101
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Hao ZQ, Liu L, Shen M, Yang XY, Li KH, Guo LB, Li XY, Lu YF, Zeng XY. Investigation on self-absorption at reduced air pressure in quantitative analysis using laser-induced breakdown spectroscopy. Opt Express 2016; 24:26521-26528. [PMID: 27857385 DOI: 10.1364/oe.24.026521] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The self-absorption at reduced air pressure for quantitative analysis of Mn and Cu elements in steel using laser-induced breakdown spectroscopy was investigated. The calibration curves of Mn and Cu elements at the air pressures of 100, 80, 50, 20, and 1 kPa were studied. The results show that, the nonlinearity of calibration curves which caused by self-absorption effects at atmosphere could be significantly improved by reducing the air pressure to 1 kPa, and the coefficients of determination (R2) of linear calibration curves of Mn and Cu lines are all higher than 0.99. The further study explored that the reason for the improvement was that the induced plasma became low density and the self-absorption coefficient was close to 1 when the air pressure reduced to 1 kPa.
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102
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Butz ES, Ben-Johny M, Shen M, Yang PS, Sang L, Biel M, Yue DT, Wahl-Schott C. Quantifying macromolecular interactions in living cells using FRET two-hybrid assays. Nat Protoc 2016; 11:2470-2498. [DOI: 10.1038/nprot.2016.128] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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103
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Du C, Xu Y, Yang K, Chen S, Wang X, Wang S, Wang C, Shen M, Chen F, Chen M, Zeng D, Li F, Wang T, Wang F, Zhao J, Ai G, Cheng T, Su Y, Wang J. Estrogen promotes megakaryocyte polyploidization via estrogen receptor beta-mediated transcription of GATA1. Leukemia 2016; 31:945-956. [DOI: 10.1038/leu.2016.285] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 09/13/2016] [Accepted: 09/14/2016] [Indexed: 12/21/2022]
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104
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Shen M, Capoulade R, Tastet L, Clavel M, Bédard É, Arsenault M, Chetaille P, Tizon-Marcos H, Le Ven F, Pibarot P, Larose E. LEFT VENTRICLE NON-COMPACTION IN PATIENTS WITH A BICUSPID AORTIC VALVE. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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105
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An N, Li X, Shen M, Chen SL, Huang ZX. [A clinical analysis of 69 newly diagnosed multiple myeloma patients with renal insufficiency]. Zhonghua Nei Ke Za Zhi 2016; 55:764-768. [PMID: 27686436 DOI: 10.3760/cma.j.issn.0578-1426.2016.10.008] [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: 06/06/2023]
Abstract
Objective: To investigate the efficacy and outcome in newly diagnosed multiple myeloma (MM) patients with renal insufficiency using bortezomib- or thalidomide-based regimens as front line treatment. Method: Sixty-nine newly diagnosed MM patients with renal insufficiency were retrospectively analyzed from August 2006 to August 2014. Results: ① Among thirty-nine patients with bortezomib based regimens (the bortezomib group), the overall response rate (ORR) was 89.7% and complete response (CR) plus near CR(nCR) rate was 41.0%. By contrast, among thirty patients with thalidomide based regimens (the thalidomide group), the ORR was 83.3% and CR+ nCR rate was 26.7%. There was no significant difference of either ORR or CR+ nCR rate between bortezomib and thalidomide groups. ② The improvement rate of renal function in bortezomib group and thalidomide group were 87.2% and 60.0% respectively (P=0.012). The median duration time of renal injury was 45 days in 52 patients with renal function improved, which was significantly shorter compared with 222 days in 17 patients without improvement (P<0.05). There was no difference of median serum creatinine and creatinine clearance rate between the two groups.③ The median progression-free survival (PFS) and the overall survival (OS) were 18 and 33.5 months, respectively in all patients. The three-year and five-year OS rates were 57% and 17%, respectively. The median PFS was 19 months in bortezomib group, while it was only 12 months in thalidomide group (P=0.023). The median OS were 36.5 months and 25.5 months respectively, which was no difference (P=0.285). Conclusions: The newly diagnosed MM patients with renal insufficiency could get higher ORR and the longer PFS using bortezomib-containing regimens as initial therapy. Meanwhile the improvement rate of renal function and the living quality in patients with bortezomib are better compared with those with thalidomide based treatment.
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Affiliation(s)
- N An
- Department of Hematology and Oncology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100043, China
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106
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Tastet L, Capoulade R, Shen M, Clavel M, Côté N, Mathieu P, Arsenault M, Bédard É, Beaudoin J, Bernier M, Dumesnil J, Després J, Pibarot P. HIGHER APOLIPOPROTEIN B / APOLIPOPROTEIN A-I RATIO IS ASSOCIATED WITH FASTER HEMODYNAMIC PROGRESSION OF AORTIC STENOSIS IN YOUNGER PATIENTS - RESULTS FROM THE PROGRESSA STUDY-. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.402] [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] Open
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107
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Tastet L, Pibarot P, Capoulade R, Maalouf J, Araoz P, Simard L, Shen M, Michelena H, Larose É, Arsenault M, Bédard É, Sarano M, Clavel M. RELATIONSHIP BETWEEN AORTIC VALVE CALCIFICATION AND HEMODYNAMIC PROGRESSION OF AORTIC STENOSIS: RESULTS FROM AN INTERNATIONAL REGISTRY STUDY. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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108
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Côté N, Simard L, Zenses A, Tastet L, Shen M, Clavel M. IMPACT OF VASCULAR BURDEN IN AORTIC STENOSIS SEVERITY ASSESSMENT OF NORMAL FLOW-LOW GRADIENT PATIENTS. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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109
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Ding Z, Meng Q, Liu H, Yuan S, Zhang F, Sun M, Zhao Y, Shen M, Zhou G, Pan J, Xue H, Wang W. First case of hepatopancreatic necrosis disease in pond-reared Chinese mitten crab, Eriocheir sinensis, associated with microsporidian. J Fish Dis 2016; 39:1043-1051. [PMID: 26850704 DOI: 10.1111/jfd.12437] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 06/05/2023]
Abstract
An epidemic of hepatopancreatic necrosis disease (HPND) with a high mortality rate (40%-50%) recently occurred in the cultured Chinese mitten crab, Eriocheir sinensis, which is a very important economic crustacean species in China. Histology revealed infection by a microsporidian parasite within the cytoplasm of the epithelial cells of the hepatopancreas. Numerous discrete inclusions in the infected cells and presumably free parasite spores were also observed. By negative staining using electron microscopy, a typical morphology of spores was observed with a protuberant front of the anchoring disc. Infection was confined to the epithelial cells of the hepatopancreas, with no other organ implicated. By sequencing the PCR products using specific primers based on conserved regions of microsporidian small subunit (18S) ribosomal DNA, it was revealed that the parasite from HPND ponds had 99% sequence identity to that of Hepatospora eriocheir. Phylogentic analysis also placed the microsporidian in the same lineage as H. eriocheir. This study reported the first case of widespread infections of H. eriocheir associated with HPND found in the pond-reared Chinese mitten crab, E. sinensis. The description of microsporidian in this important commercial host is fundamental for future consideration of factors affecting stock health and sustainability.
