285 results on '"Kwon SC"'
Search Results
2. Implementing health promotion activities using community-engaged approaches in Asian American faith-based organizations in New York City and New Jersey
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Kwon, SC, Patel, S, Choy, C, Zanowiak, J, Rideout, C, Yi, S, Wyatt, L, Taher, MD, Garcia-Dia, MJ, Kim, SS, Denholm, TK, Kavathe, R, and Islam, NS
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- 2017
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3. Receptor signaling mechanisms underlying muscarinic agonist-evoked contraction in guinea-pig ileal longitudinal smooth muscle
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Kwon Sc, Irie Y, Kato Y, H. Okamoto, Toshihiro Unno, Seiichi Komori, and Hayato Matsuyama
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Pharmacology ,Agonist ,medicine.medical_specialty ,Carbachol ,medicine.drug_class ,Chemistry ,Muscarinic acetylcholine receptor M3 ,Muscarinic acetylcholine receptor M2 ,Muscarinic agonist ,Partial agonist ,Endocrinology ,Pilocarpine ,Internal medicine ,Muscarinic acetylcholine receptor ,medicine ,medicine.drug - Abstract
In guinea-pig ileal longitudinal muscle, muscarinic partial agonists, 4-(N-[3-chlorophenyl]-carbomoyloxy)-2-butynyl-trimethylammonium (McN-A343) and pilocarpine, each produced parallel increases in tension and cytosolic Ca2+ concentration ([Ca2+]c) with a higher EC50 than that of the full agonist carbachol. The maximum response of [Ca2+]c or tension was not much different among the three agonists. The Ca2+ channel blocker nicardipine markedly inhibited the effects of all three agonists The contractile response to any agonist was antagonized in a competitive manner by M2 receptor selective antagonists (N,N′-bis[6-[[(2-methoyphenyl)methyl]amino]hexyl]-1,8-octanediamine tetrahydrochloride and 11-[[2-[(diethlamino)methyl]-1-piperidinyl]acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4] benzodiazepine-6-one), and the apparent order of M2 antagonist sensitivity was McN-A343>pilocarpine>carbachol. M3 receptor selective antagonists, 1,1-dimethyl-4-diphenylacetoxypiperidinium iodide and darifenacin, both severely depressed the maximum response for McN-A343, while darifenacin had a similar action in the case of pilocarpine. Both M3 antagonists behaved in a competitive manner in the case of the carbachol response. McN-A343 failed to release Ca2+ from the intracellular stores, and the Ca2+-releasing action of pilocarpine was very weak compared with that of carbachol. All three agonists were capable of increasing Ca2+ sensitivity of the contractile proteins. McN-A343 rarely produced membrane depolarization, but always accelerated electrical spike discharge. Pilocarpine effect was more often accompanied by membrane depolarization, as was usually seen using carbachol. The results suggest that muscarinic agonist-evoked contractions result primarily from the integration of Ca2+ entry associated with the increased spike discharge and myofilaments Ca2+ sensitization, and that Ca2+ store release may contribute to the contraction indirectly via potentiation of the electrical membrane responses. They may also support the idea that an interaction of M2 and M3 receptors plays a crucial role in mediating the contraction response. British Journal of Pharmacology (2003) 139, 337–350. doi:10.1038/sj.bjp.0705267
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- 2003
4. A two-surgeon system for endoscopic surgery to minimize the learning curve, perform safe operations, and result in few complications
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Moon, HS, primary, Choi, JK, additional, Han, JW, additional, Hwang, JY, additional, Kim, SK, additional, Kim, CH, additional, Kim, KS, additional, Kim, SG, additional, Kwon, SC, additional, Lee, MS, additional, Moon, SE, additional, Park, KS, additional, and Song, SJ, additional
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- 2002
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5. Strategic Dual Approach for the Management of a Symptomatic Giant Partially Thrombosed Aneurysm at the Basilar Tip - Integrating Intrasaccular Flow Diversion and Endovascular Flow Reversal.
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Kim SY, Lee JM, and Kwon SC
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Managing giant partially thrombosed intracranial aneurysms presents significant challenges due to their unfavorable natural history and the lack of standardized treatment approaches. Conventional treatments, whether open surgical or endovascular, often struggle to manage these aneurysms effectively, resulting in high recurrence rates or significant morbidity. The patient was a 62-year-old male with a symptomatic giant partially thrombosed aneurysm at the tip of the basilar artery, presenting with left-sided hemiparesis and dysarthria. Diagnostic imaging revealed a giant aneurysm with a wide-necked, canalized portion. A two-stage endovascular treatment was conducted, involving a balloon occlusion test (BOT) and intraoperative monitoring (IOM) for maximum patient safety. The treatment utilized stent-assisted Woven EndoBridge (WEB) embolization and serial bilateral vertebral artery trapping. The procedure successfully isolated the aneurysm and postoperative imaging confirmed the absence of recanalization, preserving the intact posterior circulation. The patient showed stable recovery and no neurological deficits during the 12-month follow-up period. This technical note demonstrates the feasibility and efficacy of strategically integrating intrasaccular flow diversion using a WEB device and flow reversal through bilateral vertebral artery trapping for treating giant partially thrombosed aneurysms.
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- 2024
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6. Cancer Screening, Knowledge, and Fatalism among Chinese, Korean, and South Asian Residents of New York City.
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Curro II, Teasdale CA, Wyatt LC, Foster V, Yusuf Y, Sifuentes S, Chebli P, Kranick JA, Kwon SC, Trinh-Shevrin C, and LeCroy MN
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- Adult, Aged, Female, Humans, Male, Middle Aged, Asian, Breast Neoplasms diagnosis, Breast Neoplasms ethnology, China ethnology, Colorectal Neoplasms diagnosis, Colorectal Neoplasms ethnology, Cross-Sectional Studies, Neoplasms diagnosis, Neoplasms ethnology, New York City epidemiology, Republic of Korea ethnology, Asia, Southern ethnology, Early Detection of Cancer statistics & numerical data, Health Knowledge, Attitudes, Practice
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Background: Asian New York City residents have the lowest cancer screening uptake across race and ethnicity. Few studies have examined screening differences across Asian ethnic subgroups in New York City., Methods: Cross-sectional survey data were analyzed using multivariable logistic and multinomial regression analyses. Differences among Chinese, Korean, and South Asian adults in breast, cervical, and colorectal cancer screening uptake; breast and colorectal cancer screening knowledge; and cancer fatalism were examined. Associations between breast and colorectal cancer screening knowledge and their uptake were also assessed along with associations between cancer fatalism and breast, cervical, and colorectal cancer screening uptake., Results: Korean women reported 0.52 times [95% confidence interval (CI), 0.31-0.89] lower odds of Pap test uptake compared with Chinese women; South Asian adults had 0.43 times (95% CI, 0.24-0.79) lower odds of colorectal cancer screening uptake compared with Chinese adults. Korean adults reported 1.80 times (95% CI, 1.26-2.58) higher odds of knowing the correct age to begin having mammograms compared with Chinese adults; South Asian adults had 0.67 times (95% CI, 0.47-0.96) lower odds of knowing the correct age to begin colorectal cancer screening compared with Chinese adults. Korean adults had 0.37 times (95% CI, 0.27-0.53) lower odds of reporting cancer fatalism compared with Chinese adults., Conclusions: Low cancer screening uptake among Asian American adults, low screening knowledge, and high cancer fatalism were found. Cancer screening uptake, knowledge, and fatalism varied by ethnic subgroup., Impact: Findings indicate the need for ethnicity-specific cultural and linguistic tailoring for future cancer screening interventions., (©2024 American Association for Cancer Research.)
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- 2024
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7. Bone Density Screening Rates Among Medicare Beneficiaries: An Analysis with a focus on Asian Americans.
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Gyftopoulos S, Pelzl CE, Da Silva Cardoso M, Xie J, Kwon SC, and Chang CY
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- Humans, Male, Female, Aged, United States, Retrospective Studies, Aged, 80 and over, Bone Density, Absorptiometry, Photon statistics & numerical data, Medicare, Asian statistics & numerical data, Osteoporosis diagnostic imaging, Osteoporosis ethnology, Mass Screening statistics & numerical data
- Abstract
Purpose: To report osteoporosis screening utilization rates among Asian American (AsA) populations in the USA., Methods: We retrospectively assessed the use of dual-energy X-ray absorptiometry (DXA) screening using the Medicare 5% Research Identifiable Files. Using Current Procedural Terminology (CPT) codes indicative of a DXA scan, we identified patients recommended for DXA screening according to the ACR-SPR-SSR Practice Parameters (females ≥ 65 years, males ≥ 70 years). Sociodemographic factors and their association with screening were evaluated using chi-square tests., Results: There were 80,439 eligible AsA beneficiaries, and 12,102 (15.1%) received osteoporosis screening. DXA rate for women was approximately four times greater than the rate for men (19.8% vs. 5.0%; p < 0.001). AsA beneficiaries in zip codes with higher mean household income (MHI) were more likely to have DXA than those in lower MHI areas (17.6% vs. 14.3%, p < 0.001). AsA beneficiaries aged < 80 were more likely to receive DXA (15.5%) than those aged ≥ 80 (14.1%, p < 0.001). There were 2,979,801 eligible non-AsA beneficiaries, and 496,957 (16.7%) received osteoporosis screening during the study period. Non-Hispanic white beneficiaries had the highest overall screening rate (17.5%), followed by North American Native (13.0%), Black (11.8%), and Hispanic (11.1%) beneficiaries. Comparing AsA to non-AsA populations, there were significantly lower DXA rates among AsA beneficiaries when controlling for years of Medicare eligibility, patient age, sex, location, and mean income (p < 0.001)., Conclusion: We found lower than expected DXA screening rates for AsA patients. A better understanding of the barriers and facilitators to AsA osteoporosis screening is needed to improve patient care., (© 2024. The Author(s), under exclusive licence to International Skeletal Society (ISS).)
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- 2024
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8. Chinese American Pain Experience Project (CAPE): Perceptions, Expectations, and Attitudes on Pain Management among Chinese American Postoperative Patients.
