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Hong JY, Wei Q, Jing GZ, Ye PQ, Shi YY, Shi HJ. [Effect of prenatal stressful life event exposure on child emotional and behavioral problem at age 2-6 years]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:401-407. [PMID: 38514317 DOI: 10.3760/cma.j.cn112338-20230816-00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Objective: To investigate the influence of prenatal stressful life event (SLE) exposure on child emotional and behavioral problem at age 2-6 years and identify the most risk exposure period. Methods: A total of 2 524 mother-child pairs were selected from Shanghai Maternal-Child Pairs Cohort based on pregnant women form 2016 to 2018 in Shanghai. Prenatal SLE exposure was assessed by Life Events Scale for Pregnant Women Questionnaire during the first and third trimester of pregnancy. Child emotional and behavioral problem was evaluated by Strengths and Difficulties Questionnaire at age 2-6 years. Multivariate binary logistic regression model and generalized estimating equation were conducted to quantify the association between prenatal SLE exposure and child emotional and behavioral problem at age 2-6 years, and identify the pregnancy period with strongest adverse effect. Results: The 2 524 mother-child pairs were divided into 4 groups: group with consistent low exposure to SLE (61.8%), group with high exposure to SLE in the first trimester (13.2%), group with high exposure to SLE in the third trimester (13.2%) and group with consistent high exposure to SLE (11.8%). The detection rates of emotional problem, hyperactivity, peer interaction problem and total difficulty score in children aged 3-6 years were highest in the group with consistent high exposure to SLE. Generalized estimating equation analysis showed that after controlling the confounding factors, compared with the consistent low exposure group, the children in the group with high exposure to SLE in the first trimester had significant increased risk for conduct problem at age 2-6 years (aOR=1.41, 95%CI:1.07-1.87). The children in the group with consistent high exposure to SLE were at increased risk for emotional problem, peer interaction problem, and high total difficulty score with the aOR of 1.41 (95%CI: 1.09-1.83), 1.46 (95%CI: 1.15-1.86) and 1.51(95%CI: 1.17-1.93). Conclusion: These findings indicated that prenatal exposure to SLE have adverse effect on child emotional and behavioral problem at age 2-6 years, especially the exposure in the first trimester.
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Affiliation(s)
- J Y Hong
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Q Wei
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - G Z Jing
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - P Q Ye
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Y Y Shi
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - H J Shi
- Department of Maternal, Child and Adolescent Health, School of Public Health, Fudan University, Shanghai 200032, China
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Kim JY, Hong JY, Kim SM, Ryu KH, Kim DS, Lee SH, Na JH, Cho HH, Yu J, Lee J. Socio-economic factors and medical conditions affecting regular stomach cancer screening in Korea: a retrospective longitudinal study using national public health data for 11 years. Public Health 2024; 227:70-77. [PMID: 38128357 DOI: 10.1016/j.puhe.2023.11.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/03/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE This study aimed to explore socio-economic factors and medical conditions that affect regular stomach cancer (SC) screening among Korean adults. STUDY DESIGN This was a retrospective observational study. METHODS Study subjects were 5545 adults aged ≥40 years who participated in the 2007-2012 Korean National Health and Nutrition Examination Survey and were followed up to year 2017 based on data linking to the Korean National Health Insurance Service and Korean Health Insurance Review and Assessment. Socio-economic factors included sex, age, residential area, education, occupation, marital status, disability, public and private health insurance, service through local public health organizations, history of cancer except for SC, and family history of SC. Medical factors included six gastric lesions with the possibility of facilitating SC screening, including benign gastric neoplasm, chronic atrophic gastritis, gastric polyp, Helicobacter pylori infection, intestinal metaplasia, and peptic ulcers. The outcome was adherence to SC screening, which was divided into non-adherence, irregular adherence, and regular adherence. RESULTS After adjusting for the effects of socio-economic factors, multivariate ordinal logistic regression revealed that participants with a history of four types of gastric lesions were more likely to regularly participate in SC screening: chronic atrophic gastritis (odds ratio [OR] 1.567; 95% confidence interval [CI] = 1.276-1.923), gastric polyps (OR 1.565; 95% CI = 1.223-2.003), H. pylori infection (OR 1.637; 95% CI = 1.338-2.003), and peptic ulcer (OR 2.226; 95% CI 1.750-2.831). CONCLUSIONS To improve participation in SC screening, it is necessary to implement personalized strategies for individuals at risk for gastric cancer in addition to population-based strategies for vulnerable groups.
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Affiliation(s)
- J-Y Kim
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea; Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Konyang University, Daejeon, South Korea
| | - J Y Hong
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, South Korea
| | - S M Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea.
| | - K H Ryu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - D S Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - S H Lee
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J H Na
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - H H Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Konyang University College of Medicine, 158, Gwanjeodong-ro, Seo-gu, Daejeon, South Korea
| | - J Yu
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
| | - J Lee
- Medical Data Research group, Konyang University Hospital, Daejeon, South Korea
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Yuan SQ, Wang YC, Lei L, Hong JY, Yi TY, Hong YY. First Report of Pestalotiopsis microspora Causing Leaf Spot on Moyeam in China. Plant Dis 2022; 106:PDIS04210859PDN. [PMID: 34775813 DOI: 10.1094/pdis-04-21-0859-pdn] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- S Q Yuan
- Hunan Provincial Key Laboratory for Biology and Control of Plant Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Y C Wang
- Hunan Provincial Key Laboratory for Biology and Control of Plant Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - L Lei
- Hunan Provincial Key Laboratory for Biology and Control of Plant Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - J Y Hong
- Orient Science and Technology College of Hunan Agricultural University, Changsha 410128, China
| | - T Y Yi
- Hunan Provincial Key Laboratory for Biology and Control of Plant Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Y Y Hong
- Hunan Provincial Key Laboratory for Biology and Control of Plant Pests, College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
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Hong JY, Han HS, Youn JH, Kim HW, Ryu HS, Park KY. Irradiation with 590-nm yellow light-emitting diode light attenuates oxidative stress and modulates UVB induced change of dermal fibroblasts. Exp Dermatol 2022; 31:931-935. [PMID: 35181944 DOI: 10.1111/exd.14542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 11/27/2022]
Abstract
Recently, light-emitting diode (LED)-based devices have emerged as effective and safe tools for the treatment of photoaged skin. However, few studies have been conducted to elucidate the underlying mechanism behind the effect on photoaging of LED light. In this study, we induced photoaging of human dermal fibroblasts (HDFs) with Ultraviolet B (UVB) irradiation and evaluated the ability of 590 nm LED radiation to induce recovery from oxidative stress, restore collagen formation, and regulate inflammatory changes. Photoaging was induced in cultured human dermal fibroblasts (HDFs) using UVB irradiaton of 50 mJ/cm2 . Then, the photoaged HDFs were irradiated with LED using a custom-built 590 nm LED device which emits light with an intensity of 38 mW/cm2 (irradiated for 900 s with 34.2 J/cm2 of total energy). LED irradiation significantly attenuated UVB-induced reactive oxygen species generation and UVB-induced phosphorylation of JNK, c-Fos, and c-Jun. In addition, the procollagen levels were recovered significantly, and MMP-9 levels were significantly suppressed after LED irradiation. The UVB-induced phosphorylation levels of NF-κB and pro-inflammatory enzyme COX-2 also significantly decreased. Our results suggest that 590-nm yellow light irradiation may be an effective and safe anti-oxidative and anti-inflammatory treatment modality for photoaged skin.
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Affiliation(s)
- J Y Hong
- Department of Dermatology, Chungnam National University Sejong Hospital, Sejong, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | | | - H W Kim
- CG Bio Co. Ltd, Seoul, Korea
| | - H S Ryu
- CG Bio Co. Ltd, Seoul, Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Vogelmann A, Schiedel M, Wössner N, Merz A, Herp D, Hammelmann S, Colcerasa A, Komaniecki G, Hong JY, Sum M, Metzger E, Neuwirt E, Zhang L, Einsle O, Groß O, Schüle R, Lin H, Sippl W, Jung M. Development of a NanoBRET assay to validate dual inhibitors of Sirt2-mediated lysine deacetylation and defatty-acylation that block prostate cancer cell migration. RSC Chem Biol 2022; 3:468-485. [PMID: 35441145 PMCID: PMC8985159 DOI: 10.1039/d1cb00244a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/28/2022] [Indexed: 11/21/2022] Open
Abstract
Sirtuin2 (Sirt2) with its NAD+-dependent deacetylase and defatty-acylase activities plays a central role in the regulation of specific cellular functions. Dysregulation of Sirt2 activity has been associated with the pathogenesis of many diseases, thus making Sirt2 a promising target for pharmaceutical intervention. Herein, we present new high affinity Sirt2 selective Sirtuin-Rearranging Ligands (SirReals) that inhibit both Sirt2-dependent deacetylation and defatty-acylation in vitro and in cells. We show that simultaneous inhibition of both Sirt2 activities results in strongly reduced levels of the oncoprotein c-Myc and an inhibition of cancer cell migration. Furthermore, we describe the development of a NanoBRET-based assay for Sirt2, thereby providing a method to study cellular target engagement for Sirt2 in a straightforward and accurately quantifiable manner. Applying this assay, we could confirm cellular Sirt2 binding of our new Sirt2 inhibitors and correlate their anticancer effects with their cellular target engagement. Sirt2 inhibitors that show simultaneous inhibition of Sirt2 deacetylase and defatty-acylase activity block prostate cancer cell migration and their target engagement is shown by a newly developed NanoBRET assay.![]()
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Affiliation(s)
- A Vogelmann
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - M Schiedel
- Department of Chemistry and Pharmacy, Medicinal Chemistry, Friedrich-Alexander-University Erlangen-Nürnberg Nikolaus-Fiebiger-Straße 10 91058 Erlangen Germany
| | - N Wössner
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - A Merz
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - D Herp
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - S Hammelmann
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - A Colcerasa
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
| | - G Komaniecki
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
| | - J Y Hong
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
| | - M Sum
- Department of Urology and Center for Clinical Research, University of Freiburg Medical Center Breisacher Strasse 66 79106 Freiburg Germany
| | - E Metzger
- Department of Urology and Center for Clinical Research, University of Freiburg Medical Center Breisacher Strasse 66 79106 Freiburg Germany
| | - E Neuwirt
- Institute of Neuropathology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg 79106 Freiburg Germany
- CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg Germany
- Faculty of Biology, University of Freiburg 79104 Freiburg Germany
| | - L Zhang
- Institute of Biochemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany
| | - O Einsle
- Institute of Biochemistry, University of Freiburg Albertstraße 21 79104 Freiburg Germany
| | - O Groß
- Institute of Neuropathology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg 79106 Freiburg Germany
- CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg Germany
- Center for Basics in NeuroModulation (NeuroModulBasics), Faculty of Medicine, University of Freiburg 79106 Freiburg Germany
| | - R Schüle
- Department of Urology and Center for Clinical Research, University of Freiburg Medical Center Breisacher Strasse 66 79106 Freiburg Germany
- CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg Germany
| | - H Lin
- Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
- Howard Hughes Medical Institute; Department of Chemistry and Chemical Biology, Cornell University Ithaca NY 14853 USA
| | - W Sippl
- Department of Medicinal Chemistry, Institute of Pharmacy, University of Halle-Wittenberg Kurt-Mothes-Str. 3 06120 Halle Germany
| | - M Jung
- Institute of Pharmaceutical Sciences, University of Freiburg Albertstraße 25 79104 Freiburg Germany
- CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg Germany
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Salazar Fajardo JC, Kim R, Gao C, Hong J, Yang J, Wang D, Yoon B. The Effects of tDCS with NDT on the Improvement of Motor Development in Cerebral Palsy. J Mot Behav 2021; 54:480-489. [PMID: 34913842 DOI: 10.1080/00222895.2021.2016572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 10/19/2022]
Abstract
We investigated the effects of transcranial direct current stimulation (tDCS) over the primary motor cortex (M1) with neurodevelopmental treatment (NDT) on the improvement of motor development and reduction of spasticity in children with cerebral palsy (CP). Twenty-four children with CP were allocated to two groups: the tDCS + NDT group and the only NDT group, done 3 times per week for 5 weeks. The Gross Motor Function Measurement (GMFM-88) and Box and Block Test (BBT) were used to assess changes in motor development, and the Modified Ashworth Scale (MAS) was used to evaluate changes in spasticity. All measurements were carried out at 3 time points: baseline, post-intervention, and 1 month follow-up. We found improvements in the GMFM-88 total scores and in each individual GMFM-88 dimension scores, favoring the tDCS + NDT group over the only NDT group. The BBT scores improved only in the tDCS + NDT group. In addition, the MAS scores reduced in the hemibody with significant motor impairment only in the tDCS + NDT group. The present findings suggest that tDCS combined with NDT can be considered a promising intervention for children with CP, as it can enhance motor development and reduce spasticity in this population.
