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Li W, Zhou J, Boon D, Fan T, Anneser E, Goodman JE, Prueitt RL. Nickel in ambient particulate matter and respiratory or cardiovascular outcomes: A critical review. Environ Pollut 2024; 347:123442. [PMID: 38278409 DOI: 10.1016/j.envpol.2024.123442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/05/2024] [Accepted: 01/23/2024] [Indexed: 01/28/2024]
Abstract
Exposure to ambient particulate matter (PM) has been associated with respiratory and cardiovascular outcomes, and nickel has been more frequently associated with these outcomes than other metal constituents of ambient PM. Because of this, we evaluated whether the evidence to date supports causal relationships between exposure to nickel in ambient PM and respiratory or cardiovascular outcomes. We critically reviewed 38 studies in human populations published between 2012 and 2022. Although a large variety of respiratory and cardiovascular outcomes were examined, data were sparse for many. As a result, we focused our evaluation on seven respiratory outcomes and three cardiovascular outcomes that were each examined in ≥3 studies. Of these health outcomes, exposure to nickel in ambient PM has been statistically significantly associated with respiratory mortality, respiratory emergency hospital visits, asthma, lung function (i.e., forced expiratory volume in 1 s, forced vital capacity), cardiovascular mortality, and ischemic heart disease mortality. Studies of the health outcomes of focus are subject to multiple methodological limitations, primarily ecological fallacy (short-term exposure studies), exposure measurement error, confounding, model misspecification, and multiple comparisons issue. While some statistically significant associations were reported, they were not strong, precise, or consistent. Statistically significant findings for long-term exposure to nickel in PM were largely reported in studies that could not establish temporality, despite their cohort study design. Statistically significant findings for short-term exposure to nickel in PM were largely reported in studies that could establish temporality, although this cannot inform causal inference at the individual level due to the aggregate level data used. The biological plausibility of the associations is only supported at high concentrations not relevant to ambient exposures. Overall, the literature to date does not provide adequate support for a causal relationship between nickel in ambient PM and respiratory or cardiovascular outcomes.
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Affiliation(s)
- Wenchao Li
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Jean Zhou
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Denali Boon
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Tongyao Fan
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Elyssa Anneser
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Julie E Goodman
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA
| | - Robyn L Prueitt
- Gradient, One Beacon St., 17th Floor, Boston, MA, 02108, USA.
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Li W, Long C, Fan T, Anneser E, Chien J, Goodman JE. Gas cooking and respiratory outcomes in children: A systematic review. Glob Epidemiol 2023; 5:100107. [PMID: 37638371 PMCID: PMC10446006 DOI: 10.1016/j.gloepi.2023.100107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/12/2023] [Accepted: 04/14/2023] [Indexed: 08/29/2023] Open
Abstract
The most recent meta-analysis of gas cooking and respiratory outcomes in children was conducted by Lin et al. [93] in 2013. Since then, a number of epidemiology studies have been published on this topic. We conducted the first systematic review of this epidemiology literature that includes an in-depth evaluation of study heterogeneity and study quality, neither of which was systematically evaluated in earlier reviews. We reviewed a total of 66 relevant studies, including those in the Lin et al. [93] meta-analysis. Most of the studies are cross-sectional by design, precluding causal inference. Only a few are cohort studies that could establish temporality and they have largely reported null results. There is large variability across studies in terms of study region, age of children, gas cooking exposure definition, and asthma or wheeze outcome definition, precluding clear interpretations of meta-analysis estimates such as those reported in Lin et al. [93]. Further, our systematic study quality evaluation reveals that a large proportion of the studies to date are subject to multiple sources of bias and inaccuracy, primarily due to self-reported gas cooking exposure or respiratory outcomes, insufficient adjustment for key confounders (e.g., environmental tobacco smoke, family history of asthma or allergies, socioeconomic status or home environment), and unestablished temporality. We conclude that the epidemiology literature is limited by high heterogeneity and low study quality and, therefore, it does not provide sufficient evidence regarding causal relationships between gas cooking or indoor NO2 and asthma or wheeze. We caution against over-interpreting the quantitative evidence synthesis estimates from meta-analyses of these studies.
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Affiliation(s)
- Wenchao Li
- Gradient, One Beacon St., 17 Floor, Boston, MA 02108, United States of America
| | - Christopher Long
- Gradient, One Beacon St., 17 Floor, Boston, MA 02108, United States of America
| | - Tongyao Fan
- Penn State College of Medicine, Department of Pharmacology, 500 University Drive, Hershey, PA 17033, United States of America
| | - Elyssa Anneser
- Gradient, One Beacon St., 17 Floor, Boston, MA 02108, United States of America
| | - Jiayang Chien
- Gradient, One Beacon St., 17 Floor, Boston, MA 02108, United States of America
| | - Julie E. Goodman
- Gradient, One Beacon St., 17 Floor, Boston, MA 02108, United States of America
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Prueitt RL, Hixon ML, Fan T, Olgun NS, Piatos P, Zhou J, Goodman JE. Systematic review of the potential carcinogenicity of bisphenol A in humans. Regul Toxicol Pharmacol 2023:105414. [PMID: 37263405 DOI: 10.1016/j.yrtph.2023.105414] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 02/24/2023] [Revised: 04/28/2023] [Accepted: 05/07/2023] [Indexed: 06/03/2023]
Abstract
Bisphenol A (BPA) is a synthetic chemical to which humans are exposed through a variety of environmental sources. We have conducted a comprehensive, systematic review of 29 epidemiology studies and 27 experimental animal studies, published through May 2022, evaluating the potential carcinogenicity of BPA to contribute to the understanding of whether BPA is carcinogenic in humans. We conducted this review according to best practices for systematic reviews and incorporating established frameworks for study quality evaluation and evidence integration. The epidemiology studies have many limitations that increase the risk of biased results, but overall, the studies do not provide clear and consistent evidence for an association between BPA exposure and the development of any type of cancer. The experimental animal studies also do not provide strong and consistent evidence that BPA is associated with the induction of any malignant tumor type. Some of the proposed mechanisms for BPA carcinogenicity are biologically plausible, but the relevance to human exposures is not clear. We conclude that there is inadequate evidence to support a causal relationship between BPA exposure and human carcinogenicity, based on inadequate evidence in humans, as well as evidence from experimental animal studies that suggests a causal relationship is not likely.
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Affiliation(s)
- Robyn L Prueitt
- Gradient, 600 Stewart Street, Suite 1900, Seattle, WA, 98101, USA.
| | - Mary L Hixon
- Gradient, One Beacon Street, Boston, MA, 02108, USA
| | - Tongyao Fan
- Gradient, One Beacon Street, Boston, MA, 02108, USA
| | - Nicole S Olgun
- Gradient, 103 East Water Street, 3rd Floor, Charlottesville, VA, 22902, USA
| | - Perry Piatos
- Gradient, One Beacon Street, Boston, MA, 02108, USA
| | - Jean Zhou
- Gradient, One Beacon Street, Boston, MA, 02108, USA
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Lin T, Peng S, Lu S, Fu S, Zeng D, Li J, Chen T, Fan T, Lang C, Feng S, Ma J, Zhao C, Antony B, Cicuttini F, Quan X, Zhu Z, Ding C. Prediction of knee pain improvement over two years for knee osteoarthritis using a dynamic nomogram based on MRI-derived radiomics: a proof-of-concept study. Osteoarthritis Cartilage 2023; 31:267-278. [PMID: 36334697 DOI: 10.1016/j.joca.2022.10.014] [Citation(s) in RCA: 3] [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: 03/29/2022] [Revised: 09/26/2022] [Accepted: 10/19/2022] [Indexed: 11/05/2022]
Abstract
OBJECTIVES To develop and validate a nomogram to detect improved knee pain in osteoarthritis (OA) by integrating magnetic resonance imaging (MRI) radiomics signature of subchondral bone and clinical characteristics. METHODS Participants were selected from the Vitamin D Effects on Osteoarthritis (VIDEO) study. The primary outcome was 20% improvement of knee pain score over 2 years in participants administrated either vitamin D or placebo. Radiomics features of subchondral bone and clinical characteristics from 216 participants were extracted and analyzed. The participants were randomly split into the training and validation cohorts at a ratio of 8:2. Least absolute shrinkage and selection operator (LASSO) regression was used to select features and generate radiomics signatures. The optimal radiomics signature and clinical indicators were fitted into a nomogram using multivariable logistic regression model. RESULTS The nomogram showed favorable discrimination performance [AUCtraining, 0.79 (95% CI: 0.72-0.79), AUCvalidation, 0.83 (95% CI: 0.70-0.96)] as well as a good calibration. Additional contributing value of fusion radiomics signature to the nomogram was statistically significant (NRI, 0.23; IDI, 0.14, P < 0.001 in training cohort and NRI, 0.29; IDI, 0.18, P < 0.05 in validating cohort). Decision curve analysis confirmed the clinical usefulness of nomogram. CONCLUSION The radiomics-based nomogram comprising the MR radiomics signature and clinical variables achieves a favorable predictive efficacy and accuracy in differentiating improvement in knee pain among OA patients. This proof-of-concept study provides a promising way to predict clinically meaningful outcomes.
