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Wang R, Lin Y', Zhang C, Wu H, Jin Q, Guo J, Cao H, Tan D, Wu T. Fine mapping and analysis of a candidate gene controlling Phytophthora blight resistance in cucumber. Plant Biol (Stuttg) 2024. [PMID: 38607927 DOI: 10.1111/plb.13648] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/25/2024] [Indexed: 04/14/2024]
Abstract
Cucumber blight is a destructive disease. The best way to control this disease is resistance breeding. This study focuses on disease resistance gene mapping and molecular marker development. We used the resistant cucumber, JSH, and susceptible cucumber, B80, as parents to construct F2 populations. Bulked segregant analysis (BSA) combined with specific length amplified fragment sequencing (SLAF-seq) were used, from which we developed cleaved amplified polymorphic sequence (CAPs) markers to map the resistance gene. Resistance in F2 individuals showed a segregation ratio of resistance:susceptibility close to 3:1. The gene in JSH resistant cucumber was mapped to an interval of 9.25 kb, and sequencing results for the three genes in the mapped region revealed three mutations at base sites 225, 302, and 591 in the coding region of Csa5G139130 between JSH and B80, but no mutations in coding regions of Csa5G139140 and Csa5G139150. The mutations caused changes in amino acids 75 and 101 of the protein encoded by Csa5G139130, suggesting that Csa5G139130 is the most likely resistance candidate gene. We developed a molecular marker, CAPs-4, as a closely linked marker for the cucumber blight resistance gene. This is the first report on mapping of a cucumber blight resistance gene and will provideg a useful marker for molecular breeding of cucumber resistance to Phytophthora blight.
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Affiliation(s)
- R Wang
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - Y 'e Lin
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, China
| | - C Zhang
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - H Wu
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - Q Jin
- Vegetable Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou, China
| | - J Guo
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - H Cao
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - D Tan
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
| | - T Wu
- Institute of Facility Agriculture, Guangdong Academy of Agricultural Sciences (IFA, GDAAS), Guangzhou, China
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Kfoury M, Tan D. Specific issues in the systemic treatment strategy for ovarian clear cell carcinoma. ESMO Open 2024; 9:102568. [PMID: 38387110 PMCID: PMC10899029 DOI: 10.1016/j.esmoop.2024.102568] [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: 02/24/2024] Open
Affiliation(s)
- M Kfoury
- Medical Oncology Department, Institut Paoli-Calmettes, Marseille, France.
| | - D Tan
- Department of Medical Oncology, National University Cancer Institute, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
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Hu W, Zheng R, Feng Y, Tan D, Chan Chung-Tsing G, Su X, Kim JE. Impacts of regular consumption of grapes on macular pigment accumulation in Singapore older adults: a randomized controlled trial. Food Funct 2023; 14:8321-8330. [PMID: 37605542 DOI: 10.1039/d3fo02105j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Background: Oxidative stress is a key risk factor for visual impairment and consuming dietary antioxidant-rich foods may help in managing visual impairments. However, a limited number of studies have investigated the effect of dietary antioxidant-rich food including grapes on eye health in older adults. Objectives: To assess the effects on macular pigment accumulation of regular consumption of grapes in Singapore older adults. Methods: This was a 16 week, double-blind, randomized, placebo-controlled trial. Thirty-four Singapore older adults were randomized into regularly consuming either 46 g day-1 of freeze-dried table grape powder (the intervention group) or the same amount of placebo powder (the control group). Macular pigment optical density (MPOD), skin carotenoid status, advanced glycation end product (AGEs) status and dietary lutein intake were assessed every 4 weeks, and plasma lutein concentration, total antioxidant capacity and total phenolic content were measured every 8 weeks. Results: A significant time effect (p = 0.007) was observed for MPOD, and this is largely attributed to the improvement in the MPOD for the intervention group, as a significant increase was observed only in this group (week 0: 0.56 ± 0.04 D.U.; week 16: 0.61 ± 0.04 D.U., p < 0.01). Additionally, a significant increase in plasma total antioxidant capacity (week 0: 0.26 ± 0.13 mM TEAC; week 16: 0.36 ± 0.20 mM TEAC, p < 0.01) and total phenolic content (week 0: 10.50 ± 0.44 mg L-1 GAE; week 16: 12.58 ± 0.55 mg L-1 GAE, p < 0.001) was observed for the intervention group only. In contrast, a significant increase in skin AGE status was observed in the control group (week 0: 2.47 ± 0.24; week 16: 2.99 ± 0.12, p < 0.05) while this was mitigated in the intervention group. There were no differences in dietary lutein intake, plasma lutein concentration and skin carotenoid status between groups throughout the study. Conclusions: Regular intake of grapes may improve eye health in Singapore older adults, specifically in augmenting MPOD, which can be explained by an increase in plasma total antioxidant capacity and phenolic content, and the downregulation of AGEs. This study was registered at clinicatrials.gov as NCT05064865.
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Affiliation(s)
- Weili Hu
- Department of Food Science and Technology, National University of Singapore, Singapore 117543, Singapore.
| | - Ruoxi Zheng
- Department of Food Science and Technology, National University of Singapore, Singapore 117543, Singapore.
| | - Yuting Feng
- Department of Food Science and Technology, National University of Singapore, Singapore 117543, Singapore.
| | - Denise Tan
- Department of Food Science and Technology, National University of Singapore, Singapore 117543, Singapore.
- Science and Technology Department, Nestlé R&D Center (Pte) Ltd, Singapore 618802, Singapore
| | - Gregory Chan Chung-Tsing
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore 117549, Singapore
| | - Xinyi Su
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Jung Eun Kim
- Department of Food Science and Technology, National University of Singapore, Singapore 117543, Singapore.
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Tan D, Mohd Nasir NF, Abdul Manan H, Yahya N. Prediction of toxicity outcomes following radiotherapy using deep learning-based models: A systematic review. Cancer Radiother 2023; 27:398-406. [PMID: 37482464 DOI: 10.1016/j.canrad.2023.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 07/25/2023]
Abstract
PURPOSE This study aims to perform a comprehensive systematic review of deep learning (DL) models in predicting RT-induced toxicity. MATERIALS AND METHODS A literature review was performed following the PRISMA guidelines. Systematic searches were performed in PubMed, Scopus, Cochrane and Embase databases from the earliest record up to September 2022. Related studies on deep learning models for radiotherapy toxicity prediction were selected based on predefined PICOS criteria. RESULTS Fourteen studies of radiotherapy-treated patients on different types of cancer [prostate (n=2), HNC (n=4), liver (n=2), lung (n=4), cervical (n=1), and oesophagus (n=1)] were eligible for inclusion in the systematic review. Information regarding patient characteristics and model development was summarized. Several approaches, such as ensemble learning, data augmentation, and transfer learning, that were utilized by selected studies were discussed. CONCLUSION Deep learning techniques are able to produce a consistent performance for toxicity prediction. Future research using large and diverse datasets and standardization of the study methodologies are required to improve the consistency of the research output.
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Affiliation(s)
- D Tan
- Centre of Diagnostic, Therapeutic and Investigative Sciences (CODTIS). Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Aziz, Kuala Lumpur 50300 Malaysia
| | - N F Mohd Nasir
- Centre of Diagnostic, Therapeutic and Investigative Sciences (CODTIS). Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Aziz, Kuala Lumpur 50300 Malaysia
| | - H Abdul Manan
- Functional Image Processing Laboratory, Department of Radiology, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur 56000, Malaysia
| | - N Yahya
- Centre of Diagnostic, Therapeutic and Investigative Sciences (CODTIS). Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Aziz, Kuala Lumpur 50300 Malaysia.