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Affiliation(s)
- Z Ding
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - Q Meng
- Jiangsu Key Laboratory for Biodiversity & Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - H Liu
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - S Yuan
- Jiangsu Agri-animal Husbandry Vocational College, Taizhou, China
| | - F Zhang
- Aquaculture Promotion Centers of Xinghua City, Xinghua, China
| | - M Sun
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - Y Zhao
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - M Shen
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - G Zhou
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - J Pan
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - H Xue
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing, China
| | - W Wang
- Jiangsu Key Laboratory for Biodiversity & Biotechnology and Jiangsu Key Laboratory for Aquatic Crustacean Diseases, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Gan G, Bhat A, Aladdin A, Shen M, Eshoo S, Hsu C, Tan T. Comparison Between Left Ventriculography (LVG) and Transthoracic Echocardiography (TTE) in Assessment of Left Ventricular Size (LVS) and Systolic Function (LVF) - An Australian Centre Study. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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111
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Abstract
The active 'oddball' event-related potential (ERP) P3 is elongated or reduced in migraine and tension-type headaches, indicating a deficit of active attention in these primary headaches. It is then reasonable to study the passive attention function in these headaches through the technology of passive paradigm singletone elicited ERPs. We invited 32 patients suffering from chronic tension-type headache (CTTH), 17 from frequent episodic tension-type headache (FETH) and 32 from interictal migraine without aura, as well as 28 healthy subjects to undergo passive paradigm single-tone ERPs. There were no statistically significant differences when the mean latencies and amplitudes of N1, P2, N2 or the mean latencies of P3 of the four groups were considered. In contrast, the P3 amplitudes were significantly reduced in the patient groups when compared with healthy controls. However, no further significant difference was found between patient groups when considering P3 amplitude. Our study demonstrated a deficit of passive attention in CTTH, FETH and migraine, but could not separate these headache types in this regard. The reduced P3 in patients might be due to the head pain experienced.
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Affiliation(s)
- W Chen
- Department of Clinical Psychology and Psychiatry, Zhejiang University, Hangzhou, China
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112
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Yang XY, Hao ZQ, Li CM, Li JM, Yi RX, Shen M, Li KH, Guo LB, Li XY, Lu YF, Zeng XY. Sensitive determinations of Cu, Pb, Cd, and Cr elements in aqueous solutions using chemical replacement combined with surface-enhanced laser-induced breakdown spectroscopy. Opt Express 2016; 24:13410-13417. [PMID: 27410358 DOI: 10.1364/oe.24.013410] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, chemical replacement combined with surface-enhanced laser-induced breakdown spectroscopy (CR-SENLIBS) was for the first time applied to improve the detection sensitivities of trace heavy metal elements in aqueous solutions. Utilizing chemical replacement effect, heavy metal ions in aqueous solution were enriched on the magnesium alloy surface as a solid replacement layer through reacting with the high chemical activity metallic magnesium (Mg) within 1 minute. Unitary and mixed solutions with Cu, Pb, Cd, and Cr elements were prepared to construct calibration curves, respectively. The CR-SENLIBS showed a much better detection sensitivity and accuracy for both unitary and mixed solutions. The coefficients of determination R2 of the calibration curves were above 0.96, and the LoDs were of the same order of magnitude, i.e., in the range of 0.016-0.386 μg/mL for the unitary solution, and in the range of 0.025-0.420 μg/mL for the mixed solution. These results show that CR-SENLIBS is a feasible method for improving the detection sensitivity of trace element in liquid sample, which definitely provides a way for wider application of LIBS in water quality monitoring.
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113
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Deng X, Cheng J, Shen M. Vitamin D improves diabetic nephropathy in rats by inhibiting renin and relieving oxidative stress. J Endocrinol Invest 2016; 39:657-66. [PMID: 26691308 DOI: 10.1007/s40618-015-0414-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/22/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND It is well established that the activation of the renin-angiotensin system (RAS) and the oxidative stress caused by hyperglycemia are major mediators of the development and progression of diabetic nephropathy (DN). Vitamin D may be important in maintaining podocyte health, preventing epithelial-to-mesenchymal transformation, and suppressing renin gene expression and inflammation, but its mechanism requires clarification. This study evaluated the specific mechanism of vitamin D to DN improvement. METHODS We induced a rat model of diabetes with an intraperitoneal injection of streptozotocin (60 mg/kg). The streptozotocin-induced diabetic rats were fed normal chow for about 2 months to induce the DN model. The DN rats were then treated with irbesartan and/or calcitriol, administered intragastrically about 1 month. RESULTS The rats displayed the early characteristics of DN, including increased microalbuminuria, obvious hypertrophic kidney, and a markedly increased kidney weight/bodyweight ratio. Vitamin D inhibited the compensatory increase in renin expression. Malondialdehyde, which reflects oxidative stress levels, was elevated in the DN group rats and their antioxidant capacity was significantly reduced. The irbesartan and calcitriol interventions markedly improved the renal pathology and pathophysiological changes. Irbesartan combined with vitamin D (calcitriol) more effectively ameliorated DN than irbesartan alone. CONCLUSIONS Vitamin D combined with angiotensin II type 1 receptor blockers exerts a synergistic effect on the treatment of DN, not only by inhibiting renin but also by reducing oxidative stress and increasing the renal antioxidant capacity.
