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Lee KM, Ahn S, Park E, Kim M. Low-Loss Pogo Pin Probe Card with a Coupling Isolation Structure up to 50 GHz. Sensors (Basel) 2023; 23:5420. [PMID: 37420587 DOI: 10.3390/s23125420] [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] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/16/2023] [Accepted: 06/05/2023] [Indexed: 07/09/2023]
Abstract
A design for a millimeter wave RF probe card that removes resonance is proposed. The designed probe card optimizes the position of the ground surface and the signal pogo pins to resolve the resonance and signal loss issues that occur when connecting a dielectric socket and a PCB. At millimeter wave frequencies, the height of the dielectric socket and pogo pin matches the length of half a wavelength, allowing the socket to act as a resonator. When the leakage signal from the PCB line is coupled to the 2.9 mm high socket with pogo pins, resonance at a frequency of 28 GHz is generated. The probe card uses the ground plane as a shielding structure to minimize this resonance and radiation loss. The importance of the signal pin location is verified via measurements in order to address the discontinuity caused by field polarity switching. A probe card fabricated using the proposed technique exhibits an insertion loss performance of -8 dB up to 50 GHz and eliminates resonance. A signal with an insertion loss of -3.1 dB can be transmitted to a system-on-chip in a practical chip test.
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Affiliation(s)
- K M Lee
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - S Ahn
- Samsung Electronics Co., Ltd., Suwon 16677, Republic of Korea
| | - E Park
- Samsung Electronics Co., Ltd., Suwon 16677, Republic of Korea
| | - M Kim
- School of Electrical Engineering, Korea University, Seoul 02841, Republic of Korea
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Park E, Kim Y, Lee A, Kim J, Kong H. Study on the Global Sustainability of the Korean Construction Industry Based on the GRI Standards. Int J Environ Res Public Health 2023; 20:4231. [PMID: 36901242 PMCID: PMC10001823 DOI: 10.3390/ijerph20054231] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/19/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
This study began with the increasing importance of ESG through sustainable management evaluation across all industries, predicting market demand through the ESG management paradigm and financial environment changes in the global industry, and establishing international strategies for the construction industry. Compared to other industries, the construction industry is in the early stages of ESG formation, and it is unclear how to expand its base by establishing evaluation system standards such as innovation of individual services, interaction of social capital, and definition of stakeholders. Currently, some large construction companies in the construction industry are publishing sustainability management reports at the group level, but given the recently strengthened global sustainability of ESG by GRI Standards, efficient analysis of global construction markets and strategic orders are needed. Therefore, this study focuses on assessing the sustainability strategies and directions of the construction industry from an ESG perspective. To this end, sustainability issues and insights, as well as global issues in Korea and the worldwide construction sector, were analyzed. The analysis showed that global construction companies were highly interested in business management approaches, such as safety and health, as critical issues regarding the construction industry's sustainability strategy. In contrast, South Korean construction companies prioritize business values such as value creation, fair trade, and win-win. Both global and South Korean construction companies have been working on greenhouse gas reduction and energy sustainability. Regarding other issues, cultivating construction specialists, enhancing the job training system, and limiting serious accidents and safety mishaps were all significant from a social standpoint among South Korean construction companies. Conversely, global construction companies appeared to focus on issues related to ethical and environmental management from an organizational standpoint.
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Affiliation(s)
- Eunsoo Park
- Department of Architecture, Sahmyook University, Seoul 01795, Republic of Korea
| | - Younghyun Kim
- Department of Construction Policy Research, Korea Institute of Civil Engineering and Building Technology, Goyang-si 10223, Republic of Korea
| | - Anyong Lee
- Department of Smart Factory, Korea Polytechnics, Incheon 21417, Republic of Korea
| | - Jieun Kim
- Department of Spatial Culture Design, Kookmin University, Seoul 02707, Republic of Korea
| | - Hyunseok Kong
- College of Animal Biotechnology & Resource, Sahmyook University, Seoul 01795, Republic of Korea
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Park E, Kim YS, Faqeerzada MA, Kim MS, Baek I, Cho BK. Hyperspectral reflectance imaging for nondestructive evaluation of root rot in Korean ginseng ( Panax ginseng Meyer). Front Plant Sci 2023; 14:1109060. [PMID: 36818876 PMCID: PMC9930644 DOI: 10.3389/fpls.2023.1109060] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Root rot of Panax ginseng caused by Cylindrocarpon destructans, a soil-borne fungus is typically diagnosed by frequently checking the ginseng plants or by evaluating soil pathogens in a farm, which is a time- and cost-intensive process. Because this disease causes huge economic losses to ginseng farmers, it is important to develop reliable and non-destructive techniques for early disease detection. In this study, we developed a non-destructive method for the early detection of root rot. For this, we used crop phenotyping and analyzed biochemical information collected using the HSI technique. Soil infected with root rot was divided into sterilized and infected groups and seeded with 1-year-old ginseng plants. HSI data were collected four times during weeks 7-10 after sowing. The spectral data were analyzed and the main wavelengths were extracted using partial least squares discriminant analysis. The average model accuracy was 84% in the visible/near-infrared region (29 main wavelengths) and 95% in the short-wave infrared (19 main wavelengths). These results indicated that root rot caused a decrease in nutrient absorption, leading to a decline in photosynthetic activity and the levels of carotenoids, starch, and sucrose. Wavelengths related to phenolic compounds can also be utilized for the early prediction of root rot. The technique presented in this study can be used for the early and timely detection of root rot in ginseng in a non-destructive manner.
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Affiliation(s)
- Eunsoo Park
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Yun-Soo Kim
- R&D Headquarters, Korea Ginseng Corporation, Yuseong, Daejeon, Republic of Korea
| | - Mohammad Akbar Faqeerzada
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon, Republic of Korea
| | - Moon S. Kim
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States
| | - Insuck Baek
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States
| | - Byoung-Kwan Cho
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon, Republic of Korea
- Department of Smart Agricultural System, College of Agricultural and Life Science, Chungnam National University, Daejeon, Republic of Korea
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Paprcka S, Sridhar S, Goshayeshi A, Park E, Liu S, Flores R, Rocha L, Miles D, Lamani M, Cho S, Wang N, Guan Y, Chandrasekar S, Kushwaha R, Jafri S, Kaplan A, Stagnaro E, Seitz L, Kline J, Fernandez-Salas E. AB801 is a potent and selective AXL inhibitor that demonstrates significant anti-tumor activity in combination with standard of care therapeutics. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01093-0] [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: 11/03/2022]
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Hong D, Shergill A, Bazhenova L, Cho B, Heist R, Moreno V, Falchook G, Nagasaka M, Cassier P, Besse B, Kim D, Yoon S, Le X, Zhao T, Atwal S, Park E, Lee J. Preliminary interim data of elzovantinib (TPX-0022), a novel inhibitor of MET/SRC/CSF1R, in patients with advanced solid tumors harboring genetic alterations in MET: Update from the Phase 1 SHIELD-1 trial. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00992-3] [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: 11/30/2022]
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Schmidt J, Pisarczyk K, Leff R, Palaniswamy K, Park E, Long L. AB1279 POOR QUALITY OF LIFE AND REDUCED WORK PRODUCTIVITY IN EUROPEAN PATIENTS WITH DERMATOMYOSITIS AND POLYMYOSITIS: FINDINGS FROM A SYSTEMATIC LITERATURE REVIEW. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1056] [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: 11/03/2022]
Abstract
