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Choi E, Lee J, Choo E, Jang EJ, Lee IH. Continuity of care between dyslipidemia patients and multiple providers: A cohort study. PLoS One 2024; 19:e0300745. [PMID: 38696494 PMCID: PMC11065238 DOI: 10.1371/journal.pone.0300745] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/04/2024] [Indexed: 05/04/2024] Open
Abstract
OBJECTIVE This study aimed to investigate the impacts of continuity of care (COC) between patients and multiple providers, i.e., doctors and community pharmacists, on clinical and economic outcomes. METHODS This is a retrospective cohort study and analyzed Korean national claims data for ambulatory care setting between 2007 and 2018. Patients with dyslipidemia newly diagnosed in 2008 were identified. COC between providers and patients was computed using the continuity of care index (COCI). Based on COCIs, the study patients were allocated to four groups: HM/HP, HM/LP, LM/HP, and LM/LP. Each symbol represents H for high, L for low, M for doctor, and P for pharmacist. The primary study outcome was the incidence of atherosclerotic cardiovascular disease (ASCVD). RESULTS 126,710 patients were included. Percentages of patients in the four study groups were as follows: HM/HP 35%, HM/LP 19%, LM/HP 12%, and LM/LP 34%. During the seven-year outcome period, 8,337 patients (6.6%) developed an ASCVD, and percentages in the study groups were as follows; HM/HP 6.2%, HM/LP 6.3%, LM/HP 6.8%, and LM/LP 7.1%. After adjusting for confounding covariates, only the LM/LP group had a significantly higher risk of ASCVD than the reference group, HM/HP (aHR = 1.16 [95% confidence interval = 1.10~1.22]). The risk of inappropriate medication adherence gradually increased 1.03-fold in the HM/LP group, 1.67-fold in the LM/HP, and 2.26-fold in the LM/LP group versus the HM/HP group after adjusting for covariates. Disease-related costs were lower in the HM/HP and LM/HP groups. CONCLUSIONS The study shows that patients with high relational care continuity with doctors and pharmacists achieved better clinical results and utilized health care less, resulting in reduced expenses. Further exploration for the group that exhibits an ongoing relationship solely with pharmacists is warranted.
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Affiliation(s)
- Eunyoung Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
- Department of Pharmacy, Ulsan University Hospital, Ulsan, Republic of Korea
| | - Juhee Lee
- Department of Statistics and Probability, Michigan State University, East Lansing, MI, United States of America
| | - Eunjung Choo
- College of Pharmacy, Ajou University, Suwon, Republic of Korea
| | - Eun Jin Jang
- Department of Informational Statistics, Andong National University, Andong, Republic of Korea
| | - Iyn-Hyang Lee
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
- Department of Health Sciences, University of York, York, United Kingdom
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Song J, Kim D, Jung J, Choi E, Lee Y, Jeong Y, Lee B, Lee S, Shim Y, Won Y, Cho H, Jang DK, Kang HW, Joo JWJ, Jang W. Elucidating immunological characteristics of the adenoma-carcinoma sequence in colorectal cancer patients in South Korea using a bioinformatics approach. Sci Rep 2024; 14:10105. [PMID: 38698020 PMCID: PMC11066069 DOI: 10.1038/s41598-024-56078-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 03/01/2024] [Indexed: 05/05/2024] Open
Abstract
Colorectal cancer (CRC) is one of the top five most common and life-threatening malignancies worldwide. Most CRC develops from advanced colorectal adenoma (ACA), a precancerous stage, through the adenoma-carcinoma sequence. However, its underlying mechanisms, including how the tumor microenvironment changes, remain elusive. Therefore, we conducted an integrative analysis comparing RNA-seq data collected from 40 ACA patients who visited Dongguk University Ilsan Hospital with normal adjacent colons and tumor samples from 18 CRC patients collected from a public database. Differential expression analysis identified 21 and 79 sequentially up- or down-regulated genes across the continuum, respectively. The functional centrality of the continuum genes was assessed through network analysis, identifying 11 up- and 13 down-regulated hub-genes. Subsequently, we validated the prognostic effects of hub-genes using the Kaplan-Meier survival analysis. To estimate the immunological transition of the adenoma-carcinoma sequence, single-cell deconvolution and immune repertoire analyses were conducted. Significant composition changes for innate immunity cells and decreased plasma B-cells with immunoglobulin diversity were observed, along with distinctive immunoglobulin recombination patterns. Taken together, we believe our findings suggest underlying transcriptional and immunological changes during the adenoma-carcinoma sequence, contributing to the further development of pre-diagnostic markers for CRC.
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Affiliation(s)
- Jaeseung Song
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Daeun Kim
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Junghyun Jung
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
- Division of AI Software Convergence, Dongguk University-Seoul, Seoul, 04620, South Korea
- Department of Computational Biomedicine, Cedars-Sinai Medical Center, Hollywood, CA, USA
| | - Eunyoung Choi
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Yubin Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Yeonbin Jeong
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Byungjo Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Sora Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Yujeong Shim
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Youngtae Won
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea
| | - Hyeki Cho
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, 10326, South Korea
| | - Dong Kee Jang
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, 07061, South Korea
| | - Hyoun Woo Kang
- Department of Internal Medicine, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang, 10326, South Korea.
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, 07061, South Korea.
| | - Jong Wha J Joo
- Division of AI Software Convergence, Dongguk University-Seoul, Seoul, 04620, South Korea.
| | - Wonhee Jang
- Department of Life Sciences, Dongguk University, Seoul, 04620, South Korea.
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Won Y, Jang B, Lee SH, Reyzer ML, Presentation KS, Kim H, Caldwell B, Zhang C, Lee HS, Lee C, Trinh VQ, Tan MCB, Kim K, Caprioli RM, Choi E. Oncogenic Fatty Acid Metabolism Rewires Energy Supply Chain in Gastric Carcinogenesis. Gastroenterology 2024; 166:772-786.e14. [PMID: 38272100 PMCID: PMC11040571 DOI: 10.1053/j.gastro.2024.01.027] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
BACKGROUND & AIMS Gastric carcinogenesis develops within a sequential carcinogenic cascade from precancerous metaplasia to dysplasia and adenocarcinoma, and oncogenic gene activation can drive the process. Metabolic reprogramming is considered a key mechanism for cancer cell growth and proliferation. However, how metabolic changes contribute to the progression of metaplasia to dysplasia remains unclear. We have examined metabolic dynamics during gastric carcinogenesis using a novel mouse model that induces Kras activation in zymogen-secreting chief cells. METHODS We generated a Gif-rtTA;TetO-Cre;KrasG12D (GCK) mouse model that continuously induces active Kras expression in chief cells after doxycycline treatment. Histologic examination and imaging mass spectrometry were performed in the GCK mouse stomachs at 2 to 14 weeks after doxycycline treatment. Mouse and human gastric organoids were used for metabolic enzyme inhibitor treatment. The GCK mice were treated with a stearoyl- coenzyme A desaturase (SCD) inhibitor to inhibit the fatty acid desaturation. Tissue microarrays were used to assess the SCD expression in human gastrointestinal cancers. RESULTS The GCK mice developed metaplasia and high-grade dysplasia within 4 months. Metabolic reprogramming from glycolysis to fatty acid metabolism occurred during metaplasia progression to dysplasia. Altered fatty acid desaturation through SCD produces a novel eicosenoic acid, which fuels dysplastic cell hyperproliferation and survival. The SCD inhibitor killed both mouse and human dysplastic organoids and selectively targeted dysplastic cells in vivo. SCD was up-regulated during carcinogenesis in human gastrointestinal cancers. CONCLUSIONS Active Kras expression only in gastric chief cells drives the full spectrum of gastric carcinogenesis. Also, oncogenic metabolic rewiring is an essential adaptation for high-energy demand in dysplastic cells.
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Affiliation(s)
- Yoonkyung Won
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Bogun Jang
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Pathology, Jeju National University College of Medicine and Jeju National University Hospital, Jeju, Republic of Korea
| | - Su-Hyung Lee
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Michelle L Reyzer
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, Tennessee
| | - Kimberly S Presentation
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Hyesung Kim
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Pathology, Jeju National University College of Medicine, Jeju, Republic of Korea
| | - Brianna Caldwell
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Changqing Zhang
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Hye Seung Lee
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Cheol Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Vincent Q Trinh
- The Digital Histology and Advanced Pathology Research, The Institute for Research in Immunology and Cancer (IRIC) of the Université de Montréal, Montréal, Québec, Canada
| | - Marcus C B Tan
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Kwangho Kim
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee; Department of Chemistry, Vanderbilt University, Nashville, Tennessee
| | - Richard M Caprioli
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, Tennessee
| | - Eunyoung Choi
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee.
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Sohn Y, Semyonov BF, El-Mekkoussi H, Wright CVE, Kaestner KH, Choi E, Goldenring JR. Telocyte Recruitment During the Emergence of a Metaplastic Niche in the Stomach. Cell Mol Gastroenterol Hepatol 2024:S2352-345X(24)00098-5. [PMID: 38670488 DOI: 10.1016/j.jcmgh.2024.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND & AIM Telocytes, a recently identified type of sub-epithelial interstitial cell, have garnered attention for their potential roles in tissue homeostasis and repair. However, their contribution to gastric metaplasia remains unexplored. This study aimed to elucidate the role of telocytes in the development of metaplasia within the gastric environment. METHODS To investigate the presence and behavior of telocytes during metaplastic transitions, we utilized both drug-induced acute injury models (using DMP-777 or L635) and a genetically engineered mouse model (Mist1-Kras). Lineage tracing via the Foxl1-CreERT2;R26R-tdTomato mouse model was used to track telocyte migratory dynamics. Immunofluorescence staining was used to identify telocyte markers and evaluate their correlation with metaplasia-related changes. RESULTS We confirmed the existence of FOXL1+/PDGFRα+ double-positive telocytes in the stomach's isthmus region. As metaplasia developed, we observed a marked increase in the telocyte population. The distribution of telocytes expanded beyond the isthmus to encompass the entire gland and closely reflected the expansion of the proliferative cell zone. Rather than a general response to mucosal damage, the shift in telocyte distribution was associated with the establishment of a metaplastic cell niche at the gland base. Furthermore, lineage-tracing experiments highlighted the active recruitment of telocytes to the emerging metaplastic cell niche, and we observed expression of Wnt5a, Bmp4, and Bmp7 in PDGFRα+ telocytes. CONCLUSIONS These results suggest that telocytes contribute to the evolution of a gastric metaplasia niche. The dynamic behavior of these stromal cells, their responsiveness to metaplastic changes, and potential association with Wnt5a, Bmp4, and Bmp7 signaling emphasize the significance of telocytes in tissue adaptation and repair.
