11,449 results on '"Lee, W."'
Search Results
2. Relationship between short-term ozone exposure, cause-specific mortality, and high-risk populations: A nationwide, time-stratified, case-crossover study.
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Kim Y, Oh J, Kim S, Kim A, Park J, Ahn S, Kang C, Kim S, Lee HJ, Lee JT, and Lee W
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- Humans, Republic of Korea epidemiology, Aged, Middle Aged, Adult, Female, Male, Young Adult, Mortality trends, Adolescent, Child, Air Pollution adverse effects, Cause of Death, Child, Preschool, Infant, Ozone analysis, Ozone toxicity, Ozone adverse effects, Cross-Over Studies, Air Pollutants toxicity, Air Pollutants analysis, Environmental Exposure adverse effects
- Abstract
Background: Previous studies reported that short-term exposure to ground-level ozone is associated with mortality risk. However, due to the limited monitored areas, existing studies were limited in assessing the nationwide risk and suggesting specific vulnerable populations to the ozone-mortality risk., Methods: We performed a nationwide time-stratified case-crossover study to evaluate the association between short-term ozone and cause-specific mortality in South Korea (2015-2019). A machine learning-ensemble prediction model (a test R
2 > 0.96) was used to assess the short-term ozone exposure. Stratification analysis was conducted to examine the high-risk populations, and the excess mortality due to non-compliance with the WHO guideline was also assessed., Results: For all-cause mortality (1,343,077 cases), the risk associated with ozone (lag0- 1) was weakly identified (odd ratio: 1.005 with 95% CI: 0.997-1.014), and the risk was prominent in mortality with circulatory system diseases. In addition, based on the point estimates, the ozone-mortality risk was higher in people aged less than 65y, and this pattern was also observed in circulatory system disease deaths and urban areas., Conclusions: This study provides national estimates of mortality risks associated with short-term ozone. Results showed that the benefits of stricter air quality standards could be greater in vulnerable populations., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Inc. All rights reserved.)- Published
- 2024
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3. Surviving the cold: Assessing long-term outcomes among Korean CKD patients exposed to low perceived temperature during winter.
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Ko A, Oh S, Byon JY, Weon B, Lee J, Lee W, Oh YK, Kim DK, Kim S, Kim YS, Lim CS, and Lee JP
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- Humans, Male, Female, Retrospective Studies, Middle Aged, Aged, Republic of Korea epidemiology, Adult, Seoul epidemiology, Renal Insufficiency, Chronic mortality, Renal Insufficiency, Chronic epidemiology, Cold Temperature adverse effects, Seasons
- Abstract
Perceived temperature (PT), which encompasses meteorological factors such as wind speed, cloud cover, and humidity, reflects the actual effect of temperature on the human body. However, limited data exist on the health implications of prolonged exposure to low temperatures during winter in individuals with chronic kidney disease (CKD). We investigated the association between winter PT and long-term outcomes among CKD patients. A total of 32,870 CKD patients from three tertiary hospitals in Seoul were enrolled in this retrospective study (2001-2018). PT was calculated using Staiger's equation, integrating temperature data from 29 automated weather stations across Seoul, along with dew point temperature, wind velocity, and cloud cover data. Kriging interpolation was utilized to estimate PT values at the patients' locations. Overall mortality and major adverse cardiovascular events (MACEs) were assessed using a time-varying Cox proportional hazards model. Additionally, the Cox regression model evaluated PT corresponding to temperature thresholds for cold surge watches or warnings. Over a median follow-up of 6.14 ± 3.96 years, 6147 deaths (18.7%) were recorded. We found that as the average or minimum PT and Ta decreased by 1 °C, the risk of overall mortality significantly increased. In multivariable analyses, the hazard ratio (HR) for the average PT was 1.049 (95% confidence interval [CI] 1.028-1.071), and that for the minimum PT was 1.038 (CI 1.027-1.052). Furthermore, a cold surge warning at a PT of -25.63 °C indicated an HR of 1.837 (CI 1.764-1.914) and a C-index of 0.792. The increased risk of mortality was more pronounced in patients with low or middle socioeconomic statuses. For MACEs, lower average and minimum PT and Ta were associated with an increased risk, following a similar trend to overall mortality, although not all results reached statistical significance. These findings emphasize the importance of targeted public health policies to mitigate risks among vulnerable CKD patients., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Inc.)
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- 2024
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4. Longitudinal multiomic profiling and corticosteroid modulation of the immediate innate immune response to an adenovirus-vector vaccine.
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Jin Choi S, Lee W, Cheol Kim S, Jo HY, Park HY, Bin Kim H, Park WY, Ho Park S, Ko JH, and Seok Lee J
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- Humans, COVID-19 prevention & control, COVID-19 immunology, Adrenal Cortex Hormones, Spike Glycoprotein, Coronavirus immunology, Spike Glycoprotein, Coronavirus genetics, Animals, Vaccination methods, Monocytes immunology, Immunogenicity, Vaccine, Genetic Vectors genetics, T-Lymphocytes immunology, Male, Female, Adult, COVID-19 Vaccines immunology, Immunity, Innate, ChAdOx1 nCoV-19 immunology, SARS-CoV-2 immunology, SARS-CoV-2 genetics
- Abstract
Among new vaccine technologies contributed to the control of the COVID-19 pandemic, ChAdOx1 nCoV-19, a chimpanzee adenovirus (ChAd)-vector vaccine expressing the SARS-CoV-2 spike protein, could be administered globally owing to its low production cost and lack of a requirement for frozen storage. Despite its benefits, most recipients have reported immediate inflammatory reactions after the initial dose vaccination. We comprehensively examined the immune landscape following ChAdOx1 nCoV-19 vaccination based on the single-cell transcriptomes of immune cells and epigenomic profiles of monocytes. Monocyte and innate-like activated T cell populations expressing interferon-stimulated genes (ISGs) increased 1 day post-vaccination with appearance of distinct subtype of ISG-activated cells, returning to baseline by day 14. Pre-treatment with oral corticosteroids effectively curtailed these ISG-associated inflammatory responses by decreasing chromatin accessibility of major ISGs, without hampering vaccine immunogenicity. Our findings provide insights into the human immune response following ChAd-based vaccination and propose a method to reduce inflammatory side effects., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: [Jeong Seok Lee reports financial support was provided by Korea Advanced Institute of Science and Technology. Jeong Seok Lee reports a relationship with Korea Advanced Institute of Science and Technology that includes: funding grants. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.]., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
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- 2024
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5. Cesium adsorption from an aqueous medium for environmental remediation: A comprehensive analysis of adsorbents, sources, factors, models, challenges, and opportunities.
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Yaqub M, Mee-Ngern L, and Lee W
- Abstract
Considering the widespread and indispensable nature of nuclear energy for future power generation, there is a concurrent increase in the discharge of radioactive Cs into water streams. Recent studies have demonstrated that adsorption is crucial in removing Cs from wastewater for environmental remediation. However, the existing literature lacks comprehensive studies on various adsorption methods, the capacities or efficiencies of adsorbents, influencing factors, isotherm and kinetic models of the Cs adsorption process. A bibliometric and comprehensive analysis was conducted using 1179 publications from the Web of Science Core Collection spanning from 2014 to 2023. It reviews and summarizes current publication trends, active countries, adsorption methods, adsorption capacities or efficiencies of adsorbents, tested water sources, influencing factors, isotherm, and kinetic models of Cs adsorption. The selection of suitable adsorbents and operating parameters is identified as a crucial factor. Over the past decade, due to their notable capacity for Cs adsorption, considerable research has focused on novel adsorbents, such as Prussian blue, graphene oxide, hydrogel, and nanoadsorbents (NA). However, there remains a need for further development of application-oriented laboratory-scale experiments. Future research directions should encompass exploring adsorption mechanisms, developing new adsorbents or their combinations, practical applications of lab-scale studies, and recycling radioactive Cs from wastewater. Drawing upon this literature review, we present the most recent research patterns concerning adsorbents to remove Cs, outline potential avenues for future research, and delineate the obstacles hindering effective adsorption. This comprehensive bibliometric review provides valuable insights into prevalent research focal points and emerging trends, serving as a helpful resource for researchers and policymakers seeking to understand the dynamics of adsorbents for Cs removal from water., Competing Interests: Declaration of competing interest The authors declare no conflicts of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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6. In vitro and in silico assessment of cytotoxicity of dinitramine via calcium dysregulation and mitochondrial dysfunction in bovine mammary glands.
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Lee W, An G, Kim J, Lee H, Lim W, and Song G
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- Animals, Cattle, Female, Apoptosis drug effects, Epithelial Cells drug effects, Epithelial Cells metabolism, Cell Line, Mammary Glands, Animal drug effects, Mammary Glands, Animal metabolism, Mitochondria drug effects, Mitochondria metabolism, Herbicides toxicity, Calcium metabolism, Molecular Docking Simulation
- Abstract
The herbicide market is expanding rapidly due to the global increase in herbicide usage. Dairy cows are susceptible to herbicide exposure through the ingestion of contaminated plants, which can adversely affect the mammary gland health and reduce milk production. Dinitramine, a synthetic herbicide in the dinitroaniline family, is typically used to control weeds by inhibiting their sprouting and root development. While previous studies have demonstrated the cytotoxicity of dinitramine in aquatic organisms, research on its toxicity in cattle is limited. In this study, bovine mammary epithelial cells (MAC-T) were used to verify the detrimental effects on dairy cows, especially on the mammary glands. First, we evaluated the cytotoxic effects of dinitramine on MAC-T cells and examined various cellular responses to dinitramine treatment, including alterations in apoptotic cells, mitochondrial dysfunction, and calcium dysregulation. Moreover, the expression levels of AKT and MAPK signaling proteins were confirmed in response to dinitramine treatment. Alterations in the mRNA levels of genes related to milk production and inflammatory response following dinitramine exposure were evaluated using quantitative PCR. Finally, we assessed the binding affinity between dinitramine and the target proteins using in silico molecular docking analysis. Overall, the cumulative evidence of the various toxic effects of dinitramine on MAC-T cells suggests its potential to reduce both milk yield and quality., Competing Interests: Declaration of competing interest The authors declare that there are no conflicts of interest., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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7. Case log trends of urogynecology and reconstructive pelvic surgery fellows: A comparison of urology- and gynecology-based fellowship programs.
