595 results match your criteria: "University Medicine Cluster[Affiliation]"

Objective: Conventional immunoassays detect autoantibodies related to systemic lupus erythematosus (SLE) via recognition of epitopes on autoantigens expressed in their denatured rather than native conformational state, casting difficulty in evaluating the genuine pathogenicity of the autoantibodies. We aimed to use a novel high-throughput protein microarray platform to identify autoantibodies against native autoantigens in SLE sera.

Methods: Sera from SLE patients and those of gender-, age-, and ethnicity-matched healthy controls (HC) were screened against more than 1,600 immune-related antigens of native conformation.

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Attitudes and Behaviors of Patients With Rheumatic Diseases During the Early Stages of the COVID-19 Outbreak.

J Rheumatol

January 2021

M.H. Ma, MBBS, MRCP, PhD, FAMS, S.H. Tay, MBBS, PhD, P.P. Cheung, MBBS, PhD, FRACP, A. Santosa, MBBS, MRCP, MMed, FAMS, A. Mak, MMed Sc, MBBS, PhD, MD, M. Lahiri, MBBS, MD, Senior Consultant, Rheumatology and Assistant Professor, Medicine, Division of Rheumatology, University Medicine Cluster, National University Health System, and Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore;

Objective: To evaluate attitudes and behaviors of patients with rheumatic diseases during the coronavirus disease 2019 (COVID-19) pandemic.

Methods: An online survey delivered by text message to 4695 patients on follow-up at a tertiary rheumatology center. Latent class analysis was performed on the survey variables.

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Response.

Chest

September 2020

Division of Respiratory and Critical Care Medicine, University Medicine Cluster, National University Health System, Singapore.

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We compared the somatostatin analog radioligand, DOTANOC, with FDG, to determine whether there was increased detection of active or sub-clinical lesions in pulmonary tuberculosis (TB) with DOTANOC. Three groups were recruited: (1) active pulmonary TB; (2) IGRA-positive household TB contacts; (3) pneumonia (non-TB). DOTANOC PET/MRI followed by FDG PET/MRI was performed in active TB and pneumonia groups.

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Potentially fatal severe brady arrythmias related to Lopinavir-Ritonavir in a COVID 19 patient.

J Microbiol Immunol Infect

February 2021

Division of Respiratory and Critical Care Medicine, University Medicine Cluster, National University Health System, Singapore; Fast and Chronic Programmes, Alexandra Hospital, National University Health System, Singapore.

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Herpes Zoster-Associated Abdominal Pseudohernia.

Am J Med

February 2021

Chronic Program, Alexandra Hospital, National University Health System, Singapore; Division of Rheumatology, University Medicine Cluster, National University Hospital, National University Health System, Singapore.

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Introduction: Volume assessment in end-stage kidney disease patients on hemodialysis (HD) remains inadequate by existing methods: clinical examination, bioimpedance spectroscopy, measurement of inferior vena cava diameter by ultrasound (IVCD), and plasma B-type natriuretic peptide (NT-pro BNP). This study aims to compare the performance of lung ultrasound against existing methods for volume assessment in a HD cohort.

Methods: Two nephrologists independently performed 28-point lung ultrasound immediately before and after midweek HD in 50 patients.

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The costs of an expanded screening criteria for COVID-19: A modelling study.

Int J Infect Dis

November 2020

Division of Infectious Diseases, University Medicine Cluster, National University Health System, Singapore and Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Objectives: Nosocomial infection is an ongoing concern in the COVID-19 outbreak. The effective screening of suspected cases in the healthcare setting is therefore necessary, enabling the early identification and prompt isolation of cases for epidemic containment. We aimed to assess the cost and health outcomes of an extended screening strategy, implemented in Singapore on 07 February 2020, which maximizes case identification in the public healthcare system.

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Lactobacillus Plantarum 108 Inhibits Streptococcus mutans and Candida albicans Mixed-Species Biofilm Formation.

Antibiotics (Basel)

August 2020

Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore (NDRIS), National Dental Centre Singapore, SingHealth Duke NUS Medical School, 5 Second Hospital Avenue, Singapore 168938, Singapore.

is the principal biofilm forming oral pathogen associated with dental caries. Studies have shown that , a commensal oral fungus is capable of forming pathogenic mixed-species biofilms with The treatment of bacterial and fungal infections using conventional antimicrobial agents has become challenging due to the antimicrobial resistance of the biofilm mode of growth. The present study aimed to evaluate the efficacy of secretory components of , a potentially promising probiotic strain, against and single and mixed-species biofilms.

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Medical School Approach to Manage the Current COVID-19 Crisis.

Acad Med

August 2020

Vice-dean (education), Yong Loo Lin School of Medicine, National University of Singapore, and senior consultant rheumatologist, University Medicine Cluster, National University Hospital, Singapore.

