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Yoo M, Kim S, Kim BS, Yoo J, Lee S, Jang HC, Cho BL, Son SJ, Lee JH, Park YS, Roh E, Kim HJ, Lee SG, Kim BJ, Kim MJ, Won CW. Moderate hearing loss is related with social frailty in a community-dwelling older adults: The Korean Frailty and Aging Cohort Study (KFACS). Arch Gerontol Geriatr 2019; 83:126-130. [PMID: 31003135 DOI: 10.1016/j.archger.2019.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 03/07/2019] [Revised: 04/04/2019] [Accepted: 04/07/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVES To determine whether hearing loss is associated with social frailty in older adults. METHODS Cross-sectional analysis of cohort study data. Hearing was measured using of Pure-tone audiometry. Hearing loss was determined based on the average of hearing thresholds at 0.5, 1, and 2 kHz in the ear that had better hearing. Social frailty was defined based on the summation of the following 5 social components (1. Neighborhood meeting attendance 2. Talking to friend(s) sometimes 3.Someone gives you love and affection 4. Living alone 5. Meeting someone every day). Participants who had no correspondence to the components were considered non-social frailty; those with 1-2 components were considered social prefrailty; and those having 3 or more components were considered social frailty. RESULTS The prevalence of non-social frailty, social prefrailty, social frailty was 27.6%, 60.7% and 11.7% respectively. Of the five questions, two components (Neighborhood meeting attendance and Presence of someone who shows love and affection to the participants) were associated with hearing loss (p < 0.001). Compared to non-social frailty, the odds ratio of social frailty for hearing loss was 2.24 (95% CI 1.48-3.38) after adjusting for age, residential area, economic status, smoking, depressive disorder and MMSE, and 2.17 (95% CI 1.43-3.30) after further adjustments with physical frailty. CONCLUSION Hearing loss was associated with social frailty even after controlling confounding factors even including physical frailty.
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Affiliation(s)
- M Yoo
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea
| | - S Kim
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea
| | - B S Kim
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea
| | - J Yoo
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea
| | - S Lee
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea
| | - H C Jang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - B L Cho
- Department of Family Medicine, Center for Health Promotion and Optimal Aging, Seoul National University College of Medicine & Hospital, Seoul, Republic of Korea
| | - S J Son
- Department of Psychiatry, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J H Lee
- Catholic institute of U-healthcare, The Catholic University of Korea, Republic of Korea
| | - Y S Park
- Department of Family Medicine, Hallym University Chuncheon Sacred Heart Hospital, Chuncheon, Republic of Korea
| | - E Roh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University, Seoul, Republic of Korea
| | - H J Kim
- Department of Family Medicine, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - S G Lee
- Department of Physical & Rehabilitation Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - B J Kim
- Department of Psychiatry, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - M J Kim
- East-West Medical Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - C W Won
- Department of Family Medicine, Kyung Hee University Medical Center, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea; Elderly Frailty Research Center, Department of Family Medicine, Kyung Hee University College of Medicine, kyungheedaero 23, dongdaemun-gu, 02447, Seoul, Republic of Korea.
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Kim JE, Roh E, Lee MH, Yu DH, Kim DJ, Lim TG, Jung SK, Peng C, Cho YY, Dickinson S, Alberts D, Bowden GT, Einspahr J, Stratton SP, Curiel-Lewandrowski C, Bode AM, Lee KW, Dong Z. Fyn is a redox sensor involved in solar ultraviolet light-induced signal transduction in skin carcinogenesis. Oncogene 2015; 35:4091-101. [PMID: 26686094 PMCID: PMC4916055 DOI: 10.1038/onc.2015.471] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 03/24/2015] [Revised: 09/15/2015] [Accepted: 11/10/2015] [Indexed: 12/21/2022]
Abstract
Solar ultraviolet (UV) light is a major etiological factor in skin carcinogenesis, with solar UV-stimulated signal transduction inducing pathological changes and skin damage. The primary sensor of solar UV-induced cellular signaling has not been identified. We use an experimental system of solar simulated light (SSL) to mimic solar UV and we demonstrate that Fyn is a primary redox sensor involved in SSL-induced signal transduction. Reactive oxygen species (ROS) generated by SSL exposure directly oxidize Cys488 of Fyn, resulting in increased Fyn kinase activity. Fyn oxidation was increased in mouse skin after SSL exposure, and Fyn knockout (Fyn−/−) mice formed larger and more tumors compared to Fyn wildtype mice when exposed to SSL for an extended period of time. Murine embryonic fibroblasts (MEFs) lacking Fyn as well as cells in which Fyn expression was knocked down were resistant to SSL-induced apoptosis. Furthermore, cells expressing mutant Fyn (C448A) were resistant to SSL-induced apoptosis. These findings suggest that Fyn acts as a regulatory nexus between solar UV, ROS and signal transduction during skin carcinogenesis.
