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Shin J, Lee JH, Kim NY. Analysis of Factors Related to Domestic Patient Safety Incidents Using Decision Tree Technique. Risk Manag Healthc Policy 2023; 16:1467-1476. [PMID: 37575685 PMCID: PMC10422998 DOI: 10.2147/rmhp.s421167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023] Open
Abstract
Purpose To address the increasing number of patient safety incidents, their scope and extent should be assessed and the situations in which they occur determined. This study employed a decision tree analysis based on patient safety incident cases to identify groups at high risk for adverse patient safety incidents and provide data to develop prevention strategies for minimizing their occurrence or recurrence. Methods In total, 8934 patient safety incidents were analyzed using the "2021 Patient Safety Report Data", which were systematically collected by the Korea Institute for Healthcare Accreditation. A decision tree analysis (Chi-square Automatic Interaction Detection) was employed to identify the characteristics associated with the degree of risk for patient safety incidents. Results The groups most vulnerable to adverse events were those who experienced healthcare-associated infections (HAI) in long-term care facilities, followed by those experiencing HAI in tertiary hospitals, general hospitals, or clinics, and those experiencing fall-related events in neuropsychiatry departments of tertiary hospitals, general hospitals, or clinics. Conclusion The most important factor in the degree of harm in patient safety accidents was the type of accident, followed by the type of medical institution, and then the treatment department. Particularly, HAI and falls are the most important factors determining the degree of harm in patient safety accidents.
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Affiliation(s)
- Jieun Shin
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Ji-Hoon Lee
- Department of Biomedical Informatics, College of Medicine, Konyang University, Daejeon, Republic of Korea
| | - Nam-Yi Kim
- Department of Nursing, Konyang University, Daejeon, Republic of Korea
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Kim YH, Priyadarshi R, Kim JW, Kim J, Alekseev DG, Rhim JW. 3D-Printed Pectin/Carboxymethyl Cellulose/ZnO Bio-Inks: Comparative Analysis with the Solution Casting Method. Polymers (Basel) 2022; 14:4711. [PMID: 36365704 PMCID: PMC9657909 DOI: 10.3390/polym14214711] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 07/22/2023] Open
Abstract
Bio-inks consisting of pectin (Pec), carboxymethyl cellulose (CMC), and ZnO nanoparticles (ZnO) were used to prepare films by solution casting and 3D-printing methods. Field emission scanning electron microscopy (FE-SEM) was conducted to observe that the surface of samples made by 3D bioprinter was denser and more compact than the solution cast samples. In addition, Pec/CMC/ZnO made by 3D-bioprinter (Pec/CMC/ZnO-3D) revealed enhanced water vapor barrier, hydrophobicity, and mechanical properties. Pec/CMC/ZnO-3D also showed strong antimicrobial activity within 12 h against S. aureus and E. coli O157: H7 bacterial strains compared to the solution cast films. Further, the nanocomposite bio-inks used for 3D printing did not show cytotoxicity towards normal human dermal fibroblast (NDFB) cells but enhanced the fibroblast proliferation with increasing exposure concentration of the sample. The study provided two important inferences. Firstly, the 3D bioprinting method can be an alternative, better, and more practical method for fabricating biopolymer film instead of solution casting, which is the main finding of this work defining its novelty. Secondly, the Pec/CMC/ZnO can potentially be used as 3D bio-inks to fabricate functional films or scaffolds and biomedical applications.
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Affiliation(s)
- Yeon Ho Kim
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
- RokitHealth Care Ltd., 9, Digital-ro 10-gil, Geumcheon-gu, Seoul 08514, Korea
| | - Ruchir Priyadarshi
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
| | - Jin-Wook Kim
- RokitHealth Care Ltd., 9, Digital-ro 10-gil, Geumcheon-gu, Seoul 08514, Korea
| | - Jangwhan Kim
- RokitHealth Care Ltd., 9, Digital-ro 10-gil, Geumcheon-gu, Seoul 08514, Korea
| | - Denis G. Alekseev
- Samara State Medical University, Ulitsa Artsybushevskaya, 171, Samara 443001, Russia
| | - Jong-Whan Rhim
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea
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Jang YJ, Lee C, Moon YH, Choe S. Solar-Driven Syngas Production Using Al-Doped ZnTe Nanorod Photocathodes. Materials (Basel) 2022; 15:3102. [PMID: 35591437 PMCID: PMC9103245 DOI: 10.3390/ma15093102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/14/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023]
Abstract
Syngas, traditionally produced from fossil fuels and natural gases at high temperatures and pressures, is an essential precursor for chemicals utilized in industry. Solar-driven syngas production can provide an ideal pathway for reducing energy consumption through simultaneous photoelectrochemical CO2 and water reduction at ambient temperatures and pressures. This study performs photoelectrochemical syngas production using highly developed Al-doped ZnTe nanorod photocathodes (Al:ZnTe), prepared via an all-solution process. The facile photo-generated electrons are transferred by substitutional Al doping on Zn sites in one-dimensional arrays to increase the photocurrent density to -1.1 mA/cm2 at -0.11 VRHE, which is 3.5 times higher than that for the pristine ZnTe. The Al:ZnTe produces a minor CO (FE ≈ 12%) product by CO2 reduction and a major product of H2 (FE ≈ 60%) by water reduction at -0.11 VRHE. Furthermore, the product distribution is perfectly switched by simple modification of Au deposition on photocathodes. The Au coupled Al:ZnTe exhibits dominant CO production (FE ≈ 60%), suppressing H2 evolution (FE ≈ 15%). The strategies developed in this study, nanostructuring, doping, and surface modification of photoelectrodes, can be applied to drive significant developments in solar-driven fuel production.