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Affiliation(s)
- Yoojin Sohn
- Department of Cell and Developmental Biology; Vanderbilt Program in Developmental Biology; Epithelial Biology Center
| | | | - Hilana El-Mekkoussi
- Department of Genetics and Center for Molecular Studies in Digestive and Liver Diseases, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Christopher V E Wright
- Department of Cell and Developmental Biology; Vanderbilt Program in Developmental Biology; Vanderbilt Center for Stem Cell Biology, Vanderbilt University School of Medicine, Nashville, TN; Epithelial Biology Center
| | - Klaus H Kaestner
- Department of Genetics and Center for Molecular Studies in Digestive and Liver Diseases, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Eunyoung Choi
- Department of Cell and Developmental Biology; Vanderbilt Program in Developmental Biology; Vanderbilt Center for Stem Cell Biology, Vanderbilt University School of Medicine, Nashville, TN; Epithelial Biology Center; Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, TN
| | - James R Goldenring
- Department of Cell and Developmental Biology; Vanderbilt Program in Developmental Biology; Epithelial Biology Center; Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, TN,; Nashville VA Medical Center, Nashville, TN.
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Choi E, Souza VC, Dillon JA, Kebreab E, Mueller ND. Comparative analysis of thermal indices for modeling cold and heat stress in US dairy systems. J Dairy Sci 2024:S0022-0302(24)00733-1. [PMID: 38608948 DOI: 10.3168/jds.2023-24412] [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: 11/08/2023] [Accepted: 03/04/2024] [Indexed: 04/14/2024]
Abstract
Quantifying the impact of thermal stress on milk yields is essential to effectively manage present and future risks in dairy systems. Despite the existence of numerous heat indices designed to communicate stress thresholds, little information is available regarding the accuracy of different indices in estimating milk yield losses from both cold and heat stress at large spatio-temporal scales. To address this gap, we comparatively analyzed the performance of existing thermal indices in capturing US milk yield response to both cold and heat stress at the national scale. We selected four commonly used thermal indices: the Temperature and Humidity Index (THI), Black Globe Humidity Index (BGHI), Adjusted Temperature and Humidity Index (THIadj), and Comprehensive Climate Index (CCI). Using a statistical panel regression model with observational and reanalysis weather data from 1981-2020, we systematically compared the patterns of yield sensitivities and statistical performance of the four indices. We found that the US state-level milk yield variability was better explained by the THIadj and CCI, which combine the effects of temperature, humidity, wind, and solar radiation. Our analysis also reveals a continuous and nonlinear responses of milk yields to a range of cold to heat stress across all four indices. This implies that solely relying on fixed thresholds of these indices to model milk yield changes may be insufficient to capture cumulative thermal stress. Cold extremes reduced milk yields comparably to those impacted by heat extremes on the national scale. Additionally, we found large spatial variability in milk yield sensitivities, implying further limitations to the use of fixed thresholds across locations. Moreover, we found decreased yield sensitivity to thermal stress in the most recent two decades, suggesting adaptive changes in management to reduce weather-related risks.
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Affiliation(s)
- E Choi
- Department of Ecosystem Science and Sustainability & Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523.
| | - V C Souza
- Department of Animal Science, University of California, Davis, CA 95616
| | - J A Dillon
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523
| | - E Kebreab
- Department of Animal Science, University of California, Davis, CA 95616
| | - N D Mueller
- Department of Ecosystem Science and Sustainability & Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523; Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523.
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Choi E, Song J, Lee Y, Jeong Y, Jang W. Prioritizing susceptibility genes for the prognosis of male-pattern baldness with transcriptome-wide association study. Hum Genomics 2024; 18:34. [PMID: 38566255 PMCID: PMC10985920 DOI: 10.1186/s40246-024-00591-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/27/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Male-pattern baldness (MPB) is the most common cause of hair loss in men. It can be categorized into three types: type 2 (T2), type 3 (T3), and type 4 (T4), with type 1 (T1) being considered normal. Although various MPB-associated genetic variants have been suggested, a comprehensive study for linking these variants to gene expression regulation has not been performed to the best of our knowledge. RESULTS In this study, we prioritized MPB-related tissue panels using tissue-specific enrichment analysis and utilized single-tissue panels from genotype-tissue expression version 8, as well as cross-tissue panels from context-specific genetics. Through a transcriptome-wide association study and colocalization analysis, we identified 52, 75, and 144 MPB associations for T2, T3, and T4, respectively. To assess the causality of MPB genes, we performed a conditional and joint analysis, which revealed 10, 11, and 54 putative causality genes for T2, T3, and T4, respectively. Finally, we conducted drug repositioning and identified potential drug candidates that are connected to MPB-associated genes. CONCLUSIONS Overall, through an integrative analysis of gene expression and genotype data, we have identified robust MPB susceptibility genes that may help uncover the underlying molecular mechanisms and the novel drug candidates that may alleviate MPB.
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Affiliation(s)
- Eunyoung Choi
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea
| | - Jaeseung Song
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea
| | - Yubin Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea
| | - Yeonbin Jeong
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea
| | - Wonhee Jang
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
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Kim SJ, Jo Y, Park SJ, Ji E, Lee JY, Choi E, Baek JY, Jang IY, Jung HW, Kim K, Ryu D, Yoo HJ, Kim BJ. Metabolomic profiles of ovariectomized mice and their associations with body composition and frailty-related parameters in postmenopausal women. J Endocrinol Invest 2024:10.1007/s40618-024-02338-x. [PMID: 38493245 DOI: 10.1007/s40618-024-02338-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/12/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Menopause, a dramatical estrogen-deficient condition, is considered the most significant milestone in women's health. PURPOSE To investigate the metabolite changes attributed to estrogen deficiency using random forest (RF)-based machine learning (ML) modeling strategy in ovariectomized (OVX) mice as well as determine the clinical relevance of selected metabolites in older women. METHODS AND RESULTS Untargeted and targeted metabolomic analyses revealed that metabolites related to TCA cycle, sphingolipids, phospholipids, fatty acids, and amino acids, were significantly changed in the plasma and/or muscle of OVX mice. Subsequent ML classifiers based on RF algorithm selected alpha-ketoglutarate (AKG), arginine, carnosine, ceramide C24, phosphatidylcholine (PC) aa C36:6, and PC ae C42:3 in plasma as well as PC aa 34:1, PC aa C34:3, PC aa C36:5, PC aa C32:1, PC aa C36:2, and sphingosine in muscle as top featured metabolites that differentiate the OVX mice from the sham-operated group. When circulating levels of AKG, arginine, and carnosine, which showed the most significant changes in OVX mice blood, were measured in postmenopausal women, higher plasma AKG levels were associated with lower bone mass, weak grip strength, poor physical performance, and increased frailty risk. CONCLUSIONS Metabolomics- and ML-based methods identified the key metabolites of blood and muscle that were significantly changed after ovariectomy in mice, and the clinical implication of several metabolites was investigated by looking at their correlation with body composition and frailty-related parameters in postmenopausal women. These findings provide crucial context for understanding the diverse physiological alterations caused by estrogen deficiency in women.
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Affiliation(s)
- S J Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Y Jo
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - S J Park
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Ji
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J Y Lee
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Choi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J-Y Baek
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - I Y Jang
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - H-W Jung
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - K Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - D Ryu
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea.
| | - H J Yoo
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
| | - B-J Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
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Lee SH, Won Y, Gibbs D, Caldwell B, Goldstein A, Choi E, Goldenring JR. Amphiregulin Switches Progenitor Cell Fate for Lineage Commitment During Gastric Mucosal Regeneration. Gastroenterology 2024:S0016-5085(24)00290-7. [PMID: 38492892 DOI: 10.1053/j.gastro.2024.03.009] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND & AIMS Isthmic progenitors, tissue-specific stem cells in the stomach corpus, maintain mucosal homeostasis by balancing between proliferation and differentiation to gastric epithelial lineages. The progenitor cells rapidly adopt an active state in response to mucosal injury. However, it remains unclear how the isthmic progenitor cell niche is controlled during the regeneration of damaged epithelium. METHODS We recapitulated tissue recovery process after acute mucosal injury in the mouse stomach. Bromodeoxyuridine incorporation was used to trace newly generated cells during the injury and recovery phases. To define the epithelial lineage commitment process during recovery, we performed single-cell RNA-sequencing on epithelial cells from the mouse stomachs. We validated the effects of amphiregulin (AREG) on mucosal recovery, using recombinant AREG treatment or AREG-deficient mice. RESULTS We determined that an epidermal growth factor receptor ligand, AREG, can control progenitor cell lineage commitment. Based on the identification of lineage-committed subpopulations in the corpus epithelium through single-cell RNA-sequencing and bromodeoxyuridine incorporation, we showed that isthmic progenitors mainly transition into short-lived surface cell lineages but are less frequently committed to long-lived parietal cell lineages in homeostasis. However, mucosal regeneration after damage directs the lineage commitment of isthmic progenitors towards parietal cell lineages. During recovery, AREG treatment promoted repopulation with parietal cells, while suppressing surface cell commitment of progenitors. In contrast, transforming growth factor-α did not alter parietal cell regeneration, but did induce expansion of surface cell populations. AREG deficiency impairs parietal cell regeneration but increases surface cell commitment. CONCLUSIONS These data demonstrate that different epidermal growth factor receptor ligands can distinctly regulate isthmic progenitor-driven mucosal regeneration and lineage commitment.
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Affiliation(s)
- Su-Hyung Lee
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Yoonkyung Won
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - David Gibbs
- Institute for Systems Biology, Seattle, Washington
| | - Brianna Caldwell
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Anna Goldstein
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Eunyoung Choi
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - James R Goldenring
- Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee.
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Mussakhanuly N, Choi E, L Chin R, Wang Y, Seidel J, Green MA, M Soufiani A, Hao X, Yun JS. Multifunctional Surface Treatment against Imperfections and Halide Segregation in Wide-Band Gap Perovskite Solar Cells. ACS Appl Mater Interfaces 2024; 16:7961-7972. [PMID: 38290432 DOI: 10.1021/acsami.3c12616] [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: 02/01/2024]
Abstract
Mixed-halide wide-band gap perovskites (WBPs) still suffer from losses due to imperfections within the absorber and the segregation of halide ions under external stimuli. Herein, we design a multifunctional passivator (MFP) by mixing bromide salt, formamidinium bromide (FABr) with a p-type self-assembled monolayer (SAM) to target the nonradiative recombination pathways. Photoluminescence measurement shows considerable suppression of nonradiative recombination rates after treatment with FABr. However, WBPs still remained susceptible to halide segregation for which the addition of 25% p-type SAM was effective to decelerate segregation. It is observed that FABr can act as a passivating agent of the donor impurities, shifting the Fermi-level (Ef) toward the mid-band gap, while p-type SAM could cause an overweight of Ef toward the valence band. Favorable band bending at the interface could prevent the funneling of carriers toward I-rich clusters. Instead, charge carriers funnel toward an integrated SAM, preventing the accumulation of polaron-induced strain on the lattice. Consequently, n-i-p structured devices with an optimal MFP treatment show an average open-circuit voltage (VOC) increase of about 20 mV and fill factor (FF) increase by 4% compared with the control samples. The unencapsulated devices retained 95% of their initial performance when stored at room temperature under 40% relative humidity for 2800 h.