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Pan J, Wong J, Liang A, Chong SK, Chen X, Aye M, Rosenberg A, Cuff G, and Kwon SC
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Introduction: Chinese Americans are one of the fastest growing racial and ethnic groups and represent the largest subgroup of the Asian American population in the US and in New York City (NYC) where they number 573,528 in 2021. Despite their numbers, current pain perceptions, expectations, and attitudes of Chinese Americans remains poorly understood, especially as related to postoperative pain., Objective: A better understanding of pain experience among Chinese American patients is needed to inform strategies on improving pain management satisfaction., Methods: A total of 27 Chinese American postoperative patients from a NYC health system were recruited for face-to-face surveys and interviews with a trained bilingual and bicultural Community Health Worker. Questions from the Survey on Disparities in Quality of Healthcare and Kleinman's Explanatory Model of Illness were integrated into the survey and topic guide. Topics of discussion included satisfaction with healthcare and pain management during hospital stay and health beliefs and practices., Results: More than half of participants experienced language challenges that made it difficult to communicate with healthcare staff. In general, high levels of satisfaction with pain management were reported; however, participants reported feeling less comfortable asking healthcare teams questions. Common themes across interviews included: (1) pain was an expected outcome of the procedure and was thus perceived as tolerable; (2) the wish to not be a burden to others; (3) concerns about side effects of pain medications; and (4) a cultural and language mismatch between healthcare teams and patients on words being used to elicit pain and discomfort., Conclusion: Our project findings can inform pain management strategies and tools to serve the Chinese American patient population., (© 2024. W. Montague Cobb-NMA Health Institute.)
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- 2024
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9. Predictors of Colonoscopy Use Among Asian Indians in New York City, 2003 to 2016.
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Nagpal N, McCready TM, Xia Y, Lin K, Glenn M, Ng S, Trinh-Shevrin C, Troxel AB, Kwon SC, and Liang PS
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- Humans, New York City, Middle Aged, Male, Female, Aged, India ethnology, Asian statistics & numerical data, Health Surveys, Age Factors, Colonoscopy statistics & numerical data, Colorectal Neoplasms diagnosis, Colorectal Neoplasms ethnology, Early Detection of Cancer statistics & numerical data
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Background: Asian Americans have the lowest colorectal cancer screening uptake of any racial and ethnic group in the United States. Asian Indians are among the most under-screened Asian American subgroups, but there is limited data for this population. We sought to characterize predictors of colonoscopy use among Asian Indians in New York City., Methods: Using 2003 to 2016 data from the New York City Community Health Survey, we identified all Asian Indian participants aged 50 years or older. We examined the association between sociodemographic and medical factors and up-to-date colonoscopy use (defined as colonoscopy within the last 10 y) using logistic regression over 4 time periods: 2003 to 2008, 2009 to 2012, 2013 to 2014, 2015 to 2016., Results: On multivariable analysis, language, age, income, recent exercise, body mass index, and influenza vaccination were associated with colonoscopy uptake in 1 time period. Compared with participants who preferred English, those who preferred an Indian language were less likely to have been up-to-date in 2013 to 2014 (odds ratio 0.12, 95% CI 0.02-0.66). Individuals older than 65 years were more likely than those aged 50 to 64 years to have received a colonoscopy in 2009 to 2012 (odds ratio 3.91, 95% CI 1.49-10.24), although the risk estimates were also consistently positive in the other 3 time periods., Conclusions: Among Asian Indians living in New York City, several demographic, socioeconomic, and health-related characteristics predict colonoscopy use. These findings highlight the importance of examining determinants of colonoscopy uptake in this understudied population to inform future public health interventions., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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10. The association of shift work and TyG index among male workers in a chemical plant of Korea: a cross-sectional study.
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Baek G, Lee YJ, Kwon SC, Min YS, Yun J, Ahn TJ, and Jang EC
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Background: Disturbance of circadian rhythms caused by shift work has adverse effects on insulin resistance. Many previous studies have confirmed that shift work and insulin resistance are related using homeostasis model assessment-insulin resistance, one of the insulin resistance indicators. However, the triglycerides and glucose index (TyG index) has recently been studied as an insulin resistance indicator. The aim of this study is to investigate the association of shift work and TyG index, one of the indirect indicators of insulin resistance, using results of health checkups in one workplace., Methods: Based on medical examination data collected in February 2019, a total of 3,794 subjects from one chemical plant in Korea were selected for this study. Cut-off value of TyG index for predicting development of diabetes mellitus (DM) was 4.69. A multiple logistic regression analysis was performed after adjusting for age, employment period, obesity, abdominal obesity, smoking, drinking, physical activity, hypertension, stroke, heart disease., Results: As a result of logistic regression analysis, compared to day workers, odds ratio (OR) with a TyG index above cut-off value for predicting development of DM in shift workers was 1.220 after adjusting for age, employment period, obesity, abdominal obesity, smoking, drinking, physical activity, hypertension, stroke, heart disease (Model 1, OR: 1.276; 95% confidence interval [CI]: 1.099-1.482; Model 2, OR: 1.232; 95% CI: 1.055-1.438; Model 3, OR: 1.220, 95% CI: 1.030-1.444)., Conclusions: There was a significant association between shift work and TyG index among male workers in a chemical plant. More research studies on the association between shift work and TyG index are needed in the future., Competing Interests: Competing interests: The authors declare that they have no competing interests., (Copyright © 2024 Korean Society of Occupational & Environmental Medicine.)
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- 2024
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11. Robotic-assisted medial unicompartmental knee arthroplasty restored prearthritic alignment and led to superior functional outcomes compared with conventional techniques.
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Kwon SC, Jung HJ, Lee JH, Hyun JT, Hwang JH, and Kim JI
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Purpose: Robotic-assisted medial unicompartmental knee arthroplasty (UKA) can ensure precise preoperative planning, minimise soft tissue damage and restore native coronal alignment. However, few studies have investigated how these advantages translate into differences in early postoperative outcomes. This study aimed to compare differences in early outcomes between conventional UKA (C-UKA) and robotic-assisted UKA (R-UKA)., Methods: This retrospective study investigated two groups of patients who underwent medial UKA: C-UKA group (n = 35) and R-UKA group (n = 35). We assessed (1) serum indicators (hemoglobin, creatine kinase and C-reactive protein) and pain visual analogue scale (VAS) at postoperative days (PODs) 1, 2, 4 and 6; (2) radiologic parameters including joint line height change and arithmetic and mechanical hip-knee-ankle angle (aHKA and mHKA); (3) patient-reported outcomes including Knee Society Scores, Western Ontario and Mcmaster Universities Arthritis Index (WOMAC) and Forgotten Joint Score-12 (FJS-12) at 1-year follow-up., Results: Despite similar serum indicator results, pain VAS was lower in the R-UKA group than in the C-UKA group at PODs 2 (2.5 ± 1.3 vs. 3.6 ± 1.2, p = 0.02), 4 (2.4 ± 0.9 vs. 3.3 ± 1.0, p = 0.03) and 6 (1.9 ± 1.1 vs. 3.1 ± 1.1, p < 0.01). The joint line height change was significantly lower in the R-UKA group than in the C-UKA group (0.9 mm ± 0.6 mm vs. 2.0 mm ± 1.3 mm, p = 0.02). The equivalence test for preoperative aHKA and postoperative mHKA revealed equivalence in only the R-UKA group (p < 0.01). The R-UKA group showed better WOMAC and FJS-12 compared to C-UKA group at 1-year follow-up., Conclusion: R-UKA led to lower pain VAS in the early postoperative period compared with C-UKA. Additionally, R-UKA effectively restored the joint line and prearthritic lower limb alignment, resulting in superior functional outcomes at 1-year follow-up compared with C-UKA., Level of Evidence: Level III., (© 2024 European Society of Sports Traumatology, Knee Surgery and Arthroscopy.)
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- 2024
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12. Correction: Identifying opportunities for collective action around community nutrition programming through participatory systems science.
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Chebli P, Đoàn LN, Thompson RL, Chin M, Sabounchi N, Foster V, Huang TTK, Trinh-Shevrin C, Kwon SC, and Yi SS
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- 2024
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13. Looking Across and Within: Immigration as a Unifying Structural Factor Impacting Cardiometabolic Health and Diet.
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LeCroy MN, Suss R, Russo RG, Sifuentes S, Beasley JM, Barajas-Gonzalez RG, Chebli P, Foster V, Kwon SC, Trinh-Shevrin C, and Yi SS
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- Humans, Diet ethnology, United States epidemiology, Emigration and Immigration, Acculturation, Health Status Disparities, Cardiovascular Diseases ethnology, Cardiovascular Diseases prevention & control, Emigrants and Immigrants statistics & numerical data, Social Determinants of Health ethnology
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Introduction: Immigration has been identified as an important social determinant of health (SDH), embodying structures and policies that reinforce positions of poverty, stress, and limited social and economic mobility. In the public health literature with regard to diet, immigration is often characterized as an individual-level process (dietary acculturation) and is largely examined in one racial/ethnic subgroup at a time. For this narrative review, we aim to broaden the research discussion by describing SDH common to the immigrant experience and that may serve as barriers to healthy diets., Methods: A narrative review of peer-reviewed quantitative, qualitative, and mixed methods studies on cardiometabolic health disparities, diet, and immigration was conducted., Results: Cardiometabolic disease disparities were frequently described by racial/ethnic subgroups instead of country of origin. While cardiovascular disease and obesity risk differed by country of origin, diabetes prevalence was typically higher for immigrant groups vs United States (US)-born individuals. Common barriers to achieving a healthy diet were food insecurity; lack of familiarity with US food procurement practices, food preparation methods, and dietary guidelines; lack of familiarity and distrust of US food processing and storage methods; alternative priorities for food purchasing (eg, freshness, cultural relevance); logistical obstacles (eg, transportation); stress; and ethnic identity maintenance., Conclusions: To improve the health of immigrant populations, understanding similarities in cardiometabolic health disparities, diet, and barriers to health across immigrant communities-traversing racial/ethnic subgroups-may serve as a useful framework. This framework can guide research, policy, and public health practices to be more cohesive, generalizable, and meaningfully inclusive., Competing Interests: Conflict of Interest: No conflicts of interest reported by authors.
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- 2024
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14. Functional alignment maximises advantages of robotic arm-assisted total knee arthroplasty with better patient-reported outcomes compared to mechanical alignment.