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Affiliation(s)
- Jhosedyn Carolaym Salazar Fajardo
- Major of Rehabilitation Science, Graduate School, Korea University, Seoul, Korea.,Department of Health Sciences, Graduate School, Korea University, Seoul, Korea
| | - RockHyun Kim
- Major of Rehabilitation Science, Graduate School, Korea University, Seoul, Korea.,Department of Health Sciences, Graduate School, Korea University, Seoul, Korea
| | - Chang Gao
- Department of Health Sciences, Graduate School, Korea University, Seoul, Korea.,BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
| | - JiYeon Hong
- Purme Foundation, NEXON Children's Rehabilitation Hospital, Seoul, Korea
| | - JinKyu Yang
- Purme Foundation, NEXON Children's Rehabilitation Hospital, Seoul, Korea
| | | | - BumChul Yoon
- Major of Rehabilitation Science, Graduate School, Korea University, Seoul, Korea.,Department of Health Sciences, Graduate School, Korea University, Seoul, Korea.,BK21FOUR R&E Center for Learning Health Systems, Korea University, Seoul, Korea
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Hong JY, Kim JH, Jin JE, Shin SH, Park KY. Practical Application of Novel Test Methods to Evaluate the Potency of Botulinum Toxin: A Comparison Analysis among Widely Used Products in Korea. Toxins (Basel) 2021; 13:toxins13120833. [PMID: 34941671 PMCID: PMC8707463 DOI: 10.3390/toxins13120833] [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: 10/15/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/29/2022] Open
Abstract
The safe and effective dosing of botulinum neurotoxins (BoNTs) requires accurate and reliable methods to measure their potency. Several novel methods have been introduced over the past decade; however, only few studies have compared the potency of BoNT products with that of the LD50 and other alternative assays. Therefore, the objective of this study was to comparatively evaluate widely used BoNT products using various test methods. Four types of BoNTs (prabotulinumtoxin A, onabotulinumtoxin A, neubotulinumtoxin A, and letibotulinumtoxin A) were used in this study. The estimated potency was assessed using the LD50 assay, and the total BoNT type A protein levels were measured using the enzyme-linked immunosorbent assay (ELISA). The in vitro efficacy of the BoNTs was determined using fluorescence resonance energy transfer (FRET) and surface plasmon resonance (SPR) assays. The results showed differences in the total amount of BoNT protein and the cleavage activity of SNAP-25 within all types of BoNTs. The SPR study seemed to be useful for evaluating the potency by specifically measuring intact 19S neurotoxin, and these results provide new insights for assessing different BoNT products.
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Affiliation(s)
- Ji-Yeon Hong
- Department of Dermatology, Chungnam National University Sejong Hospital, Sejong 30099, Korea;
| | - Jong-Hee Kim
- NABOTA Research and Development Team, Daewoong Pharmaceuticals, Seoul 06973, Korea; (J.-H.K.); (J.-E.J.)
| | - Jung-Eun Jin
- NABOTA Research and Development Team, Daewoong Pharmaceuticals, Seoul 06973, Korea; (J.-H.K.); (J.-E.J.)
| | - Sun-Hye Shin
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06973, Korea;
| | - Kui-Young Park
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06973, Korea;
- Correspondence: ; Tel.: +82-2-6299-1544; Fax: +82-2-6299-1718
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Chung SJ, Lee TY, Lee YH, Baik K, Jung JH, Yoo HS, Shim CJ, Eom H, Hong JY, Kim DJ, Sohn YH, Lee PH. Phase I Trial of Intra-arterial Administration of Autologous Bone Marrow-Derived Mesenchymal Stem Cells in Patients with Multiple System Atrophy. Stem Cells Int 2021; 2021:9886877. [PMID: 34712335 PMCID: PMC8548132 DOI: 10.1155/2021/9886877] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 10/05/2021] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND This study is aimed at investigating the safety and tolerability of the intra-arterial administration of autologous bone marrow-derived mesenchymal stem cells (BM-MSCs) in patients with multiple system atrophy- (MSA-) cerebellar type (MSA-C). METHODS This was a single-center, open-label phase I clinical trial in patients with MSA-C. A three-stage dose escalation scheme (low-dose, 3.0 × 105 cells/kg; medium-dose, 6.0 × 105 cells/kg; high-dose, 9.0 × 105 cells/kg) was applied to determine the maximum tolerated dose of intra-arterial administration of BM-MSCs based on the no-observed-adverse-effect level derived from the toxicity study. The occurrence of adverse events was evaluated 1 day before and 1, 14, and 28 days after BM-MSC therapy. Additionally, we assessed changes in the Unified MSA Rating Scale (UMSARS) score 3 months after BM-MSC treatment. RESULTS One serious adverse drug reaction (ADR) of leptomeningeal enhancement following the intra-arterial BM-MSC administration occurred in one patient in the low-dose group. The safety review of the Internal Monitoring Committee interpreted this as radiological evidence of the blood-brain barrier permeability for MSCs. No other ADRs were observed in the medium- or high-dose groups. In particular, no ischemic lesions on diffusion-weighted images were observed in any of the study participants. Additionally, the medium- and high-dose groups tended to show a slower increase in UMSARS scores than the low-dose group during the 3-month follow-up. CONCLUSION The present study confirmed that a single intra-arterial administration of autologous BM-MSCs is a safe and promising neuroprotective strategy in patients with MSA-C.
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Affiliation(s)
- Seok Jong Chung
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Neurology, Yongin Severance Hospital, Yonsei University Health System, Yongin 16995, Republic of Korea
| | - Tae Yong Lee
- Bioengineering Institute, CORESTEM Inc., Seoul 04763, Republic of Korea
| | - Yang Hyun Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - KyoungWon Baik
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jin Ho Jung
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan 47392, Republic of Korea
| | - Han Soo Yoo
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Chang Jae Shim
- Bioengineering Institute, CORESTEM Inc., Seoul 04763, Republic of Korea
| | - Hyojin Eom
- Bioengineering Institute, CORESTEM Inc., Seoul 04763, Republic of Korea
| | - Ji-Yeon Hong
- Bioengineering Institute, CORESTEM Inc., Seoul 04763, Republic of Korea
| | - Dong Joon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Young H. Sohn
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Phil Hyu Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
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Abstract
In compromised bone conditions such as osteoporosis, developments of the implant surface are necessary to secure the stability of implants. This study investigated the effect of the surface porous titanium structure (PS) on the osseointegration of implants in osteoporotic bone. Bilateral ovariectomy (OVX) was performed in 4 female beagle dogs to induce osteoporosis for 32 wk. Success of induction was based on the evaluation of bone mineral density by Hounsfield units (HU) in computed tomography images. Posterior teeth in both mandibles were extracted 1 wk after OVX, and a total of 30 implants (15 implants in each group) were placed after 32 wk of osteoporosis induction. The control group implant underwent resorbable blast media (RBM) surface treatment, whereas the test group underwent RBM surface treatment in the coronal two-thirds and a PS added to the apical 3-mm portion. HU values in the mandibular trabecular bone, lumbar, and femoral head significantly decreased 32 wk after OVX, confirming osteoporotic condition after induction. Resonance frequency analysis and removal torque test showed comparable values between the 2 groups at 4 wk after implant placement. The surface topography of the implant after removal showed hard tissue integration at the PS in the test group. Bone-to-implant contact length was greater in the apical portion of the test group, although statistical significance was not found between the groups. Interthread bone area in the apical portion of the test group showed a significant increase compared to the control group (control: 0.059 ± 0.041 mm2, test: 0.121 ± 0.060 mm2, P = 0.028) with the histological feature of bone ingrowth at the PS. The findings of the study demonstrated that the surface PS could improve osteoconductivity in the osteoporotic trabecular bone by bone ingrowth at the pore space, thereby enhancing the osseointegration and stability of the implants.
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Affiliation(s)
- S Y Ko
- Department of Periodontology, College of Dentistry and Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea
| | - J Y Hong
- Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea
| | - W Lee
- Advanced Process and Materials R&D Group, Korea Institute of Industrial Technology, Incheon, Republic of Korea
| | - Y Y Chang
- Department of Dentistry, Inha International Medical Center, Incheon, Republic of Korea
| | - K B Park
- MIR Dental Hospital and MegaGen, Daegu, Republic of Korea
| | - J H Yun
- Department of Periodontology, College of Dentistry and Institute of Oral Bioscience, Jeonbuk National University, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Republic of Korea
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10
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Choi SY, Hong JY, Kim HJ, Lee GY, Cheong SH, Jung HJ, Bang CH, Lee DH, Jue MS, Kim HO, Park EJ, Ko JY, Son SW. Mask-induced dermatoses during the COVID-19 pandemic: a questionnaire-based study in 12 Korean hospitals. Clin Exp Dermatol 2021; 46:1504-1510. [PMID: 34081799 PMCID: PMC8239570 DOI: 10.1111/ced.14776] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND During the coronavirus disease 2019 (COVID-19) pandemic, various adverse skin reactions to long-term mask wearing have been reported. AIM To assess the clinical features of mask-induced dermatoses and to recommend prevention and treatment options. METHODS From April to August 2020, questionnaires including topics such as demographic information, pre-existing skin disorders, reported mask-related symptoms, daily mask-wearing duration and frequency, types of masks used and whether the participant was a healthcare worker, were distributed to patients in 12 hospitals. Dermatologists assessed skin lesions, confirmed diagnosis and recorded treatments. RESULTS Itchiness was the most frequent symptom, mostly affecting the cheeks. The most common skin disease was new-onset contact dermatitis (33.94%), followed by new-onset acne (16.97%) and worsening of pre-existing acne (16.97%). Daily wearing of masks was significantly (P = 0.02) associated with new-onset contact dermatitis. More than half of patients with pre-existing skin problems experienced disease worsening while wearing masks. Longer duration of wearing (> 6 h/day, P = 0.04) and use of cotton masks (P < 0.001) significantly increased acne flare-up. Healthcare workers had a higher incidence of skin disease. Skin lesions were generally mild and well tolerated with topical treatment. The study had some limitations: the effect of seasonal characteristics and other risk factors were not assessed, and the patients were visiting dermatological clinics and had interest in their skin status, thus, there may have been selection bias. CONCLUSION Mask-induced/-triggered dermatoses contribute to increase the dermatological burden during the pandemic.