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Tabakin AL, Sawhney R, Daily AM, Winkler HA, Shalom DF, Tam J, and Lee W
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- Humans, Female, Gynecologic Surgical Procedures education, Education, Medical, Graduate, Pelvic Organ Prolapse surgery, Urologic Surgical Procedures education, Urology education, Gynecology education, Fellowships and Scholarships, Plastic Surgery Procedures education
- Abstract
Aims: Urogynecology and Reconstructive Pelvic Surgery (URPS) fellowship can be pursued after completion of either a urology (URO) or obstetrics and gynecology (GYN) residency. Our aim is to determine differences in graduating fellow cohort (GFC) case logs between URO- and GYN-based URPS programs., Methods: Accreditation Council for Graduate Medical Education case logs for URPS GFCs in both GYN- and URO-based programs were analyzed for the 2019-2023 academic years (AY). Unpaired t-tests with Welch's correction were used to compare annual mean logged cases between URO- versus GYN-based GFCs for select surgical categories and the top 11 most logged index cases., Results: GYN-based GFCs logged more cases for all pelvic organ prolapse (POP) categories including surgery on apical POP, anterior wall POP, and posterior wall POP (all p < 0.01), while URO-based GFCs logged more cases for surgery on the urinary system (p = 0.03). For the top 11 logged procedures, URO-based GFCs logged more sacral neuromodulation cases (p = 0.02), whereas GYN-based GFCs logged more slings, vaginal hysterectomies, minimally-invasive hysterectomies, vaginal apical POP, vaginal posterior POP, vaginal anterior POP, and minimally-invasive apical POP cases (all p < 0.01). There was no difference between URO- and GYN-based GFCs for complex urodynamics, cystoscopy with botox injection, or periurethral injection cases., Conclusions: URO-based URPS fellows tend to graduate with more surgery on the urinary system and sacral neuromodulation cases, while GYN-based fellows perform more slings, hysterectomies, and POP surgery. These findings may help fellowships better understand potential differences in training among graduates from URO- and GYN-based programs and encourage collaboration to lessen these discrepancies., (© 2024 Wiley Periodicals LLC.)
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- 2024
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8. Air pollution and acute kidney injury with comorbid disease: A nationwide case-crossover study in South Korea.
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Min J, Lee W, Kang DH, Ahn S, Kim A, Kang C, Oh J, Jang H, Ho Jo C, Oh J, Park J, Moon J, Kim S, Lee J, Kim M, Kwag Y, and Ha E
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- Republic of Korea epidemiology, Humans, Female, Male, Middle Aged, Aged, Adult, Comorbidity, Young Adult, Emergency Service, Hospital statistics & numerical data, Environmental Exposure adverse effects, Adolescent, Aged, 80 and over, Acute Kidney Injury epidemiology, Acute Kidney Injury chemically induced, Cross-Over Studies, Air Pollution adverse effects, Particulate Matter adverse effects, Particulate Matter analysis, Ozone analysis, Ozone adverse effects, Air Pollutants adverse effects, Air Pollutants analysis
- Abstract
Emerging evidence suggests that air pollution is a significant contributor to the global burden of kidney disease. Although acute kidney injury (AKI) is a common secondary event in ill patients, evidence regarding the association between air pollution and AKI accompanied by specific comorbidities is limited. This study aimed to estimate the association between short-term exposure to air pollution (fine particulate matter ≤2.5 μm [PM
2.5 ] and ozone [O3 ]) and incident AKI by comorbid diseases using the Korea National Health Information Database (NHID). Total of 160,390 incident AKI cases, defined as an emergency department (ED) visit due to AKI, were observed within the period 2015-2021 in inland South Korea. A time-stratified case-crossover design was applied for PM2.5 and O3 individually, using a conditional logistic regression model within each case and its own control (three or four days of the same day of the week in the same month) to estimate the association between short-term air pollution exposure and ED visits due to AKI. Short-term exposure to PM2.5 and O3 was associated with ED visits due to AKI with ORs of 1.008 (95% confidence interval [CI]: 0.999, 1.017) and 1.019 (95% CI: 1.005, 1.033) for an interquartile range (IQR) increase in lag 0-1 day PM2.5 and O3 respectively, although OR for PM2.5 was marginally significant. The odds of incident AKI associated with PM2.5 was evident in conjunction with ischemic heart disease, cerebrovascular disease, gastrointestinal bleeding, and pneumonia. For O3 , the estimated odds was prominent for AKI with ischemic heart disease. In addition, the comorbid disease-specific odds of AKI attributed to air pollution varied by sex and age. Our findings provide epidemiological evidence of a plausible mechanism between air pollution and incident AKI and suggest the need for personalized AKI prevention strategies attributed to air pollution., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Youngrin Kwag, Eunhee Ha reports financial support was provided by Korea Ministry of Science and ICT. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Inc.)- Published
- 2024
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9. Deliberations of the Safety Task Force: Risk factors and treatment of adverse events associated with aesthetic injectables.
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Nikolis A, Cohen JL, Enright KM, Avelar L, Beleznay K, Biesman B, Cartier H, Cotofana S, Fabi S, Fitzgerald R, Goodman G, Lee W, Parada M, Rzany B, Schelke L, Wang H, Bromée T, and Weiner S
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- Humans, Risk Factors, Patient Safety, Cannula adverse effects, Injections adverse effects, Databases, Factual, Dermal Fillers adverse effects, Dermal Fillers administration & dosage, Cosmetic Techniques adverse effects, Advisory Committees
- Abstract
Background: The growing popularity of aesthetic procedures involving fillers, biostimulators, and neurotoxins has prompted concerns about patient safety. To address these concerns, a global Safety Task Force (STF) was formed., Aims: The inaugural STF meeting prioritized vascular compromise prevention and management, guiding clinical trial design and materials for future meetings, and collecting data from experts on current safety methods., Methods: The STF was formed and consisted of 16 experts from nine different countries, with each possessing distinct expertise in various fields related to aesthetic injectables. Current safety data, protocols, knowledge gaps and future research priorities were discussed and voted upon., Results: The establishment of a global database for tracking filler-related AEs was favored by 93% of participants. Discussions revolved around the database's scope, data standardization, and whether non-medical contributors should be included. Aspiration as a safety technique garnered support from 73% of participants. Approximately 43% of participants incorporate ultrasound in their injections, with divergent opinions on its impact and potential when used as a standard of practice versus in AE management. Most physicians on the task force incorporated cannula use for some of their injections (93%). There were varying perspectives on treatments for vascular adverse events (VAE), the primary causes, and the adoption of new protocols in the field., Conclusions: The STF meeting underscored the need for a coordinated effort to address complications related to HA fillers, including VAE management and hyaluronidase protocols. Reliable treatment endpoints were evaluated, but improved measurement methods are needed. Future meetings will focus on addressing delayed complications, furthering safety in this field., (© 2024 The Author(s). Journal of Cosmetic Dermatology published by Wiley Periodicals LLC.)
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- 2024
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10. Alpinumisoflavone ameliorates H 2 O 2 -induced intracellular damages through SIRT1 activation in pre-eclampsia cell models.
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Lee W, Song G, and Bae H
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- Humans, Female, Pregnancy, Molecular Structure, Dose-Response Relationship, Drug, Cell Survival drug effects, Oxidative Stress drug effects, Structure-Activity Relationship, Apoptosis drug effects, Molecular Docking Simulation, Cells, Cultured, Sirtuin 1 metabolism, Isoflavones pharmacology, Isoflavones chemistry, Isoflavones isolation & purification, Pre-Eclampsia drug therapy, Pre-Eclampsia metabolism, Pre-Eclampsia pathology, Hydrogen Peroxide pharmacology
- Abstract
Pre-eclampsia (PE) is classified as pregnancy-specific hypertensive disease and responsible for severe fetal and maternal morbidity and mortality, which influenced an approximate 3 ∼ 8 % of all pregnancies in both developed and developing countries. However, the exact pathological mechanism underlying PE has not been elucidated and it is urgent to find innovate pharmacotherapeutic agents for PE. Recent studies have reported that a crucial part of the etiology of PE is played by placental oxidative stress. Therefore, to treat PE, a possible treatment approach is to mitigate the placental oxidative stress. Alpinumisoflavone (AIF) is a prenylated isoflavonoid originated in mandarin melon berry called Cudrania tricuspidate, and is well known for its versatile pharmacotherapeutic properties, including anti-fibrotic, anti-inflammatory, anti-tumor, and antioxidant activity. However, protective property of AIF on extravillous trophoblast (EVT) under placental oxidative stress has not been elucidated yet. Therefore, we assessed stimulatory effects of AIF on the viability, invasion, migration, mitochondria function in the representative EVT cell line, HTR-8/SVneo cell. Moreover, protective activities of AIF from H
2 O2 were confirmed, in terms of reduction in apoptosis, ROS production, and depolarization of mitochondrial membrane. Furthermore, we confirmed the direct interaction of AIF with sirtuin1 (SIRT1) using molecular docking analysis and SIRT1-mediated signaling pathways associated with the protective effects of AIF on HTR-8/SVneo cells under oxidative stress. Finally, beneficial efficacy of AIF against oxidative stress was further confirmed using BeWo cells, syncytiotrophoblast cell lines. These results suggest that AIF may ameliorate H2 O2 -induced intracellular damages through SIRT1 activation in human trophoblast cells., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Inc.)- Published
- 2024
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11. Mapping High-Risk Arteries Using Doppler Ultrasound for Forehead Contouring in Korean Patients.
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Lee W, Kim TH, and Yang EJ
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- Humans, Female, Middle Aged, Adult, Male, Republic of Korea, Temporal Arteries diagnostic imaging, Arteries diagnostic imaging, Forehead blood supply, Dermal Fillers administration & dosage, Ultrasonography, Doppler, Hyaluronic Acid administration & dosage, Cosmetic Techniques adverse effects
- Abstract
Background: Forehead flatness is common in Korean populations, and one of the most straightforward techniques for adding volume and achieving a concave forehead is injecting hyaluronic acid (HA) filler. However, definitive guidelines for this procedure are lacking, and careful attention to the arterial anatomy is required to avoid vascular complications., Objective: The authors aimed to establish guidelines for performing forehead augmentation using Doppler ultrasound to identify vasculature before HA injection., Methods and Materials: Arterial mapping of the faces of 34 patients was performed using Doppler ultrasound. Each anatomic layer (skin, subcutaneous fat, and galea aponeurotica) of the forehead with blood vessels was identified. An average volume of 2.85 mL of HA filler was injected. Postoperative complications, such as infection, hematoma, bruising, nodules, skin necrosis, and blindness, were evaluated., Results: Using Doppler ultrasound, the authors successfully traced all 3 blood vessels (supraorbital, supratrochlear, and frontal branch of the superficial temporal arteries) and avoided them during HA injection. None of the patients experienced arterial complications., Conclusion: Doppler ultrasound proves to be an effective technique for arterial mapping, enabling the identification and avoidance of the major blood vessels of the forehead before HA filler injection., (Copyright © 2024 by the American Society for Dermatologic Surgery, Inc. Published by Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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12. Self-supervised learning for denoising of multidimensional MRI data.