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Lee JH, Kwon SC, Hwang JH, Lee JK, and Kim JI
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- Humans, Retrospective Studies, Knee Joint surgery, Patient Reported Outcome Measures, Arthroplasty, Replacement, Knee adverse effects, Robotic Surgical Procedures, Knee Prosthesis, Osteoarthritis, Knee
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Purpose: Robotic arm-assisted total knee arthroplasty (RTKA) enables adjustment of implant position to achieve the surgeon's preferred alignment. However, the alignment concept that most effectively enhances patient satisfaction remains unclear. This study compares the clinical outcomes of patients who underwent functionally aligned RTKA (FA-RTKA), mechanically aligned conventional TKA (MA-CTKA) and mechanically aligned RTKA (MA-RTKA)., Methods: A prospectively collected database was retrospectively reviewed for patients who underwent primary TKA for knee osteoarthritis. One hundred and forty-seven knees were performed with MA-CTKA, followed by 72 consecutive knees performed with MA-RTKA, and subsequently, 70 consecutive knees performed with FA-RTKA were enrolled. After 1:1 propensity score matching of patient demographics, 70 knees were finally included in each group. The extent of additional soft tissue release during surgery was identified, and the Coronal Plane Alignment of the Knee classification was utilised to categorise the alignment. At the 1-year follow-up, patient-reported outcomes, including the pain Visual Analogue Scale, Knee Society Score, Western Ontario and McMaster Universities Arthritis Index and Forgotten Joint Score-12, were also compared among the groups., Results: The FA-RTKA group showed significantly less additional soft tissue release than the MA-CTKA and MA-RTKA groups (15.7%, 38.6% and 35.7%, respectively; p = 0.006). Statistically significant differences in functional scores were observed in the postoperative 1-year clinical outcomes in favour of the FA-RTKA group, which had a significantly larger percentage of knees that maintained constitutional alignment and joint line obliquity than those of the other groups., Conclusions: Functionally aligned TKA showed superior 1-year postoperative patient-reported outcomes compared with those of conventional and robotic arm-assisted mechanically aligned TKA. Therefore, the advantage of RTKA is maximised when the implant positioning is based on functional alignment. The application of RTKA with mechanical alignment has been proven ineffective in improving the clinical outcomes of patients., Level of Evidence: Level III., (© 2024 European Society of Sports Traumatology, Knee Surgery and Arthroscopy.)
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- 2024
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15. Up-to-Date Colonoscopy Use in Asian and Hispanic Subgroups in New York City, 2003-2016.
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Liang PS, Dubner R, Xia Y, Glenn M, Lin K, Nagpal N, Ng S, Trinh-Shevrin C, Troxel AB, and Kwon SC
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- Humans, Caribbean People statistics & numerical data, New York City epidemiology, North American People statistics & numerical data, United States epidemiology, Early Detection of Cancer methods, Early Detection of Cancer statistics & numerical data, Early Detection of Cancer trends, White, Healthcare Disparities ethnology, Healthcare Disparities statistics & numerical data, Colonoscopy statistics & numerical data, Colonoscopy trends, Hispanic or Latino ethnology, Hispanic or Latino statistics & numerical data, Asian statistics & numerical data, Colorectal Neoplasms diagnosis, Colorectal Neoplasms epidemiology, Colorectal Neoplasms ethnology, Population Groups, US ethnology, Population Groups, US statistics & numerical data
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Background: Colorectal cancer screening uptake in the United States overall has increased, but racial/ethnic disparities persist and data on colonoscopy uptake by racial/ethnic subgroups are lacking. We sought to better characterize these trends and to identify predictors of colonoscopy uptake, particularly among Asian and Hispanic subgroups., Study: We used data from the New York City Community Health Survey to generate estimates of up-to-date colonoscopy use in Asian and Hispanic subgroups across 6 time periods spanning 2003-2016. For each subgroup, we calculated the percent change in colonoscopy uptake over the study period and the difference in uptake compared to non-Hispanic Whites in 2015-2016. We also used multivariable logistic regression to identify predictors of colonoscopy uptake., Results: All racial and ethnic subgroups with reliable estimates saw a net increase in colonoscopy uptake between 2003 and 2016. In 2015-2016, compared with non-Hispanic Whites, Puerto Ricans, Dominicans, and Central/South Americans had higher colonoscopy uptake, whereas Chinese, Asian Indians, and Mexicans had lower uptake. On multivariable analysis, age, marital status, insurance status, primary care provider, receipt of flu vaccine, frequency of exercise, and smoking status were the most consistent predictors of colonoscopy uptake (≥4 time periods)., Conclusions: We found significant variation in colonoscopy uptake among Asian and Hispanic subgroups. We also identified numerous demographic, socioeconomic, and health-related predictors of colonoscopy uptake. These findings highlight the importance of examining health disparities through the lens of disaggregated racial/ethnic subgroups and have the potential to inform future public health interventions., (Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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16. Guideline concordant care for patients with locally advanced cervical cancer by disaggregated Asian American and Native Hawaiian/Pacific Islander groups: A National Cancer Database Analysis.
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Lee SS, Gold HT, Kwon SC, Pothuri B, and Lightfoot MDS
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- Female, Humans, Neoplasm Staging statistics & numerical data, Practice Guidelines as Topic, Asia, Eastern ethnology, Asia, Southern ethnology, Asia, Southeastern ethnology, United States, Asian statistics & numerical data, Native Hawaiian or Other Pacific Islander statistics & numerical data, Uterine Cervical Neoplasms diagnosis, Uterine Cervical Neoplasms ethnology, Uterine Cervical Neoplasms therapy
- Abstract
Objective: Despite the within-group heterogeneity, Asian American (AA) and Native Hawaiian and Pacific Islander (NH/PI) patients are often grouped together. We compared the patterns of guideline-concordant care for locally advanced cervical cancer for disaggregated AA and NH/PI patients., Methods: Patients with stage II-IVA cervical cancer between 2004 and 2020 were identified from the National Cancer Database. AA patients were disaggregated as East Asian (EA), South Asian (SA), and Southeast Asian (SEA). NH/PI patients were classified as a distinct racial subgroup. The primary outcome was the proportion undergoing guideline-concordant care, defined by radiation therapy with concurrent chemotherapy, brachytherapy, and completion of treatment within eight weeks., Results: Of 48,116 patients, 2107 (4%) were AA and 171 (<1%) were NH/PI. Of the AA patients, 36% were SEA, 31% were EA, 12% were SA, and 21% could not be further disaggregated due to missing or unknown data. NH/PI patients were more likely to be diagnosed at an early age (53% NH/PI vs. 30% AA, p < 0.001) and have higher rates of comorbidities (18% NH/PI vs. 14% AA, p < 0.001). Within the AA subgroups, only 82% of SEA patients received concurrent chemotherapy compared to 91% of SA patients (p = 0.026). SA patients had the longest median OS (158 months) within the AA subgroups compared to SEA patients (113 months, p < 0.001)., Conclusion: Disparities exist in the receipt of standard of care treatment for cervical cancer by racial and ethnic subgroups. It is imperative to disaggregate race and ethnicity data to understand potential differences in care and tailor interventions to achieve health equity., Competing Interests: Conflict of interest statement B.Pothuri reports grants and fees from Acrivon, Agenus, AstraZeneca, Celgene, Celsion, Clovis Oncology, Curio Science, Eisai, GOG Foundation, Imab, Imvax, Immunogen, Incyte, Inxmed, Karyopharm, Lilly, Merck, Mersana, Novocure, NRG Oncology, Onconova, R Pharm, Roche/Genetech, Seagen, Seattle Genetics, Signatera, Sutro, Takeda, Tesaro/GSK, Toray, VBL therapeutics, and Xendor., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2024
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17. Imaging follow-up strategy after endovascular treatment of Intracranial aneurysms: A literature review and guideline recommendations.
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Cho YH, Choi J, Huh CW, Kim CH, Chang CH, Kwon SC, Kim YW, Sheen SH, Park SQ, Ko JK, Ha SK, Jeong HW, and Kang HS
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Objective: Endovascular coil embolization is the primary treatment modality for intracranial aneurysms. However, its long-term durability remains of concern, with a considerable proportion of cases requiring aneurysm reopening and retreatment. Therefore, establishing optimal follow-up imaging protocols is necessary to ensure a durable occlusion. This study aimed to develop guidelines for follow-up imaging strategies after endovascular treatment of intracranial aneurysms., Methods: A committee comprising members of the Korean Neuroendovascular Society and other relevant societies was formed. A literature review and analyses of the major published guidelines were conducted to gather evidence. A panel of 40 experts convened to achieve a consensus on the recommendations using the modified Delphi method., Results: The panel members reached the following consensus: 1. Schedule the initial follow-up imaging within 3-6 months of treatment. 2. Noninvasive imaging modalities, such as three-dimensional time-of-flight magnetic resonance angiography (MRA) or contrast-enhanced MRA, are alternatives to digital subtraction angiography (DSA) during the first follow-up. 3. Schedule mid-term follow-up imaging at 1, 2, 4, and 6 years after the initial treatment. 4. If noninvasive imaging reveals unstable changes in the treated aneurysms, DSA should be considered. 5. Consider late-term follow-up imaging every 3-5 years for lifelong monitoring of patients with unstable changes or at high risk of recurrence., Conclusions: The guidelines aim to provide physicians with the information to make informed decisions and provide patients with high-quality care. However, owing to a lack of specific recommendations and scientific data, these guidelines are based on expert consensus and should be considered in conjunction with individual patient characteristics and circumstances.
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- 2024
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18. A Variational Autoencoder Cascade Generative Adversarial Network for Scalable 3D Object Generation and Reconstruction.
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Yu MS, Jung TW, Yun DY, Hwang CG, Park SY, Kwon SC, and Jung KD
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Generative Adversarial Networks (GANs) for 3D volume generation and reconstruction, such as shape generation, visualization, automated design, real-time simulation, and research applications, are receiving increased amounts of attention in various fields. However, challenges such as limited training data, high computational costs, and mode collapse issues persist. We propose combining a Variational Autoencoder (VAE) and a GAN to uncover enhanced 3D structures and introduce a stable and scalable progressive growth approach for generating and reconstructing intricate voxel-based 3D shapes. The cascade-structured network involves a generator and discriminator, starting with small voxel sizes and incrementally adding layers, while subsequently supervising the discriminator with ground-truth labels in each newly added layer to model a broader voxel space. Our method enhances the convergence speed and improves the quality of the generated 3D models through stable growth, thereby facilitating an accurate representation of intricate voxel-level details. Through comparative experiments with existing methods, we demonstrate the effectiveness of our approach in evaluating voxel quality, variations, and diversity. The generated models exhibit improved accuracy in 3D evaluation metrics and visual quality, making them valuable across various fields, including virtual reality, the metaverse, and gaming.
