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Choi E, Souza VC, Dillon JA, Kebreab E, Mueller ND. Comparative analysis of thermal indices for modeling cold and heat stress in US dairy systems. J Dairy Sci 2024:S0022-0302(24)00733-1. [PMID: 38608948 DOI: 10.3168/jds.2023-24412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/04/2024] [Indexed: 04/14/2024]
Abstract
Quantifying the impact of thermal stress on milk yields is essential to effectively manage present and future risks in dairy systems. Despite the existence of numerous heat indices designed to communicate stress thresholds, little information is available regarding the accuracy of different indices in estimating milk yield losses from both cold and heat stress at large spatio-temporal scales. To address this gap, we comparatively analyzed the performance of existing thermal indices in capturing US milk yield response to both cold and heat stress at the national scale. We selected four commonly used thermal indices: the Temperature and Humidity Index (THI), Black Globe Humidity Index (BGHI), Adjusted Temperature and Humidity Index (THIadj), and Comprehensive Climate Index (CCI). Using a statistical panel regression model with observational and reanalysis weather data from 1981-2020, we systematically compared the patterns of yield sensitivities and statistical performance of the four indices. We found that the US state-level milk yield variability was better explained by the THIadj and CCI, which combine the effects of temperature, humidity, wind, and solar radiation. Our analysis also reveals a continuous and nonlinear responses of milk yields to a range of cold to heat stress across all four indices. This implies that solely relying on fixed thresholds of these indices to model milk yield changes may be insufficient to capture cumulative thermal stress. Cold extremes reduced milk yields comparably to those impacted by heat extremes on the national scale. Additionally, we found large spatial variability in milk yield sensitivities, implying further limitations to the use of fixed thresholds across locations. Moreover, we found decreased yield sensitivity to thermal stress in the most recent two decades, suggesting adaptive changes in management to reduce weather-related risks.
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Affiliation(s)
- E Choi
- Department of Ecosystem Science and Sustainability & Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523.
| | - V C Souza
- Department of Animal Science, University of California, Davis, CA 95616
| | - J A Dillon
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523
| | - E Kebreab
- Department of Animal Science, University of California, Davis, CA 95616
| | - N D Mueller
- Department of Ecosystem Science and Sustainability & Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523; Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523.
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Kim SJ, Jo Y, Park SJ, Ji E, Lee JY, Choi E, Baek JY, Jang IY, Jung HW, Kim K, Ryu D, Yoo HJ, Kim BJ. Metabolomic profiles of ovariectomized mice and their associations with body composition and frailty-related parameters in postmenopausal women. J Endocrinol Invest 2024:10.1007/s40618-024-02338-x. [PMID: 38493245 DOI: 10.1007/s40618-024-02338-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/12/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Menopause, a dramatical estrogen-deficient condition, is considered the most significant milestone in women's health. PURPOSE To investigate the metabolite changes attributed to estrogen deficiency using random forest (RF)-based machine learning (ML) modeling strategy in ovariectomized (OVX) mice as well as determine the clinical relevance of selected metabolites in older women. METHODS AND RESULTS Untargeted and targeted metabolomic analyses revealed that metabolites related to TCA cycle, sphingolipids, phospholipids, fatty acids, and amino acids, were significantly changed in the plasma and/or muscle of OVX mice. Subsequent ML classifiers based on RF algorithm selected alpha-ketoglutarate (AKG), arginine, carnosine, ceramide C24, phosphatidylcholine (PC) aa C36:6, and PC ae C42:3 in plasma as well as PC aa 34:1, PC aa C34:3, PC aa C36:5, PC aa C32:1, PC aa C36:2, and sphingosine in muscle as top featured metabolites that differentiate the OVX mice from the sham-operated group. When circulating levels of AKG, arginine, and carnosine, which showed the most significant changes in OVX mice blood, were measured in postmenopausal women, higher plasma AKG levels were associated with lower bone mass, weak grip strength, poor physical performance, and increased frailty risk. CONCLUSIONS Metabolomics- and ML-based methods identified the key metabolites of blood and muscle that were significantly changed after ovariectomy in mice, and the clinical implication of several metabolites was investigated by looking at their correlation with body composition and frailty-related parameters in postmenopausal women. These findings provide crucial context for understanding the diverse physiological alterations caused by estrogen deficiency in women.
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Affiliation(s)
- S J Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Y Jo
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - S J Park
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Ji
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J Y Lee
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Choi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J-Y Baek
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - I Y Jang
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - H-W Jung
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - K Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - D Ryu
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea.
| | - H J Yoo
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
| | - B-J Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
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Kim Y, Choi E, Kim S, Byon HR. Layered transition metal oxides (LTMO) for oxygen evolution reactions and aqueous Li-ion batteries. Chem Sci 2023; 14:10644-10663. [PMID: 37829040 PMCID: PMC10566458 DOI: 10.1039/d3sc03220e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/01/2023] [Indexed: 10/14/2023] Open
Abstract
This perspective paper comprehensively explores recent electrochemical studies on layered transition metal oxides (LTMO) in aqueous media and specifically encompasses two topics: catalysis of the oxygen evolution reaction (OER) and cathodes of aqueous lithium-ion batteries (LiBs). They involve conflicting requirements; OER catalysts aim to facilitate water dissociation, while for cathodes in aqueous LiBs it is essential to suppress water dissociation. The interfacial reactions taking place at the LTMO in these two distinct systems are of particular significance. We show various strategies for designing LTMO materials for each desired aim based on an in-depth understanding of electrochemical interfacial reactions. This paper sheds light on how regulating the LTMO interface can contribute to efficient water splitting and economical energy storage, all with a single material.