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Kang B, Lee W, Seo H, Heo HY, and Park H
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- Humans, Supervised Machine Learning, Deep Learning, Magnetic Resonance Imaging methods, Signal-To-Noise Ratio, Brain diagnostic imaging, Image Processing, Computer-Assisted methods, Algorithms
- Abstract
Purpose: To develop a fast denoising framework for high-dimensional MRI data based on a self-supervised learning scheme, which does not require ground truth clean image., Theory and Methods: Quantitative MRI faces limitations in SNR, because the variation of signal amplitude in a large set of images is the key mechanism for quantification. In addition, the complex non-linear signal models make the fitting process vulnerable to noise. To address these issues, we propose a fast deep-learning framework for denoising, which efficiently exploits the redundancy in multidimensional MRI data. A self-supervised model was designed to use only noisy images for training, bypassing the challenge of clean data paucity in clinical practice. For validation, we used two different datasets of simulated magnetization transfer contrast MR fingerprinting (MTC-MRF) dataset and in vivo DWI image dataset to show the generalizability., Results: The proposed method drastically improved denoising performance in the presence of mild-to-severe noise regardless of noise distributions compared to previous methods of the BM3D, tMPPCA, and Patch2self. The improvements were even pronounced in the following quantification results from the denoised images., Conclusion: The proposed MD-S2S (Multidimensional-Self2Self) denoising technique could be further applied to various multi-dimensional MRI data and improve the quantification accuracy of tissue parameter maps., (© 2024 The Author(s). Magnetic Resonance in Medicine published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine.)
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- 2024
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13. Outcome of Locking Plate Fixation Adjunctive to Intramedullary Rodding in Osteogenesis Imperfecta Patients.
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Shuhiamy NNA, Lee W, Didi FI, Song MH, Shin CH, and Cho TJ
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Background: An intramedullary rodding is the preferred fixation method in limb stabilization of OI patients. However, the intramedullary rod may not provide adequate fixation and rotational stability, especially in adolescents and adults. The incorporation of adjunctive plate fixation alongside intramedullary rodding has been introduced to enhance this stability, although its complications remain insufficiently understood. The goal of this study was to explore the outcomes of adjunctive plating in conjunction with intramedullary rodding for limb stabilization in OI patients, emphasizing the complications related to the plates during the healing phase and following plate removal., Methods: This retrospective study examined 74 limb segments from 45 patients with OI who underwent intramedullary rodding and adjunctive plating from 2008 to 2022. Criteria for inclusion comprised surgical treatment followed by a minimum of 2 years of follow-up or complication before that time point. The need for adjunctive plating arose from inadequate fixation, rotational instability, and persistent cortical gaps with intramedullary rodding alone. Medical records and follow-up radiographs were reviewed to assess the healing of the target lesion and any complications., Results: The study encompassed 30 males and 15 females, ranging in age from 4 to 38 years, with 51 femoral and 23 tibial segments receiving treatment. Union was successfully achieved in 63 cases (85.3%), with an average union time of 14.4 months. Plates were subsequently removed in 62 cases after an average duration of 18.0 months. Before union, 11 revision surgeries were performed in 4 peri-implant fractures, 1 screw pull-out, and 6 failure of union. One sustained peri-implant fracture after the union. Following the removal of plates, complications included 10 refractures at screw sites, 3 progressive angulations at the previously targeted lesions, and 1 osteomyelitis. Kaplan-Meier analysis revealed that half of the refractures occurred within 1.8 years postplate removal. The overall complication showed borderline significance (P=0.056) among age groups. All the plate-related complications occurred at the diaphyseal, unicortical screws., Conclusions: Plate fixation, when used as an adjunct to intramedullary rodding, effectively stabilizes limbs in OI patients when intramedullary rods alone are inadequate. Nevertheless, given the significant risks associated with plate-related complications, adjunctive plating should be employed selectively only in instances where the union is unlikely to be achieved with intramedullary rodding alone., Level of Evidence: Level IV-case series., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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14. Efficient Biosynthesis of Theanderose, a Potent Prebiotic, Using Amylosucrase from Deinococcus deserti .
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Kang JU, So YS, Kim G, Lee W, Seo DH, Shin H, and Yoo SH
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The study aimed to develop an efficient bioprocess for the discovery and synthesis of theanderose by using amylosucrase from Deinococcus deserti ( Dd AS). An unknown trisaccharide produced by Dd AS was detected by high-performance anion-exchange chromatography-pulsed amperometric detection and high-performance liquid chromatography-evaporative light scattering detection, purified using medium-pressure liquid chromatography, and identified as theanderose (α-d-glucopyranosyl-(1→6)-α-d-glucopyranosyl-(1→2)-β-d-fructofuranoside) through nuclear magnetic resonance and mass spectrometry. Dd AS synthesized theanderose with a 25.4% yield (174.1 g/L) using 2.0 M sucrose at 40 °C for 96 h. In an in vitro digestion model, theanderose showed a 6.5% hydrolysis rate over 16 h. Prebiotic efficacy tests confirmed that theanderose significantly enhanced the proliferation of selected Bifidobacterium strains in the culturing medium with theanderose as the main carbon source. Subsequently, fecal fermentation was performed by adding theanderose to the feces of 20 individuals of varying ages to assess its effect on the gut microbiota. Theanderose increased the relative abundance of Bifidobacteriaceae and Prevotellaceae while decreasing the population ratio of Lachnospiraceae and Ruminococcaceae . Conclusively, theanderose displayed excellent prebiotic potential when judged by low digestibility and selective growth of beneficial microbes over harmful microbes.
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- 2024
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15. Assembly of glioblastoma tumoroids and cerebral organoids: a 3D in vitro model for tumor cell invasion.
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Kim J, Kim R, Lee W, Kim GH, Jeon S, Lee YJ, Lee JS, Kim KH, Won JK, Lee W, Park K, Kim HJ, Im SW, Lee KJ, Park CK, Kim JI, and Lee JY
- Abstract
Glioblastoma (GBM) has a fatal prognosis because of its aggressive and invasive characteristics. Understanding the mechanism of invasion necessitates an elucidation of the relationship between tumor cells and the tumor microenvironment. However, there has been a scarcity of suitable models to investigate this. In this study, we established a glioblastoma-cerebral organoid assembloid (GCOA) model by co-culturing patient-derived GBM tumoroids and human cerebral organoids. Tumor cells from the tumoroids infiltrated the cerebral organoids, mimicking the invasive nature of the parental tumors. Using time-lapse imaging, various invasion patterns of cancer cells within cerebral organoids resembling a normal tissue milieu were monitored. Both single- and collective-cell invasion was captured in real-time. We also confirmed the formation of an intercellular tumor network and tumor-normal-cell interactions. Furthermore, the transcriptomic characterization of GCOAs revealed distinct features of invasive tumor cells. Overall, this study established the GCOA as a three-dimensional (3D) in vitro assembloid model to investigate invasion mechanisms and interactions between tumor cells and their microenvironment., (© 2024 The Author(s). Molecular Oncology published by John Wiley & Sons Ltd on behalf of Federation of European Biochemical Societies.)
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- 2024
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16. Dramatic improvement of drug-resistant epilepsy following cerebral infarction: a case report.
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Lee W, Kim D, Kim JM, and Kim EY
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- Humans, Male, Middle Aged, Electroencephalography, Treatment Outcome, Drug Resistant Epilepsy drug therapy, Drug Resistant Epilepsy etiology, Cerebral Infarction, Anticonvulsants therapeutic use
- Abstract
Background: An estimated 30% of patients with epilepsy experience drug-resistant epilepsy, which is the failure to control seizures despite the use of two or more antiseizure medications. Although other treatment options are considered, these alternatives often prove ineffective., Case Presentation: A 60-year-old East Asian male patient diagnosed with drug-resistant epilepsy experienced several seizures daily despite being on eight different antiseizure medications. Seizures began at age 15. He underwent epilepsy surgery at age 34, yet the seizures persisted. An electroencephalogram revealed multifocal sharp waves in the left hemisphere. Cerebral hemorrhages at ages 47, 50, and 56 were caused by head trauma during seizures. The patient became wheelchair-bound and now resides in a nursing home. At age 58, after suffering an acute cerebral infarction due to occlusion of the left internal carotid artery, his daily seizures ceased entirely. Despite remaining wheelchair-bound, he did not experience a significant decline in his quality of life. The cessation of seizures has reduced his risk of further trauma, and he has remained seizure-free for 3 years on just one antiseizure medication., Conclusion: Surgical treatments for epilepsy often fail, with insufficient resection being a leading cause of these failures. In some cases, extensive destruction from an ischemic stroke may be beneficial. Furthermore, this case suggests that infarction therapy could be a potential treatment for patients with drug-resistant epilepsy., (© 2024. The Author(s).)
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- 2024
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17. A digital, decentralized trial of exercise therapy in patients with cancer.
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Underwood WP, Michalski MG, Lee CP, Fickera GA, Chun SS, Eng SE, Liu LY, Tsai BL, Moskowitz CS, Lavery JA, Van Zee KJ, Gardner GJ, Mueller JJ, Dang CT, Ehdaie B, Laudone VP, Eastham JA, Scott JM, Boutros PC, and Jones LW
- Abstract
We developed and evaluated the Digital Platform for Exercise (DPEx): a decentralized, patient-centric approach designed to enhance all aspects of clinical investigation of exercise therapy. DPEx integrated provision of a treadmill with telemedicine and remote biospecimen collection permitting all study procedures to be conducted in patient's homes. Linked health biodevices enabled high-resolution monitoring of lifestyle and physiological response. Here we describe the rationale and development of DPEx as well as feasibility evaluation in three different cohorts of patients with cancer: a phase 0a development study among three women with post-treatment primary breast cancer; a phase 0b proof-of-concept trial of neoadjuvant exercise therapy in 13 patients with untreated solid tumors; and a phase 1a level-finding trial of neoadjuvant exercise therapy in 53 men with localized prostate cancer. Collectively, our study demonstrates the utility of a fully digital, decentralized approach to conduct clinical trials of exercise therapy in a clinical population., (© 2024. The Author(s).)
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- 2024
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18. A.S.S.E.S.S. for Facial Fillers.
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Fezza JP, Barbarino S, Woodward J, Fezza R, Tijerina JD, and Lee W
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Background: An in-depth and detailed facial assessment is critical in treating and achieving desirable dermal filler and neurotoxin results., Methods: An acronym called A.S.S.E.S.S. simplifies an often complex and overwhelming amount of data needed to assimilate when performing facial filler and neurotoxin injections. Applying this method to patients in six simple steps provides a starting point and offers a guideline to capture key details for a more comprehensive facial assessment. The A.S.S.E.S.S. acronym stands for animate, shape, side, external, symmetry, and shadows and is helpful in following a methodical approach in analyzing facial shape, profile, and natural facial curves in both static and dynamic states., Results: Following a regimented A.S.S.E.S.S. approach prior to treating filler and neurotoxin patients allows providers a straightforward guide to achieve a desirable facial shape and profile., Conclusion: This stepwise facial assessment establishes a logical and detailed approach to ensure the important aspects of facial details are appreciated in creating reliable and pleasing filler and neurotoxin results., (© 2024 The Author(s). Journal of Cosmetic Dermatology published by Wiley Periodicals LLC.)