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Affiliation(s)
- Nursultan Mussakhanuly
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K
- Dimond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, Oxfordshire, U.K
| | - Robert L Chin
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Yihao Wang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Jan Seidel
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Martin A Green
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Arman M Soufiani
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Xiaojing Hao
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Jae S Yun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford GU2 7XH, Surrey, U.K
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10
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Contreras-Panta EW, Choi E, Goldenring JR. The Fibroblast Landscape in Stomach Carcinogenesis. Cell Mol Gastroenterol Hepatol 2024; 17:671-678. [PMID: 38342299 PMCID: PMC10957461 DOI: 10.1016/j.jcmgh.2024.02.001] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/13/2024]
Abstract
Numerous recent studies using single cell RNA sequencing and spatial transcriptomics have shown the vast cell heterogeneity, including epithelial, immune, and stromal cells, present in the normal human stomach and at different stages of gastric carcinogenesis. Fibroblasts within the metaplastic and dysplastic mucosal stroma represent key contributors to the carcinogenic microenvironment in the stomach. The heterogeneity of fibroblast populations is present in the normal stomach, but plasticity within these populations underlies their alterations in association with both metaplasia and dysplasia. In this review, we summarize and discuss efforts over the past several years to study the fibroblast components in human stomach from normal to metaplasia, dysplasia, and cancer. In the stomach, myofibroblast populations increase during late phase carcinogenesis and are a source of matrix proteins. PDGFRA-expressing telocyte-like cells are present in normal stomach and expand during metaplasia and dysplasia in close proximity with epithelial lineages, likely providing support for both normal and metaplastic progenitor niches. The alterations in fibroblast transcriptional signatures across the stomach carcinogenesis process indicate that fibroblast populations are likely as plastic as epithelial populations during the evolution of carcinogenesis.
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Affiliation(s)
- Ela W Contreras-Panta
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Eunyoung Choi
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - James R Goldenring
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee; Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee.
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11
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Kim H, Jang B, Zhang C, Caldwell B, Park DJ, Kong SH, Lee HJ, Yang HK, Goldenring JR, Choi E. Targeting Stem Cells and Dysplastic Features With Dual MEK/ERK and STAT3 Suppression in Gastric Carcinogenesis. Gastroenterology 2024; 166:117-131. [PMID: 37802423 PMCID: PMC10841458 DOI: 10.1053/j.gastro.2023.09.040] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/21/2023] [Accepted: 09/15/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUNDS & AIMS Precancerous metaplasia progression to dysplasia can increase the risk of gastric cancers. However, effective strategies to specifically target these precancerous lesions are currently lacking. To address this, we aimed to identify key signaling pathways that are upregulated during metaplasia progression and critical for stem cell survival and function in dysplasia. METHODS To assess the response to chemotherapeutic drugs, we used metaplastic and dysplastic organoids derived from Mist1-Kras mice and 20 human precancerous organoid lines established from patients with gastric cancer. Phospho-antibody array analysis and single-cell RNA-sequencing were performed to identify target cell populations and signaling pathways affected by pyrvinium, a putative anticancer drug. Pyrvinium was administered to Mist1-Kras mice to evaluate drug effectiveness in vivo. RESULTS Although pyrvinium treatment resulted in growth arrest in metaplastic organoids, it induced cell death in dysplastic organoids. Pyrvinium treatment significantly downregulated phosphorylation of ERK and signal transducer and activator of transcription 3 (STAT3) as well as STAT3-target genes. Single-cell RNA-sequencing data analyses revealed that pyrvinium specifically targeted CD133+/CD166+ stem cell populations, as well as proliferating cells in dysplastic organoids. Pyrvinium inhibited metaplasia progression and facilitated the restoration of normal oxyntic glands in Mist1-Kras mice. Furthermore, pyrvinium exhibited suppressive effects on the growth and survival of human organoids with dysplastic features, through simultaneous blocking of the MEK/ERK and STAT3 signaling pathways. CONCLUSIONS Through its dual blockade of MEK/ERK and STAT3 signaling pathways, pyrvinium can effectively induce growth arrest in metaplasia and cell death in dysplasia. Therefore, our findings suggest that pyrvinium is a promising chemotherapeutic agent for reprogramming the precancerous milieu to prevent gastric cancer development.
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Affiliation(s)
- Hyesung Kim
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Jeju National University College of Medicine, Jeju, Republic of Korea
| | - Bogun Jang
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Pathology, Jeju National University College of Medicine, Jeju, Republic of Korea
| | - Changqing Zhang
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Brianna Caldwell
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Do-Joong Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyuk-Joon Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Han-Kwang Yang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - James R Goldenring
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
| | - Eunyoung Choi
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee.
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12
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Jang B, Kim H, Lee S, Won Y, Kaji I, Coffey RJ, Choi E, Goldenring JR. Dynamic tuft cell expansion during gastric metaplasia and dysplasia. J Pathol Clin Res 2024; 10:e352. [PMID: 38117182 PMCID: PMC10766036 DOI: 10.1002/cjp2.352] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 12/21/2023]
Abstract
Tuft cells are chemosensory cells associated with luminal homeostasis, immune response, and tumorigenesis in the gastrointestinal tract. We aimed to elucidate alterations in tuft cell populations during gastric atrophy and tumorigenesis in humans with correlative comparison to relevant mouse models. Tuft cell distribution was determined in human stomachs from organ donors and in gastric pathologies including Ménétrier's disease, Helicobacter pylori gastritis, intestinal metaplasia (IM), and gastric tumors. Tuft cell populations were examined in Lrig1-KrasG12D , Mist1-KrasG12D , and MT-TGFα mice. Tuft cells were evenly distributed throughout the entire normal human stomach, primarily concentrated in the isthmal region in the fundus. Ménétrier's disease stomach showed increased tuft cells. Similarly, Lrig1-Kras mice and mice overexpressing TGFα showed marked foveolar hyperplasia and expanded tuft cell populations. Human stomach with IM or dysplasia also showed increased tuft cell numbers. Similarly, Mist1-Kras mice had increased numbers of tuft cells during metaplasia and dysplasia development. In human gastric cancers, tuft cells were rarely observed, but showed positive associations with well-differentiated lesions. In mouse gastric cancer xenografts, tuft cells were restricted to dysplastic well-differentiated mucinous cysts and were lost in less differentiated cancers. Taken together, tuft cell populations increased in atrophic human gastric pathologies, metaplasia, and dysplasia, but were decreased in gastric cancers. Similar findings were observed in mouse models, suggesting that, while tuft cells are associated with precancerous pathologies, their loss is most associated with the progression to invasive cancer.
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Affiliation(s)
- Bogun Jang
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Jeju National University College of MedicineJejuRepublic of Korea
- Department of PathologyJeju National University HospitalJejuRepublic of Korea
| | - Hyesung Kim
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Jeju National University College of MedicineJejuRepublic of Korea
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTNUSA
| | - Su‐Hyung Lee
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
| | - Yoonkyung Won
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
| | - Izumi Kaji
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTNUSA
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
| | - Robert J Coffey
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
- Department of Internal MedicineVanderbilt University Medical CenterNashvilleTNUSA
| | - Eunyoung Choi
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTNUSA
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
| | - James R Goldenring
- Section of Surgical SciencesVanderbilt University Medical CenterNashvilleTNUSA
- Department of Cell and Developmental BiologyVanderbilt UniversityNashvilleTNUSA
- Epithelial Biology CenterVanderbilt University Medical CenterNashvilleTNUSA
- Nashville VA Medical CenterNashvilleTNUSA
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13
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Han EQ, Lyu M, Choi E, Zhao Y, Zhang Y, Lee J, Lee SM, Jiao Y, Ahmad SHA, Seidel J, Yun JS, Yun JH, Wang L. High-Performance Indoor Perovskite Solar Cells by Self-Suppression of Intrinsic Defects via a Facile Solvent-Engineering Strategy. Small 2024; 20:e2305192. [PMID: 37718499 DOI: 10.1002/smll.202305192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/31/2023] [Indexed: 09/19/2023]
Abstract
Lead halide perovskite solar cells have been emerging as very promising candidates for applications in indoor photovoltaics. To maximize their indoor performance, it is of critical importance to suppress intrinsic defects of the perovskite active layer. Herein, a facile solvent-engineering strategy is developed for effective suppression of both surface and bulk defects in lead halide perovskite indoor solar cells, leading to a high efficiency of 35.99% under the indoor illumination of 1000 lux Cool-white light-emitting diodes. Replacing dimethylformamide (DMF) with N-methyl-2-pyrrolidone (NMP) in the perovskite precursor solvent significantly passivates the intrinsic defects within the thus-prepared perovskite films, prolongs the charge carrier lifetimes and reduces non-radiative charge recombination of the devices. Compared to the DMF, the much higher interaction energy between NMP and formamidinium iodide/lead halide contributes to the markedly improved quality of the perovskite thin films with reduced interfacial halide deficiency and non-radiative charge recombination, which in turn enhances the device performance. This work paves the way for developing efficient indoor perovskite solar cells for the increasing demand for power supplies of Internet-of-Things devices.
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Affiliation(s)
- E Q Han
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
| | - Miaoqiang Lyu
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Yuying Zhao
- College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yurou Zhang
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
| | - Jaeho Lee
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
| | - Su-Min Lee
- Air and Environment Energy Nexus Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Gyeonggi-do, 17104, Republic of Korea
| | - Yalong Jiao
- College of Physics, Hebei Key Laboratory of Photophysics Research and Application, Hebei Normal University, Shijiazhuang, 050024, China
| | - Syed Haseeb Ali Ahmad
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
| | - Jan Seidel
- School of Materials Science and Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET), University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Jae Sung Yun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Jung-Ho Yun
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
- Air and Environment Energy Nexus Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Gyeonggi-do, 17104, Republic of Korea
| | - Lianzhou Wang
- Nanomaterials Centre, School of Chemical Engineering, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland (St Lucia), Brisbane, Queensland, 4072, Australia
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Lee Y, Song J, Jeong Y, Choi E, Ahn C, Jang W. Meta-analysis of single-cell RNA-sequencing data for depicting the transcriptomic landscape of chronic obstructive pulmonary disease. Comput Biol Med 2023; 167:107685. [PMID: 37976829 DOI: 10.1016/j.compbiomed.2023.107685] [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: 07/24/2023] [Revised: 10/17/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a respiratory disease characterized by airflow limitation and chronic inflammation of the lungs that is a leading cause of death worldwide. Since the complete pathological mechanisms at the single-cell level are not fully understood yet, an integrative approach to characterizing the single-cell-resolution landscape of COPD is required. To identify the cell types and mechanisms associated with the development of COPD, we conducted a meta-analysis using three single-cell RNA-sequencing datasets of COPD. Among the 154,011 cells from 16 COPD patients and 18 healthy subjects, 17 distinct cell types were observed. Of the 17 cell types, monocytes, mast cells, and alveolar type 2 cells (AT2 cells) were found to be etiologically implicated in COPD based on genetic and transcriptomic features. The most transcriptomically diversified states of the three etiological cell types showed significant enrichment in immune/inflammatory responses (monocytes and mast cells) and/or mitochondrial dysfunction (monocytes and AT2 cells). We then identified three chemical candidates that may potentially induce COPD by modulating gene expression patterns in the three etiological cell types. Overall, our study suggests the single-cell level mechanisms underlying the pathogenesis of COPD and may provide information on toxic compounds that could be potential risk factors for COPD.