BackgroundDermatomyositis (DM) and polymyositis (PM) are rare heterogenous systemic autoimmune disorders of the skin, muscles, and other organs with few effective treatment options available. They are described as devastating diseases but the full impact on patients’ lives in Europe is not well understood.ObjectivesTo systematically review and summarize evidence on humanistic burden of disease in patients with DM and PM in Europe to better understand patient-relevant aspects of disease and key domains of life impacted by DM and PM in the European setting.MethodsA systematic literature review (SLR) was conducted in MEDLINE and Embase databases to identify studies in children and adults with DM and PM, published in the English language between Jan 1, 2011, and Apr 28, 2021. Only primary studies enrolling 10 or more patients were included, irrespective of country or region. Each eligible article was independently reviewed by two reviewers. The title and study abstracts were reviewed to assess eligibility for full-text review. The topics of interest were clinical, humanistic, and economic burden of disease, as well as current management and unmet needs in DM and PM. Information on geographic scope was extracted from the papers of included studies. The current abstract summarizes SLR results on humanistic burden of DM and PM in European patients.ResultsA total of 2,967 non-duplicated publications were retrieved from medical databases and analyzed against pre-defined study selection criteria. There were 2,574 records excluded at title and abstract screening. Remaining 393 records were analyzed in the full text with 208 papers considered relevant. Additional 21 papers were identified from searching reference list of relevant studies and conference proceedings. In total, 222 studies described in 229 publications were included in data abstraction. Among 43 studies conducted across 14 European countries, 12 studies evaluated health-related quality of life (HRQoL) and work productivity in patients with DM and PM. In 6 studies, patients received standard of care therapy. Six studies enrolled adults with DM and PM and 6 were conducted in patients with juvenile onset of DM. There were 6 cross-sectional analyses, 4 longitudinal cohort studies, 2 case-control studies, with sample size ranging from 11 to 246 patients. Adults with DM and PM had significantly worse HRQoL across multiple domains of 36-Item Short Form Survey (SF-36) compared to controls from general population, with a strong negative impact of muscle weakness on physical functioning. Patients reported high difficulties in performing leisure time activities, moving around and work as indicated by median scores of 4-5 points in a 7-point Myositis Activity Profile (MAP). Reduced grip force in DM and PM adults was significantly associated with worse performance in domestic activities in the MAP assessment (p<0.05). In women with DM and PM, poor grip force additionally impacted vitality and mental health as measured by SF-36 (p<0.05). There were no associations between grip force and any SF-36 domain in men. Approximately 60% of adult patients rated their ability to work as “poor” or “less good” according to the Work Ability Index, 68% of patients had more than one week of sick leave in the past year, and 20.8% of them were permanently not able to work for at least 2 years. Children and adolescents with DM had impaired physical and psychosocial functioning compared to healthy norms with 40% of individuals showing increased emotional distress requiring in-depth psychological assessment.ConclusionEuropean patients with DM and PM experience a muscle weakness that has a detrimental impact on HRQoL, daily activities and ability to work. Similar disease impact on HRQoL was reported in patients in North America. These findings suggest a need for a novel therapy that will restore physical functioning in patients with DM and PM.Disclosure of InterestsJens Schmidt Speakers bureau: Euroimmun, CSL Behring, Consultant of: Alnylam, Argenx, Biotest, CSL Behring, Kezar Life Sciences, LFB, Novartis, Octapharma, UCB, Grant/research support from: CSL Behring, Novartis, Konrad Pisarczyk Consultant of: Kezar Life Sciences, Richard Leff Shareholder of: Kezar Life Sciences, Consultant of: Kezar Life Sciences, Kiruthi Palaniswamy Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences, Eunmi Park Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences, Li Long Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences
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Vencovský J, Pisarczyk K, Leff R, Park E, Palaniswamy K, Long L. AB1277 POOR LONG-TERM OUTCOMES AND SUBSTANTIAL BURDEN OF COMORBIDITIES IN EUROPEAN PATIENTS WITH DERMATOMYOSITIS/POLYMYOSITIS: RESULTS FROM A SYSTEMATIC LITERATURE REVIEW. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.756] [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: 11/03/2022]
Abstract
BackgroundDermatomyositis (DM) and polymyositis (PM) are rare heterogenous systemic autoimmune disorders of the skin, muscles and other organs that may have a devastating impact on patients’ lives. Despite various therapies used in clinical practice, a notable proportion of patients seem not to achieve sustainable remission. There is a need to better understand long-term outcomes and comorbidities in patients with DM/PM in Europe.ObjectivesTo systematically review and summarize evidence on clinical burden of disease in patients with DM/PM in Europe.MethodsA systematic literature review (SLR) was conducted in MEDLINE and Embase databases to identify studies in children and adults with DM/PM, published in the English language between 2011 and 2021. Primary studies enrolling 10 or more patients were included, irrespective of country or region. Each eligible article was independently reviewed by two reviewers. The title and study abstracts were reviewed to assess eligibility for full-text review. The current abstract summarizes SLR results on the long-term outcomes and comorbidities in patients with DM/PM in Europe.ResultsA total of 2,967 non-duplicated publications were retrieved from medical databases and analyzed against pre-defined study selection criteria. There were 2,574 records excluded at title and abstract screening. Remaining 393 records were analyzed in the full text with 208 papers considered relevant. Additional 21 papers were identified from searching reference list of relevant studies and conference proceedings. In total, 222 studies (229 publications) were included in data abstraction. Among 43 studies conducted across 14 European countries, 23 studies evaluated long-term outcomes of disease and burden of comorbidities. There were 14 longitudinal cohort studies, 7 cross-sectional analyses and 2 case-control studies. Only 29-44% of DM/PM adults achieved remission. Between 38% and 62% of adults with DM/PM required at least 3 different medications, suggesting inadequate response to initial and subsequent regimens. During a mean follow-up of 13.9 years, 69% patients with JDM had polycyclic or chronic disease characterized by periods of remission and recurrence or by permanently active disease for more than 2 years after diagnosis. A notable proportion of children (60.4%) showed evidence of damage in at least one body organ and 13-20% of patients had complications such as calcinosis, lipodystrophy, or muscle atrophy. Adults with DM/PM often suffered from interstitial lung disease (16-66%), serious infections leading to hospitalization or death (21-26.7%), and cardiovascular disorders (CVDs) (19-71%). Compared to age and gender matched controls without DM, patients with DM had 16-times higher risk of venous thromboembolism (HR=16.44, 95% CI: 7.54-35.86). Incidence of coronary heart disease, hemorrhagic stroke, or ischemic stroke during 10-year follow-up was approximately 1.5- to 2-times higher in DM/PM adults relative to general population. Multiple studies reported high rates of any malignancy in DM adults (7.5-33%) and in PM adults (8-11.7%). During approximately 24,000 patient-years of follow-up, adults with DM/PM had more than 4-times higher incidence of lung cancer compared to general population that also was one of the highest incidences among multiple other autoimmune diseases. Long-term prognosis in DM/PM was poor with 20-year survival below 70%. The most common causes of deaths were pulmonary-related, malignancies, and cardiac complications. Mortality due to lung cancer was more than 4-times higher than in general population (standardized mortality ratio=4.17, 95% CI: 3.03-5.60).ConclusionEuropean patients with DM/PM suffer from substantial burden of comorbidities including serious infections, malignancies and CVDs that lead to poor long-term outcomes. A notable proportion of adult and juvenile patients do not achieve sustainable remission or experience relapse indicating high unmet need.Disclosure of InterestsJiří Vencovský Speakers bureau: Abbvie, Biogen, Boehringer, Eli Lilly, Gilead, MSD, Novartis, Pfizer, Roche, Sanofi, UCB, Werfen, Consultant of: Abbvie, Argenx, Boehringer, Eli Lilly, Gilead, Octapharma, Pfizer, UCB, Grant/research support from: Abbvie, Konrad Pisarczyk Consultant of: Kezar Life Sciences, Richard Leff Shareholder of: Kezar Life Sciences, Consultant of: Kezar Life Sciences, Eunmi Park Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences, Kiruthi Palaniswamy Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences, Li Long Shareholder of: Kezar Life Sciences, Employee of: Kezar Life Sciences.
