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Lee SY, Jeung JU, Mo Y. Allelic combinations of Hd1, Hd16, and Ghd7 exhibit pleiotropic effects on agronomic traits in rice. G3 (Bethesda) 2024; 14:jkad300. [PMID: 38168849 PMCID: PMC10917519 DOI: 10.1093/g3journal/jkad300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/24/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024]
Abstract
Heading date is a critical agronomic trait that significantly affects grain yield and quality in rice. As early heading is typically associated with reduced yield due to shorter growth duration, it is essential to harness optimum heading date genes and their allelic combinations to promote heading while minimizing yield penalties. In this study, we identified quantitative trait loci (QTLs) for heading date and other major agronomic traits in a recombinant inbred line (RIL) population derived from a cross between Koshihikari and Baegilmi. Analyses on 3 major QTLs for heading date and their underlying genes (Hd1, Hd16, and Ghd7) revealed their pleiotropic effects on culm length, panicle length, and head rice percentage. Additionally, Ghd7 exhibited pleiotropic effects on panicle number and grain size. Among 8 different types of allelic combinations of the 3 heading date genes, RILs carrying a single nonfunctional hd16 or ghd7 under the functional background of the other 2 genes (Hd1hd16Ghd7 and Hd1Hd16ghd7) showed potential for maintaining yield and quality-related traits while accelerating heading. These results provide valuable insights for fine-tuning heading dates in rice breeding programs.
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Affiliation(s)
- Seung Young Lee
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju 54896, Republic of Korea
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Ji-Ung Jeung
- National Institute of Crop Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Youngjun Mo
- Department of Crop Science and Biotechnology, Jeonbuk National University, Jeonju 54896, Republic of Korea
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Basak I, Wicky HE, McDonald KO, Xu JB, Palmer JE, Best HL, Lefrancois S, Lee SY, Schoderboeck L, Hughes SM. Correction: A lysosomal enigma CLN5 and its significance in understanding neuronal ceroid lipofuscinosis. Cell Mol Life Sci 2024; 81:45. [PMID: 38236309 PMCID: PMC10796411 DOI: 10.1007/s00018-023-05047-5] [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: 11/10/2023] [Indexed: 01/19/2024]
Affiliation(s)
- I Basak
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - H E Wicky
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - K O McDonald
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - J B Xu
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - J E Palmer
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - H L Best
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
- School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, CF10 3AX, Wales, UK
| | - S Lefrancois
- Centre INRS-Institut Armand-Frappier, INRS, H7V 1B7, Laval, Canada
- Department of Anatomy and Cell Biology, McGill University, H3A 2B2, Montreal, Canada
| | - S Y Lee
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, 66160, Kansas City, KS, USA
| | - L Schoderboeck
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - S M Hughes
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand.
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Kim JC, Choi MG, Park JS, Lee SY, Park CW, Chung BY, Misery L, Kim HO. Sensitive skin is associated with contact sensitization and decreased nociceptive threshold. J Eur Acad Dermatol Venereol 2024; 38:e125-e127. [PMID: 37556672 DOI: 10.1111/jdv.19398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 08/03/2023] [Indexed: 08/11/2023]
Affiliation(s)
- J C Kim
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - M G Choi
- Department of Computer Science, Kwangwoon University, Seoul, South Korea
| | - J S Park
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - S Y Lee
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - C W Park
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - B Y Chung
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - L Misery
- Department of Dermatology, University Hospital of Brest, Brest, France
| | - H O Kim
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
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Pyo JH, Lee SY, Lee IJ, Kim SM, Kim JW. Beneficial Role of Multi-Disciplinary Treatment for Anaplastic Thyroid Cancer with Initial Distant Metastasis. Int J Radiat Oncol Biol Phys 2023; 117:e616-e617. [PMID: 37785850 DOI: 10.1016/j.ijrobp.2023.06.1996] [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) Anaplastic thyroid cancer (ATC) is a rare, highly aggressive tumor, with median survival around 5 months. Approximately half of the ATC patients presents with distant metastases at diagnosis, showing even more devastating prognosis, yet no outcome analysis had been reported. In this study, we aim to evaluate the clinical outcome of M1 ATC patients, and to define the group of patients who would benefit from local treatment based on multi-disciplinary approach. MATERIALS/METHODS A total of 133 histology-confirmed ATC patients underwent protocol-based multidisciplinary treatment including surgery and chemoradiotherapy (CRT) between May 2016 and January 2022. Patients received intensity-modulated radiotherapy of 30 fractions concurrently with paclitaxel on days 1, 8 and 15 every 4 weeks, and lenvatinib was added upon progression. After 18 fractions of CRT, interim response analysis using modified RECIST was conducted for adaptive treatment planning. We reviewed 58 patients with distant metastasis at diagnosis (stage IVC). Overall survival (OS) and progression-free survival (PFS) were measured from the day of diagnosis. RESULTS Most common metastatic site was lung (91.4%), followed by bone (31.0%) and brain (5.2%). Lenvatinib was added for 35 patients after any sign of progression. Fourteen patients received upfront surgery (16 debulking and 5 total) followed by adjuvant CRT in 16 patients. Thirty-one patients received upfront CRT with 2 patients receiving total resection after sufficient down-staging. Six (10%) patients could not complete radiotherapy but continued receiving systemic treatment. The median follow-up was 5.9 months. The median and 1-year OS were 6.2 months and 20.5%, and PFS were 3.7 months and 3.5%. Total RT dose over 60 Gy significantly improved median OS (7.5 vs 4.1 months, p = 0.012) and median PFS (4.4 vs 3.0, p = 0.010). Patients with less than 10 initial metastatic tumors showed better median OS (9.1 vs 4.6 months, p = 0.002) but not PFS (5.1 vs 3.6, p = 0.485). At interim analysis, early response (CR, PR and SD) of primary tumor was not associated with survival, while progression of distant metastases showed significantly worse median OS (9.8 vs 4.6 months, p = 0.001). More than 10 metastatic tumors (HR 2.73, 95% CI 1.32-5.66) and stable metastasis at interim analysis (HR 2.39, 95% CI 1.04-5.48) remained as significant factor in the multivariable cox regression analysis. Median OS and PFS of patients with less than 10 metastases showing no progression at interim analysis were 9.1 months, and 5.1 months. CONCLUSION Local treatment combined with chemotherapy for M1 ATC patients showed outcome comparable to those of non-metastatic ATC results. Active local treatment should be considered especially for patients with less than 10 metastases, and patients without distant progression in early response evaluation.
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Affiliation(s)
- J H Pyo
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S Y Lee
- Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - I J Lee
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - S M Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
| | - J W Kim
- Department of Radiation Oncology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea, Republic of (South) Korea
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Kwon JH, Ko JS, Kim HJ, Han S, Gwak MS, Kim GS, Lee SY, Wi W. Comparison of the analgesic effect of intrathecal morphine between laparoscopic and open living donor hepatectomy: Propensity score matching analysis. Medicine (Baltimore) 2023; 102:e34627. [PMID: 37657001 PMCID: PMC10476809 DOI: 10.1097/md.0000000000034627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/14/2023] [Indexed: 09/03/2023] Open
Abstract
Laparoscopic donor hepatectomy is being increasingly adopted in transplant programs due to its numerous advantages. However, the role of intrathecal morphine (ITM) in laparoscopic donor hepatectomy has not been thoroughly investigated. This study aimed to compare the analgesic effects and safety of ITM between laparoscopic and open donor hepatectomy. This retrospective study included 742 donors who underwent hepatectomy with ITM between April 2007 and June 2019. Among them, 168 and 574 donors underwent laparoscopic hepatectomy (LH) and open hepatectomy (OH), respectively. Propensity score matching yielded two comparable groups of 168 donors each. The primary endpoint was the incidence of moderate-to-severe pain (maximum numerical rating scale [NRS] pain score ≥ 4) within 24 postoperative hours. The LH group had a significantly lower incidence of moderate-to-severe pain within 24 postoperative hours than the OH group (16.1% vs 64.3%, P < .001). Moreover, the cumulative rescue intravenous opioids (in morphine-equivalent dose) on postoperative day (POD) 1 was lower in the LH group than in the OH group (3.3 [0-8.3] mg vs 10 [3.3-17.3] mg; P < .001). There were no significant between-group differences in the incidence of respiratory depression (2.4% vs 0.6%; P = .371) and prescriptions for pruritus (14.3% vs 15.5%; P = .878). However, the prescriptions for postoperative nausea and vomiting (PONV) was significantly higher in the LH group than in the OH group (64.9% vs 41.7%; P < .001). The predictors of antiemetic agent prescription included the use of laparoscopic procedure (adjusted odds ratio [OR], 2.05; 95% confidence interval [CI], 1.11-3.79; P = .021) and female sex (adjusted OR, 5.63; 95% CI, 3.19-9.92; P < .001). Preoperative ITM administration resulted in a significantly lower incidence of moderate-to-severe pain within 24 postoperative hours after laparoscopic donor hepatectomy than after open donor hepatectomy.
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Affiliation(s)
- Ji-Hye Kwon
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Justin Sangwook Ko
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyo Jin Kim
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong, Korea
| | - Sangbin Han
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi Sook Gwak
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gaab Soo Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Young Lee
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Wongook Wi
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Gwangmyeong Hospital, Chung-Ang University College of Medicine, Gwangmyeong, Korea
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Choi JI, Kweon HY, Lee YL, Lee JH, Lee SY. Efficacy of Silkworm Pupae Extract on Muscle Strength and Mass in Middle-Aged and Older Individuals: A Randomized, Double-Blind, Placebo-Controlled Trial. J Nutr Health Aging 2023; 27:578-585. [PMID: 37498105 DOI: 10.1007/s12603-023-1942-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 06/06/2023] [Indexed: 07/28/2023]
Abstract
OBJECTIVES We investigated the efficacy and safety of silkworm pupae extract (SWP) consumption for 12 weeks on muscle mass and strength in middle-aged and older individuals with relatively low skeletal muscle mass who do regular low-intensity exercise. DESIGN A randomized double-blinded placebo-controlled trial. PARTICIPANTS The study was conducted with 54 participants with relatively low skeletal muscle mass (SMM) (64.4 ± 6.1 years; body mass index, 23.8 ± 2.4 kg/m2). INTERVENTION AND MEASUREMENTS Participants were randomly assigned to one of two groups: 1000 mg of SWP/day plus regular exercise (SWP group, n=27) or placebo plus regular exercise (placebo group, n=27). All participants were required to engage in 30-60 minutes/day of walking for ≥3 days/week for 12 weeks. The primary outcome was knee extension/flexion strength (Nm), measured at the velocity of 60°/s. Secondary outcomes included body composition, biomarkers (creatine kinase and creatinine), handgrip strength, and quality of life questionnaire. RESULTS Both the intention-to-treat (ITT) and per-protocol (PP) analyses revealed no significant impact of SWP on knee strength compared to the placebo group over 12 weeks. On the other hand, the SWP group had significantly greater increases in right-handgrip strength by 1.94 kg (95% CI: 0.08-3.79; p = 0.041) and left-handgrip strength by 1.83 kg (0.25-3.41; p = 0.024) compared to the placebo group in the ITT population, after 12 weeks. Moreover, in the PP population, the SWP group revealed an even greater increase in right-handgrip strength by 2.07 kg (0.15-3. 98; p = 0.035) and left-handgrip strength by 2.21 kg (0.60-3.83; p = 0.008) for the 12-week period. However, this study resulted in a failure to detect significant differences in the body composition, biomarkers, quality of life questionnaire, physical activity, and caloric intake between the groups. None of the participants in the SWP group experienced any significant adverse events. In the placebo group, two participants experienced urticaria and allergic side effects, leading to their withdrawal from the study and two exhibited elevated levels of liver enzyme and increased diastolic blood pressure, respectively at 12 weeks. CONCLUSION SWP, in addition to low-intensity exercise, may enhance handgrip strengths in middle-aged and older adults with relatively lower SMM. Future studies need to use a large sample size over longer periods to validate our findings. This trial was registered at clinicaltrials.gov as NCT04994054.
