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Park EJ, Li K, Kang MS, Choi JW, Baek B, Yang YK, Cho AE, Lee BS. Perfluorooctanoic acid inhibits cell proliferation through mitochondrial damage. Toxicol In Vitro 2024; 97:105810. [PMID: 38513818 DOI: 10.1016/j.tiv.2024.105810] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/08/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
Grown evidence has shown that the liver and reproductive organs were the main target organs of perfluorooctanoic acid (PFOA). Herein, we studied a toxic mechanism of PFOA using HeLa Chang liver epithelial cells. When incubated with PFOA for 24 h or 48 h, cell proliferation was inhibited in a concentration- and time-dependent fashion, but interestingly, the feature of dead cells was not notable. Mitochondrial volume was increased with concentration and time, whereas the mitochondrial membrane potential and produced ATP amounts were significantly reduced. Autophagosome-like vacuoles and contraction of the mitochondrial inner membrane were observed in PFOA-treated cells. The expression of acetyl CoA carboxylase (ACC) and p-ACC proteins rapidly decreased, and that of mitochondrial dynamics-related proteins increased. The expression of solute carrier family 7 genes, ChaC glutathione-specific gamma-glutamylcyclotransferase 1, and 5S ribosomal RNA gene was up-regulated the most in cells exposed to PFOA for 24 h, and the KEGG pathway analysis revealed that PFOA the most affected metabolic pathways and olfactory transduction. More importantly, PPAR alpha, fatty acid binding protein 1, and CYP450 family 1 subfamily A member 1 were identified as the target proteins for binding between PFOA and cells. Taken together, we suggest that disruption of mitochondrial integrity and function may contribute closely to PFOA-induced cell proliferation inhibition.
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Affiliation(s)
- Eun-Jung Park
- Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea.
| | - Kexin Li
- Department of Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - Jae-Won Choi
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - BoSung Baek
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - Yu-Kyeong Yang
- Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, 02447, Republic of Korea
| | - Art E Cho
- Department of Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Byoung-Seok Lee
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
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Hwang SH, Lee YJ, Choi YH, Huh DA, Kang MS, Moon KW. Long-term effects of the Hebei Spirit oil spill on the prevalence and incidence of allergic disorders. Sci Total Environ 2024; 912:168801. [PMID: 38008335 DOI: 10.1016/j.scitotenv.2023.168801] [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] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
The Hebei Spirit oil spill accident occurred in December 2007, approximately 10 km off the coast of Taean, South Korea, a location notably close to residential areas. Crude oil substances have been detected in various environmental mediums since the accident, yet previous studies have primarily focused on the acute effects of oil exposure due to the short latency period of allergic diseases. Therefore, this study evaluated the long-term effects of oil spill exposure on allergic disorders. Our study included adult residents who had participated in the Health Effects Research on Hebei Spirit Oil Spill (HEROS) study up to five years post-incident, which was a prospective cohort to monitor the health status of Taean residents. We used two indicators to assess oil spill exposure, namely the distance from the initial contaminated coastline to each participant's residence and the number of days participants had engaged in oil clean-up work. Current symptoms such as asthma, allergic rhinitis, atopic dermatitis, allergic conjunctivitis, and multimorbidity were considered allergic disorders. In the baseline survey, the prevalence of asthma, allergic rhinitis, atopic dermatitis, allergic conjunctivitis, and allergic multimorbidity symptoms was associated with both exposure indicators; however, these associations were not observed in the two consecutive surveys. Significant longitudinal associations between oil spill exposure indicators and the four allergic disorders, as well as multimorbidity incidences, were observed during a five-year follow-up period. Our results suggest that oil spill exposure can affect acute and long-term allergic symptoms in residents near the accident site.
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Affiliation(s)
- Se Hyun Hwang
- Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yong-Jin Lee
- Regional Environmental Health Center, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea; Department of Occupational & Environmental Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Yun-Hee Choi
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R & E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Da-An Huh
- Institute of Health Sciences, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea.
| | - Min-Sung Kang
- Institute of Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Kyong Whan Moon
- Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R & E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
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Choi YH, Kim L, Huh DA, Moon KW, Kang MS, Lee YJ. Association between oil spill clean-up work and thyroid cancer: Nine years of follow-up after the Hebei Spirit oil spill accident. Mar Pollut Bull 2024; 199:116041. [PMID: 38237246 DOI: 10.1016/j.marpolbul.2024.116041] [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] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 02/08/2024]
Abstract
In 2007, an unprecedented oil spill occurred in Taean, Korea. Although crude oil contains chemicals that could increase thyroid cancer risk, few studies have examined the long-term effects of oil exposure during clean-up and thyroid cancer incidence. We investigated the long-term thyroid cancer incidence among participants involved in clean-up work. 1798 participants engaged in at least two surveys since the baseline was tracked from 2008 to 2018. Participants reported the days they participated in oil clean-up works and cancer diagnoses. Cox proportional hazard models were used to estimate the hazard ratios between clean-up work duration and thyroid cancer. Over the 9-year follow-up, 30 thyroid cancer cases were diagnosed. A positive association was observed between clean-up duration and thyroid cancer risk. This effect was more pronounced among residents living <50 m from traffic roads. Our results indicate that crude oil clean-up work participation may increase the thyroid cancer risk.
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Affiliation(s)
- Yun-Hee Choi
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Lita Kim
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Da-An Huh
- Institute of Health Sciences, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea.
| | - Kyong Whan Moon
- BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Min-Sung Kang
- Institute of Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Yong-Jin Lee
- Regional Environmental Health Center, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea; Department of Occupational & Environmental Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea.
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Kang MS, Yu-Chin C. Concurrent expectation and experience-based metacontrol: EEG insights and the role of working memory capacity. Cogn Affect Behav Neurosci 2024:10.3758/s13415-024-01163-2. [PMID: 38291309 DOI: 10.3758/s13415-024-01163-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/16/2024] [Indexed: 02/01/2024]
Abstract
We investigated the simultaneous influence of expectation and experience on metacontrol, which we define as the instantiation of context-specific control states. These states could entail heightened control states in preparation for frequent task switching or lowered control states for task repetition. Specifically, we examined whether "expectations" regarding future control demands prompt proactive metacontrol, while "experiences" with items associated with specific control demands facilitate reactive metacontrol. In Experiment 1, we utilized EEG with a high temporal resolution to differentiate between brain activities associated with proactive and reactive metacontrol. We successfully observed cue-locked and image-locked ERP patterns associated with proactive and reactive metacontrol, respectively, supporting concurrent instantiation of two metacontrol modes. In Experiment 2, we focused on individual differences to investigate the modulatory role of working memory capacity (WMC) in the concurrent instantiation of two metacontrol modes. Our findings revealed that individuals with higher WMC exhibited enhanced proactive metacontrol, indicated by smaller response time variability (RTV). Additionally, individuals with higher WMC showed a lower tendency to rely on reactive metacontrol, indicated by a smaller item-specific switch probability (ISSP) effect. In conclusion, our results suggest that proactive and reactive metacontrol can coexist, but their interplay is influenced by individuals' WMC. Higher WMC promotes the use of proactive metacontrol while attenuating reliance on reactive metacontrol. This study provides insights into the interplay between proactive and reactive metacontrol and highlights the impact of WMC on their concurrent instantiation.
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Affiliation(s)
- M S Kang
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA.
| | - C Yu-Chin
- Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA
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Kang MS, Chae WR, Lee YJ, Moon KW. Occupational and Environmental Asbestos Exposure and Survival of Patients with Asbestos-Related Cancer: A Follow-Up Study on Patients with Malignant Mesothelioma and Asbestos-Related Lung Cancer in Korea. Toxics 2023; 12:20. [PMID: 38250976 PMCID: PMC10819260 DOI: 10.3390/toxics12010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/16/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024]
Abstract
Malignant mesothelioma and asbestos-related lung cancer are typically associated with a poor prognosis. However, it has been observed that some patients with these cancers survive significantly longer than the average survival period. While many preliminary studies have investigated factors influencing patient survival, the specific impact of asbestos exposure has not been thoroughly explored. We followed up with 546 patients with malignant mesothelioma and 902 patients with asbestos-related lung cancer, all identified as asbestos victims between 2009 and 2021. In both malignant mesothelioma and asbestos-related lung cancer, patients with occupational asbestos exposure exhibited not only shorter median survival times but also lower 3- and 5-year survival rates compared to those with environmental exposure. Additionally, a longer duration of occupational exposure and closer proximity to the source of asbestos were linked to shorter survival times and lower survival rates. Among the patients with occupational asbestos exposure, the highest hazard ratios (HRs) were observed in those who worked in the production of asbestos-containing products across both cancer types. In contrast, significant HRs were only noted in mesothelioma patients who lived near asbestos industries, slate houses, and redevelopment areas, within the environmentally exposed group.
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Affiliation(s)
- Min-Sung Kang
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea; (M.-S.K.); (Y.-J.L.)
| | - Woo-Ri Chae
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea;
| | - Yong-Jin Lee
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea; (M.-S.K.); (Y.-J.L.)
- Department of Occupational & Environmental Medicine, Soonchunhyang University, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Kyong Whan Moon
- School of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
- BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
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Park EJ, Yang MJ, Kang MS, Jo YM, Yoon C, Lee Y, Kim DW, Lee GH, Kwon IH, Kim JB. Subchronic pulmonary toxicity of ambient particles containing cement production-related elements. Toxicol Rep 2023; 11:116-128. [PMID: 37520773 PMCID: PMC10372185 DOI: 10.1016/j.toxrep.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 07/02/2023] [Accepted: 07/03/2023] [Indexed: 08/01/2023] Open
Abstract
Chronic respiratory disease is among the most common non-communicable diseases, and particulate materials (PM) are a major risk factor. Meanwhile, evidence of the relationship between the physicochemical characteristics of PM and pulmonary toxicity mechanism is still limited. Here, we collected particles (CPM) from the air of a port city adjacent to a cement factory, and we found that the CPM contained various elements, including heavy metals (such as arsenic, thallium, barium, and zirconium) which are predicted to have originated from a cement plant adjacent to the sampling site. We also delivered the CPM intratracheally to mice for 13 weeks to investigate the pulmonary toxicity of inhaled CPM. CPM-induced chronic inflammatory lesions with an increased total number of cells in the lung of mice. Meanwhile, among inflammatory mediators measured in this study, levels of IL-1β, TNF-α, CXCL-1, and IFN-γ were elevated in the treated group compared with the controls. Considering that the alveolar macrophage (known as dust cell) is a professional phagocyte that is responsible for the clearance of PM from the respiratory surfaces, we also investigated cellular responses following exposure to CPM in MH-S cells, a mouse alveolar macrophage cell line. CPM inhibited cell proliferation and formed autophagosome-like vacuoles. Intracellular calcium accumulation and oxidative stress, and altered expression of pyrimidine metabolism- and olfactory transduction-related genes were observed in CPM-treated cells. More interestingly, type I-LC3B and full-length PARP proteins were not replenished in CPM-treated cells, and cell cycle changes, apoptotic and necrotic cell death, and caspase-3 cleavage were not significantly detected in cells exposed to CPM. Taken together, we conclude that dysfunction of alveolar macrophages may contribute to CPM-induced pulmonary inflammation. In addition, given the possible transformation of heart tissue observed in CPM-treated mice, we suggest that further study is needed to clarify the systemic pathological changes and the molecular mechanisms following chronic exposure to CPM.
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Affiliation(s)
- Eun-Jung Park
- College of Medicine, Graduate School, Kyung Hee University, 02447, Republic of Korea
- Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongup 56212, Republic of Korea
| | - Min-Sung Kang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongup 56212, Republic of Korea
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Young-Min Jo
- Department of Environmental Science and Engineering, Global Campus, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Cheolho Yoon
- Ochang Center, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Yunseo Lee
- College of Medicine, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ik-Hwan Kwon
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Jin-Bae Kim
- School of Medicine, Kyung Hee University, Seoul, Republic of Korea
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Choi JW, Park CH, Lim NH, Woo MK, Kang MS, Han SW. Measurement device hacking-free mutual quantum identity authentication over a deployed optical fiber. Opt Express 2023; 31:39261-39278. [PMID: 38018009 DOI: 10.1364/oe.504224] [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] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/29/2023] [Indexed: 11/30/2023]
Abstract
Quantum identity authentication serves as a crucial technology for secure quantum communication, but its security often faces challenges due to quantum hacking of measurement devices. This study introduces a measurement-device-independent mutual quantum identity authentication (MDI MQIA) scheme capable of ensuring secure user authentication, despite the use of measurement devices vulnerable to quantum hacking. To realize the MDI MQIA scheme, we proposed and applied a modified Bell state measurement based on linear optics, enabling the probabilistic measurement of all Bell states. Furthermore, the proposed experimental setup adopted a plug-and-play architecture, thus efficiently establishing the indistinguishability of two photons prepared by the communication members. Finally, we successfully performed a proof-of-principle experimental demonstration of the proposed scheme using a field-deployed fiber, achieving quantum bit error rates of less than 3%.