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Affiliation(s)
- Youn Jeong Jang
- Department of Chemical Engineering, Hanyang University, Seongdong-gu, Seoul 04763, Korea; (C.L.); (Y.H.M.); (S.C.)
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Park KR, Yun JS, Park MH, Jung YY, Yeo IJ, Nam KT, Kim HD, Song JK, Choi DY, Park PH, Han SB, Yun HM, Hong JT. Loss of parkin reduces lung tumor development by blocking p21 degradation. PLoS One 2019; 14:e0217037. [PMID: 31112565 PMCID: PMC6528990 DOI: 10.1371/journal.pone.0217037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 05/02/2019] [Indexed: 12/24/2022] Open
Abstract
Several epidemiological studies have demonstrated the reciprocal relationship between the development of cancer and Parkinson’s disease (PD). However, the possible mechanisms underlying this relationship remain unclear. To identify this relationship, we first compared lung tumor growth in parkin knockout (KO) mice and wild-type (WT) mice. Parkin KO mice showed decreased lung tumor growth and increased expression of p21, a cell cycle arrester, as compared with WT mice. We also found that parkin interacts with p21, resulting in its degradation; however, parkin KO, knockdown, as well as mutation (R275W or G430D) reduced the degradation of p21. We investigated whether parkin KO increases the association of p21 with proliferating cell nuclear antigen (PCNA) or CDK2 by reducing p21 degradation, and, thus, arresting the cell cycle. The interaction between p21 and PCNA or CDK2 was also enhanced by parkin knockdown, and this increased interaction induced sub G0/G1 arrest, leading to cell death. Therefore, our data indicate that parkin KO reduces the development of lung tumors via cell cycle arrest by blocking the degradation of p21. These findings suggest that PD could be associated with lower lung cancer incidence.
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Affiliation(s)
- Kyung-Ran Park
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Dongdaemun-Gu, Seoul, Republic of Korea
| | - Jae Suk Yun
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Yu Yeon Jung
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - In Jun Yeo
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Kyung Tak Nam
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Hae Deun Kim
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Ju Kyoung Song
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Dong-Young Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea
| | - Sang-Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
| | - Hyung-Mun Yun
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Dongdaemun-Gu, Seoul, Republic of Korea
- * E-mail: (JTH); (HMY)
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, Osong-eup, Heungduk-gu, Cheongju, Chungbuk, Republic of Korea
- * E-mail: (JTH); (HMY)
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Hong HJ, Lim HX, Song JH, Lee A, Kim E, Cho D, Cohen EP, Kim TS. Aminoacyl-tRNA synthetase-interacting multifunctional protein 1 suppresses tumor growth in breast cancer-bearing mice by negatively regulating myeloid-derived suppressor cell functions. Cancer Immunol Immunother 2016; 65:61-72. [PMID: 26613952 PMCID: PMC11029743 DOI: 10.1007/s00262-015-1777-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 11/18/2015] [Indexed: 12/12/2022]
Abstract
Myeloid-derived suppressor cells (MDSCs) are one of the most important cell types that contribute to negative regulation of immune responses in the tumor microenvironment. Recently, aminoacyl-tRNA synthetase-interacting multifunctional protein 1 (AIMP1), a novel pleiotropic cytokine, was identified as an antitumor protein that inhibits angiogenesis and induces antitumor responses. However, the effect of AIMP1 on MDSCs in the tumor environment remains unclear. In the present study, we demonstrated that AIMP1 significantly inhibited tumor growth in 4T1 breast cancer-bearing mice and reduced MDSCs population of tumor sites and spleens of tumor-bearing mice. AIMP1 reduced expansion of MDSCs from bone marrow-derived cells in the tumor-conditioned media. AIMP1 also negatively regulated suppressive activities of MDSCs by inhibiting IL-6 and NO production, and Arg-1 expression. Furthermore, treatment of breast cancer-bearing mice with AIMP1 decreased the capacity of MDSCs to suppress T cell proliferation and Treg cell induction. Western blot and inhibition experiments showed that downregulation of MDSCs functions by AIMP1 may result from attenuated activation of STATs, Akt, and ERK. These findings indicate that AIMP1 plays an essential role in negative regulation of suppressive functions of MDSCs. Therefore, it has a significant potential as a therapeutic agent for cancer treatment.
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Affiliation(s)
- Hye-Jin Hong
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea
| | - Hui Xuan Lim
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea
| | - Ju Han Song
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea
| | - Arim Lee
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea
| | - Eugene Kim
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea
| | - Daeho Cho
- Division of Life Science, Sookmyung Women's University, Seoul, 140-742, Republic of Korea
| | - Edward P Cohen
- Department of Microbiology and Immunology, University of Illinois College of Medicine, Chicago, IL, 60612, USA
| | - Tae Sung Kim
- Division of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Room 607, Hana Science Building, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-701, Republic of Korea.
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