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Affiliation(s)
- J I Choi
- Sang Yeoup Lee, Family Medicine Clinic, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea, Telephone: +82-55-390-1442, E-mail: , Fax: +82-51-510-8125
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Kang SY, Choi MG, Wei ET, Selescu T, Lee SY, Kim JC, Chung BY, Park CW, Kim HO. TRPM8 agonist (cryosim-1) gel for scalp itch: A randomized, vehicle controlled clinical trial. J Eur Acad Dermatol Venereol 2022; 36:e588-e589. [PMID: 35293031 DOI: 10.1111/jdv.18080] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S Y Kang
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - M G Choi
- Department of Computer Science and Engineering, Kwangwoon University, Seoul, Korea
| | - E T Wei
- School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - T Selescu
- Department of Anatomy, Physiology and Biophysics, Faculty of Biology, University of Bucharest, Bucuresti, Romania
| | - S Y Lee
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - J C Kim
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - B Y Chung
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - C W Park
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
| | - H O Kim
- Department of Dermatology, Kangnam Sacred Heart Hospital, Hallym University, Seoul, Korea
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Lee SY, Ryu CG, Koo YH, Cho H, Jung H, Park YH, Kang H, Lee SE, Shin HY. The effect of ultrasound-guided transversus abdominis plane block on pulmonary function in patients undergoing laparoscopic cholecystectomy: a prospective randomized study. Surg Endosc 2022; 36:7334-7342. [PMID: 35182213 DOI: 10.1007/s00464-022-09131-y] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/09/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Transversus abdominis plane block (TAPB) is commonly used for postoperative pain control after laparoscopic cholecystectomy. However, few studies have analyzed its effect on pulmonary function. The goal of this study was to elucidate the effect of ultrasound-guided bilateral TAPB on pulmonary function preservation and analgesia after laparoscopic cholecystectomy. METHODS We enrolled 58 patients who underwent laparoscopic cholecystectomy. Among them, 53 were randomized to group T (n = 27) and group C (n = 26). Group T and group C received ultrasound-guided bilateral TAPB with 40 ml of 0.375% ropivacaine and 40 ml of 0.9% normal saline, respectively. Visual analog scale (VAS) scores, patient-controlled analgesia (PCA) consumption, forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1), FEV1/FVC, peak expiratory flow rate (PEF), and modified Borg scale scores were measured until 24 h post-surgery. RESULTS The VAS scores were significantly lower in group T than in group C at 1 and 8 h after the surgery. PCA consumption was significantly lower in group T than in group C at all postoperative time points. FEV1, PEF, and FEV1/FVC were more preserved in group T than in group C at 1 h. Group T had significantly lower modified Borg scale scores than did group C at 1 and 8 h. CONCLUSION Ultrasound-guided TAPB is effective in pulmonary function preservation and pain control after laparoscopic cholecystectomy. Therefore, it could be a great option for multimodal analgesia, preservation of pulmonary function, prevention of pulmonary complications including atelectasis, and promotion of postoperative recovery after laparoscopic cholecystectomy. CLINICAL REGISTRATION This study was enrolled in the Clinical Research Information Service (Clinical Research Information Service, KCT0004435, Hwa Yong Shin, 2019-08-19).
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Affiliation(s)
- Seung Young Lee
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Choon Gun Ryu
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Young Hyun Koo
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Hana Cho
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Haesun Jung
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Yong Hee Park
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Hyun Kang
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Seung Eun Lee
- Department of Surgery, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - Hwa Yong Shin
- Department of Anesthesiology and Pain Medicine, College of Medicine, Chung-Ang University, Seoul, Republic of Korea.
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, 102 Heukseok-ro, Dongjak-gu, Seoul, 06973, Republic of Korea.
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Kim JC, Lee SY, Kang SY, Kim HO, Park CW, Chung BY. Erythema annulare centrifugum induced by COVID-19 vaccination. Clin Exp Dermatol 2021; 47:591-592. [PMID: 34731529 PMCID: PMC8652630 DOI: 10.1111/ced.15002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/27/2021] [Accepted: 11/01/2021] [Indexed: 12/19/2022]
Affiliation(s)
- J C Kim
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Lee
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Kang
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - H O Kim
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Park
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - B Y Chung
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Oh KS, Lee SY, Min SH, Ryu C, Shin HY. Hypertrophic osteoarthropathy in renal cell carcinoma - A case report. Anesth Pain Med (Seoul) 2021; 16:290-294. [PMID: 34233412 PMCID: PMC8342818 DOI: 10.17085/apm.20092] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/16/2021] [Indexed: 11/22/2022] Open
Abstract
Background Hypertrophic osteoarthropathy (HOA) is a rare clinical condition including an abnormal periosteal reaction in the long bones that causes painful swelling and tenderness of the extremities, digital clubbing, arthritis, synovitis, and joint effusions. Most cases are associated with tumorous conditions and most commonly with lung cancer. HOA has been rarely reported in association with other cancers. Case A patient with a history of recurrent renal cell carcinoma was referred to our clinic with bilateral leg pain, knee joint effusion, and arthritis. Simple radiography and bone scintigraphy confirmed a diagnosis of HOA. Oral non-steroidal anti-inflammatory drugs, joint fluid aspiration, and intra-articular injection of pain medications were found to be effective in the management of HOA pain. Conclusions HOA prognosis depends on the underlying disease, therefore, cancer treatment is critical. This case demonstrates the need to consider HOA in patients with various malignancies who present with bone or joint pain of the extremities.
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Affiliation(s)
- Kyung Seo Oh
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Seung Young Lee
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Se-Hee Min
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Choongun Ryu
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Hwa-Yong Shin
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
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Basak I, Wicky HE, McDonald KO, Xu JB, Palmer JE, Best HL, Lefrancois S, Lee SY, Schoderboeck L, Hughes SM. A lysosomal enigma CLN5 and its significance in understanding neuronal ceroid lipofuscinosis. Cell Mol Life Sci 2021; 78:4735-4763. [PMID: 33792748 PMCID: PMC8195759 DOI: 10.1007/s00018-021-03813-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 01/09/2023]
Abstract
Neuronal Ceroid Lipofuscinosis (NCL), also known as Batten disease, is an incurable childhood brain disease. The thirteen forms of NCL are caused by mutations in thirteen CLN genes. Mutations in one CLN gene, CLN5, cause variant late-infantile NCL, with an age of onset between 4 and 7 years. The CLN5 protein is ubiquitously expressed in the majority of tissues studied and in the brain, CLN5 shows both neuronal and glial cell expression. Mutations in CLN5 are associated with the accumulation of autofluorescent storage material in lysosomes, the recycling units of the cell, in the brain and peripheral tissues. CLN5 resides in the lysosome and its function is still elusive. Initial studies suggested CLN5 was a transmembrane protein, which was later revealed to be processed into a soluble form. Multiple glycosylation sites have been reported, which may dictate its localisation and function. CLN5 interacts with several CLN proteins, and other lysosomal proteins, making it an important candidate to understand lysosomal biology. The existing knowledge on CLN5 biology stems from studies using several model organisms, including mice, sheep, cattle, dogs, social amoeba and cell cultures. Each model organism has its advantages and limitations, making it crucial to adopt a combinatorial approach, using both human cells and model organisms, to understand CLN5 pathologies and design drug therapies. In this comprehensive review, we have summarised and critiqued existing literature on CLN5 and have discussed the missing pieces of the puzzle that need to be addressed to develop an efficient therapy for CLN5 Batten disease.
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Affiliation(s)
- I Basak
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - H E Wicky
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - K O McDonald
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - J B Xu
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - J E Palmer
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - H L Best
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
- School of Biosciences, Cardiff University, Sir Martin Evans Building, Museum Avenue, Wales, CF10 3AX, United Kingdom
| | - S Lefrancois
- Centre INRS-Institut Armand-Frappier, INRS, Laval, H7V 1B7, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, H3A 2B2, Canada
| | - S Y Lee
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, KS, 66160, USA
| | - L Schoderboeck
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand
| | - S M Hughes
- Neurodegenerative and Lysosomal Disease Laboratory, Department of Biochemistry, School of Biomedical Sciences, Brain Health Research Centre, University of Otago, 710 Cumberland Street, Dunedin, 9016, New Zealand.
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Jin Z, Seo J, Kim B, Lee SY, Koh HJ. Identification of a Candidate Gene for the Novel Cytoplasmic Male Sterility Derived from Inter-Subspecific Crosses in Rice ( Oryza sativa L.). Genes (Basel) 2021; 12:590. [PMID: 33920582 PMCID: PMC8073397 DOI: 10.3390/genes12040590] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 01/09/2023] Open
Abstract
Tetep-cytoplasmic male sterility (CMS) was developed through successive backcrosses between subspecies indica and japonica in rice (Oryza sativa L.), which showed abnormal anther dehiscence phenotypes. Whole genome sequencing and de novo assembly of the mitochondrial genome identified the chimeric gene orf312, which possesses a transmembrane domain and overlaps with two mitotype-specific sequences (MSSs) that are unique to the Tetep-CMS line. The encoded peptide of orf312 was toxic to Escherichia coli and inhibited cell growth compared to the control under isopropyl-β-D-1-thiogalactopyranoside (IPTG) induction. The peptide of orf312 contains COX11-interaction domains, which are thought to be a main functional domain for WA352c in the wild abortive (WA-CMS) line of rice. A QTL for Rf-Tetep (restorer-of-fertility gene(s) originating from Tetep) was identified on chromosome 10. In this region, several restorer genes, Rf1a, Rf1b, and Rf4, have previously been reported. Collectively, the interactions of orf312, a candidate gene for Tetep-CMS, and Rf-Tetep, a restorer QTL, confer male sterility and fertility restoration, respectively, which enables a hybrid rice breeding system. Further studies on orf312 and isolation of Rf-Tetep will help to identify the underlying molecular mechanism of mitochondrial ORFs with the COX11-interaction domains.
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Affiliation(s)
- Zhuo Jin
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (Z.J.); (J.S.); (B.K.); (S.Y.L.)
| | - Jeonghwan Seo
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (Z.J.); (J.S.); (B.K.); (S.Y.L.)
- Department of Plant Bioscience, College of Natural Resources and Life Science, Pusan National University, Miryang 50463, Korea
| | - Backki Kim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (Z.J.); (J.S.); (B.K.); (S.Y.L.)
| | - Seung Young Lee
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (Z.J.); (J.S.); (B.K.); (S.Y.L.)
| | - Hee-Jong Koh
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea; (Z.J.); (J.S.); (B.K.); (S.Y.L.)
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Rhie YH, Lee SY, Walck JL, Hidayati SN. Seed dormancy and germination of Asarum sieboldii, a disjunct relict species in East Asia. Plant Biol (Stuttg) 2021; 23:300-306. [PMID: 33289269 DOI: 10.1111/plb.13224] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
Abstract
Disjunct species in the same genus are a common feature of the flora in the temperate forests of East Asia and eastern North America. This study aimed to evaluate whether the kind of seed dormancy was maintained after species in the genus Asarum (Aristolochiaceae) were separated from their common ancestor. We classified the seed dormancy of Asarum sieboldii, an East Asian species, based on a phenology study and experiments in controlled temperature conditions, and then compared it to that of the previously studied A. canadense, an eastern North American species. The underdeveloped embryo of A. sieboldii grew and germinated (radicle emergence) in autumn but shoot emergence did not occur until the following spring. The seeds of A. sieboldii had deep simple epicotyl morphophysiological dormancy because the seeds with emerged radicle required a relatively long period of cold stratification to break epicotyl dormancy and produce a shoot. Although the seed of A. sieboldii had weaker radicle dormancy and stronger epicotyl dormancy compared to A. canadense, the kind of seed dormancy was the same for the two species. The trait of seed dormancy was inherited from a shared common ancestor and maintained in populations well after the two species (or their ancestors) separated. However, quantitative differences in temperature requirements for radicle and shoot emergence suggest the possibility of adaptation to the environment.