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Affiliation(s)
- S Y Choi
- Department of Dermatology, Ilsan Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - J Y Hong
- Department of Dermatology, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Sejong, Korea
| | - H J Kim
- Department of Dermatology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - G-Y Lee
- Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S H Cheong
- Department of Dermatology, Konyang University, Daejeon, Korea
| | - H J Jung
- Department of Dermatology, National Medical Center, Seoul, Korea
| | - C H Bang
- Department of Dermatology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - D H Lee
- Department of Dermatology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - M-S Jue
- Department of Dermatology, Veterans Health Service Medical Center, Seoul, Korea
| | - H O Kim
- Department of Dermatology, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea
| | - E J Park
- Department of Dermatology, College of Medicine, Hallym University, Seoul, Korea
| | - J Y Ko
- Department of Dermatology, Hanyang University College of Medicine and Hanyang University Seoul Hospital, Seoul, Korea
| | - S W Son
- Department of Dermatology, Korea University College of Medicine, Seoul, Korea
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11
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Park HS, Kang B, Chon HJ, Im HS, Lee CK, Kim I, Kang MJ, Hwang JE, Bae WK, Cheon J, Park JO, Hong JY, Kang JH, Kim JH, Lim SH, Kim JW, Kim JW, Yoo C, Choi HJ. Liposomal irinotecan plus fluorouracil/leucovorin versus FOLFIRINOX as the second-line chemotherapy for patients with metastatic pancreatic cancer: a multicenter retrospective study of the Korean Cancer Study Group (KCSG). ESMO Open 2021; 6:100049. [PMID: 33578192 PMCID: PMC7878976 DOI: 10.1016/j.esmoop.2021.100049] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/31/2020] [Accepted: 01/03/2021] [Indexed: 12/16/2022] Open
Abstract
Background There is no clear consensus on the recommended second-line treatment for patients with metastatic pancreatic cancer who have disease progression following gemcitabine-based therapy. We retrospectively evaluated the clinical outcomes of liposomal irinotecan (nal-IRI) plus fluorouracil/leucovorin (FL) and FOLFIRINOX (fluorouracil, leucovorin, irinotecan, and oxaliplatin) in patients who had failed on the first-line gemcitabine-based therapy. Patients and methods From January 2015 to August 2019, 378 patients with MPC who had received nal-IRI/FL (n = 104) or FOLFIRINOX (n = 274) as second-line treatment across 11 institutions were included in this retrospective study. Results There were no significant differences in baseline characteristics between groups, except age and first-line regimens. With a median follow-up of 6 months, the median progression-free survival (PFS) was 3.7 months with nal-IRI/FL versus 4.6 months with FOLFIRINOX (P = 0.44). Median overall survival (OS) was 7.7 months with nal-IRI/FL versus 9.7 months with FOLFRINOX (P = 0.13). There was no significant difference in PFS and OS between the two regimens in the univariate and multivariate analyses. The subgroup analysis revealed that younger age (<70 years) was associated with better OS with FOLFIRINOX. In contrast, older age (≥70 years) was associated with better survival outcomes with nal-IRI/FL. Adverse events were manageable with both regimens; however, the incidence of grade 3 or higher neutropenia and peripheral neuropathy was higher in patients treated with FOLFIRINOX than with nal-IRI/FL. Conclusions Second-line nal-IRI/FL and FOLFIRINOX showed similar effectiveness outcomes after progression following first-line gemcitabine-based therapy. Age could be the determining factor for choosing the appropriate second-line therapy. This multicenter retrospective study investigated nal-IRI/FL and FOLFIRINOX outcomes after gemcitabine-based therapy. We found no significant differences in outcome between nal-IRI/FL and FOLFIRINOX treatment. Both regimens were well tolerated; however, neutropenia and peripheral neuropathy were more frequent with FOLFIRINOX. Age (cut-off, 70 years) showed differential efficacy between chemotherapy regimens.
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Affiliation(s)
- H S Park
- Division of Medical Oncology, Department of Internal Medicine, St. Vincent's Hospital, The Catholic University of Korea, Seoul, Korea
| | - B Kang
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - H J Chon
- Medical Oncology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - H-S Im
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - C-K Lee
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea
| | - I Kim
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - M J Kang
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - J E Hwang
- Division of Hematology-Oncology, Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Gwangju, Korea
| | - W K Bae
- Division of Hematology-Oncology, Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Gwangju, Korea
| | - J Cheon
- Department of Hematology and Oncology, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Korea
| | - J O Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - J Y Hong
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - J H Kang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - J H Kim
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S H Lim
- Division of Hematology-Oncology, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - J W Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - J-W Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - C Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| | - H J Choi
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea.
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12
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Park SH, Lim DH, Sohn TS, Lee J, Zang DY, Kim ST, Kang JH, Oh SY, Hwang IG, Ji JH, Shin DB, Yu JI, Kim KM, An JY, Choi MG, Lee JH, Kim S, Hong JY, Park JO, Park YS, Lim HY, Bae JM, Kang WK. A randomized phase III trial comparing adjuvant single-agent S1, S-1 with oxaliplatin, and postoperative chemoradiation with S-1 and oxaliplatin in patients with node-positive gastric cancer after D2 resection: the ARTIST 2 trial ☆. Ann Oncol 2020; 32:368-374. [PMID: 33278599 DOI: 10.1016/j.annonc.2020.11.017] [Citation(s) in RCA: 123] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Adjuvant chemotherapy and chemoradiotherapy are some of the standards of care for gastric cancer (GC). The Adjuvant chemoRadioTherapy In Stomach Tumors (ARTIST) 2 trial compares two adjuvant chemotherapy regimens and chemoradiotherapy in patients with D2-resected, stage II or III, node-positive GC. PATIENTS AND METHODS The ARTIST 2 compared, in a 1:1:1 ratio, three adjuvant regimens: oral S-1 (40-60 mg twice daily 4 weeks on/2 weeks off) for 1 year, S-1 (2 weeks on/1 week off) plus oxaliplatin 130 mg/m2 every 3 weeks (SOX) for 6 months, and SOX plus chemoradiotherapy 45 Gy (SOXRT). Randomization was stratified according to surgery type (total or subtotal gastrectomy), pathologic stage (II or III), and Lauren histologic classification (diffuse or intestinal/mixed). The primary endpoint was disease-free survival (DFS) at 3 years; a reduction of 33% in the hazard ratio (HR) for DFS with SOX or SOXRT, when compared with S-1, was considered clinically meaningful. The trial is registered at clinicaltrials.gov (NCT0176146). RESULTS A total of 546 patients were recruited between February 2013 and January 2018 with 182, 181, and 183 patients in the S-1, SOX, and SOXRT arms, respectively. Median follow-up period was 47 months, with 178 DFS events observed. Estimated 3-year DFS rates were 64.8%, 74.3%, and 72.8% in the S-1, SOX, and SOXRT arms, respectively. HR for DFS in the control arm (S-1) was shorter than that in the SOX and SOXRT arms: S-1 versus SOX, 0.692 (P = 0.042) and S-1 versus SOXRT, 0.724 (P = 0.074). No difference in DFS was found between SOX and SOXRT (HR 0.971; P = 0.879). Adverse events were as anticipated in each arm, and were generally well-tolerated and manageable. CONCLUSIONS In patients with curatively D2-resected, stage II/III, node-positive GC, adjuvant SOX or SOXRT was effective in prolonging DFS, when compared with S-1 monotherapy. The addition of radiotherapy to SOX did not significantly reduce the rate of recurrence after D2 gastrectomy.
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Affiliation(s)
- S H Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - T S Sohn
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Lee
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D Y Zang
- Division of Hematology-Oncology, Department of Internal Medicine, Hallym University Medical Center, Hallym University College of Medicine, Anyang-si, Gyeonggi-do, Korea
| | - S T Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J H Kang
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - S Y Oh
- Department of Hematology-Oncology, Dong-A University, Busan, Korea
| | - I G Hwang
- Department of Internal Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - J H Ji
- Department of Internal Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - D B Shin
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - J I Yu
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K-M Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Y An
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - M G Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J H Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J Y Hong
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J O Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Y S Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H Y Lim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J M Bae
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - W K Kang
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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13
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Kwon TR, Kim JH, Jang YN, Lee SE, Hong JY, Yoo KH, Kim BJ. Comparison of different energy response for lipolysis using a 1,060-nm laser: An animal study of three pigs. Skin Res Technol 2020; 27:5-14. [PMID: 32786153 DOI: 10.1111/srt.12899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/10/2020] [Revised: 03/11/2020] [Accepted: 05/30/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Non-invasive body-sculpting procedures are becoming increasingly popular. The application of 1,060 nm of laser energy transcutaneously to hyperthermically induce the disruption of fat cells in the abdomen is a type of non-invasive procedure. AIMS The purpose of this study was to compare the treatment results from two parameters of the same system, each with different energy output levels, in an in vivo porcine model to determine the most effective application. METHODS Female pigs (n = 3) were used in this study. We examined the effects of the treatment using photography, ultrasonography, gross and microscopic pathology, and histological examination in order to determine the mechanism of action, efficacy, and safety of the procedure. Blood chemistry analysis was performed before each session to check lipid levels and to monitor for any adverse changes in markers that may indicate liver damage. Biopsies were taken and routinely processed with hematoxylin and eosin and Oil Red O stains to examine for tissue damage at baseline and after each treatment. Terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling (TUNEL) assays were performed to check for apoptotic-related DNA damage. RESULTS Ultrasonic imaging of the same area before and after the application of 1,060 nm of laser energy at outputs of 0.9 and 1.4 W/cm2 showed that the density of the fat layer changed immediately after irradiation due to the transient heat transfer in the fat layer. Preclinical evaluation was performed to obtain comparison data on the safety and efficacy of subcutaneous fat reduction after applying the different energy outputs of 0.9 and 1.4 W/cm2 . CONCLUSION Based on our findings, we suggest that long-term histologic changes through the use of these devices suggest a comparative effectiveness of the treatment energy.
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Affiliation(s)
- Tae-Rin Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jong Hwan Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - You Na Jang
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Sung-Eun Lee
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Ji-Yeon Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Kwang Ho Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
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14
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Chung MS, Choi YJ, Kim SO, Lee YS, Hong JY, Lee JH, Baek JH. A Scoring System for Prediction of Cervical Lymph Node Metastasis in Patients with Head and Neck Squamous Cell Carcinoma. AJNR Am J Neuroradiol 2019; 40:1049-1054. [PMID: 31072971 DOI: 10.3174/ajnr.a6066] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/13/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND PURPOSE An accurate and comprehensive assessment of lymph node metastasis in patients with head and neck squamous cell cancer is crucial in daily practice. This study constructed a predictive model with a risk scoring system based on CT characteristics of lymph nodes and tumors for patients with head and neck squamous cell carcinoma to stratify the risk of lymph node metastasis. MATERIALS AND METHODS Data included 476 cervical lymph nodes from 191 patients with head and neck squamous cell carcinoma from a historical cohort. We analyzed preoperative CT images of lymph nodes, including diameter, ratio of long-to-short axis diameter, necrosis, conglomeration, infiltration to adjacent soft tissue, laterality and T-stage of the primary tumor. The reference standard comprised pathologic results. Multivariable logistic regression analysis was performed to develop the risk scoring system. Internal validation was performed with 1000-iteration bootstrapping. RESULTS Shortest axial diameter, ratio of long-to-short axis diameter, necrosis, and T-stage were used to develop a 9-point risk scoring system. The risk of malignancy ranged from 7.3% to 99.8%, which was positively associated with increased scores. Areas under the curve of the risk scoring systems were 0.886 (95% CI, 0.881-0.920) and 0.879 (95% CI, 0.845-0.914) in internal validation. The Hosmer-Lemeshow goodness-of-fit test indicated that the risk scoring system was well-calibrated (P = .160). CONCLUSIONS We developed a comprehensive and simple risk scoring system using CT characteristics in patients with head and neck squamous cell carcinoma to stratify the risk of lymph node metastasis. It could facilitate decision-making in daily practice.
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Affiliation(s)
- M S Chung
- From the Department of Radiology (M.S.C.), Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Y J Choi
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
| | - S O Kim
- Clinical Epidemiology and Biostatistics (S.O.K.)
| | | | - J Y Hong
- Oncology (J.Y.H.), Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Lee
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
| | - J H Baek
- Departments of Radiology and Research Institute of Radiology (Y.J.C., J.H.L., J.H.B.)
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15
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Kwon TR, Han SW, Yeo IK, Kim JH, Kim JM, Hong JY, Lee BC, Lee SE, Moon HS, Kwon HJ, Kim BJ. Biostimulatory effects of polydioxanone, poly-d, l lactic acid, and polycaprolactone fillers in mouse model. J Cosmet Dermatol 2019; 18:1002-1008. [PMID: 30985064 DOI: 10.1111/jocd.12950] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 02/02/2019] [Accepted: 03/11/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Numerous fillers are increasingly used for augmentation of volume loss and relaxation of facial wrinkles. Collagen stimulators are the latest next-generation dermal fillers that can induce neocollagenesis. To investigate biophysical characteristics, safety, and efficacy of newly developed polydioxanone (PDO) filler in comparison with poly-l lactic acid (PLLA) and polycaprolactone (PCL) fillers. METHODS In vitro assay, morphology of particles, and rheological property of fillers were measured. A total of 24 female hairless mice (SKH1-Hrhr ) were randomly divided into three groups and injected with PDO, PLLA, or PCL fillers. Durability of fillers was assessed at 0, 3 days, and 1, 4, 8, 12 weeks after injection using folliscope and PRIMOS. To determine biocompatibility and neocollagenesis, histologic evaluation was performed at 1, 4, 8, and 12 weeks after injection. Efficacy was also evaluated based on skin surface roughness changes using PRIMOS in a hairless mouse photoaging model. RESULTS In the particle morphology test, PDO microspheres had an irregular surface and were spherical and uniformly sized. PDO filler demonstrated similar neocollagenesis and inflammatory response to other collagen stimulators. PDO filler showed better biodegradability than PLLA and PCL fillers. In the hairless mouse photoaging model, there was a statistically significant decrease in skin surface roughness after PDO filler injection. CONCLUSIONS Our data suggest that newly developed collagen stimulating PDO filler might be a safe and effective option for correction of volume loss and rejuvenation of photoaging skin.