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Affiliation(s)
- T Lin
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - S Peng
- School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.
| | - S Lu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - S Fu
- School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.
| | - D Zeng
- School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.
| | - J Li
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - T Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - T Fan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - C Lang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - S Feng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, 999077, Hong Kong, China.
| | - J Ma
- School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China.
| | - C Zhao
- Philips China, Beijing, 100000, China.
| | - B Antony
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, 7000, Australia.
| | - F Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, 3800, Australia.
| | - X Quan
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - Z Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
| | - C Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, 7000, Australia.
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Wang X, Chen T, Liang W, Fan T, Zhu Z, Cao P, Ruan G, Zhang Y, Chen S, Wang Q, Li S, Huang Y, Zeng M, Hunter DJ, Li J, Ding C. Synovitis mediates the association between bone marrow lesions and knee pain in osteoarthritis: data from the Foundation for the National Institute of Health (FNIH) Osteoarthritis Biomarkers Consortium. Osteoarthritis Cartilage 2022; 30:1270-1277. [PMID: 35750239 DOI: 10.1016/j.joca.2022.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 05/16/2022] [Accepted: 06/13/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Although subchondral bone marrow lesions (BMLs) and synovitis have been well acknowledged as important sources of pain in knee osteoarthritis (KOA), it is unclear if synovitis plays the mediating role in the relationship between BMLs and knee pain. METHODS We analyzed 600 subjects with magnetic resonance imaging (MRI) in the Foundation for National Institutes of Health Osteoarthritis Biomarkers Consortium (FNIH) cohort at baseline and 24-month. BMLs and synovitis were measured according to the MRI Osteoarthritis Knee Score (MOAKS) scoring system. BMLs were scored in five subregions. A summary synovitis score of effusion and Hoffa-synovitis was calculated. Knee pain was evaluated using the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Linear regression models were applied to analyze the natural direct effect (NDE) of BMLs and synovitis with knee pain, respectively, and natural indirect effect (NIE) mediated by synovitis. RESULTS 590 participants (58.8% females, with a mean age of 61.5) were included in the present analyses. For NDE, knee pain was cross-sectionally associated with medial femorotibial BMLs (β = 0.23, 95% CI: 0.09, 0.38) and synovitis (β = 0.40, 95% CI: 0.20, 0.60). Longitudinal associations retained significant [medial femorotibial BMLs (β = 0.37, 95% CI: 0.21, 0.53); synovitis (β = 0.72, 95% CI: 0.45, 0.99)]. In the NIE analyses, synovitis mediated the association between medial femorotibial BML and knee pain at baseline (β = 0.051, 95% CI: 0.01, 0.09) and over 24 months (β = 0.079, 95% CI: 0.023, 0.15), with the mediating proportion of 17.8% and 22.4%, respectively. CONCLUSION Synovitis partially mediates the association between medial femorotibial BMLs and knee pain.
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Affiliation(s)
- X Wang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - T Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China.
| | - W Liang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - T Fan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Z Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - P Cao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - G Ruan
- Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China.
| | - Y Zhang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - S Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Q Wang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - S Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Y Huang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - M Zeng
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - D J Hunter
- Department of Rheumatology, Royal North Shore Hospital and Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Australia.
| | - J Li
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - C Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.
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Mullins D, Jiang J, Chen L, Fan T, Goodwin B, Lu M, Chen S, Boules M. P158 HEALTHCARE RESOURCE UTILIZATION AND ECONOMIC BURDEN OF EOSINOPHILIC ESOPHAGITIS: A US-BASED RETROSPECTIVE MATCHED COHORT STUDY. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Fan T, Ruan G, Antony B, Cao P, Li J, Han W, Li Y, Yung SN, Wluka AE, Winzenberg T, Cicuttini F, Ding C, Zhu Z. The interactions between MRI-detected osteophytes and bone marrow lesions or effusion-synovitis on knee symptom progression: an exploratory study. Osteoarthritis Cartilage 2021; 29:1296-1305. [PMID: 34216729 DOI: 10.1016/j.joca.2021.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To investigate the longitudinal association between MRI-detected osteophyte scores and progression of knee symptoms, and whether the association was modified in the presence of bone marrow lesions (BMLs) or effusion-synovitis. METHODS Data from Vitamin D Effects on Osteoarthritis (VIDEO) study, a randomized, double-blinded and placebo-controlled clinical trial in symptomatic knee osteoarthritis (OA) patients, were analyzed as an exploratory study. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) was used to assess knee symptoms. Osteophytes, BMLs and effusion-synovitis were measured using MRI. RESULTS 334 participants with MRI information and WOMAC score (baseline and follow-up) were included in the analyses, with 24.3% of them having knee pain increased 2 years later. Statistically significant interactions were found between MRI-detected osteophytes and BMLs or effusion-synovitis on increased knee symptoms. In participants with BMLs, higher baseline scores of MRI-detected osteophytes in most compartments were significantly associated with increased total knee pain, weight-bearing pain, stiffness, and physical dysfunction, after adjustment for age, sex, body mass index, intervention and effusion-synovitis. In participants with effusion-synovitis, higher baseline scores of MRI-detected osteophytes in almost all the compartments were significantly associated with increased total knee pain, weight-bearing pain, stiffness, and physical dysfunction, after adjustment for age, sex, body mass index, intervention and BMLs. In contrast, MRI-detected osteophyte scores were generally not associated with knee symptom progression in participants without baseline BMLs or effusion-synovitis. CONCLUSIONS MRI-detected OPs are associated with increased total knee pain, weight-bearing knee pain, stiffness and physical dysfunction in participants presenting BMLs or effusion-synovitis, but not in participants lacking BMLs or effusion-synovitis. This suggests they could interact with bone or synovial abnormalities to induce symptoms in knee OA.
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Affiliation(s)
- T Fan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - G Ruan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - B Antony
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.
| | - P Cao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - J Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - W Han
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Y Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - S N Yung
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - A E Wluka
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
| | - T Winzenberg
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia.
| | - F Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
| | - C Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia; Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
| | - Z Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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Deng TT, Song EH, Zhou YY, Chen JY, Cheng YF, Yuan J, Fan T. The use of a single ammonium acidic salt towards simple green co-precipitation synthesis for Mn4+-activated fluorides. Dalton Trans 2020; 49:5823-5831. [DOI: 10.1039/d0dt00986e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Simply using acidic salt NH4HF2 contributes to the green co-precipitation synthesis of Mn4+-doped fluorides for W-LED applications.
