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Yan C, Li P, Yang M, Li Y, Li J, Zhang H, Liu C. Entropy Analysis of Heart Rate Variability in Different Sleep Stages. Entropy 2022; 24:e24030379. [PMID: 35327890 PMCID: PMC8947316 DOI: 10.3390/e24030379] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/01/2022] [Accepted: 03/05/2022] [Indexed: 01/02/2023]
Abstract
How the complexity or irregularity of heart rate variability (HRV) changes across different sleep stages and the importance of these features in sleep staging are not fully understood. This study aimed to investigate the complexity or irregularity of the RR interval time series in different sleep stages and explore their values in sleep staging. We performed approximate entropy (ApEn), sample entropy (SampEn), fuzzy entropy (FuzzyEn), distribution entropy (DistEn), conditional entropy (CE), and permutation entropy (PermEn) analyses on RR interval time series extracted from epochs that were constructed based on two methods: (1) 270-s epoch length and (2) 300-s epoch length. To test whether adding the entropy measures can improve the accuracy of sleep staging using linear HRV indices, XGBoost was used to examine the abilities to differentiate among: (i) 5 classes [Wake (W), non-rapid-eye-movement (NREM), which can be divide into 3 sub-stages: stage N1, stage N2, and stage N3, and rapid-eye-movement (REM)]; (ii) 4 classes [W, light sleep (combined N1 and N2), deep sleep (N3), and REM]; and (iii) 3 classes: (W, NREM, and REM). SampEn, FuzzyEn, and CE significantly increased from W to N3 and decreased in REM. DistEn increased from W to N1, decreased in N2, and further decreased in N3; it increased in REM. The average accuracy of the three tasks using linear and entropy features were 42.1%, 59.1%, and 60.8%, respectively, based on 270-s epoch length; all were significantly lower than the performance based on 300-s epoch length (i.e., 54.3%, 63.1%, and 67.5%, respectively). Adding entropy measures to the XGBoost model of linear parameters did not significantly improve the classification performance. However, entropy measures, especially PermEn, DistEn, and FuzzyEn, demonstrated greater importance than most of the linear parameters in the XGBoost model.300-s270-s.
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Affiliation(s)
- Chang Yan
- School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China; (M.Y.); (Y.L.); (J.L.)
- Correspondence: (C.Y.); (C.L.)
| | - Peng Li
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA;
| | - Meicheng Yang
- School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China; (M.Y.); (Y.L.); (J.L.)
| | - Yang Li
- School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China; (M.Y.); (Y.L.); (J.L.)
| | - Jianqing Li
- School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China; (M.Y.); (Y.L.); (J.L.)
| | - Hongxing Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China;
| | - Chengyu Liu
- School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China; (M.Y.); (Y.L.); (J.L.)
- Correspondence: (C.Y.); (C.L.)
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Li J, Huang J, Cong J, Mai Y, Su Z, Liang G, Wang A, He M, Yuan X, Sun H, Yan C, Sun K, Ekins-Daukes NJ, Green MA, Hao X. Large-Grain Spanning Monolayer Cu 2 ZnSnSe 4 Thin-Film Solar Cells Grown from Metal Precursor. Small 2022; 18:e2105044. [PMID: 34914176 DOI: 10.1002/smll.202105044] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/25/2021] [Indexed: 06/14/2023]
Abstract
The persistent double layer structure whereby two layers with different properties form at the front and rear of absorbers is a critical challenge in the field of kesterite thin-film solar cells, which imposes additional nonradiative recombination in the quasi-neutral region and potential limitation to the transport of hole carriers. Herein, an effective model for growing monolayer CZTSe thin-films based on metal precursors with large grains spanning the whole film is developed. Voids and fine grain layer are avoided successfully by suppressing the formation of a Sn-rich liquid metal phase near Mo back contact during alloying, while grain coarsening is greatly promoted by enhancing mass transfer during grain growth. The desired morphology exhibits several encouraging features, including significantly reduced recombination in the quasi-neutral region that contributes to the large increase of short-circuit current, and a quasi-Ohmic back contact which is a prerequisite for high fill factor. Though this growth mode may introduce more interfacial defects which require further modification, the strategies demonstrated remove a primary obstacle toward higher efficiency kesterite solar cells, and can be applicable to morphology control with other emerging chalcogenide thin films.
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Affiliation(s)
- Jianjun Li
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jialiang Huang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Jialin Cong
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Yaohua Mai
- Institute of New Energy Technology, College of Information Science and Technology, Jinan University, Guangzhou, 510632, China
| | - Zhenghua Su
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, Shenzhen University, Shenzhen, 518060, China
| | - Guangxing Liang
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, Shenzhen University, Shenzhen, 518060, China
| | - Ao Wang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Mingrui He
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xiaojie Yuan
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Heng Sun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Chang Yan
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Kaiwen Sun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Nicholas J Ekins-Daukes
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Martin A Green
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Xiaojing Hao
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
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Wang S, Yan C, Zhang X, Shi D, Chi L, Luo G, Jun Deng. Correction: Antimicrobial peptide modification enhances the gene delivery and bactericidal efficiency of gold nanoparticles for accelerating diabetic wound healing. Biomater Sci 2022; 10:1393-1395. [PMID: 35179546 DOI: 10.1039/d2bm90013k] [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: 11/21/2022]
Abstract
Correction for 'Antimicrobial peptide modification enhances the gene delivery and bactericidal efficiency of gold nanoparticles for accelerating diabetic wound healing' by Song Wang et al., Biomater. Sci., 2018, 6, 2757-2772, DOI: 10.1039/C8BM00807H.
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Affiliation(s)
- Song Wang
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Chang Yan
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Ximu Zhang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education & Stomatological Hospital of Chongqing Medical University, Chongqing 401174, China
| | - Dezhi Shi
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 40005, PR China
| | - Luxiang Chi
- Department of Cardiology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Gaoxing Luo
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Third Military Medical University (Army Medical University), Chongqing 400038, China.
| | - Jun Deng
- Institute of Burn Research, Southwest Hospital, State Key Lab of Trauma, Burn and Combined Injury, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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Li C, Yan C, Sun Q, Wang J, Yuan C, Mou Y, Shan S, Zhao X. Proteomic profiling of Arachis hypogaea in response to drought stress and overexpression of AhLEA2 improves drought tolerance. Plant Biol (Stuttg) 2022; 24:75-84. [PMID: 34694687 DOI: 10.1111/plb.13351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Drought is the main factor restricting peanut growth, but the molecular mechanism underlying peanut drought tolerance remains unclear. Herein, the seedling stage of drought-resistant peanut cultivar J11 was subjected to drought stress, and its proteomic profile was systematically analysed by isobaric tags for relative and absolute quantification (iTRAQ), the results of which were further complemented with our previous transcriptome results. A total of 4,018 proteins were identified by proteomic analysis, which revealed that the expression levels of 69 proteins were altered under drought stress. Among the differentially expressed proteins (DEPs), 50 were upregulated, and 19 were downregulated. The most enriched metabolic pathways for these DEPs were those involving phenylpropanoid biosynthesis, flavonoid biosynthesis, and plant hormone signal transduction. The proteomic data and previous transcriptome results revealed 44 groups of genes/proteins with the same expression trend, including a LEA (Late embryogenesis abundant) gene, AhLEA2. Our present study showed that overexpression of the AhLEA2 gene enhanced the drought resistance of transgenic Arabidopsis plants, and the activities of related antioxidant enzymes in the transgenic plants significantly changed. The AhLEA2 gene was found to be located in the cytoplasm and cell membrane by subcellular localization experiments. This work systematically analysed the differentially expressed proteins in peanut in response to drought stress, providing important candidates for further functional analysis of the stress response of peanut. Our results also indicated that AhLEA2 plays an important role in the peanut response to drought stress.
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Affiliation(s)
- C Li
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Q Sun
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - J Wang
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yuan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Y Mou
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - S Shan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - X Zhao
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
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Shen DS, Yan C, Chen KH, Li L, Qu S, Zhu XD. A Nomogram Based on Circulating CD4 + T Lymphocytes and Lactate Dehydrogenase to Predict Distant Metastasis in Patients with Nasopharyngeal Carcinoma. J Inflamm Res 2021; 14:6707-6718. [PMID: 34916820 PMCID: PMC8668247 DOI: 10.2147/jir.s341897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/24/2021] [Indexed: 12/24/2022] Open
Abstract
Purpose Distant metastasis is the main pattern of treatment failure in nasopharyngeal carcinoma (NPC) in the era of intensity-modulated radiotherapy (IMRT). We aimed to establish and validate a prognostic nomogram to identify patients with a high risk of distant metastasis. Patients and Methods A total of 503 patients with nonmetastatic NPC were included in this retrospective study. We established a prognostic nomogram for distant metastasis-free survival (DMFS) based on the Cox proportional hazards model. The predictive discriminative ability and accuracy of the nomogram were assessed with the concordance index (C-index), receiver operating characteristic (ROC) curve, and calibration curve. The nomogram’s clinical utility was also evaluated using decision curve analysis (DCA) and Kaplan–Meier method. The predictive ability of the nomogram was validated in an independent cohort. Results The multivariate analysis showed that circulating CD4+ T lymphocytes, lactate dehydrogenase (LDH), serum ferritin (SF), and N stage were independent prognostic factors for DMFS. Then, we constructed the nomogram based on these factors. The C-indexes of the nomogram for distant metastasis were 0.763 (95% CI: 0.685–0.841) and 0.760 (95% CI: 0.643–0.877) in the training cohort and validation cohort, respectively, which was higher than the 8th TNM staging system (0.672 and 0.677). The calibration curve showed that the prediction results of the nomogram were in high agreement with the actual observation. The ROC curve indicated that the nomogram had a better predictive ability than TNM staging. The DCA also demonstrated that the nomogram was clinically beneficial. In addition, the patients were classified into two different risk groups (high-risk, low-risk) by the nomogram. Conclusion As a supplement to TNM staging, our nomogram could provide a more effective and accurate prognostic prediction of distant metastasis in NPC patients. It has the potential to guide the individualized treatment of patients to improve their survival.
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Affiliation(s)
- De-Song Shen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Chang Yan
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Kai-Hua Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Ling Li
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Song Qu
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Xiao-Dong Zhu
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China.,Department of Oncology, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, People's Republic of China
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Shen DS, Yan C, Liang Y, Chen KH, Zhu XD. Prognostic Significance of Circulating Lymphocyte Subsets Before Treatment in Patients with Nasopharyngeal Carcinoma. Cancer Manag Res 2021; 13:8109-8120. [PMID: 34737639 PMCID: PMC8558319 DOI: 10.2147/cmar.s334094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/16/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose We set out to explore the prognostic value of circulating lymphocyte subsets in patients with nasopharyngeal carcinoma (NPC) before treatment and to investigate changes in lymphocyte subsets resulting from chemoradiotherapy. Patients and Methods This retrospective study included 677 patients with non-metastatic NPC. The cutoff value of lymphocyte subsets was determined by the receiver operating characteristic curve (ROC), and the prognostic significance of lymphocyte subsets was evaluated by the Log rank test and Cox proportional hazards model. The endpoints were overall survival (OS), progression-free survival (PFS), locoregional relapse-free survival (LRFS) and distant metastasis-free survival (DMFS). Differences in lymphocyte subsets before and after chemoradiotherapy were analyzed by Wilcoxon signed rank test. Results NPC patients with high levels of CD19+ B cells (>9.55%) had better 5-year OS (90.4% VS 76.8%, P < 0.001), 5-year PFS (85.3% VS 71.6%, P < 0.001) and 5-year DMFS (94% VS 86.8%, P = 0.002) than patients with low levels of CD19+ B cells. Patients with high levels of CD4+ T cells (> 37.05%) had better 5-year PFS (83% VS 74.2%, P = 0.015) and better 5-year DMFS (95.8% VS 86.7%, P < 0.001) than those with low levels of CD4+ T cells. Multivariate analyses indicated that CD19+ B cell was an independent prognostic factor for OS, PFS and DMFS in NPC. And CD4+ T cell was an independent prognostic factor for PFS and DMFS. Within 1 month after chemoradiotherapy, the percentages of CD4+ T cells, CD19+ B cells, and the CD4/CD8 ratio decreased significantly, while the percentages of CD8+ T cells increased significantly. Conclusion NPC patients with low levels of CD19+ B cells or CD4+ T cells before treatment have a poor prognosis. In addition, chemoradiotherapy may reduce the body’s immune function in NPC patients.