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Affiliation(s)
- Y H Rhie
- Department of Horticulture and Forestry, Pai Chai University, Daejeon, Korea
| | - S Y Lee
- Division of Horticulture & Medicinal Plant, Andong National University, Andong, Korea
| | - J L Walck
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN, USA
| | - S N Hidayati
- Department of Biology, Middle Tennessee State University, Murfreesboro, TN, USA
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Lee SY, Lee WK, Lee JW, Chung MS, Oh SW, Shin JK, Min SC. Microbial Decontamination of Rice Germ Using a Large-Scale Plasma Jet-Pulsed Light-Ultraviolet-C Integrated Treatment System. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02590-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ju YJ, Lee JE, Lee SY. Associations between Chewing Difficulty, Subjective Cognitive Decline, and Related Functional Difficulties among Older People without Dementia: Focus on Body Mass Index. J Nutr Health Aging 2021; 25:347-355. [PMID: 33575727 DOI: 10.1007/s12603-020-1521-2] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study aimed to determine whether chewing difficulty is associated with subjective cognitive decline (SCD) and related functional difficulties by body mass index. DESIGN A population-based cross-sectional study. SETTING AND PARTICIPANTS A nationwide sample of 54,004 individuals aged ≥65 years from the 2018 Korea Community Health Survey. MEASUREMENTS SCD and SCD-related functional difficulties were measured using the cognitive decline module of the Behavioral Risk Factor Surveillance System. Chewing difficulty was assessed based on a self-report questionnaire from an oral health-related behaviors interview survey. BMI was calculated from objective values by measuring height and weight through a physical meter. RESULTS Among the 54,004 individuals, the prevalence of SCD in underweight, overweight, and obesity group was 33.6% (n = 806), 30.3% (n = 9,691), and 28.7% (n=5,632) respectively. Chewing difficulty was associated with SCD and SCD-related functional difficulties. This association was more pronounced in underweight (BMI: <18.5 kg/m2) people [underweight: (odds ratio [OR] = 1.68, 95% confidence interval [CI] 1.48-1.92); normal weight: OR = 1.13, 95% CI 1.04-1.22; obese: OR = 1.15, 95% CI 1.05-1.27]. Similar trends were demonstrated for SCD-related functional difficulties (underweight: OR = 1.53, 95% CI 1.17-2.01; normal weight: OR = 1.36, 95% CI 1.15-1.63; obese: OR = 1.50, 95% CI 1.22-1.86). CONCLUSIONS Chewing difficulty was associated with SCD and SCD-related functional difficulties in older people. Our results suggest that underweight status may play roles in the associations between chewing difficulty and SCD and SCD-related functional difficulties.
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Affiliation(s)
- Y J Ju
- Soon Young Lee, MD, PhD, Department of Preventive Medicine and Public Health, Ajou University School of Medicine 206 World cup-ro, Yeongtong-gu, Suwon-si Gyeonggi-do 16499, Republic of Korea, T: 82-31-219-5301, F: 82-31-219-5084, E:
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Lee CT, Chen MZ, Yip CYC, Yap ES, Lee SY, Merchant RA. Prevalence of Anemia and Its Association with Frailty, Physical Function and Cognition in Community-Dwelling Older Adults: Findings from the HOPE Study. J Nutr Health Aging 2021; 25:679-687. [PMID: 33949637 DOI: 10.1007/s12603-021-1625-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The prevalence of anemia and its impact on frailty and physical function amongst the multiethnic older populations in the Southeast Asian (SEA) countries are often not well studied. Singapore, a nation comprised of multiethnic communities, is one of the most rapidly aging population globally. We aim to evaluate the prevalence of anemia and its impact on frailty, and physical function in Healthy Older People Everyday (HOPE)- an epidemiologic population-based study on community-dwelling older adults in Singapore. DESIGN Cross-sectional study. SETTING Community. PARTICIPANTS 480 adults ≥ 65 years old. MEASUREMENTS Data were collected from interviewers-administered questionnaires on socio-demographics, FRAIL scale, Mini-Mental State Examination, EQ-5D, Barthel Index, and Lawton index. Hemoglobin concentration and physical assessments, including anthropometry, grip strength, timed up-and-go (TUG) were measured. RESULTS The overall prevalence of anemia was 15.2% (73 out of 480). The Indian ethnic group had the highest prevalence of anemia (32%, OR=3.02; 95%CI= 1.23-7.41) with the lowest hemoglobin concentration compared to the overall population (13.0±1.3g/L and 13.5±1.4g/L, p=0.02). Hemoglobin levels and anemia were significantly associated with frailty (OR=2.28; 95% CI=1.02-5.10), low grip strength (OR=1.79; 95% CI=1.01-3.03), ≥ one IADL impairment (OR=2.35; 95% CI=1.39-3.97). Each 1 g/dL increase in hemoglobin was associated with a 6% decrease in frailty odds after adjusting for potential covariates (OR = 0.94, 95% CI: 0.90-0.99). There was a significant difference in the mean TUG between the non-anemic (11.0±3.4 seconds) and anemic (12.3±6.0 seconds, p=0.01) counterparts, but no difference in the number of falls. CONCLUSION In our multiethnic Asian population, anemia was adversely associated with frailty, decreased muscle strength, and IADL impairment. Health policies on anemia screening should be employed to avoid or potentially delay or reverse these adverse outcomes associated with anemia. Recognition, evaluation, and treatment of anemia amongst this vulnerable population is warranted.
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Affiliation(s)
- C-T Lee
- Chun-Tsu Lee, MBBS(Mal.), M.Med (S'pore), MRCP(UK), FRCPath (UK), FAMS, Fast and Chronic Program, Alexandra Hospital, National University Health System, 378 Alexandra Road, Singapore 159964. Telephone: +65 64722000.
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Chan NH, Lee SY, Cheng NHY, Wong HY, Lo WK, Lung DC. Hospital infection control best practice: Five essential elements to successfully minimize healthcare-associated COVID-19. Infect Prev Pract 2020; 3:100110. [PMID: 34316572 PMCID: PMC7837126 DOI: 10.1016/j.infpip.2020.100110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 12/10/2020] [Indexed: 01/22/2023] Open
Affiliation(s)
- N H Chan
- Infection Control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - S Y Lee
- Infection Control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - N H Y Cheng
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - H Y Wong
- Infection Control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - W K Lo
- Infection Control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - D C Lung
- Infection Control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region.,Department of Pathology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
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Lee SY, Park HH, Min SC. Pulsed light plasma treatment for the inactivation of Aspergillus flavus spores, Bacillus pumilus spores, and Escherichia coli O157:H7 in red pepper flakes. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kim SH, Lee HY, Lee SY, Lee BS. Development and Validation of a Sexual-Outlook Questionnaire (SOQ) for Adult Populations in the Republic of Korea. Int J Environ Res Public Health 2020; 17:ijerph17228681. [PMID: 33238440 PMCID: PMC7700134 DOI: 10.3390/ijerph17228681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/12/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022]
Abstract
A Sexual Outlook Questionnaire (SOQ) that can apply to a wide range of Korean populations, including disabled people, was necessary for comprehensive research on improving clinical practice of sexual education and developing sex-related intervention programs. We developed the SOQ and tested its validity with exploratory and confirmatory factor analysis and multi-trait/-item matrix analyses. Internal consistency was assessed using Cronbach's α coefficient for item total correlations. We studied a total of 334 married or previously married adults with no cognitive impairment in the community settings. The eleven survey items were included in the final SOQ. Three factors were found: The first, "personal benefit", was devoted to the impact of one's sexual life and included four questions about the health-promoting effects and their recognition of healthiness, youth, and vitality as benefits of their sexual life. The second, "relational value", included four questions about sex as an expression of love and means of communication, and its effect on the improvement of their relationship with their spouse (partner). The third, "sexual endeavor", included three questions about the handling of sex-related problems, consulting with an expert, and sexual education. The questionnaire can briefly measure the sexual outlook of any married or previously married adult, regardless of disability.
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Affiliation(s)
- Sun Houng Kim
- National Rehabilitation Center, Seoul 01022, Korea; (S.H.K.); (B.S.L.)
| | - Hyang Yuol Lee
- College of Nursing, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: or ; Tel.: +82-2-2258-7406
| | - Seung Young Lee
- College of Nursing Science, Kyung Hee University, Seoul 02447, Korea;
| | - Bum Suk Lee
- National Rehabilitation Center, Seoul 01022, Korea; (S.H.K.); (B.S.L.)
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Lee SY, Kim CH, Hwang BS, Choi KM, Yang IJ, Kim GY, Choi YH, Park C, Jeong JW. Protective Effects of Oenothera biennis against Hydrogen Peroxide-Induced Oxidative Stress and Cell Death in Skin Keratinocytes. Life (Basel) 2020; 10:life10110255. [PMID: 33120909 PMCID: PMC7693688 DOI: 10.3390/life10110255] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/25/2020] [Accepted: 10/21/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Oenothera biennis (evening primrose) produces bioactive substances with a diverse range of pharmacological functions. However, it is currently unknown whether extract prepared from the aerial parts of O. biennis (APOB) can protect the skin against oxidative stress. OBJECTIVE The aim of this study is to investigate the protective effects of APOB against oxidative stress-induced damage in human skin keratinocytes (HaCaT) and elucidate the underlying mechanisms. METHODS We pretreated HaCaT cells with various concentrations of APOB or the antioxidant N-acetyl-L-cysteine before applying H2O2. We then compared the cell viability, intracellular reactive oxygen species (ROS) production, and DNA and mitochondrial damage between pretreated and untreated control cells using a range of assays, flow cytometry, and Western blot analysis and also examined the reducing power and DPPH free radical scavenging activity of APOB. RESULTS APOB pretreatment significantly increased cell viability, effectively attenuated H2O2-induced comet tail formation, and inhibited H2O2-induced phosphorylation of the histone γH2AX, as well as the number of apoptotic bodies and Annexin V-positive cells. APOB was found to have high reducing power and DPPH radical scavenging activity and also exhibited scavenging activity against intracellular ROS accumulation and restored the loss of mitochondrial membrane potential caused by H2O2. APOB pretreatment almost totally reversed the enhanced cleavage of caspase-3, the degradation of poly (ADP-ribose)-polymerase (PARP), DNA fragmentation that usually occurs in the presence of H2O2, and increased the levels of heme oxygenase-1 (HO-1), a potent antioxidant enzyme that is associated with the induction of nuclear factor-erythroid 2-related factor 2 (Nrf2). CONCLUSIONS APOB can protect HaCaT cells from H2O2-induced DNA damage and cell death by blocking cellular damage related to oxidative stress via a mechanism that affects ROS elimination and by activating the Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Seung Young Lee
- Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Korea; (S.Y.L.); (C.H.K.); (B.S.H.); (K.-M.C.)
| | - Chul Hwan Kim
- Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Korea; (S.Y.L.); (C.H.K.); (B.S.H.); (K.-M.C.)
| | - Buyng Su Hwang
- Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Korea; (S.Y.L.); (C.H.K.); (B.S.H.); (K.-M.C.)
| | - Kyung-Min Choi
- Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Korea; (S.Y.L.); (C.H.K.); (B.S.H.); (K.-M.C.)
| | - In-Jun Yang
- Department of Physiology, College of Oriental Medicine, Dongguk University, Gyeongju 780-714, Korea;
| | - Gi-Young Kim
- Laboratory of Immunobiology, Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea;
| | - Yung Hyun Choi
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea;
| | - Cheol Park
- Division of Basic Sciences, College of Liberal Studies, Dong-eui University, Busan 47340, Korea
- Correspondence: (C.P.); (J.-W.J.); Tel.: +82-51-890-1530 (C.P.); +82-54-530-0884 (J.-W.J.)
| | - Jin-Woo Jeong
- Nakdonggang National Institute of Biological Resources, 137, Donam 2-gil, Sangju-si, Gyeongsangbuk-do 37242, Korea; (S.Y.L.); (C.H.K.); (B.S.H.); (K.-M.C.)