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The complete picture regarding transmission modes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unknown. This review summarises the available evidence on its transmission modes, our preliminary research findings and implications for infection control policy, and outlines future research directions. Environmental contamination has been reported in hospital settings occupied by infected patients, and is higher in the first week of illness.

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Clinical Outcomes of Complications Following Self-Expandable Metallic Stent Insertion for Benign Tracheobronchial Stenosis.

Medicina (Kaunas)

July 2020

Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.

The use of metallic stents in benign TBS is controversial. Here, we report the clinical outcomes of patients who developed complications due to self-expandable metallic stent (SEMS) insertion for benign TBS. Our institution, which is the largest and most active referral hospital for airway stenosis in South Korea, only uses silicone stents.

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Introduction: Novel and efficient healthcare approaches are needed to better serve increasingly older chronic disease patients. Many effective integrated chronic disease management strategies have emerged from the primary care sector. However, in many Asian and developing countries, primary care is underdeveloped, and patients prefer secondary-based services.

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Purpose Of Review: The use of slit lamp shields has been recommended by the American Academy of Ophthalmology as an infection control measure during the coronavirus disease 2019 pandemic. However, there is limited evidence regarding its efficacy to reduce viral transmission risks. We aim to provide an evidence-based approach to optimize the use of slit lamp shields during clinical examination.

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Article Synopsis
  • Previous infections can shape how the immune system responds to new viruses, but little is known about memory T cells reacting to SARS-CoV-2.
  • In a study with COVID-19 survivors, researchers found specific T cells targeting the nucleocapsid protein of SARS-CoV-2 and discovered long-lasting memory T cells from individuals who recovered from SARS that recognized this same protein 17 years later.
  • They also identified SARS-CoV-2-specific T cells in people with no prior infections, suggesting cross-reactivity and diverse immune responses to related coronaviruses, highlighting the need to understand how existing T cell immunity influences COVID-19 outcomes.
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Loss of diversity in the gut microbiome can persist for extended periods after antibiotic treatment, impacting microbiome function, antimicrobial resistance and probably host health. Despite widespread antibiotic use, our understanding of the species and metabolic functions contributing to gut microbiome recovery is limited. Using data from 4 discovery cohorts in 3 continents comprising >500 microbiome profiles from 117 individuals, we identified 21 bacterial species exhibiting robust association with ecological recovery post antibiotic therapy.

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Finding Waldo in Narcosis: Identifying Respiratory-Onset Motor Neuron Disease in a Chronic Smoker With Triple-Vessel Coronary Heart Disease.

Am J Med

December 2020

Associate Consultant, Division of Respiratory and Critical Care Medicine, University Medicine Cluster, National University Hospital, National University Health System, Singapore; Clinical Lecturer, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address:

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World-Wide FINGERS Network: A global approach to risk reduction and prevention of dementia.

Alzheimers Dement

July 2020

Division of Medical and Scientific Relations, Alzheimer's Association, Chicago, Illinois, USA.

Reducing the risk of dementia can halt the worldwide increase of affected people. The multifactorial and heterogeneous nature of late-onset dementia, including Alzheimer's disease (AD), indicates a potential impact of multidomain lifestyle interventions on risk reduction. The positive results of the landmark multidomain Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability (FINGER) support such an approach.

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Differential Effects of Early Energy and Protein Inadequacies on the Outcome of Critically Ill Patients.

Nutr Clin Pract

April 2021

Saw Swee Hock School of Public Health, National University of Singapore and National, University Health System, Singapore, Singapore.

Background: Differential effects of energy and protein inadequacies of intensive care unit (ICU) patients in first 72 hours are unknown.

Methods: We included all adult patients receiving mechanical ventilation (MV) > 72 hours between August 2012 and December 2014. Energy and protein doses were 25 kcal/kg/day and 1.

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Background: Hepatitis B virus (HBV) infection is the most common cause of liver disease and liver cancer in Singapore, being endemic despite availability of an efficacious vaccine.

Objective: To assess the factors associated with HBV screening and vaccination.

Methods: Using mixed methods analysis, focus group discussions were conducted alongside a cross-sectional study amongst 784 Singapore Citizens and Permanent Residents aged 25-69 residing in Housing and Development Board (HDB) flats.

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Non-adherence in non-inferiority trials: pitfalls and recommendations.

BMJ

July 2020

Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.

Non-adherence in non-inferiority trials can affect treatment effect estimates and often increases the chance of claiming non-inferiority under the standard intention-to-treat analysis. This article discusses the implications of different patterns of non-adherence in non-inferiority trials and offers practical recommendations for trial design, alternative analysis strategies, and outcome reporting to reduce bias in treatment estimates and improve transparency in reporting.

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