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Affiliation(s)
- De-Song Shen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Chang Yan
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Yu Liang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Kai-Hua Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Xiao-Dong Zhu
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China.,Department of Oncology, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, People's Republic of China
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Yan C, Gajdos S, Ramalingam A, Fromm M, Suh J, Xia P. Comparing Collapsed Cone Convolution Algorithm With Acuros and Its Implication on NRG Clinical Trials. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Qian Z, Yan C, Sijiu Y, Junfeng H, Yangyang P, Zhanchun B. Immunity cells in the small intestinal mucosa of newborn yaks. Folia Morphol (Warsz) 2021; 81:91-100. [PMID: 34642930 DOI: 10.5603/fm.a2021.0102] [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: 06/16/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND This study aimed to characterize and evaluate the main markers of T lymphocytes, B lymphocytes, immunoglobulin (Ig) A and IgG plasmocytes, macrophages, and dendritic cells of the intestinal mucosa of newborn yaks. MATERIALS AND METHODS Ten newborn yaks (2-4 weeks old) were choosed. Immunohistochemistry and real-time quantitative polymerase chain reaction were used to analyze the immune cell distribution and specific markers at the mRNA expression level in the duodenum, jejunum, and ileum. RESULTS The results showed in the epithelium, CD3-positive T lymphocyte levels were higher than other immune cell levels (P<0.05). Additionally, in the lamina propria, the number of cells positive for CD3, CD68, and signal inhibitory regulatory protein alpha (SIRPα) were higher in the villi, while CD79α, IgA, and IgG cells were more common at the base of the crypt. Moreover, both in the epithelium and lamina propria, the number of CD3, CD68 and SIRPα were decreased from the duodenum to the ileum (P<0.05), additionally the number of CD79α, IgA and IgG positive cells were increased from the duodenum to the ileum of newborn yaks (P<0.05). Furthermore, the mRNA expression levels of CD3ε, CD68, and SIRPα increased from the duodenum to the ileum (P<0.05), while the mRNA expression levels of CD79α, IgA, and IgG decreased from the duodenum to the ileum. CONCLUSIONS Immunohistochemical characterization and expression levels of immune factors in the small intestinal mucosa of newborn yaks suggest that the intestinal mucosa is an important part of the natural barrier and provides useful references for immunity functions of newborn yak intestinal mucosa.
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Affiliation(s)
- Z Qian
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China.
| | - C Yan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Y Sijiu
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - H Junfeng
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - P Yangyang
- Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
| | - B Zhanchun
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, Gansu, China
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Zhao M, Yang F, Sang C, Yan C, Wang Z. BGL3 inhibits papillary thyroid carcinoma progression via regulating PTEN stability. J Endocrinol Invest 2021; 44:2165-2174. [PMID: 33543443 DOI: 10.1007/s40618-021-01519-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE BGL3, a novel long non-coding RNA (lncRNA) that plays a crucial role in several human malignancies. However, the clinical significance and biological function of BGL3 in papillary thyroid carcinoma (PTC) have not been explored. Herein, we aimed to investigate the role of BGL3 in human PTC. METHODS A total of 85 pairs of PTC and normal tissues were collected for clinicopathological analysis. Expression of BGL3 was determined by quantitative real-time polymerase chain reaction (qRT-PCR). The effects of BGL3 on PTC cells ware determined by CCK-8, colony formation, EdU and wound healing assays. The molecular mechanism underlying BGL3 was tested by ChIP, Co-IP, RNA pull-down and luciferase reporter assays. In vivo experiments were conducted using xenografts in nude mice. RESULTS BGL3 was significantly decreased in PTC tissues compared to adjacent normal thyroid tissues, and it was transcriptionally repressed by oncogene Myc. Low BGL3 is positively related to larger tumor size, lymph node metastasis, later TNM stage and poor prognosis. Overexpression of BGL3 inhibited PTC cell proliferation and migration in vitro, and reduced tumor size and lung metastasis nodules in vivo. BGL3 was mainly located in the cytoplasm, in which interacted with PTEN and recruited OTUD3, enhancing the de-ubiquitination effect of OTUD3 on PTEN, resulting in increasing PTEN protein stability and inactivating carcinogenic PI3K/AKT signaling. CONCLUSIONS Our data underscore the critical tumor-inhibiting role of BGL3 in PTC via post-translational regulation of PTEN protein stability, which may serve as a novel therapeutic target and prognostic biomarker in human PTC.
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Affiliation(s)
- M Zhao
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - F Yang
- Department of Orthopedics, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Sang
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - C Yan
- Department of General Surgery, Yanqing District Hospital, Beijing and Yanqing Hospital, Peking University Third Hospital, Beijing, People's Republic of China
| | - Z Wang
- Department of General Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China.
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Yan C, Wang M, Sun F, Cao L, Jia B, Xia Y. Macrophage M1/M2 ratio as a predictor of pleural thickening in patients with tuberculous pleurisy. Infect Dis Now 2021; 51:590-595. [PMID: 34581278 DOI: 10.1016/j.idnow.2020.11.013] [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: 11/17/2020] [Revised: 11/23/2020] [Accepted: 11/27/2020] [Indexed: 10/22/2022]
Abstract
We evaluated the association between macrophage polarization and the development of pleural thickening in patients with tuberculous pleurisy. Patients with tuberculous pleurisy admitted to our hospital between October 2018 and March 2019 were prospectively recruited. Pleural fluid samples were obtained before treatment for detection of adenosine deaminase (ADA) and macrophage phenotype (M1: CD14+ CD86+; M2: CD14+ CD163+). Peripheral blood samples were subjected to interferon gamma release assay (IGRA). All subjects were administered standard anti-tuberculosis regimen (2HREZ/4HR); high-resolution CT was performed to determine pleural thickening (thickness>2mm) after completion of treatment. Pleural effusion in patients with thickened pleura had significantly more M1 but fewer M2 macrophages, and higher ADA level, as compared to those with normal pleura (P<0.05). No significant between-group difference was observed with respect to IGRA. In receiver operating characteristic (ROC) curve analysis, the optimal cut-off level of M1/M2 ratio for predicting pleural thickening was 1.149 (area under the curve: 0.842; sensitivity: 88.6%; specificity: 69.2%; positive predictive value: 86.3%; negative predictive value: 81.7%). M1/M2 ratio in the pleural fluid is a promising marker for predicting the development of pleural thickening in patients with tuberculous pleurisy. Macrophage-mediated immune response may play an important role in the pathogenesis of tuberculous pleurisy.
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Affiliation(s)
- C Yan
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - M Wang
- Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - F Sun
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China.
| | - L Cao
- Department of Clinical Laboratory, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - B Jia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
| | - Y Xia
- Department of Respiratory Diseases, the First Affiliated Hospital of Xinjiang Medical University, 830054 Urumqi, Xinjiang, China
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Yan C, Shen DS, Chen XB, Su DK, Liang ZG, Chen KH, Li L, Liang X, Liao H, Zhu XD. CT-Based Radiomics Nomogram for Prediction of Progression-Free Survival in Locoregionally Advanced Nasopharyngeal Carcinoma. Cancer Manag Res 2021; 13:6911-6923. [PMID: 34512030 PMCID: PMC8423413 DOI: 10.2147/cmar.s325373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/21/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose We aimed to construct of a nomogram to predict progression-free survival (PFS) in locoregionally advanced nasopharyngeal carcinoma (LA-NPC) with risk stratification using computed tomography (CT) radiomics features and clinical factors. Patients and Methods A total of 311 patients diagnosed with LA-NPC (stage III–IVa) at our hospital between 2010 and 2014 were included. The region of interest (ROI) of the primary nasopharyngeal mass was manually outlined. Independent sample t-test and LASSO-logistic regression were used for selecting the most predictive radiomics features of PFS, and to generate a radiomics signature. A nomogram was built with clinical factors and radiomics features, and the risk stratification model was tested accordingly. Results In total, 20 radiomics features most associated with prognosis were selected. The radiomics nomogram, which integrated the radiomics signature and significant clinical factors, showed excellent performance in predicting PFS, with C-index of 0.873 (95% CI: 0.803~0.943), which was better than that of the clinical nomogram (C-index, 0.729, 95% CI: 0.620~0.838) as well as of the TNM staging system (C-index, 0.689, 95% CI: 0.592–0.787) in validation cohort. The calibration curves and the decision curve analysis (DCA) plot obtained suggested satisfying accuracy and clinical utility of the model. The risk stratification tool was able to predict differences in prognosis of patients in different risk categories (p<0.001). Conclusion CT-based radiomics features, an in particular, radiomics nomograms, have the potential to become an accurate and reliable tool for assisting with prognosis prediction of LA-NPC.
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Affiliation(s)
- Chang Yan
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - De-Song Shen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Xiao-Bo Chen
- School of First Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Dan-Ke Su
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Zhong-Guo Liang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Kai-Hua Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Ling Li
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Xia Liang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Hai Liao
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China
| | - Xiao-Dong Zhu
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, 530021, People's Republic of China.,Affiliated Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530100, People's Republic of China
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Zhang XL, Yan ZW, Wang F, Wang X, Xu H, Hu RG, Yan C, Lin S. [Effects of Microplastics Addition on Soil Organic Carbon Mineralization in Citrus Orchard]. Huan Jing Ke Xue 2021; 42:4558-4565. [PMID: 34414756 DOI: 10.13227/j.hjkx.202102042] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
To investigate the effects of microplastics on soil organic carbon mineralization and the changes in soil enzyme activities, an incubation experiment was conducted whereby single applications of either microplastics or straw, and combined application of both, were added to Dangyang citrus orchard soil. The results showed that the combined application of straw and microplastics significantly affected organic carbon mineralization in the soil, but the single addition of microplastics had no significant effect. Compared with straw alone, the application of a small combined amount of microplastics and straw significantly increased soil organic carbon mineralization by 8.20%, while medium and high amounts of the combined application significantly inhibited soil organic carbon mineralization. The lowest amount of organic carbon mineralization occurred with the highest amount of combined microplastics and straw, 10.13% lower than with straw alone. The addition of microplastics significantly reduced the activity of β-glucosidase. In particular, a high amount of microplastics significantly decreased the activity of β-glucosidase, compared with the control, by 20.52%, 43.93%, and 17.79% on the day 1, 6, and 35, respectively. However, straw application alleviated the inhibition effect of microplastic application on soil β-glucosidase activity. The soil organic carbon mineralization rate was significantly positively correlated with DOC, MBC and β-glucosidase activity.
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Affiliation(s)
- Xiu-Ling Zhang
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Zi-Wei Yan
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Feng Wang
- Hubei Provincial Academy of Eco-environmental Sciences, Wuhan 430072, China
| | - Xi Wang
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Han Xu
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Rong-Gui Hu
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Chang Yan
- Hubei Agricultural Ecological Environment Protection Station, Wuhan 430070, China
| | - Shan Lin
- Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, College of Recourses and Environment, Huazhong Agricultural University, Wuhan 430070, China
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Wang D, Huang X, Yan L, Zhou L, Yan C, Wu J, Su Z, Huang Y. The Structure Biology of Tau and Clue for Aggregation Inhibitor Design. Protein J 2021; 40:656-668. [PMID: 34401998 DOI: 10.1007/s10930-021-10017-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/12/2021] [Indexed: 12/22/2022]
Abstract
Tau is a microtubule-associated protein that is mainly expressed in central and peripheral nerve systems. Tau binds to tubulin and regulates assembly and stabilization of microtubule, thus playing a critical role in neuron morphology, axon development and navigation. Tau is highly stable under normal conditions; however, there are several factors that can induce or promote aggregation of tau, forming neurofibrillary tangles. Neurofibrillary tangles are toxic to neurons, which may be related to a series of neurodegenerative diseases including Alzheimer's disease. Thus, tau is widely accepted as an important therapeutic target for neurodegenerative diseases. While the monomeric structure of tau is highly disordered, the aggregate structure of tau is formed by closed packing of β-stands. Studies on the structure of tau and the structural transition mechanism provide valuable information on the occurrence, development, and therapy of tauopathies. In this review, we summarize recent progress on the structural investigation of tau and based on which we discuss aggregation inhibitor design.