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Tan D, Drewnowski A, Lê KA. New metrics of dietary carbohydrate quality. Curr Opin Clin Nutr Metab Care 2023; 26:358-363. [PMID: 37249917 PMCID: PMC10256305 DOI: 10.1097/mco.0000000000000933] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE OF REVIEW The aim of this study was to introduce novel metrics of dietary carbohydrates quality relevant for products and diets. RECENT FINDINGS Carbohydrate quality has long been associated with a low glycemic index. More recently, novel metrics of carbohydrate quality featuring variations of total carbohydrates-fibers-free sugars ratios have been applied to carbohydrate-rich foods, including grains, beans, vegetables, and fruit. High scoring products had higher levels of health-promoting nutrients (protein, dietary fiber, iron, magnesium, zinc, potassium, selenium, and various B-vitamins) and lower levels of nutrients of public health concern (total sugar, added/free sugars, and fat profile). Cross-sectional studies also found variants of carbohydrate quality metrics to be associated with better markers of cardiometabolic disease, including lower levels of blood triglycerides:high-density lipoprotein cholesterol ratio, homeostatic model assessment of insulin resistance, and SBP. SUMMARY New ratio-based carbohydrate quality metrics are built around high fiber and whole grain content, combined with a low free sugar content. Such metrics allow the identification of food products of higher overall nutritional quality, and are associated with improved diet quality and certain health outcomes.
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Affiliation(s)
- Denise Tan
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore, Singapore
- Science and Technology Department, Nestlé R&D Center (Pte) Ltd., Singapore, Singapore
| | - Adam Drewnowski
- Center for Public Health Nutrition, University of Washington, Seattle, Washington, USA
| | - Kim-Anne Lê
- Department of Nutrition Sciences, Nestlé Research, Lausanne, Switzerland
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Tan D, Sutanto CN, Lin JWX, Toh DWK, Lê KA, Kim JE. Measures of carbohydrate quality and their association with diet quality and cardiometabolic health outcomes in Singapore middle-aged and older adults. Nutr Metab Cardiovasc Dis 2023; 33:778-788. [PMID: 36842956 DOI: 10.1016/j.numecd.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND AIMS Carbohydrate quality may play a key role in cardiometabolic health and disease risk. This study aimed to assess the dietary carbohydrate quality of the free-living middle-aged and older adults in Singapore, and its association with overall diet quality and cardiometabolic health. METHODS AND RESULTS This cross-sectional study examined the diet and cardiometabolic disease risk indicators of middle-aged and older adults in Singapore (n = 104). Dietary carbohydrate quality was assessed as the pass and fail rate of the population to four measures of carbohydrate quality: (i) dietary fiber recommended daily allowance (RDA), (ii) whole-grain recommendation, (iii) free sugar recommendation, and (iv) carbohydrate metrics. The association between each carbohydrate quality measure and diet quality, as well as cardiometabolic health, was assessed. Except for free sugar recommendation, the carbohydrate quality of the population was found to be poor with a low adherence (20-36%) to three measures. Subjects meeting these measures had generally higher intakes of fiber, protein, and most micronutrients compared with subjects who failed. Meeting different variants of the carbohydrate metrics was associated with 60% lower odds of pre-hypertensive blood pressure (p = 0.037; p = 0.047), and meeting the dietary fiber RDA was associated with lower waist circumference (p = 0.021). CONCLUSION An improvement in carbohydrate quality is warranted among free-living middle-aged and older adults in Singapore. Not all measures of carbohydrate quality were equally effective in preserving overall diet quality; the carbohydrate metrics and dietary fiber RDA can be identified as effective measures in relation to cardiometabolic disease risk. CLINICAL TRIAL REGISTRATION https://clinicaltrials.gov/ CLINICAL TRIAL REGISTRATION: NCT03554954, 13 Sept. 2018.
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Affiliation(s)
- Denise Tan
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore; Science and Technology Department, Nestlé R&D Center (Pte) Ltd., Singapore 618802, Singapore
| | - Clarinda Nataria Sutanto
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore
| | - Jia Wen Xanthe Lin
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore
| | - Darel Wee Kiat Toh
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore
| | - Kim-Anne Lê
- Department of Nutrition Sciences, Nestlé Research, 1000 Lausanne 26, Switzerland
| | - Jung Eun Kim
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore.
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Chew N, Ng CH, Tan D, Kong G, Lin CX, Chin YH, Foo R, Chan M, Muthiah M. Global burden of metabolic diseases: data from Global Burden of Disease 2000-2019. A cosortium of metabolic disease. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.131] [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: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
The growing prevalence of metabolic diseases is a major concern. We sought to examine the global trends and mortality of metabolic diseases using estimates from the Global Burden of Diseases, Injuries and Risk Factors Study (GBD) 2019.
Methods
Global estimates of prevalence, deaths, and disability-adjusted life year (DALYs) from 2000-2019 were examined for metabolic diseases (type 2 diabetes mellitus [T2DM], hypertension, and nonalcoholic fatty liver disease [NAFLD]). For metabolic risk factors (hyperlipidemia and obesity), estimates were limited to mortality and DALYs. Death rates was compared across sex, World Health Organisation regions and Socio-demographic Index (SDI) quintiles. Age-standardised prevalence and death rates were presented per 100,000 population with 95% uncertainty intervals (UI).
Findings
From 2000 to 2019, prevalence rates increased for all metabolic diseases, with the most pronounced increase in high SDI countries. In 2019, the mean (95%UI) age-standardised prevalence per 100,000 population was estimated to be 15,023 (13,493-16,764) for NAFLD, 5,283 (4,864–5,720) for T2DM and 234 (171-313) for hypertension. The highest age-standardised death rates were observed in obesity (62·59 [39·92-89·13]; males, 66·55 [39·76-97·21]; females. 58·14 [38·53-81·39]), followed by hyperlipidemia (56·51 [41·83-73·62]; males, 67·33 [50·78-86·43]; females, 46·50 [32·70-62·38]), T2DM (18·49 [17·18-19·66], males, 67·33 [50·78-86·43]; females, 46·50 [32·70-62·38]), hypertension (15·16 [11·20-16·75]; males, 14·95 [10·32-16·75]; females, 15·05 [11·51-17·09]) and NAFLD (2·09 [1·61-2·60]; males, 2·38 [1·82-3·02]; females, 1·82 [1·41-2·27]). Mortality rates decreased over time in hyperlipidemia (-154%), hypertension (-52%) and NAFLD (-52%), but not in T2DM and obesity. The highest mortality for metabolic diseases was found in Eastern Mediterranean, and low to low-middle SDI countries.
Conclusion
The global prevalence of metabolic diseases has risen over the past two decades regardless of SDI. Attention is needed to address the unchanging mortality rates attributed to metabolic disease and the regional, socioeconomic, and sex disparities in mortality from metabolic disease.
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Affiliation(s)
- N Chew
- National University Health System , Singapore , Singapore
| | - C H Ng
- National University Health System , Singapore , Singapore
| | - D Tan
- National University Health System , Singapore , Singapore
| | - G Kong
- National University Heart Centre , Singapore , Singapore
| | - C X Lin
- National University Heart Centre , Singapore , Singapore
| | - Y H Chin
- National University Heart Centre , Singapore , Singapore
| | - R Foo
- National University Heart Centre , Singapore , Singapore
| | - M Chan
- National University Heart Centre , Singapore , Singapore
| | - M Muthiah
- National University Health System , Singapore , Singapore
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Chew NWS, Ng CH, Kong G, Tan D, Lim WH, Kofidis T, Yip J, Loh PH, Chan KH, Low A, Lee CH, Yeo TC, Tan HC, Chan MY. Reconstructed meta-analysis of percutaneous coronary intervention versus coronary artery bypass grafting for left main disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1415] [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
Background
Randomized controlled trials (RCTs) comparing percutaneous coronary intervention (PCI) with drug-eluting stents and coronary artery bypass grafting (CABG) for patients with left main coronary artery disease (LMCAD) have reported conflicting results.