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Park E, Ha J, Lim S, Kim G, Yoon Y. Development of postbiotics by whey bioconversion with Enterococcus faecalis M157 KACC81148BP and Lactococcus lactis CAU2013 KACC81152BP for treating periodontal disease and improving gut health. J Dairy Sci 2021; 104:12321-12331. [PMID: 34600708 DOI: 10.3168/jds.2021-20616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022]
Abstract
This study developed postbiotics with whey bioconversion product produced by Enterococcus faecalis M157 KACC 81148BP, and mixed whey bioconversion products produced by E. faecalis M157 KACC 81148BP and Lactococcus lactis ssp. lactis CAU2013 KACC 81152BP to alleviate periodontitis (PD) and to improve gut health. The powdered whey bioconversion product (EF) produced by E. faecalis M157 KACC 81148BP, mixed whey bioconversion products (EF+LL) from E. faecalis M157 KACC 81148BP and L. lactis CAU2013 KACC 81152BP, and phosphate-buffered saline (PBS; control) were administered orally to PD-induced rats for 8 wk. Infiltration of inflammatory cells and epithelial proliferation in periodontal tissue were found in control, but the lesions were reduced in PD+EF group (administration of EF to PD-induced rats), and no lesions were observed in PD+EF+LL group (administration of EF+LL to PD-induced rats). The bone loss volumes in PD+EF and PD+EF+LL groups were lower than in control. Cytokine production levels related to inflammation were lower and antioxidative stress markers were higher in PD+EF and PD+EF+LL groups than in control for both periodontal tissue and gut. The ratios of Lactobacillus spp. in gut microbiome of PD+EF and PD+EF+LL groups were higher than in control. These results indicate that the whey bioconversion product produced by E. faecalis M157 KACC 81148BP, and mixed whey bioconversion products produced by E. faecalis M157 KACC 81148BP and L. lactis CAU2013 KACC 81152BP are effective on relieving periodontitis and improving the gut health.
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Affiliation(s)
- E Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - J Ha
- Center for Consumer Health Research, CHA Advanced Research Institute, Seongnam 13488, Korea
| | - S Lim
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - G Kim
- Department of Animal Science and and Technology, Chung-Ang University, Anseong 17546, Korea
| | - Y Yoon
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea; Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea.
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Kim D, Park E, Heo C, Jin U, Kim E, Han W, Shin K, Kim I. Hypofractionated vs. Conventional Radiotherapy in Breast Cancer Patients Who Underwent Breast Reconstruction: Toxicity Analysis. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.718] [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: 11/26/2022]
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Park E, Kim YS, Omari MK, Suh HK, Faqeerzada MA, Kim MS, Baek I, Cho BK. High-Throughput Phenotyping Approach for the Evaluation of Heat Stress in Korean Ginseng ( Panax ginseng Meyer) Using a Hyperspectral Reflectance Image. Sensors (Basel) 2021; 21:s21165634. [PMID: 34451076 PMCID: PMC8402434 DOI: 10.3390/s21165634] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/15/2021] [Accepted: 08/19/2021] [Indexed: 11/16/2022]
Abstract
Panax ginseng has been used as a traditional medicine to strengthen human health for centuries. Over the last decade, significant agronomical progress has been made in the development of elite ginseng cultivars, increasing their production and quality. However, as one of the significant environmental factors, heat stress remains a challenge and poses a significant threat to ginseng plants’ growth and sustainable production. This study was conducted to investigate the phenotype of ginseng leaves under heat stress using hyperspectral imaging (HSI). A visible/near-infrared (Vis/NIR) and short-wave infrared (SWIR) HSI system were used to acquire hyperspectral images for normal and heat stress-exposed plants, showing their susceptibility (Chunpoong) and resistibility (Sunmyoung and Sunil). The acquired hyperspectral images were analyzed using the partial least squares-discriminant analysis (PLS-DA) technique, combining the variable importance in projection and successive projection algorithm methods. The correlation of each group was verified using linear discriminant analysis. The developed models showed 12 bands over 79.2% accuracy in Vis/NIR and 18 bands with over 98.9% accuracy at SWIR in validation data. The constructed beta-coefficient allowed the observation of the key wavebands and peaks linked to the chlorophyll, nitrogen, fatty acid, sugar and protein content regions, which differentiated normal and stressed plants. This result shows that the HSI with the PLS-DA technique significantly differentiated between the heat-stressed susceptibility and resistibility of ginseng plants with high accuracy.
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Affiliation(s)
- Eunsoo Park
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon 34134, Korea; (E.P.); (M.K.O.); (M.A.F.)
| | - Yun-Soo Kim
- R&D Headquarters, Korea Ginseng Corporation, Daejeon 34128, Korea;
| | - Mohammad Kamran Omari
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon 34134, Korea; (E.P.); (M.K.O.); (M.A.F.)
| | - Hyun-Kwon Suh
- Department of Life Resources Industry, Dong-A University, Busan 49315, Korea;
| | - Mohammad Akbar Faqeerzada
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon 34134, Korea; (E.P.); (M.K.O.); (M.A.F.)
| | - Moon S. Kim
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville MD 20705, USA; (M.S.K.); (I.B.)
| | - Insuck Baek
- Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville MD 20705, USA; (M.S.K.); (I.B.)
| | - Byoung-Kwan Cho
- Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, Daejeon 34134, Korea; (E.P.); (M.K.O.); (M.A.F.)
- Department of Smart Agriculture System, Chungnam National University, Daejeon 34134, Korea
- Correspondence:
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Cho MJ, Kim YJ, Kim MJ, Kim YS, Park E, Choi KH, Kang JY, Kim HO, Koong MK, Kim YS, Yoon TK, Ko JJ, Lee JH. P–205 Epothilone D as an actin cytoskeleton stabilizer improved mitochondria bioenergenesis and blastocyst formation of mouse preimplantation embryo. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.204] [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: 11/14/2022] Open
Abstract
Abstract
Study question
What is primary factor of bioenergetics product activity between microtubule instability and the functional activity of mitochondria in embryo?
Summary answer
The actin cytoskeleton instability is presumably the primary cause for the bioenergenesis of mitochondrial function to the preimplantation embryo development.
What is known already
Mitochondria are cellular organelles dynamically moving and morphological changes. It provides for homeostatic energy to the cell. The dynamic property of the mitochondria is associated with the microtubule network in the cell. However, the stability of the microtubule was clearly identified for preimplantation embryo development.
Study design, size, duration
This study is designed to assess the ATP productivity of the mitochondria, and specifically to observe what its primary factor is in terms of providing microtubule stability in mammalian cells. Additionally, we investigated the relationship between blastocyst formation and actin cytoskeleton stabilization by EpD with 2-cell mice.
Participants/materials, setting, methods
We prepared the microtubule stability regulation model with the HEK293 cell line by using the microtubule stabilizer as an Epothilone D (EpD). Then we analyzed the metabolic activity of the cells through oxidative phosphorylation (OXP) ratios analysis. Also, we performed confocal live imaging to observe mitochondria morphology depending on the cells’ microtubule. Next, we treated EpD to 2-cell culture media for the analysis of blastocyst development ratios.
Main results and the role of chance
EpD significantly increased fusion form. Also, EpD enhance bioenergy ratios like OXP in the mitochondria and functional activity related marker, like mTOR compared with the control. These results suggest that microtubule stabilization enhances mitochondrial metabolism by increasing oxygen consumption. Also, EpD in 2-cell culture media led to a significant increase in the speed of development and 50% higher hatched out blastocyst formation ratios compared to the control group.
Limitations, reasons for caution
This study had limited animal experiments. For the next study, we are planning with an aim to improve the quality and development ratios of human embryos by EpD.
Wider implications of the findings: Microtubule stabilizer has a possibility to recover the mitochondria’s functional activity in the preimplantation embryo development. Mitochondrial functional activity along the actin cytoskeleton may play a pivotal role in determining the embryo quality and development ratios for archive pregnancy.