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Affiliation(s)
- Dan Wang
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Xianlong Huang
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Lu Yan
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Luoqi Zhou
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Chang Yan
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Jinhu Wu
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Zhengding Su
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China.,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China
| | - Yongqi Huang
- Key Laboratory of Industrial Fermentation (Ministry of Education), Hubei University of Technology, Wuhan, 430068, China. .,Hubei Key Laboratory of Industrial Microbiology, Department of Biological Engineering, Hubei University of Technology, Wuhan, 430068, Hubei, China.
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Hua H, Dong X, Zhang Y, Fang F, Zhang B, Li X, Yu Q, Zheng K, Yan C. [rCsHscB derived from Clonorchis sinensis has therapeutic effect on dextran sodium sulfate-induced chronic ulcerative colitis in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:664-670. [PMID: 34134952 DOI: 10.12122/j.issn.1673-4254.2021.05.05] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the therapeutic effect of rCsHscB derived from Clonorchis sinensis on dextran sodium sulfate (DSS)-induced chronic ulcerative colitis in mice. OBJECTIVE C57BL/6 mice were randomized into negative control (NC) group (n= 10), rCsHscB group (n=10), DSS group (n=15), and DSS+rCsHscB group (n=15), and in the latter two groups, chronic ulcerative colitis was induced in the mice using 2% DSS. In rCsHscB and DSS+ rCsHscB groups, the mice received intraperitoneal injections of 125 μg/mL rCsHscB on the 4th and 7th day following DSS administration, and PBS was injected in the other two groups. The mice were euthanized on the 84th day, and pathological changes of the colon were evaluated by HE and Masson staining. The levels of CD4+ and CD8+ T cells in the peripheral blood and lamina propria gastric lymphocytes (LPL) were analyzed by flow cytometer; the levels of IL-6, MCP-1 and IL-10 in colon homogenate were determined using ELISA, and the phosphorylation of ERK1/2, JNK and P38 was detected with Western blotting. OBJECTIVE Compared with those in NC group, the mice in rCsHscB group exhibited no adverse responses to the treatment. The mice in DSS group had severe pathologies in the colon with significantly increased ratios of CD4+ and CD4+/CD8+ T cells in peripheral blood and LPL, increased levels of IL-6 and MCP-1 but no obvious changes in IL-10 in colon homogenate, and significantly augmented phosphorylation levels of ERK1/2, JNK and P38. Compared with those in DSS group, the mice in DSS+ rCsHscB group showed ameliorated colon pathologies with decreased CD4+T/CD8+T cell ratio in the peripheral blood and LPL, significantly decreased IL-6 and MCP-1 levels and increased IL-10 in colon homogenate, and lowered phosphorylation levels of ERK1/2, JNK and P38. OBJECTIVE rCsHscB can produce therapeutic effect on DSS-induced chronic ulcerative colitis in mice possibly by inhibiting the production of pro-inflammatory factors and regulating the balance of CD4+/CD8+T cells through the MAPK pathway.
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Affiliation(s)
- H Hua
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - X Dong
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - Y Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - F Fang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - B Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - X Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - Q Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - K Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - C Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Key Laboratory of Infection and Immunity, Department of Pathogen and Immunology, Xuzhou Medical University, Xuzhou 221004, China
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He M, Yan C, Li J, Suryawanshi MP, Kim J, Green MA, Hao X. Kesterite Solar Cells: Insights into Current Strategies and Challenges. Adv Sci (Weinh) 2021; 8:2004313. [PMID: 33977066 PMCID: PMC8097387 DOI: 10.1002/advs.202004313] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Earth-abundant and environmentally benign kesterite Cu2ZnSn(S,Se)4 (CZTSSe) is a promising alternative to its cousin chalcopyrite Cu(In,Ga)(S,Se)2 (CIGS) for photovoltaic applications. However, the power conversion efficiency of CZTSSe solar cells has been stagnant at 12.6% for years, still far lower than that of CIGS (23.35%). In this report, insights into the latest cutting-edge strategies for further advance in the performance of kesterite solar cells is provided, particularly focusing on the postdeposition thermal treatment (for bare absorber, heterojunction, and completed device), alkali doping, and bandgap grading by engineering graded cation and/or anion alloying. These strategies, which have led to the step-change improvements in the power conversion efficiency of the counterpart CIGS solar cells, are also the most promising ones to achieve further efficiency breakthroughs for kesterite solar cells. Herein, the recent advances in kesterite solar cells along these pathways are reviewed, and more importantly, a comprehensive understanding of the underlying mechanisms is provided, and promising directions for the ongoing development of kesterite solar cells are proposed.
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Affiliation(s)
- Mingrui He
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
| | - Chang Yan
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
| | - Jianjun Li
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
| | - Mahesh P. Suryawanshi
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
| | - Jinhyeok Kim
- Department of Materials Science and EngineeringChonnam National UniversityGwangju61186Republic of Korea
| | - Martin A. Green
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
| | - Xiaojing Hao
- School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesNew South WalesSydneyNSW2052Australia
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Yan C, Liu C, Yao L, Wang X, Wang J, Li P. Short-Term Effect of Percutaneous Coronary Intervention on Heart Rate Variability in Patients with Coronary Artery Disease. Entropy (Basel) 2021; 23:e23050540. [PMID: 33924819 PMCID: PMC8146536 DOI: 10.3390/e23050540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 01/18/2023]
Abstract
Myocardial ischemia in patients with coronary artery disease (CAD) leads to imbalanced autonomic control that increases the risk of morbidity and mortality. To systematically examine how autonomic function responds to percutaneous coronary intervention (PCI) treatment, we analyzed data of 27 CAD patients who had admitted for PCI in this pilot study. For each patient, five-minute resting electrocardiogram (ECG) signals were collected before and after the PCI procedure. The time intervals between ECG collection and PCI were both within 24 h. To assess autonomic function, normal sinus RR intervals were extracted and were analyzed quantitatively using traditional linear time- and frequency-domain measures [i.e., standard deviation of the normal-normal intervals (SDNN), the root mean square of successive differences (RMSSD), powers of low frequency (LF) and high frequency (HF) components, LF/HF] and nonlinear entropy measures [i.e., sample entropy (SampEn), distribution entropy (DistEn), and conditional entropy (CE)], as well as graphical metrics derived from Poincaré plot [i.e., Porta’s index (PI), Guzik’s index (GI), slope index (SI) and area index (AI)]. Results showed that after PCI, AI and PI decreased significantly (p < 0.002 and 0.015, respectively) with effect sizes of 0.88 and 0.70 as measured by Cohen’s d static. These changes were independent of sex. The results suggest that graphical AI and PI metrics derived from Poincaré plot of short-term ECG may be potential for sensing the beneficial effect of PCI on cardiovascular autonomic control. Further studies with bigger sample sizes are warranted to verify these observations.
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Affiliation(s)
- Chang Yan
- School of Control Science and Engineering, Shandong University, Jinan 250061, China; (C.Y.); (L.Y.); (X.W.); (J.W.)
| | - Changchun Liu
- School of Control Science and Engineering, Shandong University, Jinan 250061, China; (C.Y.); (L.Y.); (X.W.); (J.W.)
- Correspondence: (C.L.); (P.L.)
| | - Lianke Yao
- School of Control Science and Engineering, Shandong University, Jinan 250061, China; (C.Y.); (L.Y.); (X.W.); (J.W.)
| | - Xinpei Wang
- School of Control Science and Engineering, Shandong University, Jinan 250061, China; (C.Y.); (L.Y.); (X.W.); (J.W.)
| | - Jikuo Wang
- School of Control Science and Engineering, Shandong University, Jinan 250061, China; (C.Y.); (L.Y.); (X.W.); (J.W.)
| | - Peng Li
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
- Correspondence: (C.L.); (P.L.)
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Zheng WH, Yan C, Chen T, Kang DZ. New scheme for the preparation and use of artificial cerebrospinal fluid. J Physiol Pharmacol 2021; 71. [PMID: 33902002 DOI: 10.26402/jpp.2020.6.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/31/2020] [Indexed: 11/03/2022]
Abstract
This study aimed to explore a set of simplified schemes for the preparation and application of artificial cerebrospinal fluid (ACSF) to improve the experiment efficiency and neurosafety of ACSF. We prepared ACSF into parts A and B, according to the cerebrospinal fluid (CSF) data in rabbits. They were mixed in equal volumes to form ACSF, continous foaming with mixture gas (95% O2 and 5% CO2). Sampling inspection showed the chemical stability of ACSF in the three months after preparation. However, it needed to be kept continous foaming, as pH is correlated to the solubility of CO2. We further improved the application scheme by sealing the foamed ACSF in infusion bags filled with mixture gas, which could keep the pH stable for 24 hours. It was helpful in promoting the progress of clinical and experimental research relating to ACSF.
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Affiliation(s)
- W-H Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China
| | - C Yan
- Department of Traditional Chinese Medicine, The Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, Taijiang District, Fuzhou, Fujian, China
| | - T Chen
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China
| | - D-Z Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Taijiang District, Fuzhou, Fujian, China.
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Lei Y, He L, Yan C, Wang Y, Lv G. PERK activation by CCT020312 chemosensitizes colorectal cancer through inducing apoptosis regulated by ER stress. Biochem Biophys Res Commun 2021; 557:316-322. [PMID: 33894420 DOI: 10.1016/j.bbrc.2021.03.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 12/11/2022]
Abstract
Endoplasmic reticulum (ER) stress is a significant mechanism for chemoresistance to colorectal cancer (CRC) treatment. The RNA-like endoplasmic reticulum kinase (PERK) is critical for ER stress induction. In the present study, we attempted to explore whether PERK activator CCT020312 (CCT) could be effective for CRC treatment, and reveal the underlying mechanisms. We first found that CCT dose- and time-dependently reduced CRC cell proliferation. Importantly, it markedly improved the chemosensitivity of CRC cells that were drug-sensitive or -resistant to taxol treatment, as evidenced by the significantly decreased cell viability. Moreover, CCT at the non-toxic concentration exhibited obviously synergistic effects with taxol to induce apoptosis and cell cycle arrest in G2/M phase in vitro. In addition, we showed that CCT alone considerably induced ER stress in CRC cells through a dose- and time-dependent fashion. Meanwhile, CCT combined with taxol caused significant ER stress through improving phosphorylated PERK, eukaryotic translation initiation factor 2α (eIF2ɑ), C/EBP homologous protein (CHOP) and glucose-regulated protein 78 (GRP78). More studies showed that the interaction between PERK and GRP78 was a potential target for CCT to perform its regulatory events. Intriguingly, PERK knockdown markedly abolished the regulatory role of CCT and taxol cotreatments in cell proliferation suppression and apoptosis induction, indicating the importance of PERK for CCT to perform its anti-cancer bioactivity. Our in vivo experiments confirmed that CCT plus taxol dramatically reduced tumor growth in CRC xenografts. Together, all these results suggested that promoting PERK activation by CCT may be an effective therapeutic strategy to improve CRC to taxol treatment.
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Affiliation(s)
- Yunpeng Lei
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guang Dong Province, 518000, China
| | - Lirui He
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guang Dong Province, 518000, China
| | - Chang Yan
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guang Dong Province, 518000, China
| | - Yuchen Wang
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guang Dong Province, 518000, China
| | - Guoqing Lv
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guang Dong Province, 518000, China.