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- 2024
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19. Synergistic effect of periodontitis and C-reactive protein levels on mortality: NHANES 2001-2004.
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Han M, Lee W, Ahn S, Kang MH, Hwang HS, Kwon S, Kim Y, Lee J, Kim DK, Lim CS, Kim YS, and Lee JP
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- Humans, Male, Female, Middle Aged, Adult, Aged, Proportional Hazards Models, United States epidemiology, Risk Factors, Periodontitis mortality, Periodontitis blood, C-Reactive Protein metabolism, C-Reactive Protein analysis, Nutrition Surveys
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Periodontitis is associated with elevated C-reactive protein (CRP) levels. Although the coexistence of periodontitis and elevated CRP levels may heighten the risk of mortality, previous studies have not confirmed their synergistic effect. Understanding this interaction is crucial for identifying potential interventions to reduce mortality risk in individuals with periodontitis. This study aimed to assess the synergistic effects of periodontitis and elevated CRP levels on mortality in 7,938 adult individuals who participated in the National Health and Nutrition Examination Study 2001-2004. The association of periodontitis status and CRP levels with mortality was assessed using a survey-weighted Cox model. The interactive effect was estimated; the synergistic effect of CRP levels and periodontitis status on mortality was assessed using the relative excess risk due to interaction (RERI). Periodontitis was diagnosed in 1,065 (13.4%) participants. Compared with the participants without periodontitis and possessing CRP levels of ≤ 0.5 mg/dL, those with periodontitis (hazard ratio [HR], 1.38) or CRP levels of > 0.5 mg/dL (HR 1.23) had higher HRs. The participants with both periodontitis and CRP levels of > 0.5 mg/dL had the highest HR of 2.01. The additive scale interactive effect of the periodontal status and CRP levels, measured using RERI 0.41 (-0.07, 0.95), was positive and nearly significant in the total population. The synergy between the periodontal status and CRP levels was more prominent in the participants aged ≥60 years than that in younger individuals. Periodontitis with high CRP levels may indicate a high mortality rate, indicating the importance of active monitoring and intensive management of periodontitis and inflammatory markers., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Han 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. Secondary Reconstruction of Panfacial Fractures With Virtual Reality Surgical Planning Using Both Pre and Postreconstruction Scans.
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Bou Zeid N, Scharf IM, Nahass GR, Yang K, Purnell CA, and Alkureishi LWT
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Late secondary reconstruction is sometimes required in patients with suboptimal primary panfacial fracture repair. At this stage, it can be difficult to discern original facial architecture due to malunion and bony remodeling. By utilizing the original postinjury CT scan to complete fracture reduction in the virtual reality (VR) planning environment, the surgeon may attempt to recreate an "ideal" facial bony anatomy for patients. This technique was completed in 2 patients presenting with facial deformity secondary to malunited panfacial fracture. Each had a cone-beam CT (CBCT) scan taken at presentation and the initial postinjury CT scans were obtained. Fracture reductions were completed in VR to recreate the preinjury anatomy. The resulting model was overlaid with current anatomy to create surgical aids. The first patient, a 23-year-old man, presented with malunion of all bones of the midface. Cutting guides were designed for the Lefort 1 segment, left zygomaticomaxillary complex (ZMC), and naso-orbito-ethmoid (NOE) osteotomies. The second patient, a 30-year-old woman, had bilateral ZMC and subcondylar fractures, midface retrusion, and malunion of parasymphyseal fracture. A 2-stage procedure was planned, including an initial Lefort I and bilateral sagittal split osteotomy with midline wedge excision. To address malar projection, a second surgery was planned using custom MEDPOR midface implants for the NOE and zygomatic regions. Both patients were discharged home, and all surgical goals and esthetic objectives were achieved., Competing Interests: The authors report no conflicts of interest., (Copyright © 2024 by Mutaz B. Habal, MD.)
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- 2024
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21. Association of holidays and the day of the week with suicide risk: multicounty, two stage, time series study.
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Lee W, Kang C, Park C, Bell ML, Armstrong B, Roye D, Hashizume M, Gasparrini A, Tobias A, Sera F, Honda Y, Urban A, Kyselý J, Íñiguez C, Ryti N, Guo Y, Tong S, de Sousa Zanotti Stagliorio Coelho M, Lavigne E, de'Donato F, Guo YL, Schwartz J, Schneider A, Breitner S, Chung Y, Kim S, Ha E, Kim H, and Kim Y
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- Humans, Time Factors, Risk Factors, Male, Female, Holidays, Suicide statistics & numerical data, Suicide psychology
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Objectives: To assess the short term temporal variations in suicide risk related to the day of the week and national holidays in multiple countries., Design: Multicountry, two stage, time series design., Setting: Data from 740 locations in 26 countries and territories, with overlapping periods between 1971 and 2019, collected from the Multi-city Multi-country Collaborative Research Network database., Participants: All suicides were registered in these locations during the study period (overall 1 701 286 cases)., Main Outcome Measures: Daily suicide mortality., Results: Mondays had peak suicide risk during weekdays (Monday-Friday) across all countries, with relative risks (reference: Wednesday) ranging from 1.02 (95% confidence interval (CI) 0.95 to 1.10) in Costa Rica to 1.17 (1.09 to 1.25) in Chile. Suicide risks were lowest on Saturdays or Sundays in many countries in North America, Asia, and Europe. However, the risk increased during weekends in South and Central American countries, Finland, and South Africa. Additionally, evidence suggested strong increases in suicide risk on New Year's day in most countries with relative risks ranging from 0.93 (95% CI 0.75 to 1.14) in Japan to 1.93 (1.31 to 2.85) in Chile, whereas the evidence on Christmas day was weak. Suicide risk was associated with a weak decrease on other national holidays, except for Central and South American countries, where the risk generally increased one or two days after these holidays., Conclusions: Suicide risk was highest on Mondays and increased on New Year's day in most countries. However, the risk of suicide on weekends and Christmas varied by country and territory. The results of this study can help to better understand the short term variations in suicide risks and define suicide prevention action plans and awareness campaigns., Competing Interests: Competing interests: All authors have completed the ICMJE uniform disclosure form at URL www.icmje.org/disclosure-of-interest/ and declare no support for the present study; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work. This study did not include plans to recruit participants and only used pre-existing datasets. All data used in this study were pre-recorded and completely de-identified., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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22. Sensitivity Analysis for Attributable Fraction in the Presence of Unmeasured Confounding.
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Sim H, Tai AS, Lee W, and Lee W
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A main goal of epidemiology is to provide an impact of an exposure on health outcomes. The attributable fraction (AF) is a widely used measure for quantifying its contribution. Various methods have been developed to estimate AF, including standardization, inverse probability of treatment weighting, and doubly robust methods. However, the validity of these methods is established based on the conditional exchangeability assumption, which cannot be tested using only observed data. To assess how vulnerable the research findings are to departures from this assumption, researchers need to conduct a sensitivity analysis. In this study, we propose novel sensitivity analysis methods for AF. Sensitivity analysis problems are formulated as optimization problems, and analytic solutions for the problem are derived. We illustrate our proposed sensitivity analysis methods with a publicly available dataset and examine how the AF of the mother's smoking status during pregnancy for low birth weight changes to the degree of unmeasured confounding., (© The Author(s) 2024. 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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- 2024
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23. Large-Scale Construction and Analysis of Amorphous Porous Polymer Network Materials.
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Park J, Lee W, and Kim J
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In recent decades, data-driven methodologies have emerged as irreplaceable tools in materials science, particularly for elucidating structure-property relationships and facilitating the discovery of novel materials. However, despite the rapid development witnessed in other domains, amorphous materials have received relatively less attention in this context. The disordered atomic structure of amorphous materials resulting from irreversible reactions between building blocks has posed a difficulty in structural modeling, leading to a lack of databases that accurately reflect the amorphous nature of these materials. In this work, a database composed of 10,237 porous polymer networks (PPNs) was constructed from self-assembly simulations, resulting in the largest database of PPNs considering their amorphous characteristics. Through the distinct differences observed in comparison with existing databases, we emphasize that carefully considering the structural disorder of PPNs is essential for accurately characterizing their chemical behaviors. Machine learning models trained on the constructed database have confirmed that the macroscopic properties of amorphous PPNs can be predicted solely from the atomic structures of their monomers, implying that the characteristics of previously unseen PPNs can be assessed without the need for additional self-assembly simulations.
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- 2024
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24. Selenium Dioxide Catalyzed Polymerization of N-doped Poly(benzodifurandione) (n-PBDF) and Its Derivatives.
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Mei J, Liu G, Hsu HH, Samal S, Lee W, Ke Z, You L, and Savoie BM
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The recent discovery of highly conductive, solution-processable, n-doped poly(benzodifurandione) (n-PBDF) marks a milestone in the development of conducting polymers. Currently, n-PBDF is prepared by either duroquinone-mediated or copper-catalyzed polymerizations, where scalability and cost-effectiveness may present challenges. Here, we report a general, scalable, and cost-effective method for n-PBDF and its derivatives, namely selenium dioxide (SeO2) catalyzed polymerization. We discovered that a catalytic amount of selenium dioxide leads to high monomer conversions (>99% by NMR). The obtained n-PBDF exhibits a consistently narrow hydrodynamic diameter distribution and its thin films show high conductivities. Furthermore, we revealed that this polymerization involves a mechanism distinct from the previously reported radical pathway. It involves successive Riley oxidation and aldol polycondensation processes. It was also found that the reduced selenium precipitates from dimethyl sulfoxide (DMSO) when the catalytic cycle is terminated, allowing for a straightforward purification process through centrifugation and filtration. This method thus eliminates the need for the costly and slow dialysis process. Finally, we demonstrated that SeO2 catalyzed polymerization is applicable to n-PBDF derivatives, proving the generality of this method., (© 2024 Wiley‐VCH GmbH.)
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- 2024
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25. Early and Late Aortic-Related Mortality and Rupture After Fenestrated-Branched Endovascular Aortic Repair of Thoracoabdominal Aortic Aneurysms: A Prospective Multicenter Cohort Study.