Objectives
We performed a systematic review from inception to 23 May 2021 and one-stage reconstructed individual-patient data meta-analysis (IPDMA) that included 10-year mortality outcomes.
Methods
The primary outcome was 10-year all-cause mortality. Secondary outcomes included myocardial infarction (MI), stroke and unplanned revascularization at 5 years. We did IPDMA using published Kaplan-Meier curves to provide individual data points in coordinates and numbers at risk were used to increase the calibration accuracy of the reconstructed data. Shared frailty model or, when proportionality assumptions were not met, a restricted mean survival time model were fitted to compare outcomes between treatment groups.
Results
Of 583 articles retrieved, 5 RCTs were included. A total of 4595 patients from these 5 RCTs were randomly assigned to PCI (N=2297) or CABG (N=2298). The cumulative 10-year all-cause mortality after PCI and CABG was 12.0% versus 10.6% respectively (HR 1.093, 95% CI: 0.925–1.292; p=0.296). PCI conferred similar time-to-MI (RMST ratio 1.006, 95% CI: 0.992–1.021, p=0.391) and stroke (RMST ratio 1.005, 95% CI: 0.998–1.013, p=0.133) at 5 years. Unplanned revascularization was more frequent following PCI compared with CABG (HR 1.807, 95% CI: 1.524–2.144, p<0.001) at 5 years.
Conclusion
This meta-analysis using reconstructed participant-level time-to-event data showed no statistically significant difference in cumulative 10-year all-cause mortality between PCI versus CABG in the treatment of LMCAD.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N W S Chew
- National University Heart Centre , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - D Tan
- National University of Singapore , Singapore , Singapore
| | - W H Lim
- National University of Singapore , Singapore , Singapore
| | - T Kofidis
- National University Heart Centre , Singapore , Singapore
| | - J Yip
- National University Heart Centre , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
| | - K H Chan
- National University Heart Centre , Singapore , Singapore
| | - A Low
- National University Heart Centre , Singapore , Singapore
| | - C H Lee
- National University Heart Centre , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre , Singapore , Singapore
| | - H C Tan
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre , Singapore , Singapore
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Li S, Liu S, Wu Y, Liu Y, Tan D, Fan Y, Wei C, Xiong H. VP.21 Baseline nutrition investigation in a Chinese cohort of pediatric patients with spinal muscular atrophy. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.098] [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: 11/06/2022]
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Tan D, Zhang H, Xiong H. VP.77 Muscle transcriptomic study of a novel LAMA2-related congenital muscular dystrophy mouse model. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Huang X, Yang H, Tan D, Ge L, Fan Y, Chang X, Yang Z, Xiong H. VP.78 Clinical and genetic study of LAMA2-related muscular dystrophy patients with seizures. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.340] [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: 11/05/2022]
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Geng P, Ling B, Yang Y, Walline JH, Song Y, Lu M, Wang H, Zhu Q, Tan D, Xu J. THIRD bedside ultrasound protocol for rapid diagnosis of undifferentiated shock: a prospective observational study. Hong Kong Med J 2022; 28:383-391. [PMID: 36171145 DOI: 10.12809/hkmj219648] [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] [Indexed: 06/16/2023] Open
Abstract
INTRODUCTION It is clinically challenging to differentiate the pathophysiological types of shock in emergency situations. Here, we evaluated the ability of a novel bedside ultrasound protocol (Tamponade/tension pneumothorax, Heart, Inferior vena cava, Respiratory system, Deep venous thrombosis/aorta dissection [THIRD]) to predict types of shock in the emergency department. METHODS An emergency physician performed the THIRD protocol on all patients with shock who were admitted to the emergency department. All patients were closely followed to determine their final clinical diagnoses. The kappa index, sensitivity, specificity, positive predictive value, and negative predictive value were calculated for the initial diagnostic impression provided by the THIRD protocol, compared with each patient's final diagnosis. RESULTS In total, 112 patients were enrolled in this study. The kappa index between initial impression and final diagnosis was 0.81 (95% confidence interval=0.73-0.89; P<0.001). For hypovolaemic, cardiogenic, distributive, and obstructive types of shock, the sensitivities of the THIRD protocol were 100%, 100%, 93%, and 100%, respectively; the sensitivity for a 'mixed' shock aetiology was 86%. The negative predictive value of the THIRD protocol for all five types of shock was ≥96%. CONCLUSION Initial diagnostic judgements determined using the THIRD protocol showed favourable agreement with the final diagnosis in patients who presented with undifferentiated shock. The THIRD protocol has great potential for use as a bedside approach that can guide the rapid management of undifferentiated shock in emergency settings, particularly for patients with obstructive, hypovolaemic, or cardiogenic shock.
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Affiliation(s)
- P Geng
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - B Ling
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Y Yang
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - J H Walline
- Accident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong
| | - Y Song
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - M Lu
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - H Wang
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Q Zhu
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - D Tan
- Department of Emergency Medicine, Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, China
| | - J Xu
- Department of Emergency Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
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Sukhadia B, Tan D, Oh Y, Chae Y. EP08.02-023 Differentiation Syndrome in a Patient with Non-Small-Cell Lung Cancer Harboring IDH2 Mutation Treated with Enasidenib. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.705] [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: 10/14/2022]
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Ang T, Tan D, Goh B, Ng WT, Tan BBC, See B. Functional assessment of military aircrew applicants in a hypobaric chamber. Occup Med (Lond) 2022; 72:452-455. [DOI: 10.1093/occmed/kqac059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Aircrew are exposed to environmental pressure changes. In the Republic of Singapore Air Force (RSAF), applicants assessed to be at intermediate risk of otic barotrauma undergo a hypobaric chamber assessment [“trial of chamber” (TOC)] to functionally evaluate their suitability for military aircrew vocations.
Aims
To identify factors associated with TOC failure among applicants with otorhinolaryngological conditions.
Methods
All applicants to RSAF aircrew vocations who were assessed to be at intermediate risk of otic barotrauma over a 3-yr period were identified using the RSAF Aeromedical Centre’s electronic database. Their medical records, as well as the TOC assessment records of the subset of applicants who underwent TOC, were reviewed for demographic data, clinical findings, and TOC outcomes.
Results
Of the 483 identified applicants, 374 (77%) had abnormal otoscopic findings, 103 (21%) had rhinitis symptoms, and 6 (1%) had previous ENT surgery. 123 (25%) underwent TOC, of which 20 (16%) failed. Holding other predictor variables constant, the odds of TOC failure increased by 0.79 per unit decrease in BMI (95% CI 0.63–0.99), and the odds of TOC failure increased by 0.93 per kg decrease in body weight (95% CI 0.87–1.00). An abnormal tympanogram was not a statistically significant predictor of TOC failure (OR 1.96, 95% CI 0.59–6.42). Of the 47 applicants who passed TOC and were eventually recruited, none subsequently developed otic barotrauma (mean follow-up, 3.3 yr ± 1.5 yr).
Conclusions
Applicants with lower weight and BMI are more likely to develop otic barotrauma with environmental pressure change. Tympanometry cannot be reliably used to identify applicants who would more likely pass TOC.