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Affiliation(s)
- X Deng
- Department of Endocrinology, Wuhan Third Hospital, Wuhan University, 430062, Wuhan, China.
| | - J Cheng
- Department of Endocrinology, Changzhou No. 2 People's Hospital, Nanjing Medical University, 213003, Changzhou, China
| | - M Shen
- Department of Endocrinology, Changzhou No. 2 People's Hospital, Nanjing Medical University, 213003, Changzhou, China
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114
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Affiliation(s)
- Arash Velayati
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
| | - Marcos G. Valerio
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
| | - Michael Shen
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
| | - Sohaib Tariq
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
| | - Gregg M. Lanier
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
| | - Wilbert S. Aronow
- Department of Medicine, Division of Cardiology, Westchester Medical Center/New York Medical College, Valhalla, NY, USA
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115
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Abstract
BACKGROUND The human prostate tumor suppressor NKX3.1 mediates the DNA repair response and interacts with the androgen receptor to assure faithful completion of transcription thereby protecting against TMPRSS2-ERG gene fusion. To determine directly the effect of Nkx3.1 in vivo we studied the DNA repair response in prostates of mice with targeted deletion of Nkx3.1. METHODS Using both drug-induced DNA damage and γ-irradiation, we assayed expression of γ-histone 2AX at time points up to 24 hr after induction of DNA damage. RESULTS We demonstrated that expression of Nkx3.1 influenced both the timing and magnitude of the DNA damage response in the prostate. CONCLUSIONS Nkx3.1 affects the DNA damage response in the murine prostate and is haploinsufficient for this phenotype.
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Affiliation(s)
- Hailan Zhang
- Department of Medicine and PathologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
| | - Tian Zheng
- Department of Medicine and PathologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
- Department of StatisticsColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
| | - Chee Wai Chua
- Department of Medicine and PathologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
- Department of Developmental and Cell BiologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
| | - Michael Shen
- Department of Medicine and PathologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
- Department of Developmental and Cell BiologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
| | - Edward P. Gelmann
- Department of Medicine and PathologyColumbia University Medical CenterHerbert Irving Comprehensive Cancer CenterColumbia UniversityNew York CityNew York
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Caplan AL, Plunkett C, Parent B, Shen M. Response by Caplan et al. EMBO Rep 2016; 17:283. [PMID: 26882556 DOI: 10.15252/embr.201642023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Arthur L Caplan
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA
| | - Carolyn Plunkett
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA Philosophy Department, The Graduate Center CUNY, New York, NY, USA
| | - Brendan Parent
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA
| | - Michael Shen
- Institute for Systems Genetics, New York University Langone Medical Center, New York, NY, USA
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117
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Guo J, Ma M, Qu L, Shen M, Dou T, Wang K. Estimation of genetic parameters related to eggshell strength using random regression models. Br Poult Sci 2016; 56:645-50. [DOI: 10.1080/00071668.2015.1113503] [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: 10/22/2022]
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118
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119
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Chen I, Shen M, Singh SS, Lalani S, Wen SW. The Association Between Surgically-Diagnosed Endometriosis and Adverse Pregnancy Outcomes. J Minim Invasive Gynecol 2015; 22:S72-S73. [DOI: 10.1016/j.jmig.2015.08.193] [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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120
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Caplan AL, Parent B, Shen M, Plunkett C. No time to waste--the ethical challenges created by CRISPR: CRISPR/Cas, being an efficient, simple, and cheap technology to edit the genome of any organism, raises many ethical and regulatory issues beyond the use to manipulate human germ line cells. EMBO Rep 2015; 16:1421-6. [PMID: 26450575 DOI: 10.15252/embr.201541337] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Arthur L Caplan
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA
| | - Brendan Parent
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA
| | - Michael Shen
- Institute for Systems Genetics, New York University Langone Medical Center, New York, NY, USA
| | - Carolyn Plunkett
- Division of Medical Ethics, New York University Langone Medical Center, New York, NY, USA Philosophy Department, The Graduate Center CUNY, New York, NY, USA
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121
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Tastet L, Capoulade R, Larose E, Dumesnil J, Shen M, Dahou A, Arsenault M, Bédard E, Després J, Mathieu P, Clavel M, Pibarot P. SYSTOLIC HYPERTENSION AND PROGRESSION OF AORTIC VALVE CALCIFICATION IN PATIENTS WITH AORTIC STENOSIS - RESULTS FROM THE PROGRESSA STUDY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.154] [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] Open
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122
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Tomlinson JR, Fallis J, Laird AM, Fox SP, Akers C, Alcorta M, Bentley MA, Christian G, Davids B, Davinson T, Fulton BR, Galinski N, Rojas A, Ruiz C, de Séréville N, Shen M, Shotter AC. Measurement of 23Na(α,p)26Mg at Energies Relevant to 26Al Production in Massive Stars. Phys Rev Lett 2015; 115:052702. [PMID: 26274415 DOI: 10.1103/physrevlett.115.052702] [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] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Indexed: 06/04/2023]
Abstract
26Al is an important radioisotope in astrophysics that provides evidence of ongoing nucleosynthesis in the Galaxy. The 23Na(α, p)26Mg reaction has been identified by a sensitivity study as being one of the most important reactions for the production of 26Al in the convective C/Ne burning shell of massive stars. Owing to large uncertainties in previous experimental data, model calculations are used for the reaction rate of 23Na(α, p)26Mg in this sensitivity study. Current experimental data suggest a reaction rate a factor of ∼40 higher than model calculations. However, a new measurement of this reaction cross section has been made in inverse kinematics in the energy range E(c.m.)=1.28-3.15 MeV at TRIUMF, and found to be in reasonable agreement with the model calculation. A new reaction rate is calculated and tight constraints on the uncertainty in the production of 26Al, due to this reaction, are determined.