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Affiliation(s)
- T. T. Deng
- School of Physics and Optoelectronic Engineering
- Foshan University
- Foshan 528000
- China
- State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials
| | - E. H. Song
- State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials
- South China University of Technology
- Guangzhou 510641
- China
| | - Y. Y. Zhou
- State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials
- South China University of Technology
- Guangzhou 510641
- China
| | - J. Y. Chen
- School of Physics and Optoelectronic Engineering
- Foshan University
- Foshan 528000
- China
| | - Y. F. Cheng
- School of Physics and Optoelectronic Engineering
- Foshan University
- Foshan 528000
- China
| | - J. Yuan
- School of Physics and Optoelectronic Engineering
- Foshan University
- Foshan 528000
- China
| | - T. Fan
- School of Physics and Optoelectronic Engineering
- Foshan University
- Foshan 528000
- China
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Du P, Fan T, Yingst J, Veldheer S, Hrabovsky S, Chen C, Foulds J. Changes in E-Cigarette Use Behaviors and Dependence in Long-term E-Cigarette Users. Am J Prev Med 2019; 57:374-383. [PMID: 31375364 PMCID: PMC9811611 DOI: 10.1016/j.amepre.2019.04.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 01/07/2023]
Abstract
INTRODUCTION Little is known about the effects of long-term e-cigarette use, particularly the risks of relapse to cigarette smoking or increased dependence. METHODS In a 2012-2014 baseline online e-cigarette survey, 1,863 respondents consented to participate in future research. A follow-up online survey was conducted in 2017-2018 to assess changes in e-cigarette use behaviors and e-cigarette-related dependence. For both surveys, exclusive e-cigarette use was defined as only using e-cigarettes in the past 7 days, and poly use was defined as using both e-cigarettes and other tobacco or nicotine products in the past 7 days. The Penn State Electronic Cigarette Dependence Index (PSECDI) score was calculated for each study subject and was used to evaluate e-cigarette dependence. Paired t-tests or Pearson correlation coefficients were used to examine changes in e-cigarette use behaviors or PSECDI scores between baseline and follow-up. Baseline and follow-up survey data were analyzed in January 2019. RESULTS A total of 494 subjects provided complete data on both surveys. At baseline, 402 subjects (81.4%) were exclusive e-cigarette users, and 71 subjects (14.4%) were poly users. Among baseline exclusive e-cigarette users, the majority (88.3%) continued using e-cigarettes exclusively, but 37 users (9.2%) became poly users and 1 returned to cigarette smoking at follow-up. Among baseline poly users, 60.6% became exclusive e-cigarette users at follow-up. The mean PSECDI score remained similar over time (8.4 at baseline vs 8.3 at follow-up). CONCLUSIONS Findings suggest that the risk of relapse to cigarette smoking is low, and e-cigarette-related dependence remains stable in long-term e-cigarette users.
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Affiliation(s)
- Ping Du
- Department of Medicine, Pennsylvania State University College of Medicine, Hershey, Pennsylvania; Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania.
| | - Tongyao Fan
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Jessica Yingst
- Penn State Tobacco Center of Regulatory Science, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Susan Veldheer
- Penn State Tobacco Center of Regulatory Science, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Shari Hrabovsky
- Penn State Tobacco Center of Regulatory Science, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Chen Chen
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Jonathan Foulds
- Department of Public Health Sciences, Pennsylvania State University College of Medicine, Hershey, Pennsylvania; Penn State Tobacco Center of Regulatory Science, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
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Chen X, Li Y, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. Associations between RAD51D germline mutations and breast cancer risk and survival in BRCA1/2-negative breast cancers. Ann Oncol 2018; 29:2046-2051. [DOI: 10.1093/annonc/mdy338] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Su L, Zhang J, Meng H, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. Prevalence of BRCA1/2 large genomic rearrangements in Chinese women with sporadic triple-negative or familial breast cancer. Clin Genet 2018; 94:165-169. [PMID: 29582426 DOI: 10.1111/cge.13256] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/09/2018] [Accepted: 03/23/2018] [Indexed: 11/29/2022]
Abstract
The prevalence of BRCA1/2 large genomic rearrangements (LGRs) and their underlying mechanisms have not been fully evaluated in Chinese women with breast cancer. In this study, we determined the prevalence of BRCA1/2 LGRs in 834 patients with familial breast cancer (FBC) and 660 patients with sporadic triple-negative breast cancer (TNBC) who were negative for BRCA1/2 small-range mutations using the multiplex ligation-dependent probe amplification method. We found that 20 index patients (2.4%) in the FBC group carried a BRCA1 or BRCA2 LGR, and the frequencies of BRCA1 and BRCA2 LGRs were 1.6% and 0.8%, respectively. Seven index patients (1.1%) carried a BRCA1 LGR in 660 sporadic TNBC patients, whereas no BRCA2 LGRs were found in these patients. Among the BRCA1/2 LGRs, 48.1% (13/27) were novel, and the breakpoints of the majority of the LGRs were identified. ΨBRCA1-mediated homologous recombination (HR) and Alu-mediated HR/non-homologous end-joining (NHEJ) accounted for 40% and 30% of the BRCA1 LGRs, respectively. Alu-mediated HR accounted for 71.4% of the BRCA2 LGRs, and the remaining one-third was generated through Long interspersed nuclear elements (LINE)-mediated NHEJ. Our findings suggest that both FBC patients and sporadic TNBC patients should be tested for BRCA1/2 LGRs.
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Affiliation(s)
- L Su
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - H Meng
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Ouyang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - J Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - Z Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - T Fan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - B Lin
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
| | - Y Xie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Centre, Peking University Cancer Hospital & Institute, Beijing, China
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Zhou R, Zang G, Yu Q, Pang K, Zhou X, He H, Liang Q, Fan T, Han C. Transurethral fluorescence cystoscopy guidance for total resection of bladder tumor. J BIOL REG HOMEOS AG 2018; 32:669-672. [PMID: 29921397] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The purpose of this work is to investigate the total resection of bladder tumor under transurethral fluorescence cystoscopy. Nineteen patients with bladder tumor, from which we resected a total of 26 tumors, including 16 single tumors with diameters of 0.5~2 cm, were enrolled in the study. All tumors were located in the posterior wall or neck of the bladder. For the surgery, the size and location of tumors in the bladder were observed by fluorescence cystoscopy. Then, plasma electrocision was used to cut the full-thickness of the bladder to the fat outside of the bladder along the near-end of the tumor, then along the left and right side of bladder (to the far-end), and the full-thickness of the tumor was resected. Finally, the far-end tumor was removed and the full-thickness of the bladder at the bottom was completely resected. All operations were completed successfully within 10-40 min. There was little bleeding during surgery and no secondary bleeding after surgery. Tumor staging found 17 patients at T1 stage (20 tumors) and 2 patients at T2 stage (6 tumors). Patients were followed up for 6~12 months without any recurrence. We show here that total resection of bladder tumor can be accomplished under transurethral fluorescence cystoscopy and preventative resection can be conducted on the suspicious bladder wall with precision to eliminate tumor residue that promotes recurrence.
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Affiliation(s)
- R Zhou
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - G Zang
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - Q Yu
- The Peoples Hospital of Shu Yang County, Wu Jieping Urinary Surgery Center, Shuyang, Jiangsu, China
| | - K Pang
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - X Zhou
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - H He
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - Q Liang
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - T Fan
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
| | - C Han
- Xuzhou Central Hospital Urinary Surgery, Southeast University Xuzhou Reproduction Institute, Xuzhou, Jiangsu, China
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Wang ZJ, He YJ, Li JF, Xie YT, Wang TF, Fan ZQ, Fan T, Ouyang T. [Impact of the response of primary tumor to preoperative chemotherapy and anti-HER2 therapy on survival of HER2-positive breast cancer patients]. Zhonghua Yi Xue Za Zhi 2016; 96:2578-82. [PMID: 27596555 DOI: 10.3760/cma.j.issn.0376-2491.2016.32.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the impact of anti-HER2 therapy and response of primary tumor on distant disease free survival (DDFS) of the patients with HER2-positive breast cancer. METHODS The clinical data of the patients with HER2-positive breast cancer treated with neoadjuvant systemic therapy were analyzed retrospectively. RESULTS Patients treated with preoperative anti-HER2 therapy and chemotherapy had a significant improved pathological complete response (pCR) rate (48.4%) compared with those treated with preoperative chemotherapy (17.2%) (P=0.000). The median follow-up period was 62(6-160) months. The 5-year DDFS in patients with anti-HER2 therapy and patients without anti-HER2 therapy was 93.5% and 83.3% respectively (P=0.006). The 5-year DDFS in patients achieving a pCR and patients not achieving a pCR was 94.7% and 82.6% respectively(P=0.001). Among patients achieving a pCR, anti-HER2 therapy did not improve DDFS significantly (P=0.960). Benefits of anti-HER2 therapy in DDFS among patients without a pCR achieved statistical significance (P=0.028). CONCLUSIONS Combination of neoadjuvant anti-HER2 therapy and chemotherapy resulted in a higher pCR rate in HER2-overexpressing primary breast cancer. Patients treated with neoadjuvant systemic therapy who achieved a pCR have excellent outcome regardless of whether they received anti-HER2 therapy.
