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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Liu C, Wang R, Jiao X, Zhang J, Zhang C, Wang Z. Oxysophocarpine suppresses TRAF6 level to ameliorate oxidative stress and inflammatory factors secretion in mice with dextran sulphate sodium (DSS) induced-ulcerative colitis. Microb Pathog 2023; 182:106244. [PMID: 37423495 DOI: 10.1016/j.micpath.2023.106244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 05/16/2023] [Accepted: 07/05/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE Ulcerative colitis is an inflammation-related disease with a high recurrence risk. Oxysophocarpine (OSC) is a traditional Chinese medicine isolated from legumes and exerts vital functions on many human diseases. However, the OSC's role in ulcerative colitis has not been fully elucidated. This research aimed to investigate the OSC's impact on ulcerative colitis and its mechanisms. METHODS A mouse model of ulcerative colitis was induced by dextran sulphate sodium (DSS). The effect of OSC on ulcerative colitis was examined using Disease Activity Index detection, hematoxylin-eosin (HE) staining, and enzyme-linked immunosorbent assay (ELISA). Meanwhile, the mechanism of OSC in ulcerative colitis was assessed by immunohistochemistry assay, Western blot, HE staining, and ELISA. RESULTS For the OSC's function in ulcerative colitis, OSC increased the mice weight, decreased Disease Activity Index scores, and alleviated colitis cell infiltration and epithelial cell destruction in DSS-induced ulcerative colitis. Also, OSC mitigated oxidative stress (decreased PGE2, MPO levels, and increased SOD levels) and inflammation (decreased IL-6, TNF-α and IL-1β levels) in DSS-induced ulcerative colitis. For the OSC's mechanism in ulcerative colitis, OSC inhibited the level of tumor necrosis factor receptor-associated Factor 6 (TRAF6) and the phosphorylation of nuclear factor-κB (NF-κB). TRAF6 overexpression abolished the effect of OSC on DSS-induced colon injury and its associated oxidative stress and inflammatory properties in ulcerative colitis. CONCLUSION OSC decreased the TRAF6 level to reduce oxidative stress and inflammatory factors secretion in mice with DSS induced-ulcerative colitis.
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Affiliation(s)
- Chao Liu
- Department of Proctology, Beijing Shijitan Hospital Affiliated to Capital Medical University, China
| | - Rui Wang
- Department of Proctology, Dongzhimen Hospital, Beijing University of Chinese Medicine, China
| | - Xia Jiao
- Department of Traditional Chinese Medicine, Beijing Shijitan Hospital Affiliated to Capital Medical University, China
| | - Junfeng Zhang
- Department of Traditional Chinese Medicine, Beijing Shijitan Hospital Affiliated to Capital Medical University, China
| | - Changbo Zhang
- Department of Traditional Chinese Medicine, Beijing Shijitan Hospital Affiliated to Capital Medical University, China
| | - Zhenbiao Wang
- Department of Traditional Chinese Medicine, Beijing Shijitan Hospital Affiliated to Capital Medical University, China.
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Yan SM, Huang YF, Xu L, Dong XY, Wang S, Jiao X, Yuan M, Wang GY. Escherichia coli inhibits endometriosis by inducing M1 polarity of peritoneal macrophages and the IL-1 signaling pathway. Mol Hum Reprod 2023:7133754. [PMID: 37079746 DOI: 10.1093/molehr/gaad014] [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: 10/14/2022] [Revised: 03/28/2023] [Indexed: 04/22/2023] Open
Abstract
The development of endometriosis is closely linked to macrophages, and the type M1 macrophage has been hypothesized to play an inhibitory role in its progression. Escherichia coli induces macrophage polarization toward M1 in numerous diseases and differs in the reproductive tract of patients with and without endometriosis; however, its specific role in endometriosis development remains unknown. Therefore, in this study, E. coli was selected as a stimulator to induce macrophages, and its effects on the growth of endometriosis lesions in vitro and in vivo were investigated using C57BL/6N female mice and endometrial cells. It was revealed that E. coli inhibited the migration and proliferation of co-cultured endometrial cells by IL-1 in vitro and prevented the growth of lesions and induced macrophage polarization toward M1 in vivo. However, this change was counteracted by C-C motif chemokine receptor 2 inhibitors, suggesting that it was associated with bone marrow-derived macrophages. Overall, the presence of E. coli in the abdominal cavity may be a protective factor for endometriosis.
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Affiliation(s)
- S M Yan
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - Y F Huang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - L Xu
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - X Y Dong
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - S Wang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - X Jiao
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - M Yuan
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
| | - G Y Wang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, 250021, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250014, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, Shandong, 250021, China
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Bekaii-Saab T, Khan N, Ostojic H, Jiao X, Chen G, Lin W, Bruno A. P-102 Real-world dosing of regorafenib and outcomes among patients with metastatic colorectal cancer: A retrospective analysis using US claims data. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.192] [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: 11/01/2022] Open
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Zhang L, Hong HJ, Duan BD, Zhang Y, Shao CC, Wang LN, Jiao X, Du YJ, Zou YQ, Ma YY. Neutrophil-lymphocyte ratio and hypersensitive C-reaction protein are associated with miscarriage during the second trimester of pregnancy. J BIOL REG HOMEOS AG 2021; 35:889-900. [PMID: 34013686 DOI: 10.23812/20-579-a] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study investigated whether biomarkers in the second trimester of pregnancy, including the white blood cell (WBC) count, neutrophil-lymphocyte ratio (NLR), hypersensitive C-reactive protein (hs-CRP) concentration, and procalcitonin (PCT) concentration, were associated with miscarriage during the second trimester of pregnancy. Sixty-two asymptomatic patients in their second trimester of pregnancy were included in the control group (group A). Among 67 patients diagnosed with late threatened miscarriage, 46 patients with ongoing pregnancy were included in group B and 21 patients with subsequent miscarriage were included in group C. The serum of these patients was collected and the biomarkers were analyzed. A paired-samples t-test was used for the comparison between the groups before and after the miscarriage. Statistical significance was set at p<0.05. Receiver operating characteristic curve (ROC) analysis was performed to evaluate the predictive value of different biomarkers for miscarriage during the second trimester of pregnancy. WBC count, neutrophil percentage, and hs-CRP levels were significantly higher in group C than in groups A and B (p<0.05). Lymphocyte percentage and albumin levels decreased significantly from group A to group C (p<0.05). In contrast, NLR increased significantly from group A to group C (p<0.05). There was a significant decrease in the WBC count, neutrophil percentage, hemoglobin concentration, and post-miscarriage NLR among the cases with miscarriage (p<0.05). The area under the curve of WBC count, NLR, hs-CRP, and the combination of these three factors for the prediction of late miscarriage varied from 78.0% to 82.6%. The combination of these three factors had the highest specificity of 91.1%, while hs-CRP had the highest sensitivity of 88.9%. WBC count, NLR, and hs-CRP levels are strongly associated with miscarriage during the second trimester of pregnancy, indicating that they are potential predictive biomarkers.
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Affiliation(s)
- L Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China.,Department of Obstetrics, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - H J Hong
- Department of Obstetrics, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - B D Duan
- Department of Obstetrics, Zibo Central hospital, Zibo, China
| | - Y Zhang
- Clinical Epidemiology Unit, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China.,Clinical Research Center, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - C C Shao
- Center of Evidence-based Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - L N Wang
- Department of Clinical Laboratory Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - X Jiao
- School of Medicine, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - Y J Du
- School of Medicine, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - Y Q Zou
- School of Medicine, Cheeloo College of Medicine, Shandong University, Ji'nan, China
| | - Y Y Ma
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan, China
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Jiao X, Qin B, Liu K, Wu Y, Liu J, He X, Lin M, Lin Y, Duan X, Wang H, Shao L, Zheng J, Zang Y. MA08.11 Identification of Clinical Features to Predict the Consistency of Mutational Profiles Obtained From Plasma and Tissue of Advanced NSCLC Patient. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.197] [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: 10/21/2022]
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Liu J, Li J, Zeng S, Cai G, Wang Y, Chi J, Li R, Yu Y, Jiao X, Dai Y, Feng Y, Van Zandt M, Seager S, Reich C, Gao Q. Evolution of treatments for endometrial cancers: Clinical data from two national medical databases. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.619] [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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Cai G, Gao Y, Lu W, Zeng S, Chi J, Jiao X, Li R, Li X, Liu J, Song K, Yu Y, Dai Y, Cui B, Lv W, Kong B, Xie X, Ma D, Gao Q. Ovarian cancer and pretreatment thrombosis-associated indices: Evidence based on multicenter, retrospective, observational study. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.624] [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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Gao Y, Zeng S, Xiong X, Cai G, Wang Z, Xu X, Chi J, Jiao X, Liu J, Li R, Yao S, Li X, Song K, Tang J, Xing H, Yu Z, Zeng S, Zhang Q, Yi C, Kong B, Xie X, Ma D, Li X, Gao Q. A deep convolutional neural network enabled pelvic ultrasound imaging algorithm for early and accurate diagnosis of ovarian cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Jiao X, Qin B, Xu Y, Gong F, Zang Y. 1987P Discordant genomic correlates of PD-L1 expression in lung adenocarcinoma among multiple cohorts using dissimilar PD-L1 testing techniques. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Jiao X, Lv Q, Cao SN. MicroRNA-26b-5p promotes development of neonatal respiratory distress syndrome by inhibiting differentiation of mesenchymal stem cells to type II of alveolar epithelial cells via regulating Wnt5a. Eur Rev Med Pharmacol Sci 2020; 23:1681-1687. [PMID: 30840293 DOI: 10.26355/eurrev_201902_17130] [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] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim was to investigate the role of microRNA-26b-5p in regulating mesenchymal stem cells (MSCs) differentiation to type II of alveolar epithelial cells (AECII) in the disease course of neonatal respiratory distress syndrome (NRDS). MATERIALS AND METHODS MSCs were first derived from rat bone marrow. In vitro induction of MSCs differentiation to AECII was conducted by SAGM. The mRNA levels of microRNA-26b-5p, Wnt5a, and AECII-related genes (Occludin, KGF, CK18, SpA, SpB, and SpC) during the process of cell differentiation were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Enzyme-linked immunosorbent assay (ELISA) was conducted for detecting levels of inflammatory factors tumor necrosis factor-α (TNF-α), interferon-α (INF-α), and interleukin-1 (IL-1) in cell supernatant. Dual-luciferase reporter gene assay was then carried out to verify the regulatory effect of microRNA-26b-5p on Wnt5a. MicroRNA-26b-5p expression in serum samples of NRDS neonates and healthy neonates was detected by qRT-PCR as well. RESULTS MicroRNA-26b-5p was overexpressed in NRDS neonates than those of healthy neonates. Besides, microRNA-26b-5p was highly expressed in the process of MSCs differentiation to AECII. MicroRNA-26b-5p overexpression remarkably inhibited AECII differentiation and Wnt5a expression. Levels of TNF-α, INF-α, and IL-1 in cell supernatant during differentiation induction were elevated. The regulatory effects of microRNA-26b-5p on AECII differentiation, Wnt5a expression, and inflammatory response were reversed by Wnt5a overexpression. CONCLUSIONS MicroRNA-26b-5p inhibits MSCs differentiation to AECII via inhibiting Wnt5a expression through the Wnt pathway.