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Affiliation(s)
- J R Tomlinson
- The University of York, Heslington, York YO10 5DD, United Kingdom
| | - J Fallis
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A M Laird
- The University of York, Heslington, York YO10 5DD, United Kingdom
| | - S P Fox
- The University of York, Heslington, York YO10 5DD, United Kingdom
| | - C Akers
- The University of York, Heslington, York YO10 5DD, United Kingdom
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - M Alcorta
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - M A Bentley
- The University of York, Heslington, York YO10 5DD, United Kingdom
| | - G Christian
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - B Davids
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - T Davinson
- School of Physics and Astronomy, The University of Edinburgh, James Clerk Maxwell Building, Mayfield Road, Edinburgh EH9 3FD, United Kingdom
| | - B R Fulton
- The University of York, Heslington, York YO10 5DD, United Kingdom
| | - N Galinski
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A Rojas
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - C Ruiz
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - N de Séréville
- Institut de Physique Nucléaire d'Orsay, IN2P3-CNRS and Univ Paris-Sud, F-91405 Orsay Cedex, France
| | - M Shen
- TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - A C Shotter
- School of Physics and Astronomy, The University of Edinburgh, James Clerk Maxwell Building, Mayfield Road, Edinburgh EH9 3FD, United Kingdom
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123
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Wang W, Liao P, Shen M, Chen T, Chen Y, Li Y, Lin X, Ge X, Wang P. SCP1 regulates c-Myc stability and functions through dephosphorylating c-Myc Ser62. Oncogene 2015; 35:491-500. [PMID: 25893300 DOI: 10.1038/onc.2015.106] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 01/28/2015] [Accepted: 02/27/2015] [Indexed: 02/06/2023]
Abstract
Serine 62 (Ser62) phosphorylation affects the c-Myc protein stability in cancer cells. However, the mechanism for dephosphorylating c-Myc is not well understood. In this study, we identified carboxyl-terminal domain RNA polymerase II polypeptide A small phosphatase 1 (SCP1) as a novel phosphatase specifically dephosphorylating c-Myc Ser62. Ectopically expressed SCP1 strongly dephosphorylated c-Myc Ser62, destabilized c-Myc protein and suppressed c-Myc transcriptional activity. Knockdown of SCP1 increased the c-Myc protein levels in liver cancer cells. SCP1 interacted with c-Myc both in vivo and in vitro. In addition, Ser245 at the C-terminus of SCP1 was essential for its phosphatase activity towards c-Myc. Functionally, SCP1 negatively regulated the cancer cell proliferation. Collectively, our findings indicate that SCP1 is a potential tumor suppressor for liver cancers through dephosphorylating c-Myc Ser62.
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Affiliation(s)
- W Wang
- Department of Central Laboratory, Shanghai 10th People's Hospital, Tongji University, Shanghai, China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - P Liao
- Department of Central Laboratory, Shanghai 10th People's Hospital, Tongji University, Shanghai, China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - M Shen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - T Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Y Chen
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - Y Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China
| | - X Lin
- Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - X Ge
- Department of Central Laboratory, Shanghai 10th People's Hospital, Tongji University, Shanghai, China
| | - P Wang
- Department of Central Laboratory, Shanghai 10th People's Hospital, Tongji University, Shanghai, China.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China.,School of Life Science and Technology, Tongji University, Shanghai, China
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Ratliff B, Zullo J, Barnett C, Shen M, Rabadi M, Nesi L, Lamba R, Aldumuahdhi W. Low birth weight associated renal and vascular impairment. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.965.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - J Zullo
- MedicineNYMCValhallaNYUnited States
| | | | - M Shen
- MedicineNYMCValhallaNYUnited States
| | - M Rabadi
- MedicineNYMCValhallaNYUnited States
| | - L Nesi
- MedicineNYMCValhallaNYUnited States
| | - R Lamba
- MedicineNYMCValhallaNYUnited States
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125
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Zhang JQ, Xing BS, Zhu CC, Shen M, Yu FX, Liu HL. Protective effect of proanthocyanidin against oxidative ovarian damage induced by 3-nitropropionic acid in mice. Genet Mol Res 2015; 14:2484-94. [PMID: 25867394 DOI: 10.4238/2015.march.30.6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Oxidative stress, which poses a threat to reproductive health, causes many serious female reproductive diseases. In this study, we investigated whether proanthocyanidins (PC) have a protective effect against oxidative stress-induced ovarian damage. Forty female ICR mice were randomized into 4 groups: a control group, a control plus PC group, a 3-nitropropionic acid (3-NPA) group, and a 3-NPA plus PC group. An ovarian oxidative stress model induced by 3-NPA was constructed using female ICR mice. After the animals were sacrificed, their ovaries were collected to measure reactive oxygen species (ROS) levels, the activities of superoxide dismutase (SOD) and catalase (CAT), and the mRNA expression levels of relevant granulosa cell apoptosis genes (Bcl-2, Bax, Bim, FasL, and caspase-3). We also conducted a histological evaluation of granulosa cell apoptosis and follicular atresia. The results showed that compared to the 3-NPA group, ROS levels and activities of T-SOD and CAT in the 3-NPA plus PC group were significantly decreased (P < 0.05), while the ratio of Bcl-2 to Bax in the 3-NPA plus PC group were significantly increased (P < 0.05). mRNA expression levels of Bim, FasL, and caspase-3 in the 3-NPA plus PC group were significantly decreased (P < 0.05), and the percentage of atretic follicles and granulosa cell apoptosis in the 3-NPA plus PC group was significantly decreased (P < 0.05). Collectively, these data indicate that PC has significant protective effects against damage induced by oxidative stress in mouse ovaries. The mechanisms of protection may be related to antioxidation and apoptosis reduction.
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Affiliation(s)
- J Q Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - B S Xing
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - C C Zhu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - M Shen
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - F X Yu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - H L Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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126
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Hao ZQ, Li CM, Shen M, Yang XY, Li KH, Guo LB, Li XY, Lu YF, Zeng XY. Acidity measurement of iron ore powders using laser-induced breakdown spectroscopy with partial least squares regression. Opt Express 2015; 23:7795-7801. [PMID: 25837118 DOI: 10.1364/oe.23.007795] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Laser-induced breakdown spectroscopy (LIBS) with partial least squares regression (PLSR) has been applied to measuring the acidity of iron ore, which can be defined by the concentrations of oxides: CaO, MgO, Al₂O₃, and SiO₂. With the conventional internal standard calibration, it is difficult to establish the calibration curves of CaO, MgO, Al₂O₃, and SiO₂ in iron ore due to the serious matrix effects. PLSR is effective to address this problem due to its excellent performance in compensating the matrix effects. In this work, fifty samples were used to construct the PLSR calibration models for the above-mentioned oxides. These calibration models were validated by the 10-fold cross-validation method with the minimum root-mean-square errors (RMSE). Another ten samples were used as a test set. The acidities were calculated according to the estimated concentrations of CaO, MgO, Al₂O₃, and SiO₂ using the PLSR models. The average relative error (ARE) and RMSE of the acidity achieved 3.65% and 0.0048, respectively, for the test samples.