- Correspondence: (C.P.); (J.-W.J.); Tel.: +82-51-890-1530 (C.P.); +82-54-530-0884 (J.-W.J.)
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Bang IH, Kim YE, Lee SY, Min SC. Microbial decontamination of black peppercorns by simultaneous treatment with cold plasma and ultraviolet C. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102392] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Roh SH, Oh YJ, Lee SY, Kang JH, Min SC. Inactivation of Escherichia coli O157:H7, Salmonella, Listeria monocytogenes, and Tulane virus in processed chicken breast via atmospheric in-package cold plasma treatment. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109429] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Wong SCY, Kwong RTS, Wu TC, Chan JWM, Chu MY, Lee SY, Wong HY, Lung DC. Risk of nosocomial transmission of coronavirus disease 2019: an experience in a general ward setting in Hong Kong. J Hosp Infect 2020; 105:119-127. [PMID: 32259546 PMCID: PMC7128692 DOI: 10.1016/j.jhin.2020.03.036] [Citation(s) in RCA: 156] [Impact Index Per Article: 39.0] [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: 03/11/2020] [Accepted: 03/27/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Coronavirus disease 2019 (COVID-19) was first reported in Wuhan in December 2019 and has rapidly spread across different cities within and outside China. Hong Kong started to prepare for COVID-19 on 31st December 2019 and infection control measures in public hospitals were tightened to limit nosocomial transmission within healthcare facilities. However, the recommendations on the transmission-based precautions required for COVID-19 in hospital settings vary from droplet and contact precautions, to contact and airborne precautions with placement of patients in airborne infection isolation rooms. AIM To describe an outbreak investigation of a patient with COVID-19 who was nursed in an open cubicle of a general ward before the diagnosis was made. METHOD Contacts were identified and risk categorized as 'close' or 'casual' for decisions on quarantine and/or medical surveillance. Respiratory specimens were collected from contacts who developed fever, and/or respiratory symptoms during the surveillance period and were tested for SARS-CoV-2. FINDINGS A total of 71 staff and 49 patients were identified from contact tracing, seven staff and 10 patients fulfilled the criteria of 'close contact'. At the end of 28-day surveillance, 76 tests were performed on 52 contacts and all were negative, including all patient close contacts and six of the seven staff close contacts. The remaining contacts were asymptomatic throughout the surveillance period. CONCLUSION Our findings suggest that SARS-CoV-2 is not spread by an airborne route, and nosocomial transmissions can be prevented through vigilant basic infection control measures, including wearing of surgical masks, hand and environmental hygiene.
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Affiliation(s)
- S C Y Wong
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - R T-S Kwong
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - T C Wu
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - J W M Chan
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - M Y Chu
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - S Y Lee
- Infection control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - H Y Wong
- Infection control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region
| | - D C Lung
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong Special Administrative Region; Infection control Team, Queen Elizabeth Hospital, Hong Kong Special Administrative Region.
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Lee SY, Yeom SS, Kim CH, Kim YJ, Kim HR. A new aortoiliac calcification scoring system to predict grade C anastomotic leak following rectal cancer surgery. Tech Coloproctol 2020; 24:843-849. [PMID: 32468245 DOI: 10.1007/s10151-020-02246-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/19/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Aortoiliac calcification may be a surrogate marker of decreased visceral perfusion causing anastomotic leak (AL). The aim of this study was to evaluate the predictive role of aortoiliac calcification for AL after rectal cancer surgery. METHODS We enrolled patients with primary rectal cancer who had restorative resection at our institution between January 2013 and December 2015. An aortoiliac calcification score was calculated as the sum of calcification scores at the infrarenal aorta (0: no, 1: ≤ 3 cm, 2: > 3 cm) and the common iliac arteries (0: no, 1: unilateral, 2: bilateral). AL was classified into three grades: grade A, requiring no intervention; grade B, requiring therapeutic intervention without re-laparotomy; and grade C, requiring re-laparotomy. Clinicopathological characteristics were analyzed to identify risk factors for AL. RESULTS There were 583 patients. Three-hundred forty-five (59.2%) had an aortoiliac calcification score ≥ 3, and 37 (6.3%) patients experienced AL, in 30 cases (5.1%) grade C AL. Patients with an aortoiliac calcification score ≥ 3 had a higher incidence of grade C AL (6.7% vs. 2.9%, p = 0.045). Multivariate logistic regression analysis revealed that an aortoiliac calcification score ≥ 3 was an independent risk factor for grade C AL (odds ratio = 2.669, 95% confidence interval 1.066-6.686, p = 0.036). CONCLUSIONS Aortoiliac calcification may be considered a risk factor for grade C AL after rectal cancer surgery.
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Affiliation(s)
- S Y Lee
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, South Korea
| | - S-S Yeom
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, South Korea
| | - C H Kim
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, South Korea
| | - Y J Kim
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, South Korea
| | - H R Kim
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, 322 Seoyang-ro Hwasun-eup, Hwasun-gun, Jeonnam, 58128, South Korea.
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Kim KW, Chung S, Lee SY, Yoon SS, Kang HR. Successful Infusion of Obinutuzumab by Desensitization: A Case of Anaphylactic Shock During Desensitization. J Investig Allergol Clin Immunol 2020; 30:457-459. [PMID: 32376522 DOI: 10.18176/jiaci.0581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- K W Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S Chung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - S Y Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.,Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea
| | - S S Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - H R Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.,Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
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26
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Kim YJ, Jeong YJ, Kim SH, Kim YJ, Lee SY, Kim TY, Choi MS, Ahn JH. Preparedness for COVID-19 infection prevention in Korea: a single-centre experience. J Hosp Infect 2020; 105:370-372. [PMID: 32302723 PMCID: PMC7194524 DOI: 10.1016/j.jhin.2020.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/09/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Y J Kim
- Division of Infectious Disease, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea; Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea.
| | - Y J Jeong
- Division of Infectious Disease, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea; Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - S H Kim
- Division of Infectious Disease, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea; Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea; Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - Y J Kim
- Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - S Y Lee
- Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - T Y Kim
- Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - M S Choi
- Infection Control Team, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea
| | - J H Ahn
- Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, South Korea; Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Cho H, Kim DR, Lee JJ, Lee SY, Park YB, Kim HS, Shin HY. Ultrasound-guided treatment of common peroneal neuropathy caused by Baker's cyst: a clinical note - A case report. Anesth Pain Med (Seoul) 2020; 15:199-204. [PMID: 33329814 PMCID: PMC7713829 DOI: 10.17085/apm.2020.15.2.199] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/02/2019] [Accepted: 07/03/2019] [Indexed: 11/17/2022] Open
Abstract
Background Baker's cysts are usually located in the posteromedial side of the knee and seldom cause neuropathy. Case We describe the rare case of a 57-year-old woman with a popliteal cyst who presented with limping gait and pain in her lower leg. She was electronically diagnosed with common peroneal neuropathy and transferred to our pain clinic. On ultrasound examination, about 2.0 × 1.2 cm sized popliteal cyst was found to extend to the fibular head, compressing the common peroneal nerve. Therefore, ultrasound-guided aspiration of the cyst and a common peroneal nerve block were performed. Immediately after the procedure, the pain, dysesthesia, and limping gait were relieved. Although her pain and dysesthesia were relieved, she underwent the surgery because of limping gait. Conclusions In this case, we found the Baker's cyst, the cause of the common peroneal neuropathy, and treated it immediately by just simple ultrasound examination and aspiration.
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Affiliation(s)
- Hana Cho
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Dong-Rim Kim
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - Je Jin Lee
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea
| | | | - Yong Bum Park
- Department of Orthopedic Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Hee Sung Kim
- Department of Pathology, Chung-Ang University Hospital, Seoul, Korea
| | - Hwa-Yong Shin
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea.,Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine, Seoul, Korea
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Woo W, Jeong JS, Kim DK, Lee CM, Choi SH, Suh JY, Lee SY, Harjo S, Kawasaki T. Stacking Fault Energy Analyses of Additively Manufactured Stainless Steel 316L and CrCoNi Medium Entropy Alloy Using In Situ Neutron Diffraction. Sci Rep 2020; 10:1350. [PMID: 31992801 PMCID: PMC6987211 DOI: 10.1038/s41598-020-58273-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [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: 09/11/2019] [Accepted: 01/10/2020] [Indexed: 11/08/2022] Open
Abstract
Stacking fault energies (SFE) were determined in additively manufactured (AM) stainless steel (SS 316 L) and equiatomic CrCoNi medium-entropy alloys. AM specimens were fabricated via directed energy deposition and tensile loaded at room temperature. In situ neutron diffraction was performed to obtain a number of faulting-embedded diffraction peaks simultaneously from a set of (hkl) grains during deformation. The peak profiles diffracted from imperfect crystal structures were analyzed to correlate stacking fault probabilities and mean-square lattice strains to the SFE. The result shows that averaged SFEs are 32.8 mJ/m2 for the AM SS 316 L and 15.1 mJ/m2 for the AM CrCoNi alloys. Meanwhile, during deformation, the SFE varies from 46 to 21 mJ/m2 (AM SS 316 L) and 24 to 11 mJ/m2 (AM CrCoNi) from initial to stabilized stages, respectively. The transient SFEs are attributed to the deformation activity changes from dislocation slip to twinning as straining. The twinning deformation substructure and atomic stacking faults were confirmed by electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM). The significant variance of the SFE suggests the critical twinning stress as 830 ± 25 MPa for the AM SS 316 L and 790 ± 40 MPa for AM CrCoNi, respectively.
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Affiliation(s)
- W Woo
- Neutron Science Center, Korea Atomic Energy Research Institute, Daejeon, 34057, Korea.
| | - J S Jeong
- Materials Technology Development Team, Doosan heavy industries, Changwon, 44610, Korea
| | - D-K Kim
- School of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Korea
| | - C M Lee
- Neutron Science Center, Korea Atomic Energy Research Institute, Daejeon, 34057, Korea
| | - S-H Choi
- Department of Printed Electronics Engineering, Sunchon National University, Sunchon, 57922, Korea
| | - J-Y Suh
- High Temperature Energy Materials Research Center, Korea Institute of Science and Technology, Seoul, 02792, Korea
| | - S Y Lee
- Department of Materials Science and Engineering, Chungnam National University, Daejeon, 34134, Korea
| | - S Harjo
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Naka, Ibaraki, 319-1195, Japan
| | - T Kawasaki
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Naka, Ibaraki, 319-1195, Japan
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Lee SY, Lee SH, Park YH. P799 The echocardiographic and clinical characteristics of Fabry patients without overt left ventricular hypertrophy but progressing despite on enzyme replacement therapy. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.455] [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
Fabry disease (FD) is X-linked genetic disorder caused by the deficiency or absent activity of lysosomal α- galactosidase. When the heart is involved, progressive left ventricular hypertrophy (LVH) is the key feature. Although, LVH is not present in all subjects, some of them progress with LVH despite enzyme replacement therapy (ERT). The present study aimed to evaluate the characteristics of patient of FD without overt LVH, but progresses with their left ventricular mass index (LVMI).
Method : This study includes subjects carrying genetic mutations for FD without LVH (n = 12) in a single tertiary center. ‘Decreasing LVMI group (Group1)’ was defined when pre-ERT LVMI minus last LVMI value obtained by echocardiography was positive, and when negative, defined as ‘Increasing LVMI group (Group 2)’. The baseline characteristics and echocardiographic parameters including global strain was analyzed.
Result : Total 6 patients were classified as Group 1 and 2 each. The median age at diagnosis for male was 21 vs 27 for each group, and 21 vs 31 for female. The median follow-up duration was 4.0 vs 5.7 yr. The antibody formation for replaced enzyme was 3 for Group 2 and any family member who developed overt LVH was much 1 vs 3 for group 1 vs 2. Initial 3 plane GLS was worse and showed trend to drop in Group 2.