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Affiliation(s)
- Z J Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Breast Cancer Prevention & Treatment Center, Peking University Cancer Hospital & Institute, Beijing 100142, China
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Barger A, Graca R, Bailey K, Messick J, de Lorimier LP, Fan T, Hoffmann W. Use of Alkaline Phosphatase Staining to Differentiate Canine Osteosarcoma from Other Vimentin-positive Tumors. Vet Pathol 2016; 42:161-5. [PMID: 15753469 DOI: 10.1354/vp.42-2-161] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Aspiration of lytic bone lesions is an excellent diagnostic test in the initial evaluation of primary bone neoplasia. However, cytologically, it can be difficult to differentiate osteosarcoma (OSA) from other bone neoplasms, including fibrosarcoma, chondrosarcoma, synovial cell sarcoma, and plasma cell myeloma. The purpose of this study is to determine the sensitivity and specificity of alkaline phosphatase (ALP) staining to differentiate OSA from other tumors that express vimentin by immunocytochemistry or immunohistochemistry. ALP is a hydrolytic enzyme present in multiple tissues including liver, kidney, intestine, placenta, and bone. Hypothetically, neoplasms actively producing bone should be specifically positive for ALP staining. Unstained, cytologic specimens were incubated for 8-10 minutes with nitroblue tetrazolium chloride/5-bromo-4-chloro-3-indolyl phosphate toluidine salt-phosphatase substrate. A positive reaction stains the membrane of the cells gray to black. Samples were counterstained with a Romanowsky's stain to determine whether the sample was of representative cellularity. A total of 61 vimentin-positive neoplasms have been evaluated and confirmed histopathologically. Tumors that expressed vimentin and were positive for ALP included 33 OSAs, one multilobular tumor of bone, one amelanotic melanoma, and one chondrosarcoma. Tumors that expressed vimentin and were negative for ALP included chondrosarcomas (three of four), multiple fibrosarcomas, and multiple synovial cell sarcomas. The sensitivity is 100%, and the specificity is 89%. In conclusion, ALP appears to be a highly sensitive and fairly specific marker in the diagnosis of OSA.
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Affiliation(s)
- A Barger
- Department of Venterinary Pathology, College of Veterinary Medicine, University of Illinois, 288 SAC, 1008 Hazelwood Drive, Urbana, IL, USA.
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Fan T, Paramo J, Mesko T, Poppiti R, Ruiz A, Rodriguez E. Abstract P6-10-04: Factors determining underutilization of core biopsy prior to breast surgery. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p6-10-04] [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
BACKGROUND:
The American College of Surgeons National Accreditation Program for Breast Centers, Standard 2.9, requires a palpation-guided or image-guided needle biopsy as the initial diagnostic approach for breast cancer rather than an open biopsy. In replacing excisional biopsies, this minimally invasive technique demonstrates accuracy and precision in determining tumor characteristics and allows for more optimal breast cancer care. Recent studies have suggested that needle biopsy is underused in the United States. In a recently published analysis of U.S. Medicare data from 2003-2007, needle biopsy was used in 68.4% of all patients with breast cancer surgery. In this single-institution study, we analyzed the utilization of image-guided preoperative breast biopsies and which patient and system related factors contributed to the underutilization of image-guided breast biopsies and clinical outcomes.
MATERIALS AND METHODS:
In this retrospective study, we analyzed all breast cancer cases diagnosed over a four year period at Mount Sinai Medical Center (MSMC) from January 1, 2009 to December 31, 2013 (n=485). We performed a detailed chart review of the surgical cases that did not meet breast biopsy standards to identify contributing patient and surgeon level factors. Descriptive statistics and univariate analysis were used to characterize breast biopsy patterns and outcomes as well as delineate the associations between patient and surgical covariates with needle biopsy receipt.
RESULTS:
Needle biopsy was used in 86% (n=419) of all breast cancer surgeries. The median age for the cohort of patients without needle biopsy was 68.0 years (range 35-94). There was no significant variation in utilization of needle biopsy by race or surgeon. The proportion of patients without needle biopsy decreased significantly over time from 2009-2013. The most common reason for the lack of preoperative breast biopsy was the surgeon's preference to proceed with surgery because of very suspicious imaging studies (including mammograms and MRI) (n=9). There were an additional nine cases where the biopsy was attempted but was non-diagnostic. The most common patient-related factors for lack of needle biopsy were advanced age, use of anticoagulation and noncompliance due to a psychiatric diagnosis and patient discomfort. Other factors identified include lack of surgeon consultation before biopsy, biopsy of axillary lymph nodes as a means of diagnosis and patient's inpatient status.
CONCLUSIONS:
In this single institution, the rate of needle biopsy for breast cancer diagnosis was above national benchmarks. The most common reason for lack of a preoperative breast biopsy was the surgeon's preference to proceed with surgery because of very suspicious imaging studies. Patients with advanced age, psychiatric history, and inpatient workup were also more likely to lack a preoperative breast biopsy.
Citation Format: Fan T, Paramo J, Mesko T, Poppiti R, Ruiz A, Rodriguez E. Factors determining underutilization of core biopsy prior to breast surgery. [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 P6-10-04.
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Affiliation(s)
- T Fan
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
| | - J Paramo
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
| | - T Mesko
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
| | - R Poppiti
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
| | - A Ruiz
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
| | - E Rodriguez
- Creighton University School of Medicine, Omaha, NE; Mount Sinai Medical Center, Miami Beach, FL
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Deng HP, Chen L, Fan T, Zhang B, Xu Y, Geng Q. Long non-coding RNA HOTTIP promotes tumor growth and inhibits cell apoptosis in lung cancer. Cell Mol Biol (Noisy-le-grand) 2015; 61:34-40. [PMID: 26265284] [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] [Received: 06/17/2015] [Accepted: 08/07/2015] [Indexed: 06/04/2023]
Abstract
Lung cancer is one of the leading causes of cancer-related deaths worldwide. Early diagnosis is the best defense against this threat and is therefore of vital importance. In this study, we investigated the role of long non-coding RNA HOTTIP in the tumor growth of lung cancer. Initially, we found that expression of HOTTIP was significantly elevated in 20 cases of lung cancer. HOTTIP was also differentially expressed in a consecutive of lung cancer cell lines. Furthermore, specific shRNA against HOTTIP was employed to deplete expression of HOTTIP in A549 cells and NCI-H446 cells. After successfully depletion of HOTTIP, cell proliferation and colony formation were significantly inhibited in vitro. Tumor growth in vivo was also suppressed after depletion of HOTTIP in a mouse model of lung cancer. Moreover, depletion of HOTTIP caused cell cycle arrest in G0/G1 phase and induced significant cell apoptosis. Cell cycle regulators Cdc25C, Cyclin B1 and Cyclin D1 were decreased upon depletion of HOTTIP. Pro-apoptotic factor Bad was up-regulated, whereas anti-apoptotic factors Bcl-2 and Bcl-xL were down-regulated after HOTTIP ablation. These data suggest that lncRNA HOTTIP contributes to tumor growth in vivo and in vitro and inhibits cell apoptosis in lung cancer.