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127
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Xing L, Duan Y, Zhu F, Shen M, Jia T, Liu L, Tao J, Chen Y, Gao Z, Zhang H. Computed tomography navigation combined with endoscope guidance for the removal of projectiles in the maxillofacial area: a study of 24 patients. Int J Oral Maxillofac Surg 2015; 44:322-8. [DOI: 10.1016/j.ijom.2014.12.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 11/20/2014] [Accepted: 12/23/2014] [Indexed: 10/24/2022]
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128
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Zhang H, Zhu F, Shen M, Tian R, Shi CJ, Wang X, Jiang JX, Hu J, Wang M, Qin RY. Systematic review and meta-analysis comparing three techniques for pancreatic remnant closure following distal pancreatectomy. Br J Surg 2014; 102:4-15. [PMID: 25388952 DOI: 10.1002/bjs.9653] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/29/2014] [Accepted: 08/18/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND Established closure techniques for the pancreatic remnant after distal pancreatectomy include stapler, suture and anastomotic closure. However, controversy remains regarding the ideal technique; therefore, the aim of this study was to compare closure techniques and risk of postoperative pancreatic fistula (POPF). METHODS A systematic review was carried out according to PRISMA guidelines for studies published before January 2014 that compared at least two closure techniques for the pancreatic remnant in distal pancreatectomy. A random-effects model was constructed using weighted odds ratios (ORs). RESULTS Thirty-seven eligible studies matched the inclusion criteria and 5252 patients who underwent distal pancreatectomy were included. The primary outcome measure, the POPF rate, ranged 0 from to 70 per cent. Meta-analysis of the 31 studies comparing stapler versus suture closure showed that the stapler technique had a significantly lower rate of POPF, with a combined OR of 0.77 (95 per cent c.i. 0.61 to 0.98; P = 0.031). Anastomotic closure was associated with a significantly lower POPF rate than suture closure (OR 0.55, 0.31 to 0.98; P = 0.042). Combined stapler and suture closure had significantly lower POPF rates than suture closure alone, but no significant difference compared with stapler closure alone. CONCLUSION The use of stapler closure or anastomotic closure for the pancreatic remnant after distal pancreatectomy significantly reduces POPF rates compared with suture closure. The combination of stapler and suture closure shows superiority over suture closure alone.
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Affiliation(s)
- H Zhang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei
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Mitrofanova A, Floch N, Aytes A, Shen M, Abate-Shen C, Califano A. Abstract A29: Interrogating therapeutic response for advanced prostate cancer in vivo using cross-species regulatory models. Mol Cancer Res 2014. [DOI: 10.1158/1557-3125.modorg-a29] [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
While most men diagnosed with localized prostate cancer now have favorable outcomes, those with advanced disease often undergo androgen deprivation therapy, which initially leads to tumor regression but ultimately results in the emergence of a castration-resistant form of the disease that is highly metastatic and ultimately fatal. Our research is focused on generating mouse models of advanced prostate cancer to evaluate new therapeutic approaches for its treatment. Toward this end, we have generated state-of the-art genetically-engineered mouse (GEM) models, which are based on biologically-relevant signaling pathways and recapitulate prostate cancer from its earliest to most advanced stages. Indeed these mice recapitulate lethal prostate cancer as they display distant metastases with 100% penetrance as well as disseminated cells in the bone marrow. By pursuing preclinical studies in these GEM mice we have found that combinational targeted of key signaling pathways is significantly more effective than standard of care (i.e., chemotherapy) for blocking cancer progression, improving survival and inhibiting metastases in vivo.
However, one of the main obstacles for effectively translating results from preclinical studies in genetically-engineered mouse models is difficulties in overcoming inherent species differences that may preclude direct comparisons from mice to man. To overcome this limitation, we have assembled regulatory networks (called interactomes) for both mouse and human prostate cancer to enable cross-species analyses for identification of master regulators (driver genes) that underlie the therapeutic response. In particular, using these computational resources we have interrogated gene expression profiles from preclinical studies in our genetically-engineered mice, and have identified molecular regulators that predict therapeutic response in the mice and are conserved in human prostate cancer. Our approach highlights the value of cross-species analyses of preclinical studies in mice and human clinical data for predicting drug response.
Citation Format: Antonina Mitrofanova, Nicolas Floch, Alvaro Aytes, Michael Shen, Cory Abate-Shen, Andrea Califano. Interrogating therapeutic response for advanced prostate cancer in vivo using cross-species regulatory models. [abstract]. In: Proceedings of the AACR Special Conference: The Translational Impact of Model Organisms in Cancer; Nov 5-8, 2013; San Diego, CA. Philadelphia (PA): AACR; Mol Cancer Res 2014;12(11 Suppl):Abstract nr A29.
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Sumita K, Davis M, Pragani R, Terakawa J, Daikoku T, Majd N, Shen M, Li Z, Hu X, Cantley L, Boxer M, Simeonov A, Sasaki A. CS-33 * DISCOVERY OF A p53-INDEPENDENT SUPPRESSOR OF SENESCENCE OF GLIOBLASTOMA MULTIFORME. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou242.33] [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: 11/14/2022] Open
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131
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Barlow L, Chua CW, Lei M, DeCastro GJ, Badani K, Benson M, McKiernan J, Shen M. Abstract 3729: An individualized approach to bladder cancer treatment using patient-derived cell lines to predict response to chemotherapeutic agents. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-3729] [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
Introduction: Chemotherapy (both intravesical and systemic) can reduce the risk of recurrence and progression in various stages of bladder cancer. However, recurrence after treatment failure is associated with an increased risk of progression. There are currently no established methods for predicting patient-specific responses to treatment prior to drug selection. In our studies, we have developed a novel protocol for efficient establishment of cell lines from primary human bladder tumors, which enables in vitro drug sensitivity assays using chemotherapeutic agents.
Methods: Using an Institutional Review Board-approved tissue acquisition protocol, informed consent was obtained prior to specimen acquisition for all samples. Specimens were obtained during standard transurethral resection of papillary bladder tumors. Following generation of a single-cell suspension, epithelial cells were isolated using immunomagnetic cell separation and used for establishment of adherent cell cultures using a novel protocol. We performed immunohistochemistry on parental tissue as well as cultured cells to confirm that the urothelial cancer phenotype was maintained during serial passaging. For sensitivity assays, cultured cells were passaged and treated with chemotherapeutic agents, followed by assessment of cell viability using MTT assays.