Conclusion : In the Fabry patients get worse with their LVMI but still not developed overt LVH despite enzyme replacement therapy, there are some clinical and echo-parameter difference. These findings could suggest insufficient enzyme replacement therapy.
Group 1 (n = 6) Group 2 (n = 6) Female/Male 4/2 3/3 Age of at Dx (Female) (median) 21 28 Age of at Dx (Male) (median) 21 31 F/U duration (median) 4.0 yrs 5.7 yrs Antibody formation 0 3 Any Overt LVH family Genotype c.56T > C c.40-11T > A, 782_delG, c.658C > T Initial LVMI (Median) 98.2g/m2 70.9g/m2 Initial GLS (3P) -19 -17.8 Continuously elevated LysoGb3 2 4 Proteinuria >300mg 1 3 (1 preparing HD)
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Affiliation(s)
- S Y Lee
- Pusan National University Yangsan Hospital, Yangsan-si, Korea (Republic of)
| | - S H Lee
- Pusan National University Yangsan Hospital, Yangsan-si, Korea (Republic of)
| | - Y H Park
- Pusan National University Yangsan Hospital, Yangsan-si, Korea (Republic of)
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30
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Wang Y, Hays RD, Marcus M, Maida CA, Shen J, Xiong D, Coulter ID, Lee SY, Spolsky VW, Crall JJ, Liu H. Developing Children's Oral Health Assessment Toolkits Using Machine Learning Algorithm. JDR Clin Trans Res 2019; 5:233-243. [PMID: 31710817 DOI: 10.1177/2380084419885612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES Evaluating children's oral health status and treatment needs is challenging. We aim to build oral health assessment toolkits to predict Children's Oral Health Status Index (COHSI) score and referral for treatment needs (RFTN) of oral health. Parent and Child toolkits consist of short-form survey items (12 for children and 8 for parents) with and without children's demographic information (7 questions) to predict the child's oral health status and need for treatment. METHODS Data were collected from 12 dental practices in Los Angeles County from 2015 to 2016. We predicted COHSI score and RFTN using random Bootstrap samples with manually introduced Gaussian noise together with machine learning algorithms, such as Extreme Gradient Boosting and Naive Bayesian algorithms (using R). The toolkits predicted the probability of treatment needs and the COHSI score with percentile (ranking). The performance of the toolkits was evaluated internally and externally by residual mean square error (RMSE), correlation, sensitivity and specificity. RESULTS The toolkits were developed based on survey responses from 545 families with children aged 2 to 17 y. The sensitivity and specificity for predicting RFTN were 93% and 49% respectively with the external data. The correlation(s) between predicted and clinically determined COHSI was 0.88 (and 0.91 for its percentile). The RMSEs of the COHSI toolkit were 4.2 for COHSI (and 1.3 for its percentile). CONCLUSIONS Survey responses from children and their parents/guardians are predictive for clinical outcomes. The toolkits can be used by oral health programs at baseline among school populations. The toolkits can also be used to quantify differences between pre- and post-dental care program implementation. The toolkits' predicted oral health scores can be used to stratify samples in oral health research. KNOWLEDGE TRANSFER STATEMENT This study creates the oral health toolkits that combine self- and proxy- reported short forms with children's demographic characteristics to predict children's oral health and treatment needs using Machine Learning algorithms. The toolkits can be used by oral health programs at baseline among school populations to quantify differences between pre and post dental care program implementation. The toolkits can also be used to stratify samples according to the treatment needs and oral health status.
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Affiliation(s)
- Y Wang
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA
| | - R D Hays
- Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,Department of Medicine, Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.,RAND Corporation, Santa Monica, CA, USA
| | - M Marcus
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - C A Maida
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, CA, USA
| | - J Shen
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - D Xiong
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - I D Coulter
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,RAND Corporation, Santa Monica, CA, USA
| | - S Y Lee
- Division of Constitutive & Regenerative Sciences, Section of Restorative Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - V W Spolsky
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - J J Crall
- Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - H Liu
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,Department of Medicine, Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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Lee SY, Chau JPC, Choi KC, Lo SHS. Feasibility of a guided participation discharge program for very preterm infants in a neonatal intensive care unit: a randomized controlled trial. BMC Pediatr 2019; 19:402. [PMID: 31684903 PMCID: PMC6827218 DOI: 10.1186/s12887-019-1794-y] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 10/21/2019] [Indexed: 11/26/2022] Open
Abstract
Background Previous studies showed that parents of very preterm infants expressed feelings of incompetence and experienced high levels of stress upon the discharge of their infants. We conducted a systematic review of seven studies and observed potential benefits for parental outcomes when using discharge interventions that adopted guided participation (GP). More evidence is needed on the effective doses of discharge interventions underpinned by the principles of GP. Aim To investigate the feasibility and preliminarily estimate the effects on parental competence and stress outcomes of a newly developed, nurse-led, GP discharge program for mothers of very preterm infants. Methods A two-arm randomized controlled trial was conducted in a neonatal intensive care unit (NICU). Mothers of infants with gestational ages of ≤32 weeks who had no congenital malformations and did not need to undergo major surgeries were recruited. All mothers were the primary caregivers to their infants. The intervention group received a nurse-led GP discharge intervention (three structured 30- to 60-min GP sessions and one follow-up phone call). The control group received usual care. The parental outcomes were measured using the Parenting Sense of Competence Scale (C-PSOC) and Perceived Stress Scale (C-PSS) at baseline (T0), on the day of discharge (T1), after the follow-up phone call (within 72 h after discharge) (T2), and 1 month after discharge (T3). The outcomes were analyzed using generalized estimating equations based on intention-to-treat principles. Results Thirty infant–mother dyads were recruited. Greater improvements in the C-PSOC score were observed in the intervention group than in the control group at T1 and T2, although these differences were statistically insignificant. The intervention group exhibited greater improvements than the control group in the C-PSS scores at T1, T2, and T3, although these differences were also not statistically significant. Conclusions The findings suggest that a GP discharge intervention could improve parenting competence and stress among mothers with very preterm infants. The absence of adverse events suggests that the GP discharge intervention could be feasibly implemented in NICU settings. This feasibility study was not powered to determine the effectiveness of the intervention but is anticipated to lay the foundation for a future full-scale study. Trial registration ClinicalTrials.gov Identifier: NCT03668912. Date of registration: 13 September 2018 (retrospectively registered).
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Affiliation(s)
- S Y Lee
- Department of Pediatrics, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, N.T., Hong Kong SAR
| | - J P C Chau
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR.
| | - K C Choi
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR
| | - S H S Lo
- The Nethersole School of Nursing, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR
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32
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Hong D, Choi KH, Youn T, Lee SY, Bak M, M KM, Cho YH, Yang JH. P1711The association of multidisciplinary team approach with clinical outcomes in patients with acute myocardial infarction underwent veno-arterial extracorporeal membrane oxygenation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0466] [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
Multidisciplinary team approach is necessary for the management of critically-ill patients. However, limited data are available on the impact of specialized extracorporeal membrane oxygenation (ECMO) team on clinical outcomes in patients with acute myocardial infarction (AMI) complicated by cardiogenic shock.
Objectives
This study aimed to identify whether specialized ECMO team is associated with improved in-hospital mortality in AMI patients underwent venoarterial ECMO.
Methods
A total of 255 AMI patients underwent venoarterial ECMO from May 2004 to July 2018 were enrolled. In January 2014, multidisciplinary ECMO team was founded at our institution. Eligible patients were classified into pre-ECMO team group (n=131) and post-ECMO team group (n=124). The primary outcome was in-hospital mortality.
Results
In-hospital mortality (54.2% vs. 33.9%, p=0.002) and cardiac intensive care unit mortality (45.0% vs. 25.0%, p=0.001) were significantly lower after the implantation of multidisciplinary ECMO team (pre ECMO team vs. post-ECMO team). On binary logistic regression model, the multidisciplinary ECMO team approach was associated with lower risk of in-hospital mortality (odds ratio 0.36, 95% confidence interval 0.19–0.67, p=0.001). Incidence of all-cause mortality (58.3% vs. 35.2%, p<0.001) and rehospitalization due to heart failure (28.2% vs. 6.4%, p=0.001) at 6-months follow-up were also significantly lower in the post-ECMO team group than in the pre-ECMO team group.
Clinical outcomes Variables Total (N=255) Pre-ECMO team (N=131) Post-ECMO team (N=124) P value In-hospital mortality 113 (44.3) 71 (54.2) 42 (33.9) 0.002 Cardiovascular death 90 (35.3) 59 (45.0) 31 (25.0) 0.001 Noncardiovascular death 23 (9.0) 12 (9.2) 11 (8.9) >0.99 Cardiac intensive care unit mortality 106 (41.6) 68 (51.9) 38 (30.6) 0.001 Successful weaning of ECMO 169 (66.3) 75 (57.3) 94 (75.8) 0.002 Data are presented as n (%). Abbreviations: ECMO, extracorporeal membrane oxygenation.
Incidence of death, readmission for HF
Conclusions
The multidisciplinary ECMO team approach was associated with improved clinical outcomes in AMI patients complicated by cardiogenic shock. Our data support that specialized ECMO team is indispensable to improve outcomes in patients with AMI with refractory cardiogenic shock.
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Affiliation(s)
- D Hong
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - K H Choi
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - T Youn
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - S Y Lee
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - M Bak
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - K M M
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - Y H Cho
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - J H Yang
- Samsung Medical Center, Seoul, Korea (Republic of)
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Rhee MY, Kim JH, Namgung J, Lee SY, Cho DK, Choi TY, Kim SY. P800Proposal of an algorithm for the diagnosis of hypertension by using out-of-office blood pressure measurements. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0399] [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 and purpose
Based on the data of patients who measured office BP (OBP) in controlled condition, home BP (HBP), and 24-hour ambulatory BP (24hABP) for diagnosis of hypertension, we developed and validated a diagnostic algorithm for hypertension.
Methods
Patients who have high BP (≥140/90 mmHg) at the outpatient clinic were referred to measure OBP in controlled condition, HBP and 24hABP. The OBP was measured three times at each visit for 3 days in controlled condition by using a validated oscillometric device. HBP was measured for 7 days in triplicates every morning and evening. The 24hABP was measured on the 8th day. Same study protocol was used for development and validation population.
Results
In the development of algorithm, 319 patients were recruited and data of 256 patients (51.8±9.7 years, 119 men) with valid HBP and 24hABP measurements were analyzed. In the validation of algorithm, 300 patients were recruited and data of 257 patients (52.4±9.8 years, 126 men) with valid HBP and 24hABP measurements were analyzed. In the development population, the prevalence of masked hypertension was 19.5% (n=50) and most of them (n=47, 94%) was in the range of 130–139/80–89 mmHg. The BP in the range of 130–144/80–94 mmHg was defined as the grey zone of OBP, because prevalence of white-coat hypertension was lowered to 1.6% from 4.3% with threshold of 145/95 mmHg. The diagnostic sensitivity, specificity, positive and negative predictive value of OBP was improved to 97.4%, 76.5, 96.5% and 81.3% after excluding the grey zone of OBP (n=125). The diagnostic agreement between 24hABP and HBP in the grey zone of OBP was 64%. The diagnostic sensitivity, specificity, positive and negative predictive value of HBP were 88.8%, 74.7, 93.5% and 61.5% after excluding the grey zone of HBP (130–134/80–84 mmHg, n=28). Based upon these results, we developed a diagnostic algorithm for hypertension by using on out-of-office BP measurements to improved diagnostic accuracy of hypertension (Figure). In the validation population, the developed algorithm showed similar diagnostic accuracy.
Diagnostic algorithm for hypertension
Conclusion
For accurate diagnosis of hypertension, OBP measurement according to guidelines and 24hABP measurement to grey zone of OBP is preferred. To improve diagnostic accuracy of HBP measurement, 24hABP measurement to grey zone of HBP is required.
Acknowledgement/Funding
Part of this study was supported by a grand from Dong-A ST Co. Ltd., Seoul, Korea.