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Affiliation(s)
- H-P Deng
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China
| | - L Chen
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China
| | - T Fan
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China
| | - B Zhang
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China
| | - Y Xu
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China
| | - Q Geng
- Renmin Hospital of Wuhan University Department of Cardiothoracic Surgery Hubei China szgqing@126.com
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Gao M, Fan T, Duan J. SU-E-E-16: The Application of Texture Analysis for Differentiation of Central Cancer From Atelectasis. Med Phys 2015. [DOI: 10.1118/1.4923936] [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: 11/07/2022] Open
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Lyu R, Ding Q, Govoni M, Makin C, Korn J, Fan T, Ogbonnaya A, Black C, Kachroo S. THU0435 Treatment Persistence with Subcutaneous Biologic Therapies in Patients with Psoriatic Arthritis (PSA). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1543] [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: 11/04/2022]
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19
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Lyu R, Ding Q, Govoni M, Makin C, Korn J, Fan T, Ogbonnaya A, Black C, Kachroo S. AB0754 Persistence Rate with Subcutaneous Biologic Therapies in Patients with Ankylosing Spondylitis (AS). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1456] [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: 11/04/2022]
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Gao M, Liu H, Fan T. SU-E-I-89: The Role of Reflectance Confocal Microscopy in the Screening of Hypo-Pigmented Mycosis Fungoides. Med Phys 2015. [DOI: 10.1118/1.4924086] [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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21
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Wang C, Zhang J, Wang Y, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. Prevalence of BRCA1 mutations and responses to neoadjuvant chemotherapy among BRCA1 carriers and non-carriers with triple-negative breast cancer. Ann Oncol 2014; 26:523-8. [PMID: 25480878 DOI: 10.1093/annonc/mdu559] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The frequency of BRCA1 germline mutations among Chinese women with triple-negative breast cancer is unclear, and the association between BRCA1 mutations and the response to neoadjuvant chemotherapy in women with triple-negative breast cancer has not been determined. PATIENTS AND METHODS Nine hundred and fifty-six triple-negative breast cancer patients were treated at our institute between 2003 and 2012; we tested the BRCA1/2 mutations for 956 patients and 953 patients in this cohort, respectively. Among the 956 patients, 652 patients received neoadjuvant chemotherapy. RESULTS In this cohort, 7.1% (68/956) and 2.3% (22/953) of patients carried a BRCA1 or BRCA2 mutation, respectively. The BRCA1/2 mutation rates were 10.5% and 3.0% among the patients who were diagnosed at or before the age of 50 in this cohort, respectively. The pCR (pathologic complete response) rate was 31.6% in the 652 patients who received neoadjuvant chemotherapy. BRCA1 carriers had a significantly higher pCR rate than non-carriers (BRCA1 carriers versus non-carriers, 53.8% versus 29.7%, P < 0.001). Among women treated with anthracycline with or without taxane regimens, the pCR rate was 57.1% for BRCA1 carriers, 29.0% for non-carriers (P < 0.001); among women treated with taxane regimens, the pCR rate was 40.0% for BRCA1 carriers, 32.9% for non-carriers (P = 0.73). At a median follow-up of 43 months, the recurrence-free survival was similar between BRCA1 carriers and non-carriers among the 947 patients of this study (adjusted hazard ratio = 0.92; 95% confidence interval: 0.45-1.90; P = 0.82). CONCLUSIONS Chinese women with triple-negative breast cancer who are diagnosed at or before age of 50 are candidates for BRCA1 genetic testing. Among triple-negative breast cancer patients, BRCA1 carriers are more likely to respond to neoadjuvant anthracycline-based regimens than are non-carriers.
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Affiliation(s)
- C Wang
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - J Zhang
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - Y Wang
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - T Ouyang
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - J Li
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - T Wang
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - Z Fan
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - T Fan
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - B Lin
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - Y Xie
- Breast Center, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
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Perreault ML, Shen MYF, Fan T, George SR. Regulation of c-fos expression by the dopamine D1-D2 receptor heteromer. Neuroscience 2014; 285:194-203. [PMID: 25446350 DOI: 10.1016/j.neuroscience.2014.11.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 07/18/2014] [Revised: 11/03/2014] [Accepted: 11/10/2014] [Indexed: 11/24/2022]
Abstract
The dopamine D1 and D2 receptors form the D1-D2 receptor heteromer in a subset of neurons and couple to the Gq protein to regulate intracellular calcium signaling. In the present study the effect of D1-D2 heteromer activation and disruption on neuronal activation in the rat brain was mapped. This was accomplished using the dopamine agonist SKF 83959 to activate the D1-D2 heteromer in combination with a TAT-D1 disrupting peptide we developed, and which has been shown to disrupt the D1/D2 receptor interaction and antagonize D1-D2 heteromer-induced cell signaling and behavior. Acute SKF 83959 administration to rats induced significant c-fos expression in the nucleus accumbens that was significantly inhibited by TAT-D1 pretreatment. No effects of SKF 83959 were seen in caudate putamen. D1-D2 heteromer disruption by TAT-D1 did not have any effects in any striatal subregions, but induced significant c-fos immunoreactivity in a number of cortical regions including the orbitofrontal cortex, prelimbic and infralimbic cortices and piriform cortex. The induction of c-fos by TAT-D1 was also evident in the anterior olfactory nucleus, as well as the lateral habenula and thalamic nuclei. These findings show for the first time that the D1-D2 heteromer can differentially regulate c-fos expression in a region-dependent manner either through its activation or through tonic inhibition of neuronal activity.
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Affiliation(s)
- M L Perreault
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - M Y F Shen
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - T Fan
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - S R George
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada; Department of Medicine, University of Toronto, Toronto, ON, Canada.
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Lyu R, Ding Q, Govoni M, Fan T. Treatment Persistence With Subcutaneous Biologic Therapies in Patients With Psoriatic Arthritis (Psa). Value Health 2014; 17:A384-A385. [PMID: 27200865 DOI: 10.1016/j.jval.2014.08.2638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- R Lyu
- Merck & Co., Inc, Whitehouse Station, NJ, USA
| | - Q Ding
- Temple University, Philadelphia, PA, USA
| | - M Govoni
- Merck Sharp & Dohme Limited, Rome, Italy
| | - T Fan
- Merck & Co., Inc, Whitehouse Station, NJ, USA
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Xufei X, Nocente M, Bonomo F, Franzen P, Fröschle M, Grosso G, Grünauer F, Pasqualotto R, Tardocchi M, Fan T, Gorini G. Neutron measurements from beam-target reactions at the ELISE neutral beam test facility. Rev Sci Instrum 2014; 85:11D864. [PMID: 25430277 DOI: 10.1063/1.4896177] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Measurements of 2.5 MeV neutron emission from beam-target reactions performed at the ELISE neutral beam test facility are presented in this paper. The measurements are used to study the penetration of a deuterium beam in a copper dump, based on the observation of the time evolution of the neutron counting rate from beam-target reactions with a liquid scintillation detector. A calculation based on a local mixing model of deuterium deposition in the target up to a concentration of 20% at saturation is used to evaluate the expected neutron yield for comparison with data. The results are of relevance to understand neutron emission associated to beam penetration in a solid target, with applications to diagnostic systems for the SPIDER and MITICA Neutral Beam Injection prototypes.
