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Lee S, Park JB, Cho YJ, Ryu HG, Jang EJ. P3429A novel prediction model for mortality after cardiac surgery using institutional case volume. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Purpose
A number of risk prediction models have been developed to identify short term mortality after cardiovascular surgery. Most models include patient characteristics, laboratory data, and type of surgery, but no consideration for the amount of surgical experience. With numerous reports on the impact of case volume on patient outcome after high risk procedures, we attempted to develop a risk prediction models for in-hospital and 1-year mortality that takes institutional case volume into account.
Methods
We identified adult patients who underwent cardiac surgery from January 2008 to December 2017 from the National Health Insurance Service (NHIS) database by searching for patients with procedure codes of coronary artery bypass grafting, valve surgery, and surgery on thoracic aorta during the hospitalization. Study subjects were randomly assigned to either the derivation cohort or the validation cohort. In-hospital mortality and 1-year mortality data were collected using the NHIS database. Risk prediction models were developed from the derivation cohort using Cox proportional hazards regression. The prediction performances of models were evaluated in the validation cohort.
Results
The models developed in this study demonstrated fair discrimination for derivation cohort (N=22,004, c-statistics, 0.75 for in-hospital mortality; 0.73 for 1-year mortality) and acceptable calibration in the validation cohort. (N=22,003, Hosmer-Lemeshow χ2-test, P=0.08 and 0.16, respectively). Case volume was the key factor of mortality prediction models after cardiac surgery. (50≤ x <100 case per year. 100≤ x <200 case per year, ≥200 case per year are correlated with OR 3.29, 2.49, 1.85 in in-hospital mortality, 2.76, 1.99, 1.69 in 1-year mortality respectively, P value <0.001.)
Annual case volume as risk factor Variables In-hospital mortality 1-year mortality OR (95% CI) p-value OR (95% CI) p-value Annual case-volume (reference: ≥200) – – 100–200 1.69 (1.48, 1.93) <0.001 1.85 (1.58, 2.18) <0.001 50–100 1.99 (1.75, 2.25) <0.001 2.49 (2.15, 2.89) <0.001 <50 2.76 (2.44, 3.11) <0.001 3.29 (2.85, 3.79) <0.001 OR: Odds ratio; CI: confidence interval; Ref: Reference.
Discrimination and calibration
Conclusion
We developed and validated new risk prediction models for in-hospital and 1-year mortality after cardiac surgery using the NHIS database. These models may provide useful guides to predict mortality risks of patients with basic information and without laboratory findings.
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Affiliation(s)
- S Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - Y J Cho
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - H G Ryu
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - E J Jang
- Andong National University, Department of Information Statistics, Andong, Korea (Republic of)
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Cho JM, Lee SR, Sun J, Tsubaki N, Jang EJ, Bae JW. Highly Ordered Mesoporous Fe2O3–ZrO2 Bimetal Oxides for an Enhanced CO Hydrogenation Activity to Hydrocarbons with Their Structural Stability. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01989] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jae Min Cho
- School
of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Sae Rom Lee
- School
of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Jian Sun
- Dalian
National Laboratory for Clean Energy, Dalian Institute of Chemical
Physics (DICP), Chinese Academy of Sciences, Dalian 116023, China
| | - Noritatsu Tsubaki
- Department
of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan
| | - Eun Joo Jang
- Material Research & Development Center, Samsung Advanced Institute of Technology (SAIT), Suwon, Gyeonggi-do 449-901, Republic of Korea
| | - Jong Wook Bae
- School
of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro,
Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
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Kim D, Son JS, Lim H, Lee JH, Jang EJ. The tip fracture of the Coopdech bronchial blocker during insertion in the patient with lung surgery. Korean J Anesthesiol 2015; 67:S7-8. [PMID: 25598915 PMCID: PMC4295989 DOI: 10.4097/kjae.2014.67.s.s7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Deokkyu Kim