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Hoost SS, Brickman AM, Manly JJ, Honig LS, Gu Y, Sanchez D, Reyes-Dumeyer D, Lantigua RA, Kang MS, Dage JL, Mayeux R. Effects of Vascular Risk Factors on the Association of Blood-Based Biomarkers with Alzheimer's Disease. Med Res Arch 2023; 11:10.18103/mra.v11i9.4468. [PMID: 38037598 PMCID: PMC10688358 DOI: 10.18103/mra.v11i9.4468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Background Comorbidities may influence the levels of blood-based biomarkers for Alzheimer's disease (AD). We investigated whether differences in risk factors or comorbid conditions might explain the discordance between clinical diagnosis and biomarker classifications in a multi-ethnic cohort of elderly individuals. Aims To evaluate the relationship of medical conditions and other characteristics, including body mass index (BMI), vascular risk factors, and head injury, with cognitive impairment and blood-based biomarkers of AD, phosphorylated tau (P-tau 181, P-tau 217), in a multi-ethnic cohort. Methods Three-hundred individuals, aged 65 and older, were selected from a prospective community-based cohort for equal representation among three racial/ethnic groups: non-Hispanic White, Hispanic/Latino and African American/Black. Participants were classified into four groups based on absence (Asym) or presence (Sym) of cognitive impairment and low (NEG) or high (POS) P-tau 217 or P-tau 181 levels, determined previously in the same cohort: (Asym/NEG, Asym/POS, Sym/NEG, Sym/POS). We examined differences in individual characteristics across the four groups. We performed post-hoc analysis examining the differences across biomarker and cognitive status. Results P-tau 217 or P-tau 181 positive individuals had lower BMI than P-tau negative participants, regardless of symptom status. Symptomatic and asymptomatic participants did not differ in terms of BMI. BMI was not a mediator of the effect of P-tau 217 or P-tau 181 on dementia. Frequencies of other risk factors did not differ between the four groups of individuals. Conclusions Participants with higher levels of P-tau 217 or P-tau 181 consistent with AD had lower BMI regardless of whether the individual was symptomatic. These findings suggest that weight loss may change with AD biomarker levels before onset of cognitive decline. They do not support BMI as a confounding variable. Further longitudinal studies could explore the relationship of risk factors with clinical diagnoses and biomarkers.
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Affiliation(s)
- SS Hoost
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - AM Brickman
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - JJ Manly
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - LS Honig
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - Y Gu
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - D Sanchez
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - D Reyes-Dumeyer
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - RA Lantigua
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
| | - MS Kang
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
| | - JL Dage
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN
- Department of Neurology, Indiana University School of Medicine, Indianapolis, IN
- Indiana Alzheimer’s Disease Research Center, Indiana University School of Medicine Indianapolis IN
| | - R Mayeux
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- G.H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, and the New York Presbyterian Hospital, New York, NY
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Park EJ, Yang MJ, Kang MS, Jo YM, Yoon C, Kim HB, Kim DW, Lee GH, Kwon IH, Park HJ, Kim JB. Subway station dust-induced pulmonary inflammation may be due to the dysfunction of alveolar macrophages: Possible contribution of bound elements. Toxicology 2023; 496:153618. [PMID: 37611816 DOI: 10.1016/j.tox.2023.153618] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/09/2023] [Accepted: 08/19/2023] [Indexed: 08/25/2023]
Abstract
With its increasing value as a means of public transportation, the health effects of the air in subway stations have attracted public concern. In the current study, we investigated the pulmonary toxicity of dust collected from an air purifier installed on the platform of the busiest subway station in Seoul. We found that the dust contained various elements which are attributable to the facilities and equipment used to operate the subway system. Particularly, iron (Fe), chromium (Cr), zirconium (Zr), barium (Ba), and molybdenum (Mo) levels were more notable in comparison with those in dust collected from the ventilation chamber of a subway station. To explore the health effects of inhaled dust, we first instilled via the trachea in ICR mice for 13 weeks. The total number of pulmonary macrophages increased significantly with the dose, accompanying hematological changes. Dust-laden alveolar macrophages and inflammatory cells accumulated in the perivascular regions in the lungs of the treated mice, and pulmonary levels of CXCL-1, TNF-α, and TGF-β increased clearly compared with the control. The CCR5 and CD54 level expressed on BAL cell membranes was also enhanced following exposure to dust, whereas the CXCR2 level tended to decrease in the same samples. In addition, we treated the dust to alveolar macrophages (known as dust cells), lysosomal and mitochondrial function decreased, accompanied by cell death, and NO production was rapidly elevated with concentration. Moreover, the expression of autophagy- (p62) and anti-oxidant (SOD-2)-related proteins increased, and the expression of inflammation-related genes was dramatically up-regulated in the dust-treated cells. Therefore, we suggest that dysfunction of alveolar macrophages may importantly contribute to dust-induced inflammatory responses and that the exposure concentrations of Cr, Fe, Mo, Zr, and Ba should be considered carefully when assessing the health risks associated with subway dust. We also hypothesize that the bound elements may contribute to dust-induced macrophage dysfunction by inhibiting viability.
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Affiliation(s)
- Eun-Jung Park
- College of Medicine, Graduate School, Kyung Hee University, 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea.
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongup 56212, Republic of Korea
| | - Min-Sung Kang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongup 56212, Republic of Korea; Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - Young-Min Jo
- Department of Environmental Science and Engineering, Global Campus, Kyung Hee University, 17104, Republic of Korea
| | - Cheolho Yoon
- Ochang Center, Korea Basic Science Institute, 28119, Republic of Korea
| | - Hyun-Bin Kim
- College of Medicine, Graduate School, Kyung Hee University, 02447, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Ik-Hwan Kwon
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Hee-Jin Park
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongup 56212, Republic of Korea
| | - Jin-Bae Kim
- Division of Cardiology, Department of Internal Medicine, Kyung-Hee University Hospital, Kyung Hee University, 02447, Republic of Korea.
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10
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Kang MS, Lee GH, Kwon IH, Yang MJ, Heo MB, Choi JW, Lee TG, Yoon CH, Baek B, Sung MC, Kim DW, Park EJ. Uptake and toxicity of cerium dioxide nanoparticles with different aspect ratio. Toxicol Lett 2022; 373:196-209. [PMID: 36464203 DOI: 10.1016/j.toxlet.2022.11.013] [Citation(s) in RCA: 2] [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: 08/04/2022] [Revised: 10/18/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022]
Abstract
Cerium dioxide nanoparticles (CeONPs) have been extensively applied in research for future energy development due to two common oxidation states on their surface. Considering that shape (aspect ratio) is a key determinant of NPs-induced toxicity, we compared the toxicity of hexagonal (H)- and rod-shaped (R)-CeONPs in mice. At 24 h after pharyngeal aspiration, both types of CeONPs recruited surrounding immune cells (monocytes and neutrophils) into the lung, and R-CeONPs induced a more severe pulmonary inflammatory response compared with H-CeONPs. To identify an indicator to predict pulmonary inflammatory responses at the cellular level, we also investigated their responses in alveolar macrophage cells. At 24 h after treatment, both types of CeONPs were mainly located within the vacuoles (partially, in the lysosome) in the cytoplasm. Mitochondrial damage, intracellular calcium accumulation, and increased NO production were observed in cells exposed to both types of CeONPs, ultimately resulting in a decrease in cell viability. More interestingly, both types of CeONPs formed multinucleated giant cells. Meanwhile, contrary to when suspended in deionized water, R-CeONPs were strongly aggregated with a negative charge in cell culture media, whereas H-CeONPs were relatively well-dispersed with a positive charge. R-CeONPs-induced lysosomal extension was also recovered by premix with negatively charged DNA, and even NPs suspended in cell culture media without cells were detected under the FACS system, suggesting interference by protein corona. Therefore, we suggest that shape (aspect ratio) is an important factor determining inhaled NPs-induced pathology and that the effect of the surface charge and protein corona should be carefully considered in interpreting results derived from in vitro tests. Furthermore, we propose that the relationship between the formation of multinucleated giant cells and the inflammatory response of inhaled CeONPs should be further studied.
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Affiliation(s)
- Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea; Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Ik Hwan Kwon
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Min Beom Heo
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Jae-Won Choi
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea; Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Tae Geol Lee
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Cheol-Ho Yoon
- Environmental Analysis Team, Korea Basic Science Institute, Seoul 28119, Republic of Korea
| | - Bosung Baek
- Toxicity Evaluation Center, Keyprime Research Company, 28161, Republic of Korea; Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Myeong-Chang Sung
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea.
| | - Eun-Jung Park
- Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea.
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11
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Huh DA, Chae WR, Choi YH, Kang MS, Lee YJ, Moon KW. Disease Latency according to Asbestos Exposure Characteristics among Malignant Mesothelioma and Asbestos-Related Lung Cancer Cases in South Korea. Int J Environ Res Public Health 2022; 19:15934. [PMID: 36498008 PMCID: PMC9738972 DOI: 10.3390/ijerph192315934] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 10/16/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Korea was one of the major consumers of asbestos in the late 1900s, and asbestos-related disease patients have been reported continuously to date, owing to long disease latency. Several studies have been conducted to predict the future incidence of malignant mesothelioma and lung cancer in Korea, but little is understood about the latency time. Therefore, the aim of this study is to estimate the latency period of malignant mesothelioma and asbestos-related lung cancer in Korea and its determinants. We obtained information from the Environmental Health Centers for Asbestos in Korea on the history of asbestos exposure and demographic characteristics of 1933 patients with malignant mesothelioma and asbestos-related lung cancer. In our study, the latency periods for malignant mesothelioma and lung cancer were 33.7 and 40.1 years, respectively. Regardless of the disease type, those with a history of exposure related to the production of asbestos-containing products or asbestos factories had the shortest latency period. In addition, we observed that those who worked in or lived near asbestos mines tended to have a relatively long disease latency. Smoking was associated with shorter latency, but no linear relationship between the lifetime smoking amount (expressed in pack years) and latent time was observed. In addition, the age of initial exposure showed a negative linear association with the latency period for mesothelioma and lung cancer.
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Affiliation(s)
- Da-An Huh
- Institute of Health Sciences, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Woo-Ri Chae
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yun-Hee Choi
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
- BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Min-Sung Kang
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Yong-Jin Lee
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea
- Department of Occupational & Environmental Medicine, Soonchunhyang University, Soonchunhyang 6-gil 31, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Kyong-Whan Moon
- BK21 FOUR R&E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
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12
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Kang MS, Lee WY, Yoon YG, Choi JW, Kim GS, Kim SH, Park NW, Lee SK. Enhanced Transverse Seebeck Coefficients in 2D/2D PtSe 2/MoS 2 Heterostructures Using Wet-Transfer Stacking. ACS Appl Mater Interfaces 2022; 14:51881-51888. [PMID: 36355622 DOI: 10.1021/acsami.2c14065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
It is very challenging to estimate thermoelectric (TE) properties when applying millimeter-scale two-dimensional (2D) transition metal dichalcogenide (TMDC) materials to TE device applications, particularly their Seebeck coefficient due to their high intrinsic electrical resistance. This paper proposes an innovative approach to measure large transverse (i.e., in-plane) Seebeck coefficients for 2D TMDC materials by placing a low resistance (LR) semimetallic PtSe2 film on high-resistance (HR) semiconducting MoS2 (>10 MΩ), whose internal resistance is too high to measure the Seebeck coefficient, forming a heterojunction structure using wet-transfer stacking. The vertically stacked LR-PtSe2 (3 nm)/HR-MoS2 (12 nm) heterostructure film exhibits a high Seebeck coefficient > 190 μV/K up to 5 K temperature difference. This unusual behavior can be explained by an additional Seebeck effect induced at the interface between the LR-2D/HR-2D heterostructure. The proposed stacked LR-PtSe2/HR-MoS2 heterostructure film offers promising phenomena 2D/2D materials that enable innovative TE device applications.