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Affiliation(s)
- Tae-Rin Kwon
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Sung Won Han
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - In Kwon Yeo
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Jong Hwan Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Jae Min Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Ji-Yeon Hong
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Byung-Chul Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Sung-Eun Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
| | | | | | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
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16
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Kwon TR, Kim JH, Hong JY, Seok J, Kim JM, Bak DH, Choi MJ, Mun SK, Kim CW, Kim BJ. Irradiation with 310 nm and 340 nm ultraviolet light-emitting-diodes can improve atopic dermatitis-like skin lesions in NC/Nga mice. Photochem Photobiol Sci 2018; 17:1127-1135. [PMID: 30019049 DOI: 10.1039/c8pp00063h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Ultraviolet (UV) light produces an immunomodulatory effect on the skin and is widely used for the treatment of chronic inflammatory skin diseases. UV light emitting diodes (UV-LEDs) are a new and promising source of UV radiation. However, their mechanism of action remains largely unknown. In this study, we tested the safety and effectiveness of UV-LED irradiation for the treatment of atopic dermatitis (AD) in an NC/Nga mouse model. Mice were divided into seven groups of eight mice each. Application of Dermatophagoides farinae (Df) extract ointment for four weeks induced AD-like skin lesions. Subsequently, the mice were exposed to UV-LEDs, narrow band UVB, or UVA irradiation three times per week. We assessed the immunosuppressive effects of 310 nm (50 mJ cm-2) and 340 nm (5 J cm-2) UV-LED irradiation. Histological analyses using hematoxylin-eosin, toluidine blue, and immunohistochemical staining were performed. In addition, the serum levels of IgE, inflammatory cytokines and chemokines were measured using enzyme-linked immunosorbent assays (ELISAs). UV-LED irradiation significantly alleviated AD-like skin symptoms, including edema, erythema, dryness, and itching, by modulating Th1 and Th2 responses, transepidermal water loss (TEWL), and scratching behavior in NC/Nga mice. These results suggest that UV-LEDs can improve the treatment of inflammatory skin diseases.
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Affiliation(s)
- Tae-Rin Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.
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17
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Rha SW, Choi BG, Choi SY, Byun JK, Hong JY, Park JY, Park SH, Choi CU, Park CG, Seo HS. P281Impact of anemia on development of new-onset diabetes mellitus and 5-year major clinical outcomes in the korean population. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S W Rha
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - B G Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - S Y Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J K Byun
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J Y Hong
- Hanil general hospital, Seoul, Korea Republic of
| | - J Y Park
- Eulji General Hospital, Seoul, Korea Republic of
| | - S H Park
- Soonchunhyang University Cheonan Hospital, Cheonan, Korea Republic of
| | - C U Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - C G Park
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - H S Seo
- Korea University Guro Hospital, Seoul, Korea Republic of
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Rha SW, Choi BG, Choi SY, Byun JK, Hong JY, Park JY, Park SH, Choi CU, Park CG, Seo HS. P282Application of machine learning for predicting new-onset diabetes mellitus during 5-year follow-up in non-diabetic patients with cardiovascular risk. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p282] [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)
- S W Rha
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - B G Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - S Y Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J K Byun
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J Y Hong
- Hanil general hospital, Seoul, Korea Republic of
| | - J Y Park
- Eulji General Hospital, Seoul, Korea Republic of
| | - S H Park
- Soonchunhyang University Cheonan Hospital, Cheonan, Korea Republic of
| | - C U Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - C G Park
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - H S Seo
- Korea University Guro Hospital, Seoul, Korea Republic of
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Rha SW, Byun JK, Choi BG, Choi SY, Hong JY, Park JY, Park SH, Choi CU, Park CG, Seo HS. P3623Impact of blood urea nitrogen/creatinine ratio in coronary artery disease patients underwent successful percutaneous coronary intervention with drug eluting stents: 5-year follow-up results. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3623] [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)
- S W Rha
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J K Byun
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - B G Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - S Y Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J Y Hong
- Hanil general hospital, Seoul, Korea Republic of
| | - J Y Park
- Eulji General Hospital, Seoul, Korea Republic of
| | - S H Park
- Soonchunhyang University Cheonan Hospital, Cheonan, Korea Republic of
| | - C U Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - C G Park
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - H S Seo
- Korea University Guro Hospital, Seoul, Korea Republic of
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Rha SW, Mashaly A, Choi BG, Choi SY, Byun JK, Hong JY, Park JY, Park SH, Choi CU, Park CG, Seo HS. P1636Impact of uric acid on 5-year clinical outcomes after below-the-knee endovascular intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S W Rha
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - A Mashaly
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - B G Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - S Y Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J K Byun
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - J Y Hong
- Hanil general hospital, Seoul, Korea Republic of
| | - J Y Park
- Eulji General Hospital, Seoul, Korea Republic of
| | - S H Park
- Soonchunhyang University Cheonan Hospital, Cheonan, Korea Republic of
| | - C U Choi
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - C G Park
- Korea University Guro Hospital, Seoul, Korea Republic of
| | - H S Seo
- Korea University Guro Hospital, Seoul, Korea Republic of
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Park JY, Rha SW, Choi BG, Choi SY, Byun JK, Hong JY, Park SH, Choi CU. P1682Impact of gender difference on five-year clinical outcomes in coronary artery spasm patients using propensity matching analysis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1682] [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)
- J Y Park
- Eulji University, Seoul Eulji Hospital, Seoul, Korea Republic of
| | - S W Rha
- Korea University Guro Hospital, Cardiovascular Center, Seoul, Korea Republic of
| | - B G Choi
- Korea University Guro Hospital, Cardiovascular Center, Seoul, Korea Republic of
| | - S Y Choi
- Korea University Guro Hospital, Cardiovascular Center, Seoul, Korea Republic of
| | - J K Byun
- Korea University Guro Hospital, Cardiovascular Center, Seoul, Korea Republic of
| | - J Y Hong
- Hanil General Hospital, Department of cardiology, Seoul, Korea Republic of
| | - S H Park
- Soonchunhyang University Hospital, cardiology, Cheonan, Korea Republic of
| | - C U Choi
- Korea University Guro Hospital, Cardiovascular Center, Seoul, Korea Republic of
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Lim SH, Hong JY, Lim ST, Hong H, Arnoud J, Zhao W, Yoon DH, Tang T, Cho J, Park S, Ko YH, Kim SJ, Suh C, Lin T, Kim WS. Beyond first-line non-anthracycline-based chemotherapy for extranodal NK/T-cell lymphoma: clinical outcome and current perspectives on salvage therapy for patients after first relapse and progression of disease. Ann Oncol 2018; 28:2199-2205. [PMID: 28911074 DOI: 10.1093/annonc/mdx316] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Current standard treatment, including non-anthracycline-based chemotherapy and optimal combining of radiotherapy, has dramatically improved outcomes of patients with extranodal natural killer/T-cell lymphoma (ENKTL) during the last decade. This study was conducted to investigate the clinical outcome of ENKTL patients with relapsed or progressive disease after initial current standard therapy. Patients and methods We retrospectively reviewed patients diagnosed with ENKTL at six centers in four countries (China, France, Singapore, and South Korea) from 1997 to 2015 and analyzed 179 patients who had relapsed or progressed after initial current standard therapy. Results After a median follow-up of 58.6 months (range 27.9-89.2), the median second progression-free survival (PFS) was 4.1 months [95% confidence interval (CI) 3.04-5.16] and overall survival (OS) was 6.4 months (95% CI 4.36-8.51). Multivariate Cox-regression analysis revealed that elevated lactate dehydrogenase, multiple extranodal sites (≥2), and presence of B symptoms were associated with inferior OS (P < 0.05). OS and PFS were significantly different according to both prognostic index of natural killer lymphoma (PINK) and PINK-E (Epstein-Barr virus) models. Salvage chemotherapy with l-asparaginase (l-Asp)-based regimens showed a significantly better clinical benefit to response rate and PFS, although it did not lead to OS improvement. First use of l-Asp in the salvage setting and l-Asp rechallenge at least 6 months after initial treatment were the best candidates for salvage l-Asp containing chemotherapy. Conclusions Most patients with relapsed or refractory ENKTL had poor prognosis with short survival. Further studies are warranted to determine the optimal treatment of patients with relapsed or refractory ENKTL.
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Affiliation(s)
- S H Lim
- Division of Hematology-Oncology, Department of Internal Medicine, Soon Chun Hyang University, Bucheon Hospital, Bucheon-si.,Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul
| | - J Y Hong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S T Lim
- Division of Medical Oncology, National University Cancer Institute, Singapore
| | - H Hong
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - J Arnoud
- Department of Hematology, CHU, Limoges, France
| | - W Zhao
- State Key Laboratory of Medical Genomics, Department of Hematology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - D H Yoon
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - T Tang
- Division of Medical Oncology, National University Cancer Institute, Singapore
| | - J Cho
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul
| | - S Park
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul
| | - Y H Ko
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S J Kim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul
| | - C Suh
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - T Lin
- State Key Laboratory of Oncology in South China, Department of Medical Oncology, Sun Yat-sen University Cancer Center, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - W S Kim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul
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Abstract
This study investigated the viscoelastic properties of contemporary bulk-fill restoratives in distilled water and artificial saliva using dynamic mechanical analysis. The materials evaluated included a conventional composite (Filtek Z350), two bulk-fill composites (Filtek Bulk-fill and Tetric N Ceram), a bulk-fill giomer (Beautifil-Bulk Restorative), and two novel reinforced glass ionomer cements (Zirconomer [ZR] and Equia Forte [EQ]). The glass ionomer materials were also assessed with and without resin coating (Equia Forte Coat). Test specimens 12 × 2 × 2 mm of the various materials were fabricated using customized stainless-steel molds. After light polymerization/initial set, the specimens were removed from the molds, finished, measured, and conditioned in distilled water or artificial saliva at 37°C for seven days. The materials (n=10) were then subjected to dynamic mechanical testing in flexure mode at 37°C and a frequency of 0.1 to 10 Hz. Storage modulus, loss modulus, and loss tangent data were subjected to normality testing and statistical analysis using one-way analysis of variance/Dunnett's test and t-test at a significance level of p < 0.05. Mean storage modulus ranged from 3.16 ± 0.25 to 8.98 ± 0.44 GPa, while mean loss modulus ranged from 0.24 ± 0.03 to 0.65 ± 0.12 GPa for distilled water and artificial saliva. Values for loss tangent ranged from 45.7 ± 7.33 to 134.2 ± 12.36 (10-3). Significant differences in storage/loss modulus and loss tangent were observed between the various bulk-fill restoratives and two conditioning mediums. Storage modulus was significantly improved when EQ and ZR was not coated with resin.
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Kim YS, Kim MN, Lee KE, Hong JY, Oh MS, Kim SY, Kim KW, Sohn MH. Activated leucocyte cell adhesion molecule (ALCAM/CD166) regulates T cell responses in a murine model of food allergy. Clin Exp Immunol 2018; 192:151-164. [PMID: 29363753 DOI: 10.1111/cei.13104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 01/09/2018] [Indexed: 12/14/2022] Open
Abstract
Food allergy is a major public health problem. Studies have shown that long-term interactions between activated leucocyte cell adhesion molecule (ALCAM/CD166) on the surface of antigen-presenting cells, and CD6, a co-stimulatory molecule, influence immune responses. However, there are currently no studies on the functions of ALCAM in food allergy. Therefore, we aimed to identify the functions of ALCAM in ovalbumin (OVA)-induced food allergy using ALCAM-deficient mice. Wild-type (WT) and ALCAM-deficient (ALCAM-/- ) mice were sensitized intraperitoneally and with orally fed OVA. The mice were killed, and parameters related to food allergy and T helper type 2 (Th2) immune responses were analysed. ALCAM serum levels increased and mRNA expression decreased in OVA-challenged WT mice. Serum immunoglobulin (Ig)E levels, Th2 cytokine mRNA and histological injuries were higher in OVA-challenged WT mice than in control mice, and these were attenuated in ALCAM-/- mice. T cell proliferation of total cells, CD3+ CD4+ T cells and activated T cells in immune tissues were diminished in OVA-challenged ALCAM-/- mice. Proliferation of co-cultured T cells and dendritic cells (DCs) was decreased by the anti-CD6 antibody. In addition, WT mice sensitized by adoptive transfer of OVA-pulsed ALCAM-/- BM-derived DCs showed reduced immune responses. Lastly, serum ALCAM levels were higher in children with food allergy than in control subjects. In this study, serum levels of ALCAM were elevated in food allergy-induced WT mice and children with food allergy. Moreover, immune responses and T cell activation were attenuated in OVA-challenged ALCAM-/- mice. These results indicate that ALCAM regulates food allergy by affecting T cell activation.