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Oderich GS, Huang Y, Harmsen WS, Tenorio ER, Schanzer A, Timaran CH, Schneider DB, Mendes BC, Eagleton MJ, Farber MA, Gasper WJ, Beck AW, Sweet MP, and Lee WA
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- Humans, Aged, Female, Male, Prospective Studies, Postoperative Complications mortality, Postoperative Complications etiology, Postoperative Complications epidemiology, Aged, 80 and over, Blood Vessel Prosthesis Implantation mortality, Blood Vessel Prosthesis Implantation adverse effects, Middle Aged, Time Factors, Treatment Outcome, Risk Factors, Aortic Aneurysm, Thoracoabdominal, Endovascular Aneurysm Repair, Aortic Aneurysm, Thoracic surgery, Aortic Aneurysm, Thoracic mortality, Endovascular Procedures adverse effects, Endovascular Procedures mortality, Aortic Rupture mortality, Aortic Rupture surgery, Aortic Rupture etiology
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Background: Fenestrated-branched endovascular aortic repair (FB-EVAR) has been used as a minimally invasive alternative to open surgical repair to treat patients with thoracoabdominal aortic aneurysms (TAAAs). The aim of this study was to evaluate aortic-related mortality (ARM) and aortic aneurysm rupture after FB-EVAR of TAAAs., Methods: Patients enrolled in 8 prospective, nonrandomized, physician-sponsored investigational device exemption studies between 2005 and 2020 who underwent elective FB-EVAR of asymptomatic intact TAAAs were analyzed. Primary end points were ARM, defined as any early mortality (30 days or in hospital) or late mortality from aortic rupture, dissection, organ or limb malperfusion attributable to aortic disease, complications of reinterventions, or aortic rupture. Secondary end points were early major adverse events, TAAA life-altering events (defined as death, permanent spinal cord injury, permanent dialysis, or stroke), all-cause mortality, and secondary interventions., Results: A total of 1109 patients were analyzed; 589 (53.1%) had extent I-III and 520 (46.9%) had extent IV TAAAs. Median age was 73.4 years (interquartile range, 68.1-78.3 years); 368 (33.2%) were women. Early mortality was 2.7% (n=30); congestive heart failure was associated with early mortality (odds ratio, 3.30 [95% CI, 1.22-8.02]; P =0.01). Incidence of early aortic rupture was 0.4% (n=4). Incidence of early major adverse events and TAAA life-altering events was 20.4% (n=226) and 7.7% (n=85), respectively. There were 30 late ARMs; 5-year cumulative incidence was 3.8% (95% CI, 2.6%-5.4%); older age and extent I-III TAAAs were independently associated with late ARM (each P <0.05). Fourteen late aortic ruptures occurred; 5-year cumulative incidence was 2.7% (95% CI, 1.2%-4.3%); extent I-III TAAAs were associated with late aortic rupture (hazard ratio, 5.85 [95% CI, 1.31-26.2]; P =0.02). Five-year all-cause mortality was 45.7% (95% CI, 41.7%-49.4%). Five-year cumulative incidence of secondary intervention was 40.3% (95% CI, 35.8%-44.5%)., Conclusions: ARM and aortic rupture are uncommon after elective FB-EVAR of asymptomatic intact TAAAs. Half of the ARMs occurred early, and most of the late deaths were not aortic related. Late all-cause mortality rate and the need for secondary interventions were 46% and 40%, respectively, 5 years after FB-EVAR., Registration: URL: https://www.clinicaltrials.gov; Unique identifiers: NCT02089607, NCT02050113, NCT02266719, NCT02323581, NCT00583817, NCT01654133, NCT00483249, NCT02043691, and NCT01874197., Competing Interests: Dr Oderich has received consulting fees and grants from Cook Medical, W.L. Gore, Centerline Biomedical, and GE Healthcare (all paid to Mayo Clinic and the University of Texas Health Science at Houston with no personal income). Dr Schanzer received funding from Cook Medical, Philips, and Artivion. Dr Timaran received funding from Cook Medical and W.L. Gore. Dr Schneider reports funding from Cook Medical, W.L. Gore, Endologix, and Medtronic. Dr Mendes received funding from Cook Medical, W.L. Gore, and Medtronic. Dr Farber reports funding from Cook Medical, W.L. Gore, ViTaaa, Centerline, and Getinge. Dr Beck received funding from Artivion, Cook Medical, Medtronic, W.L. Gore, and Terumo (all paid to his university). Dr Sweet received funding from Artivion. Dr Lee received funding from Terumo Aortic, W.L. Gore, and Cook Medical. The other authors report no conflicts.
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- 2024
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26. Risk Profile of Stalking in South Korea: Analyzing the First Year of Court Decisions Following Initial Legal Responses.
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Lee W, Kim S, Baek S, Woo H, and Park S
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South Korea implemented specific legislation titled the Act on Punishment of Crimes of Stalking ( APCS ) on October 21, 2021, to address the issue of stalking. This study evaluated the risks associated with stalking incidents in South Korea by reviewing and analyzing legal cases with finalized judgments within the first year of the APCS . Data were collected through a systematic search of the Korean Supreme Court's Written Judgment Management System database. We identified 193 stalking-related cases between October 21, 2021, and October 14, 2022. These cases were analyzed based on four risk profile criteria: profiles of stalkers and victims, the nature of stalker-victim relationships, motivations behind stalking, and patterns of stalking behavior. Further, we reviewed cases to which the APCS and the Criminal Act applied by analyzing stalker-victim relationships and the stalkers' underlying motivations to assess the risks associated with stalking. Approximately 16.6% of stalkers were diagnosed with mental disorders, the most common disorder being psychosis. The average age of the victims was 42.84 years, with a higher prevalence of female victims compared to male ones. Predominantly, stalkers were former intimate partners of the victims, with most cases motivated by rejection. Direct contact methods, such as physical approaches, have been observed more frequently than indirect methods, such as repeated unwanted messages, or non-contact behaviors, including surveillance and loitering. The findings provide an up-to-date overview of the under-examined criminal stalking issue in South Korea., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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27. Overlooked Ionic Contribution of a Chiral Dopant in Cholesteric Liquid Crystals.
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Shaban H, Wu PC, Jia YF, and Lee W
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This study focuses on the ionic contribution by a chiral dopant added into a nematic host for preparing cholesteric liquid crystals (CLCs). Chiral structures were designated by individually incorporating two enantiomers, R5011 and S5011, into the nematic E44 to construct right- and left-handed CLCs, respectively. Characterized by the space-charge polarization, the dielectric spectra of the CLCs were investigated in the low-frequency regime, where f ≤ 1 kHz. The role of the individual chiral dopant, R5011 or S5011, at concentrations of 0-4.0 wt.% in altering the ionic properties of the CLC material was analyzed by deducing the electrical conductivity, ion density, and ion diffusivity. Regardless of the cell structure to be antiparallel or twisted by 90°, a significant ionic response was observed in the right-handed CLCs in comparison with the left-handed counterparts, suggesting that excess ions originating from our R5011 were introduced into the mesogenic mixtures. This work alarms the potential contribution of notorious impurity ions by a chiral dopant, which is often ignored in fabricating CLCs for electro-optical applications.
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- 2024
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28. Impact of Forage Sources on Ruminal Bacteriome and Carcass Traits in Hanwoo Steers During the Late Fattening Stages.
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Kang R, Song J, Park JK, Yun S, Lee JH, Ahn JS, Yu C, Kim G, Jeong J, Oh MG, Jo W, Lee W, Tilahun M, and Park T
- Abstract
This study examined the effects of different forage sources on the ruminal bacteriome, growth performance, and carcass characteristics of Hanwoo steers during the fattening stage. In Korea, where high-concentrate feeding is common, selecting suitable forage is crucial for sustainable beef production. Fifteen 23-month-old Hanwoo steers, weighing an average of 679.27 ± 43.60 kg, were fed the following five different forage sources: oat hay (OAT), rye silage (RYE), Italian ryegrass (IRS), barley forage (BAR), and rice straw silage (RSS), alongside 1.5 kg of dry matter concentrate daily for five months. Carcass traits were evaluated post-slaughter, and rumen fluid samples were analyzed using full-length 16S rRNA gene sequencing to determine the bacteriome composition. The forage source significantly affected the alpha-diversity indices and bacteriome biomarkers linked to the feed efficiency and ruminal fermentation. Differences in the backfat thickness and meat yield index were noted, with alpha-diversity indices correlating with carcass traits. The phylum Planctomycetota, especially the family Thermoguttaceae, was linked to nitrogen fixation in high-protein diets like IRS, while the genus Limimorpha emerged as a biomarker for the meat yield. These findings highlight the importance of forage selection during late fattening to optimize beef production, considering diet and bacteriome shifts.
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- 2024
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29. Extensive Synovial Chondromatosis of the Temporomandibular Joint Extending to the Cranial Base.
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Sung CH, An SY, Park HS, Lee W, and Kim MY
- Abstract
A 42-year-old male presented to the Department of Oral and Maxillofacial Surgery with the chief complaint of pain and stiffness in the right temporomandibular joint (TMJ). The patient's height was 174 cm and his body weight was 65 kg. The patient's occupation was heavy equipment operator. According to the patient, the pain had initiated a week prior to his first visit and was exacerbated during mastication. Evaluation of the range of motion revealed extensive crepitus along the right TMJ. The active and passive range of motion were measured at 45 mm and 42 mm, respectively, indicating adequate mouth-opening capacity. Occlusion was also favorable, and no other clinical symptoms were shown intraorally.
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- 2024
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30. ASYMMETRIC LEAVES1 promotes leaf hyponasty in Arabidopsis by light-mediated auxin signaling.
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Lee N, Hwang DY, Lee HG, Hwang H, Kang HW, Lee W, Choi MG, Ahn YJ, Lim C, Kim JI, Kwon M, Kim ST, Paek NC, Cho H, Sohn KH, Seo PJ, and Song YH
- Abstract
In plants, balancing growth and environmental responses is crucial for maximizing fitness. Close proximity among plants and canopy shade, which negatively impacts reproduction, elicits morphological adjustments such as hypocotyl growth and leaf hyponasty, mainly through changes in light quality and auxin levels. However, how auxin, synthesized from a shaded leaf blade, distally induces elongation of hypocotyl and petiole cells remains to be elucidated. We demonstrated that ASYMMETRIC LEAVES1 (AS1) promotes leaf hyponasty through the regulation of auxin biosynthesis, polar auxin transport, and auxin signaling genes in Arabidopsis (Arabidopsis thaliana). AS1 overexpression leads to elongation of the abaxial petiole cells with auxin accumulation in the petiole, resulting in hyponastic growth, which is abolished by the application of an auxin transport inhibitor to the leaf blade. In addition, the as1 mutant exhibits reduced hypocotyl growth under shade conditions. We observed that AS1 protein accumulates in the nucleus in response to shade or far-red light. Chromatin immunoprecipitation analysis identified the association of AS1 with the promoters of YUCCA8 (YUC8) and INDOLE-3-ACETIC ACID INDUCIBLE 19 (IAA19). In addition, AS1 forms complexes with PHYTOCHROME INTERACTING FACTORs in the nucleus and synergistically induces YUC8 and IAA19 expression. Our findings suggest that AS1 plays a crucial role in facilitating phenotypic plasticity to the surroundings by connecting light and phytohormone action., (© The Author(s) 2024. Published by Oxford University Press on behalf of American Society of Plant Biologists. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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31. Efficacy of spiritual interventions in palliative care: An umbrella review of systematic reviews.