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Zhao F, Shi M, Niu Y, Liang Y, Zhu H, Zhang Q, Yan C, Ma T. P37.35 Identification of DNA Methylation Markers to Distinguish Early-Stage Lung Adenocarcinomas from Benign Pulmonary Nodules. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.781] [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: 12/01/2022]
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70
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Yan C, Weinberg D, Jasrasaria D, Kolaczkowski MA, Liu ZJ, Philbin JP, Balan AD, Liu Y, Schwartzberg AM, Rabani E, Alivisatos AP. Uncovering the Role of Hole Traps in Promoting Hole Transfer from Multiexcitonic Quantum Dots to Molecular Acceptors. ACS Nano 2021; 15:2281-2291. [PMID: 33336575 DOI: 10.1021/acsnano.0c08158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Understanding electronic dynamics in multiexcitonic quantum dots (QDs) is important for designing efficient systems useful in high power scenarios, such as solar concentrators and multielectron charge transfer. The multiple charge carriers within a QD can undergo undesired Auger recombination events, which rapidly annihilate carriers on picosecond time scales and generate heat from absorbed photons instead of useful work. Compared to the transfer of multiple electrons, the transfer of multiple holes has proven to be more difficult due to slower hole transfer rates. To probe the competition between Auger recombination and hole transfer in CdSe, CdS, and CdSe/CdS QDs of varying sizes, we synthesized a phenothiazine derivative with optimized functionalities for binding to QDs as a hole accepting ligand and for spectroscopic observation of hole transfer. Transient absorption spectroscopy was used to monitor the photoinduced absorption features from both trapped holes and oxidized ligands under excitation fluences where the averaged initial number of excitons in a QD ranged from ∼1 to 19. We observed fluence-dependent hole transfer kinetics that last around 100 ps longer than the predicted Auger recombination lifetimes, and the transfer of up to 3 holes per QD. Theoretical modeling of the kinetics suggests that binding of hole acceptors introduces trapping states significantly different from those in native QDs passivated with oleate ligands. Holes in these modified trap states have prolonged lifetimes, which promotes the hole transfer efficiency. These results highlight the beneficial role of hole-trapping states in devising hole transfer pathways in QD-based systems under multiexcitonic conditions.
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Affiliation(s)
- Chang Yan
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Daniel Weinberg
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Dipti Jasrasaria
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Matthew A Kolaczkowski
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Zi-Jie Liu
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John P Philbin
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Arunima D Balan
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yi Liu
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Adam M Schwartzberg
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Eran Rabani
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 69978, Israel
| | - A Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
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71
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Ha HD, Yan C, Katsoukis G, Kamat GA, Moreno-Hernandez IA, Frei H, Alivisatos AP. Precise Colloidal Plasmonic Photocatalysts Constructed by Multistep Photodepositions. Nano Lett 2020; 20:8661-8667. [PMID: 33226246 DOI: 10.1021/acs.nanolett.0c03431] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Natural photosynthesis relies on a sophisticated charge transfer pathway among multiple components with precise spatial, energetic, and temporal organizations in the aqueous environment. It continues to inspire and challenge the design and fabrication of artificial multicomponent colloidal nanostructures for solar-to-fuel conversion. Herein, we introduce a plasmonic photocatalyst synthesized with colloidal methods with five integrated components including cocatalysts installed in orthogonal locations. The precise deposition of individual inorganic components on an Au/TiO2 nanodumbell nanostructure is enabled by photoreduction and photo-oxidation, which selectively occurs at the TiO2 tip sites and Au lateral sites, respectively. Under visible-light irradiation, the photocatalyst exhibited activity of oxygen evolution from water without scavengers. We demonstrate that each component is essential for improving the photocatalytic performance. In addition, mechanistic studies suggest that the photocatalytic reaction requires combining the hot charge carriers derived from exciting both the d-sp interband transition and the localized surface plasmon resonance of Au.
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Affiliation(s)
- Hyun Dong Ha
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Chang Yan
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Georgios Katsoukis
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gaurav A Kamat
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Ivan A Moreno-Hernandez
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Heinz Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - A Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United states
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72
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Yan C, Fang W, Wan L, Li L, Li H, Du B, Hao S. Transfemoral-venous transcatheter access to left ventricle through the created communication of inter-ventricular septum with the assistance of arterio-venous circuit. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2584] [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
During transcatheter aortic/mitral valve replacement (TA/MVR), current available routes are limited due to unfavorable entry-angle, vessel-anatomy or mini-thoracotomy. Through created communication of inter-ventricular septum (C-IVS), transfemoral venous transcatheter access to left ventricle becomes feasible with the assistance of arterio-venous circuit.
Purpose
The study was conducted to investigate the feasibility and safety of transfemoral-venous transcatheter access to left ventricle through the created C-IVS in a swine model.
Methods
Via femoral artery, transcatheter puncture of mid-IVS was performed with the custom-made nickel-titanium needle (0.038-inch, needle-tip bent 60 degrees automatically associated with increased hardness when temperature was above 30°C) and 6F-sheath in 20 healthy Chinese mini-swine. Then femoral arterio-venous circuit was established through created C-IVS with hydrophilic guidewire in all swine, and femoral veno-venous circuit was further created through C-IVS and atrial septum in 4 swine. After pre-dilation of C-IVS, a 20F-sheath was introduced into left ventricle transvenously over the guidewire. Furthermore, transfemoral-venous TAVR was attempted with this approach in one swine. C-IVS was evaluated postoperatively and was further confirmed pathologically 2 months later.
Results
All transcatheter puncture of IVS was performed successfully in left ventricle and the thickness of mid-IVS was 7.67±0.98 mm. During the puncture, ventricular fibrillation occurred in one swine (successfully defibrillation) and only isolated ventricular premature beats/non-sustained ventricular tachycardia were observed in other swine. In all swine, femoral arterio-venous/veno-venous circuit was established via C-IVS, and the 20F-sheath was introduced into left ventricle safely through femoral vein and C-IVS. With the aid of vessel circuit, the 20F-sheath was further advanced into aorta in 16 swine (the entry-angle was 145.3±12.2 degrees) and into left atrium in 4 swine. After the procedure, there was one swine with moderate tricuspid regurgitation and 5 swine with mild residual shunt (2.6±0.7 mm). In addition, epicardial coronary arteries were normal in all swine. Two months later, residual shunt was still detected in 3 swine and the communication was confirmed pathologically. In other swine, there was no defect of IVS and mild replacement-scar was identified along C-IVS. In the swine underwent transfemoral-venous TAVR, prosthetic valve was deployed successfully with good function.
Conclusions
With the aid of vessel circuit, transfemoral-venous transcatheter access to left ventricle is feasible and safe via C-IVS, and transfemoral-venous TAVR was achieved successfully using this novel approach with favorable entry-angle.
Figure 1
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): National Natural Science Foundation of China
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Affiliation(s)
- C Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - W Fang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Wan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Li
- Tong Ren Hospital- Capital Medical University, Beijing, China
| | - B Du
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - S Hao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
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73
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Yan C, Li L, Pan X, Li S, Li H, Wan L, Wang L, Fang W. Indirect evaluation of device-endothelialization with cardiac-CT after transcatheter closure of atrial septal defect: how long should antiplatelet therapy last postoperatively? Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
After transcatheter closure of atrial septal defect (ASD), it is still unclear about the in-vivo process of device-endothelialization in humans, which determines the duration of antiplatelet therapy. Based on contrast-uptake within device, cardiac-CT might have the potential to assess device-endothelialization indirectly.
Purpose
The study was conducted to investigate the status of device-endothelialization with cardiac-CT after transcatheter closure of ASD.
Methods
After more than 6 months of transcatheter ASD closure, cardiac-CT was performed in 119 patients (48M/71F; age: 46.7±14.4 years). According to contrast-uptake within device, complete or incomplete device-endothelialization was determined. In the latter, it was further divided into partial-endothelialization (with filling-defect) and no-endothelialization (without filling-defect). Multivariate logistic regression was used to determine the risk factors of incomplete device-endothelialization. In addition, device-endothelialization was analyzed grossly and histopathologically in 7 patients.
Results
During the implantation-period of 2.57±2.59 years, incomplete device-endothelialization was identified in 43.7% of patients (partial-endothelialization in 36 patients and no-endothelialization in 16 patients). Complete device-endothelialization occurred in 14.3% of patients during 0.5–1 year and 73.8% after one year. After 6-month antiplatelet therapy, migraine restarted in 15 patients with incomplete device-endothelialization and 3 patients with complete device-endothelialization. After one-year antiplatelet therapy, migraine was still detected in 4 of 15 patients with incomplete device-endothelialization. There was a significant association between high in-vivo device-thickness and incomplete device-endothelialization (P<0.001) after adjusted for confounding factors. Pathological findings from 7 patients corresponded well with cardiac-CT.
Conclusions
Cardiac-CT had the potential to evaluate the status of device-endothelialization after transcatheter closure of ASD and there was a good clinico-pathological correlation. Incomplete device-endothelialization was common postoperatively in humans and was associated with device-oversizing. Further research is required to determine the appropriate duration of antiplatelet therapy after device implantation.
Figure 1
Funding Acknowledgement
Type of funding source: Other. Main funding source(s): National Natural Science Foundation of China
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Affiliation(s)
- C Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - X Pan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - S Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Li
- Tong Ren Hospital- Capital Medical University, Beijing, China
| | - L Wan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Wang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - W Fang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
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74
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Tsuboi M, Wu YL, He J, John T, Grohe C, Majem M, Goldman J, Laktionov K, Kim SW, Kato T, Vu H, Akewanlop C, Yu CJ, de Marinis F, Domine M, Shepherd F, Yan C, Atasoy A, Herbst R. 356MO Osimertinib adjuvant therapy in patients (pts) with resected EGFR-mutated (EGFRm) NSCLC (ADAURA): Central nervous system (CNS) disease recurrence. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.349] [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: 12/01/2022] Open
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75
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Zhong H, Zheng Y, Lin P, Zhao Z, Xi J, Zhu W, Yu M, Zhang W, Lv H, Yan C, Hu J, Wang Z, Lu J, Yuan Y, Luo S. LIMB GIRDLE MUSCULAR DYSTROPHIES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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76
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Chen BJ, Li YD, Feng CD, Zhang HM, Yan C, Xiao WB. Theoretical studies of the g factors and local structures of the Ni 3+ centers in Na 2 Zn(SO 4 ) 2 ·4H 2 O and K 2 Zn(SO 4 ) 2 ·6H 2 O crystals. Magn Reson Chem 2020; 58:921-928. [PMID: 32391937 DOI: 10.1002/mrc.5039] [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: 03/06/2020] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
The local structures and the g factors gi (i = x, y, z) for Ni3+ centers in Na2 Zn(SO4 )2 ·4H2 O (DPPH) and K2 Zn(SO4 )2 ·6H2 O (PHZS) crystals are theoretically studied by using the perturbation formulas of the g factors for a 3d7 ion with low spin (S = 1/2) in orthorhombically compressed octahedra. In these formulas, the contributions to g factors from both the spin-orbit coupling interactions of the central ion and ligands are taken into account, and the required crystal-field parameters are estimated from the superposition model and the local geometry of the systems. Based on the calculations, the Ni-O bonds are found to suffer the axial compression δz (or Δz) of about 0.111 Å (or 0.036 Å) along the z-axis for Ni3+ centers in DPPH (or PHZS) crystals. Meanwhile, the Ni-O bonds may experience additional planar bond length variation δx (≈0.015 Å) along x- and y-axes for the orthorhombic Ni3+ center in DPPH. The theoretical g factors agree well with the experimental data. The obtained local structural parameters for both Ni3+ centers are discussed.