Results: To date, seven specimens from patients with papillary urothelial carcinoma have been obtained, resulting in the establishment of six independent adherent cell lines. All established lines have been serially passaged (as high as P10) without significant decline in growth rate, and maintained expression of CK7, uroplakin III, p53, and Ki67 in patterns similar to parental tissue. Cells from line #7 were treated with mitomycin C, docetaxel, gemcitabine, and rapamycin at three different equivalent concentrations, resulting in a unique sensitivity profile that was reproduced in a replicate experiment performed at a subsequent passage.
Conclusions: We have established a novel protocol for culture and rapid expansion of primary cells from human bladder tumors for assays of drug response. Ultimately, we envision that this approach will provide a basis for the design of patient-specific therapeutic regimens for bladder cancer.
Citation Format: LaMont Barlow, Chee Wai Chua, Ming Lei, G. Joel DeCastro, Ketan Badani, Mitchell Benson, James McKiernan, Michael Shen. An individualized approach to bladder cancer treatment using patient-derived cell lines to predict response to chemotherapeutic agents. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 3729. doi:10.1158/1538-7445.AM2014-3729
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Affiliation(s)
| | | | - Ming Lei
- Columbia University Medical Center, New York, NY
| | | | - Ketan Badani
- Columbia University Medical Center, New York, NY
| | | | | | - Michael Shen
- Columbia University Medical Center, New York, NY
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132
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Shen M, Tastet L, Capoulade R, É Larose, É Bédard, Arsenault M, Chetaille P, Dumesnil J, Mathieu P, Pibarot P. IMPACT OF BICUSPID VERSUS TRICUSPID AORTIC VALVE PHENOTYPE ON THE RELATIONSHIP BETWEEN AORTIC VALVE CALCIFICATION MEASURED BY CT AND THE DOPPLER-ECHOCARDIOGRAPHIC PARAMETERS OF AORTIC STENOSIS SEVERITY -PROGRESSA STUDY. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.444] [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: 11/29/2022] Open
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133
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Lin F, Fu YH, Han J, Shen M, Du CW, Li R, Ma XS, Liu HL. Changes in the expression of Fox O1 and death ligand genes during follicular atresia in porcine ovary. Genet Mol Res 2014; 13:6638-45. [PMID: 25177944 DOI: 10.4238/2014.august.28.8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Follicular atresia, a key phenomenon in follicle development, eliminates most of the follicles in mammalian ovaries. To investigate the molecular mechanism of follicular atresia in porcine ovaries, we investigated the mRNA expression of three important cell death ligand-receptor systems and Fox O1 in follicles with a diameter of 3-5 mm. The phosphorylation and subcellular localization of Fox O1 during granulosa cell apoptosis was also determined. TRAIL and Fas L played an important role in follicular atresia at this stage. Fox O1 expression was upregulated during atresia, and was confined to the nucleus of granulosa cells; however, phosphorylated Fox O1 was localized to the cytoplasm. These results suggest Fox O1 involvement in the regulation of TRAIL and Fas L expression during follicular atresia in pigs.
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Affiliation(s)
- F Lin
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Y H Fu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - J Han
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - M Shen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - C W Du
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - R Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - X S Ma
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - H L Liu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, China
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134
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Gao Z, Lu X, Shen M, Shui R, Chen S. Rehearsing Biological Motion in Working Memory: An fMRI Study. J Vis 2014. [DOI: 10.1167/14.10.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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135
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136
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Shen M. Spotlight on the small
The Amoeba in the Room Lives of the Microbes
Nicholas P. Money
Oxford University Press, 2014. 246 pp. Science 2014. [DOI: 10.1126/science.1255863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Michael Shen
- The author is at the NYU Medical Scientist Training Program, New York, NY 10016, USA
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137
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DeMuth KE, Kozdag G, Aggarwal A, Pinksi S, Novaro G, Navas V, Boyle A, Wilson Tang W, Shen M. Assessment of Timeliness of ICD/CRT Implant Using Automated EMR/Analytics. J Card Fail 2014. [DOI: 10.1016/j.cardfail.2014.06.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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138
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Kozdag G, DeMuth KE, Aggarwal A, Pinski S, Novaro G, Navas V, Boyle A, Wilson Tang W, Shen M. Improved Patient Identification for ICD/CRT Using Automated EMR/Analytics. J Card Fail 2014. [DOI: 10.1016/j.cardfail.2014.06.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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139
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Fei B, Qin X, Wang S, Shen M, Wagner M, Zhang X. TU-F-12A-07: Cardiac Fiber Imaging Using High-Frequency Ultrasound in Animal Models. Med Phys 2014. [DOI: 10.1118/1.4889362] [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: 11/07/2022] Open
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140
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Zhang X, Xu H, Zhang T, Shen M, He M, Geng C, Wang J, Li Y, Xu L. Clinical observation of 32P metabolic mode at the level of sub-target nuclides. Panminerva Med 2014; 56:183-187. [PMID: 24336115] [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: 06/03/2023]
Abstract
AIM The aim of this paper was to observe the metabolic mode of 32P at the level of sub-target nuclides. METHODS Twenty-one cancer patients were locally injected with 32P-labelled glass microspheres and then observed to determine the equalization of 32P radionuclide metabolism in the tumor target. We imaged 3 sub-target regions of interest (ROI) 1/3 the size in both the anterior and posterior directions by bremsstrahlung single-photon emission computed tomography (SPECT) X-ray imaging. The radiation dose parameters of the beta rays including the initial dose rate, the effective half-life, and the effective half-life of the cumulative radiation dose were then calculated. RESULTS The radionuclide metabolism of the 21 complete tumor targets complied with the mono-compartmental model of index metabolism, but the level of tumor control did not correlate with radiation dose parameters. In contrast, the radionuclide metabolism of the 63 sub-targets did not comply with the mono-compartmental model. Instead, 32 sub-targets were better represented by bi-compartmental or tri-compartmental metabolic models. None of the remaining 31 sub-targets complied with index metabolism. CONCLUSION The complexity of the radiation dose at the sub-target level partially explains poor local tumor control. Future studies will be required to improve the expression of internal exposure to radiation dose parameters.