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- 2024
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19. Reallocating time between device-measured 24-hour activities and cardiovascular risk in Asian American immigrant women: An isotemporal substitution model.
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Park C, Larsen B, Kwon SC, Xia Y, LaNoue M, Dickson VV, Reynolds HR, and Spruill TM
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- Aged, Female, Humans, Middle Aged, Asian, Heart Disease Risk Factors, Cardiovascular Diseases, Emigrants and Immigrants, Exercise, Sedentary Behavior, Sleep
- Abstract
The 24-hour day consists of physical activity (PA), sedentary behavior, and sleep, and changing the time spent on one activity affects the others. Little is known about the impact of such changes on cardiovascular risk, particularly in Asian American immigrant (AAI) women, who not only have a higher cardiovascular risk but also place greater cultural value on family and domestic responsibilities compared to other racial/ethnic groups. The purpose of this study was to evaluate the effects of reallocating 30 minutes of each 24-hour activity component for another on BMI, waist circumference, and blood pressure in AAI women. Seventy-five AAI women completed 7 days of hip and wrist actigraphy monitoring and were included in the analysis (age = 61.5±8.0 years, BMI = 25.5±3.6 kg/m2, waist circumference = 85.9±10.2 cm). Sleep was identified from wrist actigraphy data, and moderate-to-vigorous PA (MVPA), light PA, and sedentary behavior identified from hip actigraphy data. On average, the women spent 0.5 hours in MVPA, 6.2 hours in light PA, 10 hours in sedentary activities, and 5.3 hours sleeping within a 24-hour day. According to the isotemporal substitution models, replacing 30 minutes of sedentary behavior with MVPA reduced BMI by 1.4 kg/m2 and waist circumference by 4.0 cm. Replacing that same sedentary time with sleep reduced BMI by 0.5 kg/m2 and waist circumference by 1.4 cm. Replacing 30 minutes of light PA with MVPA decreased BMI by 1.6 kg/m2 and waist circumference by 4.3 cm. Replacing 30 minutes of light PA with sleep also reduced BMI by 0.8 kg/m2 and waist circumference by 1.7 cm. However, none of the behavioral substitutions affected blood pressure. Considering AAI women's short sleep duration, replacing their sedentary time with sleep might be a feasible strategy to reduce their BMI and waist circumference., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Park et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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20. Association between single-person household wage workers in South Korea and insomnia symptoms: the 6th Korean Working Conditions Survey (KWCS).
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Lee YH, Lee YJ, Jang EC, Min YS, and Kwon SC
- Abstract
Background: The rise in single-person households is a global phenomenon with well-documented implications for both physical and mental well-being. However, there remains a scarcity of studies focusing specifically on the health impacts of single-person households on workers. This study aims to address this gap by comparing insomnia symptoms between single- and multi-person household workers, shedding light on the health implications of household composition., Methods: This study utilized data from the Sixth Korean Working Conditions Survey. Insomnia symptoms were categorized into normal sleep and insomnia symptom groups utilizing the 3-item Minimal Insomnia Symptom Scale. Multiple logistic regression analysis was employed to examine the association between single-person household wage workers and insomnia symptoms., Results: In comparison to wage workers from multi-person households, those from single-person households exhibited heightened risks of reporting insomnia symptoms. In the fully adjusted model, the odds ratios for symptoms of insomnia among single-person household wage workers was 1.173 (95% confidence interval: 1.020-1.349)., Conclusions: This study underscores that single-person household wage workers in Korea face an elevated risk of insomnia symptoms compared to their counterparts in multi-person households.
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- 2024
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21. Methods for retrospectively improving race/ethnicity data quality: a scoping review.
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Chin MK, Đoàn LN, Russo RG, Roberts T, Persaud S, Huang E, Fu L, Kui KY, Kwon SC, and Yi SS
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- Humans, Medically Underserved Area, Retrospective Studies, Ethnicity, Racial Groups, Data Accuracy
- Abstract
Improving race and ethnicity (hereafter, race/ethnicity) data quality is imperative to ensure underserved populations are represented in data sets used to identify health disparities and inform health care policy. We performed a scoping review of methods that retrospectively improve race/ethnicity classification in secondary data sets. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, searches were conducted in the MEDLINE, Embase, and Web of Science Core Collection databases in July 2022. A total of 2 441 abstracts were dually screened, 453 full-text articles were reviewed, and 120 articles were included. Study characteristics were extracted and described in a narrative analysis. Six main method types for improving race/ethnicity data were identified: expert review (n = 9; 8%), name lists (n = 27, 23%), name algorithms (n = 55, 46%), machine learning (n = 14, 12%), data linkage (n = 9, 8%), and other (n = 6, 5%). The main racial/ethnic groups targeted for classification were Asian (n = 56, 47%) and White (n = 51, 43%). Some form of validation evaluation was included in 86 articles (72%). We discuss the strengths and limitations of different method types and potential harms of identified methods. Innovative methods are needed to better identify racial/ethnic subgroups and further validation studies. Accurately collecting and reporting disaggregated data by race/ethnicity are critical to address the systematic missingness of relevant demographic data that can erroneously guide policymaking and hinder the effectiveness of health care practices and intervention., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2023
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22. Identifying opportunities for collective action around community nutrition programming through participatory systems science.
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Chebli P, Đoàn LN, Thompson RL, Chin M, Sabounchi N, Foster V, Huang TTK, Trinh-Shevrin C, Kwon SC, and Yi SS
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- Humans, Nutritional Status, Diet, Nutrition Policy, Food, Refuse Disposal
- Abstract
Purpose: To apply principles of group model building (GMB), a participatory systems science approach, to identify barriers and opportunities for collective impact around nutrition programming to reduce cancer risk for immigrant communities in an urban environment., Methods: We convened four in-person workshops applying GMB with nine community partners to generate causal loop diagrams (CLDs)-a visual representation of hypothesized causal relationships between variables and feedback structures within a system. GMB workshops prompted participants to collaboratively identify programmatic goals and challenges related to (1) community gardening, (2) nutrition education, (3) food assistance programs, and (4) community-supported agriculture. Participants then attended a plenary session to integrate findings from all workshops and identify cross-cutting ideas for collective action., Results: Several multilevel barriers to nutrition programming emerged: (1) food policies center the diets and practices of White Americans and inhibit culturally tailored food guidelines and funding for culturally appropriate nutrition education; (2) the lack of culturally tailored nutrition education in communities is a missed opportunity for fostering pride in immigrant food culture and sustainment of traditional food practices; and (3) the limited availability of traditional ethnic produce in food assistance programs serving historically marginalized immigrant communities increases food waste and worsens food insecurity., Conclusion: Emergent themes coalesced around the need to embed cultural tailoring into all levels of the food system, while also considering other characteristics of communities being reached (e.g., language needs). These efforts require coordinated actions related to food policy and advocacy, to better institutionalize these practices within the nutrition space., (© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2023
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23. The Association of Perfluoroalkyl Substance Exposure and a Serum Liver Function Marker in Korean Adults.
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Yun J and Kwon SC
- Abstract
Perfluoroalkyl substances (PFAS), widely used throughout industry and daily life, are currently one of the environmental pollutants garnering the most attention worldwide. Recently, environmental pollutants have had a high profile as one of the main causes of chronic liver disease, such as non-alcoholic fatty liver disease. Research on PFAS is actively underway. Although Korea has a remarkably high prevalence of chronic liver disease, and it continues to increase, only a few studies have revealed the relationship between PFAS and liver disease. In addition, regulations on PFAS in Korea are delayed compared to developed countries, such as Europe and the United States, and public interest is insufficient compared to others. Therefore, we would like to investigate the exposure of Koreans to PFAS in the blood and examine the relationship between these substances and markers of liver function (AST, ALT, and GGT). This study was based on the results of the Korean National Environmental Health Survey (KoNEHS) 2018–2020 (Cycle 4), and a total of 2961 subjects were selected. The concentration of PFAS in the blood of Korean adults was measured to be significantly higher based on the geometric mean compared to the results of recently investigated American adults based on the National Health and Nutrition Examination Survey (NHANES, 2017-2018). A multivariable linear regression analysis adjusted for age, sex, body mass index (BMI), smoking status, alcohol intake, and regular exercise was performed to examine changes in three liver function markers as the serum PFAS concentration increased. We found that some of the five PFAS (PFOA, PFOS, PFHxS, PFNA, and PFDeA) were significantly associated with increased liver enzymes. It is necessary to recognize the threat of PFAS to the human body and to discuss regulations and alternatives in earnest. Continuous follow-up studies are required through a well-designed cohort., Competing Interests: The authors declare no conflicts of interest.
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- 2023
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24. The Expression of Programmed Death-Ligand 1 on Immune Cells Is Related to a Better Prognosis in Biliary Tract Cancer.
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Kwon SC, Bang S, Park YN, Park JH, Kim SJ, Jo JH, Chung MJ, Park JY, Park SW, Song SY, Park E, and Lee HS
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- Animals, Mice, Humans, Prognosis, Tumor Microenvironment, B7-H1 Antigen, Biliary Tract Neoplasms
- Abstract
Background/aims: Programmed death-ligand 1 (PD-L1) expression in tumor cells is associated with a poor biliary tract cancer (BTC) prognosis; tumor-infiltrating immune cells in the tumor microenvironment are associated with a better prognosis. The effect of PD-L1 expression on immune cells on survival is unclear. We investigated the relationship between PD-L1 expression in immune cells and BTC prognosis., Methods: PD-L1 expression was evaluated using an anti-PD-L1 22C3 mouse monoclonal primary antibody, and its relationships with clinical characteristics and prognosis were analyzed using the Cox proportional hazard model to investigate the prognostic performance of PD-L1 in BTC., Results: Among 144 analyzed cases, patients with positive PD-L1 expression in tumor cells and negative PD-L1 expression in immune cells showed poorer overall survival rates than those exhibiting other expressions (tumor cells: hazard ratio [HR]=1.023, p<0.001; immune cells: HR=0.983, p=0.021). PD-L1 expression in tumor cells was an independent predictor of poor overall survival (HR=1.024, p<0.001). In contrast, PD-L1 expression in immune cells was a predictive marker of good prognosis (HR=0.983, p=0.018)., Conclusions: PD-L1 expression in immune cells may be used as an independent factor to evaluate the prognosis of patients with BTC.