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Affiliation(s)
- X Jiao
- Medical Clinical Laboratory, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China.
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Cao XS, Zhang YP, Ji HX, Jiao X, Wang H. [Changes of retinal structure after systemic immunosuppressive treatment in eyes with Vogt-Koyanagi-Harada disease]. Zhonghua Yi Xue Za Zhi 2020; 100:1725-1729. [PMID: 32536094 DOI: 10.3760/cma.j.cn112137-20200212-00265] [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: 06/11/2023]
Abstract
Objective: To assess structural changes in retina after systemic immunosuppressive treatment in Vogt-Koyanagi-Harada (VKH) disease using spectral-domain optical coherence tomography (SD-OCT). Methods: The clinical data of 17 VKH cases (34 eyes) who consecutively attended the Beijing Tongren Hospital between December 2015 and December 2019 were retrospectively reviewed. All the patients had acute or subacute onset, and underwent high-dose systemic corticosteroid and/or immunosuppressive treatment, with a followed-up time of at least 6 months. At the end of follow-up, the intraocular inflammation was controlled, and oral prednisone was withdrawn or being adjusted to less than 10 mg/day. The SD-OCT features of the included eyes were analyzed before treatment, 1 week, 1 month and 3 months after treatment, and at the last visit. Results: A total of 17 cases (34 eyes; 6 males and 11 females) were included, with an age of (42.2±10.6) years, and were followed up for (9.4±3.3) months. At 1 week after initiating treatment, the percentage of the eyes with extensive/multiple or multifocal retinal detachment in the macular region, membranous structures and intraretinal cysts, and undulations and bumps of retinal pigment epithelium (RPE) decreased (5.9% vs 100%, 2.9% vs 47.1%, 5.9% vs 70.6%, 11.8% vs 58.8%, respectively, all P<0.001). There was statistical significant difference of the percentage of ellipsoid zone and external limiting membrane (ELM) disruptions before treatment, at 3 months and the last visit (100% vs 35.3%, 64.7% vs 52.9%, 41.2% vs 26.5%, respectively, all P<0.001). At the last visit, there were statistical significant differences of the best corrected vision acuity (BCVA) between the intact ellipsoid zone group (20 eyes) and the discontinuous group (14 eyes), as well as between the intact ELM group (25 eyes) and the discontinuous group (9 eyes), respectively [0 (0, 0.05) vs 0.10 (0.03, 0.33) (log MAR), P=0.004; 0 (0, 0.07) vs 0.22 (0.05, 0.40) (log MAR), P=0.005]. Conclusions: The edema of choroid and retina subsided obviously at 1 week after initiating treatment. The extent of damage and recovery ability of ellipsoid zone and ELM were different before treatment, at 3 months and the last visit. At the last visit, the outer retinal layers failed to recover completely in some patients, and were related to the BCVA.
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Affiliation(s)
- X S Cao
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China
| | - Y P Zhang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China
| | - H X Ji
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China
| | - X Jiao
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China
| | - H Wang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Laboratory, Beijing 100730, China
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Li X, Li X, Li J, Jiao X, Jia X, Zhang X, Fan G, Yang J, Guo J. The accuracy of bone mineral density measurement using dual-energy spectral CT and quantitative CT: a comparative phantom study. Clin Radiol 2019; 75:320.e9-320.e15. [PMID: 31882174 DOI: 10.1016/j.crad.2019.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 11/13/2019] [Indexed: 12/14/2022]
Abstract
AIM To compare bone mineral density (BMD) measurement accuracy by dual-energy spectral computed tomography (CT) and quantitative CT (QCT) using an anthropomorphic European spine phantom (ESP). MATERIALS AND METHODS An ESP containing three hydroxyapatite inserts with densities of 50, 100, and 200 mg/cm3 was scanned 10 times each using spectral CT and QCT protocols. Their BMD values were measured using hydroxyapatite-based spectral CT material decomposition images and QCT images and compared with the true values in ESP. RESULTS Both protocols had good repeatability in BMD measurement with low coefficient-of-variance (spectral CT: <2.31%; QCT: <1.17%). There were biases in BMD measurement for the 50, 100, and 200 mg/cm3 hydroxyapatite insert with relative errors of 2.34% (48.83±1.13 mg/cm3), 2% (98±1.25 mg/cm3) and 5.96% (188.09±2.11 mg/cm3), in spectral CT, and 11% (55.5±0.65 mg/cm3), 9.85% (109.85±0.42 mg/cm3) and 4.04% (208.07±0.54 mg/cm3) in QCT, respectively. CONCLUSION BMD can be accurately measured using either QCT or spectral CT, and spectral CT has smaller bias than QCT.
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Affiliation(s)
- X Li
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Li
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - J Li
- GE Healthcare, Computed Tomography Research Center, Beijing, 100176, PR China
| | - X Jiao
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Jia
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - X Zhang
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - G Fan
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China
| | - J Yang
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China.
| | - J Guo
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi province, PR China.
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Nath A, Li G, Henderson L, Smith B, Reoma L, Jiao X, Santamaria U, Imamichi H, Lane C. CXCR4-usage HIV-1 strains isolated from blood and cerebrospinal fluid in subjects on suppressive antiretroviral therapy. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30147-3] [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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16
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Zhou Y, Zhou Y, Kang X, Meng C, Zhang R, Guo Y, Xiong D, Song L, Jiao X, Pan Z. Molecular cloning and functional characterisation of duck ( Anas platyrhynchos) tumour necrosis factor receptor-associated factor 3. Br Poult Sci 2019; 60:357-365. [PMID: 31046421 DOI: 10.1080/00071668.2019.1614528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
1. Tumour necrosis factor receptor-associated factor 3 (TRAF3) is a key regulator of innate immunity and acquired immunity, and has a salient anti-viral role. 2. In this experiment, the duck TRAF3 (DuTRAF3) gene was cloned according to the Anas platyrhynchos TRAF3 sequence to explore its function. The TRAF3 open reading frame contains 1704 bp that encode a protein of 567 amino acids, which contain a RING finger domain, two zinc finger motifs, a coiled-coil region, and a MATH domain. 3. Reverse transcription-polymerase chain reaction showed that DuTRAF3 was expressed in all the examined tissues, with a comparatively higher expression in the spleen and brain tissues. 4. In HEK293T cells, DuTRAF3 overexpression resulted in a significantly increased NF-κB activity and interferon (IFN)-β promoter activation. 5. Following resiquimod (R848) and poly(I:C) stimulation of duck peripheral blood mononuclear cells (PBMCs), the expressions of TRAF3 and IFN-β were significantly upregulated; in addition, following R848 stimulation, the mRNA levels of IL-6, IL-8 and IL-10 were also significantly upregulated. After infection with the Newcastle Disease Virus LaSota vaccine strain, the mRNA levels of IL-6 and IL-10 were significantly upregulated, while that of TRAF3 was downregulated. 6. These results suggest that DuTRAF3 has an important role to play in innate antiviral immune responses.
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Affiliation(s)
- Y Zhou
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - Y Zhou
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - X Kang
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - C Meng
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - R Zhang
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - Y Guo
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - D Xiong
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - L Song
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - X Jiao
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
| | - Z Pan
- a Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou , Jiangsu , China.,b Jiangsu Co-innovation Centre for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses , Yangzhou University , Yangzhou , Jiangsu , China.,c Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture and Rural Affairs , Yangzhou University , Yangzhou , Jiangsu , China.,d Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education , Yangzhou University , Yangzhou , Jiangsu , China
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Jiao X, Lokker A, Snider J, Castellanos E, Nanda S, Fisher V, Zong J, Keating K, Fellous M. Co-occurrence of NTRK fusions with other genomic biomarkers in cancer patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tiwari G, Kupfer R, Jiao X, Gaul E, Hegelich BM. Gradient magnet design for simultaneous detection of electrons and positrons in the intermediate MeV range. Rev Sci Instrum 2019; 90:083304. [PMID: 31472603 DOI: 10.1063/1.5099155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 07/22/2019] [Indexed: 06/10/2023]
Abstract
We report the design and development of a compact electron and positron spectrometer based on tapered neodymium iron boron magnets to characterize the pairs generated in laser-matter experiments. The tapered design forms a gradient magnetic field component allowing energy dependent focusing of the dispersed charged particles along a chosen detector plane. The mirror symmetric design allows for simultaneous detection of pairs with energies from 2 MeV to 500 MeV with an accuracy of ≤10% in the wide energy range from 5 to 110 MeV for a parallel beam incident on a circular aperture of 20 mm. The energy resolution drops to ≤20% for 4-90 MeV range for a divergent beam originating from a point source at 20 cm away (i.e., a solid angle of ∼8 milli steradians), with ≤10% accuracy still maintained in the narrower energy range from 10 to 55 MeV. It offers higher solid angle acceptance, even for the divergent beam, compared to the conventional pinhole aperture-based spectrometers. The proposed gradient magnet is suitable for the detection of low flux and/or monoenergetic type electron/positron beams with finite transverse sizes and offers unparalleled advantages for gamma-ray spectroscopy in the intermediate MeV range.