Trial registration number
non-clinical trials
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Affiliation(s)
- M J Cho
- CHA University, Biomedical Sciences, Seoul, Korea- South
| | - Y J Kim
- CHA Medical Group, Reproductive and Molecular Medicine, Seoul, Korea- South
| | - M J Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - E Park
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - K H Choi
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - J Y Kang
- CHA Fertility Center Seoul Station, Embryology lab, Seoul, Korea- South
| | - H O Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - M K Koong
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - Y S Kim
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - T K Yoon
- CHA Fertility Center Seoul Station, Clinic, Seoul, Korea- South
| | - J J Ko
- CHA University, Biomedical Sciences, Seoul, Korea- South
| | - J H Lee
- CHA fertility seoul center seoul sequare 3floor, Reproductive and Molecular Medicine., Seoul, Korea- South
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Gu H, Bing R, Chin C, Fang L, White AC, Everett R, Spath N, Park E, Chambers JB, Newby DE, Chiribiri A, Dweck MR, Chowienczyk P. First-phase ejection fraction by cardiovascular magnetic resonance predicts outcomes in aortic stenosis. J Cardiovasc Magn Reson 2021; 23:73. [PMID: 34107986 PMCID: PMC8191208 DOI: 10.1186/s12968-021-00756-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/16/2020] [Accepted: 04/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND First-phase ejection fraction (EF1; the ejection fraction measured during active systole up to the time of maximal aortic flow) measured by transthoracic echocardiography (TTE) is a powerful predictor of outcomes in patients with aortic stenosis. We aimed to assess whether cardiovascular magnetic resonance (CMR) might provide more precise measurements of EF1 than TTE and to examine the correlation of CMR EF1 with measures of fibrosis. METHODS In 141 patients with at least mild aortic stenosis, we measured CMR EF1 from a short-axis 3D stack and compared its variability with TTE EF1, and its associations with myocardial fibrosis and clinical outcome (aortic valve replacement (AVR) or death). RESULTS Intra- and inter-observer variation of CMR EF1 (standard deviations of differences within and between observers of 2.3% and 2.5% units respectively) was approximately 50% that of TTE EF1. CMR EF1 was strongly predictive of AVR or death. On multivariable Cox proportional hazards analysis, the hazard ratio for CMR EF1 was 0.93 (95% confidence interval 0.89-0.97, p = 0.001) per % change in EF1 and, apart from aortic valve gradient, CMR EF1 was the only imaging or biochemical measure independently predictive of outcome. Indexed extracellular volume was associated with AVR or death, but not after adjusting for EF1. CONCLUSIONS EF1 is a simple robust marker of early left ventricular impairment that can be precisely measured by CMR and predicts outcome in aortic stenosis. Its measurement by CMR is more reproducible than that by TTE and may facilitate left ventricular structure-function analysis.
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Affiliation(s)
- Haotian Gu
- British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | - Rong Bing
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Calvin Chin
- Department of Cardiology, National Heart Centre, Singapore, Singapore
| | - Lingyun Fang
- Department of Ultrasound, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Audrey C White
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Russell Everett
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Nick Spath
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Eunsoo Park
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - John B Chambers
- Cardiothoracic Centre, Guy's and St Thomas's Hospitals, London, UK
| | - David E Newby
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Amedeo Chiribiri
- British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | - Marc R Dweck
- British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Phil Chowienczyk
- British Heart Foundation Centre of Research Excellence, King's College London, London, UK.
- Department of Clinical Pharmacology, St Thomas' Hospital, London, SE1 7EH, UK.
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Choi Y, Park E, Kim S, Ha J, Oh H, Kim Y, Lee Y, Seo Y, Kang J, Lee S, Lee H, Yoon Y, Choi KH. Fermented milk with Lactobacillus curvatus SMFM2016-NK alleviates periodontal and gut inflammation, and alters oral and gut microbiota. J Dairy Sci 2021; 104:5197-5207. [PMID: 33685682 DOI: 10.3168/jds.2020-19625] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/09/2021] [Indexed: 11/19/2022]
Abstract
This study aimed to analyze the effect of milk fermented with Lactobacillus curvatus SMFM2016-NK on periodontal diseases and gut health in a rat model. To improve the effect of Lb. curvatus SMFM2016-NK-fermented milk administration for relieving periodontitis, the periodontitis rat models were treated with the following for 4 wk: 10% skim milk (normal), periodontitis + 10% skim milk (negative control), periodontitis + Lactobacillus rhamnosus GG-fermented milk (positive control), and periodontitis + Lb. curvatus SMFM2016-NK-fermented milk (PD+LCFM). Transcriptional analysis of inflammatory cytokines [tumor necrosis factor α (TNF-α), IL-1β, IL-6, and IL-10] was performed via quantitative reverse-transcription PCR. The changes in the oral and gut microbiomes after administering Lb. curvatus SMFM2016-NK-fermented milk were analyzed with metagenomics sequencing using DNA extracted from the oral gingival tissues and feces from the cecum of the rat models. After treatment with Lb. curvatus SMFM2016-NK-fermented milk, the relative gene expression levels of TNFA and IL1B in the gingiva decreased in the PD+LCFM group compared with those in the negative control group. In the oral microbiome, the proportion of the phylum Proteobacteria in the PD+LCFM group was lower than that in the negative control after treatment with Lb. curvatus SMFM2016-NK-fermented milk. For the effect in the gut, the relative gene expression levels of inflammatory cytokines in the colon between the normal and negative control groups were not different; however, the expression levels of TNFA and IL1B in the PD+LCFM and positive control groups, respectively, were lower than those in the negative control group. The composition and diversity of the gut microbiome differed among normal, periodontitis, and Lb. curvatus SMFM2016-NK-fermented milk treatment groups. These results indicate that Lb. curvatus SMFM2016-NK-fermented milk could alleviate periodontal and gut inflammation and change oral and gut microbiota.
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Affiliation(s)
- Y Choi
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - E Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - J Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Y Seo
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - J Kang
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - S Lee
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - H Lee
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Yoon
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea; Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea.
| | - K-H Choi
- Department of Oral Microbiology, College of Dentistry, Wonkwang University, Iksan 54538, Korea.
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Kim D, Park E, Heo C, Kim E, Kim I. Hypofractionated Versus Conventional Fractionated Radiotherapy for Reconstructed Breast Cancer: Toxicity Analysis. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1035] [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: 11/29/2022]
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Abdelrahman A, Nada A, Park E, Humera A. Neurological involvement and MRI brain findings in an adult with hemolytic uremic syndrome: A case report. Radiol Case Rep 2020; 15:2056-2058. [PMID: 32944099 PMCID: PMC7481498 DOI: 10.1016/j.radcr.2020.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Received: 07/13/2020] [Revised: 08/09/2020] [Accepted: 08/13/2020] [Indexed: 11/30/2022] Open
Abstract
Hemolytic uremic syndrome is a frequent complication of shiga toxin producing Escherichia coli in pediatric population. It rarely affects adults with extremely rare neurological manifestation. We present a case of hemolytic uremic syndrome in a 64-year-old male who presented with a bloody diarrhea 30 minutes after eating an expired meat sandwich. Shiga-toxin producing Escherichia coli O157:H7 was confirmed as the causative agent. The patient developed neurological manifestations with persistent encephalopathy that ultimately leads to his death after 22 days of hospitalization. Magnetic resonance imaging findings was significant for signal changes in the thalami, tectum, insulae, and central pons, impressive of hemolytic uremic syndrome.
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Key Words
- ADC, Apparent diffusion coefficient
- CNS, Central nervous system
- CT, Computed tomography
- DWI, Diffusion weighted imaging
- E. Coli, Escherichia coli
- EHEC, Enterohemorrhagic Escherichia Coli
- FLAIR, Fluid attenuated inversion recovery
- GCS, Glasgow coma scale
- HUS, Hemolytic Uremic Syndrome
- Hemolytic uremic syndrome
- IV, Intravenous
- MRI
- MRI, Magnetic resonance imaging
- NICU, Neurological intensive care unit
- Neurological complications
- STEC, Shiga toxin producing E. Coli
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Affiliation(s)
- A Abdelrahman
- Department of Radiology, University of Missouri, 3500 S Scott Blvd, Apt 5, Columbia, MO 65203, USA
| | - A Nada
- Department of Radiology, University of Missouri, 3500 S Scott Blvd, Apt 5, Columbia, MO 65203, USA
| | - E Park
- Department of Radiology, University of Missouri, 3500 S Scott Blvd, Apt 5, Columbia, MO 65203, USA
| | - A Humera
- Department of Radiology, University of Missouri, 3500 S Scott Blvd, Apt 5, Columbia, MO 65203, USA
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Bing R, Gu H, Chin C, Fang L, White A, Everett RJ, Spath NB, Park E, Jenkins WS, Shah AS, Mills NL, Flapan AD, Chambers JB, Newby DE, Chowienczyk P, Dweck MR. Determinants and prognostic value of echocardiographic first-phase ejection fraction in aortic stenosis. Heart 2020; 106:1236-1243. [PMID: 32345658 PMCID: PMC7418600 DOI: 10.1136/heartjnl-2020-316684] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/13/2020] [Accepted: 04/02/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE First-phase ejection fraction (EF1) is a novel measure of early left ventricular systolic dysfunction. We investigated determinants of EF1 and its prognostic value in aortic stenosis. METHODS EF1 was measured retrospectively in participants of an echocardiography/cardiovascular magnetic resonance cohort study which recruited patients with aortic stenosis (peak aortic velocity of ≥2 m/s) between 2012 and 2014. Linear regression models were constructed to examine variables associated with EF1. Cox proportional hazards were used to determine the prognostic power of EF1 for aortic valve replacement (AVR, performed as part of clinical care in accordance with international guidelines) or death. RESULTS Total follow-up of the 149 participants (69.8% male, 70 (65-76) years, mean gradient 33 (21-42) mm Hg) was 238 029 person-days. Sixty-seven participants (45%) had a low baseline EF1 (<25%) despite normal ejection fraction (67% (62%-71%)). Patients with low EF1 had more severe aortic stenosis (mean gradient 39 (34-45) mm Hg vs 24 (16-35) mm Hg, p<0.001) and more myocardial fibrosis (indexed extracellular volume (iECV) (24.2 (19.6-28.7) mL/m2 vs 20.6 (16.8-24.3) mL/m2, p=0.002; late gadolinium enhancement (LGE) prevalence 52% vs 20%, p<0.001). Zva, iECV and infarct LGE were independent predictors of EF1. EF1 improved post-AVR (n=57 with post-AVR EF1 available, baseline 16 (12-24) vs follow-up 27% (22%-31%); p<0.001). Low baseline EF1 was an independent predictor of AVR/death (HR 5.6, 95% CI 3.4 to 9.4), driven by AVR. CONCLUSION EF1 quantifies early, potentially reversible systolic dysfunction in aortic stenosis, is associated with global afterload and myocardial fibrosis, and is an independent predictor of AVR.