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Affiliation(s)
- X Xufei
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - M Nocente
- Dipartimento di Fisica "G. Occhialini", Università di Milano-Bicocca, Milano 20216, Italy
| | - F Bonomo
- Consorzio RFX, Padova 35100, Italy
| | - P Franzen
- Max-Planck-Institut für Plasmaphysik, Garching 84518, Germany
| | - M Fröschle
- Max-Planck-Institut für Plasmaphysik, Garching 84518, Germany
| | - G Grosso
- Istituto di Fisica del Plasma "P. Caldirola", Milano 20216, Italy
| | - F Grünauer
- Physics Consulting, Zorneding 85604, Germany
| | | | - M Tardocchi
- Istituto di Fisica del Plasma "P. Caldirola", Milano 20216, Italy
| | - T Fan
- State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - G Gorini
- Dipartimento di Fisica "G. Occhialini", Università di Milano-Bicocca, Milano 20216, Italy
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Lyu R, Ding Q, Govoni M, Fan T. Persistence Rate With Subcutaneous Biologic Therapies in Patients With Rheumatoid Arthritis (Ra). Value Health 2014; 17:A384. [PMID: 27200864 DOI: 10.1016/j.jval.2014.08.2634] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- R Lyu
- Merck & Co., Inc, Whitehouse Station, NJ, USA
| | - Q Ding
- Temple University, Philadelphia, PA, USA
| | - M Govoni
- Merck Sharp & Dohme Limited, Rome, Italy
| | - T Fan
- Merck & Co., Inc, Whitehouse Station, NJ, USA
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Govoni M, Lyu R, Ding Q, Fan T. Persistence Rate With Subcutaneous Biologic Therapies in Patients With Ankylosing Spondylitis (As). Value Health 2014; 17:A384. [PMID: 27200867 DOI: 10.1016/j.jval.2014.08.2635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- M Govoni
- Merck Sharp & Dohme Limited, Rome, Italy
| | - R Lyu
- Merck & Co., Inc, Whitehouse Station, NJ, USA
| | - Q Ding
- Temple University, Philadelphia, PA, USA
| | - T Fan
- Merck & Co., Inc, Whitehouse Station, NJ, USA
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Li F, Li J, Fan T, Shao Q, Xu M, Zhang Y, Qi H, Wang J. Evaluation of Movement of Peripheral Non-Small Cell Lung Cancer Using 4-Dimensional CT. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2482] [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: 10/24/2022]
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Lyu R, Govoni M, Ding Q, Fan T, Ogbonnaya A, Donga P, Korn J, Makin C. AB1091 Treatment Persistence with Subcutaneous Biologic Therapies in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4656] [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: 11/04/2022]
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Govoni M, Lyu R, Ding Q, Fan T, Ogbonnaya A, Donga P, Korn J, Makin C. AB1077 Treatment Patterns and Persistence with Subcutaneous Biologic Therapies in Patients with Ankylosing Spondylitis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3843] [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: 11/04/2022]
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Han X, Diao L, Xu Y, Xue W, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. Association between the HER2 Ile655Val polymorphism and response to trastuzumab in women with operable primary breast cancer. Ann Oncol 2014; 25:1158-64. [DOI: 10.1093/annonc/mdu111] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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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Zhang X, Källne J, Gorini G, Nocente M, Fan T, Yuan X, Xie X, Chen Z. Second generation fusion neutron time-of-flight spectrometer at optimized rate for fully digital data acquisition. Rev Sci Instrum 2014; 85:043503. [PMID: 24784603 DOI: 10.1063/1.4869804] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The progress on high-rate event recording of data is taken as starting point to revisit the design of fusion neutron spectrometers based on the TOF (time-of-flight) technique. The study performed was aimed at how such instruments for optimized rate (TOFOR) can be further developed to enhance the plasma diagnostic capabilities based on measurement of the 2.5 MeV dd neutron emission from D plasmas, especially the weak spectral components that depend on discrimination of extraneous events. This paper describes a design (TOFOR II) adapted for use with digital wave form recording of all detector pulses providing information on both amplitude (pulse height) and timing. The results of simulations are presented and the performance enhancement is assessed in comparison to the present.
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Affiliation(s)
- X Zhang
- School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - J Källne
- Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - G Gorini
- Dipartimento di Fisica "G. Occhialini," Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - M Nocente
- Dipartimento di Fisica "G. Occhialini," Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - T Fan
- School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - X Yuan
- School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - X Xie
- School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - Z Chen
- School of Physics, State Key Lab of Nuclear Physics and Technology, Peking University, Beijing 100871, China
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Ruan Q, Wang P, Wang T, Qi J, Wei M, Wang S, Fan T, Johnson D, Wan X, Shi W, Sun H, Chen YH. MicroRNA-21 regulates T-cell apoptosis by directly targeting the tumor suppressor gene Tipe2. Cell Death Dis 2014; 5:e1095. [PMID: 24577093 PMCID: PMC3944261 DOI: 10.1038/cddis.2014.47] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/30/2013] [Accepted: 01/17/2014] [Indexed: 01/03/2023]
Abstract
MicroRNAs (MiRs) are short noncoding RNAs that can regulate gene expression. It has been reported that miR-21 suppresses apoptosis in activated T cells, but the molecular mechanism remains undefined. Tumor suppressor Tipe2 (or tumor necrosis factor-α-induced protein 8 (TNFAIP8)-like 2 (TNFAIP8L2)) is a newly identified anti-inflammatory protein of the TNFAIP8 family that is essential for maintaining immune homeostasis. We report here that miR-21 is a direct target of nuclear factor-κB and could regulate Tipe2 expression in a Tipe2 coding region-dependent manner. In activated T cells and macrophages, Tipe2 expression was markedly downregulated, whereas miR-21 expression was upregulated. Importantly, Tipe2-deficient T cells were significantly less sensitive to apoptosis. Conversely, overexpression of Tipe2 in EL-4 T cells increased their susceptibility to activation-induced apoptosis. Therefore, Tipe2 provides a molecular bridge between miR-21 and cell apoptosis; miR-21 suppresses apoptosis in activated T cells at least in part through directly targeting tumor suppressor gene Tipe2.
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Affiliation(s)
- Q Ruan
- 1] Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China [2] 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - P Wang
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - T Wang
- 1] 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA [2] Shandong Eye Institute, Qingdao 266071, People's Republic of China
| | - J Qi
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - M Wei
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - S Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - T Fan
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - D Johnson
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - X Wan
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, People's Republic of China
| | - W Shi
- Shandong Eye Institute, Qingdao 266071, People's Republic of China
| | - H Sun
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Y H Chen
- 713 Stellar-Chance Laboratories, Department of Pathology and Laboratory of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
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Zhou XJ, Zhou RS, Fan T, Han CH. Experience with the treatment of testicular yolk sac tumor in children: a report of 14 cases. Eur Rev Med Pharmacol Sci 2014; 18:3831-3833. [PMID: 25555873] [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: 06/04/2023]
Abstract
OBJECTIVE This paper discusses the optimal treatment for testicular yolk sac tumor at stage I in children. PATIENTS AND METHODS Fourteen children with testicular yolk sac tumor (including 10 cases of stage I and 4 cases of stage II) underwent high ligation of internal spermatic cord vein and orchiectomy. Among these, seven cases of stage I were below 1 year of age. Retroperitoneal lymph node dissection without postoperative systemic chemotherapy was implemented in 9 cases (5 cases of stage I and 4 cases of stage II), and only one was positive. RESULTS Among the 12 cases followed, 9 cases were alive (of these, 5 children < 1 year old, in stage I, underwent high ligation of internal spermatic cord vein and orchiectomy, with a survival time of 25 months to 10 years and 4 cases with radical retroperitoneal lymph node dissection). Three cases older than 1 year died of retroperitoneal lymph node and lung metastases. CONCLUSIONS For the high ligation of internal spermatic cord vein, orchiectomy is a kind of simple and effective treatment for children younger than 1 year with stage I, without recurrence and metastases. However, attention to the accuracy of staging and close observation are important aspects of the treatment.
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Affiliation(s)
- X-J Zhou
- Department of Urological Surgery, Central Hospital of Xuzhou, Xuzhou, Jiangsu, China.
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Qi H, Li J, Shao Q, Xu M, Fan T, Ma Z. Comparative Study of the Position and Volume of Related Anatomical Structures Between Quiet End-Inspiration and End-Expiration 3-Dimensional CT-Assisted With Active Breathing Control and Corresponding Phases in 4-Dimensional CT. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1351] [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: 11/16/2022]
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Ding Y, Li J, Wang W, Wang S, Fan T, Xu M, Shao Q, Ma Z. Displacement of the lumpectomy cavity defined by surgical clips and seroma based on 4D-CT scan for external-beam partial breast irradiation after breast-conserving surgery: a comparative study. Br J Radiol 2013; 86:20130416. [PMID: 23995875 DOI: 10.1259/bjr.20130416] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To compare the displacements of the lumpectomy cavity delineated by the surgical clips and the seroma based on four-dimensional CT (4D-CT) for external-beam partial breast irradiation (EB-PBI) after breast-conserving surgery (BCS). METHODS 14 breast cancer patients after BCS were recruited for EB-PBI and undertook 4D-CT simulation. On the 10 sets of the 4D-CT images, all the surgical clips in the cavity were delineated. The gross tumour volume (GTV) formed by the clips, the seroma, and both the clips and the seroma were defined as GTVc, GTVs and GTVc+s, respectively. The displacements of the centre of mass (COM) of the clips, GTVc, GTVs, GTVc+s and the selected clips in the three-dimensional (3D) directions were recorded and compared. RESULTS In the left-right, anterior-posterior and superior-inferior directions, the displacements were 2.20, 1.80 and 2.70 mm for the clip COM; 0.90, 1.05 and 1.20 mm for GTVc; 0.80, 1.05 and 0.80 mm for GTVs; and 0.90, 1.20 and 1.40 mm for GTVc+s, respectively. In the 3D directions, the displacements of the clip COM were greater than the GTVc, GTVs, GTVc+s, and the displacements of the clip COM, GTVc+s, GTVc and GTVs were significantly greater than the displacements of the selected clips (p<0.05). CONCLUSION The displacements of the clip COM were greater than that of the GTVc, GTVs, GTVc+s and the four selected clips. The optimal internal target volume should be defined based on the boundary displacements. ADVANCES IN KNOWLEDGE When the GTV was delineated using the clips and/or the seroma, there was displacement difference between the lumpectomy cavity centre and the boundary for the EB-PBI. The optimal internal target volume should be defined based on the boundary displacements of the lumpectomy cavity.