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Affiliation(s)
- Yohan Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) 291, Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Eunjin Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) 291, Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Seunggu Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) 291, Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
| | - Hye Ryung Byon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) 291, Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
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Kim M, Byun SJ, Park SG, Kim B, Oh YK, Cho KH, Kim JH, Choi E. Assessment of Bladder Filling Type on Radiation Dose to Organs at Risk in MR-Guided Intracavity Brachytherapy for Cervical Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e657. [PMID: 37785948 DOI: 10.1016/j.ijrobp.2023.06.2088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In this study, we evaluated whether the classification of bladder shape affects the absorbed dose (Gy) of OARs and its geometrical position to normal organs in MR-guided intracavitary brachytherapy (ICBT). MATERIALS/METHODS In this study, 269 patients who underwent MR-guided ICBT for cervical cancer from 2016 to 2022 were included. The applicator-inserted bladder filling type (BFT) classification was divided into three types (tilted, curved, and other shapes: group E). The anatomical positional relationship between the uterus and its surroundings was measured on pre-MR images and ICBT simulation MR images. Spearman's rank correlation analysis was used for bladder volume and OAR dose according to BFT. Anatomical differences were analyzed by ANOVA by measuring the distance from the center to both bladder walls. RESULTS In the correlation analysis considering the shape of the bladder, the tilted, curved, and group E had Spearman's ρ of 0.211; -0.323, 0.412; -0.307 and -0.035; -0.209 for maximum absorbed dose (D2cc) of bladder and small bowel, respectively. It was statistically significant in the tilted type and curved type. The average left and right bladder lengths differences of the tilted type were the highest at 8.47 cm and 7.11 cm, respectively. It was a statistically significant between bladder shape and the difference in left and right bladder lengths differences (p< 0.01). CONCLUSION In this study, it was confirmed that bladder distension increased the maximum bladder dose (D2cc) and decreased the maximum bowel dose (D2cc) to the tilted type and curved type. In addition, if the left and right bladder lengths are measured in pre-MR, the degree of bladder distension can be evaluated in advance by checking the shape of the bladder in the case of the tilting type before ICBT. Based on these findings, a prospective study is needed to evaluate the effect of ICBT on cervical cancer treatment outcomes through bladder type classification.
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Affiliation(s)
- M Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - S J Byun
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - S G Park
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - B Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - Y K Oh
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - K H Cho
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - J H Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - E Choi
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
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Oh H, Shin SJ, Choi E, Yamagishi H, Ohta T, Yabuuchi N, Jung HG, Kim H, Byon HR. Anion-Induced Interfacial Liquid Layers on LiCoO 2 in Salt-in-Water Lithium-Ion Batteries. JACS Au 2023; 3:1392-1402. [PMID: 37234123 PMCID: PMC10206596 DOI: 10.1021/jacsau.3c00061] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/27/2023]
Abstract
The incompatibility of lithium intercalation electrodes with water has impeded the development of aqueous Li-ion batteries. The key challenge is protons which are generated by water dissociation and deform the electrode structures through intercalation. Distinct from previous approaches utilizing large amounts of electrolyte salts or artificial solid-protective films, we developed liquid-phase protective layers on LiCoO2 (LCO) using a moderate concentration of 0.5∼3 mol kg-1 lithium sulfate. Sulfate ion strengthened the hydrogen-bond network and easily formed ion pairs with Li+, showing strong kosmotropic and hard base characteristics. Our quantum mechanics/molecular mechanics (QM/MM) simulations revealed that sulfate ion paired with Li+ helped stabilize the LCO surface and reduced the density of free water in the interface region below the point of zero charge (PZC) potential. In addition, in situ electrochemical surface-enhanced infrared absorption spectroscopy (SEIRAS) proved the appearance of inner-sphere sulfate complexes above the PZC potential, serving as the protective layers of LCO. The role of anions in stabilizing LCO was correlated with kosmotropic strength (sulfate > nitrate > perchlorate > bistriflimide (TFSI-)) and explained better galvanostatic cyclability in LCO cells.
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Affiliation(s)
- Hyunjeong Oh
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced
Battery Center, KAIST Institute for NanoCentury, Daejeon 34141, Republic of Korea
| | - Seung-Jae Shin
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Eunjin Choi
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced
Battery Center, KAIST Institute for NanoCentury, Daejeon 34141, Republic of Korea
| | - Hirona Yamagishi
- Sychrotron
Radiation (SR) Center, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Toshiaki Ohta
- Sychrotron
Radiation (SR) Center, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Naoaki Yabuuchi
- Department
of Chemistry and Life Science, Yokohama
National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
| | - Hun-Gi Jung
- Energy
Storage Research Center, Clean Energy Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Hyungjun Kim
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hye Ryung Byon
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Advanced
Battery Center, KAIST Institute for NanoCentury, Daejeon 34141, Republic of Korea
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Choi E, Su C, Wu J, Aredo J, Neal J, Leung A, Backhus L, Marchand L, Liang S, Cheng I, Wakelee H, Han S. OA01.01 Second Primary Lung Cancer among Lung Cancer Survivors Who Never Smoked. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Choi E, Lee C, Kim S, Cho N. An Algorithm for Exchanging Target Asset Pairs using the Kidney Exchange Model. DEFENCE SCI J 2022. [DOI: 10.14429/dsj.72.18414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since chemical, biological, radiological, nuclear, and high yield explosive (CBRNE) attacks can cause catastrophic damage, it is important to detect and eliminate the means of attack at the origin. In surveillance operations, efficient allocation of friendly intelligence assets and enemy targets is critical for continuous and reliablemonitoring. In this research, we investigate a mathematical model for exchanging target–asset pairs when there are sudden changes in various operational environments. For this task, we refer to the kidney exchange model as a benchmark. In particular, the methods for constructing and solving the target–asset exchange problem in near realtime are presented. Additionally, we introduce the methodology and results for obtaining a feasible solution of the weapon target assignment problem using the exchange model. Our method can facilitate decisions in reconnaissance operations, especially when countless targets and assets are intricately intertwined in future battlefield scenarios.
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Bae N, Lee S, Choi E, Ahn H, Ahn H, Kwon S, Han K, Oh S, Lip G. Impact of mental disease on the risk of atrial fibrillation in patients with diabetes mellitus: a nationwide population-based study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Diabetes mellitus (DM) is known to increase the risk of mental disorders, which increases the health care burden in these patients. Also, DM is one of the risk factors leading to atrial fibrillation (AF), and the presence of concomitant AF and DM adds to the increased risks of stroke and death. It is uncertain whether mental disease is an independent risk factor of incident AF in patients with DM.
Purpose
To investigate whether diabetic patients with mental disease have an increased risk of AF.
Methods
Using the Korea National Health Insurance Service database, we enrolled 2,512,690 patients diagnosed with DM without AF between 2009 and 2021. Newly diagnosed AF was identified during the follow-up period. We compared the risk of AF between patients with mental disease and those without.
Results
Among the total population, 828,929 (32.99%; mean age 61.58±11.28; 56.71% female) patients were diagnosed with mental diseases (Figure 1). Anxiety (564,786 patients, 68.13%) was the most common mental disease, while depression was the second most common (313,773 patients, 37.85%). Diabetic patients with mental diseases had a higher percentage of women, hypertension, dyslipidemia, chronic kidney failure, congestive heart failure, obstructive sleep apnea, and thyroid disease. During a median 7.0 years (IQR 5.93–8.07) follow-up, 34,523 were diagnosed new-onset AF (4.66 per 1,000 person-year). In multivariate analysis, diabetic patients with mental disorders showed a higher risk of new-onset AF (HR 1.19; 95% CI 1.17–1.21; p-value <0.0001) (Figure 2). Among mental diseases, depression, insomnia, and anxiety were associated with increased risks of new-onset AF (HR 1.15; 95% CI 1.12–1.17; HR 1.15; 95% CI 1.13–1.18; and HR 1.19; 95% CI, 1.67–1.21; all p-value <0.0001, respectively), whereas bipolar disorder and schizophrenia showed non-statistically significant trends (due to small numbers). Subgroup analyses showed that younger age had significant interactions with depression, insomnia, and anxiety.