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Austin PD, Lee W, Keall R, and Lovell MR
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Background: Spiritual care is increasingly recognised as an essential component of care in palliative settings. Given this growing body of literature on spiritual interventions, there is a need to systematically evaluate and synthesis findings from previous systematic reviews., Aim: To systematically synthesise the available evidence from systematic reviews concerning (a) the efficacy of spiritual care interventions and (b) the extent and nature of spiritual care interventions used in specialist palliative care settings., Methods: An umbrella review of systematic reviews was conducted in accordance with PROSPERO (CRD42024455147) and followed the Joanna Briggs Institute methodology for umbrella reviews., Data Sources: Electronic databases (Ovid Medline, Embase, APA PsycINFO, Cochrane Database of Systematic Reviews, CINAHL and Web of Science) and references of accepted systematic reviews were searched for systematic reviews from inception to 2024. The AMSTAR-2 criteria was used to assess risk of bias within systematic reviews., Results: A toal of 27 reviews met the eligibility criteria and reported the effects of 14 different spiritual care interventions across 431 studies including 55,759 participants. Findings show that spiritual care interventions especially dignity therapy and life-review may be effective for improving outcomes including spiritual wellbeing, emotional symptoms, quality-of-life and physical symptoms in people receiving specialist palliative care. Under half of included reviews report follow-up data where only emotional symptoms and quality-of-life are reported in more than one review., Conclusion: Overall, spiritual care interventions have positive effects on spiritual wellbeing, quality of life and mood, compared to control conditions. Increased methodological rigour is needed to capture effect and duration of effect with spiritual care interventions at different phases of palliative care., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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32. Maternal Glycemic Status and Longitudinal Fetal Body Composition and Organ Volumes Based on Three-Dimensional Ultrasonography.
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Wagner KA, Gleason JL, Chen Z, Zhang C, Hinkle SN, He D, Lee W, Newman RB, Owen J, Skupski DW, Grobman WA, Sherman S, Tekola-Ayele F, Grewal J, and Grantz KL
- Abstract
Objective: Gestational diabetes mellitus (GDM) increases the risk of fetal overgrowth as measured by two-dimensional ultrasonography. Whether fetal three-dimensional (3D) soft tissue and organ volumes provide additional insight into fetal overgrowth is unknown., Research Design and Methods: We prospectively evaluated longitudinal 3D fetal body composition and organ volumes in a diverse US singleton pregnancy cohort (2015-2019). Women were diagnosed with GDM, impaired glucose tolerance (IGT), or normal glucose tolerance (NGT). Up to five 3D ultrasound scans measured fetal body composition and organ volumes; trajectories were modeled using linear mixed models. Overall and weekly mean differences in fetal 3D trajectories were tested across glycemic status, adjusted for covariates., Results: In this sample (n = 2,427), 5.2% of women had GDM, and 3.0% had IGT. Fetuses of women who developed GDM compared with NGT had larger fractional arm and fractional fat arm volumes from 26 to 35 weeks, smaller fractional lean arm volume from 17 to 22 weeks, and larger abdominal area from 24 to 40 weeks. Fetuses of women with IGT had similar growth patterns, which manifested later in gestation and with larger magnitudes, and had larger fractional lean arm volume. No overall differences were observed among thigh or organ volumes across glycemic status., Conclusions: Body composition differed in fetuses of GDM-complicated pregnancies, including larger arm and abdominal measures across the second and third trimesters. Patterns were similar in IGT-complicated pregnancies except that they occurred later in gestation and with larger magnitudes. Future research should explore how lifestyle and medication may alter fetal fat accumulation trajectories among hyperglycemic pregnancies., (© 2024 by the American Diabetes Association.)
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- 2024
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33. Author Correction: Shift work and non-alcoholic fatty liver disease in young, healthy workers.
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Lee Y and Lee W
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- 2024
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34. Randomized Comparison of Progression of Atherosclerotic Plaques and Calcification of Coronary Artery in Atrial Fibrillation Patients Treated With Edoxaban Versus Warfarin (The REPRESENT-AF trial).
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Ahn J, Lee YS, Lee W, Jeong B, Choi EK, Shin DG, Han SJ, and Lim HE
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- Humans, Male, Female, Aged, Computed Tomography Angiography, Coronary Angiography, Middle Aged, Coronary Vessels diagnostic imaging, Follow-Up Studies, Atrial Fibrillation drug therapy, Atrial Fibrillation complications, Thiazoles therapeutic use, Warfarin therapeutic use, Plaque, Atherosclerotic complications, Plaque, Atherosclerotic diagnostic imaging, Disease Progression, Pyridines therapeutic use, Coronary Artery Disease drug therapy, Coronary Artery Disease complications, Factor Xa Inhibitors therapeutic use, Anticoagulants therapeutic use, Vascular Calcification diagnostic imaging
- Abstract
Although the adverse effects of long-term use of vitamin K oral anticoagulant (OAC), warfarin, on the coronary vasculature are well-established, it remains unknown whether nonvitamin K oral anticoagulants play a role in the attenuation of plaque progression and coronary calcification. This study aimed to compare the changes in atherosclerotic plaques and calcification of the coronary arteries in patients with atrial fibrillation (AF) treated with edoxaban and warfarin. A total of 150 OAC-naïve patients with AF and atherosclerotic lesions on coronary computed tomography angiography (CCTA) were enrolled and randomly assigned to the edoxaban or warfarin treatment groups. All enrolled patients received rosuvastatin 10 mg and 119 patients completed the entire study protocol. A total of 12 months after the assigned OAC treatment, follow-up CCTA was performed and changes in plaque and calcium volumes of the coronary arteries were analyzed. The baseline characteristics of the 2 groups were well-balanced. The percentage of time in therapeutic range in the warfarin group was 61.1%. Compared with the baseline CCTA, there was a significant reduction in plaque volume after 12 months of OAC and rosuvastatin administration in both groups, and the extent of regression did not differ significantly between the groups. The increase in calcium volume was greater in the warfarin group than in the edoxaban group; however, the difference was not significant. In OAC-naïve patients with AF and atherosclerotic coronary lesions who were treated with moderate-intensity statin, edoxaban use did not have a positive effect on atherosclerotic plaques and coronary calcification compared with warfarin use over a 12-month follow-up period., Competing Interests: Declaration of competing interest The authors have no competing interest to declare., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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35. Advances in Muscle Research in Health and Disease.
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Lee W
- Subjects
- Humans, Animals, Muscular Diseases metabolism, Muscular Diseases pathology, Health, Muscle, Skeletal metabolism
- Abstract
Muscle tissue plays a vital role in the maintenance of overall health, contributing to essential body functions such as locomotion, respiration, blood circulation, and metabolic regulation [...].
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- 2024
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36. Free-breathing 3D cardiac extracellular volume (ECV) mapping using a linear tangent space alignment (LTSA) model.
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Lee W, Han PK, Marin T, Mounime IBG, Vafay Eslahi S, Djebra Y, Chi D, Bijari FJ, Normandin MD, El Fakhri G, and Ma C
- Abstract
Purpose: To develop a new method for free-breathing 3D extracellular volume (ECV) mapping of the whole heart at 3 T., Methods: A free-breathing 3D cardiac ECV mapping method was developed at 3 T. T
1 mapping was performed before and after contrast agent injection using a free-breathing electrocardiogram-gated inversion recovery sequence with spoiled gradient echo readout. A linear tangent space alignment model-based method was used to reconstruct high-frame-rate dynamic images from (k,t)-space data sparsely sampled along a random stack-of-stars trajectory. Joint T1 and transmit B1 estimation were performed voxel-by-voxel for pre- and post-contrast T1 mapping. To account for the time-varying T1 after contrast agent injection, a linearly time-varying T1 model was introduced for post-contrast T1 mapping. ECV maps were generated by aligning pre- and post-contrast T1 maps through affine transformation., Results: The feasibility of the proposed method was demonstrated using in vivo studies with six healthy volunteers at 3 T. We obtained 3D ECV maps at a spatial resolution of 1.9 × 1.9 × 4.5 mm3 and a FOV of 308 × 308 × 144 mm3 , with a scan time of 10.1 ± 1.4 and 10.6 ± 1.6 min before and after contrast agent injection, respectively. The ECV maps and the pre- and post-contrast T1 maps obtained by the proposed method were in good agreement with the 2D MOLLI method both qualitatively and quantitatively., Conclusion: The proposed method allows for free-breathing 3D ECV mapping of the whole heart within a practically feasible imaging time. The estimated ECV values from the proposed method were comparable to those from the existing method., (© 2024 International Society for Magnetic Resonance in Medicine.)- Published
- 2024
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37. Long-term exposure to PM2.5 and mortality: a national health insurance cohort study.
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Moon J, Kim E, Jang H, Song I, Kwon D, Kang C, Oh J, Park J, Kim A, Choi M, Cha Y, Kim H, and Lee W
- Subjects
- Humans, Male, Female, Aged, Middle Aged, Republic of Korea epidemiology, Longitudinal Studies, Air Pollutants adverse effects, Air Pollutants analysis, Cardiovascular Diseases mortality, National Health Programs statistics & numerical data, Proportional Hazards Models, Cause of Death, Mortality trends, Cohort Studies, Neoplasms mortality, Neoplasms epidemiology, Diabetes Mellitus mortality, Diabetes Mellitus epidemiology, Particulate Matter adverse effects, Particulate Matter analysis, Environmental Exposure adverse effects, Air Pollution adverse effects, Air Pollution analysis
- Abstract
Background: Previous studies with large data have been widely reported that exposure to fine particulate matter (PM2.5) is associated with all-cause mortality; however, most of these studies adopted ecological time-series designs or have included limited study areas or individuals residing in well-monitored urban areas. However, nationwide cohort studies including cause-specific mortalities with different age groups were sparse. Therefore, this study examined the association between PM2.5 and cause-specific mortality in South Korea using the nationwide cohort., Methods: A longitudinal cohort with 187 917 National Health Insurance Service-National Sample Cohort participants aged 50-79 years in enrolment between 2002 and 2019 was used. Annual average PM2.5 was collected from a machine learning-based ensemble model (a test R2 = 0.87) as an exposure. We performed a time-varying Cox regression model to examine the association between long-term PM2.5 exposure and mortality. To reduce the potential estimation bias, we adopted generalized propensity score weighting method., Results: The association with long-term PM2.5 (2-year moving average) was prominent in mortalities related to diabetes mellitus [hazard ratio (HR): 1.03 (95% CI: 1.01, 1.06)], circulatory diseases [HR: 1.02 (95% CI: 1.00, 1.03)] and cancer [HR: 1.01 (95% CI: 1.00, 1.02)]. Meanwhile, circulatory-related mortalities were associated with a longer PM2.5 exposure period (1 or 2-year lags), whereas respiratory-related mortalities were associated with current-year PM2.5 exposure. In addition, the association with PM2.5 was more evident in people aged 50-64 years than in people aged 65-79 years, especially in heart failure-related deaths., Conclusions: This study identified the hypothesis that long-term exposure to PM2.5 is associated with mortality, and the association might be different by causes of death. Our result highlights a novel vulnerable population: the middle-aged population with risk factors related to heart failure., (© The Author(s) 2024; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association.)
