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Surkalim DL, Clare PJ, Eres R, Gebel K, Bauman AE, Ding D. Exercise to socialize? Bidirectional relationships between physical activity and loneliness in middle-aged and older American adults. Am J Epidemiol 2024:kwae001. [PMID: 38319704 DOI: 10.1093/aje/kwae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 12/08/2023] [Indexed: 02/07/2024] Open
Abstract
Physical inactivity and loneliness are both associated with health risks and can affect each other through various social and behavioral mechanisms. However, current evidence on this relationship is equivocal and mostly based on cross-sectional data. This longitudinal study aims to determine whether current levels of physical activity (moderate- and vigorous-intensity) and loneliness are associated with future respective states of themselves and each other. Data from waves 6-14 (2002-2018) of the Health and Retirement Study were used (n=20,134) in a mixed-effects and random intercept cross-lagged panel model. Analysis showed that current loneliness and physical activity were associated with each future respective state. Additionally, weekly participation in moderate-intensity, but not vigorous-intensity, physical activity was associated with a lower likelihood of becoming lonely in the future (RR: 0.94; 95% CI: 0.90-0.99). However, changes in physical activity were not associated with deviation from a person's typical level of loneliness (vigorous-intensity mean deviation (MD): 0.00; 95% CI: -0.04-0.03, moderate-intensity MD: 0.01; 95% CI: -0.03-0.04). Loneliness was not associated with moderate- or vigorous-intensity physical activity in subsequent waves. This suggests that while lower physical activity levels can be associated with future loneliness, changing levels of physical activity has little impact on loneliness at the individual level.
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Affiliation(s)
- D L Surkalim
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre (D17), The University of Sydney, Camperdown, New South Wales, Australia
| | - P J Clare
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- National Drug and Alcohol Research Centre, UNSW Sydney, Sydney, New South Wales, Australia
| | - R Eres
- Neurodisability and Rehabilitation, Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, Victoria, Australia
| | - K Gebel
- School of Public Health, Faculty of Health, University of Technology Sydney, Ultimo, New South Wales, Australia
| | - A E Bauman
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre (D17), The University of Sydney, Camperdown, New South Wales, Australia
| | - D Ding
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia
- Charles Perkins Centre (D17), The University of Sydney, Camperdown, New South Wales, Australia
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Fairman AD, Walko PF, Ding D, Morris L, Boateng J, Murphy K, Terhorst L. Reliability and validity testing of the ASSIST functional performance index. Assist Technol 2023:1-8. [PMID: 37552786 DOI: 10.1080/10400435.2023.2245004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023] Open
Abstract
Reliability and validity testing of the ASSIST Functional Performance Index (AFPI) was conducted, focusing on persons with physical disabilities (PwPD). The AFPI was iteratively developed to assess persons' needs for Mainstream Smart Home Technologies (MSHT) as Assistive Technology (AT) and to measure the impact of a service delivery model for MSHT. The AFPI consists of 46 items organized by functional domains. A total of N = 22 PwPD completed the AFPI twice. The median response time between these two time points was four days. Test-retest reliability of overall scores was assessed using the Intraclass Correlation Coefficient model (ICC, 3.1). The weighted kappa coefficient was applied to conduct an item analysis, demonstrating moderate to substantial agreement in all but one of the items. During the second administration, validity was established by correlating the number of hours of assistance and total AFPI scores with the SCI-FI Self-Care and Basic Mobility Short Form Questionnaires. Results indicate that the AFPI demonstrates good to very good validity as an assessment tool and outcome measure in recommending and evaluating the impact of MSHT for PwPD. Future studies, including more participants and persons with cognitive and sensory disabilities, may further establish the clinical utility of the AFPI.
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Affiliation(s)
- A D Fairman
- Department of Occupational Therapy, Johnson & Wales University, Providence, Rhode Island, USA
- Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - P Foschi Walko
- Department of Occupational Therapy, Johnson & Wales University, Providence, Rhode Island, USA
| | - D Ding
- Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - L Morris
- Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - J Boateng
- Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - K Murphy
- Department of Occupational Therapy, Johnson & Wales University, Providence, Rhode Island, USA
- Occupational Therapy Department, West Bay Collaborative, Warwick, Rhode Island, USA
| | - L Terhorst
- Department of Occupational Therapy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Li S, Li L, Min S, Liu S, Qin Z, Xiong Z, Xu J, Wang B, Ding D, Zhao S. [Soybean isoflavones alleviate cerebral ischemia/reperfusion injury in rats by inhibiting ferroptosis and inflammatory cascade reaction]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:323-330. [PMID: 36946055 PMCID: PMC10034535 DOI: 10.12122/j.issn.1673-4254.2023.02.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
OBJECTIVE To explore the mechanism that mediates the effect of soybean isoflavones (SI) against cerebral ischemia/reperfusion (I/R) injury in light of the regulation of regional cerebral blood flow (rCBF), ferroptosis, inflammatory response and blood-brain barrier (BBB) permeability. METHODS A total of 120 male SD rats were equally randomized into sham-operated group (Sham group), cerebral I/R injury group and SI pretreatment group (SI group). Focal cerebral I/R injury was induced in the latter two groups using a modified monofilament occlusion technique, and the intraoperative changes of real-time cerebral cortex blood flow were monitored using a laser Doppler flowmeter (LDF). The postoperative changes of cerebral pathological morphology and the ultrastructure of the neurons and the BBB were observed with optical and transmission electron microscopy. The neurological deficits of the rats was assessed, and the severities of cerebral infarction, brain edema and BBB disruption were quantified. The contents of Fe2+, GSH, MDA and MPO in the ischemic penumbra were determined with spectrophotometric tests. Serum levels of TNF-α and IL-1βwere analyzed using ELISA, and the expressions of GPX4, MMP-9 and occludin around the lesion were detected with Western blotting and immunohistochemistry. RESULTS The rCBF was sharply reduced in the rats in I/R group and SI group after successful insertion of the monofilament. Compared with those in Sham group, the rats in I/R group showed significantly increased neurological deficit scores, cerebral infarction volume, brain water content and Evans blue permeability (P < 0.01), decreased Fe2+ level, increased MDA level, decreased GSH content and GPX4 expression (P < 0.01), increased MPO content and serum levels of TNF-α and IL-1β (P < 0.01), increased MMP-9 expression and lowered occludin expression (P < 0.01). All these changes were significantly ameliorated in rats pretreated with IS prior to I/R injury (P < 0.05 or 0.01). CONCLUSION SI preconditioning reduces cerebral I/R injury in rats possibly by improving rCBF, inhibiting ferroptosis and inflammatory response and protecting the BBB.
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Affiliation(s)
- S Li
- Department of Clinical Medicine, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - L Li
- Department of Pathophysiology, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - S Min
- Department of Pathophysiology, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - S Liu
- Department of Pathophysiology, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - Z Qin
- Department of Clinical Medicine, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - Z Xiong
- Department of Clinical Medicine, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - J Xu
- Department of Clinical Medicine, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - B Wang
- Department of Clinical Medicine, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - D Ding
- Department of Pathophysiology, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
| | - S Zhao
- Department of Pathophysiology, Bengbu Medical College, Bengbu 233000, China
- Key Laboratory of Basic and Clinical Cardiovascular and Cerebrovascular Diseases, Bengbu Medical College, Bengbu 233000, China
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Lei Q, Xiao Z, Wu W, Liang X, Zhao Q, Ding D, Deng W. The Joint Effect of Body Mass Index and Serum Lipid Levels on Incident Dementia among Community-Dwelling Older Adults. J Nutr Health Aging 2023; 27:1118-1126. [PMID: 37997734 DOI: 10.1007/s12603-023-2027-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/11/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES This study aimed to explore the joint effect of body mass index (BMI) and serum lipids levels on incident dementia. METHODS We prospectively followed up with 1,627 dementia-free community residents aged ≥60 for 5.7 years on average. At baseline, weight, and height were measured, and total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were detected in serum. Demographic characteristics were collected through questionnaires. Dementia was based on consensus diagnosis of neurologists and neuropsychologists using DSM-IV criteria. Additive Cox proportional model was used to assess the exposure-response relationship between BMI and serum lipid levels and dementia risk. Interactions and further classifications of BMI and serum lipid levels were further presented by bivariate surface models and decision-tree models. RESULTS The joint effects of TC with BMI, TG with BMI, and LDL-C with BMI on the risk of incident dementia shared a similar pattern, different from their independent exposure-response curves. The joint effect of HDL-C with BMI showed an S-surface but without statistical significance. Participants with TC<5.4 mmol/L and BMI<21 kg/m2 (Hazard Ratio(HR) 1.93, 95% Confidence Interval (CI) 1.05-3.53), TC<5.4 mmol/L and BMI≥21 kg/m2 (HR 1.73, 95% CI 1.09-2.72), and TC≥5.4 mmol/L and BMI<21 kg/m2 (HR 4.02, 95% CI 2.10-7.71) were identified to have the increased risk of incident dementia compared to those with TC≥5.4 mmol/L and BMI≥21 kg/m2. Participants with TG<1.7 mmol/L and BMI<21 kg/m2 had an increased risk of incident dementia compared to those with TG≥1.7 mmol/L and BMI≥21 kg/m2 (HR 1.98, 95%CI 1.17-3.3). Participants with LDL-C≥3.3 mmol/L and BMI<21 kg/m2 were identified to have an increased risk of incident dementia compared to those with LDL-C≥3.3 mmol/L and BMI≥21 kg/m2 (HR 3.33, 95%CI 1.64-6.78). CONCLUSIONS Our study showed that low BMI combined with low or high levels of serum lipids may increase the risk of dementia among older adults. This finding suggests the potential impacts of these two metabolic indexes on the risk of dementia.