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Affiliation(s)
- G Tiwari
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - R Kupfer
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - X Jiao
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
| | - E Gaul
- National Energetics, 4616 West Howard Lane, Austin, Texas 78728, USA
| | - B M Hegelich
- Center for High Energy Density Science, Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA
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Jiao X, Roiban L, Foray G, Masenelli-Varlot K. Electron tomography on latex particles suspended in water using environmental scanning electron microscopy. Micron 2019; 117:60-67. [DOI: 10.1016/j.micron.2018.11.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 02/05/2023]
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20
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Higano C, Tombal B, Miller K, Saad F, Sartor O, Tangirala K, Jiao X, Kalinovsky J, Sternberg C. Clinical outcome with radium-223 (Ra-223) in patients (pts) previously treated with abiraterone (Abi) or enzalutamide (Enza): A retrospective study of real-world (RW) data from pts with metastatic castration-resistant prostate cancer (mCRPC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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21
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Jiao X, Shao S, Wang K, Yang Q, He Z, Chen K. Functional reliability analysis of a molten salt natural circulation system. Nuclear Engineering and Design 2018. [DOI: 10.1016/j.nucengdes.2018.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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22
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Fu YW, Lin MS, Yang B, Yu H, Jiao X, Huang JX. An early superficial non-ampullary duodenal tumor cured with endoscopic submucosal dissection: A case report. Oncol Lett 2017; 14:3755-3759. [PMID: 28927143 PMCID: PMC5588043 DOI: 10.3892/ol.2017.6576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 05/19/2017] [Indexed: 01/13/2023] Open
Abstract
Early superficial non-ampullary duodenal tumors are particularly rare, the clinical manifestations, including typical endoscopic or imaging features, and treatment methods are not well-characterized. The present case report describes a case of an asymptomatic 74-year-old male who presented to the Taizhou People's Hospital (Taizhou, China) for a regular health screening, where a primary superficial non-ampullary duodenal tumor was identified. Upper endoscopy revealed ~1.2 cm lesion in the second portion of the duodenum. Chromoscopy and magnification endoscopy indicated an early cancer characteristic. Subsequent endoscopic submucosal dissection was performed to remove the lesion. Histopathology validated that the lesion was a high-grade intro-epithelial neoplasm without lymph node or blood vessel invasion.
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Affiliation(s)
- Yi Wei Fu
- Department of Gastroenterology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Mao Song Lin
- Department of Gastroenterology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Bing Yang
- Department of Gastroenterology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Hong Yu
- Department of Pathology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Xia Jiao
- Department of Pathology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
| | - Jun Xing Huang
- Department of Oncology, Taizhou People's Hospital, Taizhou, Jiangsu 225300, P.R. China
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23
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Ashtari N, Jiao X, Rahimi-Balaei M, Amiri S, E. Mehr S, Yeganeh B, Marzban H. Lysosomal Acid Phosphatase Biosynthesis and Dysfunction: A Mini Review Focused on Lysosomal Enzyme Dysfunction in Brain. Curr Mol Med 2016; 16:439-46. [DOI: 10.2174/1566524016666160429115834] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/25/2016] [Accepted: 04/02/2016] [Indexed: 11/22/2022]
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Zhu X, Jiang X, Jiao X, Liu F, Xiao W, Yu H. [Primary perivascular epithelioid cell tumour of femoral: report of a case]. Zhonghua Bing Li Xue Za Zhi 2016; 45:126-7. [PMID: 26879440 DOI: 10.3760/cma.j.issn.0529-5807.2016.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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25
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Robert N, Goertz HP, Asmar L, Tseng WY, Jiao X, Portera C, Yoo B, Patt D, Antao V. Abstract P4-14-13: Pertuzumab (P) use in first-line HER2-positive metastatic breast cancer (mBC) in US community oncology practices: Treatment patterns and outcomes. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p4-14-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Pertuzumab was FDA-approved in 6/2012 for use in first-line in combination with trastuzumab (H) and docetaxel for patients (pts) with HER2-positive mBC. This retrospective study investigated the clinical characteristics, treatment patterns, safety, and outcomes for pts with HER2-positive mBC who received a P-containing regimen in first-line in US community oncology practices.
Methods: This study utilized iKnowMed electronic health records, Claims Data Warehouse, and Social Security Death Index. Pts with HER2-positive mBC, who received a P-containing regimen between 6/2012 and 6/2014 and were followed through 12/2014, had ≥2 visits within the McKesson Specialty Health/US Oncology Network, and were not on clinical trials during the study period, were eligible.
Results: Of the 322 pts who received a P-containing regimen in the first-line setting, 25% were ≥65 years of age, 63% were post-menopausal, 61% had hormone receptor-positive mBC, 84% had a performance status of 0 or 1, and 76% had a Charlson Comorbidities Index of 0. Twenty-one percent of pts had 1 site of metastasis noted, 32% had 2 sites, and 47% had 3 or more sites. Pts with de novo mBC made up 40% of this cohort. Of the pts with recurrent mBC, over 60% received H in the early-stage BC setting. In the first-line mBC setting, 93% of the 322 pts received H+P+taxane, and 7% received H+P with other chemotherapy agent(s). Common adverse events reported included: fatigue (49%), diarrhea (44%), nausea (33%), peripheral neuropathy (33%), neutropenia (24%), and rash (22%). Further analyses including outcomes of these 322 pts will be presented.
Conclusions: First-line P was given in combination with H and chemotherapy agent(s) (93% taxane). No new safety signals were observed. More details on the clinical characteristics, specific treatment patterns, and safety will be presented, along with the progression-free survival of these pts receiving first-line P-containing therapy in a real-world setting.
Citation Format: Robert N, Goertz H-P, Asmar L, Tseng W-Y, Jiao X, Portera C, Yoo B, Patt D, Antao V. Pertuzumab (P) use in first-line HER2-positive metastatic breast cancer (mBC) in US community oncology practices: Treatment patterns and outcomes. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P4-14-13.
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Affiliation(s)
- N Robert
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - H-P Goertz
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - L Asmar
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - W-Y Tseng
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - X Jiao
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - C Portera
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - B Yoo
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - D Patt
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
| | - V Antao
- US Oncology Research Inc., Houston, TX; Genentech, Inc., South San Francisco, CA
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Zhang P, Guo Z, Zhong K, Li Q, Ouyang J, Chen M, Hu A, Jiao X, Zhu X, He X. Evaluation of Immune Profiles and MicroRNA Expression Profiles in Peripheral Blood Mononuclear Cells of Long-Term Stable Liver Transplant Recipients and Recipients With Acute Rejection Episodes. Transplant Proc 2015; 47:2907-15. [PMID: 26707312 DOI: 10.1016/j.transproceed.2015.10.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 10/20/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVE This study aimed to document the difference of immunophenotypes in peripheral blood mononuclear cells (PBMCs) between long-term stable liver transplant recipients and recipients with acute rejection. We also sought to identify whether there is any correlation between microRNA (miRNA) expression profile and the differential immunoprofile in these 2 groups to establish a specific miRNA biomarker to identify potential liver transplant recipients. METHODS PBMCs were isolated from 53 stable liver transplant recipients (STA group) and 15 liver transplant recipients with repeated biopsy-proven rejection episodes admitted to our hospital. Immunoprofiles were analyzed by means of flow cytometry. Analysis of miRNA expression in the PBMCs was performed by means of real-time polymerase chain reaction. RESULTS The immune profiling analysis showed increased frequency of peripheral natural killer cells and regulatory T cells in stable liver transplant recipients compared with the acute rejection recipients and healthy volunteers (P < .05). There was no significant difference in the immune cell levels (CD19(+) B cells, CD4(+) T cells, and CD8(+) T cells) in PBMCs among the transplant recipient groups and healthy control subjects. Three miRNAs, miR-18b, miR-340, and miR-106b, were up-regulated in the PBMCs of the STA recipients compared with recipients with acute rejection. CONCLUSIONS These results suggest that miR-18b, miR-340, and miR-106b, which regulate the expression of specific immunophenotypes, can be used as potential biomarkers to identify long-term stable liver transplant recipients from recipients with acute rejection.
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Affiliation(s)
- P Zhang
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - Z Guo
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - K Zhong
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - Q Li
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - J Ouyang
- Department of Surgical Oncology, Sun Yat-sen University, Dongguan, Guangdong, People's Republic of China
| | - M Chen
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - A Hu
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - X Jiao
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China
| | - X Zhu
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China.
| | - X He
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, People's Republic of China.
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Zhu L, Jiang L, Wang W, Jia W, Liu F, Jiao X, Zhu X, Bao J, Yu H. Angiopoietin-like protein 3 is an indicator of prognosis in esophageal cancer patients. Int J Clin Exp Med 2015; 8:16101-16106. [PMID: 26629119 PMCID: PMC4659008] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 09/03/2015] [Indexed: 06/05/2023]
Abstract
Angiopoietin-like protein 3 (ANGPTL3) plays an important role in angiogenesis. This study aimed to examine the protein expression of ANGPTL3, and to evaluate its clinical significance in esophageal cancer. ANGPTL3 expression was detected using immunohistochemistry in 98 pairs of esophageal cancer and adjacent non-cancerous tissues. The expression levels of ANGPTL3 in esophageal cancer tissues were significantly higher than those in adjacent noncancerous tissues (P < 0.05). No association was observed between ANGPTL3 expression and clinical features (P > 0.05). Although ANGPTL3-negative patients had longer survival time than ANGPTL3-positive patients, the difference did not reach statistical significance (P = 0.090). Stratified analysis of ANGPTL3 expression according to clinical features revealed that there was significant association between ANGPTL3 expression and overall survival among patients aged 65 years or younger, female, or with lymph node metastasis (P < 0.05). When after adjusted for clinical features, the association remained significant only in patients aged 65 years or younger (P = 0.021).Taken together, our findings provide preliminary evidence of association of ANGPTL3 expression with the prognosis of subgroups of patients with esophageal cancer.