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Affiliation(s)
- T Ang
- Aeromedical Centre, Republic of Singapore Air Force Medical Service , Singapore 539945
| | - D Tan
- Aeromedical Centre, Republic of Singapore Air Force Medical Service , Singapore 539945
| | - B Goh
- Aeromedical Centre, Republic of Singapore Air Force Medical Service , Singapore 539945
| | - W T Ng
- Saw Swee Hock School of Public Health, National University of Singapore , Singapore 117549
| | - B B C Tan
- Aeromedical Centre, Republic of Singapore Air Force Medical Service , Singapore 539945
| | - B See
- Aeromedical Centre, Republic of Singapore Air Force Medical Service , Singapore 539945
- Saw Swee Hock School of Public Health, National University of Singapore , Singapore 117549
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Ward J, Gill S, Armstrong K, Fogarty T, Tan D, Scott A, Yahya A, Dhaliwal S, Jacques A, Tang C. PO-1384 Simethicone use to Reduce Rectal Variability During Prostate Cancer Radiotherapy, a Randomised Trial. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03348-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Noureldin E, Tan D, Daffalla O, Almutairi H, Ghzwani J, Torno M, Mashi O, Hobani Y, Ding H, Alamri A, Shrwani K, Albarrag A, Eisa Z. DNA Barcoding of Potential Mosquito Disease Vectors (Diptera, Culicidae) in Jazan Region, Saudi Arabia. Pathogens 2022; 11:pathogens11050486. [PMID: 35631007 PMCID: PMC9171578 DOI: 10.3390/pathogens11050486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022] Open
Abstract
The conventional morphological characterization of mosquito species remains heavily used for species identification in Jazan, Saudi Arabia. It requires substantial expertise and time, as well as having difficulty in confirming identity of morphologically similar species. Therefore, to establish a reliable and accurate identification system that can be applied to understanding spatial distribution of local mosquito species from the Jazan region, DNA barcoding was explored as an integrated tool for mosquito species identification. In this study, 44 adult mosquito specimens were analyzed, which contain 16 species belong to three genera of potential mosquito disease vectors (Aedes, Anopheles, and Culex). The specimens were collected from the Jazan region located in southwest Saudi Arabia. These included old and preserved mosquito voucher specimens. In addition, we assessed the genetic distance based on the generated mitochondrial partial COI DNA barcodes to detect cryptic diversity across these taxa. Nine mosquito species belonging to three genera were successfully barcoded and submitted to GenBank, namely: Aedes aegypti, Aedes caspius, Aedes vexans, Aedes vittatus, Anopheles arabiensis, Culex pipiens, Culex quinquefasciatus, Culex sitiens, and Culex tritaeniorhynchus. Of these nine species, Aedes vexans, Aedes vittatus, Culex sitiens, and Culex tritaeniorhynchus were registered in GenBank for the first time from Saudi Arabia. The DNA barcodes generated a 100% match to known barcodes of these mosquito species, that also matched with the morphological identification. Ae. vexans was found to be either a case of cryptic species (subspecies) or a new species from the region. However, more research has to be conducted to prove the latter. This study directly contributes to the development of a molecular reference library of mosquito species from the Jazan region and Saudi Arabia. The library is essential for confirmation of species in support of existing mosquito surveillance and control programmes.
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Affiliation(s)
- Elsiddig Noureldin
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
- Correspondence:
| | - Denise Tan
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #06-05-08, Helios Block, Singapore 128667, Singapore; (D.T.); (M.T.); (H.D.)
- School of Applied Science, Republic Polytechnic, 9 Woodlands Avenue 9, Singapore 738964, Singapore
| | - Ommer Daffalla
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Hatim Almutairi
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Jaber Ghzwani
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Majhalia Torno
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #06-05-08, Helios Block, Singapore 128667, Singapore; (D.T.); (M.T.); (H.D.)
| | - Omar Mashi
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Yahya Hobani
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Huicong Ding
- Environmental Health Institute, National Environment Agency, 11 Biopolis Way, #06-05-08, Helios Block, Singapore 128667, Singapore; (D.T.); (M.T.); (H.D.)
| | - Abdullah Alamri
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
| | - Khalid Shrwani
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
- Department of Clinical Infection, Microbiology, and Immunology, School of Medicine, University of Liverpool, Liverpool L693BX, UK
| | - Ahmed Albarrag
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
- Department of Pathology, School of Medicine, King Saud University, Riyadh 11461, Saudi Arabia
| | - Zaki Eisa
- Saudi Public Health Authority, Vector-Borne Diseases Laboratory, Jazan 45142, Saudi Arabia; (O.D.); (H.A.); (J.G.); (O.M.); (Y.H.); (A.A.); (K.S.); (A.A.); (Z.E.)
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Lee DPS, Peng A, Taniasuri F, Tan D, Kim JE. Impact of fiber-fortified food consumption on anthropometric measurements and cardiometabolic outcomes: A systematic review, meta-analyses, and meta-regressions of randomized controlled trials. Crit Rev Food Sci Nutr 2022; 63:8301-8319. [PMID: 35333681 DOI: 10.1080/10408398.2022.2053658] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The consumption of processed and refined food lacking in fiber has led to global prevalence of obesity and cardiometabolic diseases. Fiber-fortification into these foods can yield potential health improvements to reduce disease risk. This meta-analyses aimed to evaluate how fiber-fortified food consumption changes body composition, blood pressure, blood lipid-lipoprotein panel, and glycemic-related markers. Searches were performed from 5 databases, with 31 randomized controlled trial eventually analyzed. Hedges' g values (95% confidence interval [CI]) attained from outcome change values were calculated using random-effects model. Fiber-fortified food significantly reduced body weight (-0.31 [-0.59, -0.03]), fat mass (-0.49 [-0.72, -0.26]), total cholesterol (-0.54 [-0.71, -0.36]), low-density lipoprotein cholesterol (-0.49 [-0.65, -0.33]), triglycerides (-0.24 [-0.36, -0.12]), fasting glucose (-0.30 [-0.49, -0.12]), and HbA1c (-0.44 [-0.74, -0.13]). Subgroup analysis differentiated soluble fiber as significantly reducing triglycerides and insulin while insoluble fiber significantly reduced body weight, BMI, and HbA1c. Greater outcome improvements were observed with solid/semi-solid food state than liquid state. Additionally, fiber fortification of <15 g/day induced more health outcome benefits compared to ≥15 g/day, although meta-regression found a dose-dependent improvement to waist circumference (p-value = 0.036). Findings from this study suggest that consuming food fortified with dietary fiber can improve anthropometric and cardiometabolic outcomes.Supplemental data for this article is available online at https://doi.org/10.1080/10408398.2022.2053658.