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Affiliation(s)
- Q Lei
- Wei Deng, 138 Yixueyuan Rd., Department of Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China, ; Ding Ding, 12 Wulumuqi Zhong Rd., Institute of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China,
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Ge H, Cai J, Li D, Ding D, Jia L, Wei S, Liu Y. Half-Field Segmented VMAT Spares Organs at Risk from Postoperative Left Breast Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.746] [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: 10/31/2022]
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Dahl J, Rasmussen LD, Ding D, Westra J, Wijns W, Tu S, Christiansen E, Eftekhari A, Li G, Winther S, Bottcher M. Diagnostic performance of on-site computation of quantitative flow ratio by a coronary computed tomography angiography based algorithm: comparison of distal and lesion-specific measurements. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Guidelines recommend secondary ischemia assessment following a coronary computed tomography angiography (CTA) with suspected obstructive coronary artery disease (CAD). Coronary CTA-derived quantitative flow ratio (CT-QFR) is an on-site technique performed on acquired CTA images that estimates the functional severity of a coronary stenosis. However, CT-QFR measurements are available throughout the coronary vessel with no clear recommendations as to which specific values should be used for identifying obstructive CAD, e.g. most distal or lesion-specific values.
Purpose
First, to investigate the feasibility of CT-QFR and the correlation and agreement with invasive fractional flow reserve (FFR). Secondly, to compare the diagnostic performance of distal versus lesion-specific CT-QFR for identifying obstructive CAD defined by invasive coronary angiography (ICA) with FFR.
Methods
A total of 1732 prospectively included patients with symptoms suggestive of CAD referred for CTA were included. All patients with ≥50% diameter stenosis (DS) on CTA were subsequently referred for ICA with conditional FFR in lesions with 30–89%DS. Obstructive CAD was defined by ICA as FFR ≤0.80 or high-grade stenosis by visual assessment (≥90%DS). A blinded analysis of CT-QFR was performed in patients referred to ICA with measurements at the distal end of a vessel (distal CT-QFR) and 1 cm distal to stenotic lesions on CTA (lesion-specific). CT-QFR ≤0.80 was defined as abnormal. For correlation analyses to invasive FFR, CT-QFR was assessed corresponding to the position of the invasive pressure sensor.
Results
In total, 445/1732 (25%) patients had suspected obstructive CAD at CTA and underwent subsequent ICA. CT-QFR analysis was feasible in 423/445 (95%) patients. CT-QFR correlated (Pearson's rho 0.54, p<0.001) and agreed (mean difference –0.02±0.09) to FFR with CT-QFR overestimating FFR (Fig. 1). Obstructive CAD was identified in 190/423 (44%) patients by ICA. Distal and lesion-specific CT-QFR classified 196 (46%) and 171 (40%) patients as abnormal, respectively. Areas under the receiver-operating characteristic curves for distal versus lesion-specific CT-QFR were similar (0.86 (95% CI: 0.82–0.89) vs. 0.86 (0.82–0.90), p=0.80). Sensitivities for distal and lesion-specific CT-QFR were 78% (95% CI: 71–84) vs. 74% (67–80), p=0.01, respectively, and specificities 79% (95% CI: 74–84) vs. 87% (82–91), p<0.01, respectively. Distal and lesion-specific CT-QFR had similar diagnostic accuracy (79 (95% CI: 75–83), vs. 81 (77–85), p=0.07) (Fig. 2).
Conclusion
In patients with suspected obstructive CAD on CTA, non-invasive estimation of FFR using CT-QFR is feasible with moderate correlation and good agreement with invasive FFR. Overall diagnostic performance of distal and lesion-specific values for discriminating obstructive CAD by invasive FFR are similar. The use of CT-QFR could therefore potentially reduce the need for referral to invasive angiography after CTA.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Aarhus UniversityRegion Mid Jutland
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Affiliation(s)
- J Dahl
- Goedstrup Hospital , Herning , Denmark
| | | | - D Ding
- National University of Ireland, The Lambe Institute for translational Medicine and Curam , Galway , Ireland
| | - J Westra
- Aarhus University Hospital, Department of Cardiology , Aarhus , Denmark
| | - W Wijns
- National University of Ireland, The Lambe Institute for translational Medicine and Curam , Galway , Ireland
| | - S Tu
- Shanghai Jiao Tong University, Biomedical Instrument Institute, School of Biomedical Engineering , Shanghai , China
| | - E Christiansen
- Aarhus University Hospital, Department of Cardiology , Aarhus , Denmark
| | - A Eftekhari
- Aalborg University Hospital, Department of Cardiology , Aalborg , Denmark
| | - G Li
- Shanghai Jiao Tong University, Biomedical Instrument Institute, School of Biomedical Engineering , Shanghai , China
| | - S Winther
- Goedstrup Hospital , Herning , Denmark
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Dahl J, Ramussen LD, Ding D, Westra J, Wijns W, Tu S, Christiansen E, Eftekhari A, Gormsen LC, Ejlersen JA, Winther S, Bottcher M. Comparison of second-line on-site computed quantitative flow ratio from coronary computed tomography angiography to PET perfusion imaging for detecting obstructive coronary artery disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
In patients with suspected obstructive coronary artery disease (CAD) on coronary computed tomography (CTA), guidelines endorse second-line selective testing for hemodynamic evaluation of suspected CAD. A variety of non-invasive modalities are available, and myocardial perfusion imaging with Rubidium-82 positron emission tomography (PET) is an established method with high diagnostic performance. Recently, an on-site method estimating computed tomography-derived quantitative flow ratio (CT-QFR) showed promising results for discriminating obstructive CAD. However, no study has compared the diagnostic performances of PET and CT-QFR.
Purpose
To assess a possible non-inferiority of CT-QFR compared to PET in patients with suspected obstructive CAD at CTA using invasive coronary angiography (ICA) with fractional flow reserve (FFR) as reference.
Methods
Patients (n=1732, 57% males, age 59±9.5) referred on a clinical indication with symptoms suggestive of obstructive CAD underwent routine CTA. Patients with ≥50% diameter stenosis (DS) on CTA were referred for PET and subsequent ICA with FFR. CT-QFR was analyzed post-hoc blinded to PET and ICA results.
Abnormal CT-QFR was defined as CT-QFR ≤0.80 in any vessel with a diameter ≥1.5mm. An independent core-lab evaluated PET scans as abnormal/normal with optional analyst-dependent application of pre-specified criteria; summed stress score of ≥4 in ≥2 contiguous segments, vessel-specific myocardial blood flow (MBF) <2.00 ml/g/min, global myocardial blood flow reserve ≤1.8, and/or transient ischemic dilatation ratio >1.13. Obstructive CAD was defined as ICA with FFR ≤0.80 or high-grade stenosis (≥90% DS).
Results
In total, 445/1732 patients (25%) had suspected obstructive CAD on CTA of whom 400/445 patients (90%) underwent subsequent PET and ICA. CT-QFR was successfully analysed in 383/400 (96%) patients classifying 174/383 (45%) patients as having disease. In comparison, PET classified 130/383 (34%) patients as having disease. In total, obstructive CAD by ICA with FFR was identified in 162 (42%) patients.
There was no significant difference in area under the receiver-operating characteristic curves for CT-QFR compared to the best performing PET metric (lowest vessel-specific MBF); 0.84 (95% CI 0.80–0.89) vs. 0.81 (0.77–0.85), p=0.19)) (Fig. 1). Overall diagnostic accuracy of CT-QFR versus PET was similar (78% (95% CI 74–82) vs. 77% (72–81), p=0.70. Sensitivities for CT-QFR and PET were 78% (71–84) and 63% (55–70), p<0.01, respectively, and specificities 78% (72–84) and 87% (82–91), p=0.01, respectively (Fig. 2). Three-vessel or left main disease on ICA was correctly identified in 30/31 patients by both CT-QFR and PET.