Conclusion
Mental diseases, especially depression, insomnia, and anxiety, showed an increased risk of AF in patients with DM. Awareness and prompt diagnosis and management of AF would be necessary for these high-risk populations at risk of incident AF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Bae
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - E Choi
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Kwon
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - K Han
- Soongsil University, Department of Statistics and Actuarial Science , Seoul , Korea (Republic of)
| | - S Oh
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - G Lip
- Liverpool Heart and Chest Hospital, Liverpool Centre for Cardiovascular Science, University of Liverpool , Liverpool , United Kingdom
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Shin SY, Jung M, Byeon K, Kang K, Park Y, Hwang Y, Lee S, Jin E, Roh S, Kim J, Ahn J, Lee S, Choi E, Ahn M, Lip G. External validation of the biomarker based ABCD score in atrial fibrillation patients with a non gender CHA2DS2 VASc score 0 to 1, A Korean multicenter retrospective cohort. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Patients with low to intermediate risk atrial fibrillation (AF), defined as non-gender CHA2DS2-VASc score of 0–1, are still at risk of stroke. This study verified the usefulness of ABCD score (Age [≥60 years], B-type natriuretic peptide [BNP] or N-terminal pro-BNP [≥300 pg/ml], Creatinine clearance [<50 ml/min/1.73 m2], and Dimension of the left atrium [≥45 mm]) for stroke risk stratification in non-gender CHA2DS2-VASc score 0–1.
Methods
This multi-center cohort study retrospectively analyzed AF patients with non-gender CHA2DS2-VASc score 0–1. The primary endpoint was the incidence of stroke with or without anti-thrombotic treatment (ATT). An ABCD score was also validated.
Results
Overall, 2694 patients (56.3±9.5 years; female, 726 [26.9%]) were followed-up for 4.0±2.8 years. The overall stroke rate was 0.84/100 person-years (P-Y), stratified as follows: 0.46/100P-Y for an ABCD score 0; 1.02/100P-Y for an ABCD score≥1. The ABCD score was superior to the non-gender CHA2DS2-VASc score in stroke risk stratification (C-index=0.618, P=0.015; net reclassification improvement=0.576, P=0.040; integrated differential improvement=0.033, P=0.066). ATT was prescribed in 2353 patients (86.5%), and the stroke rate was significantly lower in patients receiving non-vitamin K antagonist oral anticoagulant (NOAC) therapy and an ABCD score≥1 than in those without ATT (0.44/100P-Y versus 1.55/100 P-Y; hazard ratio=0.26, 95% confidence interval 0.11–0.63, P=0.003).
Conclusion
The biomarker-based ABCD score demonstrated improved stroke risk stratification in AF patients with non-gender CHA2DS2-VASc score 0–1. Furthermore, NOAC with an ABCD score≥1 was associated with significantly lower stroke rate in AF patients with a non-gender CHA2DS2-VASc score 0–1.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Disease Control and Prevention Agency
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Affiliation(s)
- S Y Shin
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - M Jung
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - K Byeon
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - K Kang
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - Y Park
- Gachon University Gil Medical Center , Incheon , Korea (Republic of)
| | - Y Hwang
- St. Vincent's Hospital , Suwon , Korea (Democratic People's Republic of)
| | - S Lee
- Kangbuk Samsung Hospital , Seoul , Korea (Republic of)
| | - E Jin
- Kyunghee University , Seoul , Korea (Republic of)
| | - S Roh
- Korea University Guro Hospital , Seoul , Korea (Democratic People's Republic of)
| | - J Kim
- Korea University Ansan Hospital, Cardiology , Ansan-Si , Korea (Republic of)
| | - J Ahn
- Pusan National University Hospital , Pusan , Korea (Republic of)
| | - S Lee
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - E Choi
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - M Ahn
- Wonju Severance Christian Hospital , Wonju , Korea (Republic of)
| | - G Lip
- University of Liverpool , Liverpool , United Kingdom
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Park J, Cho S, Lee K, Choi E, Jung W, Kim S, Park G, Song S, Kang C, Ma M, Yoo D, Paeng K, Ock CY. 94P Performance validation of an artificial intelligence-powered programmed death-ligand 1 (PD-L1) combined positive score analyzer in urothelial cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Dubinskaya A, Heard J, Choi E, Cohen T, Anger J, Eilber K, Scott V. Female Sexual Dysfunction Resources: Women and Healthcare Providers Need More Options. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Choi E, Xu P, El-Khatib F, Kavoussi P, Yafi F. Subcutaneous testosterone enanthate-autoinjector: Assessment of its post-market safety and efficacy profiles. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Huynh L, Huang E, Choi E, Yafi F. Is immediate preoperative blood glucose or hemoglobin A1c a risk factor for infection following penile prosthesis placement? A systematic review of literature. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Choi E, Barnard J, Horns J, Paudel N, Das R, Yafi F, Hotaling J. Acne, folliculitis and post-operative infection rates of penile prosthetic implants. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Wu W, Zhang K, Choi E, Buck D, Wang B, Adam A, Huang G, Lee I, Dong J, Wang T, Bao X. Changes of small non-coding RNAs by severe acute respiratory syndrome coronavirus 2 infection. The Journal of Immunology 2022. [DOI: 10.4049/jimmunol.208.supp.125.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
The ongoing pandemic of coronavirus disease 2019 (COVID-19), which results from the rapid spread of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is a significant global public health threat. In the context of viral infections, sncRNAs have been shown to regulate the host responses, viral replication, and host-virus interaction. Compared with other subfamilies of sncRNAs, including microRNAs (miRNAs) and Piwi-interacting RNAs (piRNAs), tRNA-derived RNA fragments (tRFs) are relatively new and emerge as a significant regulator of host-virus interactions. Using T4 PNK-RNA-seq, a modified next-generation sequencing (NGS), we found that nasopharyngeal swabs (NPS) samples from SARS-CoV-2 positive and negative subjects show a significant difference in sncRNA profiles. There are about 166 impacted sncRNAs. Among them, tRFs are the most significantly affected and almost all impacted tRFs are derived from the 5′-end of tRNAs (tRF5). Using qRT-PCR, we validated that tRF5s derived from tRNA GluCTC (tRF5-GluCTC), LysCTT (tRF5-LysCTT), ValCAC (tRF5-ValCAC), CysGCA (tRF5-CysGCA) and GlnCTG (tRF5-GlnCTG) are enhanced in NPS samples of SARS-CoV2 patients and SARS-CoV2-infected airway epithelial cells. In addition to host-derived ncRNAs, we also identified several sncRNAs derived from the virus (svRNAs), among which a svRNA derived from CoV2 genomic site 346 to 382 (sv-CoV2-346) has the highest expression. The induction of both tRFs and sv-CoV2-346 has not been reported previously, as the lack of the 3′-OH ends of these sncRNAs prevents them to be detected by routine NGS. In summary, our studies demonstrated the involvement of tRFs in COVID-19 and revealed new CoV2 svRNAs
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Affiliation(s)
- Wenzhe Wu
- 1Pediatric, University of Texas Medical Branch at Galveston
| | - Ke Zhang