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- 2023
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25. Tailored antiplatelet therapy in stent assisted coiling for unruptured aneurysms: a nationwide registry study.
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Koh JS, Hwang G, Park JC, Lee CY, Chung J, Lee SW, Kwon HJ, Kim SR, Kang DH, Kwon SC, Kim ST, Chang CH, Jang DK, Choi JH, Kim YW, Kim BT, Shin BG, You SH, Chung SY, Ko J, Kim TG, Yoon SM, Lee JY, Park H, Park JH, Cho JH, Koo HW, Sung JH, Rhee J, and Shin HG
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- Humans, Platelet Aggregation Inhibitors therapeutic use, Clopidogrel, Stents, Registries, Retrospective Studies, Treatment Outcome, Intracranial Aneurysm therapy, Embolization, Therapeutic adverse effects, Thromboembolism therapy
- Abstract
Background: Antiplatelet therapy, where regimens are tailored based on platelet function testing, has been introduced into neurointerventional surgery. This nationwide registry study evaluated the effect and safety of tailored antiplatelet therapy in stent assisted coiling for unruptured aneurysms compared with conventional therapy using a standard regimen., Methods: This study enrolled 1686 patients in 44 participating centers who received stent assisted coiling for unruptured aneurysms between January 1, 2019 and December 31, 2019. The standard regimen (aspirin and clopidogrel) was used for all patients in the conventional group (924, 19 centers). The regimen was selected based on platelet function testing (standard regimen for clopidogrel responders; adding cilostazol or replacing clopidogrel with other thienopyridines (ticlopidine, prasugrel, or ticagrelor) for clopidogrel non-responders) in the tailored group (762, 25 centers). The primary outcome was thromboembolic events. Secondary outcomes were bleeding and poor outcomes (increase in modified Rankin Scale score). Outcomes within 30 days after coiling were compared using logistic regression analysis., Results: The thromboembolic event rate was lower in the tailored group than in the conventional group (30/762 (3.9%) vs 63/924 (6.8%), adjusted OR 0.560, 95% CI 0.359 to 0.875, P=0.001). The bleeding event rate was not different between the study groups (62/762 (8.1%) vs 73/924 (7.9%), adjusted OR 0.790, 95% CI 0.469 to 1.331, P=0.376). Poor outcomes were less frequent in the tailored group (12/762 (1.6%) vs 34 (3.7%), adjusted OR 0.252, 95% CI 0.112 to 0.568, P=0.001)., Conclusion: Tailored antiplatelet therapy in stent assisted coiling for unruptured aneurysms reduced thromboembolic events and poor outcomes without increasing bleeding., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2023
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26. Urgent need for substance use disorder research among understudied populations: examining the Asian-American experience.
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Choi S, Lim S, Kwon SC, Trinh-Shevrin C, Neighbors CJ, and Yi SS
- Abstract
Substance use disorder (SUD) among Asian Americans is understudied. Our review of National Institutes of Health-funded projects reveals a striking underrepresentation of research focused on SUD in this population, possibly perpetuated by the pervasive societal myth that Asian Americans are a healthy community. Moreover, the limited availability and disaggregation of data on SUD among Asian Americans further hinder our understanding of prevalence rates, treatment utilization, and associated disparities-thereby limiting opportunities for prevention and intervention. In light of these findings, our review serves as a crucial call to action, emphasizing the urgent need for increased research efforts and resources to address the significant gaps in knowledge and inform effective interventions for addressing SUD among Asian Americans., Competing Interests: Please see ICMJE form(s) for author conflicts of interest. These have been provided as supplementary materials., (© The Author(s) 2023. Published by Oxford University Press on behalf of Project HOPE - The People-To-People Health Foundation, Inc.)
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- 2023
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27. IDEAL: A Community-Academic-Governmental Collaboration Toward Improving Evidence-Based Data Collection on Race and Ethnicity.
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Kader F, Ðoàn LN, Chin MK, Scherer M, Cárdenas L, Feng L, Leung V, Gundanna A, Lee M, Russo R, Ogedegbe OG, John I, Cho I, Kwon SC, and Yi SS
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- Humans, Data Collection, Ethnicity, Racial Groups
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- 2023
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28. Occupational and Psychological Factors Associated With Burnout in Night Shift Nurses.
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Min YS, Lee HA, Kwon SC, Lee I, Kim K, Kim JS, Han JH, and Lee HY
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Objective: Providing inpatient nursing care inevitably involves night shift work. However, night shift work nurses often face psychiatric health problems such as burnout. If night shift work is an essential work type for nurses, it is necessary to select personnel suitable for night shift work or establish improvement measures such as psychiatric intervention through psychiatric evaluation. The objective of this study was to identify factors that could be interventional among factors affecting burnout in shift-working nurses., Methods: A total of 231 night shift female nurses participated in this study. A questionnaire survey was given to assess their general characteristics. To assess burnout, the Maslach Burnout Inventory-General Survey Korean version was adopted. In addition, several mental health scales were used to identify individual psychological characteristics. To identify variables associated with the presence of burnout, odds ratios were calculated using a logistic regression model taking three dimensions of burnout as a dependent variable after adjusting for psychological and occupational factors., Results: High resilience was a significant preventive factor in the three dimensions of burnout. Regarding occupational factor, the longer the duration of employment, the higher depersonalization, but the professional efficacy was good., Conclusion: Our results indicate that resilience and social support could be prevention factors for burnout. This study is meaningful in examining items that require active intervention and support for burnout targeting night shift nurses who are indispensable for patient care.
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- 2023
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29. Correction: Targeted degradation of ⍺-synuclein aggregates in Parkinson's disease using the AUTOTAC technology.
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Lee J, Sung KW, Bae EJ, Yoon D, Kim D, Lee JS, Park DH, Park DY, Mun SR, Kwon SC, Kim HY, Min JO, Lee SJ, Suh YH, and Kwon YT
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- 2023
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30. Assessing Equitable Inclusion of Underrepresented Older Adults in Alzheimer's Disease, Related Cognitive Disorders, and Aging-Related Research: A Scoping Review.
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Godbole N, Kwon SC, Beasley JM, Roberts T, Kranick J, Smilowitz J, Park A, Sherman SE, Trinh-Shevrin C, and Chodosh J
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- Aged, Female, Humans, Aging, Geroscience, Sexual Behavior, Male, Middle Aged, Alzheimer Disease, Cognitive Dysfunction
- Abstract
Background and Objectives: The rapidly aging and diversifying U.S. population is challenged by increases in prevalence of Alzheimer's disease (AD) and aging-related disorders. We conducted a scoping review to assess equitable inclusion of diverse older adult populations in aging research focused on National Institutes of Health (NIH)-sponsored research., Research Design and Methods: The scoping review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocol. The search was limited to NIH-funded studies focusing on aging, AD, and Alzheimer's disease-related dementias (ADRD) and included adults aged 55 and older. The priority populations and health disparities put forth by the National Institute on Aging Health Disparities Framework serve as a model for guiding inclusion criteria and for interpreting the representation of these underrepresented groups, including racial-ethnic minorities, socioeconomically disadvantaged, rural populations, groups with disabilities, and lesbian, gay, bisexual, transgender, and queer or questioning (LGBTQ) communities., Results: Our search identified 1,177 records, of which 436 articles were included in the analysis. Inclusion of individuals with ADRD and mild cognitive impairment, racial-ethnic minorities, rural populations, socioeconomically disadvantaged, groups with disabilities, and LGBTQ communities were poorly specified in most studies. Studies used multiple recruitment methods, conducting studies in community settings (59%) and hospitals/clinics (38%) most frequently. Incentives, convenience factors, and sustained engagement via community-based and care partners were identified as key strategies for improved retention., Discussion and Implications: This scoping review identified gaps in existing literature and aims for future work, including stronger research focus on, better inclusion of, and improved data collection and reporting of older adults from underrepresented groups., (© The Author(s) 2022. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2023
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31. Targeted degradation of ⍺-synuclein aggregates in Parkinson's disease using the AUTOTAC technology.
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Lee J, Sung KW, Bae EJ, Yoon D, Kim D, Lee JS, Park DH, Park DY, Mun SR, Kwon SC, Kim HY, Min JO, Lee SJ, Suh YH, and Kwon YT
- Subjects
- Mice, Animals, alpha-Synuclein metabolism, Autophagy, Proteolysis, Cells, Cultured, Brain metabolism, Parkinson Disease metabolism
- Abstract
Background: There are currently no disease-modifying therapeutics for Parkinson's disease (PD). Although extensive efforts were undertaken to develop therapeutic approaches to delay the symptoms of PD, untreated α-synuclein (α-syn) aggregates cause cellular toxicity and stimulate further disease progression. PROTAC (Proteolysis-Targeting Chimera) has drawn attention as a therapeutic modality to target α-syn. However, no PROTACs have yet shown to selectively degrade α-syn aggregates mainly owing to the limited capacity of the proteasome to degrade aggregates, necessitating the development of novel approaches to fundamentally eliminate α-syn aggregates., Methods: We employed AUTOTAC (Autophagy-Targeting Chimera), a macroautophagy-based targeted protein degradation (TPD) platform developed in our earlier studies. A series of AUTOTAC chemicals was synthesized as chimeras that bind both α-syn aggregates and p62/SQSTM1/Sequestosome-1, an autophagic receptor. The efficacy of Autotacs was evaluated to target α-syn aggregates to phagophores and subsequently lysosomes for hydrolysis via p62-dependent macroautophagy. The target engagement was monitored by oligomerization and localization of p62 and autophagic markers. The therapeutic efficacy to rescue PD symptoms was characterized in cultured cells and mice. The PK/PD (pharmacokinetics/pharmacodynamics) profiles were investigated to develop an oral drug for PD., Results: ATC161 induced selective degradation of α-syn aggregates at DC
50 of ~ 100 nM. No apparent degradation was observed with monomeric α-syn. ATC161 mediated the targeting of α-syn aggregates to p62 by binding the ZZ domain and accelerating p62 self-polymerization. These p62-cargo complexes were delivered to autophagic membranes for lysosomal degradation. In PD cellular models, ATC161 exhibited therapeutic efficacy to reduce cell-to-cell transmission of α-syn and to rescue cells from the damages in DNA and mitochondria. In PD mice established by injecting α-syn preformed fibrils (PFFs) into brain striata via stereotaxic surgery, oral administration of ATC161 at 10 mg/kg induced the degradation of α-syn aggregates and reduced their propagation. ATC161 also mitigated the associated glial inflammatory response and improved muscle strength and locomotive activity., Conclusion: AUTOTAC provides a platform to develop drugs for PD. ATC161, an oral drug with excellent PK/PD profiles, induces selective degradation of α-syn aggregates in vitro and in vivo. We suggest that ATC161 is a disease-modifying drug that degrades the pathogenic cause of PD., (© 2023. The Author(s).)- Published
- 2023
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32. Relationship between job stress and impaired fasting glucose in male steel industry workers: a cross-sectional study.