Conclusion
In patients with suspected obstructive CAD by CTA, second-line CT-QFR was non-inferior to PET for discriminating obstructive CAD by invasive FFR; Although diagnostic accuracy was similar, CT-QFR demonstrated higher sensitivity while PET showed higher specificity
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Aarhus University PhD fellowshipRegion Mid Health Research Foundation
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Affiliation(s)
- J Dahl
- Goedstrup Hospital , Herning , Denmark
| | | | - D Ding
- National University of Ireland, The Lambe Institute for translational Medicine and Curam , Galway , Ireland
| | - J Westra
- Aarhus University Hospital, Department of Cardiology , Aarhus , Denmark
| | - W Wijns
- National University of Ireland, The Lambe Institute for translational Medicine and Curam , Galway , Ireland
| | - S Tu
- Shanghai Jiao Tong University, Biomedical Instrument Institute, School of Biomedical Engineering , Shanghai , China
| | - E Christiansen
- Aarhus University Hospital, Department of Cardiology , Aarhus , Denmark
| | - A Eftekhari
- Aalborg University Hospital, Department of Cardiology , Aalborg , Denmark
| | - L C Gormsen
- Aarhus University Hospital, Department of Nuclear Medicine and PET , Aarhus , Denmark
| | - J A Ejlersen
- Viborg Hospital, Department of Clinical Physiology , Viborg , Denmark
| | - S Winther
- Goedstrup Hospital , Herning , Denmark
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Kotoku N, Ding D, Ninomiya K, Masuda S, Kageyama S, Piazza N, Wijns W, Tu S, Onuma Y, Serruys PW. Murray law-based quantitative flow ratio for assessment of left main bifurcation derived from a single fluoroscopic angiographic view as compared to FFRCT. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In patients with complex CAD, the presence of left main (LM) disease is an important prognostic factor in assessing the risk balance between PCI and CABG. Functional assessment has become standard of care to evaluate the significance of coronary stenosis and to justify the performance of PCI in the contemporary practice. FFRCT is a well-established method based on 3D reconstruction of coronary artery derived from CCTA. The Murray law-based quantitative flow reserve (μQFR) is a novel computational method of invasive angiography relying on a single angiographic view that takes into account side branches diameters to compute fractal flow division. The aim of the current analysis is to evaluate in patients with complex CAD the feasibility of μQFR in LM bifurcation and its diagnostic concordance with FFRCT. The impact of the optimal viewing angle defined by CCTA on the physiological assessment of the LM bifurcation using a single angiographic view was also evaluated.
Methods
In 299 consecutive patients with 3-vessel disease with or without LM coronary artery disease, up to 3 analyzable fluoroscopic projections per patient were analysed with μQFR retrospectively. FFRCT and μQFR were measured at 3 fiducial landmark points: i) point of LM bifurcation (POB); ii) proximal LAD 10 mm distal to POB; ii) proximal LCX 10 mm distal to POB. CCTA-based “optimal viewing angle” of LM bifurcation are computed by creating a 3-point closed spline involving the LM, LAD, and LCX at 5mm from the POB and subsequently by reconstructing the “en face” fluoroscopic viewing angle of the spline. The en face viewing angle provides an optimal assessment of the bifurcation geometry [1]. In terms of Rx gantry angulation, the closest angiographic projection to the optimal viewing angle derived from CCTA was defined as the “best fluoroscopic projection” for each patient.
Results
In 299 patients, 793 projections were analysed with μQFR and compared to FFRCT. Single view μQFR was analyzable in 100%. Correlation and agreement between μQFR and FFRCT for 793 projections in 299 patients are shown in Figure 1A, 2A. The Spearman's correlation coefficient showed moderate correlations at POB (r=0.481, p<0.001) and LCX (r=0.584, p<0.001), and strong correlation at LAD (r=0.642, p<0.001). Correlation and agreement between μQFR and FFRCT for best projections from each patient are shown in Figure 1B, 2B. Correlations were improved in the best projections with the following Spearman's correlation coefficient: at POB (r=0.522, p<0.001), LCX (r=0.622, p<0.001), and LAD (r=0.695, p<0.001).
Conclusion
Computation of μQFR from a single angiographic view has a high feasibility. Tailored optimal fluoroscopic view is essential for the physiological assessment of the LM bifurcation using a single angiographic view. Evaluation of diagnostic accuracy of μQFR warrants further analysis of the LMCAD after prospective planning of the optimal fluoroscopic view based on the selection of the best CCTA 3D view.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Kotoku
- National University of Ireland , Galway , Ireland
| | - D Ding
- National University of Ireland , Galway , Ireland
| | - K Ninomiya
- National University of Ireland , Galway , Ireland
| | - S Masuda
- National University of Ireland , Galway , Ireland
| | - S Kageyama
- National University of Ireland , Galway , Ireland
| | - N Piazza
- McGill University Health Centre , Montreal , Canada
| | - W Wijns
- National University of Ireland , Galway , Ireland
| | - S Tu
- Shanghai Jiao Tong University , Shanghai , China
| | - Y Onuma
- National University of Ireland , Galway , Ireland
| | - P W Serruys
- National University of Ireland , Galway , Ireland
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Reddy A, Hill C, Sehgal S, Ding D, Zheng L, He J, Herman J, Meyer J, Narang A. KRAS and NOTCH1/2 Mutations are Associated With Pathologic and Clinical Outcomes in Localized Pancreatic Cancer Treated With Neoadjuvant Chemotherapy and Stereotactic Body Radiotherapy Followed by Surgical Exploration. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.426] [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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10
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Liu S, Li Y, Zhang J, Zhang H, Wang Y, Chuah C, Tang Y, Lam J, Kwok R, Ou H, Ding D, Tang B. A two-in-one Janus NIR-II AIEgen with balanced absorption and emission for image-guided precision surgery. Mater Today Bio 2021; 10:100087. [PMID: 33889836 PMCID: PMC8050777 DOI: 10.1016/j.mtbio.2020.100087] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023] Open
Abstract
Fluorescence imaging in the near-infrared II (NIR-II, 1000-1700 nm) region opens up new avenues for biological systems due to suppressed scattering and low autofluorescence at longer-wavelength photons. Nonetheless, the development of organic NIR-II fluorophores is still limited mainly due to the shortage of efficient molecular design strategy. Herein, we propose an approach of designing Janus NIR-II fluorophores by introducing electronic donors with distinct properties into one molecule. As a proof-of-concept, fluorescent dye 2 TT-m, oC6B with both twisted and planar electronic donors displayed balanced absorption and emission which were absent in its parent compound. The key design strategy for Janus molecule is that it combines the merits of intense absorption from planar architecture and high fluorescence quantum yield from twisted motif. The resulting 2 TT-m, oC6B nanoparticles exhibit a high molar absorptivity of 1.12 ⨯104 M-1 cm-1 at 808 nm and a NIR-II quantum yield of 3.7%, displaying a typical aggregation-induced emission (AIE) attribute. The highly bright and stable 2 TT-m, oC6B nanoparticles assured NIR-II image-guided cancer surgery to resect submillimeter tumor nodules. The present study may inspire further development of molecular design philosophy for highly bright NIR-II fluorophores for biomedical applications.
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Affiliation(s)
- S. Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Y. Li
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - J. Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - H. Zhang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Y. Wang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - C. Chuah
- Institute for NanoScale Science and Technology, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - Y. Tang
- Institute for NanoScale Science and Technology, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
| | - J.W.Y. Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - R.T.K. Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - H. Ou
- Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - D. Ding
- Key Laboratory of Bioactive Materials Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - B.Z. Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Life Science and State Key Laboratory of Molecular Neuroscience, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Center for Aggregation-Induced Emission SCUT-HKUST Joint Research Institute State Key Laboratory of Luminescent Materials and Devices South China University of Technology, Guangzhou, 510640, China
- AIE Institute, Guangzhou Development District, Huangpu, Guangzhou, 510530, China
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11
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Yusuf M, Gaskins J, Burton E, May M, Williams B, Ding D, Miller D, Woo S. Dose-Size Response Relationship For Melanoma Brain Metastases Treated With Stereotactic Radiosurgery In The Era Of Immunotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.137] [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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12
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Yang WF, Qin N, Song X, Jiang C, Li T, Ji P, Li Y, Ding D, Wang C, Dai J, Jin G, Chen TW, Chang YS, Ouyang DQ, Liao GQ, Hu Z, Chang KP, Su YX, Ma H. Genomic Signature of Mismatch Repair Deficiency in Areca Nut-Related Oral Cancer. J Dent Res 2020; 99:1252-1261. [PMID: 32527169 DOI: 10.1177/0022034520930641] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Areca nut (AN) chewing contributes to an increase of oral squamous cell carcinoma (OSCC) cases in South and Southeast Asia; however, genomic events underlying the carcinogenesis process of AN-related OSCC remain unclear. Here, we comprehensively describe the genomic and transcriptome alterations of 113 Chinese OSCC patients (89 AN related and 24 AN negative) by whole-exome sequencing and RNA sequencing, and we compared the genomic differences between AN-related and AN-negative samples by integrating sequencing data of 325 OSCC patients from The Cancer Genome Atlas database and 50 from a published Taiwanese study. We identified 11 significantly mutated genes for OSCC, including 4 novel ones (ATG2A, WEE1, DST, and TSC2), of which WEE1 and ATG2A mutated with significantly higher rates in AN-related samples (P = 0.04 and P = 0.003, respectively). Mutational signature analysis revealed that AN-related OSCCs were specially characterized by the genomic signature of mismatch repair deficiency (dMMR), which could also predict the prognosis status of AN-related OSCC. In addition, an elevated PD-L1 expression was also observed in both AN-related patients (P = 3.71 × 10-11) and those with a high dMMR level (P = 1.99 × 10-4). Further differential expression analysis and in vitro experiments confirmed the role of dMMR in the development of OSCC induced by AN exposure. Taken together, this study first revealed the molecular profiles and highlighted the role of dMMR in AN-related OSCC among the Chinese population and identified that AN-related OSCC may represent a potential cohort for effective anti-PD-1/L1 immunotherapy.