- 1Pediatric, University of Texas Medical Branch at Galveston
| | - Eunjin Choi
- 1Pediatric, University of Texas Medical Branch at Galveston
| | - Darby Buck
- 1Pediatric, University of Texas Medical Branch at Galveston
| | - Binbin Wang
- 2Microbiology and Immunology, University of Texas Medical Branch at Galveston
| | - Awadalkareem Adam
- 2Microbiology and Immunology, University of Texas Medical Branch at Galveston
| | - Gengming Huang
- 3Molecular Diagnostics, University of Texas Medical Branch at Galveston
| | | | - Jianli Dong
- 5Pathology Faculty, University of Texas Medical Branch at Galveston
| | - Tian Wang
- 2Microbiology and Immunology, University of Texas Medical Branch at Galveston
| | - Xiaoyong Bao
- 1Pediatric, University of Texas Medical Branch at Galveston
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Osman M, El-Khatib F, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi F. Differences in the gut microbiome composition between men with Peyronie's Disease and a matched cohort: A pilot study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Jiang D, Barnard J, Choi E, Furr J, Lentz A, van Renterghem K, Selph P, Yafi F. Immediate salvage with inflatable penile prosthesis in an infected field: A contemporary multi-institutional cohort. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Osman M, El-Khatib F, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi F. Differences in the gut microbiome composition between men with erectile dysfunction and a matched cohort: A pilot study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Choi E, Xu P, Loeb C, El-Khatib F, Yafi F, Kavoussi P. Intramuscular testosterone cypionate vs subcutaneous testosterone enanthate: Comparing the outcomes in hypogonadal men. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Jiang D, Barnard J, Choi E, Furr J, Lentz A, van Renterghem K, Selph P, Yafi FA. Immediate Salvage with Inflatable Penile Prosthesis in an Infected Field: A Contemporary Multi-institutional Cohort. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Osman MM, El-Khatib FM, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi FA. Differences in the Gut Microbiome Composition Between Men with Erectile Dysfunction and A Matched Cohort: A Pilot Study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Choi E, Barnard J, Horns J, Paudel N, Das R, Yafi F, Hotaling J. Acne, Folliculitis and Post-Operative Infection Rates of Penile Prosthetic Implants. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Choi E, Byun E, Kwon SU, Kim N, Suh CH, Kwon H, Han Y, Kwon TW, Cho YP. Carotid Plaque Composition Assessed by CT Predicts Subsequent Cardiovascular Events among Subjects with Carotid Stenosis. AJNR Am J Neuroradiol 2021; 42:2199-2206. [PMID: 34711554 DOI: 10.3174/ajnr.a7338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 07/28/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Currently, the characteristics of carotid plaques are considered important factors for identifying subjects at high risk of stroke. This study aimed to test the hypothesis that carotid plaque composition assessed by CTA is associated with an increased risk of future major adverse cardiovascular events among asymptomatic subjects with moderate-to-severe carotid artery stenosis. MATERIALS AND METHODS This single-center, retrospective cohort study included 194 carotid plaques from 176 asymptomatic subjects with moderate-to-severe carotid artery stenosis. The association of CTA-determined plaque composition with the risk of subsequent adverse cardiovascular events was analyzed. RESULTS During a median follow-up of 41 months, the adverse cardiovascular event incidence among 194 carotid plaques was 19.6%. There were significant differences in plaque Hounsfield units (P < .001) and spotty calcium presence (P < .001) between carotid plaques from subjects with and without subsequent adverse cardiovascular events. Multivariable analysis revealed carotid plaque Hounsfield unit density (P < .001) and spotty calcium (P < .001) as independent predictors of subsequent adverse cardiovascular events. In association with moderate carotid artery stenosis, the plaque Hounsfield unit values were significantly lower among carotid plaques from subjects who experienced subsequent adverse cardiovascular events (P = .002), strokes (P = .01), and cardiovascular deaths (P = .04); the presence of spotty calcium was significantly associated with the occurrence of adverse cardiovascular events (P = .001), acute coronary syndrome (P = .01), and cardiovascular death (P = .04). CONCLUSIONS Carotid plaque Hounsfield unit density and spotty calcium were independent predictors of a greater risk of adverse cardiovascular event occurrence.
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Affiliation(s)
- E Choi
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
| | - E Byun
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
| | | | - N Kim
- Clinical Epidemiology and Biostatistics (N.K.)
| | - C H Suh
- Radiology and Research Institute of Radiology (C.H.S.), University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - H Kwon
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
| | - Y Han
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
| | - T-W Kwon
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
| | - Y-P Cho
- From the Departments of Surgery (E.C., E.B., H.K., Y.H., T.-W.K., Y.-P.C.)
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24
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Yoo Y, Park S, Choi E, Sung SH. The role of intraoperative frozen section analysis in joint arthroplasty with CD66b immunohistochemical staining. Malays J Pathol 2021; 43:405-411. [PMID: 34958062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The preoperative diagnosis of infection during joint arthroplasty is important for clinical management. However, the evaluation of polymorphonuclear leukocytes (PMNs) during frozen section analysis is sometimes difficult due to frozen artifacts. In the present study, we sought to investigate the utility of intraoperative fresh frozen section (FFS) examination for diagnosis of infection and to evaluate whether the neutrophil-specific surface marker CD66b helps to improve the diagnostic accuracy of infection. A consecutive series of 65 original frozen sections at the time of resection arthroplasty was retrospectively reviewed compared with corresponding permanent sections. The presence of PMNs was determined using intraoperative FFS and permanent sections. Furthermore, CD66b staining was performed to identify PMNs clearly. The ratio of male to female patients was 21:42. The mean age was 70 years. Postoperatively, 25 of 65 cases were histologically diagnosed with infection (25/65; 39%). The sensitivity and specificity of intraoperative FFS relative to permanent section histology were 100% (25/25) and 95% (38/40), respectively. Among 40 patients without infection, two showed false-positive results during intraoperative FFS diagnosis (2/40, 5%). In addition, on CD66b staining, six cases (9%) experienced changes in results, which altered the sensitivity and specificity of intraoperative FFS compared with permanent histology only to 87% and 87%, respectively. In conclusion, the diagnostic performance of intraoperative FFS is high and comparable to yields of permanent section histology. Therefore, intraoperative FFS is highly suitable diagnostic method for detection of infection during joint arthroplasty. And CD66b immunostaining facilitates delicate identification of PMNs, especially in equivocal cases.