- Department of Anesthesiology and Pain Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Ji-Seon Son
- Department of Anesthesiology and Pain Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Hyungsun Lim
- Department of Anesthesiology and Pain Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Jun Ho Lee
- Department of Anesthesiology and Pain Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Eun Joo Jang
- Department of Anesthesiology and Pain Medicine, Chonbuk National University Medical School and Hospital, Jeonju, Korea
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Jang EJ, Jeong H, Kang JO, Kim NJ, Kim MS, Choi SH, Yoo SE, Hong JH, Bae MA, Hwang ES. TM-25659 enhances osteogenic differentiation and suppresses adipogenic differentiation by modulating the transcriptional co-activator TAZ. Br J Pharmacol 2012; 165:1584-94. [PMID: 21913895 DOI: 10.1111/j.1476-5381.2011.01664.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND PURPOSE The transcriptional co-activator with PDZ-binding motif (TAZ) is characterized as a transcriptional modulator of mesenchymal stem cell differentiation into osteoblasts and adipocytes. Moreover, increased TAZ activity in the nucleus enhances osteoblast differentiation and suppresses adipocyte development by interacting with runt-related transcription factor 2 (RUNX2) and PPARγ, respectively. Therefore, it would be of interest to identify low MW compounds that modulate nuclear TAZ activity. EXPERIMENTAL APPROACH High-throughput screening was performed using a library of low MW compounds in order to identify TAZ modulators that enhance nuclear TAZ localization. The effects and molecular mechanisms of a TAZ modulator have been characterized in osteoblast and adipocyte differentiation. KEY RESULTS We identified 2-butyl-5-methyl-6-(pyridine-3-yl)-3-[2'-(1H-tetrazole-5-yl)-biphenyl-4-ylmethyl]-3H-imidazo[4,5-b]pyridine] (TM-25659) as a TAZ modulator. TM-25659 enhanced nuclear TAZ localization in a dose-dependent manner and attenuated PPARγ-mediated adipocyte differentiation by facilitating PPARγ suppression activity of TAZ. In addition, TAZ-induced RUNX2 activity activation was further increased in osteoblasts, causing increased osteoblast differentiation. Accordingly, TM-25659 suppressed bone loss in vivo and decreased weight gain in an obesity model. After oral administration, TM-25659 had a favourable pharmacokinetic profile. CONCLUSION AND IMPLICATIONS TM-25659 stimulated nuclear TAZ localization and thus caused TAZ to suppress PPARγ-dependent adipogenesis and enhance RUNX2-induced osteoblast differentiation in vitro and in vivo. Our data suggest that TM-25659 could be beneficial in the control of obesity and bone loss.
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Affiliation(s)
- E J Jang
- College of Pharmacy and Division of Life and Pharmaceutical Sciences and Center for Cell Signaling and Drug Discovery Research, Ewha Womans University, Seoul Korea
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Jang EJ, Lee JY, Yoon TY. Milia-like Idiopathic Calcinosis Cutis Occurring in a Toddler Born as a Premature Baby. Ann Dermatol 2011; 23:490-2. [PMID: 22148017 PMCID: PMC3229943 DOI: 10.5021/ad.2011.23.4.490] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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: 04/14/2010] [Revised: 11/22/2010] [Accepted: 11/22/2010] [Indexed: 11/30/2022] Open
Abstract
Milia-like idiopathic calcinosis cutis (MICC) is characterized by smooth, firm, whitish papules resembling milia. Histologically, it appears as a well-defined, round, basophilic nodule within the upper dermis. Although the etiology and treatment remain unclear, it may resolve spontaneously. Some cases have been associated with Down syndrome, and the mean age of MICC patients was 9.9 years old. Herein, we report a rare case of MICC that was not associated with Down syndrome. Noticeably, the patient, a toddler, was born as a premature baby and had an ischemic injury on the right foot at birth. However, the lesions appeared on both feet, including the non-injured left foot. Otherwise he was healthy. After a 21-month follow-up period, the lesions had almost disappeared without any treatment.