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Affiliation(s)
- Yubin Lee
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Jaeseung Song
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Yeonbin Jeong
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Eunyoung Choi
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
| | - Chulwoo Ahn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
| | - Wonhee Jang
- Department of Life Sciences, Dongguk University, Seoul, 04620, Republic of Korea.
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Kim M, Byun SJ, Park SG, Kim B, Oh YK, Cho KH, Kim JH, Choi E. Assessment of Bladder Filling Type on Radiation Dose to Organs at Risk in MR-Guided Intracavity Brachytherapy for Cervical Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e657. [PMID: 37785948 DOI: 10.1016/j.ijrobp.2023.06.2088] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In this study, we evaluated whether the classification of bladder shape affects the absorbed dose (Gy) of OARs and its geometrical position to normal organs in MR-guided intracavitary brachytherapy (ICBT). MATERIALS/METHODS In this study, 269 patients who underwent MR-guided ICBT for cervical cancer from 2016 to 2022 were included. The applicator-inserted bladder filling type (BFT) classification was divided into three types (tilted, curved, and other shapes: group E). The anatomical positional relationship between the uterus and its surroundings was measured on pre-MR images and ICBT simulation MR images. Spearman's rank correlation analysis was used for bladder volume and OAR dose according to BFT. Anatomical differences were analyzed by ANOVA by measuring the distance from the center to both bladder walls. RESULTS In the correlation analysis considering the shape of the bladder, the tilted, curved, and group E had Spearman's ρ of 0.211; -0.323, 0.412; -0.307 and -0.035; -0.209 for maximum absorbed dose (D2cc) of bladder and small bowel, respectively. It was statistically significant in the tilted type and curved type. The average left and right bladder lengths differences of the tilted type were the highest at 8.47 cm and 7.11 cm, respectively. It was a statistically significant between bladder shape and the difference in left and right bladder lengths differences (p< 0.01). CONCLUSION In this study, it was confirmed that bladder distension increased the maximum bladder dose (D2cc) and decreased the maximum bowel dose (D2cc) to the tilted type and curved type. In addition, if the left and right bladder lengths are measured in pre-MR, the degree of bladder distension can be evaluated in advance by checking the shape of the bladder in the case of the tilting type before ICBT. Based on these findings, a prospective study is needed to evaluate the effect of ICBT on cervical cancer treatment outcomes through bladder type classification.
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Affiliation(s)
- M Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - S J Byun
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - S G Park
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - B Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - Y K Oh
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - K H Cho
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea
| | - J H Kim
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
| | - E Choi
- Department of Radiation Oncology, Keimyung University Dongsan Hospital, Daegu, Korea, Republic of (South) Korea; Department of Radiation Oncology, Keimyung University School of medicine, Daegu, Korea, Republic of (South) Korea
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Shin Y, Bae K, Lee S, Kim H, Shin D, Kim D, Choi E, Moon HS, Lee J. Healable Anti-Corrosive and Wear-Resistant Silicone-Oil-Impregnated Porous Oxide Layer of Aluminum Alloy by Plasma Electrolytic Oxidation. Nanomaterials (Basel) 2023; 13:2582. [PMID: 37764611 PMCID: PMC10537220 DOI: 10.3390/nano13182582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 09/29/2023]
Abstract
Lubricant (or oil)-impregnated porous surface has been considered as a promising surface treatment to realize multifunctionality. In this study, silicone oil was impregnated into a hard porous oxide layer created by the plasma electrolytic oxidation (PEO) of aluminum (Al) alloys. The monolayer of polydimethylsiloxane (PDMS) from silicone oil is formed on a porous oxide layer; thus, a water-repellent slippery oil-impregnated surface is realized on Al alloy, showing a low contact angle hysteresis of less than 5°. This water repellency significantly enhanced the corrosion resistance by more than four orders of magnitude compared to that of the PEO-treated Al alloy without silicone oil impregnation. The silicone oil within the porous oxide layer also provides a lubricating effect to improve wear resistance by reducing friction coefficients from ~0.6 to ~0.1. In addition, because the PDMS monolayer can be restored by frictional heat, the water-repellent surface is tolerant to physical damage to the oxide surface. Hence, the results of this fundamental study provide a new approach for the post-treatment of PEO for Al alloys.
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Affiliation(s)
- Yeji Shin
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
| | - Kichang Bae
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
| | - Sumin Lee
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
| | - Hweeyong Kim
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
| | - Dongmin Shin
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
| | - Donghyun Kim
- Korea Institute of Ceramic Engineering and Technology, Jinju 52851, Republic of Korea;
| | - Eunyoung Choi
- Korea Institute of Industrial Technology, Busan 46938, Republic of Korea; (E.C.); (H.-S.M.)
| | - Hyoung-Seok Moon
- Korea Institute of Industrial Technology, Busan 46938, Republic of Korea; (E.C.); (H.-S.M.)
| | - Junghoon Lee
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea; (Y.S.); (K.B.); (S.L.); (H.K.); (D.S.)
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Arceneaux D, Chen Z, Simmons AJ, Heiser CN, Southard-Smith AN, Brenan MJ, Yang Y, Chen B, Xu Y, Choi E, Campbell JD, Liu Q, Lau KS. A contamination focused approach for optimizing the single-cell RNA-seq experiment. iScience 2023; 26:107242. [PMID: 37496679 PMCID: PMC10366499 DOI: 10.1016/j.isci.2023.107242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 03/10/2023] [Accepted: 06/26/2023] [Indexed: 07/28/2023] Open
Abstract
Droplet-based single-cell RNA-seq (scRNA-seq) data are plagued by ambient contaminations caused by nucleic acid material released by dead and dying cells. This material is mixed into the buffer and is co-encapsulated with cells, leading to a lower signal-to-noise ratio. Although there exist computational methods to remove ambient contaminations post-hoc, the reliability of algorithms in generating high-quality data from low-quality sources remains uncertain. Here, we assess data quality before data filtering by a set of quantitative, contamination-based metrics that assess data quality more effectively than standard metrics. Through a series of controlled experiments, we report improvements that can minimize ambient contamination outside of tissue dissociation, via cell fixation, improved cell loading, microfluidic dilution, and nuclei versus cell preparation; many of these parameters are inaccessible on commercial platforms. We provide end-users with insights on factors that can guide their decision-making regarding optimizations that minimize ambient contamination, and metrics to assess data quality.
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Affiliation(s)
- Deronisha Arceneaux
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Zhengyi Chen
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Alan J. Simmons
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Cody N. Heiser
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Austin N. Southard-Smith
- McDonnell Genome Institute and Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Yilin Yang
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Bob Chen
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Yanwen Xu
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Eunyoung Choi
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Joshua D. Campbell
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Qi Liu
- Department of Biostatistics and Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ken S. Lau
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
- Department of Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
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18
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Jeong Y, Song J, Lee Y, Choi E, Won Y, Kim B, Jang W. A Transcriptome-Wide Analysis of Psoriasis: Identifying the Potential Causal Genes and Drug Candidates. Int J Mol Sci 2023; 24:11717. [PMID: 37511476 PMCID: PMC10380797 DOI: 10.3390/ijms241411717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/14/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by cutaneous eruptions and pruritus. Because the genetic backgrounds of psoriasis are only partially revealed, an integrative and rigorous study is necessary. We conducted a transcriptome-wide association study (TWAS) with the new Genotype-Tissue Expression version 8 reference panels, including some tissue and multi-tissue panels that were not used previously. We performed tissue-specific heritability analyses on genome-wide association study data to prioritize the tissue panels for TWAS analysis. TWAS and colocalization (COLOC) analyses were performed with eight tissues from the single-tissue panels and the multi-tissue panels of context-specific genetics (CONTENT) to increase tissue specificity and statistical power. From TWAS, we identified the significant associations of 101 genes in the single-tissue panels and 64 genes in the multi-tissue panels, of which 26 genes were replicated in the COLOC. Functional annotation and network analyses identified that the genes were associated with psoriasis and/or immune responses. We also suggested drug candidates that interact with jointly significant genes through a conditional and joint analysis. Together, our findings may contribute to revealing the underlying genetic mechanisms and provide new insights into treatments for psoriasis.
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Affiliation(s)
- Yeonbin Jeong
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
| | - Jaeseung Song
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
| | - Yubin Lee
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
| | - Eunyoung Choi
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
| | - Youngtae Won
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
| | - Byunghyuk Kim
- Department of Life Sciences, Dongguk University-Seoul, Goyang 10326, Republic of Korea
| | - Wonhee Jang
- Department of Life Sciences, Dongguk University, Seoul 04620, Republic of Korea
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19
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Lee SH, Contreras Panta EW, Gibbs D, Won Y, Min J, Zhang C, Roland JT, Hong SH, Sohn Y, Krystofiak E, Jang B, Ferri L, Sangwan V, Ragoussis J, Camilleri-Broët S, Caruso J, Chen-Tanyolac C, Strasser M, Gascard P, Tlsty TD, Huang S, Choi E, Goldenring JR. Apposition of fibroblasts with metaplastic gastric cells promotes dysplastic transition. Gastroenterology 2023:S0016-5085(23)00731-X. [PMID: 37196797 PMCID: PMC10375042 DOI: 10.1053/j.gastro.2023.04.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/19/2023]
Abstract
BACKGROUND & AIMS Elements of field cancerization including atrophic gastritis, metaplasia and dysplasia promote gastric cancer development in association with chronic inflammation. However, it remains unclear how stroma changes during carcinogenesis and how the stroma contributes to progression of gastric preneoplasia. Here we investigated heterogeneity of fibroblasts, one of the most important elements in the stroma, and their roles in neoplastic transformation of metaplasia. METHODS We utilized single cell transcriptomics to evaluate the cellular heterogeneity of mucosal cells from human gastric cancer patients. Tissue sections from the same cohort and tissue microarrays were used to identify the geographical distribution of distinct fibroblast subsets. We further evaluated the role of fibroblasts from pathologic mucosa in dysplastic progression of metaplastic cells using patient-derived metaplastic gastroids and fibroblasts. RESULTS We identified four subsets of fibroblasts within stromal cells defined by the differential expression of PDGFRA, FBLN2, ACTA2 or PDGFRB. Each subset was distributed distinctively throughout stomach tissues with different proportions at each pathologic stage. The PDGFRα+ subset expanded in metaplasia and cancer compared with normal, maintaining a close proximity with the epithelial compartment. Co-culture of metaplasia- or cancer-derived fibroblasts with gastroids showing the characteristics of spasmolytic polypeptide-expressing metaplasia (SPEM) induced disordered growth, loss of metaplastic markers and increases in markers of dysplasia. Culture of metaplastic gastroids with conditioned media from metaplasia- or cancer-derived fibroblasts also promoted dysplastic transition. CONCLUSIONS These findings indicate that fibroblast associations with metaplastic epithelial cells can facilitate direct transition of metaplastic SPEM cell lineages into dysplastic lineages.
