding on Wild Korean Water Deer (Hydropotes inermis) Using Molecular and Genotypic Analyses. J Med Entomol 2017; 54:1397-1402. [PMID: 28549151 DOI: 10.1093/jme/tjx106] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 12/14/2016] [Indexed: 06/07/2023]
Abstract
Lyme borreliosis is a vector-borne disease transmitted through the bite of ticks infected by Borrelia burgdorferi sensu lato group, including B. burgdorferi sensu stricto, B. afzelii, and B. garinii. The goal of the present study was to detect Borrelia species in ticks infesting wild Korean water deer (KWD; Hydropotes inermis Swinhoe), using molecular and genotypic analyses. In total, 48 ticks were collected from KWD, all of which were morphologically identified as Haemaphysalis longicornis Neumann that is dominant in Korea. Nested PCR was performed to detect the Borrelia-specific 5S (rrf)-23S (rrl) intergenic spacer region and the outer surface protein A (ospA) genes in ticks. Both rrf-rrl and ospA were amplified from one of the 48 ticks (2.1%) and were identified as B. afzelii. To our knowledge, this study constitutes the first molecular detection of B. afzelii in Haemaphysalis ticks in Korea. Because B. afzelii is a zoonotic tick-borne pathogen, understanding the molecular characteristics of this bacterium is important for preventing the transmission of Borrelia from ticks to other animals and humans.
Collapse
Affiliation(s)
- D VanBik
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - S H Lee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
- Animal and Plant Quarantine Agency, Gimcheon, Gyeongbuk, Korea
| | - M G Seo
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
- Animal and Plant Quarantine Agency, Gimcheon, Gyeongbuk, Korea
| | - B R Jeon
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Y K Goo
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - S J Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - M H Rhee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - O D Kwon
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - T H Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - P J L Geraldino
- Department of Biology, College of Arts and Sciences, University of San Carlos, Cebu, Philippines
| | - D Kwak
- College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
- Cardiovascular Research Institute, Kyungpook National University, Daegu, Korea
| |
Collapse
|
49
|
Min JY, Kim HI, Park SJ, Lim H, Song JH, Byon HJ. Adequate interval for the monitoring of vital signs during endotracheal intubation. BMC Anesthesiol 2017; 17:110. [PMID: 28830366 PMCID: PMC5568307 DOI: 10.1186/s12871-017-0399-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 04/20/2017] [Accepted: 08/13/2017] [Indexed: 11/18/2022] Open
Abstract
Background In the perioperative period, it may be inappropriate to monitor vital signs during endotracheal intubation using the same interval as during a hemodynamically stable period. The aim of the present study was to determine whether it is appropriate to use the same intervals used during the endotracheal intubation and stable periods to monitor vital signs of patients under general anesthesia. Methods The mean arterial pressure (MAP) and heart rate (HR) were continuously measured during endotracheal intubation (15 min after intubation) and hemodynamically stable (15 min before skin incision) periods in 24 general anesthesia patients. Data was considered “unrecognized” when continuously measured values were 30% more or less than the monitored value measured at 5- or 2.5-min intervals. The incidence of unrecognized data during endotracheal intubation was compared to that during the hemodynamically stable period. Result There were significantly more unrecognized MAP data measured at 5-min intervals during endotracheal intubation than during the hemodynamically stable period (p value <0.05). However, there was no difference in the incidence of unrecognized MAP data at 2.5 min intervals or HR data at 5 or 2.5 min intervals between during the endotracheal intubation and hemodynamically stable periods. Conclusion A 5-min interval throughout the operation period was not appropriate for monitoring vital signs. Therefore, , a 2.5-min interval is recommended for monitoring the MAP during endotracheal intubation.
Collapse
Affiliation(s)
- J Y Min
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - H I Kim
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - S J Park
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - H Lim
- Department of Anesthesiology and Pain Medicine, Inha University College of Medicine, Incheon, Republic of Korea
| | - J H Song
- Department of Anesthesiology and Pain Medicine, Inha University College of Medicine, Incheon, Republic of Korea
| | - H J Byon
- Department of Anesthesiology and Pain Medicine, Severance Hospital, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
| |
Collapse
|
50
|
Park SJ, Kim Y, Jang SY. The application of an acellular dermal allograft (AlloDerm) for patients with insufficient conjunctiva during evisceration and implantation surgery. Eye (Lond) 2017; 32:136-141. [PMID: 28799557 DOI: 10.1038/eye.2017.161] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 07/03/2017] [Indexed: 12/13/2022] Open
Abstract
PurposeTo describe the use of an acellular dermal allograft (AlloDerm) for patients with insufficient conjunctiva during evisceration and implantation surgery.Patients and methodsThe medical records of six patients with insufficient conjunctiva during evisceration surgery were reviewed. It was not possible to close the Tenon's capsule and conjunctiva without wound tension in these patients, so AlloDerm was placed over the sclera, and the edges were sutured with adjacent conjunctiva without tension. The size of the bare AlloDerm graft was measured in all patients. The clinical outcome was the incidence of complications, and the percentage of patients needing additional surgery was also recorded.ResultsThe cause of evisceration was end stage glaucoma (four patients) and endogenous endophthalmitis (two patients). All six eyes of six patients (100%) had a successful outcome showing no complications. Four cases achieved full conjunctivalisation over the bare AlloDerm graft. Two cases had a bare AlloDerm until the last follow-up, but showed no implant exposure. It took a median of 11 weeks for the slow advance of the conjunctival edge to entirely cover the AlloDerm graft.ConclusionsAlloDerm is a promising material for covering sclera and implants in a tension-free manner after evisceration surgery in patients with insufficient conjunctiva.
Collapse
Affiliation(s)
- S J Park
- College of medicine, Soonchunhyang University, Cheonan, Korea
| | - Y Kim
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| |
Collapse
|