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Affiliation(s)
- J-E Kim
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea
| | - E Roh
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - M H Lee
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,China-US Hormel Cancer Institute, Zhenzhou, Henan, China
| | - D H Yu
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - D J Kim
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - T-G Lim
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea.,Division of Strategic Food Research, Korea Food Research Institute, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - S K Jung
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Division of Strategic Food Research, Korea Food Research Institute, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - C Peng
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - Y-Y Cho
- The Hormel Institute, University of Minnesota, Austin, MN, USA.,College of Pharmacy, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, Republic of Korea
| | - S Dickinson
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - D Alberts
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - G T Bowden
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - J Einspahr
- University of Arizona Cancer Center, Tucson, AZ, USA
| | - S P Stratton
- University of Arizona Cancer Center, Tucson, AZ, USA
| | | | - A M Bode
- The Hormel Institute, University of Minnesota, Austin, MN, USA
| | - K W Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea.,Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Gyeonggi-do, Republic of Korea
| | - Z Dong
- The Hormel Institute, University of Minnesota, Austin, MN, USA
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Chung EY, Kim BH, Lee IJ, Roh E, Oh SJ, Kwak JA, Lee YR, Ahn B, Nam SY, Han SB, Kim Y. The benzoxathiolone LYR-71 down-regulates interferon-gamma-inducible pro-inflammatory genes by uncoupling tyrosine phosphorylation of STAT-1 in macrophages. Br J Pharmacol 2010; 158:1971-81. [PMID: 19922538 DOI: 10.1111/j.1476-5381.2009.00496.x] [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] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND AND PURPOSE Benzoxathiolone derivatives have shown anti-inflammatory and immunomodulatory potential in acne and psoriatic disorders. However, little is known about the molecular basis for these pharmacological effects. In this study, we decided to investigate the anti-inflammatory actions of a benzoxathiolone derivative LYR-71, 6-methyl-2-propylimino-6,7-dihydro-5H-benzo[1,3]oxathiol-4-one, in interferon (IFN)-gamma-activated macrophages. EXPERIMENTAL APPROACH RAW 264.7 macrophages or primary macrophages, derived from bone marrow of C3H/HeJ mice, were stimulated with IFN-gamma in the presence of LYR-71. Nitric oxide (NO) or chemokine production was measured by Griess reaction or enzyme-linked immunosorbent assay. RAW 264.7 cells were used to examine the molecular mechanisms of LYR-71 in modulating IFN-gamma-induced inflammatory responses. KEY RESULTS LYR-71 down-regulated IFN-gamma-induced transcription of inducible NO synthase, IFN-gamma-inducible protein-10 and the monokine induced by IFN-gamma genes in macrophages. This effect was mediated by uncoupling tyrosine phosphorylation of the signal transducer and activator of transcription (STAT)-1 in response to IFN-gamma. LYR-71 directly inhibited the in vitro catalytic activity of Janus kinase (JAK)-2. Further, the inhibitory actions of LYR-71 on IFN-gamma-induced STAT-1 phosphorylation and NO production were consistently abolished in the presence of peroxyvanadate, implying another target dependent on protein tyrosine phosphatase. CONCLUSIONS AND IMPLICATIONS Taken together, LYR-71 could restrain IFN-gamma-induced inflammatory responses through uncoupling the tyrosine phosphorylation of STAT-1, an activation index of JAK-STAT-1 signalling, in macrophages. These results may provide a molecular mechanism underlying anti-inflammatory actions shown by benzoxathiolone derivatives.
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Affiliation(s)
- E-Y Chung
- College of Pharmacy, Chungbuk National University, Cheongju, Korea
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