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Affiliation(s)
- Li Zhu
- Institute of Cardiovascular Diseases, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Lin Jiang
- Department of Anesthesiology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Wenchao Wang
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Weiguang Jia
- Department of Cardiothoracic Surgery, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Fuxing Liu
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Xia Jiao
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Xiaowei Zhu
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Jingjing Bao
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Hong Yu
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
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Robert N, Goertz H, Asmar L, Tseng W, Jiao X, Portera C, Yoo B, Patt D, Antao V. 1868 Clinical characteristics, treatment patterns, and outcomes for patients with HER2-positive metastatic breast cancer (MBC) treated with pertuzumab (P) in the first-line in a real-world setting. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30818-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mao W, Cao Z, Yang T, Jiao X, Xue Y, Li J, Hang Y, Ma X, Zhang L. [Clinical analyses of fungal pleurisy: a report of 4 cases]. Zhonghua Yi Xue Za Zhi 2015; 95:1612-1614. [PMID: 26463614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To explore the clinical features of fungal pleurisy. METHODS Four cases of fungal pleurisy diagnosed by medical thoracoscopy at Beijing Chaoyang Hospital from April 2005 to December 2012 were retrospectively studied. RESULTS There were 3 males and 1 female with an age range of 43-73 years. The time from initial onset to definite diagnosis was 17 days to 4 months. Among them, two were previously healthy while another two had underlying diseases. The diagnoses were mucor pleuritis (n = 1) and aspergillus (n = 3). There was one case of empyema. One case was diagnosed as non-Hodgkin lymphoma two years ago and had pleural metastasis during hospitalization. And another one suffered concurrently from diabetes mellitus and hypoproteinemia. The primary clinical manifestations included fever (n = 2), cough and sputum (n = 3), breathlessness (n = 4) and weight loss (n = 2). The major chest computed tomography (CT) scan revealed pleural effusion with thickening. All cases had an elevated plasma level of C-reactive protein (CRP). The characteristics of pleural effusion were empyema (n = 1) and exudates (n = 3). Pleural fluid smear and culture tests for bacteria and fungi were negative, so were pleural fluid smear tests for mycobacteria. All cases were confirmed through histopathological examination of pleural biopsies and cured after systemic antifungal therapy and pleural irrigation. CONCLUSIONS Fungal pleurisy is infrequent. Early thoracoscopy is vital because of a low positive yield of microbiologic testing of pleural fluid specimens. Systemic antifungal therapy and pleural irrigation improve the prognosis.
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Affiliation(s)
- Wenping Mao
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Zhixin Cao
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Ting Yang
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Xia Jiao
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Yi Xue
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Jie Li
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Yan Hang
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Xin Ma
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China
| | - Liming Zhang
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Beijing 100020, China;
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Hao T, Youxiang M, Xiuyong D, Ruxiang Z, Jiao X. [Prevalence and psychopathological characteristics of anxiety and depression in patients with chronic rhinosinusitis before endoscopic sinus surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2015; 50:210-214. [PMID: 26268493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the prevalence and psychopathological characteristics of anxiety and depression in patients with chronic rhinosinusitis (CRS) and to find the risk factors leading to psychological problems. METHODS Between August 2013 and April 2014, 117 consecutive patients with the diagnosis of CRS who had been scheduled for endoscopic sinus surgery were prospectively enrolled. Somatic and psychological symptoms were evaluated using a series of questionnaire instruments. The instruments included symptom checklist-90 (SCL-90), self-rating depression scale (SDS), self-rating anxiety scale (SAS) and the visual analogue scale (VAS) and the sinonasal outcome test 20 (SNOT-20) and Lund-Mackay computed tomography score. The results of SAS, SDS, SCL-90 were compared with the standard, obtained from healthy Chinese population. Multivariate Logistic regression was used to analyze the factors that might cause anxiety and depression. SPSS 19.0 software was used to analyze the data. RESULTS The scores of SAS and SDS (39.40 ± 11.55, 54.05 ± 10.96) were significantly higher than those of our country's normal standard (29.78 ± 10.46, 41.88 ± 10.57, t equals 5.648, 7.529, all P < 0.01). The SCL-90 scores were significantly higher than those of the normal standard population, including dimension of somatization, anxiety, depression, psychosis and total average score of the factors ( all P < 0.01), the result of somatization, anxiety, depression had positive correlation with the scores of SAS and SDS (r equals 0.681, 0.781, 0.531, 0.866, 0.674, 0.557, all P < 0.05). Multivariate Logistic regression showed that gender and CRS complicated with asthma or allergic rhinitis (AR) and the symptom of nasal obstruction were related to the incidence of anxiety depression comorbid. In addition, the gender and concurrent asthma had positive correlation with incidence of any anxiety or depressive disorder. To compare the abnormal psychological state group and healthy group, the SNOT-20 scores had no statistical significance (all P > 0.05). CONCLUSIONS High prevalence of anxiety and depression was found in CRS patients. Such factors as gender, nasal obstruction and concurrent with asthma or AR are high risk factors for anxiety and depression in patients with CRS.
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Zhang Q, Li N, Jiao X, Qin X, Kaur R, Lu X, Song J, Wang L, Wang J, Niu Q. Caspase-3 Short Hairpin RNAs: A Potential Therapeutic Agent in Neurodegeneration of Aluminum-Exposed Animal Model. Curr Alzheimer Res 2014; 11:961-70. [DOI: 10.2174/1567205011666141107150938] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 10/17/2014] [Accepted: 10/30/2014] [Indexed: 11/22/2022]
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Yu H, Li H, Qian H, Jiao X, Zhu X, Jiang X, Dai G, Huang J. Upregulation of miR-301a correlates with poor prognosis in triple-negative breast cancer. Med Oncol 2014; 31:283. [PMID: 25311065 DOI: 10.1007/s12032-014-0283-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 10/03/2014] [Indexed: 01/22/2023]
Abstract
Identification of biomarkers is important not only for cancer diagnosis, prognosis and treatment, but also provides new insight into cancer biology. The aim of this study was to evaluate the clinical significance of miR-301a in patients with triple-negative breast cancer (TNBC). The expression level of miR-301a was examined by quantitative reverse transcription polymerase chain reaction in 118 pairs of TNBC and adjacent noncancerous tissues. The relationships between miR-301a expression and clinical features, and prognosis of patients with TNBC were analyzed. miR-301a was upregulated in cancer tissues compared with adjacent noncancerous tissues. Furthermore, the level of miR-301a was positively correlated with tumor size, depth of invasion, TNM stage and LNM. High miR-301a expression was significantly associated with larger tumor size and LNM. Multivariate analysis suggested that miR-301a expression was an independent prognostic factor for the survival of patients with TNBC, and the effect remained significant after further stratified by clinical features. In conclusion, miR-301a may be involved in the progression of TNBC and has strong potential to serve as a biomarker for the prognosis of TNBC.
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Affiliation(s)
- Hong Yu
- Department of Pathology, Taizhou People's Hospital, 210 Yingchun Road, Taizhou, 225300, Jiangsu, China
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Jiang L, Duan BS, Huang JX, Jiao X, Zhu XW, Sheng HH, Gao HJ, Yu H. Association of the expression of unc-51-Like kinase 1 with lymph node metastasis and survival in patients with esophageal squamous cell carcinoma. Int J Clin Exp Med 2014; 7:1349-1354. [PMID: 24995094 PMCID: PMC4073755] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 05/03/2014] [Indexed: 06/03/2023]
Abstract
Unc-51-Like Kinase 1 (ULK1) is regarded as a central role in autophagy. Although the details of how ULK1 triggers autophagy are obscure, the relationship between ULK1 expression and the diagnosis and prognosis of cancer patients may guide the clinical practice and scientific research. The aim of this study was to investigate and compare the expression level of ULK1 in 86 paired esophageal squamous cell carcinoma (ESCC) and paracancerous tissues, and to examine the effect of ULK1 expression on the prognosis of ESCC patients. ULK1 was primarily expressed in cytoplasm, but was rarely seen in nucleus. The levels of cytoplasmic ULK1 in ESCC tissues were higher than those in paracancerous tissue (P < 0.01) and significantly associated with lymph node metastasis (LNM) (P = 0.025). Survival analysis showed that patients with low expression of cytoplasmic ULK1 had worse survival time than those with high expression of cytoplasmic ULK1 (hazard ratio = 1.754, 95% confidence interval: 1.022-3.010, P = 0.041), which disappeared after adjustment for TNM stages and LNM (P = 0.319). In conclusion, ULK1 might play an important role in the occurrence and development of ESCC and represent a potential prognostic biomarker for ESCC patients. However, the precise impact of ULK1 on predicting the prognosis of patients with ESCC requires further investigation.
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Affiliation(s)
- Lin Jiang
- Department of Anesthesiology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Ben-Song Duan
- Institute of Digestive Disease, Department of Gastroenterology, Tongji Hospital, Tongji UniversityShanghai, China
| | - Jun-Xing Huang
- Department of Oncology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Xia Jiao
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Xiao-Wei Zhu
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
| | - Hai-Hui Sheng
- The Institute of CMC Biobank and Translational MedicineTaizhou, Jiangsu, China
- Shanghai Engineering Center for Molecular Medicine, National Engineering Center for Biochip at ShanghaiShanghai, China
| | - Heng-Jun Gao
- Institute of Digestive Disease, Department of Gastroenterology, Tongji Hospital, Tongji UniversityShanghai, China
- The Institute of CMC Biobank and Translational MedicineTaizhou, Jiangsu, China
- Shanghai Engineering Center for Molecular Medicine, National Engineering Center for Biochip at ShanghaiShanghai, China
| | - Hong Yu
- Department of Oncology, Taizhou People’s HospitalTaizhou, Jiangsu, China
- Department of Pathology, Taizhou People’s HospitalTaizhou, Jiangsu, China
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Pestell RG, Wu K, Chen K, Wang C, Jiao X, Wang J, Cai S, Addya S, Sorensen PH, Lisanti MP, Quong A, Ertel A. Abstract P1-07-05: The cell fate factor DACH1 represses YB-1-mediated oncogenic transcription and translation. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-07-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The epithelial-mesenchymal transition (EMT) enhances cellular invasiveness and confers tumor cells with cancer stem cell like characteristics, through transcriptional and translational mechanisms. The mechanisms maintaining transcriptional and translational repression of EMT and cellular invasion are poorly understood. The Drosophila homologue of DACH1, the Dac gene is a key member of the retinal determination gene network that specifies organismal development. The dachshund (dac), eya1, eyes-absent (eya), twin of eyeless (toy), teashirt (tsh) and sinoculues (so) are expressed in progenitor cells, contributing to development of the eye and genitalia. Loss of DACH1 expression contributes to the expansion of neural progenitors, muscle satellite cell differentiation and breast cancer stem cells. In recent studies Dachshund repressed breast cancer stem cell expansion. DACH1 expression is reduced in a variety of human cancers including prostate, ovarian and human breast cancer.