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Affiliation(s)
- B J Chen
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - Y D Li
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - C D Feng
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
| | - H M Zhang
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
| | - C Yan
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - W B Xiao
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
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77
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Zhong H, Yu M, Lin P, Zhao Z, Xi J, Zhu W, Zheng Y, Zhang W, Lv H, Yan C, Hu J, Wang Z, Lu J, Yuan Y, Luo S. LIMB GIRDLE MUSCULAR DYSTROPHIES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.149] [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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78
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Zhao H, Yan C, Hu Y, Mu L, Liu S, Huang K, Li Q, Li X, Tao D, Qin J. Differentiated cancer cell-originated lactate promotes the self-renewal of cancer stem cells in patient-derived colorectal cancer organoids. Cancer Lett 2020; 493:236-244. [PMID: 32898601 DOI: 10.1016/j.canlet.2020.08.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 06/10/2020] [Revised: 08/04/2020] [Accepted: 08/31/2020] [Indexed: 12/13/2022]
Abstract
Tumors harbor diverse compartments of cells with distinct metabolic properties and phenotypes, but the mechanism by which metabolic commensalism among distinct subsets of cancer cells affects tumor progression remains unclear. Colorectal cancer (CRC) has been reported to consist of cancer stem cells (CSCs) and differentiated cancer cells (non-CSCs). In the present study, organoid models were employed to show that CSCs and non-CSCs in CRC were characterized by distinct metabolic phenotypes. Treatment with either non-CSC-derived conditioned medium or exogenous lactate enhanced organoid-forming and tumor-initiating capacity of CSCs. In tumor regeneration assays with co-implanted CSCs and non-CSCs, the tumor-initiating activity was reduced when either monocarboxylate transporter (MCT)4 in non-CSCs or MCT1 in CSCs was silenced or inhibited. Mechanistically, oxiadative phosphorylation-derived reactive oxygen species in CSCs activated AKT-Wnt/β-catenin signaling, which could be induced by lactate from non-CSCs. Overall, these results suggest that CSCs and non-CSCs possess distinct metabolic profiles and, unexpectedly, non-CSC-originated lactate promotes self-renewal of CSCs and thus contributes to CRC progression. Our findings establish a rationale for developing novel therapies targeting the metabolic commensalism between different cell populations in CRC.
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Affiliation(s)
- Hui Zhao
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chang Yan
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yibing Hu
- Department of Breast Surgery, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Lei Mu
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuang Liu
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kaiyu Huang
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qilin Li
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaolan Li
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Deding Tao
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jichao Qin
- Molecular Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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79
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Zhou C, Yan C, Yang F. 31P Accurate detection of HRD status in multiple cancer types using somatic mutation pattern. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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80
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Tsuboi M, Wu YL, He J, John T, Grohe C, Majem M, Goldman J, Laktionov K, Kim SW, Kato T, Vu H, Akewanlop C, Yu CJ, de Marinis F, Domine M, Shepherd F, Yan C, Atasoy A, Herbst R. LBA1 Osimertinib adjuvant therapy in patients (pts) with resected EGFR mutated (EGFRm) NSCLC (ADAURA): Central nervous system (CNS) disease recurrence. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2279] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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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81
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Wang S, Yan C, Yang F. 33P BLAST-guided mappability knowledgebase facilitates accurate detection of somatic variants. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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82
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Su L, Li X, Yan C, Yang Y. 966P Activation of the Wnt/PCP signaling pathway is an adverse prognostic predictor in patients with low grade glioma (LGG). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1081] [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] Open
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83
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Yang S, Huan X, Yan C, Song J, Luo SS, Lu JH, Zhao CB. [Efficacy of thymectomy in patients with non-thymoma myasthenia gravis]. Zhonghua Yi Xue Za Zhi 2020; 100:2297-2302. [PMID: 32746602 DOI: 10.3760/cma.j.cn112137-20191206-02664] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy between thymectomy plus prednisone and prednisone alone in patients with non-thymoma myasthenia gravis (MG). Methods: Thirty generalized MG patients without thymoma who underwent thymectomy were collected as the operation group, and thirty-nine patients without thymectomy who were treated with prednisone alone were matched as the control group. The start point was the enrollment time and the endpoint event was the "clinical remission" (including complete stabilization remission, drug remission, and poor performance). The survival curve was used to analyze the difference of endpoint event time between the two groups. Besides, a 12-month follow-up study was conducted to compare relevant clinical indicators between the two groups. Results: There was no significant difference in the occurrence time of endpoint events between the two groups (P=0.614). After 6-month follow-up, no significant differences were found in clinical remission rate, the dosage of pyridostigmine bromide and prednisone, the peak dosage of prednisone, the use of other immunosuppressive medications and the rate of hospitalization for exacerbation of disease between the two groups (all P>0.05). After 12-month follow-up, the dosage of prednisone and pyridostigmine in the operation group was significantly lower than that in the control group (5(0,10)mg/d vs 7.5(5,10)mg/d and 30(0,105)mg/d vs 90(15,180)mg/d; P=0.038, 0.032). Conclusion: In patients with mild to moderate non-thymoma generalized MG, thymectomy does not achieve faster remission, but it does reduce the long-term dosage of prednisone and bromopyrazine.
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Affiliation(s)
- S Yang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China [Yang Song is now working at the Department of Neurology, the Third Affiliated Hospital of Soochow University (Changzhou First People's Hospital), Changzhou 213003, China]
| | - X Huan
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - C Yan
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J Song
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - S S Luo
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J H Lu
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - C B Zhao
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
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84
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Su Z, Liang G, Fan P, Luo J, Zheng Z, Xie Z, Wang W, Chen S, Hu J, Wei Y, Yan C, Huang J, Hao X, Liu F. Device Postannealing Enabling over 12% Efficient Solution-Processed Cu 2 ZnSnS 4 Solar Cells with Cd 2+ Substitution. Adv Mater 2020; 32:e2000121. [PMID: 32613674 DOI: 10.1002/adma.202000121] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 05/15/2020] [Indexed: 06/11/2023]
Abstract
Kesterite Cu2 ZnSnS4 is a promising photovoltaic material containing low-cost, earth-abundant, and stable semiconductor elements. However, the highest power conversion efficiency of thin-film solar cells based on Cu2 ZnSnS4 is only about 11% due to low open-circuit voltage and fill factor mainly caused by antisite defects and unfavorable heterojunction interface. In this work, a postannealing procedure is proposed to complete a Cd-alloyed Cu2 ZnSnS4 device. The postannealing to complete the device significantly enhances the performance of the indium tin oxide and promotes the moderate interdiffusion of elements between the layers in the device. As a result of the diffusion of Cu, Zn, In, and Sn, the interfacial electron and hole densities are improved, leading to the achievement of a suitable band alignment for carrier transport. The postannealing also reduces the interface traps and deep-level defects, contributing to decreased nonradiative recombination. Therefore, the open-circuit voltage and fill factor are both improved, and an efficiency over 12% for pure sulfide-based kesterite thin-film solar cells is obtained.
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Affiliation(s)
- Zhenghua Su
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Guangxing Liang
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ping Fan
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Jingting Luo
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhuanghao Zheng
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhigao Xie
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Wei Wang
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Shuo Chen
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Juguang Hu
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yadong Wei
- Shenzhen Key Laboratory of Advanced Thin Films and Applications, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Chang Yan
- School of Photovoltaic and Renewable Energy Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Jialiang Huang
- School of Photovoltaic and Renewable Energy Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Xiaojing Hao
- School of Photovoltaic and Renewable Energy Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Fangyang Liu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
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85
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Li W, Luo Z, Yan CY, Wang XH, He ZJ, Ouyang SH, Yan C, Liu LF, Zhou QQ, Mu HL, Gong HB, Duan WJ, Liang L, Kurihara H, Feng D, Li YF, He RR. Autophagic degradation of PML promotes susceptibility to HSV-1 by stress-induced corticosterone. Am J Cancer Res 2020; 10:9032-9049. [PMID: 32802177 PMCID: PMC7415815 DOI: 10.7150/thno.46921] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
Rationale: Herpes simplex virus type 1 (HSV-1) is a neurotropic virus that can cause a variety of clinical syndromes including mucocutaneous disease and HSV-1 encephalitis (HSE). Here, we characterize the molecular mechanisms underlying the susceptibility to HSV-1 under stressful conditions. Methods: Restraint stress and corticosterone (CORT, a primary stress hormone) were respectively used to establish HSV-1 susceptible model in vivo and in vitro. Viral titers were determined by plaque assay. Western blotting, immunofluorescence, transmission electron microscopy (TEM), qRT-PCR, H&E staining, IHC staining and flow cytometry were employed to evaluate virus-related protein expressions and detect the activation of autophagy. Loss- and gain-function assays, co-immunoprecipitation (co-IP) technique and autophagy agonist/antagonist treatments were applied in mechanistic experiments. Results: Restraint stress increased the susceptibility of mouse brain to HSV-1. Similarly, CORT treatment enhanced the susceptibility of neural cells to HSV-1. Furthermore, PML protein level in HSV-1 infected brain tissues and neural cells was remarkably decreased by stress treatment in vivo or CORT treatment in vitro, while its transcriptional level was not affected. Notably, a striking decline in protein expressions of ICP27 and gB was observed in PML-overexpressing cells, which was reversed by CORT treatment. By contrast, protein expression of gB was increased by knockdown with si-PML in virus-infected SH-SY5Y cells. We further discovered that CORT-driven PML degradation was dependent on the activation of autophagy in a ULK1-independent manner, rather than proteasome pathway. Bafilomycin A1 (BaF1) attenuated the augmentation effect of CORT on HSV-1 infection. The expressions of viral proteins were reduced in LC3-depleted cells, and the degradation of PML by CORT-induced autophagy was prevented in cells with LC3 knockdown by RNAi. Interestingly, PML was revealed to interact with the autophagic cargo receptor P62 and the autophagic effector protein LC3. Additionally, CORT failed to increase gB protein level when PML was silenced, providing direct evidence linking autophagic degradation of PML and CORT-induced virus susceptibility. Conclusion: Our results revealed that restraint stress/CORT increased HSV-1 susceptibility by delivering PML into autolysosomes for degradation. The results obtained from in vitro and in vivo models not only demonstrated the adverse effects of stress on HSV-1 infection, but also systematically investigated the underlying molecular mechanisms. These discoveries broaden our understanding of the interplay between host and viruses, and a comprehensive understanding of the role of autophagy in viral infection will provide information for future development of innovative drugs against viral infection.
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86
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Kamat GA, Yan C, Osowiecki WT, Moreno-Hernandez IA, Ledendecker M, Alivisatos AP. Self-Limiting Shell Formation in Cu@Ag Core-Shell Nanocrystals during Galvanic Replacement. J Phys Chem Lett 2020; 11:5318-5323. [PMID: 32530633 DOI: 10.1021/acs.jpclett.0c01551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The understanding of synthetic pathways of bimetallic nanocrystals remains limited due to the complex energy landscapes and dynamics involved. In this work, we investigate the formation of self-limiting Cu@Ag core-shell nanoparticles starting from Cu nanocrystals followed by galvanic replacement with Ag ions. Bulk quantification with atomic emission spectroscopy and spatially resolved elemental mapping with electron microscopy reveal distinct nucleation regimes that produce nanoparticles with a tunable Ag shell thickness, but only up to a certain limiting thickness. We develop a quantitative transport model that explains this observed self-limiting structure as arising from the balance between entropy-driven interdiffusion and a positive mixing enthalpy. The proposed model depends only on the intrinsic physical properties of the system such as diffusivity and mixing energy and directly yields a high level of agreement with the elemental mapping profiles without requiring additional fit parameters.
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Affiliation(s)
- Gaurav A Kamat
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Chang Yan
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Wojciech T Osowiecki
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ivan A Moreno-Hernandez
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Marc Ledendecker
- Department of Technical Chemistry, Technical University Darmstadt, Alarich-Weiss Straße 8, 64287 Darmstadt, Germany
| | - A Paul Alivisatos
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
- Kavli Energy NanoScience Institute, Berkeley, California 94720, United States
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87
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Garcia EG, Veloso A, Oliveira ML, Allen JR, Loontiens S, Brunson D, Do D, Yan C, Morris R, Iyer S, Garcia SP, Iftimia N, Van Loocke W, Matthijssens F, McCarthy K, Barata JT, Speleman F, Taghon T, Gutierrez A, Van Vlierberghe P, Haas W, Blackburn JS, Langenau DM. PRL3 enhances T-cell acute lymphoblastic leukemia growth through suppressing T-cell signaling pathways and apoptosis. Leukemia 2020; 35:679-690. [PMID: 32606318 PMCID: PMC8009053 DOI: 10.1038/s41375-020-0937-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 06/10/2020] [Accepted: 06/16/2020] [Indexed: 01/06/2023]
Abstract
T cell acute lymphoblastic leukemia (T-ALL) is an aggressive malignancy of thymocytes and is largely driven by the NOTCH/MYC pathway. Yet, additional oncogenic drivers are required for transformation. Here, we identify protein tyrosine phosphatase type 4 A3 (PRL3) as a collaborating oncogenic driver in T-ALL. PRL3 is expressed in a large fraction of primary human T-ALLs and is commonly co-amplified with MYC. PRL3 also synergized with MYC to initiate early-onset ALL in transgenic zebrafish and was required for human T-ALL growth and maintenance. Mass spectrometry phosphoproteomic analysis and mechanistic studies uncovered that PRL3 suppresses downstream T cell phosphorylation signaling pathways, including those modulated by VAV1, and subsequently suppresses apoptosis in leukemia cells. Taken together, our studies have identified new roles for PRL3 as a collaborating oncogenic driver in human T-ALL and suggest that therapeutic targeting of the PRL3 phosphatase will likely be a useful treatment strategy for T-ALL.