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Affiliation(s)
- Min-Sung Kang
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - Won-Yong Lee
- Division of Solid-State Electronics, Department of Electrical Engineering, Uppsala University, Uppsala75103, Sweden
| | - Young-Gui Yoon
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - Jae Won Choi
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - Si-Hoo Kim
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - No-Won Park
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
| | - Sang-Kwon Lee
- Department of Physics and Center for Berry Curvature Based New Phenomena, Chung-Ang University, Seoul06974, Republic of Korea
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13
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Kang MS, Lee GH, Yang MJ, Sung MC, Han HY, Lee BS, Baek B, Kim DW, Park EJ. Comparison of toxicity and cellular responses following pulmonary exposure to different types of nanofibers. Nanotoxicology 2022; 16:935-954. [PMID: 36803397 DOI: 10.1080/17435390.2023.2177205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Pulmonary effects of inhaled microfibers are an emerging public health concern. In this study, we investigated toxicity following pulmonary exposure to synthetic polyethylene oxide fibroin (PEONF) and silk fibroin (SFNF) nanofibers and the cellular responses. When instilled intratracheally weekly for four weeks, body weight gain was significantly reduced in female mice exposed to the higher dose of SFNF when compared with the control group. The total number of cells in the lungs was more significant in all treated groups than in the control, whereas the relative portion of neutrophils and eosinophils increased significantly only in female mice exposed to SFNF. Both types of nanofibers induced notable pathological changes and increased pulmonary expression of MCP-1α, CXCL1, and TGF-β. More importantly, blood calcium, creatinine kinase, sodium, and chloride concentration were affected significantly, showing sex- and material-dependent differences. The relative portion of eosinophils increased only in SFNF-treated mice. In addition, both types of nanofibers induced necrotic and late apoptotic cell death in alveolar macrophages after 24 h of exposure, with accompanying oxidative stress, increased NO production, cell membrane rupture, intracellular organelle damage, and intracellular calcium accumulation. Additionally, multinucleated giant cells were formed in cells exposed to PEONF or SFNF. Taken together, the findings indicate that inhaled PEONF and SFNF may cause systemic adverse health effects with lung tissue damage, showing differences by sex- and material. Furthermore, PEONF- and SFNF-induced inflammatory response may be partly due to the low clearance of dead (or damaged) pulmonary cells and the excellent durability of PEONF and SFNF.
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Affiliation(s)
- Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul, South Korea.,Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, South Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, South Korea
| | - Myeong-Chang Sung
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | | | | | - Bosung Baek
- Graduate School of Medicine, Kyung Hee University, Seoul, South Korea.,Toxicity Evaluation Center, Keyprime Research Company, Cheongju, South Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, South Korea
| | - Eun-Jung Park
- Graduate School of Medicine, Kyung Hee University, Seoul, South Korea.,Human Health and Environmental Toxins Research Center, Kyung Hee University, Seoul, South Korea
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14
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Kang MS, Kim YJ, Heo J, Rajendran S, Wang X, Bae JH, Lippman Z, Park SJ. Newly Discovered Alleles of the Tomato Antiflorigen Gene SELF PRUNING Provide a Range of Plant Compactness and Yield. Int J Mol Sci 2022; 23:ijms23137149. [PMID: 35806155 PMCID: PMC9266710 DOI: 10.3390/ijms23137149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 02/01/2023] Open
Abstract
In tomato cultivation, a rare natural mutation in the flowering repressor antiflorigen gene SELF-PRUNING (sp-classic) induces precocious shoot termination and is the foundation in determinate tomato breeding for open field production. Heterozygous single flower truss (sft) mutants in the florigen SFT gene in the background of sp-classic provide a heterosis-like effect by delaying shoot termination, suggesting the subtle suppression of determinacy by genetic modification of the florigen–antiflorigen balance could improve yield. Here, we isolated three new sp alleles from the tomato germplasm that show modified determinate growth compared to sp-classic, including one allele that mimics the effect of sft heterozygosity. Two deletion alleles eliminated functional transcripts and showed similar shoot termination, determinate growth, and yields as sp-classic. In contrast, amino acid substitution allele sp-5732 showed semi-determinate growth with more leaves and sympodial shoots on all shoots. This translated to greater yield compared to the other stronger alleles by up to 42%. Transcriptome profiling of axillary (sympodial) shoot meristems (SYM) from sp-classic and wild type plants revealed six mis-regulated genes related to the floral transition, which were used as biomarkers to show that the maturation of SYMs in the weaker sp-5732 genotype is delayed compared to sp-classic, consistent with delayed shoot termination and semi-determinate growth. Assessing sp allele frequencies from over 500 accessions indicated that one of the strong sp alleles (sp-2798) arose in early breeding cultivars but was not selected. The newly discovered sp alleles are potentially valuable resources to quantitatively manipulate shoot growth and yield in determinate breeding programs, with sp-5732 providing an opportunity to develop semi-determinate field varieties with higher yields.
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Affiliation(s)
- Min-Sung Kang
- Department of Biological Science and Institute of Basic Science, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (Y.J.K.); (J.H.); (S.R.)
| | - Yong Jun Kim
- Department of Biological Science and Institute of Basic Science, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (Y.J.K.); (J.H.); (S.R.)
| | - Jung Heo
- Department of Biological Science and Institute of Basic Science, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (Y.J.K.); (J.H.); (S.R.)
| | - Sujeevan Rajendran
- Department of Biological Science and Institute of Basic Science, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (Y.J.K.); (J.H.); (S.R.)
| | - Xingang Wang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; (X.W.); (Z.L.)
| | - Jong Hyang Bae
- Department of Horticulture Industry, Wonkwang University, Iksan 54538, Korea;
| | - Zachary Lippman
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; (X.W.); (Z.L.)
- Howard Hughes Medical Institute, Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Soon Ju Park
- Department of Biological Science and Institute of Basic Science, Wonkwang University, Iksan 54538, Korea; (M.-S.K.); (Y.J.K.); (J.H.); (S.R.)
- Correspondence:
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15
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Kang MS, Kim SH, Yang MJ, Kim HY, Kim IH, Kang JW, Choi HS, Jin SW, Park EJ. Polyhexamethylene guanidine phosphate-induced necrosis may be linked to pulmonary fibrosis. Toxicol Lett 2022; 362:1-16. [DOI: 10.1016/j.toxlet.2022.03.009] [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] [Received: 11/19/2021] [Revised: 03/05/2022] [Accepted: 03/24/2022] [Indexed: 10/18/2022]
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16
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Lee WY, Kang MS, Kim GS, Choi JW, Park NW, Sim Y, Kim YH, Seong MJ, Yoon YG, Saitoh E, Lee SK. Interface-Induced Seebeck Effect in PtSe 2/PtSe 2 van der Waals Homostructures. ACS Nano 2022; 16:3404-3416. [PMID: 35133142 DOI: 10.1021/acsnano.2c00359] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The Seebeck effect refers to the production of an electric voltage when different temperatures are applied on a conductor, and the corresponding voltage-production efficiency is represented by the Seebeck coefficient. We report a Seebeck effect: thermal generation of driving voltage from the heat flowing in a thin PtSe2/PtSe2 van der Waals homostructure at the interface. We refer to the effect as the interface-induced Seebeck effect. By exploiting this effect by directly attaching multilayered PtSe2 over high-resistance PtSe2 thin films as a hybridized single structure, we obtained the highly challenging in-plane Seebeck coefficient of the PtSe2 films that exhibit extremely high resistances. This direct attachment further enhanced the in-plane thermal Seebeck coefficients of the PtSe2/PtSe2 van der Waals homostructure on sapphire substrates. Consequently, we successfully enhanced the in-plane Seebeck coefficients for the PtSe2 (10 nm)/PtSe2 (2 nm) homostructure approximately 42% compared to that of a pure PtSe2 (10 nm) layer at 300 K. These findings represent a significant achievement in understanding the interface-induced Seebeck effect and provide an effective strategy for promising large-area thermoelectric energy harvesting devices using two-dimensional transition metal dichalcogenide materials, which are ideal thermoelectric platforms with high figures of merit.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jae Won Choi
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yumin Sim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yun-Ho Kim
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Maeng-Je Seong
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Young-Gui Yoon
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Eiji Saitoh
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Sang-Kwon Lee
- Department of Physics and Center for Berry Curvature based New Phenomena, Chung-Ang University, Seoul 06974, Republic of Korea
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17
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Kang MS, Jang SC, Park T, Kim MS, Park JS, Chi WJ, Kim SY. Synthesis and Melanogenesis Effect of 7,8-Dimethoxy-4-Methylcoumarin via MAPK Signaling-Mediated Microphthalmia-Associated Transcription Factor Upregulation. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221076647] [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: 11/15/2022] Open
Abstract
Tyrosinase ultimately controls the melanogenesis rate of the skin, and tanning and haircare products generally induce the activation of tyrosinase. Moreover, various enzymes, including tyrosinase, tyrosinase-related protein 1 (TRP1), and tyrosinase-related protein 2 (TRP2), mediate melanogenesis in which microphthalmia-associated transcription factor (MITF) is a master regulator. One coumarin family member 7,8-dihydroxy-4-methylcoumarin (DHMC) shows extensive biological activities with beneficial health effects; however, it also induces cytotoxicity and its melanogenic effect has not been reported yet. Therefore, we first synthesized DHMC derivatives via methylation to obtain 7,8-dimethoxy-4-methylcoumairn (DMMC), and investigated the pro- or anti-melanogenic effects of DHMC and DMMC in B16-F10 melanoma cells as well as the underlying mechanism. DHMC showed cytotoxicity at all tested concentrations, whereas DMMC did not reduce cell viability, even at the high concentration. DMMC also drives the significant increase in intracellular melanin and tyrosinase activity. Moreover, DMMC induced MITF expression by significantly increasing tyrosinase activity, which activates the gene expression of TRP1 and TRP2. Western blotting confirmed that DMMC induced the activation of mitogen-activated protein kinase (MAPK) signaling by the phosphorylation of C-Jun N-terminal kinase (JNK), resulting in the increased melanin production and the decreased phosphorylation of protein kinase B. Collectively, this study showed the pro-melanogenic effect of DMMC and its potential as a safe tanning and dyeing agent.
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Affiliation(s)
| | | | - Taejin Park
- Sunmoon University, Chungnam, Republic of Korea
| | - Min-Seon Kim
- Korea Institute of Science and Technology (KIST), Gangwon-do, Republic of Korea
| | - Jin-Soo Park
- Korea Institute of Science and Technology (KIST), Gangwon-do, Republic of Korea
| | - Won-Jae Chi
- National Institute of Biological Resources, Incheon, Republic of South Korea
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18
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Park EJ, Jin SW, Kang MS, Yang MJ, Kim SH, Han HY, Kang JW. Pulmonary inflammation and cellular responses following exposure to benzalkonium chloride: Potential impact of disrupted pulmonary surfactant homeostasis. Toxicol Appl Pharmacol 2022; 440:115930. [PMID: 35202710 DOI: 10.1016/j.taap.2022.115930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 10/19/2022]
Abstract
Benzalkonium chloride (BKC) is a prototypical quaternary ammonium disinfectant. Previously, we suggested a no lethal dose level (0.005%) and an LD50 range (0.5-0.05%) of BKC following a single pharyngeal aspiration. Herein, we exposed BKC repeatedly by pharyngeal aspiration for 14 days (0.005 and 0.01%, female mice, total five times with interval of two days, 5 mice/group) and 28 days (0, 0.001, 0.005, and 0.01%, male and female mice, weekly, 16 mice/sex/group). Death following 14 days-repeated exposure did not occur. Meanwhile, chronic pathological lesions were observed in the lung tissues of mice exposed to BKC for 28 days. The total number of bronchial alveolar lavage cells increased, and pulmonary homeostasis of immunologic messenger molecules was disturbed. Following, we investigated BKC-induced cellular responses using human bronchial epithelial cells. The cytotoxicity increased rapidly with concentration. Lysosomal volume, NO production, and lipid peroxidation increased in BKC-treated cells, whereas intracellular ROS level decreased accompanying structural and functional damage of mitochondria. We also found that BKC affected the expression level of immune response, DNA damage, and amino acid biosynthesis-related molecules. More interestingly, lamellar body- and autophagosome-like structures were notably observed in cells exposed to BKC, and necrotic and apoptotic cell death were identified accompanying cell accumulation in the G2/M phase. Therefore, we suggest that repeated respiratory exposure of BKC causes pulmonary inflammation and lung tissue damage and that dead and damaged cells may contribute to the inflammatory response. In addition, the formation process of lamellar body-like structures may function as a key toxicity mechanism.