Herein, the cell fate-determination factor Dachshund (DACH1), suppressed EMT via repression of cytoplasmic translational induction of Snail by inactivating the Y box-binding protein (YB-1). In the nucleus, DACH1 antagonized YB-1-mediated oncogenic transcriptional modules governing cell invasion. DACH1 blocked YB-1-induced mammary tumor growth and EMT in mice. In basal-like breast cancer (BLBC) the reduced expression of DACH1 and increased YB-1, correlated with poor metastasis free survival. The loss of DACH1 suppression of both cytoplasmic translational and nuclear transcriptional events governing EMT and tumor invasion may contribute to poor prognosis in BLBC.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-07-05.
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Affiliation(s)
- RG Pestell
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - K Wu
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - K Chen
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - C Wang
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - X Jiao
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - J Wang
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - S Cai
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - S Addya
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - PH Sorensen
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - MP Lisanti
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - A Quong
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
| | - A Ertel
- Thomas Jefferson University, Philadelphia, PA; British Columbia Cancer Research Center, Vancouer, BC, Canada; University of Manchester, Manchester, England, United Kingdom
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Pestell RG, Jiao X, Velasco M, Sicoli D, Ju X, Pestll TG, Ertel A, Ando S. Abstract P5-04-04: CCR5 antagonists block basal breast cancer and prostate cancer metastasis in vivo. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-04-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The identification of new therapeutic targets and treatments to reduce tumor metastasis homing requires alternative interrogation approaches. The roles of the chemokine CCL5 and its receptor CCR5 in breast cancer progression are controversial. Cancer metastasis is regulated by chemokines in the microenvironment. Chemokines bind to cell surface receptors that belong to the G-protein-coupled receptor family (GPCRs), controlling diverse biological and pathological processes from immune surveillance, inflammation, and cancer. Previous studies of human breast cancer and breast cancer cell lines demonstrated that the chemokine receptors CXCR4 and CCR7 are expressed in breast cancer cells, malignant breast tumors, and metastasis. Their related ligands, CXCL12 (SDF1) and CCL21, are also expressed at the site of metastasis. Subsequent studies identified altered expression of CCL5 (RANTES) in breast cancer patients, correlating with disease progression. CCL5 can be expressed and secreted either by breast cancer cells or by non-malignant stromal cells at the primary or metastatic sites. However, the roles of CCL5 and its receptors in breast cancer are not fully understood. CCL5 facilitates disease progression by recruiting and modulating the activity of inflammatory cells, which subsequently remodel the tumor microenvironment. Accordingly, inhibition of CCR5 by a peptide antagonist reduced leukocyte infiltration and reduced tumor growth after subcutaneous injection of 410.4 mammary carcinoma cells into immunocompetent mice. Our recent microarray analysis of 2,254 human breast cancers demonstrated increased expression of CCL5 and its receptor CCR5, but not CCR3, in the basal and HER-2 genetic subtypes of breast cancer. Interrogation of pathways activated in patient normal breast vs. tumor identified up regulation of a CCR5 signaling module. At the same time, we also extended our research to prostate cancers. Using isogenic oncogene transformed breast and prostate cancer cell lines we show oncogene transformation induces CCR5 expression in breast and prostate epithelial cells. Further we show that the subpopulation of cells that express functional CCR5 display increased invasiveness. Studies in vivo demonstrated that CCR5 promoted metastasis homing. The FDA approved CCR5 antagonists Maraviroc or Vicriviroc, developed to block CCR5 HIV co-receptor function, reduced in vitro invasion of basal breast cancer and prostate cancer cell lines without affecting cell proliferation or viability. In a series of preclinical mouse models, used at equivalent doses to those used in treatment of humans for HIV, Maraviroc decreased breast pulmonary metastasis. The isogenic prostate cancer cell lines metastasized to bones in immune-competent mice representing an ideal model for testing anti-metastasis therapies. CCR5 was expressed in the metastasis in the bones. Maraviroc reduced prostate cancer metastasis to brain, bones and lungs. Our findings provide evidence for a key role of CCL5/CCR5 in the metastasis of basal breast cancer and prostate cancer cell lines and suggest that CCR5 antagonists may be used as an adjuvant therapy to reduce the risk of metastasis in patients with the basal breast cancer subtype and prostate cancer.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-04-04.
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Affiliation(s)
- RG Pestell
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - X Jiao
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - M Velasco
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - D Sicoli
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - X Ju
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - TG Pestll
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - A Ertel
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
| | - S Ando
- Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA; Faculty of Pharmacy, Nutrition, and Health Science, University of Calabria, Arcavacata di Rende, CS, Italy
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Sun X, Jiao X, Pestell TG, Fan C, Qin S, Mirabelli E, Ren H, Pestell RG. MicroRNAs and cancer stem cells: the sword and the shield. Oncogene 2013; 33:4967-77. [PMID: 24240682 DOI: 10.1038/onc.2013.492] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/11/2013] [Accepted: 10/11/2013] [Indexed: 12/18/2022]
Abstract
Emerging chemotherapy drugs and targeted therapies have been widely applied in anticancer treatment and have given oncologists a promising future. Nevertheless, regeneration and recurrence are still huge obstacles on the way to cure cancer. Cancer stem cells (CSCs) are capable of self-renewal, tumor initiation, recurrence, metastasis, therapy resistance, and reside as a subset in many, if not all, cancers. Therefore, therapeutics specifically targeting and killing CSCs are being identified, and may be promising and effective strategies to eliminate cancer. MicroRNAs (miRNAs, miRs), small noncoding RNAs regulating gene expression in a post-transcriptional manner, are dysregulated in most malignancies and are identified as important regulators of CSCs. However, limited knowledge exists for biological and molecular mechanism by which miRNAs regulate CSCs. In this article, we review CSCs, miRNAs and the interactions between miRNA regulation and CSCs, with a specific focus on the molecular mechanisms and clinical applications. This review will help us to know in detail how CSCs are regulated by miRNAs networks and also help to develop more effective and secure miRNA-based clinical therapies.
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Affiliation(s)
- X Sun
- 1] Oncology Department of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China [2] Departments of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - X Jiao
- Departments of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - T G Pestell
- Department of Stem Cell Biology and Regenerative Medicine, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - C Fan
- Cardiovascular Department of the Second Affiliated Hospital of Tianjin Medical University, Tianjin, China
| | - S Qin
- 1] Oncology Department of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China [2] New York University Medical Center, New York, NY, USA
| | - E Mirabelli
- Departments of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - H Ren
- Oncology Department of the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - R G Pestell
- Departments of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
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Yang N, Xie W, Jones CM, Bass C, Jiao X, Yang X, Liu B, Li R, Zhang Y. Transcriptome profiling of the whitefly Bemisia tabaci reveals stage-specific gene expression signatures for thiamethoxam resistance. Insect Mol Biol 2013; 22:485-96. [PMID: 23889345 PMCID: PMC4229068 DOI: 10.1111/imb.12038] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [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: 05/10/2023]
Abstract
Bemisia tabaci has developed high levels of resistance to many insecticides including the neonicotinoids and there is strong evidence that for some compounds resistance is stage-specific. To investigate the molecular basis of B. tabaci resistance to the neonicotinoid thiamethoxam we used a custom whitefly microarray to compare gene expression in the egg, nymph and adult stages of a thiamethoxam-resistant strain (TH-R) with a susceptible strain (TH-S). Gene ontology and bioinformatic analyses revealed that in all life stages many of the differentially expressed transcripts encoded enzymes involved in metabolic processes and/or metabolism of xenobiotics. Several of these are candidate resistance genes and include the cytochrome P450 CYP6CM1, which has been shown to confer resistance to several neonicotinoids previously, a P450 belonging to the Cytochrome P450s 4 family and a glutathione S-transferase (GST) belonging to the sigma class. Finally several ATP-binding cassette transporters of the ABCG subfamily were highly over-expressed in the adult stage of the TH-R strain and may play a role in resistance by active efflux. Here, we evaluated both common and stage-specific gene expression signatures and identified several candidate resistance genes that may underlie B. tabaci resistance to thiamethoxam.