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Affiliation(s)
- Y S Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M N Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - K E Lee
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - J Y Hong
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M S Oh
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - K W Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M H Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Sol IS, Kim YH, Park YA, Lee KE, Hong JY, Kim MN, Kim YS, Oh MS, Yoon SH, Kim MJ, Kim KW, Sohn MH, Kim KE. Relationship between sputum clusterin levels and childhood asthma. Clin Exp Allergy 2017; 46:688-95. [PMID: 26661728 DOI: 10.1111/cea.12686] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 04/06/2015] [Revised: 11/27/2015] [Accepted: 12/05/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND Clusterin is a sensitive cellular biosensor of oxidative stress and has been studied as a biomarker for inflammation-associated diseases. Clusterin levels in childhood asthma have not been evaluated. OBJECTIVES (1) To evaluate sputum clusterin levels in children with asthma compared to a control group. (2) To assess the relationships between sputum clusterin levels and airway inflammation, pulmonary function, and bronchial hyperresponsiveness. METHODS This study included 170 children aged 5-18 years with stable asthma (n = 91), asthma exacerbation (n = 29), or no asthma (healthy controls; n = 50). Induced sputum, pulmonary function, and methacholine challenge tests were performed. Stable asthma was classified into two groups according to the severity. Clusterin levels in sputum were measured using an enzyme-linked immunosorbent assay. RESULTS Children with stable asthma had a higher clusterin level than healthy controls [4540 (3872-5651) pg/mL vs. 3857 (1054-4369) pg/mL, P < 0.001]. The clusterin level was also more elevated in eosinophil-dominant sputum than in non-eosinophilic sputum in stable asthma [5094 (4243-6257) pg/mL vs. 4110 (1871-4839) pg/mL, P = 0.0017]. Clusterin levels were associated with asthma severity. Paradoxically, clusterin levels were lower during asthma exacerbation than in stable asthma [1838 (350-4790] pg/mL vs. 4540 (3872-5651) pg/mL, P < 0.001]. Clusterin levels were strongly correlated with the methacholine concentration that caused a 20% decrease in the forced expiratory volume in 1 s (r = -0.617, P < 0.001); there was no significant correlation between clusterin levels and other pulmonary function parameters. CONCLUSIONS AND CLINICAL RELEVANCE Clusterin levels were altered in children with stable asthma and asthma exacerbation because of its antioxidant and anti-inflammatory effects. Clusterin may be a marker that reflects airway inflammation and severity of symptoms, and it can be used in the assessment and management of childhood asthma.
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Affiliation(s)
- I S Sol
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y A Park
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - K E Lee
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - J Y Hong
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M N Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M S Oh
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - S H Yoon
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M J Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - K W Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - M H Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - K E Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Hong JY, Kim CW, Noh H, Lee DH, Kim SE, Lee SJ. The Effect of Animation-Assisted Informed Consent Using Tablet Personal Computer for Contrast-Enhanced Computed-Tomography in Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction Informed consent is essential patient's right even in overcrowded emergency department (ED). We compared the effect of animation-assisted informed consent using tablet PC with the standard informed consent for contrast-enhanced computed-tomography (CT) in ED. Methods We included 150 patients scheduled to undergo contrast-enhanced CT in ED from November 2010 through January 2011. Participants were randomised to either animation-assisted information (AAI) (n=75) or standard verbal information (SVI) group (n=75). AAI was provided by tablet personal computer (PC); and SVI by clinicians. All participants completed 10-point scale questionnaires after the CT scan. The questionnaires included two main categories – understanding and satisfaction of informed consent. Results Participants in the AAI group had a better understanding of purpose (8.95±1.48 vs. 8.32±1.88, p=0.026) and methods (8.93±1.43 vs. 8.37±1.83, p=0.048) of CT scans compared to participants in the SVI group. Every score in satisfaction categories was significantly higher in the AAI group. In the SVI group, relatively low-educated participants had a lower score in understanding when compared with university-educated participants (7.53±2.28 vs. 8.52±1.40, p=0.029). Regardless of education level, understanding score was high in the AAI group (8.73±1.27 vs. 8.57±1.50, p=0.71). Conclusions Participants receiving animation assisted informed consent with tablet PC shows a higher degree of understanding and satisfaction compared with patients receiving standard verbal informed consent. Particularly in patients with lower education, animation-assisted informed consent may be better for understanding of contrast-enhanced CT.
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Affiliation(s)
- JY Hong
- Chung-Ang University College of Medicine, Department of Emergency Medicine, Chung-Ang University Medical Center, Heukseok-dong, Dongjak-gu, Seoul, 156-755, Korea
| | - CW Kim
- Chung-Ang University College of Medicine, Department of Emergency Medicine, Chung-Ang University Medical Center, Heukseok-dong, Dongjak-gu, Seoul, 156-755, Korea
| | | | - DH Lee
- Chung-Ang University College of Medicine, Department of Emergency Medicine, Chung-Ang University Medical Center, Heukseok-dong, Dongjak-gu, Seoul, 156-755, Korea
| | - SE Kim
- Chung-Ang University College of Medicine, Department of Emergency Medicine, Chung-Ang University Medical Center, Heukseok-dong, Dongjak-gu, Seoul, 156-755, Korea
| | - SJ Lee
- Chung-Ang University College of Medicine, Department of Emergency Medicine, Chung-Ang University Medical Center, Heukseok-dong, Dongjak-gu, Seoul, 156-755, Korea
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Abstract
Pneumomediastinum is an uncommon radiographic finding resulting from various causes, such as trauma, infection and unknown causes. The pneumomediastinum due to minor trauma is rarely reported and treatment and diagnostic process is not established. We report on a 20-year-old female patient who initially presented with neck pain and dyspnoea following manual strangulation. Her chest X-ray and computed tomography (CT) of neck imaging showed subcutaneous emphysema and extensive pneumomediastinum, but pneumothorax was not shown. She was transferred to the thoracic surgery and admitted to the general ward. The patient's condition improved and she was discharged on the sixth hospital day. In conclusion, patients with pneumomediastinum following a minor strangulation injury can be observed alone without invasive testing or repeated imaging. CT scans are of great value for safe observation in determined patients and for the further evaluation of pneumomediastinum.
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Affiliation(s)
| | | | | | - JH Hong
- Chung-Ang University Hosiptal, Department of Thoracic and Cardiovascular Surgery, College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, Korea
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Park JH, Hong JY, Ahn HW, Kim SJ. Correlation between periodontal soft tissue and hard tissue surrounding incisors in skeletal Class III patients. Angle Orthod 2017; 88:91-99. [PMID: 29072859 DOI: 10.2319/060117-367.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES To investigate the association between the periodontal soft tissue, alveolar bone and dental parameters surrounding the incisors at baseline in patients with skeletal Class III malocclusion. MATERIALS AND METHODS The study sample comprised 154 teeth from 28 patients with skeletal Class III malocclusion (19 men and 9 women, 21.15 ± 4.02 years). Periodontal soft tissue examination and hard tissue measurements with cone-beam computed tomography (CBCT) were performed. Factor analysis was used to reduce the CBCT variables, and correlation analysis between the hard tissue factors and soft tissue parameters was performed. Differences in hard tissue parameters between thick and thin gingival types were evaluated. RESULTS CBCT measurements were reduced to three hard tissue factors: lingual plate, coronal-buccal plate, and apical-buccal plate. Keratinized gingiva width and thickness were positively correlated with the coronal-buccal plate factor and negatively correlated with the apical-buccal plate factor. In the thin gingival biotype, mandibular incisors were more proclined, and the apical part of the buccal alveolar plate and the coronal part of lingual alveolar plate were thicker than in the thick gingival biotype. CONCLUSIONS In the anterior teeth in cases of skeletal Class III malocclusion, hard tissue structures on the buccal side can be grouped based on coronal and apical factors that are significantly correlated with keratinized gingival width and thickness. Thick and thin gingival biotypes exhibited differences in tooth inclination and alveolar plate thickness with regard to the mandibular incisors.
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Ko EJ, Hong JY, Kwon TR, Choi EJ, Jang YJ, Choi SY, Yoo KH, Kim SY, Kim BJ. Efficacy and safety of non-invasive body tightening with high-intensity focused ultrasound (HIFU). Skin Res Technol 2017; 23:558-562. [PMID: 28543777 DOI: 10.1111/srt.12371] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 04/12/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Noninvasive skin-tightening devices have become increasingly popular in response to increasing demand for improvements in skin laxity and tightening with minimal risk and recovery time. OBJECTIVE We evaluated the efficacy and safety of HIFU for skin tightening in the face and body. METHODS A total of 32 Korean subjects enrolled in this prospective clinical trial. The subjects were treated with HIFU to both cheeks, lower abdomen, and thigh. Skin elasticity was measured before and after treatment using a Cutometer (CT575, Courage and Khazaka® , Cologne, Germany). Three blinded, experienced dermatologists evaluated paired pre- and post-treatment (week 4 and 12) photographs according to the Global Aesthetic Improvement Scale (GAIS). Participants also completed self-assessments using GAIS. Subjects rated their pain on a numeric rating scale (NRS) immediately, 7 days, 4 weeks, and 12 weeks after treatment. RESULTS Skin elasticity measured via a Cutometer was significantly improved 12 weeks after treatment at all treated sites (P<.05). Both IGAIS and SGAIS showed significant improvements 12 weeks after treatment. Immediately after treatment the mean NRS score was 3.00±1.586, but no pain was reported at 4 and 12 weeks post-treatment. No serious adverse effects were observed during the follow-up period. CONCLUSION HIFU safely and effectively improves skin elasticity and clinical contouring of the face and body.
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Affiliation(s)
- E J Ko
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Dermatology, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea
| | - J Y Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - T-R Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - E J Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Y-J Jang
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - S Y Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea.,Department of Dermatology, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, College of Medicine, Catholic Kwandong University, International St. Mary's Hospital, Incheon, Korea
| | | | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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Ko EJ, Jeon JY, Kim W, Hong JY, Yi YG. Referred symptom from myofascial pain syndrome: One of the most important causes of sensory disturbance in breast cancer patients using taxanes. Eur J Cancer Care (Engl) 2016; 26. [PMID: 28004441 DOI: 10.1111/ecc.12615] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 11/05/2016] [Indexed: 02/04/2023]
Abstract
The aim of this retrospective study was to evaluate common causes of upper extremity sensory disturbance in breast cancer patients. Breast cancer patients who received surgery and taxane chemotherapy (CTx) with upper extremity sensory disturbance that began after CTx were included. With comprehensive clinical history, physical examination and electrodiagnostic results, diagnosis for each patient was made. Fifty-two patients were included: 23 (44.2%) were diagnosed with chemotherapy-induced peripheral neuropathy (CIPN), 7 (13.5%) with myofascial pain syndrome (MPS), six (11.5%) with carpal tunnel syndrome (CTS), four (7.7%) with CIPN and MPS, and three (5.8%) with CIPN and CTS. CIPN was more correlated with sensory symptoms at upper and lower extremities, a shorter time from CTx start, and adriamycin and cytoxan (AC) plus paclitaxel, than with AC plus docetaxel and fluorouracil, epirubicin and cyclophosphamide plus taxanes. MPS was correlated with longer duration of CTx and use of hormone therapy. CTS was correlated with wrist trauma history. Patients with CIPN showed similar degrees of pain even after 3 months of treatment, in comparison to the patients with MPS and CTS. When breast cancer patients complain of upper extremity sensory disturbance, various causes, especially referred symptom from MPS, should be considered for effective treatment.