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Affiliation(s)
- M Y Rhee
- Dongguk University Ilsan Hospital, Goyang-si, Korea (Republic of)
| | - J H Kim
- Dongguk University Ilsan Hospital, Goyang-si, Korea (Republic of)
| | - J Namgung
- Inje University Ilsan Paik Hospital, Goyang, Korea (Republic of)
| | - S Y Lee
- Inje University Ilsan Paik Hospital, Goyang, Korea (Republic of)
| | - D K Cho
- Hospital Myongji, Goyang, Korea (Republic of)
| | - T Y Choi
- Seoul Red Cross Hospital, Seoul, Korea (Republic of)
| | - S Y Kim
- Seoul Medical Center, Seoul, Korea (Republic of)
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Sung J, Ahn KT, Cho BR, Lee SY, Kim BJ, Kim DK, Park JI, Lee WS. 1423Adherence to triple component antihypertensive regimen is higher in single-pill combination than two-pill regimen: data from a randomized controlled trial using medication event monitoring system. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Simplicity of regimen is known to be an important determinant of medication adherence and using single-pill combination (SPC) in hypertension treatment resulted in better adherence and persistence than free-equivalent combination. However, this finding has been studied only in dual-component antihypertensive treatments and in observational studies using medication possession ratio as an index of adherence. Medication event monitoring system (MEMS) is considered to be the gold standard in estimating medication adherence.
Purpose
To investigate the superiority in adherence of triple-component SPC compared to equivalent two-pill regimen using MEMS
Methods
This is a multi-center open-label randomized controlled trial. Inclusion criteria were hypertensive patients whose clinic blood pressure is not adequately controlled (systolic >140 mmHg or diastolic >90 mmHg) with combination antihypertensive regimen comprising two of three classes (angiotensin receptor blocker, calcium channel blocker and thiazide diuretics) for at least 4 weeks. Eligible patients were randomized either to single-pill (triple-component SPC, olmesartan/amlodipine/ hydrochlorothiazide 20/5/12.5 mg) or two-pill (dual-component SPC + one free pill, olmesartan/hydrochlorothiazide 20/12.5 mg + amlodipine 5 mg) groups and maintained for 12 weeks. Medications were dispensed in MEMS. Primary outcomes were the difference of percentage of dose taken (PDT) and percentage of days with prescribed dose taken correctly (PDTc) between single- and two-pill therapy, calculated from MEMS data.
Results
From 8 hospitals, 146 hypertensive patients were randomized into single- and two-pill groups. Final analysis was done in 65 and 66 patients in each group from which adherence index could be obtained. Baseline clinical characteristics of the two groups were not different. The single-pill group had significantly higher PDT and PDTc compared to the two-pill group. (median (25–75 percentile) (%), PDT 95.1 (87.9 - 100.0) vs 91.2 (79.8 - 96.5); PDTc 93.1 (79.8 - 96.5) vs 91.3 (70.7 - 96.4), p = both 0.04, by Wilcoxon rank sum test)
Percent dose taken
Conclusion
Single-pill combination of triple-component antihypertensive regimen showed superior adherence compared to equivalent two-pill therapy. Reducing pill burden by using SPC is a relevant strategy to enhance the adherence to multi-drug antihypertensive therapy.
Acknowledgement/Funding
Daiichi-Sankyo
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Affiliation(s)
- J Sung
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea (Republic of)
| | - K T Ahn
- Chungnam National University Hospital, Daejeon, Korea (Republic of)
| | - B R Cho
- Kangwon National University Hospital, Chooncheon, Korea (Republic of)
| | - S Y Lee
- Ilsan Paik Hospital, Goyang, Korea (Republic of)
| | - B J Kim
- Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea (Republic of)
| | - D K Kim
- Busan Paik Hospital, Busan, Korea (Republic of)
| | - J I Park
- VHS Medical Center, Seoul, Korea (Republic of)
| | - W S Lee
- Chung-Ang University Hospital, Seoul, Korea (Republic of)
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Kim SY, Lee SY, Min SC. Improvement of the Antioxidant Activity, Water Solubility, and Dispersion Stability of Prickly Pear Cactus Fruit Extracts Using Argon Cold Plasma Treatment. J Food Sci 2019; 84:2876-2882. [PMID: 31513725 DOI: 10.1111/1750-3841.14791] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/18/2019] [Accepted: 08/01/2019] [Indexed: 11/30/2022]
Abstract
Microwave-powered cold plasma (CP) treatment was evaluated as a means to increase the antioxidant activity, water solubility, and dispersion stability of prickly pear cactus fruit (Opuntia ficus-indica (L.) Mill.) extract. The extract (2 g) was treated at various CP generation powers and treatment times at 25 °C to 28 °C. The antioxidant activity of the prickly pear cactus fruit extract increased by 1.8% and 1.7% after CP treatment at 750 W for 40 min and 856 W for 36 min, respectively. Both the water solubility and dispersion stability (delta backscattering) of the extract increased by 2.4% and 0.1%, respectively, following CP treatment at 644 W for 36 min. These results suggest the potential of CP treatment to increase the applicability of the prickly pear cactus fruit extract and possibly other insoluble natural antioxidant compounds in foods by improving their antioxidant activities and solubility in water. PRACTICAL APPLICATION: Prickly pear cactus fruit is a functional food with a high antioxidant concentration. This study demonstrated that cold plasma treatment improved the water solubility and dispersion stability of prickly pear cactus fruit extract without altering or improving its antioxidant activity. The obtained results suggested the potential of applying cold plasma technology to improve the applicability of the extract, which is difficult to solubilize in food systems, to various processed foods.
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Affiliation(s)
- Su Yeon Kim
- Dept. of Food Science and Technology, Seoul Women's Univ, 621 Hwarangno, Nowon-gu, Seoul, 01797, Republic of Korea
| | - Seung Young Lee
- Dept. of Food Science and Technology, Seoul Women's Univ, 621 Hwarangno, Nowon-gu, Seoul, 01797, Republic of Korea
| | - Sea C Min
- Dept. of Food Science and Technology, Seoul Women's Univ, 621 Hwarangno, Nowon-gu, Seoul, 01797, Republic of Korea
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36
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Kim KH, Lee SY, Shin J, Hwang JT, Jeon HN, Bae H. Dose-Dependent Neuroprotective Effect of Standardized Bee Venom Phospholipase A 2 Against MPTP-Induced Parkinson's Disease in Mice. Front Aging Neurosci 2019; 11:80. [PMID: 31024294 PMCID: PMC6462482 DOI: 10.3389/fnagi.2019.00080] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 10/31/2018] [Accepted: 03/19/2019] [Indexed: 12/19/2022] Open
Abstract
Parkinson’s disease (PD) is a chronic progressive neurodegenerative movement disorder characterized by the selective loss of dopaminergic neurons within the substantia nigra (SN). While the precise etiology of dopaminergic neuronal demise is elusive, multiple lines of evidence indicate that neuroinflammation is involved in the pathogenesis of PD. We have previously demonstrated that subcutaneous administration of bee venom (BV) phospholipase A2 (bvPLA2) suppresses dopaminergic neuronal cell death in a PD mouse model. In the present study, we established standardized methods for producing bvPLA2 agent isolated from crude BV at good manufacturing practice (GMP) facility. The therapeutic efficacy of purified bvPLA2 agent was examined in MPTP-induced PD mice. Importantly, administration of purified bvPLA2 in a dose-dependent manner reversed motor deficits in PD mice as well as inhibited loss of dopaminergic neurons within the SN of PD mice. The concentration-dependent action of standardized bvPLA2 appeared to be related to the induction of CD4+CD25+Foxp3+ regulatory T cells (Tregs), which, in part, inhibits T helper 1 (Th1) and Th17 polarization and suppresses microglial activation in PD mice. Taken together, these results suggest that standardized bvPLA2 purified from BV shows a neuroprotective effect against PD and thus has a potential target for treatment of PD.
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Affiliation(s)
- Kyung Hwa Kim
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Seung Young Lee
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jaekwon Shin
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | | | - Hat Nim Jeon
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyunsu Bae
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Marcus M, Maida CA, Wang Y, Xiong D, Hays RD, Coulter ID, Lee SY, Spolsky VW, Shen J, Crall JJ, Liu H. Child and Parent Demographic Characteristics and Oral Health Perceptions Associated with Clinically Measured Oral Health. JDR Clin Trans Res 2019; 3:302-313. [PMID: 30938594 DOI: 10.1177/2380084418774549] [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: 11/15/2022] Open
Abstract
OBJECTIVE To examine child and parent reports about the child's oral health and assess the associations of these reports with clinical assessments of oral health status by dental examiners. METHODS Surveys with 139 items for children and 133 items for parents were administered by Audio Computer-Assisted Self-Interview Software. In addition, the Children's Oral Health Status Index (COHSI) was computed from a dental examination. RESULTS A total of 334 families with children ages 8 to 17 y participated at 12 dental practices in Los Angeles County. Ordinary least squares regression models were estimated separately for child and parent surveys to identify items uniquely associated with the COHSI. Ten of 139 items the children reported regarding their oral health were associated with the COHSI. The strongest associations were found for child's age, aesthetic factors (straight teeth and pleased with teeth), and cognitive factors related to perception of dental appearance (pleased/happy with the look of the child's mouth, teeth, and jaws). Nine of 133 parent items about the child's oral health were associated with the COHSI in the parent model, notably being a single parent, parent's gender, parent born in the United States, pleased or happy with the look of their child's teeth, and accessing the Internet. CONCLUSION These child and parent survey items have potential to be used to assess oral health status for groups of children in programs and practices in lieu of dental screenings. KNOWLEDGE TRANSLATION STATEMENT The paper's results inform the development of a toolkit that can be used by schools, public health agencies, and dental programs to identify children with low oral health status based on parents' and children's responses to survey items across demographic, physical, mental, and social domains. These survey items can be used to inform parents of the desirability of proactively addressing inadequacies in their child's oral health status, enabling them to more rationally address dental needs.
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Affiliation(s)
- M Marcus
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - C A Maida
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,2 Division of Oral Biology and Medicine, School of Dentistry, University of California, Los Angeles, CA, USA
| | - Y Wang
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,3 Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - D Xiong
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,3 Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - R D Hays
- 4 Department of Health Policy and Management, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,5 Department of Medicine, Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.,6 RAND Corporation, Santa Monica, CA, USA
| | - I D Coulter
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,6 RAND Corporation, Santa Monica, CA, USA
| | - S Y Lee
- 7 Division of Constitutive & Regenerative Sciences, Section of Restorative Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - V W Spolsky
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - J Shen
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - J J Crall
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA
| | - H Liu
- 1 Division of Public Health and Community Dentistry, School of Dentistry, University of California, Los Angeles, CA, USA.,3 Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA.,5 Department of Medicine, Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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Roh SH, Lee SY, Park HH, Lee ES, Min SC. Effects of the treatment parameters on the efficacy of the inactivation of Salmonella contaminating boiled chicken breast by in-package atmospheric cold plasma treatment. Int J Food Microbiol 2019; 293:24-33. [PMID: 30634068 DOI: 10.1016/j.ijfoodmicro.2018.12.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 11/10/2018] [Accepted: 12/19/2018] [Indexed: 11/22/2022]
Abstract
The effects of surface coating, microbial loading, surface-to-volume ratio, sample stacking, mixing of samples with romaine lettuce, and shaking of the samples on the inactivation of Salmonella contaminating boiled chicken breast (BCB) cubes using in-package atmospheric dielectric barrier discharge cold plasma (ADCP) treatment at 38.7 kV were investigated. Whey protein coating increased the ADCP treatment efficacy in inactivating Salmonella on BCB cubes; the D-value increased from 0.2 to 1.3 min when the initial inoculum concentration increased from 3.8 to 5.7 log CFU/sample. ADCP decontaminated stacked BCB samples uniformly, and shaking during the treatment increased the inactivation rate. The concentrations of chicken protein isolate, water, and soybean oil in a chicken breast model food that resulted in the highest Salmonella reduction (1.7 log CFU/sample) were 20.5%, 68.9%, and 10.6%, respectively. ADCP treatment did not affect the color and tenderness of the model food, irrespective of its composition. The present study indicated that ADCP is a feasible technology to decontaminate prepackaged ready-to-eat meat cube products.