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Affiliation(s)
- Eun-Jung Park
- Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea; Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Republic of Korea.
| | - Seung-Woo Jin
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Republic of Korea
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Republic of Korea; Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Hyoung-Yun Han
- Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
| | - Jeong Won Kang
- Department of Chemical and Biological Engineering, Korea University, 0284, Republic of Korea; Graduate School of Energy and Environment, Korea University, 0284, Republic of Korea
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19
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Son IS, Han SY, Chung HJ, Hong JE, Kang MS. Unstable Non-isthmic Spondylolisthesis Following Unilateral Biportal Endoscopy Assisted Unilateral Laminotomy for Bilateral Decompression: A Case Report. Malays Orthop J 2021; 15:147-151. [PMID: 34966512 PMCID: PMC8667255 DOI: 10.5704/moj.2111.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 08/27/2021] [Indexed: 11/05/2022] Open
Abstract
Lumbar decompressive laminectomy is a standard treatment for degenerative lumbar spinal stenosis, but in some cases, can lead to iatrogenic spondylolysis and delayed segmental instability. Iatrogenic spondylolysis occurs in most cases in pars interarticularis, but rare cases have also been reported, pediculolysis in pedicle and laminolysis in lamina. Minimally invasive spine surgery (MIS) is known to have a low risk of developing these iatrogenic spondylolyses, and unilateral biportal endoscopy is the MIS that has been drawing attention. We present a case of a 72-year-old female who was diagnosed with L4-5 unstable non-isthmic spondylolisthesis and severe right central disc extrusion 10 weeks after UBE assisted unilateral laminotomy for bilateral decompression (ULBD) at the consecutive segments of L3-4 and L4-5. Pre-operative imaging studies revealed severe central stenosis without spondylolisthesis at L3-L4 and L4-L5 along with L4-L5 facet tropism. She was managed by anterior lumbar interbody fusion and cement augmented pedicle screw fixation, which resulted in the complete resolution of her clinical and neurologic symptoms.
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Affiliation(s)
- I S Son
- Department of Orthopedic Surgery, Jeju National University College of Medicine and Graduate School of Medicine, Jeju, South Korea
| | - S Y Han
- Department of Neurosurgery, Yonsei Knee Spine Hospital, Seoul, South Korea
| | - H J Chung
- Department of Orthopedic Surgery, Bumin Hospital Seoul, Seoul, South Korea
| | - J E Hong
- Department of Orthopedic Surgery, Jeju National University College of Medicine and Graduate School of Medicine, Jeju, South Korea
| | - M S Kang
- Department of Orthopedic Surgery, Bumin Hospital Seoul, Seoul, South Korea
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20
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Lee WY, Park NW, Kang MS, Kim GS, Yoon YG, Lee S, Choi KY, Kim KS, Kim JH, Seong MJ, Kikkawa T, Saitoh E, Lee SK. Extrinsic Surface Magnetic Anisotropy Contribution in Pt/Y 3Fe 5O 12 Interface in Longitudinal Spin Seebeck Effect by Graphene Interlayer. ACS Appl Mater Interfaces 2021; 13:45097-45104. [PMID: 34496563 DOI: 10.1021/acsami.1c13180] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A recent study found that magnetization curves for Y3Fe5O12 (YIG) slab and thick films (>20 μm thick) differed from bulk system curves by their longitudinal spin Seebeck effect in a Pt/YIG bilayer system. The deviation was due to intrinsic YIG surface magnetic anisotropy, which is difficult to adopt extrinsic surface magnetic anisotropy even when in contact with other materials on the YIG surface. This study experimentally demonstrates evidence for extrinsic YIG surface magnetic anisotropy when in contact with a diamagnetic graphene interlayer by observing the spin Seebeck effect, directly proving intrinsic YIG surface magnetic anisotropy interruption. We show the Pt/YIG bilayer system graphene interlayer role using large area single and multilayered graphenes using the longitudinal spin Seebeck effect at room temperature, and address the presence of surface magnetic anisotropy due to magnetic proximity between graphene and YIG layer. These findings suggest a promising route to understand new physics of spin Seebeck effect in spin transport.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Young-Gui Yoon
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Suheon Lee
- Deopartment of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kwang-Yong Choi
- Deopartment of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Keun Soo Kim
- Department of Physics and Astronomy, Sejong University, Seoul 05006, Republic of Korea
| | - Jin-Hyuk Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Maeng-Je Seong
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Takashi Kikkawa
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Eiji Saitoh
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Sang-Kwon Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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21
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Park EJ, Kang MS, Jin SW, Lee TG, Lee GH, Kim DW, Lee EW, Park J, Choi I, Pak YK. Multiple pathways of alveolar macrophage death contribute to pulmonary inflammation induced by silica nanoparticles. Nanotoxicology 2021; 15:1087-1101. [PMID: 34469701 DOI: 10.1080/17435390.2021.1969461] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In our previous study, 20 nm-sized amorphous silica nanoparticles (20-SiNPs), but not 50 nm-sized amorphous silica nanoparticles (50-SiNPs), induced pulmonary inflammatory response in rats exposed repeatedly for 14 days (12.5, 25, and 50 μg/time, total six times). In this study, we tried to clarify the causes of different responses induced by both SiNPs using mice (12.5, 25, and 50 μg/lung) and mouse alveolar macrophage cells. When exposed to alveolar macrophage cells for 24 h, both SiNPs decreased cell viability and enhanced ROS generation compared to controls. The 20- and 50-SiNPs also formed giant and autophagosome-like vacuoles in the cytoplasm, respectively. Structural damage of organelles was more pronounced in 20-SiNPs-treated cells than in 50-SiNPs-treated cells, and an increased mitochondrial membrane potential and mitochondrial calcium accumulation were observed only in the 20-SiNPs-treated cells. Additionally, a single intratracheal instillation of both sizes of SiNPs to mice clearly elevated the relative proportion of neutrophils and inhibited differentiation of macrophages and expression of an adhesion molecule. Meanwhile, interestingly, the total number of pulmonary cells and the levels of pro-inflammatory mediators more notably increased in the lungs of mice exposed to 20-SiNPs compared to 50-SiNPs. Given that accumulation of giant vacuoles and dilation of the ER and mitochondria are key indicators of paraptosis, we suggest that 20-SiNPs-induced pulmonary inflammation may be associated with paraptosis of alveolar macrophages.
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Affiliation(s)
- Eun-Jung Park
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Human Health and Environmental Toxins Research Center, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea.,General Toxicology & Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology, Republic of Korea
| | - Seung-Woo Jin
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea
| | - Tae Geol Lee
- Korea Research Institute of Standards and Science, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Eun-Woo Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Republic of Korea.,Department of Functional Genomics, University of Science and Technology, Republic of Korea
| | - Junhee Park
- Department of Life Science, University of Seoul, Republic of Korea
| | - Inhee Choi
- Department of Life Science, University of Seoul, Republic of Korea
| | - Youngmi Kim Pak
- Human Health and Environmental Toxins Research Center, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Department of Physiology, Kyung Hee University, College of Medicine, Seoul, Republic of Korea
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22
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Park EJ, Jin SW, Lim HJ, Kim HY, Kang MS, Yang S. Whole Cigarette Smoke Condensates Induce Accumulation of Amyloid Beta Precursor Protein with Oxidative Stress in Murine Astrocytes. Toxics 2021; 9:toxics9070150. [PMID: 34203397 PMCID: PMC8309752 DOI: 10.3390/toxics9070150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
Although cigarette smoking has been postulated to be a potential risk factor for Alzheimer's disease (AD), the toxic mechanism is still unclear. Additionally, astrocytes have been identified as a potential target, given they play multiple roles in maintaining normal brain function. In this study, we explored the toxic mechanism of whole cigarette smoke condensates (WCSC) using murine astrocytes. Cell proliferation, the percentage of cells in the G2/M phase, and LDH concentrations in the cell supernatants were all reduced in WCSC-treated cells. In addition, oxidative stress was induced, together with shortening of processes, structural damage of organelles, disturbances in mitochondrial function, blockage of autophagic signals, accumulation of amyloid β precursor protein, and loss of chemotactic functions. Based on these results, we hypothesize that dysfunction of astrocytes may contribute to the occurrence of cigarette-smoking-induced AD.
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Affiliation(s)
- Eun-Jung Park
- East–West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul 02447, Korea
- Human Health and Environmental Toxins Research Center, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul 02447, Korea
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.-W.J.); (H.-J.L.); (M.-S.K.)
- Correspondence: ; Tel.: +82-2-958-1527
| | - Seung-Woo Jin
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.-W.J.); (H.-J.L.); (M.-S.K.)
| | - Hyun-Ji Lim
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.-W.J.); (H.-J.L.); (M.-S.K.)
| | - Hyeon-Young Kim
- Inhalation Toxicology Center for Airborne Risk Factors, Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup 56212, Korea;
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.-W.J.); (H.-J.L.); (M.-S.K.)
- General Toxicology & Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup 56212, Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Korea;
- Degenerative InterDiseases Research Center, Ajou University School of Medicine, Suwon 16499, Korea
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23
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Lee HS, Kim DH, Kim SH, Kang MS, Suh HN. A comparative study on intraocular pressure under various anesthetics in cynomolgus monkeys (Macaca fascicularis). Lab Anim Res 2021; 37:15. [PMID: 34158113 PMCID: PMC8220749 DOI: 10.1186/s42826-021-00092-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/07/2021] [Indexed: 11/10/2022] Open
Abstract
Background Nonhuman primates (NHPs) are superior model for ocular research due to its morphological and physiological similarities with humans. Thus, the effect of four different anesthetic combinations [ketamine (10 mg/kg), ketamine + xylazine (7 + 0.6 mg/kg), zoletil (4 mg/kg), and zoletil + xylazine (4 + 0.2 mg/kg)] on intraocular pressure (IOP) was determined in cynomolgus monkeys. Results The administration of ketamine + xylazine or zoletil + xylazine resulted in lower IOP compared to ketamine or zoletil alone. Moreover, the IOP in male monkeys was higher than in females. The difference between the right and left eye was not found. Conclusions Anesthetics affected the IOP, and gender differences should be considered when measuring the IOP of nonhuman primates (NHPs).
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Affiliation(s)
- Hong-Soo Lee
- Biotoxtech, 53 Yeongudanji-ro, Ochang-eup, Chungcheongbuk-do, South Korea
| | - Da-Hee Kim
- Korea Institute of Toxicology, 30 Haekhak 1-gil, Jeongeup, Jeollabuk-do, South Korea
| | - Sung-Hwan Kim
- Korea Institute of Toxicology, 30 Haekhak 1-gil, Jeongeup, Jeollabuk-do, South Korea
| | - Min-Sung Kang
- Korea Institute of Toxicology, 30 Haekhak 1-gil, Jeongeup, Jeollabuk-do, South Korea
| | - Han Na Suh
- Korea Institute of Toxicology, 30 Haekhak 1-gil, Jeongeup, Jeollabuk-do, South Korea.