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Affiliation(s)
- E J Ko
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Y Jeon
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - W Kim
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J Y Hong
- Department of Rehabilitation Medicine, Raphael Geriatric Hospital, Suwon, Gyeonggi-do, Korea
| | - Y G Yi
- Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Kim MN, Lee KE, Hong JY, Kim KW, Kim KE, Sohn MH, Park JW. IgE cross-reactivity of peanut with walnut and soybean in children with food allergy. Allergol Immunopathol (Madr) 2016; 44:524-530. [PMID: 27726958 DOI: 10.1016/j.aller.2016.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 04/11/2016] [Accepted: 04/27/2016] [Indexed: 01/09/2023]
Abstract
BACKGROUND Peanut allergies are common and can be life-threating for sensitised individuals. Peanut allergens share significant amino acid homology with those of other legumes and tree nuts, but their cross-reactivity still remains unclear. OBJECTIVE We sought to determine the clinical significance of the cross-reactivity of peanut allergens with those of walnut and soybean. METHODS Pooled sera from eight subjects with both peanut and walnut specific IgE were investigated in an inhibition test. After the sera were incubated with either peanut or walnut protein extracts, the quantity of IgE antibodies against the peanut and walnut was measured using an immunoCAP test. Likewise, pooled sera from 18 subjects with both peanut and soybean specific IgE antibodies were incubated with either peanut or soybean protein extracts and evaluated with a peanut and soybean immunoCAP test. SDS-PAGE and immunoblotting were also performed with peanut, walnut and soybean protein extracts and relevant sera. RESULTS Peanut specific IgE was inhibited up to 20% and 26% by walnut and soybean protein extracts, respectively. In reverse, walnut and soybean specific IgE were inhibited up to 21% and 23% by peanut protein extracts, respectively. In the immunoblot analysis, pooled serum from the subjects with peanut specific IgE antibodies reacted with walnut protein extracts significantly. CONCLUSION Although the clinical significance of the cross-reactivity of peanut specific IgE with walnut and soybean protein extracts has not been established, we believe that individuals who are allergic to peanuts need to be cautious about consuming walnuts and soybeans.
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Affiliation(s)
- M N Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K E Lee
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Hong
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K W Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K-E Kim
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M H Sohn
- Department of Pediatrics, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - J W Park
- Department of Internal Medicine, Severance Hospital, Institute of Allergy, Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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Abstract
Food addiction (FA) is loosely defined as hedonic eating behavior involving the consumption of highly palatable foods (ie, foods high in salt, fat, and sugar) in quantities beyond homeostatic energy requirements. FA shares some common symptomology with other pathological eating disorders, such as binge eating. Current theories suggest that FA shares both behavioral similarities and overlapping neural correlates to other substance addictions. Although preliminary, neuroimaging studies in response to food cues and the consumption of highly palatable food in individuals with FA compared to healthy controls have shown differing activation patterns and connectivity in brain reward circuits including regions such as the striatum, amygdala, orbitofrontal cortex, insula, and nucleus accumbens. Additional effects have been noted in the hypothalamus, a brain area responsible for regulating eating behaviors and peripheral satiety networks. FA is highly impacted by impulsivity and mood. Chronic stress can negatively affect hypothalamic-pituitary-adrenal axis functioning, thus influencing eating behavior and increasing desirability of highly palatable foods. Future work will require clearly defining FA as a distinct diagnosis from other eating disorders.
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Affiliation(s)
- E Kalon
- Palo Alto University, Palo Alto, CA, United States; SRI International, Menlo Park, CA, United States.
| | - J Y Hong
- SRI International, Menlo Park, CA, United States
| | - C Tobin
- Palo Alto University, Palo Alto, CA, United States; National Center for PTSD, VA Palo Alto Health Care System Menlo Park Division, Menlo Park, CA, United States
| | - T Schulte
- Palo Alto University, Palo Alto, CA, United States; SRI International, Menlo Park, CA, United States
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Lee SH, Hong JY, Lee JU, Lee DR. Association Between Exposure to Environmental Tobacco Smoke at the Workplace and Risk for Developing a Colorectal Adenoma: A Cross-Sectional Study. Ann Coloproctol 2016; 32:51-7. [PMID: 27218095 PMCID: PMC4865465 DOI: 10.3393/ac.2016.32.2.51] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 03/14/2016] [Indexed: 02/06/2023] Open
Abstract
Purpose A colorectal adenoma (CRA) is a well-defined precursor to colorectal cancer (CRC). Additionally, smoking is a potent risk factor for developing a CRA, as well as CRC. However, the association between exposure to environmental tobacco smoke (ETS) and the risk for developing a CRA has not yet been fully evaluated in epidemiologic studies. We performed a cross-sectional analysis on the association between exposure to ETS at the workplace and the risk for developing a CRA. Methods The study was conducted on subjects who had undergone a colonoscopy at a health promotion center from January 2012 to December 2012. After descriptive analyses, overall and subgroup analyses by smoking status were performed by using a multivariate logistic regression. Results Among the 1,129 participants, 300 (26.6%) were diagnosed as having CRAs. Exposure to ETS was found to be associated with CRAs in all subjects (fully adjusted odds ratio [OR], 1.95; 95% confidence interval [CI], 1.08–2.44; P = 0.001). In the subgroup analysis, exposure to ETS in former smokers increased the risk for developing a CRA (fully adjusted OR, 4.44; 95% CI, 2.07–9.51; P < 0.001). Conclusion Exposure to occupational ETS at the workplace, independent of the other factors, was associated with increased risk for developing a CRA in all subjects and in former smokers. Further retrospective studies with large sample sizes may be necessary to clarify the causal effect of this relationship.
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Affiliation(s)
- Seung-Hwa Lee
- Health Promotion Center, Seohae Hospital, Seocheon, Korea
| | - Ji-Yeon Hong
- Health Promotion Center, Wonkwang University Sanbon Hospital, Wonkwang University College of Medicine, Gunpo, Korea
| | - Jung-Un Lee
- Health Promotion Center, Wonkwang University Sanbon Hospital, Wonkwang University College of Medicine, Gunpo, Korea
| | - Dong Ryul Lee
- Health Promotion Center, Wonkwang University Sanbon Hospital, Wonkwang University College of Medicine, Gunpo, Korea
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Suh DH, Han KD, Hong JY, Park JH, Bae JH, Moon YW, Kim JG. Body composition is more closely related to the development of knee osteoarthritis in women than men: a cross-sectional study using the Fifth Korea National Health and Nutrition Examination Survey (KNHANES V-1, 2). Osteoarthritis Cartilage 2016; 24:605-11. [PMID: 26518994 DOI: 10.1016/j.joca.2015.10.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 03/07/2015] [Revised: 10/05/2015] [Accepted: 10/21/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the association between knee osteoarthritis (OA) and body composition parameters, and to analyze the correlations of both obesity and lower extremity muscle mass with radiographic knee OA in relation to sex. METHODS This was a cross-sectional study using data on body composition parameters measured using dual energy X-ray absorptiometry in 4246 participants in the Fifth Korea National Health and Nutrition Examination Survey. The relationships between knee OA and body composition parameters were evaluated. The associations between knee OA and the four subgroups corresponding to obesity and muscle mass percentage in both lower extremities were analyzed separately for each sex. RESULTS The lower extremity muscle mass showed a decreasing trend, while fat parameters showed an increasing linear trend (P for trend <0.05) with increasing severity of knee OA in women. The odds ratio of each quarter percentile group (25 percentile) for fat parameters showed an increasing trend, while that of the lower extremity muscle mass showed a decreasing linear trend in relation to knee OA in women (P for trend < 0.05). In women, low percentage of lower extremity muscle mass was more associated with knee OA regardless of obesity (P < 0.05). However, there were no associations between all body composition parameters and knee OA in men. CONCLUSION In women, high fat mass and low lower extremity muscle mass were associated with presence and severity of knee OA. Lower extremity muscle mass was more closely correlated with knee OA than obesity in women.
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Affiliation(s)
- D H Suh
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - K D Han
- Department of Medical Statistics, Catholic University College of Medicine, Seoul, South Korea
| | - J Y Hong
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - J H Park
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea
| | - J H Bae
- Department of Orthopedic Surgery, Korea University College of Medicine, Guro Hospital, Seoul, South Korea
| | - Y W Moon
- Department of Orthopedic Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
| | - J G Kim
- Department of Orthopedic Surgery, Korea University College of Medicine, Ansan Hospital, Gyeounggi-do, South Korea.
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Park JA, Hong JY. Effect of Self-Directed Learning Ability, Ego Resilience, Critical Thinking Disposition on the Competency of Nursing Students's Basic Nursing Skills. ACTA ACUST UNITED AC 2016. [DOI: 10.5392/jkca.2016.16.01.342] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Shim DH, Park YA, Kim MJ, Hong JY, Baek JY, Kim KW, Byun YH, Seong BL, Ryu S, Song MK, Hong KJ, Na W, Song D, Park JH, Sohn MH, Lee JM. Pandemic influenza virus, pH1N1, induces asthmatic symptoms via activation of innate lymphoid cells. Pediatr Allergy Immunol 2015; 26:780-8. [PMID: 26287507 DOI: 10.1111/pai.12462] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/13/2015] [Indexed: 02/03/2023]
Abstract
BACKGROUND The pandemic strain of the influenza A virus (pH1N1) in 2009 caused many complications in patients. In this study, we introduce asthmatic symptoms as a complication of pH1N1 infection in children, not having a relationship with asthma history. The aim of this study was to quantify asthmatic symptoms in pH1N1-infected children and elucidate the underlying mechanisms of airway hyper-responsiveness (AHR) induced in a murine model of pH1N1 infection. METHODS As a retrospective study, pH1N1-infected children who were hospitalized with moderate to severe acute asthmatic symptoms were enrolled and administered a methacholine challenge test (MCT) at 3 months post-discharge. Additionally, the induction of AHR by pH1N1 infection was measured by MCT in wild-type and Rag1(-/-) mice. The effect of the innate immune response on the development of AHR following pH1N1 infection was investigated. RESULTS More than 70% of the pH1N1-infected children without a pre-infection diagnosis of asthma had a negative response on the MCT. None of these children had recurrent wheezing or asthma during the 3 years following pH1N1 infection. The development of AHR in pH1N1-infected mice was associated with an elevation in IL-33 and innate lymphoid cells 2 (ILC2). CONCLUSIONS This study demonstrates that pH1N1 infection directly induces transient asthmatic symptoms in patients regardless of their medical history. pH1N1 infection was shown to stimulate the rapid development of AHR and Th2-type cytokine secretion in mice via the activation of ILC2; it may be activated independently of adaptive immunity.