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Affiliation(s)
- W F Yang
- Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - N Qin
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - X Song
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - C Jiang
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, Mainland China
| | - T Li
- Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, Mainland China
| | - P Ji
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - Y Li
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - D Ding
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - C Wang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China.,Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Mainland China
| | - J Dai
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - G Jin
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - T W Chen
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Y S Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - D Q Ouyang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Mainland China
| | - G Q Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, Mainland China
| | - Z Hu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
| | - K P Chang
- Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Y X Su
- Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - H Ma
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Mainland China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, Mainland China
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13
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Zhang L, Ding D, Gallagher R. P202 Are Chinese immigrants with CVD ready to use web-based health information: a comparative study in Australia. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Immigrant populations often have poor access to cardiovascular disease (CVD) secondary prevention due to linguistic and cultural barriers. Web-based interventions are effective in risk reduction and lifestyle modification and may reach those hard-to-reach populations such as Chinese immigrants. However, less is known about the current use of web-based health information and confidence in use.
Purposes
We compared the use of web-based health information and confidence in use between Chinese immigrants with CVD to those with and without another chronic condition; and explored the factors associated with the confidence in utilization.
Methods
Chinese immigrants with CVD, musculoskeletal conditions, or no chronic condition were recruited from Chinese communities across New South Wales, Australia. E-health literacy scale was used to explore the perceptions of web-based health information and confidence in use. Demographic, clinical data and use of web-based health information were collected and health literacy was measured using a validated single screening question.
Results
Participants (n = 90 CVD, n = 87 musculoskeletal, n = 154 no chronic conditions) were aged mean 59 ± 16 years, mostly female (69%), 75% reported fair to poor English proficiency, and 51% had completed university. The most accessed web-based health information concerned lifestyle (60%), health resources (45%), diseases (35%), and medications (30%). More than half (54%) were confident in using web-based health information.
Participants with CVD were the oldest (71 vs 65 vs 49 years, p<.001) and participants with any chronic condition had less education (p<.001) and English proficiency (p<.001) than the healthy group. Approximately half of the participants with CVD perceived web-based health information as useful (48%) and important (46%), and the most accessed information concerned lifestyle and medication (56% and 32%). Participants with CVD accessed medication information more often than musculoskeletal group (32% vs 23%), but there was no difference in accessing other information. Both chronic groups showed no difference in accessing web-based medication and lifestyle information compared with the healthy group. Confidence in using web-based health information was similar for CVD and musculoskeletal groups and lower than the healthy group (p<.001).
Participants with the least confidence to use web-based health information were older (p=.016), female (p=.014), had less than university level education (p<.001), and lower health literacy (p=.001) after adjusting for age, gender, education, English proficiency, employment status, social support, health literacy, and number of chronic conditions.
Conclusions
There is a strong potential to provide web-based medication and lifestyle information for Chinese immigrants with CVD if support is provided to improve confidence in this technology for older, women, and those with less education and/or health literacy.
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Affiliation(s)
- L Zhang
- University of Sydney, Sydney Nursing School, Sydney, Australia
| | - D Ding
- University of Sydney, School of Public Health, Sydney, Australia
| | - R Gallagher
- University of Sydney, Sydney Nursing School, Sydney, Australia
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14
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Qi GW, Zheng J, Ma YY, Feng JY, Chen L, Zhao J, Ding D. [Clinicopathological study of clear cell sarcoma of the kidney]. Zhonghua Bing Li Xue Za Zhi 2019; 48:799-801. [PMID: 31594046 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- G W Qi
- Department of Pathology, Hangzhou Children's Hospital, Zhejiang Province, Hangzhou 310014, China
| | - J Zheng
- Department of Preventive Health Care, Hangzhou Children's Hospital, Zhejiang Province, Hangzhou 310014, China
| | - Y Y Ma
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J Y Feng
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - L Chen
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - J Zhao
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - D Ding
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
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15
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Feng JY, Chen L, Ma YY, Zhao J, Ding D. [Role of a liver pathology standardized scoring system in the diagnosis of congenital biliary atresia and its relationship with prognosis]. Zhonghua Bing Li Xue Za Zhi 2019; 48:755-761. [PMID: 31594038 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the diagnostic value of a histologic scoring system in congenital biliary atresia and its prognostic relevance. Methods: From January 2017 to June 2018 at Children's Hospital of Fudan University, 172 wedge liver biopsy specimens were obtained from infants with neonatal cholestasis [119 patients with congenital biliary atresia (CBA) and 53 patients with non-obstructive cholestasis as control]. A pathologist, single-blinded to the final diagnosis, made the histological diagnosis individually based on an 8-feature (portal ductal proliferation, bile duct reaction, bile plugs in portal ductules, liver fibrosis, edema in portal region, cholestasis, inflammatory cells infiltration in portal region, and ductal plate malformation), 21-point scoring system. Results: The main pathologic changes of biliary atresia were hepatocyte cholestasis, hyperplasia of bile ducts, fibrosis and infiltration of inflammatory cells in the portal area. There were significant difference in the degree of portal edema, bile duct hyperplasia and fibrosis between two groups (P<0.01). In addition, there were characteristic bile duct thrombosis in 97.5%(116/119) of the cases and abnormal development of bile duct plate in 9.2%(11/119) of the cases. Compared with non-CBA infant cholestasis group, the difference was statistically significant (P<0.05). The scoring system has high sensitivity, specificity (both 94.1%) and accuracy (94.3%) in the diagnosis of CBA. A score equal to or more than 11 points supported a diagnosis of CBA; whereas a score less than 11 points might suggest cholestasis. The degree of hepatic fibrosis and ductal plate malformation were related to prognosis. Conclusions: The liver pathology scoring system (8-feature, 21-point) is more accurate in diagnosing CBA than previous methods, which may guide the clinicopathological diagnosis. This histological scoring system also helps to assess the prognosis of CBA.
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Affiliation(s)
- J Y Feng
- Department of Pathology, Children's Hospital of Fudan University, Shanghai 201102, China
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16
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Gong F, Zhao F, Cheng SL, Ding D, Zhang BW, Li XL, Huang YL. Effect of insulin-like growth factor-1 on promoting healing of skin ulcers in diabetic rats. J BIOL REG HOMEOS AG 2019; 33:687-694. [PMID: 31162036] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
To investigate the effect of exogenous insulin-like growth factor-1 (IGF-1) on the healing of skin ulcers in diabetic rats, male Sprague Dawleys (SD) rats with back skin ulcers were selected and divided into control group, model group and IGF-1 treatment group which received different doses of IGF-1 (0.5, 1.0, 1.5, and 2.0mg/L). The results showed that the healing speed of the skin ulcers was significantly affected by IGF-1, which reduced the size of wound (P less than 0.05). The expression of MMP-9 was enhanced while the expression of TIMP-1 was decreased in diabetic rats with skin ulcers. The IGF-1 treatment helped to re¬store the normal expression of both MMP-9 and TIMP-1 in diabetic rats with skin ulcers, and diabetic skin ulcers in the 1.5 mg/L IGF-1 group showed the best healing. Histological examination showed that after 20 days, fibroblasts in the IGF-1 experimental group with an appropriate concentration increased and the numbers of fibroblasts and capillaries were significantly higher than those of the other groups. Moreover, there were obvious wound surface contractions and re-epithelialization, and the new epithelium moved to the center of the wound faster. Therefore, it is concluded that an appropriate concentration of IGF-1 can significantly promote the healing of skin ulcers in diabetic rats.