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Affiliation(s)
- Su-Hyung Lee
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Ela W Contreras Panta
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - David Gibbs
- Institute for Systems Biology, Seattle, WA, United States
| | - Yoonkyung Won
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Jimin Min
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Changqing Zhang
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Joseph T Roland
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Se-Hoon Hong
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Yoojin Sohn
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - Evan Krystofiak
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - Bogun Jang
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Pathology, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Lorenzo Ferri
- Division of Thoracic Surgery, Department of Surgery, McGill University, Montreal, QC, Canada
| | - Veena Sangwan
- Division of Thoracic Surgery, Department of Surgery, McGill University, Montreal, QC, Canada
| | - Jiannis Ragoussis
- McGill Genome Centre, Department of Human Genetics, Victor Phillip Dahdaleh Institute of Genomic Medicine, McGill University, Montreal, QC, Canada
| | - Sophie Camilleri-Broët
- Division of Thoracic Surgery, Department of Pathology, McGill University, Montreal, QC, Canada
| | - Joseph Caruso
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Chira Chen-Tanyolac
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | | | - Philippe Gascard
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Thea D Tlsty
- Department of Pathology, University of California, San Francisco, San Francisco, CA, United States
| | - Sui Huang
- Institute for Systems Biology, Seattle, WA, United States
| | - Eunyoung Choi
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN
| | - James R Goldenring
- Section of Surgical Sciences, Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN; Nashville VA Medical Center, Nashville, TN, United States.
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20
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Ailshire JA, Herrera CA, Choi E, Osuna M, Suzuki E. Cross-national differences in wealth inequality in health services and caregiving used near the end of life. EClinicalMedicine 2023; 58:101911. [PMID: 36969343 PMCID: PMC10030998 DOI: 10.1016/j.eclinm.2023.101911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
Background Socioeconomic inequality in access to and use of health services and social care provided near the end of life, or end-of-life care (EOLC), is not well understood in many countries. We examined wealth inequality in EOLC-hospital, nursing home, and hospice use and receipt of formal and informal caregiving-in 22 countries in Europe, Asia (South Korea), and North America (United States, Mexico). Methods We used harmonized data from nationally representative studies of people aged 50 and older that collected information on healthcare utilisation and caregiving receipt in the time preceding death. We categorized countries according to their level of public long-term care (LTC) spending and examined EOLC prevalence across countries. We used logistic regression models to estimate wealth inequality in each type of EOLC. Findings In the USA the least wealthy had more hospital (OR 1.30, p = 0.008) and nursing home/care use (OR 1.88, p < 0.001). In South Korea the least wealthy had more nursing home/care use (OR 2.24, p = 0.003). The least wealthy in high LTC Europe had less hospice use (OR 0.56, p = 0.003). The least wealthy were also less likely to be hospitalized in European countries with low LTC spending (OR 0.81, p = 0.04), but more likely to receive informal caregiving (OR 1.25, p = 0.033). Formal care was more common among the least wealthy in high LTC Europe (OR 1.57, p = 0.002), the USA (OR 1.42, p < 0.001) and South Korea (OR 1.69, p = 0.028), but less common among the least wealthy in Mexico (OR 0.17, p < 0.001). Interpretation Wealth inequality in EOLC exists across countries and reflects differences in the organization, financing, and delivery of care in different countries. The findings highlight the need to consider equity in current and future plans to improve EOLC access. Funding United States National Institute on Aging Grant R01AG030153.
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Affiliation(s)
- Jennifer A. Ailshire
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | - Cristian A. Herrera
- The World Bank Group, Washington, DC, USA
- Department of Public Health, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eunyoung Choi
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | - Margarita Osuna
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, USA
| | - Elina Suzuki
- The Organization for Economic Co-operation and Development, Paris, France
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21
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Choi E, Su C, Wu J, Aredo J, Neal J, Leung A, Backhus L, Marchand L, Liang S, Cheng I, Wakelee H, Han S. OA01.01 Second Primary Lung Cancer among Lung Cancer Survivors Who Never Smoked. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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22
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Bae K, Kang M, Shin Y, Choi E, Kim YM, Lee J. Multifunctional Edible Oil-Impregnated Nanoporous Oxide Layer on AISI 304 Stainless Steel. Nanomaterials (Basel) 2023; 13:807. [PMID: 36903685 PMCID: PMC10005306 DOI: 10.3390/nano13050807] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/18/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Slippery liquid-infused porous surface (SLIPS) realized on commercial materials provides various functionalities, such as corrosion resistance, condensation heat transfer, anti-fouling, de/anti-icing, and self-cleaning. In particular, perfluorinated lubricants infused in fluorocarbon-coated porous structures have showed exceptional performances with durability; however, they caused several issues in safety, due to their difficulty in degradation and bio-accumulation. Here, we introduce a new approach to create the multifunctional lubricant-impregnated surface with edible oils and fatty acid, which are also safe to human body and degradable in nature. The edible oil-impregnated anodized nanoporous stainless steel surface shows a significantly low contact angle hysteresis and sliding angle, which is similar with general surface of fluorocarbon lubricant-infused systems. The edible oil impregnated in the hydrophobic nanoporous oxide surface also inhibits the direct contact of external aqueous solution to a solid surface structure. Due to such de-wetting property caused by a lubricating effect of edible oils, the edible oil-impregnated stainless steel surface shows enhanced corrosion resistance, anti-biofouling and condensation heat transfer with reduced ice adhesion.
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Affiliation(s)
- Kichang Bae
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Minju Kang
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Yeji Shin
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Eunyoung Choi
- Dongnam Division, Korea Institute of Industrial Technology, Yangsan 50623, Republic of Korea
| | - Young-Mog Kim
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Republic of Korea
| | - Junghoon Lee
- Department of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea
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Zhao E, Crimmins E, Zelinski E, Choi E. ASSOCIATIONS BETWEEN MEDIA CONSUMPTION AND AGEIST ATTITUDES: A CROSS-NATIONAL ANALYSIS. Innov Aging 2022. [PMCID: PMC9766797 DOI: 10.1093/geroni/igac059.1603] [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: 12/24/2022] Open
Abstract
The mass media has been thought to be associated with public opinion, often creating and sustaining stereotypes. However, little is known about the role of media exposure in people’s ageist attitudes, particularly at a cross-national level. This study examines whether the daily use of different media types is associated with personal attitudes towards older people. We analyzed data from 59,103 adults across 54 countries, using the World Value Survey wave 6 (2010-2014). Personal ageist attitudes were assessed by whether participants agree that older people are a burden on society. We used logistic regression, controlling for individual- and country-level factors. Our findings suggest that people’s exposure to media is significantly associated with their attitudes towards older adults, but differently by the platform and respondents’ age. Those who used newspaper (OR:1.66, CI:1.38-1.98), magazines (OR:1.67, CI:1.27-2.20), and radio (OR:1.42, CI:1.23-1.65) were more likely to have negative attitudes toward older people, whereas those who used TV (OR:0.62, CI:0.53-0.72) and internet (OR:0.76, CI:0.65-0.89) were less likely to. Further, the effects of newspaper and radio consumption on people’s attitudes were moderated by respondents’ age. Younger adults’ ageist attitudes had a stronger negative relationship with these media types compared to those that are older. For the older age group, in contrast, more consumption of newspapers and radio are associated with less ageist attitudes. Future studies may focus on the content of each platform and assess their effect on people’s ageist attitudes by age groups in order to understand how to foster a more age-friendly media environment.
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Affiliation(s)
- Erfei Zhao
- University of Southern California, Leonard Davis School of Gerontology, Los Angeles, California, United States
| | - Eileen Crimmins
- University of Southern California, Los Angeles, California, United States
| | - Elizabeth Zelinski
- University of Southern California, Los Angeles, California, United States
| | - Eunyoung Choi
- School of Global Public Health, New York University, Los Angeles, California, United States
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Choi E, Zelinski E, Ailshire J, Jang Y. NEIGHBORHOOD ADVERSITY AND COGNITIVE HEALTH: THE MODIFYING ROLE OF SELF-PERCEPTIONS OF AGING. Innov Aging 2022. [PMCID: PMC9770534 DOI: 10.1093/geroni/igac059.1606] [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: 12/24/2022] Open
Abstract
Research has documented the increased risk of cognitive impairment among older adults living in socioeconomically disadvantaged neighborhoods. Much less is known about the factors that moderate this risk. We conceptualized self-perception of aging (SPA) as a potential moderator because it reflects core beliefs about the self at older ages but is also closely linked to late-life health. Guided by the diathesis-stress model that postulates the interactive roles of cognitive styles and stressors in shaping health outcomes, we hypothesized that more positive SPA would buffer the effects of neighborhood adversity on cognitive function. Using data from the Health and Retirement Study (2008–2016), the analytic sample consisted of adults aged 54 and older (N=5,902). Cognitive function was assessed by the Telephone Interview for Cognitive Status. The neighborhood indicators included 1) poverty rates at the census tract level, 2) perceived neighborhood social cohesion, and 3) perceived neighborhood disorder. Three-level growth curve models were separately estimated for each neighborhood indicator’s effect as well as its interaction with SPA on the 8-year cognitive function trajectories. Findings showed that higher poverty rates, more disorder, and less cohesion were associated with lower initial levels of cognitive function but slower rates of cognitive decline. SPA partially moderated the linkage between neighborhood adversity and the level of cognitive function. More positive SPA was associated with reduced negative effects of living in neighborhoods with higher poverty rates and more physical disorder. These findings highlight the intersection of an individual-level psychological factor and a contextual-level factor in shaping late-life cognition.