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Affiliation(s)
- E G Garcia
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - A Veloso
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - M L Oliveira
- Instituto de Medicina Molecular João Lobo Antunes Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - J R Allen
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - S Loontiens
- Cancer Research Institute Ghent, Ghent, Belgium
| | - D Brunson
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - D Do
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - C Yan
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - R Morris
- Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA
| | - S Iyer
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - S P Garcia
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - N Iftimia
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - W Van Loocke
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Biomolecular Medicine and Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - F Matthijssens
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Biomolecular Medicine and Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - K McCarthy
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - J T Barata
- Instituto de Medicina Molecular João Lobo Antunes Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - F Speleman
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Biomolecular Medicine and Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - T Taghon
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - A Gutierrez
- Division of Hematology/Oncology, Boston Children's Hospital and Dana-Farber Cancer Institute, Boston, USA
| | - P Van Vlierberghe
- Cancer Research Institute Ghent, Ghent, Belgium.,Department of Biomolecular Medicine and Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - W Haas
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA.,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA.,Harvard Stem Cell Institute, Boston, MA, 02114, USA.,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - J S Blackburn
- Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, KY, 40536, USA
| | - D M Langenau
- Department of Pathology, Massachusetts General Research Institute, Boston, MA, 02114, USA. .,Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA. .,Harvard Stem Cell Institute, Boston, MA, 02114, USA. .,Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA.
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88
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Yang XP, Yan C, Yuan Z, Zhou J, Miao JX, He R, Zhu G. Association study of SNCA gene polymorphisms with schizophrenia in a Chinese North Han population. Eur Rev Med Pharmacol Sci 2020; 24:4979-4987. [PMID: 32432761 DOI: 10.26355/eurrev_202005_21189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Previous studies suggested that the alpha-synapse protein (SNCA) gene and its coding product α-synuclein (α-Syn) may play a role in the pathogenesis of neurodegenerative diseases. The mutation of SNCA can influence the formation of nerve fibers and the function of dopaminergic neurons, and that may be related to addictive behavior, such as alcohol dependence. SNCA may overlap with the pathogenesis of schizophrenia and Parkinson's disease or alcohol dependence associated with the dopamine pathway. The aim was to determine the association between three SNCA SNPs (rs3822086C/T, rs11931074G/T, and rs356219A/G) and schizophrenia in a Chinese North Han population. PATIENTS AND METHODS A total of 878 subjects, with or without schizophrenia, were included in our study. DNA purification, Polymerase Chain Reaction (PCR) amplification, and subsequent restriction fragment length polymorphism (RFLP) analysis were manipulated to determine genotypes. RESULTS Between the schizophrenia group and healthy group, neither the genotype nor allele frequencies of rs3822086C/T, rs11931074G/T, or rs356219A/G differed significantly in either the total sample or the subgroups. In the haplotype analysis, the ATT and GTT haplotype frequencies differed significantly between the patients and controls in the total sample (χ2=6.052, p=0.0139; χ2=4.508, p=0.0337). In the female subgroup, the ATT haplotype frequency differed significantly between the patients and controls (χ2=4.219, p=0.04). CONCLUSIONS There was no association between SNCA polymorphisms and schizophrenia in the North Han Chinese population, and the ATT haplotype may be a susceptibility factor for schizophrenia.
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Affiliation(s)
- X-P Yang
- Department of Psychiatry, The First Affiliated Hospital of China Medical University, Shenyang, China.
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89
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Zeng Y, Sun K, Huang J, Nielsen MP, Ji F, Sha C, Yuan S, Zhang X, Yan C, Liu X, Deng H, Lai Y, Seidel J, Ekins-Daukes N, Liu F, Song H, Green M, Hao X. Quasi-Vertically-Orientated Antimony Sulfide Inorganic Thin-Film Solar Cells Achieved by Vapor Transport Deposition. ACS Appl Mater Interfaces 2020; 12:22825-22834. [PMID: 32326702 DOI: 10.1021/acsami.0c02697] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The one-dimensional photovoltaic absorber material Sb2S3 requires crystal orientation engineering to enable efficient carrier transport. In this work, we adopted the vapor transport deposition (VTD) method to fabricate vertically aligned Sb2S3 on a CdS buffer layer. Our work shows that such a preferential vertical orientation arises from the sulfur deficit of the CdS surface, which creates a beneficial bonding environment between exposed Cd2+ dangling bonds and S atoms in the Sb2S3 molecules. The CdS/VTD-Sb2S3 interface recombination is suppressed by such properly aligned ribbons at the interface. Compared to typical [120]-oriented Sb2S3 films deposited on CdS by the rapid thermal evaporation (RTE) method, the VTD-Sb2S3 thin film is highly [211]- and [121]-oriented and the performance of the solar cell is increased considerably. Without using any hole transportation layer, a conversion efficiency of 4.73% is achieved with device structure of indium tin oxide (ITO)/CdS/Sb2S3/Au. This work provides a potential way to obtain vertically aligned thin films on different buffer layers.
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Affiliation(s)
- Yiyu Zeng
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Kaiwen Sun
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Jialiang Huang
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Michael P Nielsen
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Fan Ji
- School of Material Science, University of New South Wales, Sydney, NSW 2052, Australia
| | - Chuhan Sha
- School of Material Science, University of New South Wales, Sydney, NSW 2052, Australia
| | - Shengjie Yuan
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Xueyun Zhang
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Chang Yan
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Xu Liu
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Hui Deng
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yanqing Lai
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jan Seidel
- School of Material Science, University of New South Wales, Sydney, NSW 2052, Australia
| | - Ned Ekins-Daukes
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Fangyang Liu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Haisheng Song
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Martin Green
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
| | - Xiaojing Hao
- School of Photovoltaic and Renewable Energy Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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90
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Yan C, Nie W, Vogel AL, Dada L, Lehtipalo K, Stolzenburg D, Wagner R, Rissanen MP, Xiao M, Ahonen L, Fischer L, Rose C, Bianchi F, Gordon H, Simon M, Heinritzi M, Garmash O, Roldin P, Dias A, Ye P, Hofbauer V, Amorim A, Bauer PS, Bergen A, Bernhammer AK, Breitenlechner M, Brilke S, Buchholz A, Mazon SB, Canagaratna MR, Chen X, Ding A, Dommen J, Draper DC, Duplissy J, Frege C, Heyn C, Guida R, Hakala J, Heikkinen L, Hoyle CR, Jokinen T, Kangasluoma J, Kirkby J, Kontkanen J, Kürten A, Lawler MJ, Mai H, Mathot S, Mauldin RL, Molteni U, Nichman L, Nieminen T, Nowak J, Ojdanic A, Onnela A, Pajunoja A, Petäjä T, Piel F, Quéléver LLJ, Sarnela N, Schallhart S, Sengupta K, Sipilä M, Tomé A, Tröstl J, Väisänen O, Wagner AC, Ylisirniö A, Zha Q, Baltensperger U, Carslaw KS, Curtius J, Flagan RC, Hansel A, Riipinen I, Smith JN, Virtanen A, Winkler PM, Donahue NM, Kerminen VM, Kulmala M, Ehn M, Worsnop DR. Size-dependent influence of NO x on the growth rates of organic aerosol particles. Sci Adv 2020; 6:eaay4945. [PMID: 32518819 PMCID: PMC7253163 DOI: 10.1126/sciadv.aay4945] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 03/19/2020] [Indexed: 05/24/2023]
Abstract
Atmospheric new-particle formation (NPF) affects climate by contributing to a large fraction of the cloud condensation nuclei (CCN). Highly oxygenated organic molecules (HOMs) drive the early particle growth and therefore substantially influence the survival of newly formed particles to CCN. Nitrogen oxide (NOx) is known to suppress the NPF driven by HOMs, but the underlying mechanism remains largely unclear. Here, we examine the response of particle growth to the changes of HOM formation caused by NOx. We show that NOx suppresses particle growth in general, but the suppression is rather nonuniform and size dependent, which can be quantitatively explained by the shifted HOM volatility after adding NOx. By illustrating how NOx affects the early growth of new particles, a critical step of CCN formation, our results help provide a refined assessment of the potential climatic effects caused by the diverse changes of NOx level in forest regions around the globe.