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Affiliation(s)
- Delia Pei Shan Lee
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Aiwei Peng
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Fransisca Taniasuri
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Denise Tan
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
- Science and Technology Department, Nestlé R&D Center (Pte) Ltd, Singapore, Singapore
| | - Jung Eun Kim
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
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Asokkumar R, Seow I, Chin Hong L, Chang J, Tan D, Salazar E. Rostered routine testing for severe acute respiratory coronavirus virus 2 infection among healthcare workers: Do we detect more? J Gastroenterol Hepatol 2022; 37:404-405. [PMID: 34694645 PMCID: PMC8656364 DOI: 10.1111/jgh.15720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022]
Affiliation(s)
- R Asokkumar
- Department of Gastroenterology and HepatologySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
| | - I Seow
- Department of Colorectal SurgerySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
| | - L Chin Hong
- Department of Upper Gastrointestinal and Bariatric SurgerySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
| | - J Chang
- Department of Gastroenterology and HepatologySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
| | - D Tan
- Department of Gastroenterology and HepatologySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
| | - E Salazar
- Department of Gastroenterology and HepatologySingapore General HospitalSingapore,Duke‐NUS Graduate Medical SchoolSingapore
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Tan D, Parus A, Dunbar M, Espeland M, Willmott KR. Cytochrome c oxidase subunit I barcode species delineation methods imply critically underestimated diversity in ‘common’ Hermeuptychia butterflies (Lepidoptera: Nymphalidae: Satyrinae). Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
DNA ‘barcoding’ has contributed greatly to resolving species limits in rapidly diverging tropical insect groups. Here, we explored species diversity in the widespread, cryptic Neotropical butterfly genus Hermeuptychia by generating 601 new sequences of the cytochrome c oxidase I (COI) barcode, tripling available information. Our dataset focused in particular on Ecuador, a biogeographically pivotal country, with additional sequences from Brazil, Costa Rica, French Guiana, Guatemala, Mexico, Panama and Peru. We examined the performance of two phylogeny-based approaches for objectively delineating species, Generalized Mixed Yule Coalescent (GMYC) and Poisson Tree Processes (PTP), as well as a clustering-based approach, Automatic Barcode Gap Discovery (ABGD), on the combined dataset, including our data and 302 published sequences. In general, GMYC and PTP tended to cluster or split likely species as assessed from morphology, depending on model settings, whereas ABGD was less sensitive and produced a more plausible classification. Numerous sequences formed well-supported clades, putative species, that were unrepresented in previously published datasets. The average diversity across all methods was 45 species, in contrast to the 11 species recognized in the current taxonomy. The resulting COI dataset, in combination with ongoing genomic and morphological research, should significantly clarify our understanding of Hermeuptychia species diversity.
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Affiliation(s)
- Denise Tan
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
- Department of Entomology and Nematology, University of Florida, Gainesville, Florida, USA
| | - Anamaria Parus
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Michelle Dunbar
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
- Department of Entomology and Nematology, University of Florida, Gainesville, Florida, USA
| | - Marianne Espeland
- Arthropoda Department, Zoological Research Museum Alexander Koenig, Adenauer allee, Bonn, Germany
| | - Keith R Willmott
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
- Department of Entomology and Nematology, University of Florida, Gainesville, Florida, USA
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20
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Tan A, Lai G, Saw S, Chua K, Takano A, Ong B, Koh T, Jain A, Tan W, Ng Q, Kanesvaran R, Rajasekaran T, Kalshnikova E, Shchegrova S, H. -Ta, Lin J, Renner D, Sethi H, Zimmermann B, Aleshin A, Lim W, Tan E, Skanderup A, Ang M, Tan D. MA07.06 Circulating Tumor DNA for Monitoring Minimal Residual Disease and Early Detection of Recurrence in Early Stage Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.144] [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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21
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Dooms C, Nadal E, Raskin J, Demedts I, Mazieres J, Wislez M, Abdul S, Mun T, Wang C, Viteri S, Le X, How S, Tan D, Takeda M, Veillon R, Karachaliou N, Ellers-Lenz B, Smit E, Wu Y. P47.09 Tepotinib + Osimertinib for EGFR-Mutant NSCLC with Resistance to First-Line Osimertinib Due to MET amplification: INSIGHT 2. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Drilon A, Lin J, Lassen U, Leyvraz S, Liu Y, Patel J, Rosen L, Solomon B, Norenberg R, Dima L, Brega N, Shen L, Moreno V, Kummar S, Tan D. P53.02 Efficacy and Safety of Larotrectinib in Patients With Tropomyosin Receptor Kinase (TRK) Fusion-Positive Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.551] [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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23
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Li F, Zhang F, Tan D, Ye J, Tong W. Robotic transanal total mesorectal excision combined with intersphincteric resection for ultra-low rectal cancer. Tech Coloproctol 2021; 25:1335-1336. [PMID: 34236533 DOI: 10.1007/s10151-021-02494-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/23/2021] [Indexed: 11/24/2022]
Affiliation(s)
- F Li
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - F Zhang
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - D Tan
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - J Ye
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China.,Department of General Surgery, The People's Hospital of Shapingba District, Chongqing, China
| | - W Tong
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China.
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Toh DWK, Lee WY, Zhou H, Sutanto C, Lee DPS, Tan D, Kim JE. Wolfberry Consumption with a Healthy Dietary Pattern Lowers Oxidative Stress and Improves Carotenoids Status in Middle-Aged and Older Adults: A Randomized Controlled Trial. Curr Dev Nutr 2021. [DOI: 10.1093/cdn/nzab034_013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objectives
The incorporation of zeaxanthin rich wolfberry (Lycium barbarum) into a healthy dietary pattern may augment its antioxidant effects although evidence evaluating whole fruits is lacking. The objectives of this study are to (1) investigate the impact of dietary counselling, either with or without whole dried wolfberry on oxidative stress status in middle-aged and older Singaporean adults and (2) delineate underlying mechanisms by examining associations with the corresponding changes in carotenoids status.
Methods
In this 16-week, parallel design randomized controlled trial, 40 subjects (29 F, 11 M; aged 50 to 64 y) received dietary counselling to follow a healthy dietary pattern. Compared to the control group (CG, n = 18), the wolfberry group (WG, n = 22) additionally cooked and consumed 15 g/d whole dried wolfberry with their main meals. Biomarkers of oxidative stress (plasma malondialdehyde (MDA)
by thiobarbituric acid reactive substance assay and 8-isoprostanes by ELISA) were measured at baseline and week 16. Plasma and dietary carotenoids analyzed by HPLC and 3-day food records respectively were measured at baseline, week 8 and week 16 while skin carotenoids status (SCS) by resonance Raman spectroscopy was assayed every 4 weeks.
Results
Plasma 8-isoprostanes showed a time effect (P < 0.05), attributed to the marked decline in the WG only (WG: −19.0 ± 43.6 ng/L; CG: −7.7 ± 38.7 ng/L, mean ± SD) though no effect was observed for MDA. A significant interaction effect (P < 0.001), driven by higher plasma zeaxanthin (WG: +0.08 ± 0.13 nmol/L; CG: −0.03 ± 0.05 nmol/L) and SCS (WG: +4242 ± 4938 a.u.; CG: +1713 ± 5921 a.u.) was observed in the WG with a marked increase evident from week 8 onwards although concentrations of the other plasma carotenoids were maintained. Moreover, the change value for plasma zeaxanthin in the WG was inversely associated with the corresponding changes in plasma 8-isoprostanes (−0.21 (−0.43, 0.00) ng/µmol, regression coefficient (95% CI); P = 0.05). This same association was absent in the CG.
Conclusions
Consuming wolfberry with a healthy dietary pattern attenuates oxidative stress in middle-aged and older adults and this may be attributed to the rich zeaxanthin content in wolfberry.
Funding Sources
National University of Singapore Ministry of Education, Singapore Agency for Science, Technology and Research.
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Tan D, Sutanto C, Lin JWX, Lê KA, Kim JE. Carbohydrate Quality of a Middle-aged and Older Population in Singapore and Its Association with Cardiometabolic Health. Curr Dev Nutr 2021. [DOI: 10.1093/cdn/nzab033_053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Objectives
Carbohydrate quality plays a key role in cardiometabolic health, though this has not been well investigated in Asian populations. This study aimed to assess the carbohydrate quality of middle-aged and older adults in Singapore, and its association with various cardiometabolic health-related markers.
Methods
A secondary data analysis of a cross-sectional study consisting of 104 adults (59 ± 6 years, mean ± SD) was conducted. Carbohydrate quality was evaluated by their adherence to: (i) Singapore recommended daily allowance (RDA) for dietary fiber intake, (ii) Singapore recommended daily whole grain intake, (iii) World Health Organization free sugars limit and (iv) the balanced carbohydrate metrics (BCM). The BCM was reflected by a ratio of at least 1g of fiber per 10g of carbohydrates (10:1, simple ratio), or variations including free sugars criteria. Food intake was collected using 3-day
food record. Measurements of cardiometabolic health-related markers were body mass index, waist circumference, blood pressure, blood lipid-lipoprotein markers (total, low-density lipoprotein and high-density lipoprotein cholesterol and triglycerides) and glucose and 10-year risk to coronary heart disease. The association between dietary carbohydrate quality and cardiometabolic health-related markers, as well as associations amongst the 4 measures of carbohydrate quality were evaluated using Fisher's exact test.