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Affiliation(s)
- N Yang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - W Xie
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - CM Jones
- Liverpool School of Tropical Medicine, Vector GroupLiverpool, Merseyside, UK
| | - C Bass
- Biological Chemistry and Crop Protection Department, Rothamsted ResearchHarpenden, Hertfordshire, UK
| | - X Jiao
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - X Yang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - B Liu
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - R Li
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
| | - Y Zhang
- Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijing, China
- Correspondence: Youjun Zhang, Department of Entomology, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie, Haidian District, Beijing 100081, China. Tel: + 86 10 82109518; fax: + 86 10 82109518; e-mail:
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Jiao X, Qin C, Li J, Qin Y, Gao X, Zhang B, Zhen X, Feng Y, Simpson JL, Chen ZJ. Cytogenetic analysis of 531 Chinese women with premature ovarian failure. Hum Reprod 2012; 27:2201-7. [DOI: 10.1093/humrep/des104] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kao R, Rajagopalan A, Beckett A, Beckett A, Rex R, Shah S, Waddell J, Boitano M, Faidi S, Babatunde O, Lawson F, Grant A, Sudarshan M, Sudarshan M, Takashashi M, Waggott M, Lampron J, Post A, Beale E, Bobrovitz N, Zakrison T, Smith A, Bawazeer M, Evans C, Leeper T, Kagedan D, Grenier T, Rezendo-Neto J, Roberts D, Roberts D, Stark P, Berg R, Mehta S, Gardner P, Moore L, Vassilyadi M, Moore L, Moore L, Hoshizaki B, Rezende-Neto J, Slaba I, Ramesh A, Grigorovich A, Parry N, Pajak C, Rosenbloom B, Grunfeld A, van Heest R, Fernandes J, Doucet J, Schooler S, Ali J, Klassen B, Santana M, McFarlan A, Ball C, Blackmore C, Rezende-Neto J, Kidane B, Hicks C, Brennan M, Brennan M, Harrington A, Sorvari A, Stewart TC, Biegler N, Chaubey V, Tsang B, Benjamin S, Hogan A, Fraser J, Martin M, Bridge J, Faidi S, Waligora M, Hsiao M, Sharma S, Sankarankutty A, Mckee J, Mckee J, Mckee J, Snider C, Szpakowski J, Brown R, Shah S, Shiu M, Chen M, Bell N, Besserer F, Bell N, Trudeau MO, Alhabboubi M, Rezende-Neto J, Rizoli S, Hill A, Joseph B, Lawless B, Jiao X, Xenocostas A, Rui T, Parry N, Driman D, Martin C, Stewart TC, Walsh J, Parry N, Merritt N, Elster E, Tien H, Phillips L, Bratu I, Nascimento B, Pinto R, Callum J, Tien H, Rizoli S, McMullan J, McGlasson R, Mahomed N, Flannery J, Bir C, Baillie F, Coates A, Asiri S, Foster P, Baillie F, Bhandari M, Phillips L, Bratu I, Schuurman N, Oliver L, Nathens A, Yazdani A, Alhabboubi M, St. Louis E, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, St. Louis E, Alhabboubi M, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, Takada M, Sawano M, Ito H, Tsutsumi H, Keenan A, Waggott M, Hoshizaki B, Brien S, Gilchrist M, Janis J, Phelan H, Minei J, Santana M, Stelfox H, McCredie V, Leung E, Garcia G, Rizoli S, Nathens A, Dixon E, Niven D, Kirkpatrick A, Feliciano D, D’Amours S, Ball C, Ahmed N, Izadi H, McFarlan A, Nathens A, Pavenski K, Nathens A, Bridge J, Tallon J, Leeper W, Vogt K, Stewart TC, Gray D, Parry N, Ameer A, Alhabboubi M, Alzaid S, Deckelbaum D, Fata P, Khwaja K, Razek T, Deckelbaum D, Drudi L, Boulva K, Rodrigue N, Khwaja K, Chughtai T, Fata P, Razek T, Rizoli S, Carreiro P, Lisboa T, Winter P, Ribeiro E, Cunha-Melo J, Andrade M, Zygun D, Grendar J, Ball C, Robertson H, Ouellet JF, Cheatham M, Kirkpatrick A, Ball C, Ouellet JF, McBeth P, Kirkpatrick A, Dixon E, Groff P, Inaba K, Okoye O, Pasley J, Demetriades D, Al-Harthi F, Cheng A, Lalani A, Mikrogianakis A, Cayne S, Knittel-Keren D, Gomez M, Stelfox H, Turgeon A, Lapointe J, Bourgeois G, Karton C, Rousseau P, Hoshizaki B, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Rousseau P, Braga B, Faleiro R, Magaldi M, Cardoso G, Lozada W, Duarte L, Rizoli S, Ball C, Oddone-Paolucci E, Doig C, Kortbeek J, Gomez M, Fish J, Leach L, Leelapattana P, Fleming J, Bailey C, Nolan B, DeMestral C, McFarlan A, Zakirova R, Nathens A, Dabbs J, Duff D, Michalak A, Mitchell L, Nathens A, Singh M, Topolovec-Vranic J, Tymianski D, Yetman L, Canzian S, MacPhail I, Constable L, van Heest R, Tam A, Mahadevan P, Kim D, Bansal V, Casola G, Coimbra R, Gladwin C, Misra M, Kumar S, Gautam S, Sorvari A, Blackwood B, Coates A, Baillie F, Stelfox H, Nathens A, Wong C, Straus S, Haas B, Lenartowicz M, Parkovnick M, Parry N, Inaba K, Dixon E, Salim A, Pasley J, Kirkpatrick A, Ouellet JF, Niven D, Kirkpatrick A, Ball C, Neto C, Nogueira G, Fernandes M, Almeida T, de Abreu EMS, Rizoli S, Abrantes W, Taranto V, Parry N, Forbes T, Knight H, Keenan A, Yoxon H, Macpherson A, Bridge J, Topolovec-Vranic J, Mauceri J, Butorac E, Ahmed N, Holmes J, Gilliland J, Healy M, Tanner D, Polgar D, Fraser D, McBeth P, Crawford I, Tiruta C, Ball C, Kirkpatrick A, Roberts D, Ferri M, Bobrovitz N, Khandwala F, Stelfox H, Widder S, Mckee J, Hogan A, Benjamin S, Atkinson P, Benjamin S, Watson I, Hogan A, Benjamin S, Woodford S, Jaramillo DG, Nathens A, Alonazi N, Coates A, Baillie F, Zhang C, McFarlan A, Sorvari A, Chalklin K, Canzian S, Nathens A, DeMestral C, Hill A, Langer J, Nascimento B, Alababtain I, Fung SY, Passos E, Luz L, Brnjac E, Pinto R, Rizoli S, Widder S, Widder S, Widder S, Nathens A, Van Heest R, Constable L, Mancini F, Heidary B, Bell N, Appleton L, Hennecke P, Taunton J, Khwaja K, O’Connor M, Hameed M, Garraway N, Simons R, Evans D, Taulu T, Quinn L, Kuipers D, Rizoli S, Rogers C, Geerts W, Rhind S, Rizoli S, George K, Quinn L, Babcock C, Hameed M, Simons R, Caron N, Hameed M, Simons R, Prévost F, Razek T, Khwaja K, Sudarshan M, Razek T, Fata P, Deckelbaum D, Khwaja K, de Abreu EMS, Neto C, Almeida T, Pastore M, Taranto V, Fernandes M, Rizoli S, Nascimento B, Sankarankutty A, Pinto R, Callum J, Tremblay L, Tien H, Fowler R, Pinto R, Nathens A, Sadoun M, Harris J, Friese R, Kulvantunyou N, O’Keeffe T, Wynne J, Tang A, Green D, Rhee P, Trpkovski J, Blount V. Trauma Association of Canada Annual Scientific Meeting abstractsErythroopoietin resuscitated with normal saline, Ringer’s lactate and 7.5% hypertonic saline reduces small intestine injury in a hemorrhagic shock and resuscitation rat model.Analgesia in the management of pediatric trauma in the resuscitative phase: the role of the trauma centre.Multidisciplinary trauma team care in Kandahar, Afghanistan: current injury patterns and care practices.Does computed tomography for penetrating renal injury reduce renal exploration? An 8-year review at a Canadian level 1 trauma centre.The other side of pediatric trauma: violence and intent injury.Upregulation of activated protein C leads to factor V deficiency in early trauma coagulopathy.A provincial integrated model of improved care for patients following hip fracture.Sports concussion: an Olympic boxing model comparing sex with biomechanics and traumatic brain injury.A multifaceted quality improvement strategy to optimize monitoring and management of delirium in trauma patients: results of a clinician survey.Risk factors for severe all-terrain vehicle injuries in Alberta.Evaluating potential spatial access to trauma centre care by severely injured patients.Incidence of brain injury in facial fractures.Surgical outcomes and the acute care surgery service.The acute care general surgery population and prognostic factors for morbidity and mortality.Disaster preparedness of trauma.What would you like to know and how can we help you? Assessing the needs of regional trauma centres.Posttraumatic stress disorder screening for trauma patients at a level 1 trauma centre.Physical and finite element model reconstruction of a subdural hematoma event.Abdominal wall reconstruction in the trauma patient with an open abdomen.Development and pilot testing of a survey to measure patient and family experiences with injury care.Occult shock in trauma: What are Canadian traumatologists missing?Timeliness in obtaining emergent percutaneous procedures for the severely injured patient: How long is too long?97% of massive transfusion protocol activations do not include a complete hemorrhage panel.Trauma systems in Canada: What system components facilitate access to definitive care?The role of trauma team leaders in missed injuries: Does specialty matter?The adverse consequences of dabigatran among trauma and acute surgical patients.A descriptive study of bicycle helmet use in Montréal.Factor XIII, desmopressin and permissive hypotension enhance clot formation compared with normotensive resuscitation: uncontrolled hemorrhagic shock model.Negative pressure wound therapy for critically ill adults with open abdominal wounds: a systematic review.The “weekend warrior:” Fact or fiction for major trauma?Canadian injury preventon curriculum: a means to promote injury prevention.Penetrating splenic trauma: Safe for nonoperative management?The pediatric advanced trauma life support course: a national initiative.The effectiveness of a psycho-educational program among outpatients with burns or complex trauma.Trauma centre performance indicators for nonfatal outcomes: a scoping review.The evaluation of short track speed skating helmet performance.Complication rates as a trauma care performance indicator: a systematic review.Unplanned readmission following admission for traumatic injury: When, where and why?Reconstructions of concussive impacts in ice hockey.How does head CT correlate with ICP monitoring and impact monitoring discontinuation in trauma patients with a Marshall CT score of I–II?Impact of massive transfusion protocol and exclusion of plasma products from female donors on outcome of trauma patients in Calgary region of Alberta Health Services.Primary impact arthrodesis for a neglected open Weber B ankle fracture dislocation.Impact of depression on neuropsychological functioning in electrical injury patients.Predicting the need for tracheostomy in patients with cervical spinal cord injury.Predicting crumping during computed tomography imaging using base deficit.Feasibility of using telehomecare technology to support patients with an acquired brain injury and family care-givers.Program changes impact the outcomes of severely injured patients.Do trauma performance indicators accurately reflect changes in a maturing trauma program?One-stop falls prevention information for clinicians: a multidisciplinary interactive algorithm for the prevention of falls in older adults.Use of focused assessment with sonography for trauma (FAST) for combat casualties in forward facilities.Alberta All-terrain Vehicle Working Group: a call to action.Observations and potential role for the rural trauma team development course (RTTDC) in India.An electronic strategy to facilitate information-sharing among trauma team leaders.Development of quality indicators of trauma care by a consensus panel.An evaluation of a proactive geriatric trauma consultation service.Celebrity injury-related deaths: Is a gangster rapper really gangsta?Prevention of delirium in trauma patients: Are we giving thiamine prophylaxis a fair chance?Intra-abdominal injury in patients who sustain more than one gunshot wound to the abdomen: Should non-operative management be used?Retrospective review of blunt thoracic aortic injury management according to current treatment recommendations.Telemedicine for trauma resuscitation: developing a regional system to improve access to expert trauma care in Ontario.Comparing trauma quality indicator data between a pediatric and an adult trauma hospital.Using local injury data to influence injury prevention priorities.Systems saving lives: a structured review of pediatric trauma systems.What do students think of the St. Michael’s Hospital ThinkFirst Injury Prevention Strategy for Youth?An evidence-based method for targeting a shaken baby syndrome prevention media campaign.The virtual mentor: cost-effective, nurse-practitioner performed, telementored lung sonography with remote physician guidance.Quality indicators used by teaching versus nonteaching international trauma centres.Compliance to advanced trauma life support protocols in