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Affiliation(s)
- F Gong
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - F Zhao
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - S L Cheng
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - D Ding
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - B W Zhang
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - X L Li
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
| | - Y L Huang
- Department of Orthopaedics, People's Hospital of Autonomous Region of Ningxia Medical University, Yinchuan City, Ningxia Autonomous Region, China
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17
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Zhang L, Ding D, Neubeck L, Gallagher R. Readiness of Chinese Immigrants Diagnosed with CVD to use Web-based Health Information. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Wang F, Chen Z, Davagnanam I, Hoskote C, Ding D, Wang W, Yang B, Wang Y, Wang T, Li W, Sander JW, Kwan P. Comparing two classification schemes for seizures and epilepsy in rural China. Eur J Neurol 2018; 26:422-427. [PMID: 30414301 DOI: 10.1111/ene.13857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 11/05/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE The International League against Epilepsy (ILAE) updated the classifications of seizures and epilepsies in 2017. The 2017 classifications were compared with the 1980s classifications in rural China. METHODS People with epilepsy receiving treatment under the National Epilepsy Control Programme were recruited from rural areas in China. Their seizures and epileptic syndrome were classified using the 1980s ILAE classification system and then re-classified according to the 2017 system. Differences in seizure, epilepsy and aetiology classifications were identified. RESULTS A total of 597 individuals (58% males, aged 6-78 years) were included. Amongst them 535 (90%) had a single seizure type, 57 (9.55%) had two types and five (0.84%) had three. There was complete agreement between the 1981 and 2017 classifications for the 525 individuals with focal seizures. Seizures originally classified as generalized in 10 of 65 individuals were re-classified as unknown in the 2017 classification. Compared to the 1980s classifications, the proportion of individuals with unknown seizures and unknown epilepsy increased from 1.2% (7/597) to 2.8% (17/597, P = 0.002), and unknown aetiology increased from 32% (189/597: 182 cryptogenic and seven unclassified) to 39% (230/597; P < 0.001) in the 2017 classifications. CONCLUSIONS The 1980s and 2017 classifications had 100% agreement in classifying focal seizures and epilepsy in rural China. A small but significant proportion of generalized seizures and epilepsy and aetiologies classified in the old classifications were re-classified to unknown in the new classifications. These results highlight the need for improvement in clinical evaluation of people with epilepsy in resource-poor settings.
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Affiliation(s)
- F Wang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia
| | - Z Chen
- Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - I Davagnanam
- Academic Department of Neuroradiology, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, London, UK
| | - C Hoskote
- Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, London, UK
| | - D Ding
- Fudan University, Shanghai, China
| | - W Wang
- Beijing Neurosurgical Institute, Beijing, China
| | - B Yang
- Jiaozuo People's Hospital, Henan, China
| | - Y Wang
- Ningxia Medical University, Ningxia, China
| | - T Wang
- Jincheng Emergency Medical Rescue Center, Jincheng, China
| | - W Li
- Affiliated Second Hospital, Hebei Medical University, Hebei, China
| | - J W Sander
- NIHR University College London Hospitals, Biomedical Research Centre, UCL Institute of Neurology, London, UK.,Chalfont Centre for Epilepsy, Chalfont St Peter, UK.,Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands
| | - P Kwan
- Department of Medicine, Royal Melbourne Hospital, University of Melbourne, Parkville, VIC, Australia.,School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia.,Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, China.,Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
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Wang J, Corazzini KN, Xu H, Wei S, McConnell ES, Ding D, Wu B. LIVING WITH COGNITIVE IMPAIRMENT IN CHINA: EXPLORING DYADIC EXPERIENCES THROUGH A PERSON-CENTERED CARE LENS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Wang
- Duke University, Durham, North Carolina, United States
| | | | - H Xu
- Duke University School of Nursing, Durham, NC, USA; Duke Global Health Institute, Durham, NC, USA
| | - S Wei
- Duke University School of Nursing, Durham, NC, USA
| | | | - D Ding
- Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - B Wu
- New York University Rory Meyers College of Nursing, New York, NY, USA
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20
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Yang Y, Liu YH, Cheng Q, Cheng Z, Wu SH, Ding D, Xu SC. [Application of MDCT and post-processing in children with tracheal foreign body]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:1492-1495. [PMID: 29798101 DOI: 10.13201/j.issn.1001-1781.2017.19.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Indexed: 11/12/2022]
Abstract
Objective:To explore the clinical value of MDCT and post-processing in children with suspected foreign body in trachea.Method:Two hundred patients with suspected tracheal foreign body were treated with 64-slice spiral CT (MDCT) and simulated endoscopic imaging,then compared with seen in bronchoscopy; Compare the results of MDCT and post-processing with the coincidence of intraoperative findings.Result:One hundred and eighty-four cases of positive children were examined by MDCT postprocessing technique and bronchoscopy,179 cases were obstructed by exogenous foreign body,5 cases were phlegm thrombosis (endogenous foreign body) obstruction; 16 cases of children with no foreign body diagnosed by MDCT post-processing technique were also examined by bronchoscopy. The results showed that there was a foreign body in 1 case,and the foreign body was located in the pharyngeal cleft (watermelon spermoderm),and the remaining 15 cases had no foreign body. MDCT and post-treatment techniques for children with tracheal foreign body diagnosis of 99.4% sensitivity,specificity of 75%.There was no significant difference in the detection rate of foreign body between the two techniques of MDCT and post-processing technique and bronchoscopy (P>0.05). Examed by MDCT and postprocessing,we can understand the specific location and size of foreign body,nature,shape preoperatively.Conclusion:Although MDCT and post-processing techniques can not be used to treat tracheal foreign bodies,but the diagnostic rate of bronchial foreign bodies is comparable to that of bronchoscopy. We could apply MDCT examination and post processing before the bronchoscopy,for foreign body inhalation history is not clear,or suspected airway foreign body. We can improve the level of diagnosis and treatment through guiding the operation of bronchoscopy focus.
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Affiliation(s)
- Y Yang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Medical University of Anhui,Hefei,230022,China
| | - Y H Liu
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Medical University of Anhui,Hefei,230022,China
| | - Q Cheng
- Department of Otorhinolaryngology,Children's Hospital of Anhui Province
| | - Z Cheng
- Department of Otorhinolaryngology,Children's Hospital of Anhui Province
| | - S H Wu
- Department of Otorhinolaryngology,Children's Hospital of Anhui Province
| | - D Ding
- Department of Otorhinolaryngology,Children's Hospital of Anhui Province
| | - S C Xu
- Department of Otorhinolaryngology,Children's Hospital of Anhui Province
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Ding D, Zhao F, Huang YL, Li XL, Gong F, Yao ZC, Zhang BW, Yang ZY, Ma JM, Shen J, Wen P. [Effects of sural nerve nutrition vess els-supported flap for reconstruction of distal lower leg and ankle soft tissue defects]. Zhonghua Yi Xue Za Zhi 2018; 98:842-845. [PMID: 29609267 DOI: 10.3760/cma.j.issn.0376-2491.2018.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of sural nerve nutrition vessels-supported flap for reconstruction of distal lower leg and ankle soft tissue defects. Methods: From June 2014 to June 2017, 37 patients with calf distal and ankle soft tissue defect were repaired with sural nerve nutrition vessels-supported flap, of them 12 cases with calf distal soft tissue defect wounds and 25 cases with ankle soft tissue defect wounds.The scope of flaps was 9 cm×4 cm to 18 cm×9 cm, anti-infection, anti-freezing and dressing treatments were carried out after operation.The results of two-point discrimination among reexamination were recorded. Results: All the flaps survived without ulcer and effusion, only 1 flap for reconstruction of medial malleolus swelled and deactivated at the beginning while it recovered with proper dressings.During the follow-up periods, all the flaps kept favorable feelings, aspects and functions, and the two-point discrimination was 5 to 15 mm [averaged (11.2±1.7) mm]. Conclusion: Sural nerve nutrition vessels-supported flap brings significant effects with excellent safety and reliability in repairing calf and ankle soft tissue defects.
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Affiliation(s)
- D Ding
- Department of Hand and Foot Microsurgery for Reconstruction, the First Affiliated Hospital of Northwest University for Nationalities (the Affiliated Ningxia Peoples Hospital of Ningxia Medical University), Yinchuan 750003, China
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Zhou X, Wang C, Ding D, Chen Z, Peng Y, Peng H, Hou X, Wang P, Hou X, Ye W, Li T, Yang H, Qiu R, Xia K, Sequeiros J, Tang B, Jiang H. Analysis of (CAG) n expansion in ATXN1, ATXN2 and ATXN3 in Chinese patients with multiple system atrophy. Sci Rep 2018; 8:3889. [PMID: 29497168 PMCID: PMC5832826 DOI: 10.1038/s41598-018-22290-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 02/20/2018] [Indexed: 01/09/2023] Open
Abstract
Multiple system atrophy (MSA) is a complex and multifactorial neurodegenerative disease, and its pathogenesis remains uncertain. Patients with MSA or spinocerebellar ataxia (SCA) show overlapping clinical phenotypes. Previous studies have reported that intermediate or long CAG expansions in SCA genes have been associated with other neurodegenerative disease. In this study, we screened for the number of CAG repeats in ATXN1, 2 and 3 in 200 patients with MSA and 314 healthy controls to evaluate possible associations between (CAG)n in these three polyQ-related genes and MSA. Our findings indicated that longer repeat lengths in ATXN2 were associated with increased risk for MSA in Chinese individuals. No relationship was observed between CAG repeat length in the three examined genes and age at onset (AO) of MSA.