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Lee HK, Lee I, Yun J, Lee YJ, Jang EC, Min YS, and Kwon SC
- Abstract
Background: The purpose of this study is to investigate the relationship between job stress and impaired fasting glycemia (IFG) of male workers in a manufacturing industry., Methods: Data were collected from 5,886 male workers in a manufacturing industry who participated in the medical examination from June 19 to August 14, 2020 through self-reported questionnaires. The general characteristics of the subjects, shift work, high blood pressure, dyslipidemia, and job stress were included. Job stress was measured using the Korean Occupational Stress Scale (KOSS) consisting of 8 items and 43 questions. Multivariable logistic regression analysis was used to investigate the IFG association with job stress., Results: Among the various factors that can cause job stress, only high job demand was associated with a risk of IFG (odds ratio, 1.43; 95% confidence interval, 1.13-1.82) especially in non-shift worker. For all other factors, no statistically significant results were obtained., Conclusions: In this study of male workers engaged in the Korean steel manufacturing industry, the 'job demand' item among job stress of non-shift worker was related to IFG., Competing Interests: Competing interests: The authors declare that they have no competing interests., (Copyright © 2023 Korean Society of Occupational & Environmental Medicine.)
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- 2023
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33. Migrated coil and damaged stent removal during coil embolization, using an additional, retrievable stent: A case report.
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Noh HS, Park SC, Lee JM, and Kwon SC
- Abstract
One of the common complications that can occur during coil embolization of cerebral aneurysms, is migration of coil lump alone. The removal of these migrated coils has been reported on a few occasions. On the other hand, rare complications would include the migration of the coil with subsequent stent dislocation. Currently, there is no standardized method to correct the complications of stent dislocation, and very few instances of this complication have been reported previously. In this report, we introduce a case of coil migration combined with stent dislocation. This occurred during coil embolization of an unruptured aneurysm of the distal, left internal carotid artery for a 52-year old woman. We retrieved both the damaged stent and migrated coil using another retrievable stent successfully with no more further complications. In the present report, we describe in detail how we corrected the complication successfully stent, and we discuss why this rescue maneuver is reasonable option for the complication mentioned above.
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- 2023
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34. The Cys-N-degron pathway modulates pexophagy through the N-terminal oxidation and arginylation of ACAD10.
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Shim SM, Choi HR, Kwon SC, Kim HY, Sung KW, Jung EJ, Mun SR, Bae TH, Kim DH, Son YS, Jung CH, Lee J, Lee MJ, Park JW, and Kwon YT
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- Animals, Mice, Sequestosome-1 Protein metabolism, Reactive Oxygen Species metabolism, Cysteamine, Cysteine, Ubiquitin metabolism, Arginine metabolism, Transferases metabolism, Macroautophagy, Autophagy physiology
- Abstract
In the N-degron pathway, N-recognins recognize cognate substrates for degradation via the ubiquitin (Ub)-proteasome system (UPS) or the autophagy-lysosome system (hereafter autophagy). We have recently shown that the autophagy receptor SQSTM1/p62 (sequestosome 1) is an N-recognin that binds the N-terminal arginine (Nt-Arg) as an N-degron to modulate autophagic proteolysis. Here, we show that the N-degron pathway mediates pexophagy, in which damaged peroxisomal fragments are degraded by autophagy under normal and oxidative stress conditions. This degradative process initiates when the Nt-Cys of ACAD10 (acyl-CoA dehydrogenase family, member 10), a receptor in pexophagy, is oxidized into Cys sulfinic (Cys
O2 ) or sulfonic acid (CysO3 ) by ADO (2-aminoethanethiol (cysteamine) dioxygenase). Under oxidative stress, the Nt-Cys of ACAD10 is chemically oxidized by reactive oxygen species (ROS). The oxidized Nt-Cys2 is arginylated by ATE1 -encoded R-transferases, generating the RCOX N-degron. RCOX -ACAD10 marks the site of pexophagy via the interaction with PEX5 and binds the ZZ domain of SQSTM1/p62, recruiting LC3+ -autophagic membranes. In mice, knockout of either Ate1 responsible for Nt-arginylation or Sqstm1/p62 leads to increased levels of peroxisomes. In the cells from patients with peroxisome biogenesis disorders (PBDs), characterized by peroxisomal loss due to uncontrolled pexophagy, inhibition of either ATE1 or SQSTM1/p62 was sufficient to recover the level of peroxisomes. Our results demonstrate that the Cys-N-degron pathway generates an N-degron that regulates the removal of damaged peroxisomal membranes along with their contents. We suggest that tannic acid, a commercially available drug on the market, has a potential to treat PBDs through its activity to inhibit ATE1 R-transferases. Abbreviations: ACAA1, acetyl-Coenzyme A acyltransferase 1; ACAD, acyl-Coenzyme A dehydrogenase; ADO, 2-aminoethanethiol (cysteamine) dioxygenase; ATE1, arginyltransferase 1; CDO1, cysteine dioxygenase type 1; ER, endoplasmic reticulum; LIR, LC3-interacting region; MOXD1, monooxygenase, DBH-like 1; NAC, N-acetyl-cysteine; Nt-Arg, N-terminal arginine; Nt-Cys, N-terminal cysteine; PB1, Phox and Bem1p; PBD, peroxisome biogenesis disorder; PCO, plant cysteine oxidase; PDI, protein disulfide isomerase; PTS, peroxisomal targeting signal; R-COX, Nt-Arg-CysOX; RNS, reactive nitrogen species; ROS, reactive oxygen species; SNP, sodium nitroprusside; UBA, ubiquitin-associated; UPS, ubiquitinproteasome system.- Published
- 2023
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35. Antioxidative and Anti-Inflammatory Activities of Rosebud Extracts of Newly Crossbred Roses.
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Wang C, Kim IJ, Seong HR, Noh CH, Park S, Kim TM, Jeong HS, Kim KY, Kim ST, Yuk HG, Kwon SC, Choi EK, and Kim YB
- Subjects
- Humans, Cyclooxygenase 2 metabolism, Anti-Inflammatory Agents therapeutic use, Inflammation drug therapy, Inflammation chemically induced, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Nitric Oxide Synthase Type II genetics, Nitric Oxide Synthase Type II metabolism, Dexamethasone adverse effects, Nitric Oxide metabolism, Lipopolysaccharides pharmacology, Plant Extracts therapeutic use, Antioxidants therapeutic use
- Abstract
Oxidative stress and inflammation are basic pathogenic factors involved in tissue injury and pain, as well as acute and chronic diseases. Since long-term uses of synthetic steroids and non-steroidal anti-inflammatory drugs (NSAIDs) cause severe adverse effects, novel effective materials with minimal side effects are required. In this study, polyphenol content and antioxidative activity of rosebud extracts from 24 newly crossbred Korean roses were analyzed. Among them, Pretty Velvet rosebud extract (PVRE) was found to contain high polyphenols and to show in vitro antioxidative and anti-inflammatory activities. In RAW 264.7 cells stimulated with lipopolysaccharide (LPS), PVRE down-regulated mRNA expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), and thereby decreased nitric oxide (NO) and prostaglandin E
2 (PGE2 ) production. In a subcutaneous air-pouch inflammation model, treatment with PVRE decreased λ-carrageenan-induced tissue exudation, infiltration of inflammatory cells, and inflammatory cytokines such as tumor necrosis factor-α and interleukin-1β concentrations, as achieved with dexamethasone (a representative steroid). Notably, PVRE also inhibited PGE2 , similar to dexamethasone and indomethacin (a representative NSAID). The anti-inflammatory effects of PVRE were confirmed by microscopic findings, attenuating tissue erythema, edema, and inflammatory cell infiltration. These results indicate that PVRE exhibits dual (steroid- and NSAID-like) anti-inflammatory activities by blocking both the iNOS-NO and COX-2-PG pathways, and that PVRE could be a potential candidate as an anti-inflammatory material for diverse tissue injuries.- Published
- 2023
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36. Promoting Physical Activity Among Immigrant Asian Americans: Results from Four Community Health Worker Studies.
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Wyatt LC, Katigbak C, Riley L, Zanowiak JM, Ursua R, Kwon SC, Trinh-Shevrin C, and Islam NS
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- Humans, Asian, Community Health Workers, Emigrants and Immigrants, Exercise, Health Promotion
- Abstract
Racial/ethnic minorities have demonstrated lower rates of physical activity (PA) than non-Hispanic Whites. This study examined outcomes in PA measures after participation in a community health worker (CHW) intervention. We performed a secondary data analysis from four randomized controlled trials utilizing CHWs (n = 842) in New York City (Bangladeshi-diabetes management, Filipino-hypertension management, and Korean and Asian Indian-diabetes prevention). Outcomes included total weekly PA, PA self-efficacy, PA barriers, and PA social interaction. Each measure was examined at baseline and study endpoint. Generalized estimating equation models were fitted to assess the repeated measures over time, while accounting for study group and socio-demographic factors. Moderate PA, recommended PA, and self-efficacy increased significantly among treatment group participants. PA social interaction increased significantly among Filipinos and Asian Indians. In adjusted regression analysis, time x group interaction was significant for all PA outcomes except for PA barriers. Culturally-adapted lifestyle interventions may potentially improve PA-related outcomes in Asian immigrant communities. Trial registration at ClinicalTrials.gov includes: NCT03530579 (RICE Project), NCT02041598 (DREAM Project), and NCT03100812 (AsPIRE)., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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37. A Culturally Adapted Breast and Cervical Cancer Screening Intervention Among Muslim Women in New York City: Results from the MARHABA Trial.