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24
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Park EJ, Kim SN, Yoon C, Cho JW, Lee GH, Kim DW, Park J, Choi I, Lee SH, Song J, Lim HJ, Kang MS, Lee HS. Repeated intratracheal instillation of zinc oxide nanoparticles induced pulmonary damage and a systemic inflammatory response in cynomolgus monkeys. Nanotoxicology 2021; 15:621-635. [PMID: 33870832 DOI: 10.1080/17435390.2021.1905899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Recently, some researchers have demonstrated that inhaled zinc oxide nanoparticles (ZnONPs) induce an acute systemic inflammatory response in workers. Considering nonhuman primates are preferably considered an animal model for translational research due to their proven similarity with humans in terms of genetics and physiology, we intratracheally instilled ZnONPs to cynomolgus monkey for 14 days and identified the toxic mechanism and bioaccumulation. ZnONPs were rapidly ionized or aggregated in a simulated pulmonary fluid, and they attracted neutrophils to the lungs and increased the pulmonary level of inflammatory mediators. Additionally, thickened alveolar walls, fibrin clots, and hemorrhages were observed in the lungs of the monkeys instilled with the higher dose accompanied by cell debris in the alveolar ducts and alveoli. Dark-field microscopy images revealed translocation of ZnONPs into other tissues accompanied by an increase in the relative weight of livers to body weight. In addition, when instilled at the higher dose, the albumin/globulin ratio notably decreased compared to the control, whereas the C-reactive protein (CRP) level was significantly elevated. ZnONPs also clearly induced apoptotic cell death in a 24 h exposure to alveolar macrophages. Taken together, part of inhaled ZnONPs may be ionized in the lung, resulting in acute toxic effects, including cell death and tissue damage, and the rest may move to other tissues in the form of particles, causing a systemic inflammatory response. Based on the proven evidence among workers, we also suggest that the CRP level can be recommended as a biomarker for ZnONPs-induced adverse health effects.
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Affiliation(s)
- Eun-Jung Park
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Human Health and Environmental Toxins Research Center, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.,Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Seoul, South Korea
| | - Soo Nam Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea.,Bio-Health Convergence Institute GLP Lab, Korea Testing Certification Institute, Cheongju, Republic of Korea
| | - Cheolho Yoon
- Ochang Center, Korea Basic Science Institute, Seoul, South Korea
| | - Jae-Woo Cho
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea.,Toxicologic Pathology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul, South Korea
| | - Dong-Wan Kim
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul, South Korea
| | - Junhee Park
- Department of Life Science, University of Seoul, Seoul, South Korea
| | - Inhee Choi
- Department of Life Science, University of Seoul, Seoul, South Korea
| | - Seung Hyeun Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Jeongah Song
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea
| | - Hyun-Ji Lim
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Seoul, South Korea
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Seoul, South Korea.,Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea
| | - Hong-Soo Lee
- Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup, Republic of Korea
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25
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Huh DA, Kang MS, Lee J, Choi JY, Moon KW, Lee YJ. Occupational and environmental asbestos exposure and the risk of lung cancer in Korea: A case-control study in South Chungcheong Province of Korea. PLoS One 2021; 16:e0249790. [PMID: 33831090 PMCID: PMC8031370 DOI: 10.1371/journal.pone.0249790] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/24/2021] [Indexed: 11/21/2022] Open
Abstract
Despite the use of large amounts of asbestos in the 1990s, few studies have been conducted in Korea on occupational and environmental asbestos exposure and lung cancer risk. The main aim of this study was to estimate the risk of lung cancer development caused by occupational and environmental asbestos exposures in residents of South Chungcheong Province, where about half of the asbestos mines in Korea operated. We conducted a case-control study, for which the information on asbestos exposure history and demographic characteristics was provided by the Environmental Health Center for asbestos of Soonchunhyang University Cheonan Hospital. After adjusting for all covariates, the odds ratios for lung cancer tended to increase with higher exposure probability for both occupational as well as environmental asbestos. The relative risk of occupational asbestos exposure was higher than that of environmental exposure; the interaction of co-exposure was not statistically significant. The estimated means of the latency period were significantly shorter in participants who were engaged in the production of asbestos-containing products and in those who lived near asbestos industries as compared to other groups.
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Affiliation(s)
- Da-An Huh
- Department of Health Science, Graduate School at Korea University, Seoul, Republic of Korea
| | - Min-Sung Kang
- Department of Health Science, Graduate School at Korea University, Seoul, Republic of Korea
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Cheonan-si, Chungcheongnam-do, Republic of Korea
| | - Jiyun Lee
- Department of Health and Safety Convergence Science, Graduate School at Korea University, Seoul, Republic of Korea
| | - Ji Yoon Choi
- Department of Health and Safety Convergence Science, Graduate School at Korea University, Seoul, Republic of Korea
| | - Kyong Whan Moon
- Department of Health and Safety Convergence Science, Graduate School at Korea University, Seoul, Republic of Korea
- BK21 FOUR R&E Center for Learning Health System & Department of Health and Environmental Science, Graduate School at Korea University, Seoul, Republic of Korea
| | - Yong-Jin Lee
- Asbestos Environmental Health Center, Soonchunhyang University Cheonan Hospital, Cheonan-si, Chungcheongnam-do, Republic of Korea
- Department of Occupational & Environmental Medicine, Soonchunhyang University, Cheonan-si, Chungcheongnam-do, Republic of Korea
- * E-mail:
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26
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Lee WY, Kang MS, Kim GS, Park NW, Choi KY, Le CT, Rashid MU, Saitoh E, Kim YS, Lee SK. Role of Ferromagnetic Monolayer WSe 2 Flakes in the Pt/Y 3Fe 5O 12 Bilayer Structure in the Longitudinal Spin Seebeck Effect. ACS Appl Mater Interfaces 2021; 13:15783-15790. [PMID: 33769783 DOI: 10.1021/acsami.0c22345] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The spin Seebeck effect (SSE) has attracted renewed interest as a promising phenomenon for energy harvesting systems. A noteworthy effort has been devoted to improving the SSE voltage by inserting ultrathin magnetic layers including Fe70Cu30 interlayers in Pt/Y3Fe5O12 (Pt/YIG) systems with increased spin-mixing conductance at the interfaces. Nevertheless, the responsible underlying physics associated with the role of the interlayer in Pt/YIG systems in the SSE is still unknown. In this paper, we demonstrate that with a monolayer tungsten diselenide (ML WSe2) interlayer in the Pt/YIG bilayer system, the longitudinal SSE (LSSE) voltage is significantly increased by the increased spin accumulation in the Pt layer; the spin fluctuation in ML WSe2 amplifies the spin current transmission because the in-plane-aligned WSe2 spins are coupled to thermally pumped spins under nonequilibrium magnetization conditions in the LSSE configuration at room temperature. The thermopower (VLSSE/ΔT) improves by 323% with respect to the value of the reference Pt/YIG bilayer sample in the LSSE at room temperature. In addition, the induced ferromagnetic properties of the ML WSe2 flakes on YIG increase the LSSE voltage (VLSSE) of the sample; the ferromagnetic properties are a result of the improved magnetic moment density in the ML WSe2 flakes and their two-dimensional (2D) ML nature in the LSSE under nonequilibrium magnetization conditions. The results can extend the application range of the materials in energy harvesting and provide important information on the physics of the LSSE with a transition metal dichalcogenide intermediate layer in spin transport.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Kwang-Yong Choi
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Chinh Tam Le
- Department of Physics and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Mamoon Ur Rashid
- Department of Physics and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Eiji Saitoh
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yong Soo Kim
- Department of Physics and Energy Harvest-Storage Research Center, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Sang-Kwon Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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27
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Park EJ, Kang MS, Lim HJ, Kang TK, Jin SW, Lee SH, Baek SH, Kang JW. Detection of intracellular lamellar bodies as a screening marker for fibrotic lesions. Toxicol Appl Pharmacol 2021; 418:115501. [PMID: 33771551 DOI: 10.1016/j.taap.2021.115501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 12/25/2022]
Abstract
With the rapid increase in application of disinfectants worldwide as a method to block the spread of coronavirus, many new products are being introduced into the market without thorough verification of their impacts on human health and the environment. In the present study, we aimed to propose a screening marker for materials that can induce fibrotic lung disease using disinfectants, which had been demonstrated as causative materials of chronic inflammation and interstitial fibrosis. We first calculated the corresponding LC50 level based on results from cell viability test and exposed the LC50 level of disinfectants to human bronchial epithelial cells for 24 h. Formation of lamellar body-like structures, cleavage of the nuclear matrix, structural damage of mitochondria were found in the cytosol of the treated cells. We also dosed disinfectants by pharyngeal aspiration to mice to determine the LD0 level. The mice were sacrificed on Day 14 after a single dosing, and lamellar body-like structures were observed in the lung tissue of mice. Herein, we hypothesize that DNA damage and metabolic disturbance may play central roles in disinfectant-induced adverse health effects. Additionally, we propose that formation of lamellar bodies can be a screening marker for interstitial fibrosis.
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Affiliation(s)
- Eun-Jung Park
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee Medical Science Research Institute, Kyung Hee University, 02447, Republic of Korea; Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea.
| | - Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea; General Toxicology & Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Hyun-Ji Lim
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea
| | - Tae Kyu Kang
- College of Veterinary Medicine, Chungbuk National University, 28644, Republic of Korea
| | - Seung-Woo Jin
- Department of Biomedical Science and Technology, Graduate school, Kyung Hee University, Republic of Korea
| | - Seung Hyeun Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Kyung Hee University School of Medicine, 02447, Republic of Korea
| | - Sun Hwa Baek
- Department of Chemical and Biological Engineering, Korea University, 0284, Republic of Korea
| | - Jeong Won Kang
- Department of Chemical and Biological Engineering, Korea University, 0284, Republic of Korea; Graduate School of Energy and Environment, Korea University, 0284, Republic of Korea.
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28
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Jana B, Kim D, Choi H, Kim M, Kim K, Kim S, Jin S, Park MH, Lee KH, Yoon C, Lee BS, Kang MS, Lim HJ, Park EJ, Jeong Y, Ryu JH, Kim C. Drug resistance-free cytotoxic nanodrugs in composites for cancer therapy. J Mater Chem B 2021; 9:3143-3152. [PMID: 33586760 DOI: 10.1039/d0tb02850a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Drug resistance is a major cause of treatment failure for small-molecule cancer chemotherapies, despite the advances in combination therapies, drug delivery systems, epigenetic drugs, and proteolysis-targeting chimeras. Herein, we report the use of a drug resistance-free cytotoxic nanodrug as an alternative to small-molecule drugs. The present nanodrugs comprise 2 nm core gold nanoparticles (AuNPs) covered completely with multivalent hydrocarbon chains to a final diameter of ∼10 nm as single drug molecules. This hydrophobic drug-platform was delivered in composite form (∼35 nm) with block-copolymer like other small-molecular drugs. Upon uptake by cells, the nanodrugs enhanced the intracellular levels of reactive oxygen species and induced apoptosis, presumably reflecting multivalent interactions between aliphatic chains and intracellular biomolecules. No resistance to our novel nanodrug was observed following multiple treatment passages and the potential for use in cancer therapy was verified in a breast cancer patient-derived xenograft mouse model. These findings provide insight into the use of nano-scaled compounds as agents that evade drug resistance to cancer therapy.
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Affiliation(s)
- Batakrishna Jana
- Department of Chemistry, School of Natural Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea.