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Affiliation(s)
- Y Yoo
- Ewha Womans University College of Medicine, Department of Pathology, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea
| | - S Park
- Ewha Womans University College of Medicine, Department of Pathology, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea
| | - E Choi
- Ewha Womans University College of Medicine, Department of Pathology, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea.
| | - S H Sung
- Ewha Womans University College of Medicine, Department of Pathology, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Republic of Korea
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Abstract
![]()
Smart materials can
respond to stimuli and adapt their responses
based on external cues from their environments. Such behavior requires
a way to transport energy efficiently and then convert it for use
in applications such as actuation, sensing, or signaling. Ultrasound
can carry energy safely and with low losses through complex and opaque
media. It can be localized to small regions of space and couple to
systems over a wide range of time scales. However, the same characteristics
that allow ultrasound to propagate efficiently through materials make
it difficult to convert acoustic energy into other useful forms. Recent
work across diverse fields has begun to address this challenge, demonstrating
ultrasonic effects that provide control over physical and chemical
systems with surprisingly high specificity. Here, we review recent
progress in ultrasound–matter interactions, focusing on effects
that can be incorporated as components in smart materials. These techniques
build on fundamental phenomena such as cavitation, microstreaming,
scattering, and acoustic radiation forces to enable capabilities such
as actuation, sensing, payload delivery, and the initiation of chemical
or biological processes. The diversity of emerging techniques holds
great promise for a wide range of smart capabilities supported by
ultrasound and poses interesting questions for further investigations.
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Affiliation(s)
- Athanasios G Athanassiadis
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Zhichao Ma
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Nicolas Moreno-Gomez
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany.,Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Kai Melde
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Eunjin Choi
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany.,Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Rahul Goyal
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
| | - Peer Fischer
- Micro, Nano, and Molecular Systems Group, Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany.,Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
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Wu J, Ding V, Luo S, Choi E, Hellyer J, Myall N, Henry S, Wood D, Stehr H, Ji H, Nagpal S, Hayden Gephart M, Wakelee H, Neal J, Han S. P62.02 A Predictive Model to Guide Brain MRI Surveillance in Patients With Metastatic Lung Cancer: Impact on Real World Outcomes. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Choi E, Waldbillig F, Jeong M, Li D, Goyal R, Weber P, Miernik A, Grüne B, Hein S, Suarez-Ibarrola R, Kriegmair MC, Qiu T. Soft Urinary Bladder Phantom for Endoscopic Training. Ann Biomed Eng 2021; 49:2412-2420. [PMID: 34002287 PMCID: PMC8455490 DOI: 10.1007/s10439-021-02793-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023]
Abstract
Bladder cancer (BC) is the main disease in the urinary tract with a high recurrence rate and it is diagnosed by cystoscopy (CY). To train the CY procedures, a realistic bladder phantom with correct anatomy and physiological properties is highly required. Here, we report a soft bladder phantom (FlexBlad) that mimics many important features of a human bladder. Under filling, it shows a large volume expansion of more than 300% with a tunable compliance in the range of 12.2 ± 2.8 - 32.7 ± 5.4 mL cmH2O-1 by engineering the thickness of the bladder wall. By 3D printing and multi-step molding, detailed anatomical structures are represented on the inner bladder wall, including sub-millimeter blood vessels and reconfigurable bladder tumors. Endoscopic inspection and tumor biopsy were successfully performed. A multi-center study was carried out, where two groups of urologists with different experience levels executed consecutive CYs in the phantom and filled in questionnaires. The learning curves reveal that the FlexBlad has a positive effect in the endourological training across different skill levels. The statistical results validate the usability of the phantom as a valuable educational tool, and the dynamic feature expands its use as a versatile endoscopic training platform.
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Affiliation(s)
- Eunjin Choi
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Frank Waldbillig
- Department of Urology & Urosurgery, University Medical Centre Mannheim, Faculty of Medicine, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
| | - Moonkwang Jeong
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Dandan Li
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Rahul Goyal
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Patricia Weber
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Arkadiusz Miernik
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
- Department of Urology, Faculty of Medicine, University of Freiburg - Medical Centre, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Britta Grüne
- Department of Urology & Urosurgery, University Medical Centre Mannheim, Faculty of Medicine, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
| | - Simon Hein
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
- Department of Urology, Faculty of Medicine, University of Freiburg - Medical Centre, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Rodrigo Suarez-Ibarrola
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
- Department of Urology, Faculty of Medicine, University of Freiburg - Medical Centre, Hugstetterstr. 55, 79106, Freiburg, Germany
| | - Maximilian Christian Kriegmair
- Department of Urology & Urosurgery, University Medical Centre Mannheim, Faculty of Medicine, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- RaVeNNA 4pi - Consortium of the German Federal Ministry of Education and Research (BMBF), Mannheim, Germany
| | - Tian Qiu
- Cyber Valley Research Group, Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany.
- Micro Nano and Molecular Systems Lab, Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany.
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Ellebrecht C, Choi E, Radaelli E, Payne A. 470 Engineering chimeric antigen receptor (CAR) T cells for treatment of γδ T cell lymphomas. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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29
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Jang Y, Choi E, Rhee MK, Yoon H, Park NS, Chiriboga DA. Older Korean Americans' concern about Alzheimer's disease: the role of immigration-related factors and objective and subjective cognitive status. Aging Ment Health 2021; 25:807-813. [PMID: 32003243 PMCID: PMC7392805 DOI: 10.1080/13607863.2020.1720596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 12/20/2019] [Accepted: 01/18/2020] [Indexed: 10/25/2022]
Abstract
Objectives: The present study examined the associations between immigration-related factors and objective and subjective cognitive status with older Korean Americans' concern about developing Alzheimer's Disease (AD). It was hypothesized that (1) AD concern would be associated with immigration-related factors and (2) self-rated cognitive status would mediate the relationship between cognitive performance (Mini Mental State Examination (MMSE) scores) and concern about AD.Method: Using data from the Study of Older Korean Americans (n = 2061, mean age = 73.2; 66.8% female), the direct and indirect effect models were tested.Results: Korean American immigrants with a higher level of acculturation had better cognitive performance, more positive self-ratings of cognitive status, and a lower level of concern about AD. Both poor cognitive performance and negative self-ratings of cognitive status were associated with increased concern about AD. Supporting the mediation hypothesis, the indirect effect of cognitive performance on AD concern through self-rated cognitive status was significant (bias corrected 95% confidence interval for the indirect effect = -.012, -.003).Conclusion: The mediation model not only helps us better understand the psychological mechanisms that underlie the link between cognitive status and AD concern but also highlights the potential importance of subjective perceptions about cognitive status as an avenue for interventions.