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Affiliation(s)
- D H Shim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Departments of Food and Animal Biotechnology, School of Agricultural Biotechnology and Center for Agricultural Biomaterials, Seoul National University, Seoul, Republic of Korea
| | - Y A Park
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M J Kim
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Hong
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Baek
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K W Kim
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y-H Byun
- Laboratory of Molecular Medicine, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - B-L Seong
- Laboratory of Molecular Medicine, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - S Ryu
- Departments of Food and Animal Biotechnology, School of Agricultural Biotechnology and Center for Agricultural Biomaterials, Seoul National University, Seoul, Republic of Korea
| | - M K Song
- Laboratory Science Division, International Vaccine Institute, Seoul, Republic of Korea
| | - K-J Hong
- ATgen Co. Ltd., Sungnam, 463-400, Republic of Korea
| | - W Na
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.,University of Science and Technology, Daejeon, Republic of Korea
| | - D Song
- Viral Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.,University of Science and Technology, Daejeon, Republic of Korea
| | - J H Park
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M H Sohn
- Department of Pediatrics and Institute of Allergy, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J M Lee
- Department of Microbiology and Immunology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
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Kim SW, Chung SJ, Oh YS, Yoon JH, Sunwoo MK, Hong JY, Kim JS, Lee PH. Cerebral Microbleeds in Patients with Dementia with Lewy Bodies and Parkinson Disease Dementia. AJNR Am J Neuroradiol 2015; 36:1642-7. [PMID: 26228888 DOI: 10.3174/ajnr.a4337] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Accepted: 02/25/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The burden of amyloid β is greater in patients with dementia with Lewy bodies than in those with Parkinson disease dementia, and an increased amyloid β load is closely related to a higher incidence of cerebral microbleeds. Here, we investigated the prevalence and topography of cerebral microbleeds in patients with dementia with Lewy bodies and those with Parkinson disease dementia to examine whether cerebral microbleeds are more prevalent in patients with dementia with Lewy bodies than in those with Parkinson disease dementia. MATERIALS AND METHODS The study population consisted of 42 patients with dementia with Lewy bodies, 88 patients with Parkinson disease dementia, and 35 controls who underwent brain MR imaging with gradient recalled-echo. Cerebral microbleeds were classified as deep, lobar, or infratentorial. RESULTS The frequency of cerebral microbleeds was significantly greater in patients with dementia with Lewy bodies (45.2%) than in those with Parkinson disease dementia (26.1%) or in healthy controls (17.1%; P = .017). Lobar cerebral microbleeds were observed more frequently in the dementia with Lewy bodies group (40.5%) than in the Parkinson disease dementia (17%; P = .004) or healthy control (8.6%; P = .001) group, whereas the frequencies of deep and infratentorial cerebral microbleeds did not differ among the 3 groups. Logistic regression analyses revealed that, compared with the healthy control group, the dementia with Lewy bodies group was significantly associated with the presence of lobar cerebral microbleeds after adjusting for age, sex, nonlobar cerebral microbleeds, white matter hyperintensities, and other vascular risk factors (odds ratio, 4.39 [95% CI, 1.27-15.25]). However, compared with the healthy control group, the Parkinson disease dementia group was not significantly associated with lobar cerebral microbleeds. CONCLUSIONS This study showed that patients with dementia with Lewy bodies had a greater burden of cerebral microbleeds and exhibited a lobar predominance of cerebral microbleeds than did patients with Parkinson disease dementia.
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Affiliation(s)
- S W Kim
- From the Department of Neurology (S.W.K., S.J.C., P.H.L.), Yonsei University College of Medicine, Seoul, South Korea
| | - S J Chung
- From the Department of Neurology (S.W.K., S.J.C., P.H.L.), Yonsei University College of Medicine, Seoul, South Korea
| | - Y-S Oh
- Department of Neurology (Y.-S.O., J.-S.K.), Catholic University College of Medicine, Seoul, South Korea
| | - J H Yoon
- Department of Neurology (J.H.Y.), Ajou University College of Medicine, Suwon, South Korea
| | - M K Sunwoo
- Department of Neurology (M.K.S.), Bundang Jesaeng General Hospital, Seongnam, South Korea
| | - J Y Hong
- Department of Neurology (J.Y.H.), Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - J-S Kim
- Department of Neurology (Y.-S.O., J.-S.K.), Catholic University College of Medicine, Seoul, South Korea
| | - P H Lee
- From the Department of Neurology (S.W.K., S.J.C., P.H.L.), Yonsei University College of Medicine, Seoul, South Korea Severance Biomedical Science Institute (P.H.L.), Seoul, South Korea.
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Hong JY, Yoon DH, Suh C, Huh J, Do IG, Sohn I, Jo J, Jung SH, Hong ME, Yoon H, Ko YH, Kim SJ, Kim WS. EBV-positive diffuse large B-cell lymphoma in young adults: is this a distinct disease entity? Ann Oncol 2015; 26:548-55. [PMID: 25475080 DOI: 10.1093/annonc/mdu556] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [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: 11/14/2022] Open
Abstract
BACKGROUND Epstein-Barr virus (EBV)-positive diffuse large B-cell lymphoma (DLBCL) of the elderly is defined only in adults older than 50 years. However, EBV-positive DLBCL can affect younger patients. We investigated the prevalence, clinical characteristics and survival outcomes of EBV-positive DLBCL in young adults. PATIENTS AND METHODS We analyzed patients with de novo DLBCL who were registered in the Samsung Medical Center (SMC) retrospective lymphoma cohort and prospective SMC Lymphoma Cohort Study I (ClinicalTrials.gov: NCT00822731). RESULTS A total of 571 cases were included in the analysis. The prevalence of EBV positivity was 6.7% (13/195) and 9.3% (35/376) in the young group (≤50 years) and in the elderly group (>50 years), respectively. EBV status was closely associated with unique unfavorable clinical characteristics [older age, more advanced stage, two or more sites of extranodal involvement, higher International Prognostic Index (IPI), and age-adjusted IPI risk] only in the elderly group. Poor prognostic impact of EBV positivity on overall survival was observed only in the elderly group [hazard ratio (HR) 2.86; 95% confidence interval (CI) 1.83-4.47; P < 0.001], but not in the young group (HR 1.17; 95% CI 0.35-3.89; P = 0.801). CONCLUSION A substantial proportion of EBV-positive DLBCL of the elderly can occur in young adults. EBV positivity of DLBCL in young adults was not associated with unfavorable clinical characteristics or worse outcomes. We suggest that EBV-positive DLBCL should not be confined only in the elderly and 'EBV-positive DLBCL in young adults' needs to be considered as a clinically distinct disease entity. ClinicalTrials.gov: NCT02060435.
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Affiliation(s)
- J Y Hong
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul
| | | | | | - J Huh
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - I-G Do
- Department of Samsung Cancer Research Institute, Samsung Medical Center, Seoul, Korea
| | - I Sohn
- Department of Samsung Cancer Research Institute, Samsung Medical Center, Seoul, Korea
| | - J Jo
- Department of Samsung Cancer Research Institute, Samsung Medical Center, Seoul, Korea
| | - S-H Jung
- Department of Samsung Cancer Research Institute, Samsung Medical Center, Seoul, Korea Department of Biostatistics and Bioinformatics, Duke University, Durham, USA
| | | | | | | | - S J Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - W S Kim
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Hong JY, Kim SY, Chung KS, Kim EY, Jung JY, Park MS, Kim YS, Kim SK, Chang J, Kang YA. Association between vitamin D deficiency and tuberculosis in a Korean population. Int J Tuberc Lung Dis 2014; 18:73-8. [PMID: 24365556 DOI: 10.5588/ijtld.13.0536] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Several in vitro studies have been conducted regarding the immunomodulatory and mycobactericidal roles of vitamin D in tuberculous infection. However, discrepancies exist among epidemiological studies. We compared vitamin D deficiency between patients with tuberculosis (TB) and healthy control subjects and identified risk factors for vitamin D deficiency. METHOD This was an age- and sex-matched case-control analysis of 94 TB cohort and 282 Korean national survey participants. RESULTS The median baseline 25-hydroxyvitamin D (25[OH]D) level in the TB group (9.86 ng/ml, IQR 7.19-14.15) was lower than in controls (16.03 ng/ml, IQR 12.38-20.30, P < 0.001). The prevalence of severe vitamin D deficiency was higher in patients with TB (51.1%) than in controls (8.2%, P = 0.001). The median 25(OH)D level increased from 11.40 ng/ml (IQR 7.85-15.73) to 13.18 ng/ml (IQR 10.60-19.71) after treatment completion (P = 0.037). On multivariate analysis, presence of TB and history of TB were independently associated with severe vitamin D deficiency. CONCLUSION Patients with TB had a higher prevalence of vitamin D deficiency than control subjects in a Korean population. The median 25(OH)D level increased after TB treatment. Further studies are needed to establish a causal relationship.
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Affiliation(s)
- J Y Hong
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S Y Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - K S Chung
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - E Y Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Y Jung
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - M S Park
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y S Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - S K Kim
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J Chang
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y A Kang
- Division of Pulmonology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Hong JY, Hong ME, Choi MK, Kim YS, Chang W, Maeng CH, Park S, Lee SJ, Do IG, Jo JS, Jung SH, Kim SJ, Ko YH, Kim WS. The impact of activated p-AKT expression on clinical outcomes in diffuse large B-cell lymphoma: a clinicopathological study of 262 cases. Ann Oncol 2014; 25:182-8. [PMID: 24356628 DOI: 10.1093/annonc/mdt530] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Oncogenic phosphatidylinositol-3-kinase/serine-threonine kinase (PI3K/AKT) pathway plays a critical role in cell proliferation and growth. Phosphorylated AKT (p-AKT) has been reported to be abnormally overexpressed and to have poor prognostic impact in solid tumors. PATIENTS AND METHODS To define the clinical implications of p-AKT expression in diffuse large B-cell lymphoma (DLBCL), we calculated arbitrary units (AUs) by multiplying the intensity and the proportion of p-AKT expression and investigated the impact of p-AKT expression on clinical outcomes. We assessed 262 patients with DLBCL. Based on a cutoff value of the upper limit of the third quartile of AUs, 56 patients were classified as high p-AKT and the remaining 206 patients were classified as low p-AKT. RESULTS The high p-AKT group was closely associated with more advanced stage (stage III-IV, P = 0.02), two or more extranodal involvement (P = 0.03), lactic dehydrogenase elevation (P = 0.03), higher International Prognostic Index risk groups (high intermediate/high, P = 0.02), and the presence of B-symptoms (P = 0.01). The high p-AKT group showed substantially worse overall survival (OS) (median OS, 115.0 months versus not reached, P = 0.004) and progression-free survival (PFS) (median PFS, 25.5 versus 105.8 months, P = 0.019) compared with the low p-AKT group. Multivariate analysis revealed that high p-AKT expression retained its significant poor prognostic impact for OS (hazard ratio 1.7; 95% confidence interval, 1.0-2.7; P = 0.031). The subgroup with high p-AKT expression and concurrent Epstein-Barr virus positivity showed worst prognosis with the median OS and PFS of 15.2 and 7.4 months. CONCLUSION DLBCL patients with high p-AKT expression showed distinct clinical features and followed a more rapidly deteriorating clinical course with worse OS and PFS. Thus, a more effective treatment option should be developed for this subset of DLBCL patients, and targeting PI3K/AKT pathway may be a promising therapeutic strategy.
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Affiliation(s)
- J Y Hong
- Division of Hematology-Oncology, Department of Medicine and
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Chung SJ, Hong JY, Lee JE, Lee PH, Sohn YH. Dental implants-induced task-specific oromandibular dystonia. Eur J Neurol 2013; 20:e80. [PMID: 23663539 DOI: 10.1111/ene.12124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 01/30/2013] [Indexed: 11/29/2022]
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Park S, Kim IR, Baek KK, Lee SJ, Chang WJ, Maeng CH, Hong JY, Choi MK, Kim YS, Sun JM, Ahn JS, Park K, Jo J, Jung SH, Ahn MJ. Prospective analysis of quality of life in elderly patients treated with adjuvant chemotherapy for non-small-cell lung cancer. Ann Oncol 2013; 24:1630-9. [PMID: 23393122 DOI: 10.1093/annonc/mds649] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Given the more comorbidities with a decline in physiologic reserve, it can be challenging to make appropriate treatment decisions in the elderly. PATIENTS AND METHODS Here, we prospectively evaluated and compared the health-related quality of life (HRQOL) of patients aged ≥ 65 with aged <65 who were treated with a postoperative chemotherapy for completely resected stage Ib, II or IIIa non-small-cell lung cancer (NSCLC). Either four cycles of paclitaxel (Taxol)-carboplatin (PC) or vinorelbine-cisplatin (NP) was used. The HRQOL was assessed with EORTC QLQ-C30 and EORTC QLQ-LC13. RESULTS Between October 2008 and October 2011, a total of 139 patients (aged <65, n = 73; ≥ 65, n = 66) were enrolled, and 127 (91.4%) completed the questionnaire. Overall, the quality of life (QOL) in elderly patients did not significantly deteriorate with adjuvant chemotherapy and the time trend of QOL in elderly patients was similar to that of younger patients. Although the elderly suffered from increased treatment-related adverse events involving sore mouth, peripheral neuropathy and alopecia compared with the baseline, the same time trends were also observed in younger group. The mean dose intensities (MDIs) for PC and NP regimen were not significantly different between the two age groups. CONCLUSIONS Postoperative chemotherapy did not substantially reduce HRQOL in elderly NSCLC patients, and HRQOL during and after adjuvant chemotherapy did not significantly differ by age.