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29
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Lee WY, Park NW, Kim GS, Kang MS, Choi JW, Choi KY, Jang HW, Saitoh E, Lee SK. Enhanced Spin Seebeck Thermopower in Pt/Holey MoS 2/Y 3Fe 5O 12 Hybrid Structure. Nano Lett 2021; 21:189-196. [PMID: 33274946 DOI: 10.1021/acs.nanolett.0c03499] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We first observed the spin-to-charge conversion due to both the inverse Rashba-Edelstein effect (IREE) and inverse spin-Hall effect in a holey multilayer molybdenum disulfide (MoS2) intermediate layer in a Pt/YIG structure via LSSE measurements under nonequilibrium magnetization. We found an enhancement of approximately 238%, 307%, and 290% in the longitudinal spin Seebeck effect (LSSE) voltage, spin-to-charge current, and thermoelectric (TE) power factor, respectively, compared with the monolayer MoS2 interlayer in a Pt/YIG structure. Such an enhancement in the LSSE performance of Pt/holey MoS2/YIG can be explained by the improvement of spin accumulation in the Pt layer by induced spin fluctuation as well as increased additional spin-to-charge conversion due to in-plane IREE. Our findings represent a significant achievement in the understanding of spin transport in atomically thin MoS2 interlayers and pave the way toward large-area TE energy-harvesting devices in two-dimensional transition metal dichalcogenide materials.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jae Won Choi
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Kwang-Yong Choi
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Eiji Saitoh
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Sang-Kwon Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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Jeong J, Kang MS, Jeong OM, Lee HJ, Lee JY, Kwon YK, Park JW, Kim JH. Investigation of Genetic Diversity of Pasteurella multocida Isolated from Diseased Poultry in Korea. Braz J Poult Sci 2021. [DOI: 10.1590/1806-9061-2020-1390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- J Jeong
- Animal and Plant Quarantine Agency, Republic of Korea
| | - MS Kang
- Animal and Plant Quarantine Agency, Republic of Korea
| | - OM Jeong
- Animal and Plant Quarantine Agency, Republic of Korea
| | - HJ Lee
- Animal and Plant Quarantine Agency, Republic of Korea
| | - JY Lee
- Animal and Plant Quarantine Agency, Republic of Korea
| | - YK Kwon
- Animal and Plant Quarantine Agency, Republic of Korea
| | - JW Park
- Animal and Plant Quarantine Agency, Republic of Korea
| | - JH Kim
- Animal and Plant Quarantine Agency, Republic of Korea
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Park EJ, Yoon C, Han JS, Lee GH, Kim DW, Park EJ, Lim HJ, Kang MS, Han HY, Seol HJ, Kim KP. Effect of PM10 on pulmonary immune response and fetus development. Toxicol Lett 2020; 339:1-11. [PMID: 33301788 DOI: 10.1016/j.toxlet.2020.11.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/19/2020] [Accepted: 11/29/2020] [Indexed: 01/12/2023]
Abstract
Despite numerous reports that ambient particulate matter is a key determinant for human health, toxicity data produced based on physicochemical properties of particulate matters is very lack, suggesting lack of scientific evidence for regulation. In this study, we sampled inhalable particulate matters (PM10) in northern Seoul, Korea. PM10 showed atypical- and fiber-type particles with the average size and the surface charge of 1,598.1 ± 128.7 nm and -27.5 ± 2.8, respectively, and various toxic elements were detected in the water extract. On day 90 after the first pulmonary exposure, total cell number dose-dependently increased in the lungs of both sexes of mice. PM10 induced Th1-dominant immune response with pathological changes in both sexes of mice. Meanwhile, composition of total cells and expression of proteins which functions in cell-to-cell communication showed different trends between sexes. Following, male and female mice were mated to identify effects of PM10 to the next generation. PM10 remained in the lung of dams until day 21 after birth, and the levels of IgA and IgE increased in the blood of dams exposed to the maximum dose compared to control. In addition, the interval between births of fetuses, the number of offspring, the neonatal survival rate (day 4 after birth) and the sex ratio seemed to be affected at the maximum dose, and particularly, all offspring from one dam were stillborn. In addition, expression of HIF-1α protein increased in the lung tissue of dams exposed to PM10, and level of hypoxia-related proteins was notably enhanced in PM10-exposed bronchial epithelial cells compared to control. Taken together, we suggest that inhaled PM10 may induce Th1-shifting immune response in the lung, and that it may affect reproduction (fetus development) by causing lung hypoxia. Additionally, we propose that further study is needed to identify particle-size-dependent effects on development of the next generation.
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Affiliation(s)
- Eun-Jung Park
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea.
| | - Cheolho Yoon
- Seoul Center, Korea Basic Science Institute, Seoul, Republic of Korea
| | - Ji-Seok Han
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul, Republic of Korea
| | - Eun-Jun Park
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Hyun-Ji Lim
- East-West Medical Science Research Institute, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea
| | - Min-Sung Kang
- General Toxicology & Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeollabuk-do, Republic of Korea
| | - Hyoung-Yun Han
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Hyun-Joo Seol
- Department of Obstetrics & Gynecology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, Seoul, Republic of Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, Institute of Natural Science, Global Center for Pharmaceutical Ingredient Materials, Kyung Hee University, Yongin, Republic of Korea; Department of Biomedical Science and technology, Kyung Hee Medical Science Research Institute, Kyung Hee University, Seoul, Republic of Korea
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32
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Heo J, Hong C, Kang MS, Yang HJ. Encoding scheme using quantum dots for single logical qubit information onto four-photon decoherence-free states. Sci Rep 2020; 10:15334. [PMID: 32948781 PMCID: PMC7501298 DOI: 10.1038/s41598-020-71072-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/19/2020] [Accepted: 07/02/2020] [Indexed: 11/22/2022] Open
Abstract
We designed an encoding scheme, using quantum dots (QDs), for single logical qubit information by encoding quantum information onto four-photon decoherence-free states to acquire immunity against collective decoherence. The designed scheme comprised of QDs, confined in single-sided cavities (QD-cavity systems), used for arbitrary quantum information, encoded onto four-photon decoherence-free states (logical qubits). For our scheme, which can generate the four-photon decoherence-free states, and can encode quantum information onto logical qubits, high efficiency and reliable performance of the interaction between the photons and QD-cavity systems is essential. Thus, through our analysis of the performance of QD-cavity systems under vacuum noise and sideband leakage, we demonstrate that the encoding scheme for single logical qubit information could be feasibly implemented.
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Affiliation(s)
- Jino Heo
- Institute of Natural Science, Korea University, Sejong, 30091, Republic of Korea
| | - Changho Hong
- The Affiliated Institute of Electronics and Telecommunications Research Institute, P.O. Box 1, Yuseong, Daejeon, 34188, Republic of Korea
| | - Min-Sung Kang
- Korean Intellectual Property Office (KIPO), Government Complex Daejeon Building 4, 189, Cheongsa-ro, Seo-gu, Daejeon, 35208, Republic of Korea
| | - Hyung-Jin Yang
- Department of Physics, Korea University, Sejong, 30091, Republic of Korea.
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33
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Park EJ, Seong E, Kang MS, Lee GH, Kim DW, Han JS, Lim HJ, Lee SH, Han HY. Formation of lamellar body-like structure may be an initiator of didecyldimethylammonium chloride-induced toxic response. Toxicol Appl Pharmacol 2020; 404:115182. [PMID: 32763356 PMCID: PMC7403870 DOI: 10.1016/j.taap.2020.115182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/22/2020] [Accepted: 07/30/2020] [Indexed: 12/22/2022]
Abstract
Due to the pandemic of coronavirus disease 2019, the use of disinfectants is rapidly increasing worldwide. Didecyldimethylammonium chloride (DDAC) is an EPA-registered disinfectant, it was also a component in humidifier disinfectants that had caused idiopathic pulmonary diseases in Korea. In this study, we identified the possible pulmonary toxic response and mechanism using human bronchial epithelial (BEAS-2B) cells and mice. First, cell viability decreased sharply at a 4 μg/mL of concentration. The volume of intracellular organelles and the ROS level reduced, leading to the formation of apoptotic bodies and an increase of the LDH release. Secretion of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) and matrix metalloproteinase-1 also significantly increased. More importantly, lamellar body-like structures were formed in both the cells and mice exposed to DDAC, and the expression of both the indicator proteins for lamellar body (ABCA3 and Rab11a) and surfactant proteins (A, B, and D) was clearly enhanced. In addition, chronic fibrotic pulmonary lesions were notably observed in mice instilled twice (weekly) with DDAC (500 μg), ultimately resulting in death. Taken together, we suggest that disruption of pulmonary surfactant homeostasis may contribute to DDAC-induced cell death and subsequent pathophysiology and that the formation of lamellar body-like structures may play a role as the trigger. In addition, we propose that the cause of sudden death of mice exposed to DDAC should be clearly elucidated for the safe application of DDAC.
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Affiliation(s)
- Eun-Jung Park
- East-West Medical Science Research Institute, Kyung Hee University, Seoul 02447, Republic of Korea.
| | - Eunsol Seong
- East-West Medical Science Research Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Min-Sung Kang
- In vivo Hazard Evaluation & Research Division, General Toxicology & Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology, Jeongeup-si, Jeollabuk-do, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental, Architectural Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental, Architectural Engineering, Korea University, Seoul 136-713, Republic of Korea
| | - Ji-Seok Han
- Department of Advanced Toxicology Research, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Hyun-Ji Lim
- East-West Medical Science Research Institute, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seung Hyeun Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, School of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyoung-Yun Han
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
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34
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Lee DK, Kang MS, Cho H. MRI size assessment of cerebral microvasculature using diffusion-time-dependent stimulated-echo acquisition: A feasibility study in rodent. Neuroimage 2020; 215:116784. [PMID: 32276059 DOI: 10.1016/j.neuroimage.2020.116784] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 03/18/2020] [Accepted: 03/21/2020] [Indexed: 11/19/2022] Open
Abstract
In this study, a stimulated-echo (STE) method was employed to robustify the cerebral vessel size estimation near air-tissue, bone-tissue interfaces, and large vessels. The proposed solution is to replace the relaxation rate change from gradient-echo (GRE) with that from STE with long diffusion time after the injection of an intravascular contrast agent, superparamagnetic iron oxide nanoparticles. The corresponding diffusion length of STE is shorter than the length over which the unwanted macroscopic field inhomogeneities but is still longer than the correlation length of the fields induced by small vessels. Therefore, the unwanted field inhomogeneities are refocused, while preserving microscopic susceptibility contrast from cerebral vessels. The mean vessel diameter (dimensionless) derived from the diffusion-time-varying STE method was compared to the mean vessel diameter obtained by a conventional spin-echo (SE) and GRE combination based on Monte-Carlo proton diffusion simulations and in vivo rat experiments at 7 T. The in vivo mean vessel diameter from the MRI experiments was directly compared to available reference mouse brain vasculature obtained by a knife-edge scanning microscope (KESM), which is considered to be the gold standard. Monte-Carlo simulation revealed that SE and GRE-based MR relaxation rate changes (ΔR2 and ΔR2∗, respectively) can be enhanced using single STE-based MR relaxation rate change (ΔRSTE) by regulating diffusion time, especially for small vessels. The in vivo mean vessel diameter from the STE method demonstrated a closer agreement with that from the KESM compared to the combined SE and GRE method, especially in the olfactory bulb and cortex. This study demonstrates that STE relaxation rate changes can be used as consistent measures for assessing small cerebral microvasculature, where macroscopic field inhomogeneity is severe and signal contamination from adjacent large vessels is significant.
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Affiliation(s)
- D K Lee
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - M S Kang
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - H Cho
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea.
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35
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Lee WY, Park NW, Kang MS, Kim GS, Jang HW, Saitoh E, Lee SK. Surface Coverage Dependence of Spin-to-Charge Current across Pt/MoS 2/Y 3Fe 5O 12 Layers via Longitudinal Spin Seebeck Effect. J Phys Chem Lett 2020; 11:5338-5344. [PMID: 32558573 DOI: 10.1021/acs.jpclett.0c01502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The voltage induced by the inverse spin Hall effect (ISHE) is affected by several factors, including the spin Hall angle of the normal metal (NM), the quality and magnetic properties of the ferromagnetic material (FM), and the interface conditions between the NM and FM bilayers in longitudinal spin Seebeck effect (LSSE) measurement. Specifically, the interface conditions in NM/FM systems via LSSE devices play a crucial role in determining the efficiency of spin current injection into the NM layer. In this letter, we report a new approach to controlling the efficiency of spin current injection into a Pt layer across a Pt/Y3Fe5O12 (YIG) interface by surface coverage of the intermediate layer. A continuous, large-area multilayer molybdenum dichalcogenide (MoS2) thin film grown by chemical vapor deposition is inserted between the Pt and YIG layers in the LSSE configuration. We found that, when the large-area multilayer MoS2 film was present, the measured ISHE-induced voltage and theoretically calculated spin current in the Pt/MoS2/YIG trilayer increased by ∼510% and 470%, respectively, compared to those of a Pt/YIG bilayer. The induced voltage and spin current were very sensitive to the surface conductance, which was affected by the surface coverage of the multilayer MoS2 films in the LSSE measurement. Furthermore, the theoretically calculated spin current and spin mixing conductance in the trilayer geometry are in qualitatively good agreement with the experimental observations. These measurements enable us to explain the effect of the interface conditions on the spin Seebeck effect in spin transport.