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Affiliation(s)
- X Zhou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - C Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - D Ding
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Z Chen
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Y Peng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - H Peng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - X Hou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - P Wang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - X Hou
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - W Ye
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - T Li
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - H Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - R Qiu
- School of Information Science and Engineering, Central South University, Changsha, Hunan, 410083, P. R. China
| | - K Xia
- Laboratory of Medical Genetics, Central South University, Changsha, Hunan, 410078, P. R. China
| | - J Sequeiros
- IBMC - Institute for Molecular and Cell Biology, i3S - Instituto de Investigação e Inovação na Saúde; and ICBAS; Univ. Porto, Porto, Portugal
| | - B Tang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China.,Laboratory of Medical Genetics, Central South University, Changsha, Hunan, 410078, P. R. China.,Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, P. R. China.,National Clinical Research Center for Geriatric Disorders, Changsha, Hunan, 410078, China
| | - H Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China. .,Laboratory of Medical Genetics, Central South University, Changsha, Hunan, 410078, P. R. China. .,Key Laboratory of Hunan Province in Neurodegenerative Disorders, Central South University, Changsha, Hunan, 410008, P. R. China.
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Liu N, Ding D, Wang L, Zhao H, Zhu L, Geng X. Two novel Mg(II)-based and Zn(II)-based complexes: inhibiting growth of human liver cancer cells. ACTA ACUST UNITED AC 2017; 51:e6929. [PMID: 29267507 PMCID: PMC5734187 DOI: 10.1590/1414-431x20176929] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/20/2017] [Indexed: 12/16/2022]
Abstract
Two new Mg(II)-based and Zn(II)-based coordination polymers, {[Mg3(BTB)(DMA)4](DMA)2}n (1, H3BTB=1,3,5-benzenetrisbenzoic acid, DMA=N,N-dimethylacetamide) and {(H2NMe2)2[Zn3(BTB)2(OH)(Im)](DMF)9(MeOH)7}n (2, Im=imidazole, DMF=N,N-dimethylformamide), have been successfully synthesized and structurally characterized under solvothermal conditions. 1 contains a linear [Mg3(COO)6] cluster that connected by the fully deprotonated BTB3- ligands to give a kgd-type 2D bilayer structure; 2 represents a microporous 3D pillar-layered system based on the binuclear Zn units and pillared Im ligands, which shows a (3,5)-connected hms topological net. In addition, in vitro anticancer activities of compounds 1 and 2 on 4 human liver cancer cells (HB611, HHCC, BEL-7405 and SMMC-7721) were determined.
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Affiliation(s)
- N Liu
- Department of Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - D Ding
- Department of Physiology, Anhui Medical College, Hefei, Anhui, China
| | - L Wang
- Department of Physiology, Basic Medical College of Anhui Medical University, Hefei, Anhui, China
| | - H Zhao
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - L Zhu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - X Geng
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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Ding D, Huang H, Jiang W, Yu W, Zhu H, Liu J, Saiyin H, Wu J, Huang H, Jiang S, Yu L. Reticulocalbin-2 enhances hepatocellular carcinoma proliferation via modulating the EGFR-ERK pathway. Oncogene 2017; 36:6747-6748. [PMID: 29188822 DOI: 10.1038/onc.2017.366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This corrects the article DOI: 10.1038/onc.2017.230.
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Seigel GM, Manohar S, Bai YY, Ding D, Salvi R. An immortalized microglial cell line (Mocha) derived from rat cochlea. Mol Cell Neurosci 2017; 85:202-210. [PMID: 29109020 DOI: 10.1016/j.mcn.2017.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/19/2017] [Accepted: 11/02/2017] [Indexed: 01/18/2023] Open
Abstract
Microglia are glial-immune cells that are essential for the function and survival of the central nervous system. Microglia not only protect neural tissues from immunological insults, but also play a critical role in neural development and repair. However, little is known about the biology of microglia in the cochlea, the auditory portion of the inner ear. In this study, we detected TMEM119+, CD11b+, CD45+ and Iba1+ populations of cells in the rat cochlea, particularly in Rosenthal's canal, inner sulcus and stria vascularis. Next, we isolated and enriched the population of CD11b+ cells from the cochlea and immortalized these cells with the 12S E1A gene of adenovirus in a replication-incompetent retroviral vector to derive a novel microglial cell line, designated Mocha (microglia of the cochlea). The resulting Mocha cells express a number of markers consistent with microglia and respond to lipopolysaccharide (LPS) stimulation by upregulation of genes (Cox2, ICAM-1, Il6r, Ccl2, Il13Ra and Il15Ra) as well as releasing cytokines (IL-1beta, IL-12, IL-13 and RANTES). As evidence of microglial function, Mocha cells phagocytose fluorescent beads at 37°C, but not at 4°C. The expression pattern of microglial markers in Mocha cells suggests that immortalization leads to a more primitive phenotype, a common phenomenon in immortalized cell lines. In summary, Mocha cells display key characteristics of microglia and are now available as a useful model system for the study of cochlear microglial behavior, both in vitro and in vivo.
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Affiliation(s)
- G M Seigel
- University at Buffalo, Center For Hearing & Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
| | - S Manohar
- University at Buffalo, Center For Hearing & Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
| | - Y Y Bai
- Jiangsu Key Laboratory of Molecular and Functional Imaging, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing 210009, China.
| | - D Ding
- University at Buffalo, Center For Hearing & Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States.
| | - R Salvi
- University at Buffalo, Center For Hearing & Deafness, 3435 Main Street, Cary 137, Buffalo, NY 14214, United States; Department of Audiology and Speech-Language Pathology, Asia University, Taichung, Taiwan.
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Zhou B, Hong Z, Zhao Q, Ding D, Guo Q, Kojima S, Fukushima M. The fist year follow-up of Shanghai MCI cohort study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2917] [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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Abstract
It remains unresolved how insect embryos acquire sufficient oxygen to sustain high rates of respiratory metabolism during embryogenesis in the absence of a fully developed tracheal system. Our previous work showed that the two distinct subunits (Hc1 and Hc2) of haemocyanin (Hc), a copper-containing protein, display embryo-specific high expression that is essential for embryonic development and survival in the migratory locust Locusta migratoria. Here we investigated the role of haemocyanins in oxygen sensing and supply in the embryo of this locust. Putative binding sites for hypoxia-regulated transcription factors were identified in the promoter region of all of the Hc1 and Hc2 genes. Embryonic expression of haemocyanins was highly upregulated by ambient O2 deprivation, up to 10-fold at 13% O2 content. The degree of upregulation of haemocyanins increased with increasing levels of hypoxia. Compared with low-altitude locusts, embryonic expression of haemocyanins in high-altitude locusts from Tibetan plateau was constitutively higher and more robust to oxygen deprivation. These findings strongly suggest an active involvement of haemocyanins in oxygen exchange in embryos. We thus propose a mechanistic model for embryo respiration in which haemocyanin plays a key role by complementing the tracheal system for oxygen transport during embryogenesis.
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Affiliation(s)
- B Chen
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - R Ma
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - D Ding
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - L Wei
- College of Life Sciences, Hebei University, Baoding, China
| | - L Kang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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Long L, Ding D, Han Z, Zhao H, Lin Q, Ding S. Thermotolerant hemicellulolytic and cellulolytic enzymes from Eupenicillium parvum 4-14 display high efficiency upon release of ferulic acid from wheat bran. J Appl Microbiol 2017; 121:422-34. [PMID: 27171788 DOI: 10.1111/jam.13177] [Citation(s) in RCA: 16] [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: 02/18/2016] [Revised: 04/13/2016] [Accepted: 05/05/2016] [Indexed: 11/28/2022]
Abstract
AIMS To characterize the hemicellulolytic and cellulolytic enzymes from novel fungi, and evaluate the potential of novel enzyme system in releasing ferulic acid (FA) from biomass resource. METHODS AND RESULTS A hemicellulolytic and cellulolytic enzyme-producing fungus 4-14 was isolated from soil by Congo red staining method, and identified as Eupenicillium parvum based on the morphologic and molecular phylogenetic analysis. The optimum temperature of fungal growth was 37°C. Hemicellulolytic and cellulolytic enzymes were produced by this fungus in solid-state fermentation (SSF), and their maximum activities were 554, 385, 218, 2·62 and 5·25 U g(-1) for CMCase, xylanase, β-glucosidase, FPase and FAE respectively. These enzymes displayed the best catalytic ability at low pH values (pH 4·5-5·0). The optimum temperatures were 70°C, 70°C, 75°C and 55°C for CMCase, β-glucosidase, xylanase and FAE respectively. CMCase, xylanase and FAE were stable at different pHs or high temperature (60°C). Enzymatic hydrolysis experiment indicated that the maximum (76·8 ± 4)% of total alkali-extractable FA was released from de-starched wheat bran by the fungal enzyme system. CONCLUSIONS High activities of thermotolerant CMCase, β-glucosidase, xylanase and FAE were produced by the newly isolated fungus E. parvum 4-14 in SSF. The fungal enzyme system displayed high efficiency at releasing FA from wheat bran. SIGNIFICANCE AND IMPACT OF THE STUDY This study provides a new fungal strain for researches of novel hemicellulolytic and cellulolytic enzymes and will improve the bioconversion and utilization of agricultural by-products.