Results
36%, 20%, 87% and 34% of the population met the fiber RDA, whole grain recommendation, free sugars limit and BCM respectively. A significant association in adherence to each measure of carbohydrate quality was found across all 4 measures (P < 0.05), except for between the whole grain recommendation and free sugars limit. The simple ratio was associated with a lower systolic blood pressure (P = 0.04) while no association was observed with other cardiometabolic health-related markers.
Conclusions
Consuming a diet adhering to the simple ratio of at least 1g of fiber for every 10g of carbohydrates may improve blood pressure and subsequently lower cardiometabolic disease risk.
Funding Sources
National University of Singapore, Singapore Economic Development Board and Société des Produits Nestlé SA
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De Mel S, Goh J, Rashid MBMA, Zhang XY, Jaynes P, Liu X, Poon L, Chan E, Lee J, Chee YL, Koh LP, Tan LK, Soh TG, Yuen YC, Loi H, Ng S, Goh X, Tan D, Cheah DMZ, Pang WL, Huang D, Chan JY, Somasundaram N, Tang T, Lim ST, Ong CK, Chng W, Chow EK, Jeyasekharan AD. CLINICAL APPLICATION OF AN EX‐VIVO PLATFORM TO GUIDE THE CHOICE OF DRUG COMBINATIONS IN RELAPSED/REFRACTORY LYMPHOMA; A PROSPECTIVE STUDY. Hematol Oncol 2021. [DOI: 10.1002/hon.147_2880] [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: 11/06/2022]
Affiliation(s)
- S De Mel
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - J Goh
- National University of Singapore Cancer Science Institute of Singapore Singapore Singapore
| | | | - X. Y Zhang
- National University of Singapore Cancer Science Institute of Singapore Singapore Singapore
| | - P Jaynes
- National University of Singapore Cancer Science Institute of Singapore Singapore Singapore
| | - X Liu
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - L Poon
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - E Chan
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - J Lee
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - Y. L Chee
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - L. P Koh
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - L. K Tan
- National University Hospital Department of Laboratory Medicine Singapore Singapore
| | - T. G Soh
- National University Hospital Department of Laboratory Medicine Singapore Singapore
| | - Y. C Yuen
- National University Health System Department of Pharmacy Singapore Singapore
| | - Hoi‐Y Loi
- National University Hospital Singapore Department of Diagnostic Imaging Singapore Singapore
| | - Siok‐B Ng
- National University of Singapore Department of Pathology Yong Loo Lin School of Medicine Singapore Singapore
| | - X Goh
- National University Hospital, Department of Otorhinolaryngology Singapore Singapore
| | - D Tan
- Mt Elizabeth Hospital, Dr Daryl Tan Clinic for Lymphoma, Myeloma and Blood Disorders Singapore Singapore
| | - D. M. Z Cheah
- National Cancer Centre Singapore Lymphoma Genomic Translational Research Laboratory Division of Cellular and Molecular Research Singapore Singapore
| | - W. L Pang
- National Cancer Centre Singapore Lymphoma Genomic Translational Research Laboratory Division of Cellular and Molecular Research Singapore Singapore
| | - D Huang
- National Cancer Centre Singapore Lymphoma Genomic Translational Research Laboratory Division of Cellular and Molecular Research Singapore Singapore
| | - J. Y Chan
- National Cancer Centre Singapore Division of Medical Oncology Singapore Singapore
| | - N Somasundaram
- National Cancer Centre Singapore Division of Medical Oncology Singapore Singapore
| | - T Tang
- National Cancer Centre Singapore Division of Medical Oncology Singapore Singapore
| | - S. T Lim
- National Cancer Centre Singapore Division of Medical Oncology Singapore Singapore
| | - C. K Ong
- National Cancer Centre Singapore Division of Cellular and Molecular Research Singapore Singapore
| | - W.‐J Chng
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
| | - E. K Chow
- National University of Singapore Cancer Science Institute of Singapore Singapore Singapore
| | - A. D Jeyasekharan
- National University Health System Department of Haematology‐Oncology National University Cancer Institute, Singapore Singapore Singapore
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27
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Toh DWK, Lee WY, Zhou H, Sutanto CN, Lee DPS, Tan D, Kim JE. Wolfberry ( Lycium barbarum) Consumption with a Healthy Dietary Pattern Lowers Oxidative Stress in Middle-Aged and Older Adults: A Randomized Controlled Trial. Antioxidants (Basel) 2021; 10:antiox10040567. [PMID: 33917032 PMCID: PMC8067708 DOI: 10.3390/antiox10040567] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/05/2021] [Accepted: 04/05/2021] [Indexed: 12/25/2022] Open
Abstract
Incorporating zeaxanthin-rich wolfberry (Lycium barbarum) into a healthy dietary pattern may augment its antioxidant potential. The present 16-week, parallel design randomized controlled trial aimed to investigate the impact of adhering to a healthy dietary pattern, either with or without whole dried wolfberry (15 g/d) on oxidative stress status (plasma malondialdehyde and 8-iso-prostaglandin F2α) in middle-aged and older adults. Changes to carotenoids status (plasma and skin carotenoids) and body composition were further evaluated to explore potential mechanisms which underlie the antioxidant properties of wolfberry. Plasma 8-iso-prostaglandin F2α, plasma zeaxanthin and skin carotenoids status were significantly raised in the wolfberry consuming group (n = 22; p < 0.05) compared to the control group which showed no changes (n = 18). Likewise in the wolfberry group only, inverse association was observed between the change values of plasma zeaxanthin and plasma 8-iso-prostaglandin F2α (−0.21 (−0.43, 0.00) ng/µmol, regression coefficient (95% CI); p = 0.05). Wolfberry consumption with a healthy dietary pattern may serve as a dietary strategy to attenuate lipid peroxidation among middle-aged and older adults who are at a heightened risk of oxidative stress induced age-related disorders. The antioxidant properties of wolfberry may be attributed to its rich zeaxanthin content.