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Affiliation(s)
- C. Yan
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - W. Nie
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
| | - A. L. Vogel
- CERN, CH-1211, Geneva, Switzerland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - L. Dada
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - K. Lehtipalo
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
- Finnish Meteorological Institute, Erik Palménin aukio 1, 00560 Helsinki, Finland
| | - D. Stolzenburg
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Wien, Austria
| | - R. Wagner
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - M. P. Rissanen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - M. Xiao
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - L. Ahonen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - L. Fischer
- University of Innsbruck, Institute for Ion and Applied Physics, 6020 Innsbruck, Austria
| | - C. Rose
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - F. Bianchi
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - H. Gordon
- CERN, CH-1211, Geneva, Switzerland
- University of Leeds, Leeds LS2 9JT, UK
| | - M. Simon
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - M. Heinritzi
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - O. Garmash
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - P. Roldin
- Division of Nuclear Physics, Department of Physics, Lund University, P. O. Box 118, SE-221 00 Lund, Sweden
| | - A. Dias
- CERN, CH-1211, Geneva, Switzerland
- CENTRA and FCUL, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - P. Ye
- Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave., Pittsburgh, PA 15213, USA
- Aerodyne Research Inc., Billerica, MA 01821, USA
| | - V. Hofbauer
- Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave., Pittsburgh, PA 15213, USA
| | - A. Amorim
- CENTRA and FCUL, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - P. S. Bauer
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Wien, Austria
| | - A. Bergen
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - A.-K. Bernhammer
- University of Innsbruck, Institute for Ion and Applied Physics, 6020 Innsbruck, Austria
| | - M. Breitenlechner
- University of Innsbruck, Institute for Ion and Applied Physics, 6020 Innsbruck, Austria
| | - S. Brilke
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Wien, Austria
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - A. Buchholz
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
| | - S. Buenrostro Mazon
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | | | - X. Chen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - A. Ding
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
| | - J. Dommen
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - D. C. Draper
- Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - J. Duplissy
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - C. Frege
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - C. Heyn
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - R. Guida
- CERN, CH-1211, Geneva, Switzerland
| | - J. Hakala
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - L. Heikkinen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - C. R. Hoyle
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - T. Jokinen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - J. Kangasluoma
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
| | - J. Kirkby
- CERN, CH-1211, Geneva, Switzerland
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - J. Kontkanen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - A. Kürten
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - M. J. Lawler
- Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - H. Mai
- California Institute of Technology, 210-41, Pasadena, CA 91125, USA
| | | | - R. L. Mauldin
- Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave., Pittsburgh, PA 15213, USA
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA
| | - U. Molteni
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - L. Nichman
- School of Earth and Environmental Science, University of Manchester, Manchester M13 9PL, UK
| | - T. Nieminen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - J. Nowak
- Aerodyne Research Inc., Billerica, MA 01821, USA
| | - A. Ojdanic
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Wien, Austria
| | | | - A. Pajunoja
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
| | - T. Petäjä
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
| | - F. Piel
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - L. L. J. Quéléver
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - N. Sarnela
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - S. Schallhart
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | | | - M. Sipilä
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - A. Tomé
- IDL Universidade da Beira Interior, Covilhã, Portugal
| | - J. Tröstl
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - O. Väisänen
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
| | - A. C. Wagner
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - A. Ylisirniö
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
| | - Q. Zha
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - U. Baltensperger
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | | | - J. Curtius
- Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - R. C. Flagan
- California Institute of Technology, 210-41, Pasadena, CA 91125, USA
| | - A. Hansel
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- University of Innsbruck, Institute for Ion and Applied Physics, 6020 Innsbruck, Austria
- IONICON GesmbH, Innsbruck, Austria
| | - I. Riipinen
- Department of Environmental Science and Analytical Chemistry (ACES) and Bolin Centre for Climate Research, Stockholm University, 10691 Stockholm, Sweden
| | - J. N. Smith
- Department of Chemistry, University of California, Irvine, CA 92697, USA
| | - A. Virtanen
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
| | - P. M. Winkler
- University of Vienna, Faculty of Physics, Boltzmanngasse 5, 1090 Wien, Austria
| | - N. M. Donahue
- Carnegie Mellon University Center for Atmospheric Particle Studies, 5000 Forbes Ave., Pittsburgh, PA 15213, USA
| | - V.-M. Kerminen
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - M. Kulmala
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
- Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
- Helsinki Institute of Physics, FI-00014 Helsinki, Finland
| | - M. Ehn
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
| | - D. R. Worsnop
- Institute for Atmospheric and Earth System Research/INAR–Physics, Faculty of Science, University of Helsinki, 00560 Helsinki, Finland
- Aerodyne Research Inc., Billerica, MA 01821, USA
- University of Eastern Finland, Department of Applied Physics, P.O. Box 1627, 70211 Kuopio, Finland
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91
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Yan C, Cui J, Huang L, Du B, Chen L, Xue G, Li S, Zhang W, Zhao L, Sun Y, Yao H, Li N, Zhao H, Feng Y, Liu S, Zhang Q, Liu D, Yuan J. Rapid and visual detection of 2019 novel coronavirus (SARS-CoV-2) by a reverse transcription loop-mediated isothermal amplification assay. Clin Microbiol Infect 2020; 26:773-779. [PMID: 32276116 PMCID: PMC7144850 DOI: 10.1016/j.cmi.2020.04.001] [Citation(s) in RCA: 352] [Impact Index Per Article: 88.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To evaluate a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay for detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and compare it with RT-PCR. METHODS We designed primers specific to the orf1ab and S genes of SARS-CoV-2. Total viral RNA was extracted using the QIAamp Viral RNA Mini Kit. We optimized the RT-LAMP assay, and evaluated it for its sensitivity and specificity of detection using real-time turbidity monitoring and visual observation. RESULTS The primer sets orf1ab-4 and S-123 amplified the genes in the shortest times, the mean (±SD) times were 18 ± 1.32 min and 20 ± 1.80 min, respectively, and 63°C was the optimum reaction temperature. The sensitivities were 2 × 101 copies and 2 × 102 copies per reaction with primer sets orf1ab-4 and S-123, respectively. This assay showed no cross-reactivity with 60 other respiratory pathogens. To describe the availability of this method in clinical diagnosis, we collected 130 specimens from patients with clinically suspected SARS-CoV-2 infection. Among them, 58 were confirmed to be positive and 72 were negative by RT-LAMP. The sensitivity was 100% (95% CI 92.3%-100%), specificity 100% (95% CI 93.7%-100%). This assay detected SARS-CoV-2 in a mean (±SD) time of 26.28 ± 4.48 min and the results can be identified with visual observation. CONCLUSION These results demonstrate that we developed a rapid, simple, specific and sensitive RT-LAMP assay for SARS-CoV-2 detection among clinical samples. It will be a powerful tool for SARS-CoV-2 identification, and for monitoring suspected patients, close contacts and high-risk groups.
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Affiliation(s)
- C Yan
- Capital Institute of Paediatrics, Beijing, China
| | - J Cui
- Capital Institute of Paediatrics, Beijing, China
| | - L Huang
- Treatment and Research Centre for Infectious Diseases, The Fifth Medical Centre of PLA General Hospital, Beijing, China
| | - B Du
- Capital Institute of Paediatrics, Beijing, China
| | - L Chen
- Beijing Macro & Micro-test Bio-Tech Co., Ltd. Beijing, China
| | - G Xue
- Capital Institute of Paediatrics, Beijing, China
| | - S Li
- Capital Institute of Paediatrics, Beijing, China
| | - W Zhang
- Capital Institute of Paediatrics, Beijing, China
| | - L Zhao
- Capital Institute of Paediatrics, Beijing, China
| | - Y Sun
- Capital Institute of Paediatrics, Beijing, China
| | - H Yao
- Capital Institute of Paediatrics, Beijing, China
| | - N Li
- Capital Institute of Paediatrics, Beijing, China
| | - H Zhao
- Capital Institute of Paediatrics, Beijing, China
| | - Y Feng
- Capital Institute of Paediatrics, Beijing, China
| | - S Liu
- Capital Institute of Paediatrics, Beijing, China
| | - Q Zhang
- Capital Institute of Paediatrics, Beijing, China
| | - D Liu
- Computational Virology Group, Centre for Bacteria and Virus Resources and Bioinformation, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China.
| | - J Yuan
- Capital Institute of Paediatrics, Beijing, China.
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92
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Liu Y, Wang L, Su Y, Brown K, Yang R, Zhang Y, Duanmu Y, Guo Z, Zhang W, Yan C, Yan D, Cheng X. CTXA hip: the effect of partial volume correction on volumetric bone mineral density data for cortical and trabecular bone. Arch Osteoporos 2020; 15:50. [PMID: 32193671 DOI: 10.1007/s11657-020-00721-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 02/25/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED This study compares the results of computed tomography X-ray absorptiometry (CTXA) hip volumetric BMD (vBMD) analyses of cortical and trabecular bone with and without partial volume correction. For cortical bone in some circumstances, corrected cortical volumes were negative and corrected vBMD was very high. For trabecular bone, the correction effects are smaller. CTXA volumetric data should be interpreted with caution. PURPOSE Previous studies have reported concerns about the reliability of CTXA hip cortical vBMD measurements generated using partial volume (PV) correction (the "default" analysis, with cortical PV correction). To date, no studies have examined the results of the alternative ("new") analysis (with trabecular PV correction). This study presents in vivo and phantom data comparing the corrected and uncorrected data for cortical and trabecular bone respectively. METHODS We used the commercial QCTPro CTXA software to analyze CT scans of 129 elderly Chinese men and women and an anthropomorphic European Proximal Femur phantom (EPFP) and accessed data for two alternative scan analyses using the database dump utility. The CTXA software gives the user two methods of performing the PV correction: (1) a default analysis in which only cortical bone results are corrected; (2) a new analysis in which only trabecular bone results are corrected. Both methods are based on a numerical recalculation of vBMD values without any change in volume of interest (VOI) placement. RESULT In vivo, the results of the two analyses for integral bone were the same while cortical and trabecular results were different. PV correction of cortical bone led to a decrease of cortical volume for all four VOIs: total hip (TH), femoral neck (FN), trochanter (TR), and intertrochanter (IT) volumes were reduced on average by 7.8 cm3, 0.9 cm3, 2.5 cm3, and 4.3 cm3 respectively. For TR, where cortex was thinnest, average corrected cortical volume was negative (- 0.4± 1.3 cm3). Corrected cortical vBMD values were much larger than uncorrected ones for TH, FN, and IT. Scatter plots of corrected cortical vBMD against cortical bone thickness showed that elevated results correlated with thinner cortices. When trabecular bone was corrected for the PV effect, trabecular volumes of TH, FN, TR, and IT were reduced on average by 7.9 cm3, 0.8 cm3, 2.6 cm3, and 4.4 cm3 respectively, while vBMD measurements were increased correspondingly. The trabecular volume and vBMD measurements of the two datasets both had highly positive correlations. For the EPFP, the PV-corrected FN data deviated from the nominal phantom value, but was closer for the TR and IT VOIs. Both corrected and uncorrected data overestimated trabecular vBMD, with the corrected results showing greater deviation from nominal values. CONCLUSION The default and new CTXA analyses for volumetric data generate different results, both for cortical and trabecular bone. For cortical bone, the uncorrected results are subject to partial volume effects but the correction method of the default analysis overcorrects the effect leading to in part unreasonable results for cortical bone volume and BMD. For trabecular bone, the correction effects are smaller. CTXA volumetric data should be interpreted with caution.
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Affiliation(s)
- Y Liu
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - L Wang
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - Y Su
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - K Brown
- Mindways Software, Austin, 78704, TX, USA
| | - R Yang
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - Y Zhang
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - Y Duanmu
- Department of Radiology, The First Affiliated Hospital of USTC South District, Hefei, 230036, China
| | - Z Guo
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - W Zhang
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - C Yan
- Department of Radiology, Xuanwu Hospital Capital Medical University, Beijing, 100053, China
| | - D Yan
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China
| | - X Cheng
- Department of Radiology, Beijing Jishuitan Hospital, 31 Xinjiekou East Street, Beijing, 100035, China.
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Gao L, Li R, Liang Z, Yan C, Zhu A, Li S, Yang Z, He H, Gan H, Chen J. Remobilization mechanism and release characteristics of phosphorus in saline sediments from the Pearl River Estuary (PRE), South China, based on high-resolution measurements. Sci Total Environ 2020; 703:134411. [PMID: 31734506 DOI: 10.1016/j.scitotenv.2019.134411] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 09/09/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
The internal loading of phosphorus (P) is commonly considered an essential factor contributing to eutrophication in freshwater bodies. However, investigation of the lability and remobilization characteristics of P in estuarine saline sediments has been limited. In this study, a sequential chemical extraction procedure and high-resolution measurement using the diffusive gradients in thin film (DGT) technique were employed to explore the lability, potential remobilization mechanism and release characteristics of sediment P in the Pearl River Estuary (PRE), South China. The P accumulated significantly in sediments along the west coast of the PRE due to the combined effects of terrestrial P inputs and specific hydrological conditions. The geochemical fractions of sediment P followed the order of organic P (Org-P) (mean: 58.6%) > iron-bound P (Fe-P) (23.4%) > calcium-bound P (Ca-P) (17.4%) > loosely bound P (LS-P) (0.63%). Synchronous vertical variations in DGT-labile Fe and P in the upper and middle parts of the sediment profiles confirmed that Fe-coupled P mobilization occurred in saline sediments. In contrast, sulfate reduction in bottom sediments supposed to decouple the Fe-P cycling relationship. Additionally, the formation of an "iron curtain" (Fe oxyhydroxides) in the oxic surface sediments efficiently prevented upward diffusion of P, leading to relatively low effluxes of P (0.098-6.59 ng cm-2 d-1) across the sediment-water interface.
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Affiliation(s)
- Lei Gao
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Rui Li
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zuobing Liang
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chang Yan
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Aiping Zhu
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shaoheng Li
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhigang Yang
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China
| | - Haijun He
- Guangzhou Marine Geological Survey, Guangzhou 510760, China
| | - Huayang Gan
- Guangzhou Marine Geological Survey, Guangzhou 510760, China
| | - Jianyao Chen
- School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China.