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Affiliation(s)
- Eunyoung Choi
- School of Global Public Health, New York University, Los Angeles, California, United States
| | - Elizabeth Zelinski
- University of Southern California, Los Angeles, California, United States
| | - Jennifer Ailshire
- University of Southern California, Los Angeles, California, United States
| | - Yuri Jang
- University of Southern California, Los Angeles, California, United States
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25
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Noh H, Choi E, Lee L, Lee H. SOCIAL DETERMINANTS OF HEALTH AND WILLINGNESS FOR END-OF-LIFE DISCUSSION AMONG KOREAN AMERICAN IMMIGRANTS. Innov Aging 2022. [PMCID: PMC9770286 DOI: 10.1093/geroni/igac059.769] [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: 12/24/2022] Open
Abstract
This study aimed to examine social determinants of health (SDH) associated with Korean American (KA) immigrants’ willingness for end-of-life discussions with family and doctors. A self-administered, cross-sectional survey was conducted with 259 KAs in Alabama. Demographic, health, acculturation, and SDH information were collected. Binary logistic regression analyses were conducted to examine associations between SDH and willingness for end-of-life discussion. Most participants were willing to discuss with family (94%) and doctors (82%). Those aware of hospice care were more likely to have willingness for discussion with family and doctors. Those who could not see a doctor because of cost and who had higher threats to interpersonal safety were less likely to have willingness for discussion with family. Those with more chronic conditions and higher social isolation were less likely to have willingness for discussion with doctors. Interventions aimed to promote KAs' end-of-life discussions should consider the SDH identified in this study.
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Affiliation(s)
- Hyunjin Noh
- The University of Alabama School of Social Work , Tuscaloosa, Alabama, United States
| | - Eunyoung Choi
- School of Global Public Health, New York University, Los Angeles, California, United States
| | - Lewis Lee
- School of Social Work, The University of Alabama, Tuscalossa, Alabama, United States
| | - Hee Lee
- University of Alabama, Birmingham, Alabama, United States
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Shim DW, Choi E, Park YC, Shin SC, Lee JW, Sung SY. Comparing bilateral feet computed tomography scans can improve surgical decision making for subtle Lisfranc injury. Arch Orthop Trauma Surg 2022; 142:3705-3714. [PMID: 34599354 DOI: 10.1007/s00402-021-04182-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Subtle Lisfranc injuries (SLIs) are challenging to diagnose. Although weightbearing (WB) radiographs have been suggested to identify SLIs, approximately 20% are missed on initial radiographic assessment. Computed tomography (CT) has been suggested as an alternative, but has not provided any diagnostic guideline. Therefore we compared measurement techniques on radiographs and bilateral foot CT scans for the efficiency of diagnosis and making surgical decisions for SLI. METHODS We retrospectively investigated patients diagnosed with SLIs between January 2014 and January 2020. Distances between both medial cuneiform and second metatarsal base (C1M2), and the first and second metatarsal bases (M1M2), were measured on bilateral WB radiographs. Bilateral foot CT scans were taken, and the distances between C1M2 were checked on the axial and three points of the coronal plane (top, middle, and base). The surgical indication was > 1 mm of diastasis on CT scan. Clinical outcomes were evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) score at final follow-up. Intraobserver and interobserver agreements were assessed. RESULTS Thirty patients with SLIs were reviewed. Twenty-four patients underwent surgical fixation (Group A) and six patients were treated conservatively (Group B). The side-to-side difference (STSD) of C1M2 and M1M2 distances greater than 1 mm showed 91.7% and 54.2% sensitivity, and 66.7% and 16.7% specificity, respectively. Investigating STSDs of all points on CT scans were informative to discriminate both groups (P ≤ 0.038). Clinical outcomes showed no significant difference between the groups (P = 0.631). Intraclass and interclass correlation coefficient values showed good to very good reliability, except for STSD of WB M1M2 distance and the coronal top plane. CONCLUSION Investigating bilateral foot CT scans was significantly efficient and reliable for the diagnosis and treatment plan for SLI. On radiographs, STSD of WB C1M2 distance was more sensitive than STSD of WB M1M2 distance. LEVEL OF EVIDENCE Case control study; III.
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Affiliation(s)
- Dong Woo Shim
- Department of Orthopedic Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, South Korea
| | - Eunyoung Choi
- Student, Catholic Kwandong University College of Medicine, 7, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, South Korea
| | - Young-Chang Park
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 211 Eonju-ro, Gangnam-gu, Seoul, 06273, South Korea
| | - Sung Chul Shin
- Department of Orthopedic Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, South Korea
| | - Jin Woo Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Seung-Yong Sung
- Department of Orthopedic Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, South Korea.
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Abstract
Gastric cancer has one of the highest incidence rates and is one of the leading causes of cancer-related mortality worldwide. Sequential steps within the carcinogenic process are observed in gastric cancer as well as in pancreatic cancer and colorectal cancer. Kirsten rat sarcoma viral oncogene homolog (KRAS) is the most well-known oncogene and can be constitutively activated by somatic mutations in the gene locus. For over 2 decades, the functions of Kras activation in gastrointestinal (GI) cancers have been studied to elucidate its oncogenic roles during the carcinogenic process. Different approaches have been utilized to generate distinct in vivo models of GI cancer, and a number of mouse models have been established using Kras-inducible systems. In this review, we summarize the genetically engineered mouse models in which Kras is activated with cell-type and/or tissue-type specificity that are utilized for studying carcinogenic processes in gastric cancer as well as pancreatic cancer and colorectal cancer. We also provide a brief description of histological phenotypes and characteristics of those mouse models and the current limitations in the gastric cancer field to be investigated further.
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Affiliation(s)
- Yoonkyung Won
- grid.412807.80000 0004 1936 9916Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232 USA ,grid.412807.80000 0004 1936 9916Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN 37232 USA
| | - Eunyoung Choi
- grid.412807.80000 0004 1936 9916Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232 USA ,grid.412807.80000 0004 1936 9916Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN 37232 USA ,grid.152326.10000 0001 2264 7217Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232 USA
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Lee HY, Wang K, Johnson K, Kubanga K, Han A, Choi E. Does the Use of Social Media Affect Online Health Information-Seeking Behaviors among Underserved African Americans in Rural Alabama? J Health Care Poor Underserved 2022; 33:1949-1964. [DOI: 10.1353/hpu.2022.0147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lee HY, Noh H, Choi E, Lee LH. Social determinants of willingness to discuss end-of-life care with family and doctors among Korean American immigrants: Findings from a cross-sectional survey in Alabama. Health Soc Care Community 2022; 30:e6056-e6066. [PMID: 36164279 DOI: 10.1111/hsc.14043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 08/22/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Prior research reported lower engagement in end-of-life discussions and planning among Korean American (KA) immigrants; however, there is a dearth of research investigating factors associated with their willingness to discuss their end-of-life care wishes. This study aimed to examine the willingness to have end-of-life discussions with family and doctors among KA immigrants and social determinants of health (SDH) associated with willingness. A self-administered, cross-sectional survey was conducted with a convenience sample of 259 KA immigrants recruited from two counties in Alabama. Demographic, health, acculturation and SDH information were collected. Logistic regression analyses were conducted to examine associations between SDH and willingness for end-of-life discussion with family and doctors, respectively. The majority of the sample was willing to discuss end-of-life care with family (94%) and doctors (82%). Those with hospice awareness were more likely to have willingness for discussion with family (OR = 27.70, p < 0.001) and doctors (OR = 5.01, p < 0.001). Those who could not see a doctor because of cost (OR = 0.03, p < 0.01) and who had higher threats to interpersonal safety (OR = 0.74, p < 0.05) were less likely to have willingness for discussion with family. Those who had more chronic conditions (OR = 0.60, p < 0.05) and higher levels of social isolation (OR = 0.77, p < 0.05) were less likely to have willingness for discussion with doctors. The SDH identified in this study should be considered in developing interventions to promote end-of-life discussions in the KA immigrant community. Future research should investigate the associations explored in this study in a larger and more representative sample.
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Affiliation(s)
- Hee Y Lee
- Research/Endowed Academic Chair on Social Work and Health, School of Social Work, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Hyunjin Noh
- School of Social Work, The University of Alabama, Tuscaloosa, Alabama, USA
| | - Eunyoung Choi
- School of Global Public Health, New York University, New York, New York City, USA
| | - Lewis H Lee
- School of Social Work, The University of Alabama, Tuscaloosa, Alabama, USA
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Bae N, Lee S, Choi E, Ahn H, Ahn H, Kwon S, Han K, Oh S, Lip G. Impact of mental disease on the risk of atrial fibrillation in patients with diabetes mellitus: a nationwide population-based study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Diabetes mellitus (DM) is known to increase the risk of mental disorders, which increases the health care burden in these patients. Also, DM is one of the risk factors leading to atrial fibrillation (AF), and the presence of concomitant AF and DM adds to the increased risks of stroke and death. It is uncertain whether mental disease is an independent risk factor of incident AF in patients with DM.
Purpose
To investigate whether diabetic patients with mental disease have an increased risk of AF.
Methods
Using the Korea National Health Insurance Service database, we enrolled 2,512,690 patients diagnosed with DM without AF between 2009 and 2021. Newly diagnosed AF was identified during the follow-up period. We compared the risk of AF between patients with mental disease and those without.
Results
Among the total population, 828,929 (32.99%; mean age 61.58±11.28; 56.71% female) patients were diagnosed with mental diseases (Figure 1). Anxiety (564,786 patients, 68.13%) was the most common mental disease, while depression was the second most common (313,773 patients, 37.85%). Diabetic patients with mental diseases had a higher percentage of women, hypertension, dyslipidemia, chronic kidney failure, congestive heart failure, obstructive sleep apnea, and thyroid disease. During a median 7.0 years (IQR 5.93–8.07) follow-up, 34,523 were diagnosed new-onset AF (4.66 per 1,000 person-year). In multivariate analysis, diabetic patients with mental disorders showed a higher risk of new-onset AF (HR 1.19; 95% CI 1.17–1.21; p-value <0.0001) (Figure 2). Among mental diseases, depression, insomnia, and anxiety were associated with increased risks of new-onset AF (HR 1.15; 95% CI 1.12–1.17; HR 1.15; 95% CI 1.13–1.18; and HR 1.19; 95% CI, 1.67–1.21; all p-value <0.0001, respectively), whereas bipolar disorder and schizophrenia showed non-statistically significant trends (due to small numbers). Subgroup analyses showed that younger age had significant interactions with depression, insomnia, and anxiety.