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Affiliation(s)
- Yuri Jang
- Edward R. Roybal Institute on Aging, Suzanne Dworak-Peck School of Social Work, University of Southern California, Los Angeles, California, USA
| | - E. Choi
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA
| | - M. K. Rhee
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA
| | - H. Yoon
- School of Social Work, Texas State University, San Marcos, Texas, USA
| | - N. S. Park
- School of Social Work, University of South Florida, Tampa, FL, USA
| | - D. A. Chiriboga
- Department of Child and Family Studies, University of South Florida, Tampa, FL, USA
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30
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Hsue W, Sharpe AN, Darling SL, Visser LC, Choi E, Stern JA. Aorto-left atrial fistula secondary to infective aortic endocarditis and endarteritis in a cat with valvular aortic stenosis. J Vet Cardiol 2021; 35:101-107. [PMID: 33906113 DOI: 10.1016/j.jvc.2021.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 03/11/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022]
Abstract
A cat previously diagnosed with valvular aortic stenosis developed acute respiratory distress. A new continuous heart murmur was noted on physical exam. Echocardiographic examination revealed vegetative lesions on the aortic valve and continuously shunting blood flow from the aorta into the left atrium. Despite initial treatment for left-sided congestive heart failure, the cat died suddenly. In addition to confirming aortic valve endocarditis and an acquired aorto-left atrial shunt, pathological examination identified vegetative lesions on the luminal surface of the ascending aorta. Although antemortem aerobic blood culture, 16s bacterial ribosomal DNA PCR, and Bartonella PCR failed to identify causative organisms, Escherichia coli was identified on postmortem tissue culture of the aortic lesion. This represented a unique case of primary valvular aortic stenosis with secondary infective aortic endocarditis, infective aortic endarteritis, and aorto-left atrial fistula in a cat. It highlighted potential adverse outcomes of aortic stenosis that are more commonly recognized in humans and dogs.
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Affiliation(s)
- W Hsue
- William R. Pritchard Veterinary Medical Teaching Hospital, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA.
| | - A N Sharpe
- William R. Pritchard Veterinary Medical Teaching Hospital, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA
| | - S L Darling
- William R. Pritchard Veterinary Medical Teaching Hospital, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA
| | - L C Visser
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA
| | - E Choi
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA
| | - J A Stern
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California - Davis, One Garrod Drive, Davis, CA 95616, USA
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Lee H, Hwang H, Ro Y, Kim JH, Lee K, Choi E, Bae Y, So B, Lee I. Setaria digitata was the main cause of equine neurological ataxia in Korea: 50 cases (2015-2016). J Vet Med Sci 2021; 83:869-875. [PMID: 33775991 PMCID: PMC8182315 DOI: 10.1292/jvms.20-0741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study was performed to examine and clarify the cause of hindlimb ataxia and neuropathy seen in the South Korean horse population. Fifty horses diagnosed with hindlimb ataxia and neuropathy were referred for this study. Neurological examination was performed on 47 horses while necropsy was performed in all 50 animals. The occurrence of neurological diseases increased rapidly in the summer and 47 out of 50 horses were referred after the end of July. The incidence of neurological diseases started from the southern part of Korea in July and proceeded northward in August and September. Although there was no correlation with age, Thoroughbred and Warmblood horses showed a higher incidence rate than Halla and Jeju horses. The incidence rate was 5 times higher in geldings than in mares and stallions. Of the 20 cases, 16 were diagnosed with eosinophilic meningoencephalomyelitis in 2015. The most common lesions observed in 2016 were parasitic meningoencephalomyelitis (10 cases, 33%) and eosinophilic meningomyelitis (7 cases, 23%). Histopathological analysis of the brain and spinal cord revealed nematodes of approximately 100-200 µm in diameter, microcavitation and infiltrates of eosinophils, and brown pigmented macrophage infiltrates. The nematodes were identified as Setaria digitata via DNA sequencing, performed subsequent to polymerase chain reaction using DNA isolated from formalin-fixed paraffin-embedded tissue sections of the spinal cord. These results show that aberrant migration of Setaria digitata larva in the brain and spinal cord was a major cause for neurological signs in horses.