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Affiliation(s)
- Rong Bing
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Haotian Gu
- BHF Centre of Research Excellence, King's College London, London, UK
| | - Calvin Chin
- Cardiovascular Medicine, National Heart Center Singapore, Singapore
| | - Lingyun Fang
- BHF Centre of Research Excellence, King's College London, London, UK
| | - Audrey White
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Russell J Everett
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Nicholas B Spath
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Eunsoo Park
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - William Sa Jenkins
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Anoop Sv Shah
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Nicholas L Mills
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Andrew D Flapan
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - David E Newby
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
| | - Phil Chowienczyk
- BHF Centre of Research Excellence, King's College London, London, UK
- Guy's and Saint Thomas' Hospitals NHS Trust, London, UK
| | - Marc R Dweck
- Edinburgh Heart Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- BHF Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, UK
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Mack M, Brestoff J, Berrien-Elliott M, Yang T, Trier A, Collins P, Niu H, Bodet N, Wagner J, Park E, Xu A, Wang F, McCullen M, Chibnall R, Council M, Margolis D, Sheinbein D, Vivier E, Lovato P, Cella M, Colonna M, Yokoyama W, Oltz E, Fehniger T, Kim B. 852 Natural killer cell deficiency reveals a novel immunotherapy strategy for atopic dermatitis. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.868] [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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18
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Park E, Jeon Y, Kang J, Baik S. P-101 Oncologic outcomes of mitomycin-C induced severe neutropenia after hyperthermic intraperitoneal chemotherapy with cytoreductive surgery in colorectal cancer patients. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.183] [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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Kwon M, Park E, Livingston JA, Dean GE, Suzanne DS. 0268 Development of an Integrated Model of Sleep Deprivation in Adolescence. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.266] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Sleep deprivation is a consistently and widely concerning problem among adolescents. Although a few models have been proposed to explain the relationships and pathways through which factors influence sleep in adolescents, there are lack of theoretical models that apply both biological and behavioral factors that contribute to sleep deprivation across the trajectory of adolescent development. The current study proposes an integrated model that draws upon constructs from several influential theories with an aim to re-conceptualize factors associated with sleep deprivation as a chronic and cyclic problem that emerges from biological and behavioral changes in youth.
Methods
The Two Process Model of Sleep Regulation, Spielman’s 3p model, the theory of planned behavior, dual systems model, and sleep health framework are used to develop an integrated model of factors that lead to sleep deprivation in adolescents.
Results
The resulting integrated model highlights the importance of adolescent’s inherent nature of delayed sleep phase at pubertal onset (two process model); increased reward-seeking that precedes the structural maturation of their cognitive control and emotions (dual systems model); and their attitudes/perceptions towards sleep (theory of planned behavior), which is often geared toward not prioritizing sleep. Sleep health framework adequately frames the pattern of sleep-wakefulness in adolescents using a multidimensional approach of sleep. Moreover, the new model presents contextual factors (Spielman’s 3p model) and the way that these constructs interact in order to maintain a vicious cycle of insufficient sleep which leads to chronic sleep deprivation.
Conclusion
The current model portrays a wide-ranging view of mechanisms underlying sleep deprivation among adolescence by integrating both biological and behavioral aspects. The model is proposed to encourage researchers to explore these conceptual elements of biological and neurobiological changes, and behavioral problems in order to operationalize relevant measures to relate the concepts to sleep deprivation and subsequent health outcomes in adolescents.
Support
None
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Affiliation(s)
- M Kwon
- School of Nursing, University at Buffalo, SUNY, Buffalo, NY
| | - E Park
- School of Nursing, University at Buffalo, SUNY, Buffalo, NY
| | - J A Livingston
- School of Nursing, University at Buffalo, SUNY, Buffalo, NY
| | - G E Dean
- School of Nursing, University at Buffalo, SUNY, Buffalo, NY
| | - D S Suzanne
- School of Nursing, University at Buffalo, SUNY, Buffalo, NY
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Kang S, Park E, Seo K. A new treatment for presumed corneal epithelial inclusion cyst in a shih-tzu dog. J Small Anim Pract 2019; 61:776-781. [PMID: 31016746 DOI: 10.1111/jsap.13008] [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] [Received: 08/06/2017] [Revised: 09/22/2018] [Accepted: 11/21/2018] [Indexed: 11/28/2022]
Abstract
An 8-year-old female shih-tzu was assessed for a 3-year history of yellow intrastromal material in the right eye. Slit-lamp biomicroscopy showed a yellow lesion in the upper half of the cornea, superficial corneal neovascularisation and oedema with negative fluorescein staining in the right eye. Ultrasound biomicroscopy revealed a nearly anechoic cystic space surrounded by hyperechoic oedematous cornea separating the stroma at three-quarters of the corneal depth. Two partial-thickness corneal incisions were performed around the lesion under topical anaesthesia. After cytology and culture sampling, intrastromal flushing was performed. A yellow viscous necrotic tissue was identified with no microorganism or evidence of tumour formation. Antibiotics, anti-inflammatories and a bandage contact lens were applied. Ultrasound biomicroscopy confirmed no recurrence 8 days later. Corneal neovascularisation and oedema gradually resolved through a 2-week follow-up. There was no recurrence in the subsequent 8 months.
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Affiliation(s)
- S Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - E Park
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - K Seo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
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Kruse GR, Park E, Haberer JE, Abroms L, Shahid NN, Howard SE, Chang Y, Haas JS, Rigotti NA. Proactive text messaging (GetReady2Quit) and nicotine replacement therapy to promote smoking cessation among smokers in primary care: A pilot randomized trial protocol. Contemp Clin Trials 2019; 80:48-54. [PMID: 30923022 DOI: 10.1016/j.cct.2019.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 10/25/2018] [Revised: 03/12/2019] [Accepted: 03/14/2019] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Most smokers see a physician each year, but few use any assistance when they try to quit. Text messaging programs improve smoking cessation in community and school settings; however, their efficacy in a primary care setting is unclear. The current trial assesses the feasibility and preliminary clinical outcomes of text messaging and mailed nicotine replacement therapy (NRT) among smokers in primary care. METHODS In this single-center pilot randomized trial, eligible smokers in primary care are offered brief advice by phone and randomly assigned to one of four interventions: (1) Brief advice only, (2) text messages targeted to primary care patients and tailored to quit readiness, (3) a 2-week supply of nicotine patches and/or lozenges (NRT), and (4) both text messaging and NRT. Randomization is stratified by practice and intention to quit. The text messages (up to 5/day) encourage those not ready to quit to practice a quit attempt, assist those with a quit date through a quit attempt, and promote NRT use. The 2-week supply of NRT is mailed to patients' homes. RESULTS Feasibility outcomes include recruitment rates, study retention, and treatment adherence. Clinical outcomes are assessed at 1, 2, 6, and 12-weeks post-enrollment. The primary outcome is ≥1self-reported quit attempt(s). Secondary clinical outcomes include self-reported past 7- and 30-day abstinence, days not smoked, NRT adherence, and exhaled carbon monoxide. CONCLUSIONS This pilot assesses text messaging plus NRT, as a proactively offered intervention for smoking cessation support in smokers receiving primary care and will inform full-scale randomized trial planning. TRIAL REGISTRATION ClinicalTrials.govNCT03174158.