- Author
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Wyatt LC, Chebli P, Patel S, Alam G, Naeem A, Maxwell AE, Raveis VH, Ravenell J, Kwon SC, and Islam NS
- Subjects
- Humans, Female, Early Detection of Cancer methods, Islam, New York City, Health Education methods, Mass Screening methods, Uterine Cervical Neoplasms diagnosis, Uterine Cervical Neoplasms prevention & control, Breast Neoplasms diagnosis, Breast Neoplasms prevention & control
- Abstract
We examine the efficacy of MARHABA, a social marketing-informed, lay health worker (LHW) intervention with patient navigation (PN), to increase breast and cervical cancer screening among Muslim women in New York City. Muslim women were eligible if they were overdue for a mammogram and/or a Pap test. All participants attended a 1-h educational seminar with distribution of small media health education materials, after which randomization occurred. Women in the Education + Media + PN arm received planned follow-ups from a LHW. Women in the Education + Media arm received no further contact. A total of 428 women were randomized into the intervention (214 into each arm). Between baseline and 4-month follow-up, mammogram screening increased from 16.0 to 49.0% in the Education + Media + PN arm (p < 0.001), and from 14.7 to 44.6% in the Education + Media arm (p < 0.001). Pap test screening increased from 16.9 to 42.3% in the Education + Media + PN arm (p < 0.001) and from 17.3 to 37.1% in the Education + Media arm (p < 0.001). Cancer screening knowledge increased in both groups. Between group differences were not statistically significant for screening and knowledge outcomes. A longer follow-up period may have resulted in a greater proportion of up-to-date screenings, given that many women had not yet received their scheduled screenings. Findings suggest that the educational session and small media materials were perhaps sufficient to increase breast and cervical cancer screening among Muslim American women. ClinicalTrials.gov NCT03081507., (© 2022. The Author(s) under exclusive licence to American Association for Cancer Education.)
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- 2023
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38. Principles to operationalize equity in cancer research and health outcomes: lessons learned from the cancer prevention and control research network.
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Chebli P, Adsul P, Kranick J, Rohweder CL, Risendal BC, Bilenduke E, Williams R, Wheeler S, Kwon SC, and Trinh-Shevrin C
- Subjects
- Humans, Research Design, Health Equity, Neoplasms prevention & control
- Abstract
Reflecting their commitment to advancing health equity, the Cancer Prevention and Control Research Network (CPCRN) established a Health Equity Workgroup to identify and distill guiding principles rooted in health equity, community-engaged participatory research (CBPR), social determinants of health, and racial equity frameworks to guide its collective work. The Health Equity Workgroup utilized a multi-phase, participatory consensus-building approach to: (1) identify recurrent themes in health and racial equity frameworks; (2) capture perspectives on and experiences with health equity research among CPCRN members through an online survey; (3) engage in activities to discuss and refine the guiding principles; and (4) collect case examples of operationalizing equity principles in cancer research. Representatives from all CPCRN centers endorsed nine core principles to guide the Network's strategic plan: (1) Engage in power-sharing and capacity building with partners; (2) Address community priorities through community engagement and co-creation of research; (3) Explore and address the systems and structural root causes of cancer disparities; (4) Build a system of accountability between research and community partners; (5) Establish transparent relationships with community partners; (6) Prioritize the sustainability of research benefits for community partners; (7) Center racial equity in cancer prevention and control research; (8) Engage in equitable data collection, analysis, interpretation, and dissemination practices; and (9) Integrate knowledge translation, implementation, and dissemination into research plans. Dissemination products, such as toolkits and technical assistance workshops, reflecting these principles will foster knowledge transfer to intentionally integrate health and racial equity principles in cancer prevention and control research., (© 2023. The Author(s).)
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- 2023
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39. Challenges and recommendations to improve institutional review boards' review of community-engaged research proposals: A scoping review.
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Onakomaiya D, Pan J, Roberts T, Tan H, Nadkarni S, Godina M, Park J, Fraser M, Kwon SC, Schoenthaler A, and Islam N
- Abstract
Academic and community investigators conducting community-engaged research (CEnR) are often met with challenges when seeking Institutional Review Board (IRB) approval. This scoping review aims to identify challenges and recommendations for CEnR investigators and community partners working with IRBs. Peer-reviewed articles that reported on CEnR, specified study-related challenges, and lessons learned for working with IRBs and conducted in the United States were included for review. Fifteen studies met the criteria and were extracted for this review. Four challenges identified (1) Community partners not being recognized as research partners (2) Cultural competence, language of consent forms, and literacy level of partners; (3) IRBs apply formulaic approaches to CEnR; & (4) Extensive delays in IRB preparation and approval potentially stifle the relationships with community partners. Recommendations included (1) Training IRBs to understand CEnR principles to streamline and increase the flexibility of the IRB review process; (2) Identifying influential community stakeholders who can provide support for the study; and (3) Disseminating human subjects research training that is accessible to all community investigator to satisfy IRB concerns. Findings from our study suggest that IRBs can benefit from more training in CEnR requirements and methodologies., Competing Interests: The authors declare no competing interests., (© The Author(s) 2023.)
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- 2023
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40. The association of perfluoroalkyl substances (PFAS) exposure and kidney function in Korean adolescents using data from Korean National Environmental Health Survey (KoNEHS) cycle 4 (2018-2020): a cross-sectional study.
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Yun J, Jang EC, Kwon SC, Min YS, and Lee YJ
- Abstract
Background: Perfluoroalkyl substances (PFAS) are chemicals widely used in various products in everyday life. Due to its unique strong binding force, the half-life of PFAS is very long, so bioaccumulation and toxicity to the human body are long-standing concerns. In particular, effects on kidney function have recently emerged and there are no studies on the effect of PFAS on kidney function through epidemiological investigations in Korea. From 2018 to 2020, the Korean National Environmental Health Survey (KoNEHS) cycle 4, conducted an epidemiological investigation on the blood concentration of PFAS for the first time in Korea. Based on this data, the relationship between PFAS blood concentration and kidney function was analyzed for adolescents., Methods: We investigated 5 types of PFAS and their total blood concentration in 811 middle and high school students, living in Korea and included in KoNEHS cycle 4, and tried to find changes in kidney function in relation to PFAS concentration. After dividing the concentration of each of the 5 PFAS and the total concentration into quartiles, multivariable linear regression was performed to assess the correlation with kidney function. The bedside Schwartz equation was used as an indicator of kidney function., Results: As a result of multivariable linear regression, when observing a change in kidney function according to the increase in the concentration of each of the 5 PFAS and their total, a significant decrease in kidney function was confirmed in some or all quartiles., Conclusions: In this cross-sectional study of Korean adolescents based on KoNEHS data, a negative correlation between serum PFAS concentration and kidney function was found. A well-designed longitudinal study and continuous follow-up are necessary., Competing Interests: Competing interests: The authors declare that they have no competing interests., (Copyright © 2023 Korean Society of Occupational & Environmental Medicine.)
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- 2023
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41. Disaggregating Racial and Ethnic Data: A Step Toward Diversity, Equity, and Inclusion.
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Liang PS, Kwon SC, Cho I, Trinh-Shevrin C, and Yi S
- Subjects
- Humans, Ethnicity, Diversity, Equity, Inclusion, Racial Groups
- Published
- 2023
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42. Adaptation of a Dietary Screener for Asian Americans.
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Beasley JM, Yi S, Lee M, Park A, Thorpe LE, Kwon SC, and Rummo P
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- Humans, United States, Surveys and Questionnaires, Food, Vietnam, Asian, Diet
- Abstract
No brief dietary screeners are available that capture dietary consumption patterns of Asian Americans. The purpose of this article is to describe the cultural adaptation of the validated Dietary Screener Questionnaire (DSQ) for use by clinicians, researchers, and community-based partners seeking to understand and intervene on dietary behaviors among English-speaking Asian Americans, for the six largest Asian subgroups (Chinese, Filipino, Asian Indian, Vietnamese, Korean, Japanese) in the United States. This was mainly accomplished by adding culturally specific examples of foods to the questionnaire items via searching online databases and soliciting input from members of our community partner network representing each of the six largest Asian subgroups. Over half of the 26 items on the DSQ were modified to include more culturally specific foods. Developing high-quality tools that reflect the diversity of the U.S. population are critical to implement nutrition interventions that do not inadvertently widen health disparities.
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- 2023
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43. Meaningful Community-Engaged Partnerships: Lessons Learned from Implementing a Community Health Needs Survey among Asian American and Pacific Islander Subgroups.
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Wong JA, Wyatt LC, Yusuf Y, Rabat L, Tavake-Pasi OF, Kawpunna H, Ching V, Trinh-Shevrin C, and Kwon SC
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- Humans, Asian, Community Participation, Community-Based Participatory Research, Stakeholder Participation, Public Health, Pacific Island People
- Abstract
Background: Community-based needs assessments are instrumental to address gaps in data collection and reporting, as well as to guide research, policy, and practice decisions to address health disparities in under-resourced communities., Objectives: The New York University Center for the Study of Asian American Health collaboratively developed and administered a large-scale health needs assessment in diverse, low-income Asian American and Pacific Islander communities in New York City and three U.S. regional areas using an in-person or web-based, community-engaged approach., Methods: Community-engaged processes were modified over the course of three survey rounds, and findings were shared back to communities of interest using community preferred channels and modalities., Lessons Learned: Sustaining multiyear, on-the-ground engagement to drive community research efforts requires active bidirectional communication and delivery of tangible support to maintain trust between partners., Conclusions: Findings to facilitate community health programming and initiatives were built from lessons learned and informed by new and existing community-based partners.
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- 2023
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44. Monitoring the interactions between N-degrons and N-recognins of the Arg/N-degron pathway.