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Affiliation(s)
- Hyunkyoung Lee
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Hyeshin Hwang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Younghye Ro
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea.,Farm Animal Clinical Training and Research Center, Institutes of Green Bio Science & Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Ji-Hyeon Kim
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Kyunghyun Lee
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Eunjin Choi
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Youchan Bae
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Byungjae So
- Pathologic Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea
| | - Inhyung Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea.,Farm Animal Clinical Training and Research Center, Institutes of Green Bio Science & Technology, Seoul National University, Pyeongchang 25354, Korea
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Choi E, Towe M, Huynh L, El-Khatib F, Yafi F, Ahlering T. 015 Predictive Ability of Free Testosterone on Sexual Function in Prostate cCncer. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Huynh L, Huang E, Choi E, El-Khatib F, Yafi F. 153 Is Immediate Preoperative Blood Glucose or Hemoglobin a1c a Risk Factor for Infection Following Penile Prosthesis Placement? A Systematic Review of Literature. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Xu P, Choi E, El-Khatib F, Kavoussi P, Yafi F. 034 Post-market Safety and Efficacy Profile of Subcutaneous Testosterone Enanthate-autoinjector. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Choi E, Xu P, Loeb C, El-Khatib F, Yafi F, Kavoussi P. 027 Comparison of Outcomes for Hypogonadal Men Treated with Intramuscular Testosterone Cypionate Versus Subcutaneous Testosterone Enanthate. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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El-Khatib F, Huynh L, Osman M, Choi E, Yafi F, Ahlering T. 158 Penile Length Shortening Following Robot-assisted Radical Prostatectomy: Impacts on Erections and Sexual Bother. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Masterson J, Zhao H, Choi E, Anger J. 124 Sex, Drugs, and Ischemic Priapism: Insights into the Culture Surrounding Recreational use of Intracavernosal Injectables in an Urban Population. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Choi E, Wiseman T, Gordon C, Betihavas V. Beyond the Biomedical Paradigm! The Biomedical, Socioeconomic and Demographic Predictors of Heart Failure Readmissions. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Choi E, Luo S, Tammemägi M, Aredo J, Marchand L, Cheng I, Wakelee H, Han S. PR01.02 Smoking Cessation After Lung Cancer Diagnosis and Risk of Second Primary Lung Cancer: The Multiethnic Cohort Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2020.10.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Choi E, El-Khatib F, Huynh L, Yafi F, Ahlering T. Climacturia and incontinence in post-radical prostatectomy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34041-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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41
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Kim B, Lee N, Lee C, Lee Y, Lee S, Hwang H, Kim E, Choi E. 213 Increased 11β-hydroxysteroid dehydrogenase type 1 contributes to the impaired barrier in aged skin. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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El-Khatib F, Huynh L, Choi E, Osman M, Yafi F, Ahlering T. Penile length shortening following robot-assisted radical prostatectomy: Impacts on erections, sexual bother, and recovery. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33796-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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43
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Choi E, Towe M, Huynh L, El-Khatib F, Yafi F, Ahlering T. Free testosterone predicts preoperative sexual function in men over 60 years of age with prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32623-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Osman M, El-Khatib F, Su H, Huynh L, Choi E, Yafi F, Ahlering T. Climacturia after robot assisted radical prostatectomy: Does pre-operative erectile dysfunction affect who recovers? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33797-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Hwang K, Dokgo K, Choi E, Burch JL, Sibeck DG, Giles BL, Hasegawa H, Fu HS, Liu Y, Wang Z, Nakamura TKM, Ma X, Fear RC, Khotyaintsev Y, Graham DB, Shi QQ, Escoubet CP, Gershman DJ, Paterson WR, Pollock CJ, Ergun RE, Torbert RB, Dorelli JC, Avanov L, Russell CT, Strangeway RJ. Magnetic Reconnection Inside a Flux Rope Induced by Kelvin-Helmholtz Vortices. J Geophys Res Space Phys 2020; 125:e2019JA027665. [PMID: 32714734 PMCID: PMC7375157 DOI: 10.1029/2019ja027665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/29/2020] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
Abstract
On 5 May 2017, MMS observed a crater-type flux rope on the dawnside tailward magnetopause with fluctuations. The boundary-normal analysis shows that the fluctuations can be attributed to nonlinear Kelvin-Helmholtz (KH) waves. Reconnection signatures such as flow reversals and Joule dissipation were identified at the leading and trailing edges of the flux rope. In particular, strong northward electron jets observed at the trailing edge indicated midlatitude reconnection associated with the 3-D structure of the KH vortex. The scale size of the flux rope, together with reconnection signatures, strongly supports the interpretation that the flux rope was generated locally by KH vortex-induced reconnection. The center of the flux rope also displayed signatures of guide-field reconnection (out-of-plane electron jets, parallel electron heating, and Joule dissipation). These signatures indicate that an interface between two interlinked flux tubes was undergoing interaction, causing a local magnetic depression, resulting in an M-shaped crater flux rope, as supported by reconstruction.
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Affiliation(s)
- K.‐J. Hwang
- Southwest Research InstituteSan AntonioTXUSA
| | - K. Dokgo
- Southwest Research InstituteSan AntonioTXUSA
| | - E. Choi
- Southwest Research InstituteSan AntonioTXUSA
| | - J. L. Burch
- Southwest Research InstituteSan AntonioTXUSA
| | | | - B. L. Giles
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - H. Hasegawa
- Institute of Space and Astronautical ScienceJapan Aerospace Exploration AgencySagamiharaJapan
| | - H. S. Fu
- School of Science and EnvironmentBeihang UniversityBeijingChina
| | - Y. Liu
- School of Science and EnvironmentBeihang UniversityBeijingChina
| | - Z. Wang
- School of Science and EnvironmentBeihang UniversityBeijingChina
| | | | - X. Ma
- Physical Sciences DepartmentEmbry‐Riddle Aeronautical UniversityDaytona BeachFLUSA
| | - R. C. Fear
- School of Physics and AstronomyUniversity of SouthamptonSouthamptonUK
| | | | | | - Q. Q. Shi
- School of Earth and Space SciencesPeking UniversityPekingChina
| | - C. P. Escoubet
- European Space Research and Technology CentreNoordwijkthe Netherlands
| | | | | | | | - R. E. Ergun
- Laboratory for Atmospheric and Space PhysicsUniversity of Colorado at BoulderBoulderCOUSA
| | - R. B. Torbert
- Space Science CenterUniversity of New HampshireDurhamNHUSA
| | | | - L. Avanov
- NASA Goddard Space Flight CenterGreenbeltMDUSA
- The Goddard Planetary Heliophysics InstituteUniversity of Maryland, Baltimore CountyBaltimoreMDUSA
| | - C. T. Russell
- Institute of Geophysics and Planetary PhysicsUniversity of California, Los AngelesLos AngelesCAUSA
| | - R. J. Strangeway
- Institute of Geophysics and Planetary PhysicsUniversity of California, Los AngelesLos AngelesCAUSA
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Nelson WL, Chemey AT, Hertz M, Choi E, Graf DE, Latturner S, Albrecht-Schmitt TE, Wei K, Baumbach RE. Superconductivity in a uranium containing high entropy alloy. Sci Rep 2020; 10:4717. [PMID: 32170108 PMCID: PMC7070041 DOI: 10.1038/s41598-020-61666-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/21/2020] [Indexed: 12/01/2022] Open
Abstract
High entropy alloys (HEA) are an unusual class of materials where mixtures of elements are stochastically arrayed on a simple crystalline lattice. These systems exhibit remarkable functionality, often along several distinct axes: e.g., the examples [TaNb]1-x(TiZrHf)x are high strength and damage resistant refractory metals that also exhibit superconductivity with large upper critical fields. Here we report the discovery of an f-electron containing HEA, [TaNb]0.31(TiUHf)0.69, which is the first to include an actinide ion. Similar to the Zr-analogue, this material crystallizes in a body-centered cubic lattice with the lattice constant a = 3.41(1) Å and exhibits phonon mediated superconductivity with a transition temperatures Tc ≈ 3.2 K and upper critical fields Hc2 ≈ 6.4 T. These results expand this class of materials to include actinide elements, shows that superconductivity is robust in this sub-group, and opens the path towards leveraging HEAs as functional waste forms for a variety of radioisotopes.