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Affiliation(s)
- G R Kruse
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Tobacco Research and Treatment Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA.
| | - E Park
- Tobacco Research and Treatment Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA; Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - J E Haberer
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA; Center for Global Health, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - L Abroms
- Department of Prevention and Community Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - N N Shahid
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - S E Howard
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Y Chang
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - J S Haas
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA
| | - N A Rigotti
- Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA; Tobacco Research and Treatment Center, Massachusetts General Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA
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Lee HM, Ghill BK, Park E, Park CY, Choi WK, Lee J. Changes in the Ratio of T Helper 1 to T Helper 2 Signature Cytokines in Patients Undergoing Living Donor Liver Transplantation Surgery: A Prospective Controlled Study. Transplant Proc 2018; 50:3621-3625. [DOI: 10.1016/j.transproceed.2018.08.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 07/30/2018] [Accepted: 08/16/2018] [Indexed: 01/18/2023]
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Park J, Park E, Lim S, Lim M. Ecological study on the risk of gastric cancer with H.pylori and other potential cofactors in Korea. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Park
- National Cancer Center, Gyeonggi, South Korea
| | - E Park
- National Cancer Center, Gyeonggi, South Korea
| | - S Lim
- National Cancer Center, Gyeonggi, South Korea
| | - M Lim
- National Cancer Center, Gyeonggi, South Korea
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Thao TTP, Park E, Shin SH, Lim MK. A Longitudinal Follow-up Study on Factors Associated With Smoking Relapse Among Adolescent Quitline Users in Korea. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.65500] [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: 11/20/2022] Open
Abstract
Background: Smoking among adolescent is one of the biggest alarming issues in tobacco control. Although smoking cessation interventions for adolescents have been implemented, 92% would be relapsed within one year. However, the information on factors associated with smoking relapse is insufficient among adolescents, although it looks necessary for understanding smoking behaviors of adolescents and applying more effective intervention program for them. Korea is one of the country having the highest adolescent smoking prevalence (9.6% in boys and 2.7% in girls aged 19 years or less) and in lack of information on smoking behaviors and factors associated with relapse or successful quit. Telephone-based cessation service (hereafter Quitline) has been available since 2006 regarding the confidentiality and accessibility of adolescent smokers and it has followed-up abstinence of users with intensive counseling for 1 year. Therefore, analysis on the adolescent smokers who used Quitline might be meaningful to understand adolescents' cessation behaviors and factors associated with. Aim: To identify the factors associated with smoking relapse among adolescent Quitline users in Korea. Methods: 2141 (1370 boys and 394 girls) adolescent smokers who registered at Quitline in Korea from January 2007 to December 2017 and attempted quit were included in the current study. The baseline information on sociodemographic characteristics, smoking and other health behaviors, nicotine dependency, and motivational factors for quit were collected. Cessation outcome and reason of relapse were identified during the 1 year follow-up of each individual. Multivariate logistic regression was performed to identify associated factors of smoking relapse. Results: The analysis on the data are undergoing and the result would be suggested in the conference with the further analysis. Conclusion: It will be suggested in the conference.
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Affiliation(s)
- T. Thi Phuong Thao
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, Goyang, Republic of Korea
| | - E. Park
- Division of Cancer Prevention, National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea
| | - S. Hwa Shin
- Division of Cancer Prevention, National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea
| | - M. Kyung Lim
- Division of Cancer Prevention, National Cancer Control Institute, National Cancer Center, Goyang, Republic of Korea
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Park J, Park E, Lim S, Lim M. An Ecological Study on the Risk of Gastric Cancer With Helicobacter Pylori Prevalence and Other Potential Cofactors in Korea. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.66500] [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: 11/20/2022] Open
Abstract
Background: Korea has a high incidence of gastric cancer and a high prevalence of Helicobacter pylori infection. Observation of prevalence trends and determination of risk factors for gastric cancer are important to establish health policies to prevent and reduce the burden of disease. Currently, there is no evidence of complete correlation between prevalence of H. pylori infection and the occurrence of gastric cancer. Several explanations have been proposed for the paradox of high prevalence of infection and low gastric cancer incidence in certain places, including diet and salt consumption, genetic susceptibility, other infections, aflatoxin-contaminated food, and the interaction of all these factors, but none of them has been clearly established. Aim: To explore the potential effects of prevalence of H. pylori infection and other risk factors on gastric cancer incidence in Korea. Methods: Information on gastric cancer incidence, prevalence of H. pylori infection, and the risk factors for gastric cancer were evaluated from nationally representative data - the Korean National Cancer Registry, nationwide routine health check-up surveillance system, and National Health and Nutrition Survey, respectively. Secular trends of H. pylori infection prevalence and age-standardized incidence rates for gastric cancer by region were examined. Furthermore, trends of income level, education level, marital status, number of family members, smoking status, drinking status, obesity, diabetes, hypertension, dyslipidemia, and age-standardized incidence rates for gastric cancer by region were examined. Results: Gastric cancer incidence showed a decreasing trend from 2011 to 2015; 50.6%–44.4% for men and 22.1%–17.0% for women. The prevalence of H. pylori infection also showed a decreasing trend; from 66.9% in 1998%–54.4% in 2011. In Korea, areas with high prevalence of H. pylori infection also showed high gastric cancer incidence. However, the Chungcheong area showed relatively low prevalence of H. pylori infection, but had the highest gastric cancer incidence in Korea. Other factors which showed similar effects on gastric cancer incidence, like H. pylori infection were large family size (4 or more family members), low income, low education, and obesity. The effect of introduction of 'National Cancer Screening Program' will be evaluated in the final outcome. Conclusion: The results of this study indicated that significant regional differences exist between trends in H. pylori infection prevalence and gastric cancer incidence in Korea. Also, the possibility of lack of association between H. pylori prevalence and the incidence of gastric cancer are suggested. Overall, this study suggests the need for further research to explore potential factors accounting for regional differences in gastric cancer incidence in Korea.
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Affiliation(s)
- J. Park
- National Cancer Center Graduate School of Cancer Science and Policy, Department of Cancer Control and Population Health, Goyang-si, Republic of Korea
| | - E. Park
- National Cancer Control Institute, National Cancer Center Korea, Division of Cancer Prevention, Goyang-si, Republic of Korea
| | - S. Lim
- National Cancer Control Institute, National Cancer Center Korea, Division of Cancer Prevention, Goyang-si, Republic of Korea
| | - M.K. Lim
- National Cancer Center Graduate School of Cancer Science and Policy, Department of Cancer Control and Population Health, Goyang-si, Republic of Korea
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Jonasch E, Park E, Thamake S, Hirmand M, Srinivasan R. An open-label phase II study to evaluate PT2977 for the treatment of von hippel-lindau disease associated renal cell carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy283.130] [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: 11/13/2022] Open
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27
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Nguyen THB, Park E, Cui X, Nguyen VH, Kim H. fPADnet: Small and Efficient Convolutional Neural Network for Presentation Attack Detection. Sensors (Basel) 2018; 18:s18082532. [PMID: 30072662 PMCID: PMC6111730 DOI: 10.3390/s18082532] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/19/2018] [Accepted: 07/30/2018] [Indexed: 11/16/2022]
Abstract
The rapid growth of fingerprint authentication-based applications makes presentation attack detection, which is the detection of fake fingerprints, become a crucial problem. There have been numerous attempts to deal with this problem; however, the existing algorithms have a significant trade-off between accuracy and computational complexity. This paper proposes a presentation attack detection method using Convolutional Neural Networks (CNN), named fPADnet (fingerprint Presentation Attack Detection network), which consists of Fire and Gram-K modules. Fire modules of fPADnet are designed following the structure of the SqueezeNet Fire module. Gram-K modules, which are derived from the Gram matrix, are used to extract texture information since texture can provide useful features in distinguishing between real and fake fingerprints. Combining Fire and Gram-K modules results in a compact and efficient network for fake fingerprint detection. Experimental results on three public databases, including LivDet 2011, 2013 and 2015, show that fPADnet can achieve an average detection error rate of 2.61%, which is comparable to the state-of-the-art accuracy, while the network size and processing time are significantly reduced.