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Affiliation(s)
- Y Ding
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Jinan, China
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Wang W, Li J, Zhang Y, Li F, Xu M, Fan T, Shao Q, Shang D. Comparison of patient-specific internal gross tumor volume for radiation treatment of primary esophageal cancer based separately on three-dimensional and four-dimensional computed tomography images. Dis Esophagus 2013; 27:348-54. [PMID: 23796234 DOI: 10.1111/dote.12089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
To compare the target volume, position and matching index of the patient-specific internal gross tumor volume (IGTV) based on three-dimensional (3D) and four-dimensional (4D) computed tomography (CT) images for primary esophageal cancer. Twenty-nine patients with primary thoracic esophageal cancer underwent 3DCT and 4DCT scans during free breathing. IGTVs were constructed using three approaches: combining the gross target volumes from the 10 respiratory phases of the 4DCT dataset to produce IGTV10 ; IGTV2 was acquired by combining the two extreme phases; and IGTV3D was created from the 3DCT-based gross target volume by enlarging the 95th percentile of motion in each direction measured by the 4DCT. 0.16 cm lateral (LR), 0.14 cm anteroposterior (AP) and 0.29 cm superoinferior (SI) in the upper; 0.18 cm LR, 0.10 cm AP and 0.63 cm SI in the middle; and 0.40 cm LR, 0.58 cm AP and 0.82 cm in the lower thoracic esophagus could account for 95% of respiratory-induced tumor motion. The centroid position shift between IGTV10 and IGTV2 was all below 0.10 cm, and less than 0.20 cm between IGTV10 and IGTV3D . IGTV10 was bigger than IGTV2 ; the mean value of matching index for IGTV2 to IGTV10 was 0.87 ± 0.05, 0.85 ± 0.06 and 0.83 ± 0.05 for upper, middle and distal thoracic esophageal tumors, respectively, and just 0.57 ± 0.11, 0.56 ± 0.13 and 0.40 ± 0.03 between IGTV3D and IGTV10 . 4DCT-based IGTV10 is a reasonable patient-specific IGTV for primary thoracic esophageal cancer, and IGTV2 is considered as an acceptable alternative to IGTV10 . However, it seems unreasonable to use IGTV3D substitute IGTV10 .
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Affiliation(s)
- W Wang
- Department of Radiation Oncology, Shandong Tumor Hospital, Jinan, Shandong, China
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Xu Y, Diao L, Chen Y, Liu Y, Wang C, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Deng D, Narod SA, Xie Y. Promoter methylation of BRCA1 in triple-negative breast cancer predicts sensitivity to adjuvant chemotherapy. Ann Oncol 2013; 24:1498-505. [PMID: 23406733 DOI: 10.1093/annonc/mdt011] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [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] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND BRCA1 function is inactivated through BRCA1 promoter methylation in a substantial number of triple-negative breast cancers. We investigated the impact of BRCA1-methylation status on the efficacy of adjuvant chemotherapy in patients with triple-negative breast cancer or with non-triple-negative breast cancer. METHODS BRCA1 promoter methylation was assessed in 1163 unselected breast cancer patients. Methylation was evaluated using a methylation-specific PCR (MSP) assay. RESULTS In the subgroup of 167 triple-negative breast cancer patients who received adjuvant chemotherapy, patients with BRCA1-methylated tumors had a superior 10-year disease-free survival (DFS)(78% versus 55%, P = 0.009) and 10-year disease-specific survival (DSS) (85% versus 69%, P = 0.024) than those with BRCA1-unmethylated tumors, and BRCA1 methylation was an independent favorable predictor of DFS and DSS in a multivariate analysis in this subgroup [DFS: hazard ratio (HR) = 0.45; 95% confidence interval (CI) 0.24-0.84; P = 0.019; DSS: HR = 0.43; 95% CI = 0.19-0.95; P = 0.044]. In contrast, in 675 non-triple-negative breast cancer patients who received adjuvant chemotherapy, BRCA1 methylation was an unfavorable predictor of DFS and DSS in univariate analysis (DFS: HR = 1.56; 95% CI 1.16-2.12; P = 0.003; DSS: HR = 1.53; 95% CI = 1.05-2.21; P = 0.026). CONCLUSIONS Triple-negative breast cancer patients with BRCA1-methylated tumors are sensitive to adjuvant chemotherapy and have a favorable survival compared with patients with BRCA1-unmethylated triple-negative tumors.
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Affiliation(s)
- Y Xu
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Breast Center, Peking University Cancer Hospital & Institute, Beijing, PR China
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Wang W, Li J, Hu H, Fan T, Xu M, Shao Q. 4DCT-based Target Motion and Treatment Planning Variance for Whole Breast Radiation Therapy Account for Breathing Motion. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.620] [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: 10/27/2022]
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Wang W, Li J, Zhang Y, Fan T, Qi H, Xing J. Comparison of the Planning Target Volume Based on 3-dimensional CT and 4-dimensional CT Images of Thoracic Esophageal Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.819] [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: 10/27/2022]
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Li F, Li J, Zhang Y, Xu M, Shao Q, Fan T, Tian S. Comparison of the Planning Target Volume Based on Three-dimensional CT and Four-dimensional CT Images of Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1382] [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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Yao L, Liu Y, Li Z, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Xie Y. HER2 and response to anthracycline-based neoadjuvant chemotherapy in breast cancer. Ann Oncol 2011; 22:1326-1331. [DOI: 10.1093/annonc/mdq612] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [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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Lauder A, Cima M, Sachs E, Fan T. Three Dimensional Printing: Surface Finish and Microstructure of Rapid Prototyped Components. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-249-331] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThree Dimensional Printing is a process for rapid prototyping of functional components. Thin layers of powder are bound in selected areas by ink-jet printing of a liquid binder. Layers are added sequentially until a three dimensional part is completed. The unbound powder is then removed. The raster scan pattern and layering used in forming has an observable effect on the surface finish and microstructure of the part, as does the chemistry of the particular materials system used. Important phenomena include ballistic interaction of the jet with the powder bed and wicking of the binder. Process parameters such as layer height, flow rate, and powder density were studied. Microstructural examination of the printed components is also reported.