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Affiliation(s)
- L Long
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - D Ding
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Z Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - H Zhao
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Q Lin
- Nanjing Institute for the Comprehensive Utilization of Wild Plants, Nanjing, China
| | - S Ding
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
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Chen GD, Ding D, Tian HY, Zhu YY, Cao WT, Wang C, Chen YM. Adherence to the 2006 American Heart Association's Diet and Lifestyle Recommendations for cardiovascular disease risk reduction is associated with bone mineral density in older Chinese. Osteoporos Int 2017; 28:1295-1303. [PMID: 27924380 DOI: 10.1007/s00198-016-3857-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 11/22/2016] [Indexed: 12/01/2022]
Abstract
UNLABELLED This cross-sectional study investigated the association between the modified 2006 American Heart Association Diet and Lifestyle Recommendations (AHA-DLR) and bone mineral density in Chinese adults. We found that better adherence to the AHA-DLR associated with higher bone mineral density (BMD) at multiple sites. INTRODUCTION Accumulating evidence shows that cardiovascular disease (CVD) and osteoporosis are associated with each other, yet little research has focused on whether strategies to reduce CVD risk could also benefit bone health. We aimed to assess the association between adherence to the modified 2006 American Heart Association Diet and Lifestyle Recommendations (AHA-DLR) and BMD in Chinese adults. METHODS We included 2092 women and 1051 men aged 40-75 years in this community-based cross-sectional study. Dietary information was assessed using a 79-item food frequency survey through face-to-face interviews at baseline (2008-2010) and 3 years later (2011-2013). Adherence to the AHA-DLR was assessed using modified diet and lifestyle scores (American Heart Association Diet and Lifestyle Score (AHA-DLS)) adjusted for bone health. BMD for the whole body, lumbar spine, total hip, femur neck, and trochanter sites was measured using dual-energy X-ray absorptiometry in 2011-2013. RESULTS After adjusting for potential covariates, greater adherence to the modified AHA-DLS was positively and dose-dependently associated with BMD. The mean BMD was 1.93-3.11% higher in quartile 4 (vs. 1) (all p values <0.01) at multiple sites. Five-unit increases in the modified AHA-DLS score were associated with 4.20-6.07, 4.44-8.51, and 3.36-4.67 mg/cm2 increases in BMD at multiple sites for the total subjects, males, and females, respectively (all p values <0.01). CONCLUSIONS Better adherence to the AHA-DLR shows protective associations with BMD at multiple sites in the middle-aged and elderly Chinese population.
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Affiliation(s)
- G D Chen
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - D Ding
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - H Y Tian
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Y Y Zhu
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - W T Cao
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - C Wang
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China
| | - Y M Chen
- Department of Medical Statistics and Epidemiology, Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China.
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Partridge S, Grunseit A, O’Hara B, Neubeck L, Ding D, Gallagher P, Freeman B, Bauman A, Phongsavan P, Gallagher R. Development of a Social Media Intervention for the Secondary Prevention of Cardiovascular Disease. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.702] [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: 10/19/2022]
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Jin K, Neubeck L, Gullick J, Koo F, Ding D. Acculturation is Associated with Higher Prevalence of Cardiovascular Disease Risk Factors in Chinese Immigrants in Australia: Evidence from a Large Australian Cohort. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.012] [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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Tang S, Luo F, Feng Y, Wei X, Miao H, Lu Y, Tang Y, Ding D, Jin J, Zhu Q. Neutral Ceramidase Secreted Via Exosome Protects Against Palmitate-Induced Apoptosis in INS-1 Cells. Exp Clin Endocrinol Diabetes 2016; 125:130-135. [PMID: 28008587 DOI: 10.1055/s-0042-116314] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- S. Tang
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - F. Luo
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y. Feng
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - X. Wei
- Endocrine and Diabetes Center, Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing University of Traditional Chinese Medicine, Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - H. Miao
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y. Lu
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Y. Tang
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - D. Ding
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - J. Jin
- China-USA Lipids in Health and Disease Research Center, Guilin Medical University, Guilin, China
| | - Q. Zhu
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Ding D, Kim T, Minnich AJ. Active Thermal Extraction and Temperature Sensing of Near-field Thermal Radiation. Sci Rep 2016; 6:32744. [PMID: 27595609 PMCID: PMC5011705 DOI: 10.1038/srep32744] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 08/10/2016] [Indexed: 12/15/2022] Open
Abstract
Recently, we proposed an active thermal extraction (ATX) scheme that enables thermally populated surface phonon polaritons to escape into the far-field. The concept is based on a fluorescence upconversion process that also occurs in laser cooling of solids (LCS). Here, we present a generalized analysis of our scheme using the theoretical framework for LCS. We show that both LCS and ATX can be described with the same mathematical formalism by replacing the electron-phonon coupling parameter in LCS with the electron-photon coupling parameter in ATX. Using this framework, we compare the ideal efficiency and power extracted for the two schemes and examine the parasitic loss mechanisms. This work advances the application of ATX to manipulate near-field thermal radiation for applications such as temperature sensing and active radiative cooling.
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Affiliation(s)
- D. Ding
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, USA
| | - T. Kim
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, USA
| | - A. J. Minnich
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, California 91125, USA
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Jin K, Ding D, Gullick J, Koo F, Neubeck L. Marked Differences in Cardiovascular Risk Profiles in Middle-Aged and Older Chinese Residents: Evidence from a Large Australian Cohort. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- J Zhang
- Gynecology, Kunshan No.3 People's Hospital, Suzhou, Jiang Su, China
| | - D Ding
- Gynecology, Shanghai Ob/Gyn Hospital, Fudan University, Shanghai, China
| | - X Liu
- Gynecology, Shanghai Ob/Gyn Hospital, Fudan University, Shanghai, China
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Baizer JS, Wong KM, Manohar S, Hayes SH, Ding D, Dingman R, Salvi RJ. Effects of acoustic trauma on the auditory system of the rat: The role of microglia. Neuroscience 2015; 303:299-311. [PMID: 26162240 DOI: 10.1016/j.neuroscience.2015.07.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 12/17/2014] [Revised: 05/27/2015] [Accepted: 07/01/2015] [Indexed: 12/29/2022]
Abstract
Exposure to loud, prolonged sounds (acoustic trauma, AT) leads to the death of both inner and outer hair cells (IHCs and OHCs), death of neurons of the spiral ganglion and degeneration of the auditory nerve. The auditory nerve (8cn) projects to the three subdivisions of the cochlear nuclei (CN), the dorsal cochlear nucleus (DC) and the anterior (VCA) and posterior (VCP) subdivisions of the ventral cochlear nucleus (VCN). There is both anatomical and physiological evidence for plastic reorganization in the denervated CN after AT. Anatomical findings show axonal sprouting and synaptogenesis; physiologically there is an increase in spontaneous activity suggesting reorganization of circuitry. The mechanisms underlying this plasticity are not understood. Recent data suggest that activated microglia may have a role in facilitating plastic reorganization in addition to removing trauma-induced debris. In order to investigate the roles of activated microglia in the CN subsequent to AT we exposed animals to bilateral noise sufficient to cause massive hair cell death. We studied four groups of animals at different survival times: 30 days, 60 days, 6 months and 9 months. We used silver staining to examine the time course and pattern of auditory nerve degeneration, and immunohistochemistry to label activated microglia in the denervated CN. We found both degenerating auditory nerve fibers and activated microglia in the CN at 30 and 60 days and 6 months after AT. There was close geographic overlap between the degenerating fibers and activated microglia, consistent with a scavenger role for activated microglia. At the longest survival time, there were still silver-stained fibers but very little staining of activated microglia in overlapping regions. There were, however, activated microglia in the surrounding brainstem and cerebellar white matter.