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Affiliation(s)
- Thi Hai Binh Nguyen
- Information and Communication Engineering, Inha University, 100 Inha-ro, Michuhol-gu Incheon 22212, South Korea.
| | - Eunsoo Park
- Information and Communication Engineering, Inha University, 100 Inha-ro, Michuhol-gu Incheon 22212, South Korea.
| | - Xuenan Cui
- Information and Communication Engineering, Inha University, 100 Inha-ro, Michuhol-gu Incheon 22212, South Korea.
| | - Van Huan Nguyen
- Faculty of Information Technology, Ton Duc Thang University, Ho Chi Minh City 756636, Vietnam.
| | - Hakil Kim
- Information and Communication Engineering, Inha University, 100 Inha-ro, Michuhol-gu Incheon 22212, South Korea.
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Kim T, Chang K, Kang K, Kim C, Kim E, Park H, Park E, Kim J, Lee E, Kim I, Seong E. MIR299, 145, and 494 regulate human aortic smooth muscle cell aging via direct targeting of VEZF1. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.351] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Park H, Park E. PO-012 Ferulic acid increases ABT-888 sensitivity in breast cancer cells. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.57] [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: 11/04/2022] Open
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Mack M, Brestoff J, Niu H, Whelan T, Oetjen L, Bodet N, Wang F, Xu A, Park E, Margolis D, Yokoyama W, Kim B. 1017 Natural killer cell dysregulation underlies atopic dermatitis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1029] [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: 10/17/2022]
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Kim W, Na J, Jang W, Park E, Choi J, Choi C, Kim J, Kim E, Rha S, Park C, Seo H, Lim H. 0880 Sleep Quality Change After RFCA In Paroxysmal Atrial Fibrillation& Relation Of Sleep Stability To The Recurrence: 24-hour Holter-based Cardiopulmonary Coupling Analysis. Sleep 2018. [DOI: 10.1093/sleep/zsy061.879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- W Kim
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - J Na
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - W Jang
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - E Park
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - J Choi
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - C Choi
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - J Kim
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - E Kim
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - S Rha
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - C Park
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - H Seo
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
| | - H Lim
- Korea University Guro Hospital, Seoul, KOREA, REPUBLIC OF
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Sarac B, Gammer C, Deng L, Park E, Yokoyama Y, Stoica M, Eckert J. Elastostatic reversibility in thermally formed bulk metallic glasses: nanobeam diffraction fluctuation electron microscopy. Nanoscale 2018; 10:1081-1089. [PMID: 29271462 DOI: 10.1039/c7nr06891c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The unparalleled shaping ability of bulk metallic glasses can revolutionize commercial products having multi-length scale features with a processing time of several minutes. Despite the widespread shaping ability of these polymer-like multicomponent alloys, thermoplastic forming (TPF) can severely degrade the intrinsic properties, particularly when complex stress states are activated. The present work emphasizes the importance of elastostatic loading (ESL) which not only fully reverses deteriorated room temperature plasticity originating under TPF or post-cryostatic conditions, but also activates a rejuvenation mechanism by rendering an extended resistance against strain softening. Furthermore, the reduction in the supercooled liquid region and crystallization enthalpy measured by differential scanning calorimetry are found to be temporary, and can be fully reversed to the initial condition. HRTEM imaging of the samples are performed with an imaging spherical aberration corrector. Individual nanobeam diffraction patterns obtained by the fluctuation electron microscopy (FEM) measurements are acquired using a scanning transmission electron microscope with a probe size of 1.2 nm from a 10 × 10 raster, yielding 100 diffraction patterns. The normalized variance of a series of nanodiffraction patterns of the post-elastostatically loaded sample reveals a height decrease in the first broad peak of normalized intensity variance V(k) suggesting modifications in the medium-range structural order which in turn dramatically restores the mechanical and thermal properties. Overall, the combination of TPF and post-ESL treatment in advanced glassy metals can open a new avenue for ultra-high mechanical and thermal performance micro- and nanomechanical devices for biosensors, MOSFETs and robotics.
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Affiliation(s)
- B Sarac
- Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben, 8700, Austria.
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See K, Manser R, Park E, Steinfort D, Piccolo F, Manners D. MA 14.09 Impact of Lung Cancer Perceived Risk, Screening Eligibility and Worry on LDCT Screening Preference - Challenges for Engaging Patients at High Risk. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.579] [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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Kim JS, Park CM, Choi JA, Park E, Tchoe HJ, Choi M, Suh JK, Kim YH, Won SH, Chung YC, Bae KY, Lee SK, Park SC, Lee SH. The association between season of birth, age at onset, and clozapine use in schizophrenia. Acta Psychiatr Scand 2017; 136:445-454. [PMID: 28741647 DOI: 10.1111/acps.12776] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/03/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE This study aimed to determine whether the rate of clozapine use, an indicator of refractoriness in schizophrenia, is associated with the season of birth and age at onset in patients with schizophrenia based on nationwide data. METHODS Patients with schizophrenia (n = 114 749) who received prescriptions for antipsychotic medication between 2008 and 2014 were retrospectively identified from the Korean National Health Insurance Service database. The study population was divided into three groups based on their age at the onset of schizophrenia (early, middle, and late onset). We assessed differences in the month of birth between patients and the general population. In addition, the cumulative clozapine use was calculated. RESULTS Compared to the late-onset schizophrenia group, the early- and middle-onset groups showed a higher probability of birth during the winter season. In addition, the early-onset group showed the highest cumulative clozapine use rate. In the middle-onset group, the initiation of clozapine use was significantly earlier for patients born in winter compared to those born in summer. CONCLUSION Our results indicate that the age at onset is an important factor in predicting the prognosis of schizophrenia patients. The season of birth also affects the prognosis, but with less robustness. Specifically, it appears that early disease onset and winter birth might be associated with poor outcomes in Korean patients with schizophrenia.