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Affiliation(s)
- X Zhang
- Department of radiotherapy, Xuzhou tumor hospital (Affiliated with Jiangsu University), Xuzhou, China -
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141
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Zou XH, Guo LB, Shen M, Li XY, Hao ZQ, Zeng QD, Lu YF, Wang ZM, Zeng XY. Accuracy improvement of quantitative analysis in laser-induced breakdown spectroscopy using modified wavelet transform. Opt Express 2014; 22:10233-10238. [PMID: 24921726 DOI: 10.1364/oe.22.010233] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A modified algorithm of background removal based on wavelet transform was developed for spectrum correction in laser-induced breakdown spectroscopy (LIBS). The optimal type of wavelet function, decomposition level and scaling factor γ were determined by the root-mean-square error of calibration (RMSEC) of the univariate regression model of the analysis element, which is considered as the optimization criteria. After background removal by this modified algorithm with RMSEC, the root-mean-square error of cross-validation (RMSECV) and the average relative error (ARE) criteria, the accuracy of quantitative analysis on chromium (Cr), vanadium (V), cuprum (Cu), and manganese (Mn) in the low alloy steel was all improved significantly. The results demonstrated that the algorithm developed is an effective pretreatment method in LIBS to significantly improve the accuracy in the quantitative analysis.
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142
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Shen M, Wang Z, Shibata M, Talos F, Chua CW, Lei M, Bergren S. Epithelial cell lineage specification during prostate organogenesis and regeneration (210.4). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.210.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michael Shen
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Zhu Wang
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Maho Shibata
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Flaminia Talos
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Chee Wai Chua
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Ming Lei
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
| | - Sarah Bergren
- Depts of MedicineGenetics & Development, Urologyand Systems Biology COLUMBIA Univ. Med. Ctr.New YorkNYUnited States
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DeMuth KE, Rodriguez J, Freedman J, Hernandez M, Asher C, Novaro G, Wolinsky D, Harris M, Starling R, Shen M. DO ALL SPECT APPROPRIATENESS CRITERIA PREDICT LONG-TERM CLINICAL OUTCOMES? A 3-YEAR FOLLOW-UP STUDY. J Am Coll Cardiol 2014. [DOI: 10.1016/s0735-1097(14)60997-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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144
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Smemo S, Tena JJ, Kim KH, Gamazon ER, Sakabe NJ, Gómez-Marín C, Aneas I, Credidio FL, Sobreira DR, Wasserman NF, Lee JH, Puviindran V, Tam D, Shen M, Son JE, Vakili NA, Sung HK, Naranjo S, Acemel RD, Manzanares M, Nagy A, Cox NJ, Hui CC, Gomez-Skarmeta JL, Nóbrega MA. Obesity-associated variants within FTO form long-range functional connections with IRX3. Nature 2014; 507:371-5. [PMID: 24646999 PMCID: PMC4113484 DOI: 10.1038/nature13138] [Citation(s) in RCA: 853] [Impact Index Per Article: 85.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Accepted: 02/10/2014] [Indexed: 12/18/2022]
Abstract
Genome-wide association studies (GWAS) have reproducibly associated variants within introns of FTO with increased risk for obesity and type 2 diabetes (T2D). Although the molecular mechanisms linking these noncoding variants with obesity are not immediately obvious, subsequent studies in mice demonstrated that FTO expression levels influence body mass and composition phenotypes. However, no direct connection between the obesity-associated variants and FTO expression or function has been made. Here we show that the obesity-associated noncoding sequences within FTO are functionally connected, at megabase distances, with the homeobox gene IRX3. The obesity-associated FTO region directly interacts with the promoters of IRX3 as well as FTO in the human, mouse and zebrafish genomes. Furthermore, long-range enhancers within this region recapitulate aspects of IRX3 expression, suggesting that the obesity-associated interval belongs to the regulatory landscape of IRX3. Consistent with this, obesity-associated single nucleotide polymorphisms are associated with expression of IRX3, but not FTO, in human brains. A direct link between IRX3 expression and regulation of body mass and composition is demonstrated by a reduction in body weight of 25 to 30% in Irx3-deficient mice, primarily through the loss of fat mass and increase in basal metabolic rate with browning of white adipose tissue. Finally, hypothalamic expression of a dominant-negative form of Irx3 reproduces the metabolic phenotypes of Irx3-deficient mice. Our data suggest that IRX3 is a functional long-range target of obesity-associated variants within FTO and represents a novel determinant of body mass and composition.
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Affiliation(s)
- Scott Smemo
- 1] Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA [2]
| | - Juan J Tena
- 1] Centro Andaluz de Biología del Desarrollo (CABD), Consejo Superior de Investigaciones Científicas/Universidad Pablo de Olavide, Carretera de Utrera Km1, Sevilla 41013, Spain [2]
| | - Kyoung-Han Kim
- 1] Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada [2]
| | - Eric R Gamazon
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Noboru J Sakabe
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Carlos Gómez-Marín
- Centro Andaluz de Biología del Desarrollo (CABD), Consejo Superior de Investigaciones Científicas/Universidad Pablo de Olavide, Carretera de Utrera Km1, Sevilla 41013, Spain
| | - Ivy Aneas
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Flavia L Credidio
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Débora R Sobreira
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Nora F Wasserman
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Ju Hee Lee
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Vijitha Puviindran
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Davis Tam
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Michael Shen
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
| | - Joe Eun Son
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada
| | - Niki Alizadeh Vakili
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Hoon-Ki Sung
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada
| | - Silvia Naranjo
- Centro Andaluz de Biología del Desarrollo (CABD), Consejo Superior de Investigaciones Científicas/Universidad Pablo de Olavide, Carretera de Utrera Km1, Sevilla 41013, Spain
| | - Rafael D Acemel
- Centro Andaluz de Biología del Desarrollo (CABD), Consejo Superior de Investigaciones Científicas/Universidad Pablo de Olavide, Carretera de Utrera Km1, Sevilla 41013, Spain
| | - Miguel Manzanares
- Cardiovascular Development and Repair Department, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid 28029, Spain
| | - Andras Nagy
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario M5T 3H7, Canada
| | - Nancy J Cox
- 1] Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA [2] Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, Illinois 60637, USA
| | - Chi-Chung Hui
- Program in Developmental & Stem Cell Biology, The Hospital for Sick Children, and Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Jose Luis Gomez-Skarmeta
- Centro Andaluz de Biología del Desarrollo (CABD), Consejo Superior de Investigaciones Científicas/Universidad Pablo de Olavide, Carretera de Utrera Km1, Sevilla 41013, Spain
| | - Marcelo A Nóbrega
- Department of Human Genetics, University of Chicago, Chicago, Illinois 60637, USA
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145
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Yu Y, Guo LB, Hao ZQ, Li XY, Shen M, Zeng QD, Li KH, Zeng XY, Lu YF, Ren Z. Accuracy improvement on polymer identification using laser-induced breakdown spectroscopy with adjusting spectral weightings. Opt Express 2014; 22:3895-3901. [PMID: 24663709 DOI: 10.1364/oe.22.003895] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new approach to polymer identification by laser-induced breakdown spectroscopy (LIBS) with adjusting spectral weightings (ASW) was developed in this work aiming at improving the identification accuracy. This approach has been achieved through increasing the intensities of specific characteristic spectral lines which are important to polymer identification but difficult to be excited. Using the ASW method, the identification accuracies of all 11 polymers were increased to nearly 100%, while the accuracies of PE, PU, PP and PC were only 98%, 74%, 90% and 98%, respectively, without using the ASW method.