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Affiliation(s)
| | | | | | | | | | | | - Jung Eun Kim
- Correspondence: ; Tel.: +65-6516-1136; Fax: +65-6775-7895
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Lim K, Tan G, Tan D, Tan A, Chen E. P37.18 Lung NSCLC Molecular Diagnostic Comparison Between NGS and Multiplex PCR Assays. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.765] [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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Tan W, Chua B, Yin D, Tan S, Tan D, Ang M, Kanesvaran R, Jain A, Rajasekaran T, Lai G, Toh C, Tan E, Ng Q, Lim W. P76.46 First-Line Osimertinib in Asian Patients with Advanced EGFR-Mutant Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1103] [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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Yuan J, Lim E, Ma S, Chua K, Lee Y, Lim M, Yeo X, Phua C, Takano A, Aung Z, Lim K, Tan E, Tan D, Chew G, Tam W. P69.05 Molecular and Cellular Heterogeneity Underpin Treatment Response Across a Spectrum of EGFR-Mutant Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Tan A, Lai G, Tan G, Seet A, Takano A, Alvarez J, Skanderup A, Tan W, Ang M, Kanesvaran R, Ng Q, Jain A, Rajasekaran T, Lim W, Tan E, Lim K, Tan D. FP14.13 Molecular Characterisation and Clinical Outcomes in RET Rearranged Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.156] [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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Tan A, Ong B, Koh T, Chen J, Oo H, Lai G, Tan W, Ang M, Kanesvaran R, Ng Q, Jain A, Rajasekaran T, Zhai W, Skanderup A, Lim K, Tan E, Lim W, Tan D, Takano A. P38.03 Immunohistochemical, Histologic and Genomic Characterisation of Early Stage Pulmonary Invasive Mucinous Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.784] [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: 11/15/2022]
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Felip E, Minotti V, Tan D, Wolf J, Mark M, Boyer M, Hughes B, Bearz A, Moro-Sibilot D, Le X, Vazquez J, Massuti B, Liu N, Hao L, Cheng Y, Tiedt R, Cobo M. P76.03 Efficacy and Safety of Capmatinib Plus Nivolumab in Pretreated Patients with EGFR Wild-Type Non–Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1060] [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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Ma J, Tan S, Yin D, Tran A, Tan D, Ang M, Takano A, Lim K, Kanesvaran R, Jain A, Rajasekaran T, Tan E, Lim D, Ng Q, Tan W. P76.88 Real-World Data of Osimertinib in Patients with Metastatic EGFRm+ NSCLC who Progressed on First-Line EGFR TKIs. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1145] [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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Loong H, Goto K, Park K, Ohe Y, Nishio M, Cho B, Kim Y, French P, Soldatenkova V, Tan D. FP14.10 Efficacy and Safety of Selpercatinib (LOXO-292) in East Asian Patients with RET Fusion-Positive NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lai G, Alvarez J, Yeo J, Sim N, Tan A, Zhou S, Suteja L, Lim T, Rohatgi N, Yeong J, Takano A, Lim K, Gogna A, Too C, Zhuang K, Jain A, Tan W, Kanesvaran R, Ng Q, Ang M, Rajasekaran T, Wang L, Toh C, Lim W, Tam W, Ginhoux F, Tan S, Skanderup A, Tan D, Tan E. OA01.06 Randomised Phase 2 Study of Nivolumab (N) Versus Nivolumab and Ipilimumab (NI) Combination in EGFR Mutant NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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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Saw S, Lai G, Zhou S, Chen J, Ang M, Chua K, Kanesvaran R, Ng Q, Jain A, Tan W, Rajasekaran T, Lim D, Fong K, Takano A, Cheng X, Lim K, Koh T, Ong B, Tan E, Skanderup A, Tan D. OA06.05 Molecular and Clinical Features Associated with Relapse in Early Stage EGFR-Mutated NSCLC: A Single Institution Knowledge Bank. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.293] [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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38
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Tan A, Chua K, Teng Y, Takano A, Alvarez J, Nahar R, Rohatgi N, Lai G, Aung Z, Yeong J, Lim K, Naeini M, Kassam I, Jain A, Tan W, Gogna A, Too C, Kanesvaran R, Ng Q, Ang M, Rajasekaran T, Devanand A, Phua G, Tan B, Lee Y, Wang L, Teo A, Khng A, Lim M, Suteja L, Toh C, Lim W, Iyer N, Tam W, Tan E, Zhai W, Hillmer A, Skanderup A, Tan D. MA13.08 Genomic and Transcriptomic Features of Distinct Resistance Trajectories in EGFR Mutant Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.269] [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: 11/17/2022]
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Alvarez J, Chua K, Sim N, Abedi M, Chen J, Tan A, Lai G, Takano A, Lim W, Tan E, Lim K, Zhai W, Tan D, Skanderup A. P59.08 THOR: Multi-Ethnic, Open Access Thoracic Cancer Genomics Resource. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.959] [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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Lee J, Tan A, Zhou S, Liu S, Kim D, Masuda K, Batra U, Hayashi H, Goto Y, Tan S, Wu Y, Tan D, Ahn M. MA04.06 Clinical Characteristics and Outcomes in Advanced KRAS Mutant NSCLC – A Multi-Centre Collaboration in Asia (ATORG-005). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tan D, Farago A, Kummar S, Moreno V, Patel J, Lassen U, Solomon B, Rosen L, Leyvraz S, Reeves J, Brega N, Dima L, Childs B, Drilon A. MA11.09 Efficacy and Safety of Larotrectinib in Patients with Tropomyosin Receptor Kinase (TRK) Fusion Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
Despite the amazing progress in the treatment of gastric cancer (GC), it is still the third leading cause of cancer death in the world. This study explored the key genes that are related to the prognosis and pathogenesis of GC. Data from the cancer genome atlas (TCGA) and Oncomine were applied to evaluate the expression of cystatin 2 (CST2) in GC samples. Kaplan-Meier plotter was carried out to detect the overall survival of GC patients with different expression levels of CST2. Gene Set Enrichment Analysis (GSEA) was carried out to investigate the functions and pathways connected with CST2 expression. Quantitative real-time polymerase chain reaction (qPCR) and Western blot assays were used to assess CST2 expression. The biological properties of GC cells were assessed with the support of cell proliferation and Transwell assays. Important proteins involved in the regulation of CST2 in GC cell behaviors were evaluated by Western blot. Through analysis of the database, we found that CST2 expression was significantly upregulated in GC samples and actively related to GC patients' poor outcomes. Importantly, the analysis of GSEA showed that GST2 expression was closely connected with the proliferation and migration of cells, as well as the TGF-β1 signaling pathway. In addition, biological assays illustrated that over-expression of CST2 strengthened the activity and metastasis of GC cells. After the upregulation of CST2, the expression of cyclin D1, N-cadherin, vimentin, TGF-β1, and Smad4 increased, and E-cadherin expression decreased. Our findings revealed that over-expression of CST2 enhanced the growth, migration, and invasion of GC cells through modulating the epithelial-mesenchymal transition (EMT) and TGF-β1 signaling pathway, affording a possible biomarker for the treatment of GC.
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Affiliation(s)
- W P Zhang
- Department of General Surgery, Ruijin Hospital/Lu Wan Branch, School of Medicine, Shanghai Jiaotong University, Shanghai, P. R. China
| | - Y Wang
- Department of General Surgery, Ruijin Hospital/Lu Wan Branch, School of Medicine, Shanghai Jiaotong University, Shanghai, P. R. China
| | - D Tan
- Department of General Surgery, Ruijin Hospital/Lu Wan Branch, School of Medicine, Shanghai Jiaotong University, Shanghai, P. R. China
| | - C G Xing
- Department of General Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
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Tsoi K, Tan D, Stevenson J, Evans S, Jeys L, Botchu R. Indeterminate pulmonary nodules are not associated with worse overall survival in Ewing Sarcoma. J Clin Orthop Trauma 2021; 16:58-64. [PMID: 33717939 PMCID: PMC7920159 DOI: 10.1016/j.jcot.2020.12.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/26/2020] [Accepted: 12/16/2020] [Indexed: 11/26/2022] Open
Abstract
AIM Lung metastases are a negative prognostic factor in Ewing sarcoma, however, the incidence and significance of sub-centimetre pulmonary nodules at diagnosis is unclear. The aims of this study were to (1): determine the incidence of indeterminate pulmonary nodules (IPNs) in patients diagnosed with Ewing sarcoma (2); establish the impact of IPNs on overall and metastasis-free survival and (3) identify patient, oncological and radiological factors that correlate with poorer prognosis in patients that present with IPNs on their staging chest CT. MATERIALS & METHODS Between 2008 and 2016, 173 patients with a first presentation of Ewing sarcoma of bone were retrospectively identified from an institutional database. Staging and follow-up chest CTs for all patients with IPN were reviewed by a senior radiologist. Clinical and radiologic course were examined to determine overall- and metastasis-free survival for IPN patients and to identify demographic, oncological or nodule-specific features that predict which IPN represent true lung metastases. RESULTS Following radiologic re-review, IPN were found in 8.7% of patients. Overall survival for IPN patients was comparable to those with a normal staging chest CT (2-year overall survival of 73.3% [95% CI 43.6-89] and 89.4% [95% CI 81.6-94], respectively; p = 0.34) and was significantly better than for patients with clear metastases (46.0% [95% CI 31.9-59]; p < 0.0001). Similarly, there was no difference in metastasis-free survival between 'No Metastases' and 'IPN' patients (p = 0.16). Lung metastases developed in 40% of IPN patients at a median 9.6 months. Reduction of nodule size on neoadjuvant chemotherapy was associated with worse overall survival in IPN patients (p = 0.0084). CONCLUSION IPN are not uncommon in patients diagnosed with Ewing sarcoma. In this study, we were unable to detect a difference in overall- or metastasis-free survival between patients with IPN at diagnosis and patients with normal staging chest CTs.