adult trauma patients in the acute setting.Closing the quality improvement loop: a collaborative approach.National Trauma Registry: “collecting” it all in New Brunswick.Does delay to initial reduction attempt affect success rates for anterior shoulder dislocation (pilot study)?Use of multidisciplinary, multi-site morbidity and mortality rounds in a provincial trauma system.Caring about trauma care: public awareness, knowledge and perceptions.Assessing the quality of admission dictation at a level 1 trauma centre.Trauma trends in older adults: a decade in review.Blunt splenic injury in patients with hereditary spherocytosis: a population-based analysis.Analysis of trauma team activation in severe head injury: an institutional experience.ROTEM results correlate with fresh frozen plasma transfusion in trauma patients.10-year trend of assault in Alberta.10-year trend in alcohol use in major trauma in Alberta.10-year trend in major trauma injury related to motorcycles compared with all-terrain vehicles in Alberta.Referral to a community program for youth injured by violence: a feasibility study.New impaired driving laws impact on the trauma population at level 1 and 3 trauma centres in British Columbia, Canada.A validation study of the mobile medical unit/polyclinic team training for the Vancouver 2010 Winter Games.Inferior vena cava filter use in major trauma: the Sunny-brook experience, 2000–2011.Relevance of cellular microparticles in trauma-induced coagulopathy: a systemic review.Improving quality through trauma centre collaboratives.Predictors of acute stress response in adult polytrauma patients following injury.Patterns of outdoor recreational injury in northern British Columbia.Risk factors for loss-to-follow up among trauma patients include functional, socio-economic, and geographic determinants: Would mandating opt-out consent strategies minimize these risks?Med-evacs and mortality rates for trauma from Inukjuak, Nunavik, Quebec.Review of open abdomens in McGill University Health Centre.Are surgical interventions for trauma associated with the development of posttraumatic retained hemothorax and empyema?A major step in understanding the mechanisms of traumatic coagulopathy: the possible role of thrombin activatable fibrinolysis inhibitor.Access to trauma centre care for patients with major trauma.Repeat head computed tomography in anticoagulated traumatic brain injury patients: still warranted.Improving trauma system governance. Can J Surg 2012. [DOI: 10.1503/cjs.006312] [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: 11/01/2022] Open
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Mi S, Zhang LM, Mao WP, Jiao X, Xue Y, Hang Y, Lü XH. [The evaluation of combined CT pulmonary and bronchial arteriography for the diagnosis of hemoptysis]. Zhonghua Jie He He Hu Xi Za Zhi 2012; 35:42-44. [PMID: 22455942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To establish the method of multi-slice spiral CT pulmonary angiography (CTPA)combined with bronchial angiography (CTBA) and to evaluate its value for diagnosis and treatment in hemoptysis. METHODS After contrast material was administered intravenously, a 16-detector row helical CT scanner (Light Speed Ultra 16; GE Medical Systems) was used to complete CTPA first with a scan delay time of 12 - 16 s. Then CTBA was carried out, with a scan delay time of 26 - 28 s. The images were reformatted to evaluate the pulmonary artery and bronchial artery (BA). RESULTS In 36 cases of hemoptysis, CTPA showed 7 pulmonary arterial abnormalities (3 cases with pulmonary embolism, 4 cases with one of pulmonary artery abnormity, primary pulmonary artery leiomyosarcoma, loss of sharpness of pulmonary artery or occlusion of right-inferior lung artery). In the 36 cases, CTBA showed 37 right BAs (11 tortuosity and thickening), 40 left right BAs (10 tortuosity and thickening) and 3 non-bronchial systemic arteries (1 from abdominal aorta tortuosity and thickening). Abnormal vessels had a close relation with pulmonary diseases. CONCLUSIONS With this method CTPA and CTBA can be completed in a single procedure and abnormal pulmonary arteries and bronchial arteries can be shown clearly. This procedure maybe of important value for the diagnosis and treatment of hemoptysis.
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Affiliation(s)
- Song Mi
- Affiliated Beijing ChaoYang Hospital of Capital Medical University Beijing Institute of Respiratory Medicine, Beijing 100043, China
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Zhang Q, Jia L, Jiao X, Guo W, Ji J, Yang H, Niu Q. APP/PS1 Transgenic Mice Treated with Aluminum: An Update of Alzheimer's Disease Model. Int J Immunopathol Pharmacol 2012; 25:49-58. [DOI: 10.1177/039463201202500107] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
There is still no animal model available that can mimic all the cognitive, behavioral, biochemical, and histopathological abnormalities observed in patients with Alzheimer's disease (AD). We undertook to consider the interaction between genetic factors, including amyloid precursor protein (APP) and presenilin-1 (PS1), and environmental factors, such as Aluminum (Al) in determining susceptibility outcomes when studying the pathogenesis of AD. In this article, we provide an AD model in APP/PS1 transgenic mice triggered by Al. The animal model was established via intracerebral ventricular microinjection of aluminum chloride once a day for 5 days in APP/PS1 transgenic mice. Twenty wild type (WT) mice and 20 APP/PS1 transgenic (TG) mice were separately divided into 2 groups (control and Al group), and a stainless steel injector with stopper was used for microinjection into the left-lateral cerebral ventricle of each mouse. The Morris water maze task was used to evaluate behavioral function of learning and memory ability on the 20th day after the last injection. This AD model's brain was analyzed by: (1) amyloid β immunohistochemical staining; (2) Tunnel staining; (3) apoptotic rates; (4) caspase-3 gene expression. Here, decrease of cognitive ability and neural cells loss were shown in APP/PS1 transgenic mice exposed to Al, which were more extensive than those in APP/PS1 TG alone and WT mice exposed to Al alone. These findings indicate that there is a close relationship between over-expression of APP and PS1 genes and Al overload. It is also suggested that APP/PS1 TG mice exposed to Al have potential value for improving AD models.
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Affiliation(s)
- Q.L. Zhang
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - L. Jia
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - X. Jiao
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - W.L. Guo
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - J.W. Ji
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
| | - H.L. Yang
- The First Affiliated Hospital of Shanxi Medical University, Taiyuan, China
| | - Q. Niu
- Ministry of Education Key Laboratory, Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan, China
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Jiang L, Zhang H, Xie J, Jiao X, Zhou H, Ji H, Lai TYY, Wang N. Application of multifocal visual evoked potentials in the assessment of visual dysfunction in macular diseases. Eye (Lond) 2011; 25:1302-9. [PMID: 21720415 DOI: 10.1038/eye.2011.153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To evaluate the use of AccuMap multifocal visual evoked potentials (mfVEP) in visual dysfunction caused by macular diseases. METHODS Forty-eight eyes with known macular diseases underwent AccuMap mfVEP and microperimetry 1 (MP1) assessments. Evaluation of mfVEP abnormality was based on an amplitude deviation probability plot and the AccuMap Severity Index (ASI). Correlation analyses of the mean mfVEP amplitude corresponding to a radius of 2°, 5°, and 10° of the central visual field, minimum angle of resolution best-corrected visual acuity (BCVA), and MP1 mean sensitivity of the corresponding areas were performed. RESULTS Among the 48 affected eyes, AccuMap mfVEP detected an abnormality of the central visual field in 45 eyes, with a sensitivity of 93.8%. The mean mfVEP amplitudes within a radius of 2°, 5°, and 10° of the central visual field were found to be positively correlated with BCVA (P<0.01 for all groups). The mean amplitudes also positively correlated with the MP1 mean sensitivity value of the corresponding visual field (P<0.01 for all groups). In the group with stable fixation or predominantly central fixation, the mean mfVEP amplitudes did not correlate with the BCVA or the MP1 mean sensitivity value. Regardless of the fixation status, the ASI was found to correlate with both the BCVA and the total MP1 mean defect value. CONCLUSION Objective perimetry using AccuMap mfVEP might be applied in the assessment of macular function, with the ASI offering a potentially useful indicator for evaluating macular dysfunction.
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Affiliation(s)
- L Jiang
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Lab, Beijing, China
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An L, Yang T, Zhang Y, Lin Y, Zhang H, Jiao X, Hua L, Dai H, Wang C. Association of SERPINE2 gene with the risk of chronic obstructive pulmonary disease and spirometric phenotypes in northern Han Chinese population. Mol Biol Rep 2011; 39:1427-33. [PMID: 21611750 DOI: 10.1007/s11033-011-0877-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2011] [Accepted: 05/14/2011] [Indexed: 12/23/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) is a complex human disease influenced by multiple genes and environmental factors. The SERPINE2 gene has recently been demonstrated to be associated with COPD onset in a non-East Asian population. In this study, we genotyped 20 single nucleotide polymorphisms (SNPs) in SERPINE2 from 310 cases and 203 controls, all of which belong to the Han from North China. Genotype frequencies were compared between the cases and the controls and analyzed for statistical significance. Two SNPs (rs729631 and rs975278), which are in strong linkage disequilibrium (LD) and locate in block 1 on the LD map of our samples, showed significant association both with the risk of COPD and decline in baseline lung function after Bonferroni correction (P < 0.05). This study provides further evidences for SERPINE2 gene as a COPD susceptible gene, and block 1 of SERPINE2 appears to be the genetic variant region that affects the Han Chinese.
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Affiliation(s)
- Li An
- Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Institute of Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, No 8, Gongren Tiyuchang Nanlu, Chao-yang District, Beijing 100020, China
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Zhang H, Wen K, Shen J, Geng S, Huang J, Pan Z, Jiao X. Characterization of immune responses following intranasal immunization with the Mycobacterium bovis CFP-10 protein expressed by attenuated Salmonella typhimurium. Scand J Immunol 2010; 72:277-83. [PMID: 20883312 DOI: 10.1111/j.1365-3083.2010.02421.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Culture filtrate protein 10 (CFP-10) from Mycobacterium bovis or Mycobacterium tuberculosis (MTB) is an immunodominant T-cell antigen expressed during the early stages of infection. Because lungs are most commonly associated with primary M. bovis infections, specific immunity at this site is desirable for protection. Therefore, in this study, immune responses generated in mouse lung, spleen and Peyer's patches were examined following intranasal (i.n.) immunization with Salmonella typhimurium- expressing CFP-10. Cells harvested from the lungs and Peyer's patches of immunized mice and then stimulated with CFP-10 produced significant levels of IFN-γ and these mice developed elevated serum IgG and lung IgA anti-CFP-10 responses, suggesting that this approach induced potent anti-CFP-10 mucosal immunity. Our study demonstrates that i.n. administration of CFP-10 expressed by S. typhimurium represents an effective way to induce efficient immune response to M. bovis antigen.