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Affiliation(s)
- Eun Joo Jang
- Department of Dermatology, School of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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Abstract
Granuloma annulare (GA) is a common, benign, chronic inflammatory disorder, which is characterized by grouped papules in an enlarging annular shape. It has been described in several clinical subtypes, including localized, generalized, subcutaneous, perforating, and erythematous types. Even though generalized, subcutaneous, and perforating types of GA are unusual, there are several reports of those types. However, erythematous or patch GA, has not been reported yet in the Korean literature. Herein, we report a 42-year-old woman with pruritic erythematous patches, which occurred on the extremities without preceding event, and showed typical clinical and histopatologic findings of erythematous GA.
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Affiliation(s)
- Eun Joo Jang
- Department of Dermatology, School of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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Jang EJ, Lee JY, Kim MK, Yoon TY. Warty dyskeratoma involving two adjoining follicles. Ann Dermatol 2011; 23:98-100. [PMID: 21738375 DOI: 10.5021/ad.2011.23.1.98] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 04/14/2010] [Revised: 04/28/2010] [Accepted: 05/04/2010] [Indexed: 11/08/2022] Open
Abstract
Warty dyskeratoma (WD) is a rare epidermal tumor that frequently arises as a papule or nodule on the head or neck of middle-aged or older persons. Histologically, it shows a cup-shaped keratin-filled invagination of an acanthotic epidermis, suprabasilar clefting with villi projecting into the clefts and acantholytic dyskeratotic cells are also present. The changes almost always involve a single hair follicle. We describe a distinctive case of WD that showed involvement of two adjoining follicles within a solitary lesion.
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Affiliation(s)
- Eun Joo Jang
- Department of Dermatology, School of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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Kim TJ, Jang EJ, Lee JI. Vaccination of rock bream, Oplegnathus fasciatus (Temminck & Schlegel), using a recombinant major capsid protein of fish iridovirus. J Fish Dis 2008; 31:547-551. [PMID: 18577102 DOI: 10.1111/j.1365-2761.2007.00853.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- T J Kim
- Biotherapy Human Resources Center, Chonnam National University, Gwangju, Korea
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Hwang SY, Kim SH, Jang EJ, Kwon NH, Park YK, Koo HC, Jung WK, Kim JM, Park YH. Novel multiplex PCR for the detection of the Staphylococcus aureus superantigen and its application to raw meat isolates in Korea. Int J Food Microbiol 2007; 117:99-105. [PMID: 17439826 DOI: 10.1016/j.ijfoodmicro.2007.02.013] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Revised: 02/09/2007] [Accepted: 02/27/2007] [Indexed: 11/24/2022]
Abstract
A multiplex PCR assay that allows for the rapid screening of the 19 genes that encode staphylococcal enterotoxins (SEs) (sea to see, and seg to sei), SE-like (SEl) toxins (sej to ser, and seu), and toxic shock syndrome toxin-1 (TSST-1) (tst) was developed in this study. These toxins are included in the pyrogenic toxin superantigen (PTSAg) family and are responsible for many diseases such as staphylococcal food poisoning (SFP) and TSS. The primers were designed based on dual priming oligonucleotide (DPO) technology to detect all of the 19 SAg genes in three sets of PCR. The developed multiplex PCR was applied to 143 Staphylococcus aureus strains isolated from pork and chicken meat in Korea. Almost 50% of the strains possessed at least one of the 19 SAg genes. The most frequently found genes were seg, sei, sem, and sen (53 isolates, 37%), which were often found simultaneously in the same isolate. In those isolates, the seo (39 isolates, 27%) or seu (6 isolates, 4%) genes were frequently found together and this combination (seg, sei, sem, sen, and seo or seu) was considered to be a part of the enterotoxin gene cluster (egc). The sea gene (10 isolates, 7%) was the gene most frequently detected out of all the classical SE genes (sea to see). Although these classical SEs are considered to be major etiological factors in SFP, newly described SE or SEl genes (seg to ser, and seu) were more frequently detected than the classical SE genes in this study. There was no isolate detected containing the seb, sec, sek, sel, or seq genes. S. aureus possessing mobile genetic elements known to encode these SAg genes, such as egc, were presumed to be widely distributed among pork and chicken meats in Korea. The multiplex PCR developed in this study could be applied to the investigation of SAg genes in S. aureus strains isolated from various sources.