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Affiliation(s)
- J S Baizer
- Department of Physiology & Biophysics, University at Buffalo, United States.
| | - K M Wong
- Department of Physiology & Biophysics, University at Buffalo, United States
| | - S Manohar
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY 14214, United States
| | - S H Hayes
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY 14214, United States
| | - D Ding
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY 14214, United States
| | - R Dingman
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY 14214, United States
| | - R J Salvi
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY 14214, United States
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Jin K, Ding D, Gullick J, Koo F, Neubeck L. Coronary heart disease in Chinese living in western countries: new insights from a systematic review and meta-analysis. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.015] [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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Pedisic Z, Grunseit A, Ding D, Chau J, Banks E, Stamatakis E, Jalaludin B, Bauman A. Association between sedentary behaviour and weight gain: A longitudinal study of middle-aged adults in New South Wales, Australia. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Stamatakis E, Rogers K, Ding D, Berrigan D, Hamer M, Chau J, Bauman A. Replacing sedentary time with standing, physical activity, and sleeping: Associations with all-cause mortality in a cohort of 201,129 Australian adults. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.235] [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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Raper DMS, Starke RM, Henderson F, Ding D, Simon S, Evans AJ, Jane JA, Liu KC. Preoperative embolization of intracranial meningiomas: efficacy, technical considerations, and complications. AJNR Am J Neuroradiol 2014; 35:1798-804. [PMID: 24722303 DOI: 10.3174/ajnr.a3919] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Preoperative embolization for intracranial meningiomas offers potential advantages for safer and more effective surgery. However, this treatment strategy has not been examined in a large comparative series. The purpose of this study was to review our experience using preoperative embolization to understand the efficacy, technical considerations and complications of this technique. MATERIALS AND METHODS We performed a retrospective review of patients undergoing intracranial meningioma resection at our institution (March 2001 to December 2012). Comparisons were made between embolized and nonembolized patients, including patient and tumor characteristics, embolization method, operative blood loss, complications, and extent of resection. Logistic regression analyses were used to identify factors predictive of operative blood loss and extent of resection. RESULTS Preoperatively, 224 patients were referred for embolization, of which 177 received embolization. No complications were seen in 97.1%. There were no significant differences in operative duration, extent of resection, or complications. Estimated blood loss was higher in the embolized group (410 versus 315 mL, P=.0074), but history of embolization was not a predictor of blood loss in multivariate analysis. Independent predictors of blood loss included decreasing degree of tumor embolization (P=.037), skull base location (P=.005), and male sex (P=.034). Embolization was not an independent predictor of gross total resection. CONCLUSIONS Preoperative embolization is a safe option for selected meningiomas. In our series, embolization did not alter the operative duration, complications, or degree of resection, but the degree of embolization was an independent predictor of decreased operative blood loss.
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Affiliation(s)
- D M S Raper
- From the Department of Neurosurgery (D.M.S.R., R.M.S., D.D., J.A.J., K.C.L.)
| | - R M Starke
- From the Department of Neurosurgery (D.M.S.R., R.M.S., D.D., J.A.J., K.C.L.)
| | - F Henderson
- School of Medicine (F.H.), University of Virginia Health System, Charlottesville, Virginia
| | - D Ding
- From the Department of Neurosurgery (D.M.S.R., R.M.S., D.D., J.A.J., K.C.L.)
| | - S Simon
- Department of Neurosurgery (S.S.), Penn State Hershey, Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | | | - J A Jane
- From the Department of Neurosurgery (D.M.S.R., R.M.S., D.D., J.A.J., K.C.L.)
| | - K C Liu
- From the Department of Neurosurgery (D.M.S.R., R.M.S., D.D., J.A.J., K.C.L.)
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Wang C, You X, Jiang C, Jin C, Meng X, Ding D. Hepatocyte growth factor upregulates nexilin gene expression in cardiomyocytes via JNK pathway. Genet Mol Res 2014; 13:4976-82. [PMID: 25062485 DOI: 10.4238/2014.july.4.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Hepatocyte growth factor (HGF) is a protective factor in myocardial injury, but its mechanisms of action have not yet been fully elucidated. Nexilin, which locates specifically to the Z-disc, is a novel Z-disc protein that enables the Z-discs to persistently withstand the extreme mechanical forces generated during muscle contraction. Therefore, we investigated the role of HGF in modulating nexilin expression in hypoxia-reoxygenation (H/R)-treated cardiomyocytes. We cultured neonatal cardiomyocytes and treated them with HGF. The mRNA and protein levels of nexilin were determined by RT-PCR and Western blotting. H/R treatment decreased nexilin mRNA expression and nexilin protein levels in cardiomyocytes. Furthermore, treatment with HGF upregulated nexilin expression and the JNK inhibitor SP600125 partly inhibited HGF-induced nexilin upregulation. In conclusion, our results suggest that ischemia-reperfusion injury may downregulate nexilin expression in cardiomyocytes, and HGF may exert its protective role during myocardial ischemic injury through upregulation of nexilin expression in cardiomyocytes.
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Affiliation(s)
- C Wang
- Department of Laboratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - X You
- Department of Laboratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - C Jiang
- Department of Laboratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - C Jin
- Department of Laboratory Medicine, Affiliated Hospital of Yanbian University, Yanji, China
| | - X Meng
- Core Laboratory, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - D Ding
- Department of Cardiology, Affiliated Hospital of Yanbian University, Yanji, China
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Ding D, Starke R, Evans A, Jensen M, Liu K. E-047 Navigation of a Flow-Diverting Stent across the Neck of a Giant Supraclinoid Internal Carotid Artery Aneurysm with a Balloon Anchor Technique. J Neurointerv Surg 2014. [DOI: 10.1136/neurintsurg-2014-011343.114] [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: 11/03/2022]
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Ding D, Raper D, Starke R, Hilliard J, Evans A, Jensen M, Liu K. E-046 Thromboembolic and Haemorrhagic Complications Associated with Endovascular Coil Embolization of Ruptured Basilar Apex Aneurysms. J Neurointerv Surg 2014. [DOI: 10.1136/neurintsurg-2014-011343.113] [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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46
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Ding D, Starke R, Durst C, Gaughen J, Evans A, Jensen M, Liu K. E-049 Intraprocedural Diagnosis of Flow-Diverting Stent Malapposition during Endovascular Aneurysm Treatment with DynaCT Imaging. J Neurointerv Surg 2014. [DOI: 10.1136/neurintsurg-2014-011343.116] [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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Ding D, Starke R, Evans A. E-050 Navigation of a Distal Cerebral Embolic Protection Device through Significant Vascular Tortuosity with a Novel Rapid Exchange Catheter System during Carotid Artery Stenting. J Neurointerv Surg 2014. [DOI: 10.1136/neurintsurg-2014-011343.117] [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: 11/03/2022]
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Wang C, Wang B, Okunishi M, Roeterdink W, Ding D, Zhu R, Prümper G, Shimada K, Ueda K. Ion–ion coincidence imaging of dissociative ionization dynamics of formic acid in intense laser fields. Chem Phys 2014. [DOI: 10.1016/j.chemphys.2013.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wan D, Gu W, Xu G, Shen C, Ding D, Shen S, Wang S, Gong X, He S, Zhi Q. Effects of common polymorphisms rs2910164 in miR-146a and rs11614913 in miR-196a2 on susceptibility to colorectal cancer: a systematic review meta-analysis. Clin Transl Oncol 2014; 16:792-800. [PMID: 24399071 DOI: 10.1007/s12094-013-1150-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 12/09/2013] [Indexed: 01/29/2023]
Abstract
PURPOSE Emerging evidence has shown that single nucleotide polymorphisms occurred in microRNAs may contribute to the development of colorectal cancer (CRC). rs2910164 in miR-146a and rs11614913 in miR-196a2 are suggested to be associated with the susceptibility to CRC, but individually published studies revealed inconclusive results. To systematically summarize the possible correlationship between these polymorphisms and CRC risk, we performed this meta-analysis. METHODS We retrieved the relevant articles of the associations between these two microRNA polymorphisms and susceptibility to CRC for the period up to July 1, 2013. A total of seven articles were identified with 2,143 cases and 2,457 controls for miR-146a rs2910164, 1,594 cases and 2,252 controls for miR-196a2 rs11614913. Odds ratio and 95 % confidence interval were calculated to investigate the strength of the association. RESULTS The pooled analysis showed that miR-146a rs2910164 did not reveal any correlation with CRC susceptibility. However, a decreased risk was observed between miR-196a2 rs11614913 and CRC in all genetic models. CONCLUSION Our current meta-analysis demonstrates that miR-196a2 rs11614913 most likely contributes to decreased risk of CRC, whereas miR-146a rs2910164 may not be associated with the susceptibility to CRC.
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Affiliation(s)
- D Wan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
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