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363 results on '"Cho, Jaeyoung"'

102. Genome-wide association study of non-tuberculous mycobacterial pulmonary disease

Author

Cho, Jaeyoung, primary, Park, Kyungtaek, additional, Choi, Sun Mi, additional, Lee, Jinwoo, additional, Lee, Chang-Hoon, additional, Lee, Jung-Kyu, additional, Heo, Eun Young, additional, Kim, Deog Kyeom, additional, Lee, Yeon Joo, additional, Park, Jong Sun, additional, Cho, Young-Jae, additional, Yoon, Ho Il, additional, Lee, Jae Ho, additional, Lee, Choon-Taek, additional, Kim, Nayoung, additional, Choi, Kyu Yeong, additional, Lee, Kun Ho, additional, Sung, Joohon, additional, Won, Sungho, additional, and Yim, Jae-Joon, additional

Published
2020
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109. Poly(imide-co-siloxane) as a Thermo-Stable Binder for Thin Layer Cathode of Thermal Batteries

Author

Oh, Ilwhan, Cho, Jaeyoung, Kim, Kwansu, Ko, Jaehwan, Cheong, Haewon, Yoon, Young Soo, and Jung, Hyun Min

Subjects
endocrine system, immune system diseases, viruses, virus diseases, biochemical phenomena, metabolism, and nutrition, energy_fuel_technology
Abstract

The polymer binder, poly(imide-co-siloxane) (PIS), was synthesized and applied to form a thin cathode layer composites for a thermal battery that has an unusually high operating temperature of 450 °C. The PIS was prepared through cross-linking of the polyimide with polysiloxane. The morphology of FeS2/PIS composites showed that FeS2 particles was coated with the PIS cross-linked gel. The FeS2/PIS composites enabled to fabricate mechanically stable thin cathode layer that was 20–10% of the thickness of a conventional pellet-type cathode. The FeS2/PIS composites were stable up to 400 °C and maintained their morphology at this temperature. PIS coating layers decomposed at 450 °C and a new residue was generated, which was observed by transmission electron microscopy and the compositional change was analyzed. The FeS2/PIS composites showed enhanced thermal stability over that of FeS2 in thermogravimetric analysis. The thermal battery with the PIS polymer binder showed a 20% discharge capacity increase when compared to a conventional pellet-type cathode.

Published
2018

122. Sleep duration and health-related quality of life in Korean adults: 2007-2015 Korea National Health and Nutrition Examination Survey.

Author

Cho, Jaeyoung, Kwak, Nakwon, Choi, Sun Mi, Lee, Jinwoo, Park, Young Sik, Lee, Chang-Hoon, Lee, Sang-Min, Yoo, Chul-Gyu, Kim, Young Whan, and Han, Sung Koo

Abstract

Purpose: To evaluate the association of sleep duration with health-related quality of life (HRQOL) and examine the influence of age, sex, and common comorbidities on this association. Methods: Using appropriate survey design, we analyzed 50,181 adults who participated in the 2007–2015 Korea National Health and Nutrition Examination Survey. Participants were categorized into five groups according to self-reported sleep duration ≤ 5 (short sleeper), 6, 7, 8, and ≥ 9 h (long sleeper). HRQOL was measured with the European Quality of Life-5 Dimensions (EQ-5D) index and visual analogue scale (VAS). Results: In multiple linear regression, short sleep duration was associated with lower EQ-5D index (β = − 0.024; 95% confidence interval [CI], − 0.027 to − 0.021) and lower EQ-VAS (β = − 3.0; 95% CI, − 3.7 to − 2.3), and long sleep duration was associated with lower EQ-5D index (β = − 0.016; 95% CI, − 0.021 to − 0.011) and lower EQ-VAS (β = − 2.2; 95% CI, − 3.1 to − 1.3) compared with 7-h sleepers. Old-age (≥ 65 years old) short and long sleepers had significantly lower EQ-5D index than those of < 65 years old. When separated according to sex, men with long sleep and women with short sleep showed the lowest EQ-5D index. Short and long sleepers with hypertension, diabetes, hypercholesterolemia, cardiovascular disease, or depression showed significantly lower EQ-5D index than those without comorbidities. Conclusions: Extreme sleep duration was associated with poor HRQOL. Short and long sleepers with old age and comorbidities had significantly lower HRQOL than those without such conditions. [ABSTRACT FROM AUTHOR]

Published
2020
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123. Outcome of Regular Inhaled Treatment in GOLD A Chronic Obstructive Pulmonary Disease Patients.

Author

Cho, Jaeyoung, Lee, Chang-Hoon, Hwang, Yong-Il, Lee, Jin Hwa, Kim, Tae-Hyung, Lee, Ji-Hyun, Oh, Yeon-Mok, Yoo, Kwang Ha, Jung, Ki-Suck, and Lee, Sang-Do

Subjects
*BRONCHODILATOR agents, *COMPARATIVE studies, *CONFIDENCE intervals, *OBSTRUCTIVE lung diseases, *PROBABILITY theory, *QUESTIONNAIRES, *TREATMENT effectiveness, *DISEASE incidence, *DISEASE exacerbation, *DESCRIPTIVE statistics, *INHALATION administration, *SYMPTOMS
Abstract

Background: The 2017 Global Initiative for Chronic Obstructive Lung Disease (GOLD) recommends regular bronchodilator therapy in all group A patients with chronic obstructive pulmonary disease (COPD). Objective: The aim of this study was to evaluate whether regular inhaled treatment in group A patients with COPD improves their health outcomes, including exacerbations and symptoms. Methods: We recruited patients from 2 Korean prospective cohorts. Eligible COPD patients had a modified Medical Research Council (mMRC) dyspnea score of <2, a St. George's Respiratory Questionnaire for COPD (SGRQ-C) total score of <25, and had no more than 1 exacerbation and no hospitalizations during the previous year. Incidence rates of exacerbations and changes in symptom scores were analyzed. Results: After propensity score matching, there were 107 patient pairs, with and without regular inhaled treatment, who were followed up for mean times of 2.6 and 3.1 years, respectively. The incidence rates of exacerbations in those with and without regular treatment were not significantly different (incidence rate ratio 1.24 [95% CI 0.68 to 2.25]). Significant differences in favor of regular treatment were observed at 6 and 12 months for the SGRQ-C total scores (mean between-group difference –4.7 [95% CI –7.9 to –1.6] and –4.8 [95% CI –7.9 to –1.7], respectively). Regular treatment with a long-acting bronchodilator was also associated with significantly better scores on the SGRQ-C (mean between-group difference –5.0 [95% CI –8.6 to –1.4]) compared to no regular treatment at 12 months of follow-up. Conclusions: Regular inhaled treatment in group A patients with COPD was associated with a symptomatic benefit but not with a reduction of exacerbation rates. [ABSTRACT FROM AUTHOR]

Published
2019
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