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- 2024
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38. Structural Analysis of Hyaluronic Acid Fillers Using Nuclear Magnetic Resonance: Implications for Quality Control and Clinical Performance.
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Lee W and Yang EJ
- Abstract
Potential disruptions in the biocompatibility of hyaluronic acid (HA) fillers can arise with mono-linked 1,4-butanediol diglycidyl ether (BDDE) or unreacted (pendant) 1,4-butanediol di-(propan-2,3-diolyl) ether. Assessing the filler's degree of modification involves evaluating improperly cross-linked BDDE. This study analyzed commercially available HA fillers using nuclear magnetic resonance (NMR), focusing on key parameters, such as the degree of modification (MoD), the cross-linker ratio (CrR), and the degree of cross-linking. We assessed thirteen commercially available HA fillers using NMR. The samples were placed in an NMR instrument, and each sample was analyzed for 26 h, including MoD and CrR assessments. MoD
1 H ranged from 17.065% to 2.239%, MoD13 C ranged from 12.567% to 1.947%, and CrR13 C ranged from 0.394 to 0.014. Significant distinctions were observed in the CrR13 C values when the MoD values of the products were similar. This study underscores the importance of considering the MoD and the CrR together to ensure optimal cross-linking and minimize the risks associated with residual BDDE impurities. Utilizing NMR for HA gel characterization provides valuable insights regarding product quality control, safety assessments, and clinical performance evaluations for esthetic interventions, contributing to filler product improvements. Further studies correlating NMR findings with real-world outcomes are essential for ensuring safety and efficacy.- Published
- 2024
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39. Microvascular invasion is associated with poor prognosis in renal cell carcinoma: a retrospective cohort study and meta-analysis.
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Xu J, Tan Y, Gao S, Lee W, Ye Y, Deng G, Huang Z, Li X, Li J, Cheong S, and Di J
- Abstract
Background: This retrospective cohort study and meta-analysis aims to explore the association between microvascular invasion (MVI) and clinicopathologiccal features, as well as survival outcomes of patients with renal cell carcinoma (RCC)., Material and Methods: The retrospective cohort study included 30 RCC patients with positive MVI and another 75 patients with negative MVI as controls. Clinicopathological features and follow-up data were compiled. The meta-analysis conducted searches on PubMed, Cochrane Library, Web of Science, Embase, and WanFang Data from the beginning to 30 September 2023, for comparative studies relevant to MVI patients. The Newcastle-Ottawa Scale and Egger Test were used to assess the risk of biases and certainty of evidence in the included studies., Results: The cohort study showed that MVI was associated with advanced primary tumor stage, high pathological grades, high tumor size, high clinical symptoms and lymph node invasion ( P <0.05 ). Kaplan-Meier analyses demonstrated MVI was associated with worse CSS rates when compared to MVI negative group ( P <0.05 ). However, in the multivariate analysis it was not presented as an independent predictor of cancer survival mortality ( P > 0.05). The meta-analysis part included 11 cohort studies. The results confirmed that patients with MVI positive had worse 12 and 60 mo CSS rates (HR
12mo = 0.86, 95%CI 0.80-0.92; HR60mo = 0.63, 95% CI 0.55-0.72; P < 0.00001). Moreover, the meta-analysis also confirmed that MVI group was associated with higher rate of advanced tumor stage, pathological grades, tumor size diameter, higher rate of clinical symptoms and lymph node invasion ( P <0.05 )., Conclusions: The presence of MVI in renal cell carcinoma patients is linked to poorer survival outcomes and worse clinicopathological features. In spite of this, it does not seem to be an independent predictor for cancer survival mortality in renal cell carcinoma., Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023470640, identifier CRD42023470640., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The reviewer JK declared a shared parent affiliation with the authors JX, SG, WL, YY, GD, ZH, XL, JL, SC, JD to the handling editor at the time of review., (Copyright © 2024 Xu, Tan, Gao, Lee, Ye, Deng, Huang, Li, Li, Cheong and Di.)- Published
- 2024
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40. RETRACTED: Lee et al. Myogenesis Effects of RGX365 to Improve Skeletal Muscle Atrophy. Nutrients 2023, 15 , 4307.
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Lee HJ, Choi HJ, Lee SA, Baek DH, Heo JB, Song GY, and Lee W
- Abstract
The journal retracts the article, "Myogenesis Effects of RGX365 to Improve Skeletal Muscle Atrophy" [...].
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- 2024
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41. Rainfall events and daily mortality across 645 global locations: two stage time series analysis.
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He C, Breitner-Busch S, Huber V, Chen K, Zhang S, Gasparrini A, Bell M, Kan H, Royé D, Armstrong B, Schwartz J, Sera F, Vicedo-Cabrera AM, Honda Y, Jaakkola JJK, Ryti N, Kyselý J, Guo Y, Tong S, de'Donato F, Michelozzi P, Coelho MSZS, Saldiva PHN, Lavigne E, Orru H, Indermitte E, Pascal M, Goodman P, Zeka A, Kim Y, Diaz MH, Arellano EEF, Overcenco A, Klompmaker J, Rao S, Palomares AD, Carrasco G, Seposo X, Pereira da Silva SDN, Madureira J, Holobaca IH, Scovronick N, Acquaotta F, Kim H, Lee W, Hashizume M, Tobias A, Íñiguez C, Forsberg B, Ragettli MS, Guo YL, Pan SC, Osorio S, Li S, Zanobetti A, Dang TN, Van Dung D, and Schneider A
- Subjects
- Humans, Global Health statistics & numerical data, Cause of Death trends, Mortality trends, Time Factors, Rain, Cardiovascular Diseases mortality, Respiratory Tract Diseases mortality
- Abstract
Objective: To examine the associations between characteristics of daily rainfall (intensity, duration, and frequency) and all cause, cardiovascular, and respiratory mortality., Design: Two stage time series analysis., Setting: 645 locations across 34 countries or regions., Population: Daily mortality data, comprising a total of 109 954 744 all cause, 31 164 161 cardiovascular, and 11 817 278 respiratory deaths from 1980 to 2020., Main Outcome Measure: Association between daily mortality and rainfall events with return periods (the expected average time between occurrences of an extreme event of a certain magnitude) of one year, two years, and five years, with a 14 day lag period. A continuous relative intensity index was used to generate intensity-response curves to estimate mortality risks at a global scale., Results: During the study period, a total of 50 913 rainfall events with a one year return period, 8362 events with a two year return period, and 3301 events with a five year return period were identified. A day of extreme rainfall with a five year return period was significantly associated with increased daily all cause, cardiovascular, and respiratory mortality, with cumulative relative risks across 0-14 lag days of 1.08 (95% confidence interval 1.05 to 1.11), 1.05 (1.02 to 1.08), and 1.29 (1.19 to 1.39), respectively. Rainfall events with a two year return period were associated with respiratory mortality only, whereas no significant associations were found for events with a one year return period. Non-linear analysis revealed protective effects (relative risk <1) with moderate-heavy rainfall events, shifting to adverse effects (relative risk >1) with extreme intensities. Additionally, mortality risks from extreme rainfall events appeared to be modified by climate type, baseline variability in rainfall, and vegetation coverage, whereas the moderating effects of population density and income level were not significant. Locations with lower variability of baseline rainfall or scarce vegetation coverage showed higher risks., Conclusion: Daily rainfall intensity is associated with varying health effects, with extreme events linked to an increasing relative risk for all cause, cardiovascular, and respiratory mortality. The observed associations varied with local climate and urban infrastructure., Competing Interests: Competing interests: All authors have completed the ICMJE uniform disclosure form at www.icmje.org/disclosure-of-interest/ and declare: Support from the Alexander von Humboldt Foundation no financial relationships with any organizations that might have an interest in the submitted work in the previous three years; no other relationships or activities that could appear to have influenced the submitted work., (© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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42. Automated calculation and reporting of vancomycin area under the concentration-time curve: a simplified single-trough concentration-based equation approach.
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Kim H-K, Jeong T-D, Ji M, Kim S, Lee W, and Chun S
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Aged, Microbial Sensitivity Tests, Vancomycin pharmacokinetics, Anti-Bacterial Agents pharmacokinetics, Anti-Bacterial Agents blood, Bayes Theorem, Drug Monitoring methods, Area Under Curve
- Abstract
Vancomycin, a crucial antibiotic for Gram-positive bacterial infections, requires therapeutic drug monitoring (TDM). Contemporary guidelines advocate for AUC-based monitoring; however, using Bayesian programs for AUC estimation poses challenges. We aimed to develop and evaluate a simplified AUC estimation equation using a steady-state trough concentration (C
trough ) value. Utilizing 1,034 TDM records from 580 general hospitalized patients at a university-affiliated hospital in Ulsan, we created an equation named SSTA that calculates the AUC by applying Ctrough , body weight, and single dose as input variables. External validation included 326 records from 163 patients at a university-affiliated hospital in Seoul (EWUSH) and literature data from 20 patients at a university-affiliated hospital in Bangkok (MUSI). It was compared with other AUC estimation models based on the Ctrough , including a linear regression model (LR), a sophisticated model based on the first-order equation (VancoPK), and a Bayesian model (BSCt). Evaluation metrics, such as median absolute percentage error (MdAPE) and the percentage of observations within ±20% error (P20), were calculated. External validation using the EWUSH data set showed that SSTA, LR, VancoPK, and BSCt had MdAPE values of 6.4, 10.1, 6.6, and 7.5% and P20 values of 87.1, 82.5, 87.7, and 83.4%, respectively. External validation using the MUSI data set showed that SSTA, LR, and VancoPK had MdAPEs of 5.2, 9.4, and 7.2%, and P20 of 95, 90, and 95%, respectively. Owing to its decent AUC prediction performance, simplicity, and convenience for automated calculation and reporting, SSTA could be used as an adjunctive tool for the AUC-based TDM., Competing Interests: The authors declare no conflict of interest.- Published
- 2024
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43. Management of Chronic Neuromuscular Respiratory Failure in the Intensive Care Unit.
- Author
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Ghanem MH, Lee W, and Lussier BL
- Abstract
In this seminar we describe the critical care management of patients with chronic neuromuscular diseases (cNMD). Determination of the acuity of the critical illness and trajectory of illness in the setting of cNMD is necessary to guide decision making. Systemic complications of critical illness, cardiac support needs, and peri-intubation considerations may be affected by underlying diagnosis. Mechanical ventilatory support, whether noninvasive or invasive, requires redefinition of the goals of ventilation on a patient-by-patient basis. Mode and approach to invasive ventilation and liberation to noninvasive ventilation versus tracheostomy have limited evidence, but potential clinical approaches are reviewed., Competing Interests: None declared., (Thieme. All rights reserved.)
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- 2024
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44. Validity and Reliability of the Korean Version of Reduced Morningness-Eveningness Questionnaire: Results From a General Population-Based Sample.