Conclusion
Mental diseases, especially depression, insomnia, and anxiety, showed an increased risk of AF in patients with DM. Awareness and prompt diagnosis and management of AF would be necessary for these high-risk populations at risk of incident AF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Bae
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - E Choi
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Kwon
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - K Han
- Soongsil University, Department of Statistics and Actuarial Science , Seoul , Korea (Republic of)
| | - S Oh
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - G Lip
- Liverpool Heart and Chest Hospital, Liverpool Centre for Cardiovascular Science, University of Liverpool , Liverpool , United Kingdom
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Shin SY, Jung M, Byeon K, Kang K, Park Y, Hwang Y, Lee S, Jin E, Roh S, Kim J, Ahn J, Lee S, Choi E, Ahn M, Lip G. External validation of the biomarker based ABCD score in atrial fibrillation patients with a non gender CHA2DS2 VASc score 0 to 1, A Korean multicenter retrospective cohort. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Patients with low to intermediate risk atrial fibrillation (AF), defined as non-gender CHA2DS2-VASc score of 0–1, are still at risk of stroke. This study verified the usefulness of ABCD score (Age [≥60 years], B-type natriuretic peptide [BNP] or N-terminal pro-BNP [≥300 pg/ml], Creatinine clearance [<50 ml/min/1.73 m2], and Dimension of the left atrium [≥45 mm]) for stroke risk stratification in non-gender CHA2DS2-VASc score 0–1.
Methods
This multi-center cohort study retrospectively analyzed AF patients with non-gender CHA2DS2-VASc score 0–1. The primary endpoint was the incidence of stroke with or without anti-thrombotic treatment (ATT). An ABCD score was also validated.
Results
Overall, 2694 patients (56.3±9.5 years; female, 726 [26.9%]) were followed-up for 4.0±2.8 years. The overall stroke rate was 0.84/100 person-years (P-Y), stratified as follows: 0.46/100P-Y for an ABCD score 0; 1.02/100P-Y for an ABCD score≥1. The ABCD score was superior to the non-gender CHA2DS2-VASc score in stroke risk stratification (C-index=0.618, P=0.015; net reclassification improvement=0.576, P=0.040; integrated differential improvement=0.033, P=0.066). ATT was prescribed in 2353 patients (86.5%), and the stroke rate was significantly lower in patients receiving non-vitamin K antagonist oral anticoagulant (NOAC) therapy and an ABCD score≥1 than in those without ATT (0.44/100P-Y versus 1.55/100 P-Y; hazard ratio=0.26, 95% confidence interval 0.11–0.63, P=0.003).
Conclusion
The biomarker-based ABCD score demonstrated improved stroke risk stratification in AF patients with non-gender CHA2DS2-VASc score 0–1. Furthermore, NOAC with an ABCD score≥1 was associated with significantly lower stroke rate in AF patients with a non-gender CHA2DS2-VASc score 0–1.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Disease Control and Prevention Agency
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Affiliation(s)
- S Y Shin
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - M Jung
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - K Byeon
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - K Kang
- Chung-Ang University Hospital , Seoul , Korea (Republic of)
| | - Y Park
- Gachon University Gil Medical Center , Incheon , Korea (Republic of)
| | - Y Hwang
- St. Vincent's Hospital , Suwon , Korea (Democratic People's Republic of)
| | - S Lee
- Kangbuk Samsung Hospital , Seoul , Korea (Republic of)
| | - E Jin
- Kyunghee University , Seoul , Korea (Republic of)
| | - S Roh
- Korea University Guro Hospital , Seoul , Korea (Democratic People's Republic of)
| | - J Kim
- Korea University Ansan Hospital, Cardiology , Ansan-Si , Korea (Republic of)
| | - J Ahn
- Pusan National University Hospital , Pusan , Korea (Republic of)
| | - S Lee
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - E Choi
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - M Ahn
- Wonju Severance Christian Hospital , Wonju , Korea (Republic of)
| | - G Lip
- University of Liverpool , Liverpool , United Kingdom
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Min J, Zhang C, Bliton RJ, Caldwell B, Caplan L, Presentation KS, Park DJ, Kong SH, Lee HS, Washington MK, Kim WH, Lau KS, Magness ST, Lee HJ, Yang HK, Goldenring JR, Choi E. Dysplastic Stem Cell Plasticity Functions as a Driving Force for Neoplastic Transformation of Precancerous Gastric Mucosa. Gastroenterology 2022; 163:875-890. [PMID: 35700772 PMCID: PMC9509466 DOI: 10.1053/j.gastro.2022.06.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 05/31/2022] [Accepted: 06/02/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND & AIMS Dysplasia carries a high risk of cancer development; however, the cellular mechanisms for dysplasia evolution to cancer are obscure. We have previously identified 2 putative dysplastic stem cell (DSC) populations, CD44v6neg/CD133+/CD166+ (double positive [DP]) and CD44v6+/CD133+/CD166+ (triple positive [TP]), which may contribute to cellular heterogeneity of gastric dysplasia. Here, we investigated functional roles and cell plasticity of noncancerous Trop2+/CD133+/CD166+ DSCs initially developed in the transition from precancerous metaplasia to dysplasia in the stomach. METHODS Dysplastic organoids established from active Kras-induced mouse stomachs were used for transcriptome analysis, in vitro differentiation, and in vivo tumorigenicity assessments of DSCs. Cell heterogeneity and genetic alterations during clonal evolution of DSCs were examined by next-generation sequencing. Tissue microarrays were used to identify DSCs in human dysplasia. We additionally evaluated the effect of casein kinase 1 alpha (CK1α) regulation on the DSC activities using both mouse and human dysplastic organoids. RESULTS We identified a high similarity of molecular profiles between DP- and TP-DSCs, but more dynamic activities of DP-DSCs in differentiation and survival for maintaining dysplastic cell lineages through Wnt ligand-independent CK1α/β-catenin signaling. Xenograft studies demonstrated that the DP-DSCs clonally evolve toward multiple types of gastric adenocarcinomas and promote cancer cell heterogeneity by acquiring additional genetic mutations and recruiting the tumor microenvironment. Last, growth and survival of both mouse and human dysplastic organoids were controlled by targeting CK1α. CONCLUSIONS These findings indicate that the DSCs are de novo gastric cancer-initiating cells responsible for neoplastic transformation and a promising target for intervention in early induction of gastric cancer.
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Affiliation(s)
- Jimin Min
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Changqing Zhang
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - R Jarrett Bliton
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, Raleigh, North Carolina; Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Brianna Caldwell
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Leah Caplan
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Kimberly S Presentation
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Do-Joong Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Seong-Ho Kong
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hye Seung Lee
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea; Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - M Kay Washington
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Woo-Ho Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea; Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Ken S Lau
- Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Scott T Magness
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina at Chapel Hill, Raleigh, North Carolina; Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Hyuk-Joon Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Han-Kwang Yang
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - James R Goldenring
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee; Nashville VA Medical Center, Nashville, Tennessee
| | - Eunyoung Choi
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee; Epithelial Biology Center, Vanderbilt University School of Medicine, Nashville, Tennessee; Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee.
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Park J, Cho S, Lee K, Choi E, Jung W, Kim S, Park G, Song S, Kang C, Ma M, Yoo D, Paeng K, Ock CY. 94P Performance validation of an artificial intelligence-powered programmed death-ligand 1 (PD-L1) combined positive score analyzer in urothelial cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Choi E, Hwang HY, Kwon E, Kim D, Koo T. Expanded targeting scope of LbCas12a variants allows editing of multiple oncogenic mutations. Molecular Therapy - Nucleic Acids 2022; 30:131-142. [PMID: 36250202 PMCID: PMC9535386 DOI: 10.1016/j.omtn.2022.09.005] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/15/2022] [Indexed: 11/26/2022]
Abstract
RNA-guided CRISPR-Cas12a endonucleases are promising tools for genome engineering. Here we demonstrate that LbCas12a variants derived from Lachnospiraceae bacterium show a broad PAM preference, recognizing certain non-canonical PAMs with high efficiency. Furthermore, we engineered LbABE8e to carry G532R and/or K595R mutations, altering its original PAM specificities; these variants exhibited superior base editing activity in human cells compared with wild-type LbABE8e at sites with non-canonical PAMs. Based on this finding, we utilized the most effective LbCas12a and LbABE8e variants to demonstrate multiplexed and mutant-allele-specific gene editing in oncogenes, made possible by the variant’s recognition of non-canonical PAMs. Importantly, LbCas12a-G532R/K595R and LbABE8e-G532R/K595R with optimized crRNA arrays targeted to triple oncogenic mutations inhibited colon cancer cell proliferation. Taken together, these results demonstrate the potential of engineered LbCas12a and LbABE8e as tools for targeting sites with alternative PAMs for genome engineering and therapeutic editing in cancer cells.
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Dubinskaya A, Heard J, Choi E, Cohen T, Anger J, Eilber K, Scott V. Female Sexual Dysfunction Resources: Women and Healthcare Providers Need More Options. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.05.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
OBJECTIVE Metaplasia arises from differentiated cell types in response to injury and is considered a precursor in many cancers. Heterogeneous cell lineages are present in the reparative metaplastic mucosa with response to injury, including foveolar cells, proliferating cells and spasmolytic polypeptide-expressing metaplasia (SPEM) cells, a key metaplastic cell population. Zymogen-secreting chief cells are long-lived cells in the stomach mucosa and have been considered the origin of SPEM cells; however, a conflicting paradigm has proposed isthmal progenitor cells as an origin for SPEM. DESIGN Gastric intrinsic factor (GIF) is a stomach tissue-specific gene and exhibits protein expression unique to mature mouse chief cells. We generated a novel chief cell-specific driver mouse allele, GIF-rtTA. GIF-GFP reporter mice were used to validate specificity of GIF-rtTA driver in chief cells. GIF-Cre-RnTnG mice were used to perform lineage tracing during homoeostasis and acute metaplasia development. L635 treatment was used to induce acute mucosal injury and coimmunofluorescence staining was performed for various gastric lineage markers. RESULTS We demonstrated that mature chief cells, rather than isthmal progenitor cells, serve as the predominant origin of SPEM cells during the metaplastic process after acute mucosal injury. Furthermore, we observed long-term label-retaining chief cells at 1 year after the GFP labelling in chief cells. However, only a very small subset of the long-term label-retaining chief cells displayed the reprogramming ability in homoeostasis. In contrast, we identified chief cell-originating SPEM cells as contributing to lineages within foveolar cell hyperplasia in response to the acute mucosal injury. CONCLUSION Our study provides pivotal evidence for cell plasticity and lineage contributions from differentiated gastric chief cells during acute metaplasia development.
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Affiliation(s)
- Brianna Caldwell
- Section of Surgical Sciences and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Anne R Meyer
- Section of Surgical Sciences and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jared A Weis
- Department of Biomedical Engineering, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Amy C Engevik
- Section of Surgical Sciences and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Eunyoung Choi
- Section of Surgical Sciences and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
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Lee HY, Wang K, Choi E, Gajos JM, Won CR. Opioid Literacy Among African Americans Living in Rural Alabama: Findings From a Social Determinants of Health (SDH) Framework. Journal of Drug Issues 2022. [DOI: 10.1177/00220426221093610] [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: 11/16/2022]
Abstract
Limited research examining opioid literacy among African Americans (AAs) have been conducted. The current study examined the association between opioid literacy levels among AAs in rural Alabama using the social determinants of health framework. Three subscales in the Brief Opioid Overdose Knowledge questionnaire were used to measure opioid literacy. Among a sample of 253, limited opioid literacy was found. Social contact was found to be significantly associated with overall opioid literacy (B = .36, p < .05) and opioid general knowledge subscale (B = .14, p < .05). For the subscale of opioid overdose response knowledge, health insurance (B =−.59, p = .06) and social contact (B = .13, p = .07) emerged as marginally significant. The findings suggest that educational interventions are needed to increase opioid literacy among rural AAs, especially among those with limited social contact.