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Affiliation(s)
- Won-Yong Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - No-Won Park
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Min-Sung Kang
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Gil-Sung Kim
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Eiji Saitoh
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - Sang-Kwon Lee
- Department of Physics, Chung-Ang University, Seoul 06974, Republic of Korea
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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36
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Kang MS, Heo J, Choi SG, Moon S, Han SW. Optical Fredkin gate assisted by quantum dot within optical cavity under vacuum noise and sideband leakage. Sci Rep 2020; 10:5123. [PMID: 32198445 PMCID: PMC7083924 DOI: 10.1038/s41598-020-61938-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 03/05/2020] [Indexed: 11/09/2022] Open
Abstract
We propose a deterministic Fredkin gate which can accomplish controlled-swap operation between three-qubit states. The proposed Fredkin gate consists of a photonic system (single photon) and quantum dots (QDs) confined in single-sided cavities (two electron spin states). In our scheme, the control qubit is the polarization state of the single photon, and two electron spin states in QDs play the role of target qubits (swapped states by control qubit). The interaction between a photon and an electron of QD within the cavity (QD-cavity system) significantly affects the performance of Fredkin gate. Thus, through the analysis of the QD-cavity system under vacuum noise and sideband leakage, we demonstrate that reliable interaction and performance of the QD-cavity system with photonic state (photon) can be acquired in our scheme. Consequently, the Fredkin gate proposed in this paper can be experimentally implemented with high feasibility and efficiency.
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Affiliation(s)
- Min-Sung Kang
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.,Korean Intellectual Property Office, Government Complex Daejeon Building 4, 189, Cheongsa-ro, Seo-gu, Daejeon, 35208, Republic of Korea
| | - Jino Heo
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea. .,Institute of Natural Science, Korea University, Sejong, 30091, Republic of Korea.
| | - Seong-Gon Choi
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Sung Moon
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Sang-Wook Han
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.,Division of Nano and Information Technology, Korea Institute of Science and Technology School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea
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37
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Hong C, Heo J, Kang MS, Jang J, Yang HJ, Kwon D. Photonic scheme of quantum phase estimation for quantum algorithms via cross-Kerr nonlinearities under decoherence effect. Opt Express 2019; 27:31023-31041. [PMID: 31684343 DOI: 10.1364/oe.27.031023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/24/2019] [Indexed: 06/10/2023]
Abstract
Quantum phase estimation (QPE) is the key procedure in various quantum algorithms. The main aim of the QPE scheme is to estimate the phase of an unknown eigenvalue, corresponding to an eigenstate of an arbitrary unitary operation. The QPE scheme can be applied as a subroutine to design many quantum algorithms. In this paper, we propose the basic structure of a QPE scheme that could be applied in quantum algorithms, with feasibility by utilizing cross-Kerr nonlinearities (controlled-unitary gates) and linearly optical devices. Subsequently, we analyze the efficiency and the performance of the controlled-unitary gate. This gate consists of a controlled-path gate and a merging-path gate via cross-Kerr nonlinearities under the decoherence effect. Also shown in this paper is a method by which to enhance robustness against the decoherence effect to provide a reliable QPE scheme based on controlled-unitary gates.
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38
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Lim HY, Kim KN, Jun JH, Lee SW, Kang MS. Reporting of randomized controlled trials in International Journal of Obstetric Anesthesia. Int J Obstet Anesth 2019; 41:114-115. [PMID: 31204097 DOI: 10.1016/j.ijoa.2019.04.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 04/07/2019] [Accepted: 04/10/2019] [Indexed: 11/26/2022]
Affiliation(s)
- H Y Lim
- Department of Anesthesiology and Pain Medicine, Hanyang University Hospital, College of Medicine, Seoul, Republic of Korea
| | - K N Kim
- Department of Anesthesiology and Pain Medicine, Hanyang University Hospital, College of Medicine, Seoul, Republic of Korea.
| | - J H Jun
- Department of Anesthesiology and Pain Medicine, Hanyang University Hospital, College of Medicine, Seoul, Republic of Korea
| | - S W Lee
- Department of Urology, Hanyang University Guri Hospital, College of Medicine, Seoul, Republic of Korea
| | - M S Kang
- Department of Anesthesiology and Pain Medicine, Hanyang University Hospital, College of Medicine, Seoul, Republic of Korea
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39
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Kang MS, Heo J, Choi SG, Moon S, Han SW. Implementation of SWAP test for two unknown states in photons via cross-Kerr nonlinearities under decoherence effect. Sci Rep 2019; 9:6167. [PMID: 30992536 PMCID: PMC6468003 DOI: 10.1038/s41598-019-42662-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/26/2019] [Indexed: 11/10/2022] Open
Abstract
We present an optical scheme for a SWAP test (controlled swap operation) that can determine whether the difference between two unknown states (photons) using cross-Kerr nonlinearities (XKNLs). The SWAP test, based on quantum fingerprinting, has been widely applied to various quantum information processing (QIP) schemes. Thus, for a reliable QIP scheme, it is important to implement a scheme for a SWAP test that is experimentally feasible. Here, we utilize linearly and nonlinearly optical (XKNLs) gates to design a scheme for a SWAP test. We also analyze the efficiency and the performance of nonlinearly optical gates in our scheme under the decoherence effect and exhibit a technique employing quantum bus beams and photon-number-resolving measurements to reduce the effect of photon loss and dephasing caused by the decoherence effect. Consequently, our scheme, which is designed using linearly optical devices and XKNLs (nonlinear optics), can feasibly operate the nearly deterministic SWAP test with high efficiency, in practice.
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Affiliation(s)
- Min-Sung Kang
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Jino Heo
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea.
| | - Seong-Gon Choi
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Sung Moon
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Sang-Wook Han
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
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40
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Kim YS, Pramanik T, Cho YW, Yang M, Han SW, Lee SY, Kang MS, Moon S. Informationally symmetrical Bell state preparation and measurement. Opt Express 2018; 26:29539-29549. [PMID: 30470116 DOI: 10.1364/oe.26.029539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 10/10/2018] [Indexed: 06/09/2023]
Abstract
Bell state measurement (BSM) plays crucial roles in photonic quantum information processing. The standard linear optical BSM is based on Hong-Ou-Mandel interference where two photons meet and interfere at a beamsplitter (BS). However, a generalized two-photon interference is not based on photon-photon interaction, but interference between two-photon probability amplitudes. Therefore, it might be possible to implement BSM without interfering photons at a BS. Here, we investigate a linear optical BSM scheme which does not require two photon overlapping at a BS. By unleashing the two photon coexistence condition, it can be symmetrically divided into two parties. The symmetrically dividable property suggests an informationally symmetrical BSM between remote parties without a third party. We also present that our BSM scheme can be used for Bell state preparation between remote parties without a third party. Since our BSM scheme can be easily extended to multiple photons, it can be useful for various quantum communication applications.
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41
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Heo J, Kang MS, Hong CH, Hong JP, Choi SG. Preparation of quantum information encoded on three-photon decoherence-free states via cross-Kerr nonlinearities. Sci Rep 2018; 8:13843. [PMID: 30218095 PMCID: PMC6138704 DOI: 10.1038/s41598-018-32137-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 08/29/2018] [Indexed: 12/03/2022] Open
Abstract
We present a scheme to encode quantum information (single logical qubit information) into three-photon decoherence-free states, which can conserve quantum information from collective decoherence, via nonlinearly optical gates (using cross-Kerr nonlinearities: XKNLs) and linearly optical devices. For the preparation of the decoherence-free state, the nonlinearly optical gates (multi-photon gates) consist of weak XKNLs, quantum bus (qubus) beams, and photon-number-resolving (PNR) measurement. Then, by using a linearly optical device, quantum information can be encoded on three-photon decoherence-free state prepared. Subsequently, by our analysis, we show that the nonlinearly optical gates using XKNLs, qubus beams, and PNR measurement are robust against the decoherence effect (photon loss and dephasing) in optical fibers. Consequently, our scheme can be experimentally implemented to efficiently generate three-photon decoherence-free state encoded quantum information, in practice.
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Affiliation(s)
- Jino Heo
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Min-Sung Kang
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Chang Ho Hong
- Base Technology Division, National Security Research Institute, P.O. Box 1, Yuseong, Daejeon, 34188, Republic of Korea
| | - Jong-Phil Hong
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Seong-Gon Choi
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea.
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42
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Heo J, Hong CH, Kang MS, Yang H, Yang HJ, Hong JP, Choi SG. Implementation of controlled quantum teleportation with an arbitrator for secure quantum channels via quantum dots inside optical cavities. Sci Rep 2017; 7:14905. [PMID: 29097727 PMCID: PMC5668345 DOI: 10.1038/s41598-017-14515-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/29/2017] [Indexed: 11/09/2022] Open
Abstract
We propose a controlled quantum teleportation scheme to teleport an unknown state based on the interactions between flying photons and quantum dots (QDs) confined within single- and double-sided cavities. In our scheme, users (Alice and Bob) can teleport the unknown state through a secure entanglement channel under the control and distribution of an arbitrator (Trent). For construction of the entanglement channel, Trent utilizes the interactions between two photons and the QD-cavity system, which consists of a charged QD (negatively charged exciton) inside a single-sided cavity. Subsequently, Alice can teleport the unknown state of the electron spin in a QD inside a double-sided cavity to Bob's electron spin in a QD inside a single-sided cavity assisted by the channel information from Trent. Furthermore, our scheme using QD-cavity systems is feasible with high fidelity, and can be experimentally realized with current technologies.
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Affiliation(s)
- Jino Heo
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Chang-Ho Hong
- National Security Research Institute, P.O. Box 1, Yuseong, Daejeon, 34188, Republic of Korea
| | - Min-Sung Kang
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Hyeon Yang
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Hyung-Jin Yang
- Department of Physics, Korea University, Sejong, 339-700, Republic of Korea
| | - Jong-Phil Hong
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Seong-Gon Choi
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea.
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Heo J, Kang MS, Hong CH, Yang HJ, Choi SG, Hong JP. Distribution of hybrid entanglement and hyperentanglement with time-bin for secure quantum channel under noise via weak cross-Kerr nonlinearity. Sci Rep 2017; 7:10208. [PMID: 28860529 PMCID: PMC5579062 DOI: 10.1038/s41598-017-09510-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 07/25/2017] [Indexed: 11/12/2022] Open
Abstract
We design schemes to generate and distribute hybrid entanglement and hyperentanglement correlated with degrees of freedom (polarization and time-bin) via weak cross-Kerr nonlinearities (XKNLs) and linear optical devices (including time-bin encoders). In our scheme, the multi-photon gates (which consist of XKNLs, quantum bus [qubus] beams, and photon-number-resolving [PNR] measurement) with time-bin encoders can generate hyperentanglement or hybrid entanglement. And we can also purify the entangled state (polarization) of two photons using only linear optical devices and time-bin encoders under a noisy (bit-flip) channel. Subsequently, through local operations (using a multi-photon gate via XKNLs) and classical communications, it is possible to generate a four-qubit hybrid entangled state (polarization and time-bin). Finally, we discuss how the multi-photon gate using XKNLs, qubus beams, and PNR measurement can be reliably performed under the decoherence effect.
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Affiliation(s)
- Jino Heo
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Min-Sung Kang
- Center for Quantum Information, Korea Institute of Science and Technology (KIST), Seoul, 136-791, Republic of Korea
| | - Chang-Ho Hong
- National Security Research Institute, P.O. Box 1, Yuseong, Daejeon, 34188, Republic of Korea
| | - Hyung-Jin Yang
- Department of Physics, Korea University, Sejong, 339-700, Republic of Korea
| | - Seong-Gon Choi
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea
| | - Jong-Phil Hong
- College of Electrical and Computer Engineering, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Republic of Korea.
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Kim KM, Han OJ, Kang MS, Huh JY. HLA-A*02:687, a novel allele identified by sequence-based typing in cord blood from a Korean woman. HLA 2017; 90:246-247. [PMID: 28686327 DOI: 10.1111/tan.13088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/11/2017] [Revised: 06/28/2017] [Accepted: 06/28/2017] [Indexed: 11/29/2022]
Abstract
A*02:687 showed one nucleotide difference with A*02:01:01:01 resulting in an amino acid change.