- Author
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Hwang H, Lee T, Lee W, Kim KM, Heo K, and Chu MK
- Subjects
- Humans, Surveys and Questionnaires, Female, Male, Republic of Korea, Adult, Middle Aged, Reproducibility of Results, Young Adult, Aged, Circadian Rhythm, Sleep physiology
- Abstract
Background: Chronotype refers to individual variations in diurnal preferences that manifest as everyday behaviors, including sleep patterns. Traditionally, the Horne & Östberg Morningness-Eveningness Questionnaire (MEQ), which comprises of 19 items, has been the standard for determining chronotype. However, its length makes it cumbersome for widespread application. To address this issue, the reduced MEQ (rMEQ), a concise version containing only five items from the MEQ, was developed for a more practical approach to chronotype assessment. This study aimed to evaluate the validity and reliability of Korean version of rMEQ in a sample from the general Korean population., Methods: The Korean version of the rMEQ comprises of items 1, 7, 10, 18, and 19 of the original MEQ. The validity of the rMEQ was assessed by correlating its scores with those of the MEQ and Munich Chronotype Questionnaire (MCTQ). Its reliability was determined by calculating internal consistency., Results: A total of 3,030 individuals participated in the study, yielding an average rMEQ score of 14.0 ± 3.4. There was a substantial positive correlation between the rMEQ and MEQ scores ( r = 0.859, P < 0.001). Furthermore, the rMEQ scores were significantly negatively correlated with the midpoint of sleep on free days corrected for sleep debt as measured by the MCTQ ( r = -0.388, P < 0.001), indicating a robust association with chronotype. The internal consistency of rMEQ, measured using Cronbach's alpha, was 0.609., Conclusion: This study finds the Korean version of the rMEQ to be a valid and reliable instrument for assessing chronotype in the general population., Competing Interests: The authors declare the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: MKC was a site investigator for a multicenter trial sponsored by Biohaven Pharmaceuticals, Allergan Korea, and Ildong Pharmaceutical Company. He has received lecture honoraria from Eli Lilly and Company, Handok-Teva, and Ildong Pharmaceutical Company over the past 24 months. He received grants from the Yonsei University College of Medicine (6-2021-0229) and the Korea Health Industry Development Institute (HV22C0106) and a National Research Foundation of Korea grant from the Korean Government (MSIT;2022R1A2C1091767). The other authors declare no conflicts of interest., (© 2024 The Korean Academy of Medical Sciences.)
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- 2024
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45. Sensitivity analysis for unmeasured confounding in estimating the difference in restricted mean survival time.
- Author
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Lee S, Park JH, and Lee W
- Abstract
The difference in restricted mean survival time has been increasingly used as an alternative measure to the hazard ratio in survival analysis. Although some statistical methods have been developed for estimating the difference in restricted mean survival time adjusted for measured confounders in observational studies, the impact of unmeasured confounding on the estimate has rarely been assessed. We develop a novel sensitivity analysis for the estimate of the difference in restricted mean survival time with respect to unmeasured confounding. After formulating the sensitivity analysis problem as an optimization problem, we explain how to obtain the sensitivity range of the difference in restricted mean survival time efficiently and assess its uncertainty using the percentile bootstrap confidence interval. Analytic results are provided for some important survival settings. Simulation studies show that the proposed methods perform well in various settings. We illustrate the proposed sensitivity analysis method by analyzing data from the German Breast Cancer Study Group study., Competing Interests: Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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46. Proposed Classification of Syndesmotic Soft Tissue Impingement and Its Association With Lateral Talar Cartilage Lesions.
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Yoon YK, Park KH, Shim DW, Lee W, Jang CY, Lee JW, and Han SH
- Abstract
Background: Syndesmotic impingement syndrome has been described to explain persistent lateral or anterolateral ankle pain. This condition is thought to often result from a rotational ankle injury. This study aimed to identify the type of syndesmotic impingement tissue according to arthroscopic and histologic findings and to analyze its association with lateral talar cartilage lesions., Methods: This retrospective study included 107 ankles in 105 patients who underwent arthroscopic surgery for syndesmotic impingement syndrome from January 2017 to August 2019. Histologic findings of biopsied impingement tissue were obtained in 59 ankles (55.1%) and compared with gross findings on arthroscopy. Cartilage lesions were evaluated using the International Cartilage Repair Society grading system. Risk factors associated with lateral talar cartilage injury were evaluated using multivariate logistic regression analysis., Results: Based on the histologic results, the most common pathology was fibrosis (24 ankles [22.4%]), followed by fatty degeneration (23 ankles [21.5%]), synovial hyperplasia (8 ankles [7.5%]), and inflammatory synovium (4 ankles [3.7%]). Interclass correlation coefficient was 0.841 ( P = .001) between histologic results and arthroscopic findings. Patients with fibrotic impingement tissue had on average a significantly longer duration of symptoms (12 vs 48 months, P = .021). A lateral talar dome cartilage lesion was detected in 25 ankles (23.4%). Fibrotic impingement tissue was the only factor significantly associated with lateral talar dome lesion on multivariate logistic regression analysis (odds ratio 10.04; 95% CI 1.84-54.9; P = .008)., Conclusion: Syndesmotic impingement with fibrotic tissue was often associated with cartilage lesions at the lateral talar dome. Patients with prolonged anterolateral or lateral ankle pain after a rotational ankle injury warrant careful assessment for possible syndesmotic impingement by fibrotic tissue and associated lateral talar cartilage injury., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Disclosure forms for all authors are available online.
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- 2024
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47. Case report: dynamic personalized physiological monitoring in lung cancer using wearable data.
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Bliss JW, Underwood WP, Carlson AM, Scott JM, Daly R, Li BT, Drilon A, Stetson P, Boutros PC, and Jones LW
- Abstract
Pretreatment prognostication, on-treatment monitoring, and early detection of physiological symptoms are considerable challenges in cancer. We describe the feasibility of high-resolution wearable data (steps per day, walking speed) to longitudinally profile physiological trajectories extracted from Apple Health data in three patients with lung cancer from diagnosis through cancer treatment after obtaining informed consent. We used descriptive statistics to describe our approach of building longitudinal physiological profiles. The wearable data monitoring period ranged from 58 to 135 weeks, with between 34,319 and 103,535 distinct digital physiological measures collected during this period-the equivalent to 41 measures per day/patient. Longitudinal profiling revealed that wearable data accurately captured physiological changes linked with clinical events such as surgery and hospitalizations as well as initiation (and cessation) of systemic cancer treatment in all three patients. These findings suggest that wearable devices could play a critical role in the management of lung cancer, although larger studies are needed to confirm these preliminary observations and validate their generalizability. Wearable devices hold significant promise for the development of personalized "digital biomarkers," which may enhance risk stratification and management in oncology., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Bliss, Underwood, Carlson, Scott, Daly, Li, Drilon, Stetson, Boutros and Jones.)
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- 2024
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48. Feasibility of Easy to Use and Inexpensive Three-Dimensional Printed Educational Model of Temporal Bone: Practiced Without Drilling.
- Author
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Lee SY, Jeong B, Lee W, and Park MK
- Abstract
Objective: Three-dimensional (3D) printed temporal bone model draws great attention as a promising alternative for conventional cadaveric model in education of otologic surgery. However, its high price and requirement for specialized tools hinder widespread use. We devised a simple educational model based on lattice structure to overcome these problems and compared it with a commercial model., Methods: We converted high-resolution temporal bone computed tomography images into stereolithography format, and printed it using the G005 3D printing system from CUBICON
© . In this process, the part to be drilled out was made of lattice structure. We evaluated the model by a questionnaire prepared in advance, and compared the results with those of a commercial model., Results: We created an educational 3D printed temporal bone lattice model one-tenth the cost of commercial temporal bone. Our model reproduced the important structures of the temporal bone, produced less dust, and had similar strength and grinding sensation compared to the commercial model. The surface texture and reproducibility were comparable to the commercial model. Although most of structures were remodeled more elaborately in the commercial model than our model, our model demonstrated significant potential as a cost-effective educational tool for medical students and residents., Conclusion: 3D printed temporal bone lattice model has potential for widespread use due to low cost and easy accessibility. Further improvements in the fine structures of the temporal bone are necessary to enhance its utility as an educational model., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)- Published
- 2024
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49. New Suggestion of Highly Durable Electrode Design for Ordered Mesoporous Ni-Mn Binary Transition Metal Oxide Anode Material in Lithium-Ion Batteries.
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Kim T, Kim KH, Kim H, Lee W, Choi W, Yoon J, Song L, Kim KJ, Bulakhe RN, Yoon WS, and Kim JM
- Abstract
Anode materials storing large-scale lithium ions gradually decrease electrochemical performance due to severe volume changes during cycling. Therefore, there is an urgent need to develop anode materials with high electrochemical capacity and durability, without deterioration arising due to the volume changes during the electrochemical processes. To date, mesoporous materials have received attention as anode materials due to their ability to mitigate volume expansion, offer a short pathway for Li
+ transport, and exhibit anomalous high capacity. However, the nano-frameworks of transition metal oxide collapse during conversion reactions, demanding an improvement in nano-framework structure stability. In this study, ordered mesoporous nickel manganese oxide (m-NMO) is designed as an anode material with a highly durable nanostructure. Interestingly, m-NMO showed better cycle performance and higher electrochemical capacity than those of nickel oxide and manganese oxide. Operando small-angle X-ray scattering and ex situ transmission electron microscopic results confirmed that the binary m-NMO sustained a highly durable nanostructure upon cycling, unlike the single metal oxide electrodes where the mesostructures collapsed. Ex situ X-ray absorption spectroscopy proved that nickel and manganese showed different electrochemical reaction voltages, and thus undergoes sequential conversion reactions. As a result, both elements can act as complementary nano-propping buffers to maintain stable mesostructure., (© 2024 Wiley‐VCH GmbH.)- Published
- 2024
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50. Evaluating the Ability of External Electric Fields to Accelerate Reactions in Solution.
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Aziz M, Prindle CR, Lee W, Zhang B, Schaack C, Steigerwald ML, Zandkarimi F, Nuckolls C, and Venkataraman L
- Abstract
This study investigates the catalytic effects of external electric fields (EEFs) on two reactions in solution: the Menshutkin reaction and the Chapman rearrangement. Utilizing a scanning tunneling microscope-based break-junction (STM-BJ) setup and monitoring reaction rates through high-performance liquid chromatography connected to a UV detector (HPLC-UV) and ultraperformance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-q-ToF-MS), we observed no rate enhancement for either reaction under ambient conditions. Density functional theory (DFT) calculations indicate that electric field-induced changes in reactant orientation and the minimization of activation energy are crucial factors in determining the efficacy of EEF-driven catalysis. Our findings suggest that the current experimental setups and field strengths are insufficient to catalyze these reactions, underscoring the importance of these criteria in assessing the reaction candidates.
- Published
- 2024
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