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Affiliation(s)
- Si Hyeon Roh
- Department of Food Science and Technology, Seoul Women's University, 621 Hwarangro, Nowon-gu, Seoul 01797, Republic of Korea
| | - Seung Young Lee
- Department of Food Science and Technology, Seoul Women's University, 621 Hwarangro, Nowon-gu, Seoul 01797, Republic of Korea
| | - Hyeon Hwa Park
- Department of Food Science and Technology, Seoul Women's University, 621 Hwarangro, Nowon-gu, Seoul 01797, Republic of Korea
| | - Eun Song Lee
- Department of Food Science and Technology, Seoul Women's University, 621 Hwarangro, Nowon-gu, Seoul 01797, Republic of Korea
| | - Sea C Min
- Department of Food Science and Technology, Seoul Women's University, 621 Hwarangro, Nowon-gu, Seoul 01797, Republic of Korea.
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Kim K, Jeong Y, Shin KH, Kim JH, Ahn SD, Kim SS, Suh CO, Kim YB, Choi DH, Park W, Cha J, Chun M, Lee DS, Lee SY, Kim JH, Park HJ. Abstract P3-12-12: Impact of regional nodal irradiation for breast cancer patients with supraclavicular and/or internal mammary lymph node involvement: A multicenter, retrospective study (KROG 16-14). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-12-12] [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
Purpose: To evaluate the treatment outcomes of radiotherapy (RT) for breast cancer with ipsilateral supraclavicular (SCL) and/or internal mammary (IMN) lymph node involvement.
Methods: A total of 353 patients from 11 institutions were included. One hundred and thirty-six patients had SCL involvement, 148 had IMN involvement, and 69 had both. All patients received neoadjvant systemic therapy followed by breast conserving surgery or mastectomy, and postoperative RT to whole breast/chest wall. As for regional lymph node irradiation, SCL RT was given to 344 patients, and IMN RT to 236 patients. The median RT dose was 50.4 Gy.
Results: The median follow-up duration was 61 months (range, 7-173). In-field progression was present in SCL (n=20) and/or IMN (n=7). The 5-year disease-free survival (DFS) and overall survival rates were 57.8% and 75.1%, respectively. On multivariate analysis, both SCL/IMN involvement, number of axillary lymph node ≥4, triple negative subtype, and mastectomy were significant adverse prognosticators for DFS (p = 0.022, 0.001, 0.001, and 0.004, respectively). Regarding the impact of regional nodal irradiation, SCL RT dose ≥54 Gy was not associated with DFS (5-yr rate, 52.9% vs. 50.9%, p = 0.696) in SCL-involved patients, and the receipt of IMN RT was not associated with DFS (5-yr rate, 56.1% vs. 78.1%, p = 0.099) in IMN-involved patients.
Conclusion: Neoadjuvant chemotherapy followed by surgery and postoperative RT achieved an acceptable in-field regional control rate in patients with SCL and/or IMN involvement. However, a higher RT dose to SCL or IMN RT was not associated with the improved DFS in these patients.
Citation Format: Kim K, Jeong Y, Shin KH, Kim JH, Ahn SD, Kim SS, Suh C-O, Kim YB, Choi DH, Park W, Cha J, Chun M, Lee DS, Lee SY, Kim JH, Park HJ. Impact of regional nodal irradiation for breast cancer patients with supraclavicular and/or internal mammary lymph node involvement: A multicenter, retrospective study (KROG 16-14) [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 P3-12-12.
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Affiliation(s)
- K Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - Y Jeong
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - KH Shin
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - JH Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SD Ahn
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SS Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - C-O Suh
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - YB Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - DH Choi
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - W Park
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - J Cha
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - M Chun
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - DS Lee
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SY Lee
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - JH Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - HJ Park
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
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Lee SY, Kang DY, Kim JY, Yoon SH, Choi YH, Lee W, Cho SH, Kang HR. Incidence and Risk Factors of Immediate Hypersensitivity Reactions Associated With Low-Osmolar Iodinated Contrast Media: A Longitudinal Study Based on a Real-Time Monitoring System. J Investig Allergol Clin Immunol 2019; 29:444-450. [PMID: 30676320 DOI: 10.18176/jiaci.0374] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES We investigated the incidence of immediate hypersensitivity reaction (HSR) caused by different types of low-osmolar contrast media (LOCM) and cumulative exposure to LOCM. METHODS This cohort study included all consecutive patients who underwent LOCM-enhanced computed tomography from 2012 through 2014. We assessed 5 LOCM (iobitridol, iohexol, iomeprol, iopamidol, and iopromide). All patients were monitored for adverse events, and new symptoms and signs were recorded in real time using the Contrast Safety Monitoring and Management System (CoSM2oS). RESULTS The overall incidence of immediate HSR to LOCM was 0.97% (2004 events resulting from 205 726 exposures). Incidence differed significantly depending on whether the patient had a previous history of HSR to LOCM (0.80% in patients with no history and 16.99% in patients with a positive history of HSR to LOCM, P=.001). The incidence of HSR to individual LOCM ranged from 0.72% (iohexol) to 1.34% (iomeprol), although there were no significant differences across the 5 LOCM. A longitudinal analysis demonstrated that the incidence of HSR increased gradually with more frequent previous exposure to LOCM (HR=2.006 [95%CI, 1.517-2.653], P<.001). However, this cumulative increase in risk was observed in patients who had experienced HSR to LOCM, but not in those who had not. CONCLUSION The incidence of HSR did not differ significantly across the 5 LOCM assessed in the study. Repeated exposure to LOCM did not increase the risk of HSR among patients who had never experienced HSR to LOCM.
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Affiliation(s)
- S Y Lee
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - D Y Kang
- Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
| | - J Y Kim
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - S H Yoon
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Y H Choi
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - W Lee
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - S H Cho
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
| | - H R Kang
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.,Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
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Critchley LAH, Ho AMH, Ho M, Lee SY. Right Upper Lobe Collapse Secondary to an Anomalous Bronchus after Endotracheal Intubation for Routine Surgery. Anaesth Intensive Care 2019; 35:274-7. [PMID: 17444320 DOI: 10.1177/0310057x0703500219] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Perioperative hypoxaemia is a common but serious problem with well recognised causes. However, an anomalous bronchus causing lobar collapse as a cause is seldom mentioned. A healthy young male patient was anaesthetised for a knee operation. He required reintubation immediately postoperatively for hypoxia. He was found to have right upper lobe collapse. Fibreoptic examination of the trachea demonstrated an anomalous bronchus as the cause. Intra-operatively, the endotracheal tube had been inserted too deeply and the bronchial orifice had been obstructed by the tip. It took several hours for the lung to re-expand. Greater awareness of this potential complication is needed.
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Affiliation(s)
- L A H Critchley
- Department of Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong
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Lee JR, Lin EP, Hofacer RD, Upton B, Lee SY, Ewing L, Joseph B, Loepke AW. Alternative technique or mitigating strategy for sevoflurane-induced neurodegeneration: a randomized controlled dose-escalation study of dexmedetomidine in neonatal rats. Br J Anaesth 2019; 119:492-505. [PMID: 28969315 DOI: 10.1093/bja/aex219] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2017] [Indexed: 12/26/2022] Open
Abstract
Background Brain injury in newborn animals from prolonged anaesthetic exposure has raised concerns for millions of children undergoing anaesthesia every yr. Alternative anaesthetic techniques or mitigating strategies are urgently needed to ameliorate potentially harmful effects. We tested dexmedetomidine, both as a single agent alternative technique and as a mitigating adjuvant for sevoflurane anaesthesia. Methods Neonatal rats were randomized to three injections of dexmedetomidine (5, 25, 50, or 100 µg kg -1 every 2 h), or 6 h of 2.5% sevoflurane as a single agent without or with dexmedetomidine (1, 5, 10, or 20 µg kg -1 every 2 h). Heart rate, oxygen saturation, level of consciousness, and response to pain were assessed. Cell death was quantified in several brain regions. Results Dexmedetomidine provided lower levels of sedation and pain control than sevoflurane. Exposure to either sevoflurane or dexmedetomidine alone did not cause mortality, but the combination of 2.5% sevoflurane and dexmedetomidine in doses exceeding 1 µg kg -1 did. Sevoflurane increased apoptosis in all brain regions; supplementation with dexmedetomidine exacerbated neuronal injury, potentially as a result of ventilatory or haemodynamic compromise. Dexmedetomidine by itself increased apoptosis only in CA2/3 and the ventral posterior nucleus, but not in prefrontal cortex, retrosplenial cortex, somatosensory cortex, subiculum, lateral dorsal thalamic nucleaus, or hippocampal CA1. Conclusions We confirm previous findings of sevoflurane-induced neuronal injury. Dexmedetomidine, even in the highest dose, did not cause similar injury, but provided lesser degrees of anaesthesia and pain control. No mitigation of sevoflurane-induced injury was observed with dexmedetomidine supplementation, suggesting that future studies should focus on anaesthetic-sparing effects of dexmedetomidine, rather than injury-preventing effects.
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Affiliation(s)
- J-R Lee
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul 120-752, Korea
| | - E P Lin
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - R D Hofacer
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Program in Neuroscience, University of Cincinnati, Cincinnati, OH, USA
| | - B Upton
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Medical Scientist Training Program, University of Cincinnati, Cincinnati, OH, USA
| | - S Y Lee
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - L Ewing
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - B Joseph
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - A W Loepke
- Department of Anesthesiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.,Program in Neuroscience, University of Cincinnati, Cincinnati, OH, USA.,Departments of Anesthesiology and Pediatrics, University of Cincinnati, Cincinnati, OH, USA.,Department of Anesthesiology and Critical Care Medicine, Division of Cardiac Anesthesiology, Children's Hospital of Philadelphia and University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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Lim SK, Beom J, Lee SY, Lim JY. Functional Outcomes of Fragility Fracture Integrated Rehabilitation Management in Sarcopenic Patients after Hip Fracture Surgery and Predictors of Independent Ambulation. J Nutr Health Aging 2019; 23:1034-1042. [PMID: 31781735 DOI: 10.1007/s12603-019-1289-4] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES To compare the changes in the functional level of patients with versus without sarcopenia who received by fragility fracture integrated rehabilitation management (FIRM) after hip fracture (HF) surgery over a 6-month follow-up period and to identify variables influencing independent ambulation (IA) at 6 months after HF. DESIGN Prospective observational study. SETTING Three in-hospital rehabilitation setting. PARTICIPANTS Patients older than 65 years of age (N=80) categorized by the presence of sarcopenia. INTERVENTION The FIRM program during the-2 week hospital stay after surgery. MEASUREMENTS Main outcomes for ambulatory function (Koval score, Functional Ambulatory Category) and other secondary outcomes were measured at rehabilitation admission, at discharge, at 3 months and 6 months after surgery. Other secondary outcomes were measured. The possibility of IA at 6 months after surgery were also investigated. RESULTS Sarcopenia and non-sarcopenia patients did not differ significantly in terms of changes in ambulation or other functions over a 6-month follow-up (p < 0.001 or p = 0.001). The two groups did not differ significantly in terms of final functional status (6 months). The IA ratios of the two groups did not significantly differ at 6 months after surgery (sarcopenia [54.3%] and non-sarcopenia [64.5%]). IA before fracture (p = 0.039) and age (≥80 years) (p = 0.03) were independent predictors and sarcopenia was not a predictor for the possibility of IA at 6-months after surgery. CONCLUSIONS The FIRM program was effective for promoting functional recovery in older patients with fragility HF, either with or without sarcopenia. The present findings provide evidence of the pressing need for integrated rehabilitation management in fragility fracture care to improve functional recovery in patients with sarcopenia.