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Affiliation(s)
- K M Kim
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - O J Han
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - M S Kang
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - J Y Huh
- Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
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Cho YW, Kang MS, Kim KT, Do SY, Lim JG, Lee SY, Motamedi GK. Quantitative sensory test for primary restless legs syndrome/Willis–Ekbom disease using the current perception threshold test. Sleep Med 2017; 30:19-23. [DOI: 10.1016/j.sleep.2016.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/02/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
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Kang DM, Kim JE, Lee YJ, Lee HH, Lee CY, Moon SJ, Kang MS. Environmental health centers for asbestos and their health impact surveys and activities. Ann Occup Environ Med 2016; 28:68. [PMID: 27980793 PMCID: PMC5134115 DOI: 10.1186/s40557-016-0154-8] [Citation(s) in RCA: 8] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 11/18/2016] [Indexed: 11/18/2022] Open
Abstract
In 2009, Korea banned the import, transport, and use of asbestos, and the Asbestos Injury Relief Act (AIRA) was promulgated in 2011. Two environmental health centers for asbestos (EHCA), including Pusan National University Yangsan Hospital (PNUYH) and SoonChunHyang University Cheonan Hospital (SCHUCH), were adapted to find environmental asbestos-related diseases (ARDs) and to support the purposes of AIRA. EHCA conducted a health impact survey (HIS) on persons who resided or reside near asbestos factories or mines. A total of 13,433 persons have taken screening examinations in PNUYH EHCA, and 623 persons (4.6%) have had secondary examinations. Of the 21,014 persons who had screening examinations in SCHUCH EHCA, 2490 persons (11.8%) had secondary examinations. Some of those who tested positive for ARDs through HISs filed applications for the asbestos victims’ medical pocketbook (AVMP). Approximately 116 and 612 persons received AVMPs as a result of PNUYH and SCHUCH examinees, respectively. EHCAs have conducted HISs, public relations, and education for asbestos victims, ordinary citizens, and physicians. As HISs are based on voluntary participation, they does not monitor high-risk groups. Active surveillance focusing on high-risk groups has been blocked by the personal information protection act. Although important work has been performed in finding environmental asbestos victims and increasing public awareness on asbestos, it is necessary to improve the current system and registration.
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Affiliation(s)
- Dong-Mug Kang
- Environmental Health Center for Asbestos, Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea ; Preventive and Occupational Medicine, School of Medicine, Pusan National University, Yangsan, 50612 South Korea ; Occupational and Environmental Medicine, Pusan National University Yangsan Hospital, 1st floor, 20, Geumo-ro, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea
| | - Jong-Eun Kim
- Environmental Health Center for Asbestos, Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea ; Occupational and Environmental Medicine, Pusan National University Yangsan Hospital, 1st floor, 20, Geumo-ro, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea
| | - Yong-Jin Lee
- SoonChunhyang University Hospital Cheonan Asbestos Environmental Health Center, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do South Korea
| | - Hyun-Hee Lee
- Environmental Health Center for Asbestos, Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea
| | - Chang-Yeol Lee
- Environmental Health Center for Asbestos, Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea
| | - Seong-Jae Moon
- Environmental Health Center for Asbestos, Pusan National University Yangsan Hospital, Geumo-ro 20, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 50612 South Korea
| | - Min-Sung Kang
- SoonChunhyang University Hospital Cheonan Asbestos Environmental Health Center, 31, Soonchunhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do South Korea ; Department of Public Health, College of Health Science, Korea University, Seoul, South Korea
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Kim SW, Jang EC, Kwon SC, Han W, Kang MS, Nam YH, Lee YJ. Night shift work and inflammatory markers in male workers aged 20-39 in a display manufacturing company. Ann Occup Environ Med 2016; 28:48. [PMID: 27660715 PMCID: PMC5028985 DOI: 10.1186/s40557-016-0135-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 09/02/2016] [Indexed: 11/17/2022] Open
Abstract
Background This study aimed to determine the association between shift work and inflammatory markers, which are independent risk factors of cardiovascular diseases, in male manual workers at a display manufacturing company. Methods This study was conducted between June 1 and July 31, 2015 on 244 male manual workers aged 20–39 years old at a display manufacturing company and investigated age, marital status, education level, alcohol consumption habit, smoking habit, regular exercise habit, sleep duration, sleep debt, sleep insufficiency, past medical history, current and past shift work experience, duration of shift work, and weekly work hours through face-to-face interviews using structured questionnaires and performed blood tests. Study participants were divided into daytime, former shift, and current shift workers based on the work schedule. Chi-square tests and one-way analyses of variance were performed to compare inflammatory markers and cardiovascular disease risk factors, and analyses of covariance were conducted after adjusting for variables potentially affecting inflammatory markers. Results High-sensitivity C-reactive protein (hs-CRP; mean ± standard deviation) levels in daytime, former shift, and current shift workers were 0.65 ± 0.43, 0.75 ± 0.43, and 0.86 ± 0.72 mg/L, respectively (p = 0.029). The leukocyte count (mean ± standard deviation) was 5,556 ± 1,123, 6,210 ± 1,366, and 6,530 ± 1,216 cells/μL, respectively (p < 0.001). Both hs-CRP level and leukocyte count were significantly higher in current shift workers than in daytime workers, and leukocyte count was higher in former shift workers than in daytime workers. After adjusting for variables potentially affecting inflammatory markers, hs-CRP levels (adjusted mean ± standard deviation) in daytime and current shift workers were 0.59 ± 0.06 and 0.92 ± 0.07 mg/L, respectively (p = 0.002). The leukocyte count (adjusted mean ± standard deviation) was 5,557 ± 124 and 6,498 ± 144 cells/μL, respectively (p < 0.001). Conclusions A significant association between shift work and increases in inflammatory markers was confirmed. Because chronic low-grade inflammation plays an important role in the development of cardiovascular diseases, regular follow-up of inflammatory markers as a marker of cardiovascular diseases in shift workers may serve as an early indicator in predicting the effects of shift work on health.
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Affiliation(s)
- Seong-Woo Kim
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Eun-Chul Jang
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Soon-Chan Kwon
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Wook Han
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Min-Sung Kang
- Environmental Health Center for Asbestos, Soonchunhyang University Cheonan Hospital, 67, Suncheonhyang 3-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Young-Hyeon Nam
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
| | - Yong-Jin Lee
- Department of Occupational & Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31, Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea ; Environmental Health Center for Asbestos, Soonchunhyang University Cheonan Hospital, 67, Suncheonhyang 3-gil, Dongnam-gu, Cheonan-si, Chungcheongnam-do 31151 Republic of Korea
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Park EJ, Kim SN, Kang MS, Lee BS, Yoon C, Jeong U, Kim Y, Lee GH, Kim DW, Kim JS. A higher aspect ratio enhanced bioaccumulation and altered immune responses due to intravenously-injected aluminum oxide nanoparticles. J Immunotoxicol 2016; 13:439-48. [PMID: 27042761 DOI: 10.3109/1547691x.2015.1122116] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aluminum oxide nanoparticles (AlO NP) have been widely utilized in a variety of areas, including in the optical, biomedical and electronic fields and in the overall development of nanotechnologies. However, their toxicological profiles are still not fully developed. This study compared the distribution and immunotoxicity of two rod-types of AlO NP. As reported previously, the two types of AlO NP had different aspect ratios (long-type: 6.2 ± 0.6, short-type: 2.1 ± 0.4), but the size and surface charge were very similar. On Day 14 after a single intravenous (IV) injection (1.25 or 5 mg/kg), both AlO NP accumulated primarily in the liver and spleen and altered the levels of redox response-related elements. The accumulated level was higher in mice exposed to the long-type AlO NP compared to the short-type. Additionally, it was noted that the levels of IL-1β, IL-8 and MCP-1 were enhanced in the blood of mice exposed to both types of AlO NP and the percentages of neutrophils and monocytes among all white blood cells were increased only in mice injected with the long-type AlO NP (5 mg/kg). In addition, as compared to the control, co-expression of CD80 and CD86 (necessary for antigen presentation) on splenocytes together with a decreased expression of chemotaxis-related marker (CD195) was attenuated by exposure to the AlO NP, especially the long-type. Taken together, the data suggest that accumulation following a single IV injection with rod-types of AlO NP is strengthened by a high aspect ratio and, subsequently, this accumulation has the potential to influence immune functions in an exposed host.
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Affiliation(s)
- Eun-Jung Park
- a Myunggok Eye Research Institute, Konyang University , Daejeon , Korea
| | - Soo Nam Kim
- b Toxicologic Pathology Center, Korea Institute of Toxicology , Daejeon , Korea
| | - Min-Sung Kang
- b Toxicologic Pathology Center, Korea Institute of Toxicology , Daejeon , Korea
| | - Byoung-Seok Lee
- b Toxicologic Pathology Center, Korea Institute of Toxicology , Daejeon , Korea
| | - Cheolho Yoon
- c Seoul Center, Korea Basic Science Institute , Seoul , Korea
| | - Uiseok Jeong
- d Department of Chemical Engineering , Kwangwoon University , Seoul , Korea
| | - Younghun Kim
- d Department of Chemical Engineering , Kwangwoon University , Seoul , Korea
| | - Gwang-Hee Lee
- e School of Civil, Environmental and Architectural Engineering, Korea University , Seoul , Korea
| | - Dong-Wan Kim
- e School of Civil, Environmental and Architectural Engineering, Korea University , Seoul , Korea
| | - Jong Sung Kim
- f Department of Community Health and Epidemiology , Faculty of Medicine, Dalhousie University , Halifax , NS , Canada
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Liu L, Zhang YD, Li HY, Bi YQ, Yu LJ, Fan XM, Tan J, Jeffers DP, Kang MS. QTL Mapping for Gray Leaf Spot Resistance in a Tropical Maize Population. Plant Dis 2016; 100:304-312. [PMID: 30694127 DOI: 10.1094/pdis-08-14-0825-re] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A tropical gray leaf spot (GLS)-resistant line, YML 32, was crossed to a temperate GLS-susceptible line, Ye 478, to produce an F2:3 population for the identification of quantitative trait loci (QTL) associated with resistance to GLS. The population was evaluated for GLS disease resistance and flowering time at two locations in Yunnan province. Seven QTL using GLS disease scores and six QTL using flowering time were identified on chromosomes 2, 3, 4, 5, and 8 in the YML 32 × Ye 478 maize population. All QTL, except one identified on chromosome 2 using flowering time, were overlapped with the QTL for GLS disease scores. The results indicated that QTL for flowering time in this population strongly corresponded to QTL for GLS resistance. Among the QTL, qRgls.yaas-8-1/qFt.yaas-8 with the largest genetic effect accounted for 17.9 to 18.1 and 11.0 to 21.42% of variations for GLS disease scores and flowering time, respectively, and these should be very useful for improving resistance to GLS, especially in subtropical maize breeding programs. The QTL effects for resistance to GLS were predominantly additive in nature, with a dominance effect having been found for two QTL on the basis of joint segregation genetic analysis and QTL analysis.
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Affiliation(s)
- L Liu
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - Y D Zhang
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - H Y Li
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - Y Q Bi
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - L J Yu
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - X M Fan
- Institute of Food Crops, Yunnan Academy of Agricultural Sciences/Yunnan TianRui Seed Company, Ltd., Kunming 650200, Yunnan Province, China
| | - J Tan
- School of Agriculture, Yunnan University, Kunming 650091, Yunnan Province, China
| | - D P Jeffers
- CIMMYT Yunnan Office/Institute of Food Crops, Yunnan Academy of Agricultural Sciences, Kunming 650200, Yunnan Province, China
| | - M S Kang
- Department of Plant Pathology, Kansas State University, Manhattan KS 66506-5502
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Park SJ, Oh SH, Kang MS, Kim TH, Kang SW, Yoon YC, Kim YH. Reuse of a previously transplanted kidney from a deceased donor using Luminex virtual crossmatching: a case report. Transplant Proc 2015; 46:2083-5. [PMID: 25131112 DOI: 10.1016/j.transproceed.2014.06.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Kidney transplantation is the most desired modality of renal replacement therapy for patients with end-stage renal disease (ESRD). We have attempted to expand the organ donor pool through several methods, including the use of expanded donor criteria. Although previously transplanted kidneys are rarely reused, they can be suitable for transplantation into patients in need. We report a case of successful reuse of a previously transplanted kidney from a deceased donor by means of Luminex virtual crossmatching with the first donor and actual crossmatching with the second donor.
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Affiliation(s)
- S J Park
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - S H Oh
- Department of Laboratory Medicine, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - M S Kang
- Department of Pathology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - T H Kim
- Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - S W Kang
- Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - Y C Yoon
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Cardiovascular Surgery, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea
| | - Y H Kim
- Organ Transplantation Center, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea; Department of Nephrology, College of Medicine, Busan Paik Hospital, Inje University, Busan, Republic of Korea.
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