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146
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Qi L, Liu J, Zhang Y, Wang J, Yang M, Gong T, Shen M, Du Y. Risk factors for non‐syndromic oral clefts: a matched case–control study in
H
ubei Province,
C
hina. Oral Dis 2013; 21:31-7. [DOI: 10.1111/odi.12200] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 08/21/2013] [Accepted: 10/09/2013] [Indexed: 11/29/2022]
Affiliation(s)
- L Qi
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
| | - J Liu
- Department of Child Health Hubei Maternal and Children's Healthcare Hospital WuhanChina
| | - Y Zhang
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
| | - J Wang
- Department of Psychology East China Normal University Shanghai China
| | - M Yang
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
| | - T Gong
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
| | - M Shen
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
| | - Y Du
- Department of Maternal and Children Health care School of Public Health Tongji Medical College Huazhong University of Science and Technology WuhanChina
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147
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Peng F, Jiang J, Yu Y, Tian R, Guo X, Li X, Shen M, Xu M, Zhu F, Shi C, Hu J, Wang M, Qin R. Direct targeting of SUZ12/ROCK2 by miR-200b/c inhibits cholangiocarcinoma tumourigenesis and metastasis. Br J Cancer 2013; 109:3092-104. [PMID: 24169343 PMCID: PMC3859942 DOI: 10.1038/bjc.2013.655] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 09/05/2013] [Accepted: 10/01/2013] [Indexed: 12/31/2022] Open
Abstract
Background: The multidrug resistance and distant metastasis of cholangiocarcinoma result in high postoperative recurrence and low long-term survival rates. It has been demonstrated that the ectopic expression of miR-200 suppresses the multidrug resistance and metastasis of cancer. However, the expression and function of miR-200 in cholangiocarcinoma has not yet been described. Methods: In this study, we identified dysregulated microRNAs (miRNAs, miR) in cholangiocarcinoma tissue by microarray analysis, and subsequent real-time PCR and northern blot analyses validated the expression of candidate miR. We performed functional analyses and investigated the relationship between miR-200b/c expression and the properties of cholangiocarcinoma cells. A dual luciferase assay was applied to examine the effect of miRNAs on the 3′-UTR of target genes, and we demonstrated the function of the target gene by siRNA transfection identifying the downstream pathway via western blotting. Results: We found significantly downregulated expression of four miR-200 family members (miR-200a/b/c/429) and then confirmed that ectopic miR-200b/200c inhibits the migration and invasion of cholangiocarcinoma cells both in vitro and in vivo. We found that miR-200b/c influenced the tumourigenesis of cholangiocarcinoma cells including their tumour-initiating capacity, sphere formation, and drug resistance. We further found that miR-200b/c regulated migration and invasion capacities by directly targeting rho-kinase 2 and regulated tumorigenic properties by directly targeting SUZ12 (a subunit of a polycomb repressor complex). Conclusion: Our study shows that miR-200b/c has a critical role in the regulation of the tumorigenic and metastatic capacity of cholangiocarcinoma and reveals the probable underlying mechanisms.
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Affiliation(s)
- F Peng
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, Hubei 430030, China
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148
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Yang M, Gong T, Lin X, Qi L, Guo Y, Cao Z, Shen M, Du Y. Maternal gene polymorphisms involved in folate metabolism and the risk of having a Down syndrome offspring: a meta-analysis. Mutagenesis 2013; 28:661-71. [DOI: 10.1093/mutage/get045] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [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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149
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Guo LB, Hao ZQ, Shen M, Xiong W, He XN, Xie ZQ, Gao M, Li XY, Zeng XY, Lu YF. Accuracy improvement of quantitative analysis by spatial confinement in laser-induced breakdown spectroscopy. Opt Express 2013; 21:18188-18195. [PMID: 23938689 DOI: 10.1364/oe.21.018188] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
To improve the accuracy of quantitative analysis in laser-induced breakdown spectroscopy, the plasma produced by a Nd:YAG laser from steel targets was confined by a cavity. A number of elements with low concentrations, such as vanadium (V), chromium (Cr), and manganese (Mn), in the steel samples were investigated. After the optimization of the cavity dimension and laser fluence, significant enhancement factors of 4.2, 3.1, and 2.87 in the emission intensity of V, Cr, and Mn lines, respectively, were achieved at a laser fluence of 42.9 J/cm(2) using a hemispherical cavity (diameter: 5 mm). More importantly, the correlation coefficient of the V I 440.85/Fe I 438.35 nm was increased from 0.946 (without the cavity) to 0.981 (with the cavity); and similar results for Cr I 425.43/Fe I 425.08 nm and Mn I 476.64/Fe I 492.05 nm were also obtained. Therefore, it was demonstrated that the accuracy of quantitative analysis with low concentration elements in steel samples was improved, because the plasma became uniform with spatial confinement. The results of this study provide a new pathway for improving the accuracy of quantitative analysis of LIBS.
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Affiliation(s)
- L B Guo
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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150
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Yin J, Huang X, Shui R, Shen M. Cooperative but not Competitive Relationship Drives Perceptual Grouping of Objects. J Vis 2013. [DOI: 10.1167/13.9.821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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