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94
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Zou Y, Zhao D, Yan C, Ji Y, Liu J, Xu J, Lai Y, Tian J, Zhang Y, Huang Z. Correction to Novel Ligustrazine-Based Analogs of Piperlongumine Potently Suppress Proliferation and Metastasis of Colorectal Cancer Cells in Vitro and in Vivo. J Med Chem 2020; 63:880-881. [PMID: 31898900 DOI: 10.1021/acs.jmedchem.9b02072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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95
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Sah BK, Li J, Yan C, Li C, Yan M, Zhu ZG. Anastomosis for distal gastrectomy in Chinese patients: uncut roux-Y or roux-Y? BMC Surg 2020; 20:7. [PMID: 31918683 PMCID: PMC6953135 DOI: 10.1186/s12893-019-0672-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 12/25/2019] [Indexed: 02/03/2023] Open
Abstract
Background An appropriate method of anastomosis is crucial for gastric cancer patients who require gastrojejunal anastomosis. Surgeons have proposed different types of modified gastrojejunostomies in the last two decades. We focused on two types of standard anastomosis, i.e., Uncut Roux-Y and Roux-Y gastrojejunostomies, and compared the differences in immediate postoperative complications between the two types. Methods This is a retrospective study on 236 gastric cancer patients who underwent curative distal gastrectomy with gastrojejunal Roux-Y or Uncut Roux-Y anastomosis for six consecutive years. Immediate postoperative complications were compared between the two groups. The authors discussed the causes of the significant complications and their management. Results There was no difference in demographics between the two groups (92 Roux-y Versus 144 Uncut Roux-y). The overall complication rate was 20.8% with 1.4% anastomotic leakage in the Uncut Roux-Y group versus 33.7% with 7.6% anastomotic failures in the Roux-Y group (p < 0.05). More abdominal infections occurred in the Roux-Y anastomosis group compared with the Uncut Roux-Y anastomosis group (p < 0.05). Duration of postoperative stay was significantly longer in patients with Roux-y anastomosis group (p < 0.05). Conclusions Considering the surgical simplicity and postoperative complications, the Uncut Roux-Y is a better choice for anastomosis in patients with gastric cancer undergoing gastrojejunostomy. A well-designed large cohort in a multi-centre randomized controlled trial is necessary to support these findings and compare other aspects.
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Affiliation(s)
- B K Sah
- Department of General Surgery, Gastrointestinal Surgery Unit, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China.
| | - J Li
- Clinical Research Centre, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - C Yan
- Department of General Surgery, Gastrointestinal Surgery Unit, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China.
| | - C Li
- Department of General Surgery, Gastrointestinal Surgery Unit, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - M Yan
- Department of General Surgery, Gastrointestinal Surgery Unit, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
| | - Z G Zhu
- Department of General Surgery, Gastrointestinal Surgery Unit, Ruijin Hospital Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China
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Qu C, Yan C, Cao W, Li F, Qu Y, Guan K, Si C, Yu Z, Qu Z. miR-128-3p contributes to mitochondrial dysfunction and induces apoptosis in glioma cells via targeting pyruvate dehydrogenase kinase 1. IUBMB Life 2019; 72:465-475. [PMID: 31828927 DOI: 10.1002/iub.2212] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 11/30/2019] [Indexed: 12/13/2022]
Abstract
Glioma, like most cancers, possesses a unique bioenergetic state of aerobic glycolysis known as the Warburg effect, which is a dominant phenotype of most tumor cells. Glioma tumors exhibit high glycolytic metabolism with increased lactate production. Data derived from the gene expression profiling interactive analysis (GEPIA) database show that pyruvate dehydrogenase kinase 1 (PDK1) is significantly highly expressed in glioma tissues compared with corresponding normal tissues. PDK1 is a key enzyme in the transition of glycolysis to tricarboxylic acid cycle, via inactivating PDH and converting oxidative phosphorylation to Warburg effect, resulting in increment of lactate production. Silencing of PDK1 expression resulted in reduced lactate and ATP, accumulation of ROS, mitochondrial damage, decreased cell growth, and increased cell apoptosis. Aberrant expression of miR-128 has been observed in many human malignancies. Mechanistically, we discover that overexpressed miR-128-3p disturbs the Warburg effect in glioma cells via reducing PDK1. Our experiments confirmed that the miR-128-3p/PDK1 axis played a pivotal role in cancer cell metabolism and growth. Collectively, these findings suggest that therapeutic strategies to modulate the Warburg effect, such as targeting of PDK1, might act as a potential therapeutic target for glioma treatment.
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Affiliation(s)
- Changda Qu
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chang Yan
- Department of Anesthesiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Weifan Cao
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Fangqin Li
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yewei Qu
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ke Guan
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chengqing Si
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ze Yu
- Guangzhou Institute of Oncology, Cancer Center of Guangzhou Medical University, Guangzhou, China
| | - Zhangyi Qu
- Department of Microbiology, Public Health College, Harbin Medical University, Harbin, China
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Kendler DL, Bone HG, Massari F, Gielen E, Palacios S, Maddox J, Yan C, Yue S, Dinavahi RV, Libanati C, Grauer A. Bone mineral density gains with a second 12-month course of romosozumab therapy following placebo or denosumab. Osteoporos Int 2019; 30:2437-2448. [PMID: 31628490 PMCID: PMC6877701 DOI: 10.1007/s00198-019-05146-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 08/23/2019] [Indexed: 11/02/2022]
Abstract
UNLABELLED Romosozumab is a therapy that stimulates bone formation and reduces bone resorption. In this study of postmenopausal women with low BMD, a second course of romosozumab following a period off treatment or on denosumab increased or maintained BMD, respectively, and was well tolerated, providing insight into treatment sequence options. INTRODUCTION In patients with high fracture risk, therapies that stimulate bone formation provide rapid BMD gains; currently available agents, parathyroid hormone receptor agonists, are limited to a 2-year lifetime exposure and generally used for a single treatment course. However, for long-term osteoporosis management, a second treatment course may be appropriate. Romosozumab, a therapy with the dual effect of increasing bone formation and decreasing bone resorption, reduces fracture risk within 12 months. Here, we report efficacy and safety of a second romosozumab course. METHODS In this phase 2, dose-finding study, postmenopausal women with low bone mass (T-score ≤ - 2.0 and ≥ - 3.5) received romosozumab or placebo (month 0-24) followed by placebo or denosumab (month 24-36); participants then received a year of romosozumab (month 36-48). RESULTS Of 167 participants who entered the month 36-48 period, 35 had been initially randomized to romosozumab 210 mg monthly. In participants who received romosozumab 210 mg monthly followed by placebo, a second romosozumab course (n = 19) increased BMD by amounts similar to their initial treatment (month 0-12) at the lumbar spine (12.4%; 12.0%, respectively) and total hip (6.0%; 5.5%, respectively). Following denosumab, a second romosozumab course (n = 16) increased BMD at the lumbar spine (2.3%) and maintained BMD at the total hip. Safety profiles were similar between first and second romosozumab courses. CONCLUSIONS After 12 months off-treatment, a second romosozumab course again led to rapid and large BMD gains. Following denosumab, BMD gains with romosozumab were smaller than with initial treatment. No new safety findings were observed during the second course.
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Affiliation(s)
- D L Kendler
- Department of Medicine, University of British Columbia, 150-943 West Broadway, Vancouver, BC, V5Z 4E1, Canada.
| | - H G Bone
- Michigan Bone and Mineral Clinic, Detroit, MI, USA
| | - F Massari
- Instituto de Investigaciones Metabólicas, Buenos Aires, Argentina
| | | | | | - J Maddox
- Amgen Inc., Thousand Oaks, CA, USA
| | - C Yan
- Amgen Ltd., Cambridge, UK
- Cambridge Statistics Ltd, Cambridge, UK
| | - S Yue
- Amgen Inc., Thousand Oaks, CA, USA
- Atara Biotherapeutics, Westlake Village, CA, USA
| | | | | | - A Grauer
- Amgen Inc., Thousand Oaks, CA, USA
- Corcept Therapeutics, Menlo Park, CA, USA
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Yan C, Wan L, Pan X, Li H, Li S, Song H. 4284The combined use of radiofrequency-ablation and balloon-dilation (CURB) in the creation of a stable inter-atrial communication: first-in-man use for patients with severe pulmonary arterial hypertension. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0141] [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
Recent preclinical research has suggested that combined use of radiofrequency-ablation and balloon-dilation (CURB) had the potential to create a stable inter-atrial communication. However, the related clinical data is still absent.
Purpose
This study describes the first-in-man use of CURB in the patients with severe pulmonary arterial hypertension (PAH).
Methods
Under the guidance of fluoroscopy and intra-cardiac echocardiography, CURB was attempted in 3 patients with severe PAH (age: 35.0±12.1 years, one idiopathic PAH and two PAH related to repaired congenital heart disease). With the aid of 3D location system, fossae ovalis was ablated with radiofrequency. Then the graded balloon-dilation was performed after transseptal puncture, and radiofrequency-ablation was repeated around the rim of fenestration created with balloon-dilation. The exercise capacity and fenestration-size were followed up.
Results
CURB was performed successfully in all 3 patients, and pulmonary vascular resistance was 30.3±10.9 Wood units. The fenestration size was 5.0±1.0 mm (range: 4–6 mm), and systemic arterial oxygen saturation decreased by 4.7±0.6% (range: 4–5%). World Health Organization functional class increased by 1.6±0.5 (P<0.001) and cardiac index increased by 0.58±0.34 L/min/m2 (P<0.001). In addition, exercise capacity improved significantly (+63.7 meters, P<0.001). Follow-up (6.0±1.0 months; range: 5–7 months) showed that all fenestrations were stable (P=0.808), and no complication occurred.
Figure 1. The combined use of radiofrequency-ablation and balloon-dilation (CURB) was performed in the patient with severe PAH. Left figures showed the procedure of CURB. Middle figures showed the created fenestration with MSCT, and the morphology and size of fenestration was provided in the right-inferior panel. In addition, the sizes of right atrium and ventricle were alleviated with increase of left atrium. Right figures indicated that the fenestration-size was stable during follow-up (one week, one month and six months, respectively).
Conclusions
In patients with severe PAH, CURB is feasible and effective to create a stable inter-atrial communication. Further research was required to evaluate the long-term result of this novel approach.
ClinicalTrials.gov ID: NCT03554330.
Acknowledgement/Funding
National Natural Science Foundation of China (81670283) and Beijing Natural Science Foundation (7162160)
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Affiliation(s)
- C Yan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - L Wan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - X Pan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Li
- Tong Ren Hospital- Capital Medical University, Beijing, China
| | - S Li
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
| | - H Song
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Department of Structural Heart Disease, Beijing, China
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Ji K, Yan C. P.59The mutations in mtDNA encoded NADH dehydrogenase subunit genes as common causes of MELAS. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.088] [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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100
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Shi B, Wang L, Yan C, Chen D, Liu M, Li P. Nonlinear heart rate variability biomarkers for gastric cancer severity: A pilot study. Sci Rep 2019; 9:13833. [PMID: 31554856 PMCID: PMC6761171 DOI: 10.1038/s41598-019-50358-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/11/2019] [Indexed: 12/24/2022] Open
Abstract
Identifying prognostic factors by affordable tools is crucial for guiding gastric cancer (GC) treatments especially at earlier stages for timing interventions. The autonomic function that is clinically assessed by heart rate variability (HRV) is involved in tumorigenesis. This pilot study was aimed to examine whether nonlinear indices of HRV can be biomarkers of GC severity. Sixty-one newly-diagnosed GC patients were enrolled. Presurgical serum fibrinogen (FIB), carcinoembryonic antigen (CEA), and carbohydrate antigen 19-9 (CA199) were examined. Resting electrocardiogram (ECG) of 5-min was collected prior to surgical treatments to enable the HRV analysis. Twelve nonlinear HRV indices covering the irregularity, complexity, asymmetry, and temporal correlation of heartbeat fluctuations were obtained. Increased short-range temporal correlations, decreased asymmetry, and increased irregularity of heartbeat fluctuations were associated with higher FIB level. Increased irregularity and decreased complexity were also associated with higher CEA level. These associations were independent of age, sex, BMI, alcohol consumption, history of diabetes, left ventricular ejection fraction, and anemia. The results support the hypothesis that perturbations in nonlinear dynamical patterns of HRV predict increased GC severity. Replication in larger samples as well as the examination of longitudinal associations of HRV nonlinear features with cancer prognosis/survival are warranted.
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Affiliation(s)
- Bo Shi
- School of Medical Imaging, Bengbu Medical College, Bengbu, Anhui, 233030, China
| | - Lili Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Chang Yan
- School of Control Science and Engineering, Shandong University, Jinan, Shandong, 250061, China
| | - Deli Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Mulin Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233004, China
| | - Peng Li
- School of Control Science and Engineering, Shandong University, Jinan, Shandong, 250061, China.
- Division of Sleep and Circadian Disorders, Brigham & Women's Hospital, Harvard Medical School, Boston, 02115, MA, USA.
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