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Kwon SC, Lee J, Kwon YT, and Heo AJ
- Subjects
- Animals, Proteolysis, Protein Processing, Post-Translational, Mammals metabolism, Proteasome Endopeptidase Complex metabolism, Arginine metabolism
- Abstract
As defined by the N-degron pathway, single N-terminal (Nt) amino acids can function as N-degrons that induce the degradation of proteins and other biological materials. Central to this pathway is the selective recognition of N-degrons by cognate N-recognins that direct the substrates to either the ubiquitin (Ub)-proteasome system (UPS) or autophagy-lysosome pathway (ALP). Eukaryotic cells have developed diverse pathways to utilize all 20 amino acids in the genetic code as pro-N-degrons or N-degrons which can be generated through endoproteolytic cleavage or post-translational modifications. Amongst these, the arginine (Arg) N-degron plays a key role in both cis- and trans-degradation of a large spectrum of cellular materials by the proteasome or lysosome. In mammals, Arg/N-degrons can be generated through endoproteolytic cleavage or post-translational conjugation of the amino acid L-Arg by ATE1-encoded R-transferases (EC 2.3.2.8), which requires Arg-tRNA
Arg as a cofactor. Arg/N-degrons of short-lived substrates are recognized by a family of N-recognins characterized by the UBR box for polyubiquitination and proteasomal degradation. Under stresses, however, the same degrons can be recognized for autophagic degradation by the ZZ domain of the N-recognin p62/SQSTSM-1/Sequestosome-1 or KCMF1. Biochemical tools were developed to monitor the interaction of Arg/N-degrons with its cognate N-recognins. These assays were employed to identify new N-recognins and to characterize their biochemical properties and physiological functions. The principles of these assays may be applied for other types of N-degron pathways. Below, we describe the methods that analyze the interaction of Arg/N-degrons and their chemical mimics to N-recognins., (Copyright © 2023 Elsevier Inc. All rights reserved.)- Published
- 2023
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45. Corrigendum to: Thermotherapy as an alternative to exercise for metabolic health in obese postmenopausal women: focus on circulating irisin level.
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Lee SJ, Kim TW, Park TH, Lee IH, Jang EC, Kwon SC, Lee HJ, Choi JH, and Lee JB
- Published
- 2023
- Full Text
- View/download PDF
46. DTTrans: PV Power Forecasting Using Delaunay Triangulation and TransGRU.
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Song K, Jeong J, Moon JH, Kwon SC, and Kim H
- Abstract
In an era of high penetration of renewable energy, accurate photovoltaic (PV) power forecasting is crucial for balancing and scheduling power systems. However, PV power output has uncertainty since it depends on stochastic weather conditions. In this paper, we propose a novel short-term PV forecasting technique using Delaunay triangulation, of which the vertices are three weather stations that enclose a target PV site. By leveraging a Transformer encoder and gated recurrent unit (GRU), the proposed TransGRU model is robust against weather forecast error as it learns feature representation from weather data. We construct a framework based on Delaunay triangulation and TransGRU and verify that the proposed framework shows a 7-15% improvement compared to other state-of-the-art methods in terms of the normalized mean absolute error. Moreover, we investigate the effect of PV aggregation for virtual power plants where errors can be compensated across PV sites. Our framework demonstrates 41-60% improvement when PV sites are aggregated and achieves as low as 3-4% of forecasting error on average.
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- 2022
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47. Correlation between shift work and non-alcoholic fatty liver disease among male workers in the steel manufacturing company of Korea: a cross-sectional study.
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Kim K, Lee YJ, Kwon SC, Min YS, Lee HK, Baek G, Kim SH, and Jang EC
- Abstract
Background: Circadian rhythm disturbance caused by shift work has adverse effects on the metabolic homeostasis of the liver. Disruption of the metabolic homeostasis of the liver causes fat accumulation in the liver. The aim of this study was to investigate the correlation between shift work and non-alcoholic fatty liver disease (NAFLD) among male workers in the steel manufacturing industry of Korea., Methods: Based on medical examination data collected in June 2020, 2,511 male subjects from one steel manufacturing company in Korea were selected in total. NAFLD was evaluated using abdominal ultrasound, which was performed by two experienced radiologists. The multinomial logistic regression analysis was performed by adjusting for age, physical activity, smoking history, alcohol consumption, body mass index, waist circumference, blood pressure, blood glucose, lipidemia, liver function test, employment duration, and hepatotoxic materials exposure status., Results: Compared to daytime workers, the odds ratio (OR) of moderate-severe NAFLD in shift workers was 1.449 (95% confidence interval [CI], 1.028-2.043). Compared to daytime workers, the ORs of moderate-severe NAFLD were significantly higher for the group that engaged in total shift work for more than 20 years (OR, 2.285; 95% CI, 1.051-4.970), the group that was not allowed to sleep during night shift work (OR, 1.463; 95% CI, 1.030-2.078), and the group that consumed food during night shift work (OR, 1.580; 95% CI, 1.093-2.284)., Conclusions: There was a correlation between shift work and moderate-severe NAFLD in male steel manufacturing workers. There will be a need for more research related to the correlation of shift work with steatohepatitis and cirrhosis in the future., Competing Interests: Competing interests: The authors declare that they have no competing interests., (Copyright © 2022 Korean Society of Occupational & Environmental Medicine.)
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- 2022
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48. The health effects of low blood lead level in oxidative stress as a marker, serum gamma-glutamyl transpeptidase level, in male steelworkers.
- Author
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Lee SY, Lee YJ, Min YS, Jang EC, Kwon SC, and Lee I
- Abstract
Background: This study aimed to investigate the association between lead exposure and serum gamma-glutamyl transpeptidase (γGT) levels as an oxidative stress marker in male steelworkers., Methods: Data were collected during the annual health examination of workers in 2020. A total of 1,654 steelworkers were selected, and the variables for adjustment included the workers' general characteristics, lifestyle, and occupational characteristics. The association between the blood lead level (BLL) and serum γGT level was investigated by multiple linear and logistic regression analyses. The BLL and serum γGT values that were transformed into natural logarithms were used in multiple linear regression analysis, and the tertile of BLL was used in logistic regression analysis., Results: The geometric mean of the participants' BLLs and serum γGT level was 1.36 μg/dL and 27.72 IU/L, respectively. Their BLLs differed depending on age, body mass index (BMI), smoking status, drinking status, shift work, and working period, while their serum γGT levels differed depending on age, BMI, smoking status, drinking status, physical activity, and working period. In multiple linear regression analysis, the difference in models 1, 2, and 3 was significant, obtaining 0.326, 0.176, and 0.172 (all: p < 0.001), respectively. In the multiple linear regression analysis stratified according to drinking status, BMI, and age, BLLs were positively associated with serum γGT levels. Regarding the logistic regression analysis, the odds ratio of the third BLL tertile in models 1, 2, and 3 (for having an elevated serum γGT level within the first tertile reference) was 2.74, 1.83, and 1.81, respectively., Conclusions: BLL was positively associated with serum γGT levels in male steelworkers even at low lead concentrations (< 5 μg/dL)., Competing Interests: Competing interests: The authors declare that they have no competing interests., (Copyright © 2022 Korean Society of Occupational & Environmental Medicine.)
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- 2022
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49. Exploring community knowledge, attitudes and perceptions of Alzheimer's Disease/Alzheimer's Disease-Related Dementias and healthy ageing in Asian American, Native Hawaiian and Pacific Islanders.
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Wong JA, Min DK, Kranick J, Ushasri H, Trinh-Shevrin C, and Kwon SC
- Subjects
- United States, Humans, Aged, Native Hawaiian or Other Pacific Islander, Asian, Health Knowledge, Attitudes, Practice, Pacific Island People, American Indian or Alaska Native, Alzheimer Disease, Healthy Aging
- Abstract
Alzheimer's disease and related dementias (AD/ADRD) disparities exist in the rapidly growing and extremely heterogeneous Asian American and Native Hawaiian and Pacific Islander (NH/PI) ageing populations in the United States. Limited community-clinical resources supporting culturally competent and timely diagnosis exacerbate barriers to existing care services in these populations. Community-based participatory research or community-engaged research are proven community-academic research approaches that can support the development and implementation of community-focused programmes to maximise community benefit. The NYU Center for the Study of Asian American Health engaged our national and local community partners to gain a deeper understanding of AD/ADRD in this diverse and growing population, to develop a strategic community-engaged research agenda to understand, address and reduce AD/ADRD disparities among Asian American and NH/PI communities. Findings from an initial scoping review identified significant research gaps. We conducted a series of key informant interviews (n = 11) and a modified Delphi survey (n = 14) with Asian American and NH/PI community leaders and older adult service providers followed by a facilitated group discussion of survey findings to gain consensus on key priority research areas identified in the literature and to determine culturally and contextually appropriate approaches to support AD/ADRD prevention, early identification and treatment in Asian American and NH/PI communities. Future research and health education should focus on raising Asian American and NH/PI basic individual- and community-level awareness about AD/ADRD and leveraging existing community assets to integrate effective engagement strategies to access AD/ADRD services within the healthcare system., (© 2022 John Wiley & Sons Ltd.)
- Published
- 2022
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50. Thermotherapy as an alternative to exercise for metabolic health in obese postmenopausal women: focus on circulating irisin level.
- Author
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Lee SJ, Kim TW, Park TH, Lee IH, Jang EC, Kwon SC, Lee HJ, Choi JH, and Lee JB
- Abstract
Irisin is a myokine caused by exercise that improves insulin resistance and weight loss. However, under unfavorable conditions such as air pollution, and during the pandemic, outdoor activities are uncomfortable. Therefore, in this study, the effect of heat therapy (half bath 42 ± 0.5°C for 30 min) on irisin circulation levels as an exercise alternative for middle-aged obese women after menopause was investigated. Subjects were 33 women aged 49.54 ± 6.04 years, with parameters of height, 160.12 ± 4.33 cm, weight, 69.71 ± 7.52 kg, body surface area 1.73 ± 0.13 m
2 , body mass index, 27.19 ± 3.40 kg/m2 . The results suggest that circulating irisin levels showed a significant increase after one-time thermotherapy (TH-1). However, the increase in circulating irisin levels after 15 treatments (TH-15, 5 days/week, 3 weeks) was significantly varied. The level of adiponectin, which increases fatty oxidation to reduce fatty deposition, increased significantly at TH-1, but further increased at TH-15, which was significantly different from the level of TH-1. In addition, the basic serum free fatty acid (FFA) level was significantly increased at TH-15 compared to TH-1. Significant differences were also found in the lipid profile (body mass index, waist circumference, and % body fat). Thermotherapy can significantly increase the tympanic temperature and induce changes in circulating irisin and adiponectin levels. Thus, it resulted in positive changes in FFA and lipid profiles. Therefore, repeated thermotherapy is effective in increasing circulating irisin levels in postmenopausal obese women.- Published
- 2022
- Full Text
- View/download PDF
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