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Affiliation(s)
- S-K Lim
- Jae-Young Lim, MD, PhD. Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Gyeonggi-do, Rep. of Korea 13620, Telephone: 82- 031-787-7732, Fax: 82-031-787-4051, E-mail:
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Kim J, Kim SW, Lee SY, Kim TH, Jung JH. Bone mineral density in osteoporotic patients with pyogenic vertebral osteomyelitis: effect of early versus late treatment for osteoporosis. Osteoporos Int 2018; 29:2761-2770. [PMID: 30225674 DOI: 10.1007/s00198-018-4695-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 10/12/2017] [Accepted: 09/03/2018] [Indexed: 12/19/2022]
Abstract
UNLABELLED Patients with pyogenic vertebral osteomyelitis (PVO) are at greater risk of bone loss. However, treatment guidelines for bone loss have been lacking. Early bisphosphonate treatment within 6 weeks after PVO diagnosis was significantly associated with superior outcome in femoral BMD at 2-year follow-up, compared to that with late treatment. INTRODUCTION Due to absence of concern and proper guidelines, management of bone loss or osteoporosis in PVO is often neglected or delayed. A retrospective cohort study was planned to investigate differences in bone mineral density (BMD) in PVO patients with osteoporosis according to the timing of osteoporosis treatment. METHODS The PVO cohort consisted of 192 patients with osteoporosis who visited our institution between January 2003 and March 2015 and received bisphosphonate treatment for osteoporosis. According to the interval between PVO diagnosis and initiation of bisphosphonate, the patients were divided into three groups: group A (within 6 weeks after PVO diagnosis), group B (between 6 weeks and 3 months after diagnosis), and group C (more than 3 months after PVO diagnosis). RESULTS The percent increase in total femoral BMD in group A was significantly larger than that in group B at 2-year follow-up (p = 0.036). Similarly, the percent increase in trochanteric (p = 0.008) and total femoral (p = 0009) BMD in group A was significantly larger than that in group C at 2-year follow-up. Even after multivariate adjustment, total femoral BMD changes were significantly associated with the treatment group. Group B (odds ratio = 2.824, p = 0.013) and group C (odds ratio = 3.591, p = 0.001) were more significantly associated with total femoral BMD decreases at 2-year follow-up compared with group A. CONCLUSIONS Early bisphosphonate treatment within 6 weeks after PVO diagnosis (group A) was significantly associated with superior outcome in femoral BMD at 2-year follow-up, compared to that with late treatment (groups B and C).
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Affiliation(s)
- J Kim
- Division of Infection, Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - S W Kim
- Spine Center, Department of Orthopedics, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - S Y Lee
- Spine Center, Department of Orthopedics, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - T-H Kim
- Spine Center, Department of Orthopedics, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea.
| | - J-H Jung
- Spine Center, Department of Orthopedics, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
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Tan EK, Goh BKP, Lee SY, Krishnamoorthy TL, Tan CK, Jeyaraj PR. Liver Transplant Waitlist Outcomes and the Allocation of Hepatocellular Carcinoma Model for End-Stage Liver Disease Exception Points at a Low-Volume Center. Transplant Proc 2018; 50:3564-3570. [PMID: 30577239 DOI: 10.1016/j.transproceed.2018.08.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 08/29/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Organ scarcity continues to be the main problem limiting the number of liver transplants performed. Outcomes of patients waitlisted for an organ in an Asian country with low organ donation rate have not been well evaluated. Our current policy of allocating 15 exception points to patients with hepatocellular carcinoma (HCC) to render them competitive for a transplant also requires review. METHODS The waiting list registry and the organ transplant registry of a single institution in Asia were reviewed from December 2005 to June 2016 for all patients who underwent liver transplantation. Patient characteristics and outcomes of waitlist dropouts were evaluated. Statistical analyses were performed using SPSS version 20.0. RESULTS One hundred seventy-three patients were waitlisted for a deceased donor liver-only transplant. The most common etiology of liver disease was hepatitis B, followed by cholestatic diseases. Approximately half of the patients had HCC (45.6%). Priority listing for transplant comprised 15.6% of cases. Median Model for End-Stage Liver Disease (MELD) at listing was 15, and median waiting time to transplant was 17 weeks (interquartile range = 6.5-43.5). Overall, 89 (51.4%) patients underwent liver transplantation and 68 (39.3%) dropped out. For patients with HCC, the most common cause of dropout was progression beyond University of California San Francisco transplant criteria (62.5%). The cumulative incidence of dropout at 3 months among patients with HCC who received exception MELD scores was 11%. This was higher than those listed with physiologic MELD of 14-16 points (7%) but lower than those with 17-19 points (16%). CONCLUSIONS Hepatitis B-related liver disease and HCC comprise the majority of patients listed for liver transplant. Dropout rates are high and this is due to the lack of donor organs. The current policy of allocating 15 exception MELD points to patients with HCC within transplant criteria may underestimate the dropout risk of patients with HCC in our population.
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Affiliation(s)
- E K Tan
- Department of Hepato-pancreato-biliary and Transplant Surgery, Singapore General Hospital, Bukit Merah, Singapore.
| | - B K P Goh
- Department of Hepato-pancreato-biliary and Transplant Surgery, Singapore General Hospital, Bukit Merah, Singapore
| | - S Y Lee
- Department of Hepato-pancreato-biliary and Transplant Surgery, Singapore General Hospital, Bukit Merah, Singapore
| | - T L Krishnamoorthy
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Bukit Merah, Singapore
| | - C K Tan
- Department of Gastroenterology & Hepatology, Singapore General Hospital, Bukit Merah, Singapore
| | - P R Jeyaraj
- Department of Hepato-pancreato-biliary and Transplant Surgery, Singapore General Hospital, Bukit Merah, Singapore
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Hwang KW, Choi JH, Jung SM, Kim YS, Lee SY, Chon MK, Lee SH, Kim JS, Park YH, Kim JH, Chun KJ, Je HG, Lee SK, Choi HO. P1520Defining the blanking period after maze procedure for atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1520] [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 W Hwang
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - J H Choi
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - S M Jung
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - Y S Kim
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - S Y Lee
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - M K Chon
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - S H Lee
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - J S Kim
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - Y H Park
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - J H Kim
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - K J Chun
- Pusan National University Yangsan Hospital, Division of Cardiology, Department of Internal Medicine, Yansan, Korea Republic of
| | - H G Je
- Pusan National University Yangsan Hospital, Department of Cardiovascular and Thoracic Surgery, Yansan, Korea Republic of
| | - S K Lee
- Pusan National University Yangsan Hospital, Department of Cardiovascular and Thoracic Surgery, Yansan, Korea Republic of
| | - H O Choi
- Soonchunhyang University Hospital, Cardiology, Bucheon, Korea Republic of
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Kim YS, Hwang KW, Choi HO, Jung SM, Choi JH, Lee SY, Chun MK, Lee SH, Kim JS, Je HG, Park YH, Kim JH, Lee SK, Chun KJ. P4815Incidence of incomplete surgical left atrial appendage closure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4815] [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)
- Y S Kim
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - K W Hwang
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - H O Choi
- Soonchunhyang University Hospital, Department of internal medicine, Bucheon, Korea Republic of
| | - S M Jung
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - J H Choi
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - S Y Lee
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - M K Chun
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - S H Lee
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - J S Kim
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - H G Je
- Pusan National University, Department of Cardiovascular and Thoracic Surgery, Yangsan, Korea Republic of
| | - Y H Park
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - J H Kim
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
| | - S K Lee
- Pusan National University, Department of Cardiovascular and Thoracic Surgery, Yangsan, Korea Republic of
| | - K J Chun
- Pusan National University Yangsan Hospital, Department of internal medicine, Yangsan-si, Korea Republic of
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Lee SY, Jeon KH, Kim MJ, Kim JB, Jang HJ, Kim JS, Lee HJ, Kim TH, Park JS, Choi YJ, Lee MM, Choi RK. P4660The impact of complication of extracorporeal life support for acute myocardial infarction with refractory cardiogenic shock or cardiac arrest. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4660] [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: 11/14/2022] Open
Affiliation(s)
- S Y Lee
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - K H Jeon
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - M J Kim
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - J B Kim
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - H J Jang
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - J S Kim
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - H J Lee
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - T H Kim
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - J S Park
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - Y J Choi
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - M M Lee
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
| | - R K Choi
- Sejong General Hospital, Department of Cardiology, Bucheon, Korea Republic of
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Kim DH, Park SW, Lee SY, Park JS. P6648Right ventricular septal pacing with narrow QRS less than 125ms is beneficial for preventing pacing induced cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6648] [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: 11/14/2022] Open
Affiliation(s)
- D H Kim
- Sejong General Hospital, Arrhythmia division, Cardiology department, Bucheon, Korea Republic of
| | - S W Park
- Sejong General Hospital, Arrhythmia division, Cardiology department, Bucheon, Korea Republic of
| | - S Y Lee
- Sejong General Hospital, Arrhythmia division, Cardiology department, Bucheon, Korea Republic of
| | - J S Park
- Sejong General Hospital, Arrhythmia division, Cardiology department, Bucheon, Korea Republic of
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Chen H, Au KM, Hsu KE, Lai CK, Myint J, Mak YF, Lee SY, Wong TY, Tsang NC. Multidrug-resistant organism carriage among residents from residential care homes for the elderly in Hong Kong: a prevalence survey with stratified cluster sampling. Hong Kong Med J 2018; 24:350-360. [PMID: 30065121 DOI: 10.12809/hkmj176949] [Citation(s) in RCA: 6] [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: 11/05/2022] Open
Abstract
INTRODUCTION A point prevalence survey was conducted to study the epidemiology of and risk factors associated with multidrug-resistant organism carriage among residents in residential care homes for the elderly (RCHEs). METHODS A total of 20 RCHEs in Hong Kong were selected by stratified single-stage cluster sampling. All consenting residents aged ≥65 years from the selected RCHEs were surveyed by collection of nasal swab, axillary swab, rectal swab or stool on one single day for each home. Specimens were cultured and analysed for methicillin-resistant Staphylococcus aureus (MRSA), multidrug-resistant Acinetobacter (MDRA, defined as concomitant resistant to fluoroquinolones, carbapenems, aminoglycosides, cephalosporins and beta-lactam with or without beta-lactamase inhibitors), vancomycin-resistant Enterococcus (VRE), and carbapenemase-producing Enterobacteriaceae (CPE). One third of the MRSA-positive samples were selected at random for molecular typing; all positive MDRA, VRE and CPE samples were tested for molecular typing. Demographic and health information of residents including medical history, history of hospitalisation, antimicrobial usage, and use of indwelling catheters were collected to determine any associated risk factors. RESULTS Samples of 1028 residents from 20 RCHEs were collected. Prevalence of MRSA was estimated as 30.1% (95% confidence interval [CI]=25.1%-35.6%) and MDRA 0.6% (95% CI=0.1%-4.1%). No residents carried VRE nor CPE. Residents living in privately run RCHEs were associated with MRSA carriage. Non-Chinese residents were associated with MRSA carriage with borderline significance. CONCLUSIONS This survey provided information about multidrug-resistant organism carriage among RCHE residents. This information will enable us to formulate targeted surveillance and control strategies for multidrug-resistant organisms.
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Affiliation(s)
- H Chen
- Infection Control Branch, Centre for Health Protection, Department of Health, Hong Kong
| | - K M Au
- Infection Control Branch, Centre for Health Protection, Department of Health, Hong Kong
| | - K E Hsu
- Infection Control Branch, Centre for Health Protection, Department of Health, Hong Kong
| | - C K Lai
- Department of Pathology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - J Myint
- Department of Rehabilitation, Kowloon Hospital, Homantin, Hong Kong
| | - Y F Mak
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - S Y Lee
- Infection Control Team, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - T Y Wong
- Infection Control Team, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - N C Tsang
- Department of Pathology, Queen Elizabeth Hospital, Jordan, Hong Kong
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