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Affiliation(s)
- H Zhang
- Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou, Jiangsu, China
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An L, Lin YX, Yang T, Zhang H, Jiao X, Zhang S, Chang XH, Wang ZM, Wang C. Predictive validity of BODE index for anxious and depressive symptoms in patients with chronic obstructive pulmonary disease. Chin Med J (Engl) 2010; 123:1845-1851. [PMID: 20819566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Anxiety and depression are two of the commonest and most modifiable comorbidities of chronic obstructive pulmonary disease (COPD) and have an independent effect on health and prognosis. FEV1% has been shown to be a poor predictor of anxiety and depression. The body mass index, degree of airflow obstruction, dyspnea, and exercise capacity (BODE) index is a multidimensional assessment system which may predict health outcome in COPD patients. The purpose of this study was to investigate the predictive validity of the BODE index for anxious and depressive symptoms in COPD patients. METHODS This was a multicenter prospective cross-sectional study in 256 patients with stable COPD. Anxious and depressive symptoms were assessed using the Hospital Anxiety and Depression Scale (HADS). The relationships between anxiety, depression and potential predictors (including the BODE index) were analyzed by a binary Logistic regression model. RESULTS Subjects who were anxious and depressive walked a shorter six-minute walking distance (6MWD), had more dyspnea, a higher BODE index, and lower health-related quality of life (P < 0.01). Anxiety and depression score was significantly correlated with BODE index, respectively (r = 0.335, P < 0.001; r = 0.306, P < 0.001). The prevalence of anxiety and depression increased with BODE stage increasing (P < 0.05). On the basis of binary Logistic regression, the BODE index was a good and independent predictor of anxiety and depression because it comprised dyspnea and 6MWD, which were shown to be the main determinants. CONCLUSIONS The predictive validity of the BODE index for anxiety and depression was demonstrated. We propose that the BODE index should be included in assessment of COPD severity.
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Affiliation(s)
- Li An
- Beijing Institute of Respiratory Medicine, Beijing Chao Yang Hospital, Capital Medical University, Beijing 100020, China
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Mukhopadhyay MK, Lurio LB, Jiang Z, Jiao X, Sprung M, DeCaro C, Sinha SK. Measurement of the interior structure of thin polymer films using grazing incidence diffuse x-ray scattering. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 82:011804. [PMID: 20866641 DOI: 10.1103/physreve.82.011804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Indexed: 05/29/2023]
Abstract
A method is developed for calculating the small-angle x-ray scattering originating from within the interior of a thin film under grazing incidence illumination. This offers the possibility of using x-ray scattering to probe how the structure of polymers is modified by confinement. When the diffuse scattering from a thin film is measured over a range of incident angles, it is possible to separate the contributions to scattering from the interfaces and the contribution from the film interior. Using the distorted-wave Born approximation the structure factor, S(q), of the film interior can then be obtained. We apply this method to analyze density fluctuations from within the interior of a silicon supported molten polystyrene (PS) film. Measurements were made as a function of film thickness ranging from one to ten times the polymer radius of gyration (Rg). The compressibility, calculated by extrapolating the measured S(q) to q=0, agrees well with that of bulk PS for thick films, but thinner films exhibit a peak in S(q) near q=0. This peak, which grows with decreasing thickness, is attributed to a decreased interpenetration of chains and a consequent enhanced compressibility.
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Affiliation(s)
- M K Mukhopadhyay
- Department of Physics, University of California-San Diego, La Jolla, California 92093, USA
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Carson JP, Kuprat AP, Jiao X, Del Pin F, Einstein DR. An Anisotropic Fluid-Solid Model of the Mouse Heart. Comput Cardiol 2009; 36:377-380. [PMID: 31527991 PMCID: PMC6746410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A critical challenge in biomechanical simulations is the spatial discretization of complex fluid-solid geometries created from imaging. This is especially important when dealing with Lagrangian interfaces, as there must be at a minimum both geometric and topological compatibility between fluid and solid phases, with exact matching of the interfacial nodes being highly desirable. We have developed a solution to this problem and applied the approach to the creation of a 3D fluid-solid mesh of the mouse heart. First, a 50 micron isotropic MRI dataset of a perfusion-fixed mouse heart was segmented into blood, tissue, and background using a customized multimaterial connected fuzzy thresholding algorithm. Then, a multimaterial marching cubes algorithm was applied to produce two compatible isosurfaces, one for the blood-tissue boundary and one for the tissue-background boundary. A multimaterial smoothing algorithm that rigorously conserves volume for each phase simultaneously smoothed the isosurfaces. Next we applied novel automated meshing algorithms to generate anisotropic hybrid meshes with the number of layers and the desired element anisotropy for each material as the only input parameters. As the meshes are scale-invariant within a material and include boundary layer prisms, fluid-structure interaction computations would have a relative error equilibrated over the entire mesh. The resulting model is highly detailed mesh representation of the mouse heart, including features such as chordae and coronary vasculature, that is also maximally efficient to produce the best simulation results for the computational resources available.
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Affiliation(s)
- J P Carson
- Pacific Northwest National Laboratory, Richland, WA, USA
| | - A P Kuprat
- Pacific Northwest National Laboratory, Richland, WA, USA
| | - X Jiao
- Stony Brook University, Stony Brook, NY, USA
| | - F Del Pin
- Livermore Software Technology Corporation, Livermore, CA, USA
| | - D R Einstein
- Pacific Northwest National Laboratory, Richland, WA, USA
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48
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Zhao X, Jiao X, Xia M, Liu Q, Zhang J. [Determination of five biogenic amines in source water by ion chromatography]. Se Pu 2009; 27:505-508. [PMID: 19938513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
An ion chromatographic (IC) method was developed for the separation of five biogenic amines (BAs), including putrescine, cadaverine, histamine, spermidine and spermine, in source water. The sample was separated on a TSK-GEL SuperIC cation exchange column (150 mm x 4.6 mm) after filtering treatment by 0.45 microm inorganic membrane. Methanesulfonic acid was used as eluent for concentration gradient elution at the rate of 1.0 mL/min. The injection volume was 100 microL and the BAs were detected by a non-suppressed conductivity detector. The result showed that the baseline separation was obtained for the 5 kinds of BAs. The linear relationships between the concentration and the peak area were obtained in the concentration range of 1.0 - 30.0 mg/L. The relative standard deviations (RSDs) of retention time and peak area were no more than 0.02% and 2.08%, respectively. The recoveries were from 96.0% to 107.0%. The method is simple, rapid, highly sensitive and with good repeatability. It could be used for the determination the BAs in the source water.
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Affiliation(s)
- Xinying Zhao
- Beijing Center for Physical and Chemical Analysis, Beijing, China.
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49
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Hu T, Shi J, Jiao X, Zhou J, Yin X. Measurement of annexin V uptake and lactadherin labeling for the quantification of apoptosis in adherent Tca8113 and ACC-2 cells. Braz J Med Biol Res 2009; 41:750-7. [PMID: 18820763 DOI: 10.1590/s0100-879x2008000900002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2008] [Accepted: 08/06/2008] [Indexed: 11/21/2022] Open
Abstract
Phosphatidylserine (PS) exposure occurs during the cell death program and fluorescein-labeled lactadherin permits the detection of PS exposure earlier than annexin V in suspended cell lines. Adherent cell lines were studied for this apoptosis-associated phenomenon to determine if PS probing methods are reliable because specific membrane damage may occur during harvesting. Apoptosis was induced in the human tongue squamous carcinoma cell line (Tca8113) and the adenoid cystic carcinoma cell line (ACC-2) by arsenic trioxide. Cells were harvested with a modified procedure and labeled with lactadherin and/or annexin V. PS exposure was localized by confocal microscopy and apoptosis was quantified by flow cytometry. The detachment procedure without trypsinization did not induce cell damage. In competition binding experiments, phospholipid vesicles competed for more than 95 and 90% of lactadherin but only about 75 and 70% of annexin V binding to Tca8113 and ACC-2 cells. These data indicate that PS exposure occurs in three stages during the cell death program and that fluorescein-labeled lactadherin permitted the detection of early PS exposure. A similar pattern of PS exposure has been observed in two malignant cell lines with different adherence, suggesting that this pattern of PS exposure is common in adherent cells. Both lactadherin and annexin V could be used in adherent Tca8113 and ACC-2 cell lines when an appropriate harvesting procedure was used. Lactadherin is more sensitive than annexin V for the detection of PS exposure as the physical structure of PS in these blebs and condensed apoptotic cell surface may be more conducive to binding lactadherin than annexin V.
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Affiliation(s)
- T Hu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Harbin Medical University, Harbin, China
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50
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Mukhopadhyay MK, Jiao X, Lurio LB, Jiang Z, Stark J, Sprung M, Narayanan S, Sandy AR, Sinha SK. Thickness induced structural changes in polystyrene films. Phys Rev Lett 2008; 101:115501. [PMID: 18851293 DOI: 10.1103/physrevlett.101.115501] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Revised: 07/17/2008] [Indexed: 05/26/2023]
Abstract
Changes to the structure of polystyrene melt films as measured through the spectrum of density fluctuations have been observed as a function of film thickness down to the polymer radius of gyration (Rg). Films thicker than 4Rg show bulklike density fluctuations. Thinner films exhibit a peak in S(q) near q=0 which grows with decreasing thickness. This peak is attributed to a decreased interpenetration of chains resulting in an enhanced compressibility. Measurements were made using small angle x-ray scattering in a standing wave geometry designed to enhance scattering from the interior of the film compared to interface scattering.
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Affiliation(s)
- M K Mukhopadhyay
- Department of Physics, University of California San Diego, La Jolla, California 92093, USA
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