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Affiliation(s)
- Sun Young Hwang
- Department of Microbiology, College of Veterinary Medicine and BK21 Program for Veterinary Science, Seoul National University, Sillim-dong, Gwanak-gu, Seoul 151-742, Republic of Korea
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Bae JW, Jang EJ, Lee BI, Lee JS, Lee KH. Effects of Tin on Product Distribution and Catalyst Stability in Hydrodechlorination of CCl4 over Pt-Sn/γ-Al2O3. Ind Eng Chem Res 2007. [DOI: 10.1021/ie061334l] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jong Wook Bae
- Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology (KRICT), P. O. BOX 107, Yuseong, Daejeon 305-343, South Korea, Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Yongin 446-712, South Korea, and Department of Chemical Engineering and School of Environmental Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea
| | - Eun Joo Jang
- Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology (KRICT), P. O. BOX 107, Yuseong, Daejeon 305-343, South Korea, Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Yongin 446-712, South Korea, and Department of Chemical Engineering and School of Environmental Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea
| | - Byoung In Lee
- Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology (KRICT), P. O. BOX 107, Yuseong, Daejeon 305-343, South Korea, Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Yongin 446-712, South Korea, and Department of Chemical Engineering and School of Environmental Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea
| | - Jae Sung Lee
- Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology (KRICT), P. O. BOX 107, Yuseong, Daejeon 305-343, South Korea, Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Yongin 446-712, South Korea, and Department of Chemical Engineering and School of Environmental Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea
| | - Kyung Hee Lee
- Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology (KRICT), P. O. BOX 107, Yuseong, Daejeon 305-343, South Korea, Samsung Advanced Institute of Technology (SAIT), Mt. 14-1, Nongseo-dong, Yongin 446-712, South Korea, and Department of Chemical Engineering and School of Environmental Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Pohang 790-784, South Korea
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Bae JW, Jang EJ, Jo DH, Lee JS, Lee KH. Liquid-phase hydrodechlorination of CCl4 in a medium of ethanol with co-production of acetal and diethyl carbonate. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1381-1169(03)00185-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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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Abstract
Nasal absorption of procyclidine, a synthetic anticholinergic compound, was investigated in Wistar rats and Beagle dogs. The dosing solution was prepared by dissolving 14C-procyclidine in 50% ethanolic saline. The dosing solution was administered intravenously and intranasally to rats at a dose of 0.6 mg/kg (i.e., 60 microl/kg in the form of a 1% w/v solution), and intravenously, orally and intranasally to dogs at a dose of 0.3 mg/kg (i.e., 6 microl/kg in the form of a 5% w/v solution). Blood samples were taken from an artery of the animals through the catheter for periods of 1200 (for rats) and 1,440 min (for dogs), and the radioactivity in the samples was determined by liquid scintillation counting. The nasal bioavailability of procyclidine in rats and dogs, based on the radioactivity, was calculated to be 81.1 and 98.6%, respectively. In both rats and dogs, the plasma profiles of procyclidine following nasal administration were very close to those following intravenous administration, leading to nearly superimposable profiles between the two protocols. In dogs, nasal administration resulted in significantly higher plasma concentrations during the first 30 min period compared to oral administration, suggesting the superiority of the nasal route over the oral route in terms of a prompt expression of the pharmacological effect of the drug. The results obtained in this study indicate that procyclidine is rapidly and nearly completely absorbed via the nasal route. In conclusion, nasal administration represents a viable alternative to intravenous administration in the case of procyclidine.
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Affiliation(s)
- E J Jang
- Department of Pharmaceutics, College of Pharmacy, Seoul National University, Kwanak-gu, Seoul, Korea
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