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Affiliation(s)
- S Park
- Division of Hematology-Oncology, Department of Medicine, Research Institute for Future Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Park JH, Hong JY, Jang HC, Oh SG, Kim SH, Yoon JJ, Kim YJ. Use of Gelidium amansii as a promising resource for bioethanol: a practical approach for continuous dilute-acid hydrolysis and fermentation. Bioresour Technol 2012; 108:83-88. [PMID: 22261657 DOI: 10.1016/j.biortech.2011.12.065] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Revised: 12/11/2011] [Accepted: 12/12/2011] [Indexed: 05/27/2023]
Abstract
A facile continuous method for dilute-acid hydrolysis of the representative red seaweed species, Gelidium amansii was developed and its hydrolysate was subsequently evaluated for fermentability. In the hydrolysis step, the hydrolysates obtained from a batch reactor and a continuous reactor were systematically compared based on fermentable sugar yield and inhibitor formation. There are many advantages to the continuous hydrolysis process. For example, the low melting point of the agar component in G. amansii facilitates improved raw material fluidity in the continuous reactor. In addition, the hydrolysate obtained from the continuous process delivered a high sugar and low inhibitor concentration, thereby leading to both high yield and high final ethanol titer in the fermentation process.
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Affiliation(s)
- Jeong-Hoon Park
- Green Process Material Research Group, Korea Institute of Industrial Technology (KITECH), Chungnam 330-825, South Korea
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Abstract
Oxide coating layers were formed on a pure magnesium (Mg) substrate through anodization and micro-arc oxidation (MAO) in order to enhance the biocompatibility and reduce the degradation rate. A thin, smooth MgO coating layer was formed after the anodization. On the other hand, when the Mg was treated using the MAO process, a relatively thick, rough MgO layer was formed. The corrosion properties were investigated using electrochemical and ion release tests in a simulated body fluid. Both the anodization and the MAO treatment enhanced the corrosion resistance of the Mg specimens. However, the MgO layers that formed on the surface were not stable enough to render favorable environments for cell growth. The anodized and MAO-treated specimens were post-treated in a cell-culturing medium in order to improve the stability of the coating layer. The biocompatibility was evaluated using in vitro cell tests, including cell attachment, DNA measurement, and alkaline phosphatase (ALP) activity tests. The DNA levels of the surface-treated Mg were about 6–10 times higher than the bare Mg. The ALP activity levels were also more than double after either the anodization or the MAO followed by the post-treatments. These results demonstrated that the biocompatibility and the corrosion resistance of Mg were significantly improved by the series of surface treatments.
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Affiliation(s)
- Ji-Hoon Jo
- WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Ji-Yeon Hong
- WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Kwang-Seon Shin
- WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Hyoun-Ee Kim
- WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
| | - Young-Hag Koh
- Department of Dental Laboratory Science and Engineering, Korea University, Seoul 136-703, Korea
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Hong JY, Kim GW, Kim CU, Cheon GS, Son SH, Lee JY, Lee YH, Lee JH, Choi BO, Kim YS, Lee SN, Jang HS, Kang YN, Yoon SC. Supine linac treatment versus tomotherapy in craniospinal irradiation: planning comparison and dosimetric evaluation. Radiat Prot Dosimetry 2011; 146:364-366. [PMID: 21515620 DOI: 10.1093/rpd/ncr190] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Craniospinal irradiation (CSI) is the standard treatment of primary intracranial tumour with risk of leptomeningeal dissemination. However, supine setup field-in-field technique does not need inter-fractional junction shift. Recently, the studies of CSI with tomotherapy showed excellent target coverage and tolerable normal organ dose in paediatric patients. The planning comparison and dosimetric difference between conventional radiotherapy and tomotherapy are presented. Three patients with central nervous system germinoma received supine CSI treatment. Normal tissue complication probability calculation was performed for parotid gland, kidney, lens, small bowel, ovary and testis. Homogenous vertebral body coverage for tomotherapy compared with conformal radiotherapy was found. The mean dose to each parotid gland decreased by 7.3 and 10 Gy, respectively, with tomotherapy. The volume of oesophagus and small bowel receiving >10 Gy was significantly lower. The V2, V5, V10 and V20 of the lungs are 81.6, 12.4, 2.3 and 0 % with tomotherapy. Tomotherapy showed excellent homogenous dose distribution through the craniospinal axis (PTV) and higher conformity index.
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Affiliation(s)
- J Y Hong
- Department of Radiation Oncology, Seoul St. Mary's Hospital, The Catholic University of Korea, #505 Banpo-dong, Seocho-gu, Seoul 137-701, Korea
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Jo YY, Hong JY, Choi EK, Kil HK. Ketorolac or fentanyl continuous infusion for post-operative analgesia in children undergoing ureteroneocystostomy. Acta Anaesthesiol Scand 2011; 55:54-9. [PMID: 21083540 DOI: 10.1111/j.1399-6576.2010.02354.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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: 11/27/2022]
Abstract
BACKGROUND children undergoing ureteroneocystostomy suffer from post-operative pain due to the surgical incision and bladder spasm. A single-shot caudal block is a common technique for paediatric analgesia, but a disadvantage is the limitation of a short duration in spite of the additives co-administered. A few clinical trials have shown that ketorolac provides an effective post-operative analgesia and reduces the bladder spasms after ureteral implantation in children. We compared the efficacy of a continuous infusion of ketorolac and fentanyl in post-operative analgesia and bladder spasm in children who underwent ureteroneocystostomy. METHODS fifty-two children were allocated to the ketorolac group (Group K, n=26) and fentanyl group (Group F, n=26). After general anaesthesia, a caudal block was performed with 1.5 ml/kg of 0.15% ropivacaine. At the beginning of surgery, an infusion was started after the bolus injection of ketorolac 0.5 mg/kg or fentanyl 1 microg/kg. An infusion device was programmed to deliver ketorolac 83.3 microg/kg/h or fentanyl 0.17 microg/kg/h for 48 h. RESULTS two of Group F and three of Group K were excluded from the study. Post-operative pain scores were similar between the two groups. One of Group K (4%) and seven of Group F (30.4%) experienced bladder spasms. The rescue analgesic requirements were significantly less in Group K. CONCLUSIONS a Continuous infusion of ketorolac provided effective analgesia after operation in children who underwent ureteroneocystostomy as well as a low dosage of fentanyl. Ketorolac was more effective in reducing the frequency of bladder spasms and rescue analgesic requirements.
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Affiliation(s)
- Y Y Jo
- Department of Anaesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
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Hong JY, Lee KE, Kim KW, Sohn MH, Kim KE. Chitinase induce the release of IL-8 in human airway epithelial cells, via Ca2+-dependent PKC and ERK pathways. Scand J Immunol 2010; 72:15-21. [PMID: 20591071 DOI: 10.1111/j.1365-3083.2010.02404.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chitinases are produced in significant quantities by hosts defending against infections with chitin-containing organisms. However, little is known about the immune response of exogenous chitinase in human epithelial cells. IL-8 has been suggested to have a role in the pathogenesis of the allergenic inflammation of bronchial asthma. We examined whether Streptomyces griseus (S. griseus) chitinase-induced IL-8 on airway epithelium and identified the involvement of intracellular signalling pathways. H292 cells were treated with S. griseus chitinase with different concentrations and times. The IL-8 levels were determined by specific human IL-8 enzyme-linked immunosorbent assay (ELISA) and reverse transcriptase polymerase chain reaction. Using a series of pharmacological inhibitors, we examined the upstream signalling pathway responsible for IL-8 expression in response to S. griseus chitinase. Cells exposed to S. griseus chitinase showed higher level of IL-8 protein production and mRNA expression. Cells stimulated by S. griseus chitinase resulted in the activation of protein kinase C (PKC), extracellular signal-regulated kinase (ERK) and nuclear factor kappa-B (NF-kB) pathways. Inhibitors of Ca(2+)-dependent PKC (Ro-31-8220, calphostin C and Go6976) significantly abolished chitinase-induced expression of IL-8. However, Ca(2+)-independent PKC inhibitor (rottlerin) did not inhibit IL-8 expression. Through ERK inhibitor (U0126) and NF-kB inhibitor (caffeine acid phenethyl ester) treatment, it was proven that ERK and NF-kB regulated chitinase-induced IL-8 expression. We concluded that S. griseus chitinase-induced IL-8 expression was regulated by the activation of Ca(2+/-)-dependent PKC, ERK and NF-kB in human airway epithelial cells.
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Affiliation(s)
- J Y Hong
- Department of Pediatrics and Institute of Allergy, Severance Medical Research Institute, Brain Korea 21 Project for Medical science, Yonsei University College of Medicine, Seoul, Korea
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Lim JJ, Sung SY, Kim HJ, Song SH, Hong JY, Yoon TK, Kim JK, Kim KS, Lee DR. Long-term proliferation and characterization of human spermatogonial stem cells obtained from obstructive and non-obstructive azoospermia under exogenous feeder-free culture conditions. Cell Prolif 2010; 43:405-17. [PMID: 20590666 DOI: 10.1111/j.1365-2184.2010.00691.x] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES The aim of the present study was to improve efficiency of isolation and to optimize proliferative potential of human spermatogonial stem cells (SSCs) obtained from obstructive azoospermic (OA) and non-obstructive azoospermic (NOA) patients, and further, to characterize these cells for potential use in infertility treatment or study of reproductive biology. MATERIALS AND METHODS We have applied a cell-sorting method, using collagen and magnetic activated cell separation to overcome obstacles, developing a collection system, and simple long-term proliferation system, that yields large numbers of high-purity SSCs from obstructive OA and NOA patients. RESULTS SSCs derived from OA and NOA patients proliferated and maintained their characteristics for more than 12 passages (>6 months) in vitro. Moreover, the population of cells positive for the SSC-specific markers GFRalpha-1 and integrin alpha6, increased to more than 80% at passage 8. CONCLUSION These finding may support the idea that in vitro propagation of SSCs could be a useful tool for infertility treatment and study of reproductive biology.
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Affiliation(s)
- J J Lim
- Fertility Center, CHA Gangnam Medical Center, CHA University, Seoul, Korea
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Lian KJ, Hong JY, Lin DS, Ding ZQ, Kang LQ, Lin B, Zhai WL, Chen CQ. Study of development in an experimental animal model of a pediatric physeal slide-traction plate. Eur J Pediatr Surg 2010; 20:257-61. [PMID: 20486039 DOI: 10.1055/s-0030-1253357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND To develop a physeal slide-traction plate for children can provide rigid internal fixation of a bone fracture without inhibiting epiphyseal growth. METHODS The slide-traction plates and standard plates were designed to configure to the femoral condyle. Twelve of thirty goats were used as normal controls and the rest were implanted with plates (right femurs were fixed with standard plates, and left femurs were fixed with slide-traction plates). All goats underwent X-ray examination at 1 month, 3 months and 6 months after surgery, and femoral length were measured. Histological staining and electron microscopy were performed to evaluate the development of the epiphyseal plate at 3 and 6 months after surgery. RESULTS Compared to the standard plate, the slide-traction plate group exhibited more normal physeal growth, histologic features, safranin O staining, and electron microscopy structural features. There were significant differences in length in the femurs of goats fixed with slide-traction plates and standard plates at 1 month, 3 months, and 6 months after surgery, respectively. There was no difference between femurs of the normal control group and the femurs fixed with the slide-traction plates. Thicker epiphyseal plates were found in the left vs. the right femurs of the group fixed with plates at 3 and 6 months after surgery. In the group fixed with plates, Safranin O staining showed that the epiphyseal plates of the left femurs had more fuscous staining than the right femurs at 3 and 6 months after surgery. Electron microscopy also showed that cells in the epiphyseal plates of the left femurs were healthier in appearance than cells from the right femurs in the group fixed with plates. CONCLUSION The physeal slide-traction plate can slide with the growth of the physis and is suitable for fixation of fractures in this region.
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Affiliation(s)
- K J Lian
- Orthopaedic Trauma Center of PLA, Department of Orthopedic, Zhangzhou, China
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Kim SY, Cho JE, Hong JY, Koo BN, Kim JM, Kil HK. Comparison of intrathecal fentanyl and sufentanil in low-dose dilute bupivacaine spinal anaesthesia for transurethral prostatectomy. Br J Anaesth 2009; 103:750-4. [PMID: 19797249 DOI: 10.1093/bja/aep263] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Y Kim
- Department of Anaesthesiology and Pain Medicine, Yonsei University College of Medicine, 250 Seongsan-no, Seodaemun-gu, Seoul 120-752, Republic of Korea
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