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Affiliation(s)
- W L Nelson
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL, 32306, USA
| | - A T Chemey
- Department of Chemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - M Hertz
- Department of Chemistry, Florida State University, Tallahassee, FL, 32306, USA
| | - E Choi
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - D E Graf
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - S Latturner
- Department of Chemistry, Florida State University, Tallahassee, FL, 32306, USA
| | | | - K Wei
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - R E Baumbach
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA.
- Department of Physics, Florida State University, Tallahassee, FL, 32306, USA.
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Li D, Suarez-Ibarrola R, Choi E, Jeong M, Gratzke C, Miernik A, Fischer P, Qiu T. Soft Phantom for the Training of Renal Calculi Diagnostics and Lithotripsy. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:3716-3719. [PMID: 31946682 DOI: 10.1109/embc.2019.8856426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Organ models are important for medical training and surgical planning. With the fast development of additive fabrication technologies, including 3D printing, the fabrication of 3D organ phantoms with precise anatomical features becomes possible. Here, we develop the first high-resolution kidney phantom based on soft material assembly, by combining 3D printing and polymer molding techniques. The phantom exhibits both the detailed anatomy of a human kidney and the elasticity of soft tissues. The phantom assembly can be separated into two parts on the coronal plane, thus large renal calculi are readily placed at any desired location of the calyx. With our sealing method, the assembled phantom withstands a hydraulic pressure that is four times the normal intrarenal pressure, thus it allows the simulation of medical procedures under realistic pressure conditions. The medical diagnostics of the renal calculi is performed by multiple imaging modalities, including X-ray, ultrasound imaging and endoscopy. The endoscopic lithotripsy is also successfully performed on the phantom. The use of a multifunctional soft phantom assembly thus shows great promise for the simulation of minimally invasive medical procedures under realistic conditions.
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Lee KH, Ahn BS, Cha D, Jang WW, Choi E, Park S, Park JH, Oh J, Jung DE, Park H, Park JH, Suh Y, Jin D, Lee S, Jang YH, Yoon T, Park MK, Seong Y, Pyo J, Yang S, Kwon Y, Jung H, Lim CK, Hong JB, Park Y, Choi E, Shin JI, Kronbichler A. Understanding the immunopathogenesis of autoimmune diseases by animal studies using gene modulation: A comprehensive review. Autoimmun Rev 2020; 19:102469. [PMID: 31918027 DOI: 10.1016/j.autrev.2020.102469] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/20/2019] [Indexed: 12/21/2022]
Abstract
Autoimmune diseases are clinical syndromes that result from pathogenic inflammatory responses driven by inadequate immune activation by T- and B-cells. Although the exact mechanisms of autoimmune diseases are still elusive, genetic factors also play an important role in the pathogenesis. Recently, with the advancement of understanding of the immunological and molecular basis of autoimmune diseases, gene modulation has become a potential approach for the tailored treatment of autoimmune disorders. Gene modulation can be applied to regulate the levels of interleukins (IL), tumor necrosis factor (TNF), cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), interferon-γ and other inflammatory cytokines by inhibiting these cytokine expressions using short interfering ribonucleic acid (siRNA) or by inhibiting cytokine signaling using small molecules. In addition, gene modulation delivering anti-inflammatory cytokines or cytokine antagonists showed effectiveness in regulating autoimmunity. In this review, we summarize the potential target genes for gene or immunomodulation in autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel diseases (IBD) and multiple sclerosis (MS). This article will give a new perspective on understanding immunopathogenesis of autoimmune diseases not only in animals but also in human. Emerging approaches to investigate cytokine regulation through gene modulation may be a potential approach for the tailored immunomodulation of some autoimmune diseases near in the future.
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Affiliation(s)
- Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byung Soo Ahn
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dohyeon Cha
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Won Woo Jang
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eugene Choi
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soohyun Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jun Hyeong Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junseok Oh
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Da Eun Jung
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heeryun Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ju Ha Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngsong Suh
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dongwan Jin
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Siyeon Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-Hwan Jang
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Tehwook Yoon
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min-Kyu Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoonje Seong
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jihoon Pyo
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sunmo Yang
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngin Kwon
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyunjean Jung
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chae Kwang Lim
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jun Beom Hong
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeoeun Park
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eunjin Choi
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea.
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
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Lee K, Kim J, Kim Y, Sohn H, So B, Choi E. Histopathological and Aetiological Diagnosis in Brain Tissues from Cattle with Neurological Signs in Korea, 2008–2018. J Comp Pathol 2020. [DOI: 10.1016/j.jcpa.2019.10.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kim D, Choi E, Lee C, Choi Y, Kim H, Yu T, Piao Y. Highly sensitive and selective visual detection of Cr(VI) ions based on etching of silver-coated gold nanorods. Nano Converg 2019; 6:34. [PMID: 31641881 PMCID: PMC6805837 DOI: 10.1186/s40580-019-0206-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 10/10/2019] [Indexed: 06/01/2023]
Abstract
We report a visual detection of Cr(VI) ions using silver-coated gold nanorods (AuNR@Ag) as sensing probes. Au NRs were prepared by a seed-mediated growth process and AuNR@Ag nanostructures were synthesized by growing Ag nanoshells on Au NRs. Successful coating of Ag nanoshells on the surface of Au NRs was demonstrated with TEM, EDS, and UV-vis spectrometer. By increasing the overall amount of the deposited Ag on Au NRs, the localized surface plasmon resonance (LSPR) band was significantly blue-shifted, which allowed tuning across the visible spectrum. The sensing mechanism relies on the redox reaction between Cr(VI) ions and Ag nanoshells on Au NRs. As the concentration of Cr(VI) ions increased, more significant red-shift of the longitudinal peak and intensity decrease of the transverse peak could be observed using UV-vis spectrometer. Several parameters such as concentration of CTAB, thickness of the Ag nanoshells and pH of the sample were carefully optimized to determine Cr(VI) ions. Under optimized condition, this method showed a low detection limit of 0.4 μM and high selectivity towards Cr(VI) over other metal ions, and the detection range of Cr(VI) was tuned by controlling thickness of the Ag nanoshells. From multiple evaluations in real sample, it is clear that this method is a promising Cr(VI) ion colorimetric sensor with rapid, sensitive, and selective sensing ability.
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Affiliation(s)
- Dasom Kim
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea
| | - Eunjin Choi
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea
| | - Chaedong Lee
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea
| | - Yejung Choi
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea
| | - Hoonsub Kim
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea
| | - Taekyung Yu
- Department of Chemical Engineering, College of Engineering, Kyung Hee University, Youngin, 17104, South Korea.
| | - Yuanzhe Piao
- Program in Nano Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Suwon, 16229, South Korea.
- Advanced Institutes of Convergence Technology, Suwon, 16229, South Korea.
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