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Affiliation(s)
- J S Kim
- Clinical Emotion and Cognition Research Laboratory, Goyang, Korea.,Department of Psychiatry, Soonchunhyang University of College of Medicine, Cheonan, Korea
| | - C M Park
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - J A Choi
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - E Park
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - H J Tchoe
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea.,Pharmaceutical Policy & Outcomes Research, School of Pharmacy, Sungkyunkwan University, Sowon, Korea
| | - M Choi
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - J K Suh
- National Evidence-based Healthcare Collaborating Agency, Seoul, Korea
| | - Y H Kim
- Gong-ju National Hospital, Gongju, Korea
| | - S H Won
- Department of Psychiatry, Kyungpook National University School of Medicine, Daegu, Korea
| | - Y C Chung
- Department of Psychiatry, Chonbuk National University Hospital, Jeonju, Korea
| | - K Y Bae
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - S K Lee
- Department of Psychiatry, Hallym University Chuncheon Sacred Hospital, College of Medicine, Hallym University, Chuncheon, Korea
| | - S C Park
- Department of Psychiatry, Inje University Haeundae Paik Hospital, Busan, Korea
| | - S H Lee
- Clinical Emotion and Cognition Research Laboratory, Goyang, Korea.,Department of Psychiatry, Inje University Ilsan Paik Hospital, Goyang, Korea
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Park E, Han Y, Kwon H, Kim H, Chung J. P1.02-029 Pulmonary Adenofibroma with Cystic Change: A Case Report. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.762] [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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Lee J, Moon S, Kim H, Park E, Ahn D, Paik H. Immune-enhancing activity of phosvitin by stimulating the production of pro-inflammatory mediator. Poult Sci 2017; 96:3872-3878. [DOI: 10.3382/ps/pex205] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Indexed: 12/13/2022] Open
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37
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Harms U, Li N, Rouault M, Wilkens K, Monroe R, Ma XJ, Park E. In-situ detection and characterization of EGFR and EGFRvIII expression heterogeneity in glioblastoma FFPE tissues. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx511.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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38
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Harms U, Li N, Rouault M, Wilkens K, Ma XJ, Park E. Tumor cell-intrinsic expression of immune checkpoint molecules revealed by RNA in situ hybridization. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx513.005] [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: 11/13/2022] Open
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39
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Lee J, Park E, Lee A, Chang WH, Kim D, Kim Y. Recovery‐related indicators of motor network plasticity according to impairment severity after stroke. Eur J Neurol 2017; 24:1290-1299. [DOI: 10.1111/ene.13377] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 06/27/2017] [Indexed: 01/05/2023]
Affiliation(s)
- J. Lee
- Department of Physical and Rehabilitation Medicine Center for Prevention and Rehabilitation Samsung Medical Center Heart Vascular Stroke Institute Sungkyunkwan University School of Medicine Seoul
- Department of Health Sciences and Technology Department of Medical Device Management & Research SAIHST Sungkyunkwan University Seoul
| | - E. Park
- Department of Physical and Rehabilitation Medicine Kyungpook National University Medical Center Daegu
| | - A. Lee
- Department of Health Sciences and Technology Department of Medical Device Management & Research SAIHST Sungkyunkwan University Seoul
| | - W. H. Chang
- Department of Physical and Rehabilitation Medicine Center for Prevention and Rehabilitation Samsung Medical Center Heart Vascular Stroke Institute Sungkyunkwan University School of Medicine Seoul
| | - D.‐S. Kim
- Korea Advanced Institute of Science and Technology School of Electrical Engineering Daejeon Korea
| | - Y.‐H. Kim
- Department of Physical and Rehabilitation Medicine Center for Prevention and Rehabilitation Samsung Medical Center Heart Vascular Stroke Institute Sungkyunkwan University School of Medicine Seoul
- Department of Health Sciences and Technology Department of Medical Device Management & Research SAIHST Sungkyunkwan University Seoul
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Kofron CM, Kim TY, King ME, Xie A, Feng F, Park E, Qu Z, Choi BR, Mende U. G q-activated fibroblasts induce cardiomyocyte action potential prolongation and automaticity in a three-dimensional microtissue environment. Am J Physiol Heart Circ Physiol 2017; 313:H810-H827. [PMID: 28710068 DOI: 10.1152/ajpheart.00181.2017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/13/2017] [Accepted: 07/03/2017] [Indexed: 11/22/2022]
Abstract
Cardiac fibroblasts (CFs) are known to regulate cardiomyocyte (CM) function in vivo and in two-dimensional in vitro cultures. This study examined the effect of CF activation on the regulation of CM electrical activity in a three-dimensional (3-D) microtissue environment. Using a scaffold-free 3-D platform with interspersed neonatal rat ventricular CMs and CFs, Gq-mediated signaling was selectively enhanced in CFs by Gαq adenoviral infection before coseeding with CMs in nonadhesive hydrogels. After 3 days, the microtissues were analyzed by signaling assay, histological staining, quantitative PCR, Western blots, optical mapping with voltage- or Ca2+-sensitive dyes, and microelectrode recordings of CF resting membrane potential (RMPCF). Enhanced Gq signaling in CFs increased microtissue size and profibrotic and prohypertrophic markers. Expression of constitutively active Gαq in CFs prolonged CM action potential duration (by 33%) and rise time (by 31%), prolonged Ca2+ transient duration (by 98%) and rise time (by 65%), and caused abnormal electrical activity based on depolarization-induced automaticity. Constitutive Gq activation in CFs also depolarized RMPCF from -33 to -20 mV and increased connexin 43 and connexin 45 expression. Computational modeling confers that elevated RMPCF and increased cell-cell coupling between CMs and CFs in a 3-D environment could lead to automaticity. In conclusion, our data demonstrate that CF activation alone is capable of altering action potential and Ca2+ transient characteristics of CMs, leading to proarrhythmic electrical activity. Our results also emphasize the importance of a 3-D environment where cell-cell interactions are prevalent, underscoring that CF activation in 3-D tissue plays a significant role in modulating CM electrophysiology and arrhythmias.NEW & NOTEWORTHY In a three-dimensional microtissue model, which lowers baseline activation of cardiac fibroblasts but enables cell-cell, paracrine, and cell-extracellular matrix interactions, we demonstrate that selective cardiac fibroblast activation by enhanced Gq signaling, a pathophysiological trigger in the diseased heart, modulates cardiomyocyte electrical activity, leading to proarrhythmogenic automaticity.
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Affiliation(s)
- C M Kofron
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - T Y Kim
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - M E King
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - A Xie
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - F Feng
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - E Park
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - Z Qu
- Department of Medicine, University of California, Los Angeles, California
| | - B-R Choi
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
| | - U Mende
- Cardiovascular Research Center, Cardiovascular Institute, Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island; and
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Park Y, Son D, Park K, Park E, Choi Y. FACTORS AFFECTING EARLY DETECTION OF MENTAL HEALTH PROBLEMS OF THE ELDERLY AND SERVICE USE IN KOREA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y. Park
- Kangnam University, Yongin, Gyunggido, Korea (the Republic of),
| | - D. Son
- Yongin Songdam College, Yongin, Gyunggido, Korea (the Republic of),
| | - K. Park
- Yonsei University SSK Research Group, Seoul, Korea (the Republic of),
| | - E. Park
- Kangnam University Graduate School of Social Welfare, Yongin, Gyunggido, Korea (the Republic of),
| | - Y. Choi
- Yonsei University Graduate School of Social Welfare, Seoul, Korea (the Republic of)
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Kim J, Han S, Lee Y, Park E. RELIGION AND HOPELESSNESS AMONG KOREAN OLDER ADULTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J. Kim
- Sungkyunkwan University, Seoul, Korea (the Republic of),
| | - S. Han
- Sungkyunkwan University, Seoul, Korea (the Republic of),
| | - Y. Lee
- Sungkyunkwan University, Seoul, Korea (the Republic of),
| | - E. Park
- Daejeon-Sejong Regional Council, Daejeon, Korea (the Republic of)
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Barretto T, Park E, Liu E, Gauthier-Fisher A, Gallagher D, Librach C, Baker A. Blood brain barrier integrity and edema formation after moderate traumatic brain injury is improved with human umbilical cord perivascular cell therapy. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.298] [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 J, Piao M, Park E, Yun S, Lee J, Lee S. 444 Reactive oxygen species induce Th2 allergic inflammation in the skin by activating PI3K-HIF-α pathway. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.463] [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: 10/19/2022]
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Choi J, Yun S, Lee J, Piao M, Park E, Lee S. 445 A set of plant essential oils have antioxidant activity in ultraviolet B-irradiated epidermal keratinocytes by upregulating antioxidant and detoxifying enzymes. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.464] [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: 10/19/2022]
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Kwon S, Kang S, Park C, Jung S, Park E, Lee J, Kim S, Woo H. P01.18 Recurrent glioblastomas reveal molecular subtypes associated with mechanistic implications of drug-resistance. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.094] [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: 11/12/2022] Open
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47
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Kim YH, Park E, Lee JS, Chang WH, Lee A. Effect of ipsilesional anodal tDCS with contralesional low-frequency rTMS for post-stroke motor impairment. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.316] [Citation(s) in RCA: 2] [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: 11/15/2022] Open
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Chang W, Park E, Cho JW, Youn JY, Kim SW, Kim Y, Lee A, Kim YH. P029 Effects of dual-mode non-invasive brain stimulation on freezing of gait in patients with Parkinson’s disease. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2016.10.157] [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: 10/20/2022]
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49
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Lee J, Park E, Lee A, Chang W, Kim D, Kim Y. Functional network reorganization by dual-mode noninvasive brain stimulation in stroke patients. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.310] [Citation(s) in RCA: 2] [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: 11/25/2022] Open
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Kim A, Im M, Park E, Ma J. 17P Ethanol extract of Lophatheri Herba exhibits in vitro and in vivo anti-metastatic and anti-angiogenic activities in malignant cancer cells. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw573.016] [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: 11/13/2022] Open
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