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Affiliation(s)
- Hee Yun Lee
- School of Social Work, The University of Alabama, Tuscaloosa, AL, USA
| | - Kun Wang
- School of Social Work, The University of Alabama, Tuscaloosa, AL, USA
| | - Eunyoung Choi
- Leonard Davis School of Gerontology, University of Southern California Los Angeles, Los Angeles, CA, USA
| | - Jamie M. Gajos
- Department of Human Development and Family Studies, The University of Alabama, Tuscaloosa, AL, USA
| | - Cho Rong Won
- School of Social Work, The University of Alabama, Tuscaloosa, AL, USA
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Lim J, Choi E, Kim M, Lee M, Chen D, Green MA, Seidel J, Kim C, Park J, Hao X, Yun JS. Revealing the Dynamics of the Thermal Reaction between Copper and Mixed Halide Perovskite Solar Cells. ACS Appl Mater Interfaces 2022; 14:20866-20874. [PMID: 35499459 DOI: 10.1021/acsami.2c01061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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
Copper (Cu) is present not only in the electrode for inverted-structure halide perovskite solar cells (PSCs) but also in transport layers such as copper iodide (CuI), copper thiocyanate (CuSCN), and copper phthalocyanine (CuPc) alternatives to spiro-OMeTAD due to their improved thermal stability. While Cu or Cu-incorporated materials have been effectively utilized in halide perovskites, there is a lack of thorough investigation on the direct reaction between Cu and a perovskite under thermal stress. In this study, we investigated the thermal reaction between Cu and a perovskite as well as the degradation mechanism by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Kelvin probe force microscopy (KPFM). The results show that high temperatures of 100 °C induce Cu to be incorporated into the perovskite lattice by forming "Cu-rich yet organic A-site-poor" perovskites, (CuxA1-x)PbX3, near the grain boundaries, which result in device performance degradation.
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Affiliation(s)
- Jihoo Lim
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Moonyong Kim
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Minwoo Lee
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Daniel Chen
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Sundrive Solar, Kirrawee, NSW 2232, Australia
| | - Martin A Green
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jan Seidel
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Changheon Kim
- Solar Energy R&D Department, Green Energy Institute, Mokpo, Chonnam 58656, Republic of Korea
| | - Jongsung Park
- Department of Energy Engineering, Gyeongsang National University, Jinju 52849, Republic of Korea
| | - Xiaojing Hao
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jae Sung Yun
- Australian Centre for Advanced Photovoltaics (ACAP), School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Department of Electrical and Electronic Engineering, Advanced Technology Institute (ATI), University of Surrey, Guildford GU2 7XH, United Kingdom
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Lee JH, Kim S, Han S, Min J, Caldwell B, Bamford AD, Rocha ASB, Park J, Lee S, Wu SHS, Lee H, Fink J, Pilat-Carotta S, Kim J, Josserand M, Szep-Bakonyi R, An Y, Ju YS, Philpott A, Simons BD, Stange DE, Choi E, Koo BK, Kim JK. p57 Kip2 imposes the reserve stem cell state of gastric chief cells. Cell Stem Cell 2022; 29:826-839.e9. [PMID: 35523142 PMCID: PMC9097776 DOI: 10.1016/j.stem.2022.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 02/17/2022] [Accepted: 04/01/2022] [Indexed: 11/19/2022]
Abstract
Adult stem cells constantly react to local changes to ensure tissue homeostasis. In the main body of the stomach, chief cells produce digestive enzymes; however, upon injury, they undergo rapid proliferation for prompt tissue regeneration. Here, we identified p57Kip2 (p57) as a molecular switch for the reserve stem cell state of chief cells in mice. During homeostasis, p57 is constantly expressed in chief cells but rapidly diminishes after injury, followed by robust proliferation. Both single-cell RNA sequencing and dox-induced lineage tracing confirmed the sequential loss of p57 and activation of proliferation within the chief cell lineage. In corpus organoids, p57 overexpression induced a long-term reserve stem cell state, accompanied by altered niche requirements and a mature chief cell/secretory phenotype. Following the constitutive expression of p57 in vivo, chief cells showed an impaired injury response. Thus, p57 is a gatekeeper that imposes the reserve stem cell state of chief cells in homeostasis.
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Affiliation(s)
- Ji-Hyun Lee
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Somi Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea; Department of New Biology, DGIST, Daegu 42988, Republic of Korea
| | - Seungmin Han
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK; Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK
| | - Jimin Min
- Department of Surgery and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA; Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Brianna Caldwell
- Department of Surgery and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA; Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Aileen-Diane Bamford
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Andreia Sofia Batista Rocha
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - JinYoung Park
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Sieun Lee
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Szu-Hsien Sam Wu
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Heetak Lee
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Juergen Fink
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK
| | - Sandra Pilat-Carotta
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Jihoon Kim
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria; Department of Medical and Biological Sciences, The Catholic University of Korea, Bucheon, Gyeonggi-do, Republic of Korea
| | - Manon Josserand
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK
| | - Réka Szep-Bakonyi
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria
| | - Yohan An
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Young Seok Ju
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Anna Philpott
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK; Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge CB2 0XZ, UK
| | - Benjamin D Simons
- Wellcome Trust/Medical Research Council Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK; Wellcome Trust/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge CB2 1QN, UK; Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UK
| | - Daniel E Stange
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital Carl Gustav Carus, Medical Faculty, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Eunyoung Choi
- Department of Surgery and Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, TN, USA; Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN, USA.
| | - Bon-Kyoung Koo
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Dr. Bohr-Gasse 3, Vienna, 1030, Austria; Center for Genome Engineering, Institute for Basic Science, 55, Expo-ro, Yuseong-gu, Daejeon 34126, Republic of Korea.
| | - Jong Kyoung Kim
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea; Department of New Biology, DGIST, Daegu 42988, Republic of Korea.
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Choi E, Xu P, El-Khatib F, Kavoussi P, Yafi F. Subcutaneous testosterone enanthate-autoinjector: Assessment of its post-market safety and efficacy profiles. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Huynh L, Huang E, Choi E, Yafi F. Is immediate preoperative blood glucose or hemoglobin A1c a risk factor for infection following penile prosthesis placement? A systematic review of literature. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Choi E, Barnard J, Horns J, Paudel N, Das R, Yafi F, Hotaling J. Acne, folliculitis and post-operative infection rates of penile prosthetic implants. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Osman M, El-Khatib F, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi F. Differences in the gut microbiome composition between men with Peyronie's Disease and a matched cohort: A pilot study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang D, Barnard J, Choi E, Furr J, Lentz A, van Renterghem K, Selph P, Yafi F. Immediate salvage with inflatable penile prosthesis in an infected field: A contemporary multi-institutional cohort. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ghasemi M, Zhang Y, Zhou C, Tan C, Choi E, Yun JS, Du A, Yun JH, Jia B, Wen X. Controllable Acceleration and Deceleration of Charge Carrier Transport in Metal-Halide Perovskite Single-Crystal by Cs-Cation Induced Bandgap Engineering. Small 2022; 18:e2107680. [PMID: 35481722 DOI: 10.1002/smll.202107680] [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: 01/12/2022] [Revised: 03/30/2022] [Indexed: 06/14/2023]
Abstract
Charge carrier transport in materials is of essential importance for photovoltaic and photonic applications. Here, the authors demonstrate a controllable acceleration or deceleration of charge carrier transport in specially structured metal-alloy perovskite (MACs)PbI3 (MA= CH3 NH3 ) single-crystals with a gradient composition of CsPbI3 /(MA1- x Csx )PbI3 /MAPbI3 . Depending on the Cs-cation distribution in the structure and therefore the energy band alignment, two different effects are demonstrated: i) significant acceleration of electron transport across the depth driven by the gradient band alignment and suppression of electron-hole recombination, benefiting for photovoltaic and detector applications; and ii) decelerated electron transport and thus improved radiative carrier recombination and emission efficiency, highly beneficial for light and display applications. At the same time, the top Cs-layer results in hole localization in the top layer and surface passivation. This controllable acceleration and deceleration of electron transport is critical for various applications in which efficient electron-hole separation and suppressed nonradiative electron-hole recombination is demanded.
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Affiliation(s)
- Mehri Ghasemi
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Yurou Zhang
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Chunhua Zhou
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Cheng Tan
- Centre for Materials Science, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4000, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering (SPREE), University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jae Sung Yun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering (SPREE), University of New South Wales, Sydney, NSW, 2052, Australia
| | - Aijun Du
- Centre for Materials Science, School of Chemistry and Physics, Faculty of Science, Queensland University of Technology, 2 George St, Brisbane City, QLD, 4000, Australia
| | - Jung-Ho Yun
- Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 17104, Republic of Korea
- Nanomaterials Centre, School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Baohua Jia
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
| | - Xiaoming Wen
- Centre for Translational Atomaterials, Swinburne University of Technology, Hawthorn, VIC, 3122, Australia
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Osman M, El-Khatib F, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi F. Differences in the gut microbiome composition between men with erectile dysfunction and a matched cohort: A pilot study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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47
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Choi E, Xu P, Loeb C, El-Khatib F, Yafi F, Kavoussi P. Intramuscular testosterone cypionate vs subcutaneous testosterone enanthate: Comparing the outcomes in hypogonadal men. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kim D, Lim J, Lee S, Soufiani AM, Choi E, Ievlev AV, Borodinov N, Liu Y, Ovchinnikova OS, Ahmadi M, Lim S, Sharma P, Seidel J, Noh JH, Yun JS. Correction to Microstructural Evaluation of Phase Instability in Large Bandgap Metal Halide Perovskites. ACS Nano 2022; 16:6939. [PMID: 35286057 DOI: 10.1021/acsnano.2c02306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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49
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Jiang D, Barnard J, Choi E, Furr J, Lentz A, van Renterghem K, Selph P, Yafi FA. Immediate Salvage with Inflatable Penile Prosthesis in an Infected Field: A Contemporary Multi-institutional Cohort. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Osman MM, El-Khatib FM, Dianatnejad S, Nguyen J, Choi E, Towe M, Yafi FA. Differences in the Gut Microbiome Composition Between Men with Erectile Dysfunction and A Matched Cohort: A Pilot Study. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.01.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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