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Affiliation(s)
- K.M. Tsoi
- Oncology Department, Royal Orthopaedic Hospital, Birmingham, UK
| | - D. Tan
- Oncology Department, Royal Orthopaedic Hospital, Birmingham, UK
| | - J. Stevenson
- Oncology Department, Royal Orthopaedic Hospital, Birmingham, UK,Aston University Medical School, Birmingham, UK
| | - S. Evans
- Oncology Department, Royal Orthopaedic Hospital, Birmingham, UK
| | - L.M. Jeys
- Oncology Department, Royal Orthopaedic Hospital, Birmingham, UK,Aston University Medical School, Birmingham, UK
| | - R. Botchu
- Department of Musculoskeletal Radiology, Royal Orthopaedic Hospital, Birmingham, UK,Corresponding author. Department of Musculoskeletal Radiology, The Royal Orthopedic Hospital, Bristol Road South, Northfield, Birmingham, UK.
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Li Y, Du X, Liu S, Tan D, Li Z, Li L, Miao F. PNS14 Investigation of Physicians’ Digital Activities on Mitigating the IMPACT of Covid-19 in China. Value Health Reg Issues 2020. [PMCID: PMC7487513 DOI: 10.1016/j.vhri.2020.07.433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tan D. REVIEW CHAPTER ON IDEAL STUDENT LEADERSHIP AND THE IMPACT ON YOUTH DEVELOPMENT: LEADERSHIP AND PSYCHOLOGY FROM A PRACTITIONER’S PERSPECTIVE. Leadership 2020. [DOI: 10.1142/9789811213236_0014] [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: 11/18/2022]
Affiliation(s)
- D. Tan
- Singapore Chinese Chamber of Commerce & Industry, Singapore
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Naghiloo M, Tan D, Harrington PM, Alonso JJ, Lutz E, Romito A, Murch KW. Heat and Work Along Individual Trajectories of a Quantum Bit. Phys Rev Lett 2020; 124:110604. [PMID: 32242716 DOI: 10.1103/physrevlett.124.110604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 02/07/2020] [Indexed: 06/11/2023]
Abstract
We use a near quantum limited detector to experimentally track individual quantum state trajectories of a driven qubit formed by the hybridization of a waveguide cavity and a transmon circuit. For each measured quantum coherent trajectory, we separately identify energy changes of the qubit as heat and work, and verify the first law of thermodynamics for an open quantum system. We further establish the consistency of these results by comparison with the master equation approach and the two-projective-measurement scheme, both for open and closed dynamics, with the help of a quantum feedback loop that compensates for the exchanged heat and effectively isolates the qubit.
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Affiliation(s)
- M Naghiloo
- Department of Physics, Washington University, St. Louis, Missouri 63130, USA
| | - D Tan
- Department of Physics, Washington University, St. Louis, Missouri 63130, USA
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
| | - P M Harrington
- Department of Physics, Washington University, St. Louis, Missouri 63130, USA
| | - J J Alonso
- Department of Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
| | - E Lutz
- Institute for Theoretical Physics I, University of Stuttgart, D-70550 Stuttgart, Germany
| | - A Romito
- Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - K W Murch
- Department of Physics, Washington University, St. Louis, Missouri 63130, USA
- Institute for Materials Science and Engineering, St. Louis, Missouri 63130, USA
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Mountzios G, Remon J, Novello S, Blais N, Califano R, Cufer T, Dingemans AM, Liu SV, Peled N, Pennell NA, Reck M, Rolfo C, Tan D, Vansteenkiste J, West H, Besse B. Position of an international panel of lung cancer experts on the decision for expansion of approval for pembrolizumab in advanced non-small-cell lung cancer with a PD-L1 expression level of ≥1% by the USA Food and Drug Administration. Ann Oncol 2019; 30:1686-1688. [PMID: 31504132 DOI: 10.1093/annonc/mdz295] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G Mountzios
- Department of Medical Oncology, Henry Dunant Hospital Center, Athens, Greece.
| | - J Remon
- Department of Medical Oncology, CIOCC HM Delfos Hospital, Barcelona, Spain
| | - S Novello
- Department of Oncology, University of Turin, AOU San Luigi, Orbassano, Italy
| | - N Blais
- Centre Hospitalier Universitaire de Montréal, University of Montreal, Montreal, Canada
| | - R Califano
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester; Division of Cancer Sciences, University of Manchester, Manchester, UK
| | - T Cufer
- University Clinic Golnik, Medical Faculty Ljubljana, Slovenia
| | - A M Dingemans
- Department of Respiratory Medicine, Maastricht University Medical Center, Maastricht and Erasmus Medical Center, Rotterdam, The Netherlands
| | - S V Liu
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, USA
| | - N Peled
- Soroka Medical Center and Ben-Gurion University, Beer-Sheva, Israel
| | - N A Pennell
- Hematology and Medical Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, USA
| | - M Reck
- Lung Clinic Grosshansdorf, Airway Research Center North, German Center for Lung Research, Grosshansdorf, Germany
| | - C Rolfo
- Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, USA
| | - D Tan
- Division of Medical Oncology, National Cancer Centre, Singapore
| | - J Vansteenkiste
- Respiratory Oncology Unit, University Hospital KU Leuven, Leuven, Belgium
| | - H West
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, USA
| | - B Besse
- Cancer Medicine Department, Institut Gustave Roussy, Villejuif; Université Paris-Saclay, Orsay, France
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Gutierrez M, Hellmann M, Gubens M, Aggarwal C, Tan D, Felip E, Lam W, Chiu J, Lee J, Yang J, Garon E, Basso A, Ma H, Fong L, Snyder A, Yuan J, Herbst R. P1.01-107 KEYNOTE-495/KeyImPaCT: Phase 2 Biomarker-Directed Study of Pembrolizumab-Based Therapy for Non–Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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49
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Tan A, Chua K, Takano A, Alvarez J, Ong B, Koh T, Aung Z, Jain A, Lai G, Tan W, Ang M, Ng Q, Kanesvaran R, Rajasekaran T, Iyer N, Lim W, Zhai W, Toh C, Skanderup A, Tan E, Tan D. P1.17-07 Neoadjuvant Gefitinib in Resectable Early Stage EGFR Mutant Non-Small Cell Lung Cancer (NSCLC): A Window-of-Opportunity Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1281] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Tan A, Lai G, Tan G, Poon S, Doble B, Lim T, Aung Z, Takano A, Tan W, Ang M, Tan B, Devanand A, Too C, Gogna A, Ong B, Koh T, Kanesvaran R, Ng Q, Jain A, Rajasekaran T, Lim A, Lim W, Toh C, Tan E, Lim K, Tan D. P1.09-19 High-Throughput Next Generation Sequencing of Treatment-Naïve Non-Squamous NSCLC: The Singapore National Lung Profiling Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1048] [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: 10/25/2022]
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