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Kabli N, Martin N, Fan T, Nguyen T, Hasbi A, Balboni G, O'Dowd BF, George SR. Agonists at the δ-opioid receptor modify the binding of µ-receptor agonists to the µ-δ receptor hetero-oligomer. Br J Pharmacol 2011; 161:1122-36. [PMID: 20977461 DOI: 10.1111/j.1476-5381.2010.00944.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND PURPOSE µ- and δ-opioid receptors form heteromeric complexes with unique ligand binding and G protein-coupling profiles linked to G protein α z-subunit (Gα(z) ) activation. However, the mechanism of action of agonists and their regulation of the µ-δ receptor heteromer are not well understood. EXPERIMENTAL APPROACH Competition radioligand binding, cell surface receptor internalization in intact cells, confocal microscopy and receptor immunofluorescence techniques were employed to study the regulation of the µ-δ receptor heteromer in heterologous cells with and without agonist exposure. KEY RESULTS Gα(z) enhanced affinity of some agonists at µ-δ receptor heteromers, independent of agonist chemical structure. δ-Opioid agonists displaced µ-agonist binding with high affinity from µ-δ heteromers, but not µ receptor homomers, suggestive of δ-agonists occupying a novel µ-receptor ligand binding pocket within the heteromers. Also, δ-agonists induced internalization of µ-opioid receptors in cells co-expressing µ- and δ-receptors, but not those expressing µ-receptors alone, indicative of µ-δ heteromer internalization. This dose-dependent, Pertussis toxin-resistant and clathrin- and dynamin-dependent effect required agonist occupancy of both µ- and δ-opioid receptors. In contrast to µ-receptor homomers, agonist-induced internalization of µ-δ heteromers persisted following chronic morphine exposure. CONCLUSIONS AND IMPLICATIONS The µ-δ receptor heteromer may contain a novel δ-agonist-detected, high-affinity, µ-receptor ligand binding pocket and is regulated differently from the µ-receptor homomer following chronic morphine exposure. Occupancy of both µ- and δ-receptor binding pockets is required for δ-agonist-induced endocytosis of µ-δ receptor heteromers. δ-Opioid agonists target µ-δ receptor heteromers, and thus have a broader pharmacological specificity than previously identified.
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Affiliation(s)
- N Kabli
- Centre for Addiction and Mental Health, Toronto, Ontario, Canada
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Fan Z, Li J, Wang T, Xie Y, Fan T, Lin B, Ouyang T. Abstract P1-01-27: Level III and Interpectoral Lymph Nodes Involvement in Breast Cancer with Positive Axillary Lymph Nodes after Neoadjuvant Chemotherapy. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p1-01-27] [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: In the era of sentinel node biopsy (SNB), mainly aimed at local control, the axillary dissection (AD) was performed for breast cancer with positive node. It was argued that only level I/II lymph nodes dissection might be inadequate because nodes involvement was found in level III and interpectoral region when axillary node was positive. It is necessary to assess the extent of AD after modern preoperative axillary staging. The aim of this study was to investigate the incidence and associated factors of node involvement in level III/interpectoral region. Methods: A consecutive series of 338 core needle biopsy confirmed T0-2 invasive breast cancer cases were included in this study. Axillary node metastases were proved by ultrasound guided needle biopsy (NB) if ultrasonographic abnormal node was detected prior to SNB or by SNB if no abnormal node was detected. Cases of negative NB but positive SNB with image abnormal node were excluded. Prior to AD included level III and interpectoral lymph nodes, 4 to 8 cycles of neoadjuvant chemotherapy with anthrocyclin and/or taxane regimen were completed for each case. The chi-square test was used to determine the relation between level III/interpectoral lymph nodes metastases and clinicopathological factors. Multivariate logistic regression was analyzed for covariate selection. Results: A median of 19 axillary nodes was harvested per case (range: 5-46, average: 19.2). The pathologic complete response rate of axillary nodes was 35.3% (70/198) in NB positive subgroup. Level III and interpectoral lymph nodes were harvested in 76.9% (260/338) of cases (range: 1-8, average: 1.9, median: 1) and 49.7% (168/338) of cases (range: 1-10, average: 1.6, median: 1), respectively. The incidence of positive level III and interpectoral lymph nodes were 8.9% (30/338) and 8.9% (30/338), respectively. Node involvement of level III/interpectoral region was found in 13.3% (45/338) of these cases. The incidence of node involvement in level III/interpectoral region of NB positive subgroup (14.6%, 29/198) was not significantly higher compared with SNB positive subgroup (11.4%, 16/140, P=0.391). Increasing tumor size was significantly correlated with increasing likelihood of node involvement in level III/interpectoral region (T0-1: 6.3% vs T2: 16.7%, P=0.008). In SNB positive T0-1 subgroup, there was no positive node found in level III/interpectoral region. Multivariate analysis showed that tumor size was the only independent factors predicting node involvement in level III/interpectoral region (OR=3.488, 95%CI:1.427-8.528, P=0.006).
Conclusions: The incidence of node involvement in level III/interpectoral region was 13.3% of nodes positive T0-2 breast cancer treated with neoadjuvant chemotherapy. Tumor size may be the predictor of node involvement in this region.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P1-01-27.
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Affiliation(s)
- Z Fan
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - J Li
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - T Wang
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - Y Xie
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - T Fan
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - B Lin
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
| | - T. Ouyang
- Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing, China
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Wang L, Baruah K, Fan T, Yu M, Bossier P. Influence of heat shock proteins induction in different yeast cell wall mutants on the protection against Vibrio campbellii infection in gnotobiotically grown Artemia franciscana (Kellogg). J Fish Dis 2010; 33:919-923. [PMID: 21504084 DOI: 10.1111/j.1365-2761.2010.01194.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- L Wang
- Department of Marine Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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Fan T, Yu J, Li J. Concurrent 3D-CRT with Different Dose Fractionation in Combination with Cisplatin-based Systemic Chemotherapy for Stage III NSCLC: A Randomized Trial Study. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dirikolu L, Chakkath T, Fan T, Mente NR. Synthesis of trans- and cis-4′-Hydroxylomustine and Development of Validated Analytical Method for Lomustine and trans- and cis-4′-Hydroxylomustine in Canine Plasma. J Anal Toxicol 2009; 33:595-603. [DOI: 10.1093/jat/33.9.595] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [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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Fan T, Liu Y. UP-1.050: The Influence of Retroperitoneal Laparoscopic Surgery on the Human Immunoglobulins, Complements, C-Reactive Protein ad Expression of ET-1 in Renal Tissue. Urology 2009. [DOI: 10.1016/j.urology.2009.07.497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Shi L, Dong B, Li Z, Lu Y, Ouyang T, Li J, Wang T, Fan Z, Fan T, Lin B, Wang Z, Xie Y. Expression of ER-a36, a novel variant of estrogen receptor a, and resistance to tamoxifen treatment in breast cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-3037] [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
Abstract #3037
Background: Recently, a 36 kDa variant of estrogen receptor a (ER-a66), ER-a36, has been identified and cloned. ER-a36 predominantly localizes on the plasma membrane and in the cytoplasm and mediates a membrane-initiated “nongenomic” signaling pathway. In this study, we investigated the association between ER-a36 expression and tamoxifen resistance in breast cancer patients.
 Methods: ER-a36 protein expression in tumors from 710 breast cancer patients with a median follow-up of 7.9 years was assessed using immunohistochemistry (IHC) assay. Survival curves were compared using the log-rank test and multivariate analysis was performed using Cox model. All statistical tests were two-sided.
 Results: Among the patients with ER-a66 positive tumors who received tamoxifen treatment (n=307), overexpression of ER-a36 was associated with poorer disease-free survival (DFS) and disease-specific survival (DSS) and remained as an unfavorable independent factor of survival in multivariate analyses (DFS: HR=2.27; 95% CI= 1.40 to 3.68; P=. 001; DSS: HR=2.42; 95% CI= 1.37 to 4.28; P= .002). In contrast, among patients with ER-a66 positive tumors who did not receive tamoxifen (n=129), ER-a36 expression was not associated with survival, indicating a correlation between ER-a36 expression and tamoxifen resistance. Furthermore, ER-a36 expression was not associated with survival in ER-a66 negative tumors whether the patients received tamoxifen (n=73) or not (n=149). Our in vitro experiments with MCF7/ER36 cells also confirmed that high ER-a36 expression resulted in tamoxifen resistance.
 Conclusions: Patients with ER-a66 positive tumors that also express high levels of ER-a36 are less likely to benefit from tamoxifen treatment. ER-a36 is an important predictive marker for tamoxifen therapy in ER-a66 positive breast cancer patients.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 3037.
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Affiliation(s)
- L Shi
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - B Dong
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - Z Li
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - Y Lu
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - T Ouyang
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - J Li
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - T Wang
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - Z Fan
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - T Fan
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - B Lin
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - Z Wang
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
| | - Y Xie
- 1 Breast Center, Peking University School of Oncology, Beijing, China
- 2 Creighton University Medical School, Omaha
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