128 results match your criteria: "Nanyang Technology University[Affiliation]"

Introduction: Interpretation and analysis of magnetic resonance imaging (MRI) scans in clinical settings comprise time-consuming visual ratings and complex neuroimage processing that require trained professionals. To combat these challenges, artificial intelligence (AI) techniques can aid clinicians in interpreting brain MRI for accurate diagnosis of neurodegenerative diseases but they require extensive validation. Thus, the aim of this study was to validate the use of AI-based AQUA (Neurophet Inc.

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Background: Hospital-at-home (HaH) is an alternative care model that allows patients to receive quality, individualized care from their homes. This can reduce hospital bed utilization through early supported discharge (ESD) or admission avoidance (AA).

Objectives: This study aimed to explore the patient's perceptions and anticipated factors of this model of care with a focus on the factors that affect their acceptance of ESD in a multi-ethnic Asian country that remains underexplored.

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Mycelium-bound composites (MBCs) grown from fungi onto solid lignocellulosic substrates offer a sustainable alternative to petroleum-based materials. However, their limited mechanical strength and durability are often insufficient for practical applications. In this work, we report a method for designing and developing strong and thermally insulating MBCs.

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Background: Respiratory syncytial virus (RSV) is the most common cause of pediatric acute lower respiratory tract infection worldwide. In Singapore, RSV substantially contributes to the morbidity and mortality of children aged < 5 years, particularly during their first year of life, with hospitalization rates peaking during epidemic outbreaks. This expert consensus paper aims to provide an overview of the RSV disease burden, unmet needs, and the urgency for RSV prevention in all infants.

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Age-specific neural responses to SMA and M1 stimulation during implicit motor sequence learning: Insights from a concurrent tDCS-fNIRS approach.

Neuroscience

June 2025

Physical Education and Sports Science (PESS) Department, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 637616 Singapore; Science of Learning in Education Centre (SoLEC), National Institute of Education, Nanyang Technological University, 1 Nanyang Walk,

Implicit Motor Sequence Learning (IMSL) is critical for automating motor skills, yet it declines with age, impacting independence and quality of life. This study investigated the age-specific roles of the primary motor cortex (M1) and supplementary motor area (SMA) in IMSL using a novel concurrent transcranial direct current stimulation (tDCS) and functional near-infrared spectroscopy (fNIRS) approach. Twenty younger adults (21-32 years old [M = 24.

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Background: Delayed diagnosis and treatment of type 2 diabetes increases diabetes-related complications, making the high prevalence of undiagnosed type 2 diabetes in Hong Kong an important concern. Point-of-care capillary HbA1c (POC-cHbA1c) testing holds promise as a comparably accurate, convenient, and timely alternative to venous HbA1c (vHbA1c) for type 2 diabetes screening, yet randomized trials are lacking. This study compared the effectiveness of a 2-step active opportunistic screening strategy using POC-cHbA1c versus usual practice employing vHbA1c and multiple clinic visits in detecting type 2 diabetes among at-risk primary care patients.

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Hyperammonemia syndrome (HS) from infection is typically reported in posttransplant recipients, particularly lung transplant. We describe a young woman with activated PI3K delta syndrome 2 who presented with HS from disseminated infection with septic arthritis. We also performed a literature review of -associated HS in nontransplant patients.

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Risk of myocardial infarction and Osteoporosis: Insights from the 2015-2018 NHANES and Mendelian randomization Studies.

Int J Cardiol Heart Vasc

December 2024

Department of Cardiovascular Surgery, Guangdong Provincial Hospital of Chinese Medicine, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, the Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong, China.

Background: There are some common pathophysiological risk factors between myocardial infarction and osteoporosis, and the exact relationship between the two is not yet clear. Our study aims to provide evidence on the relationship between myocardial infarction and osteoporosis through the analysis of data from the National Health and Nutrition Examination Survey (NHANES) and Mendelian Randomization (MR) analysis from 2015 to 2018.

Methods: A two-sample MR study using summary statistics from genome-wide association studies (GWAS) was conducted to determine the causal relationship between myocardial infarction and osteoporosis.

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Autosomal recessive deficiency of the IFNAR1 or IFNAR2 chain of the human type I IFN receptor abolishes cellular responses to IFN-α, -β, and -ω, underlies severe viral diseases, and is globally very rare, except for IFNAR1 and IFNAR2 deficiency in Western Polynesia and the Arctic, respectively. We report 11 human IFNAR1 alleles, the products of which impair but do not abolish responses to IFN-α and -ω without affecting responses to IFN-β. Ten of these alleles are rare in all populations studied, but the remaining allele (P335del) is common in Southern China (minor allele frequency ≈2%).

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The progressive loss of dopaminergic neurons in affected patient brains is one of the pathological features of Parkinson's disease, the second most common human neurodegenerative disease. Although the detailed pathogenesis accounting for dopaminergic neuron degeneration in Parkinson's disease is still unclear, the advancement of stem cell approaches has shown promise for Parkinson's disease research and therapy. The induced pluripotent stem cells have been commonly used to generate dopaminergic neurons, which has provided valuable insights to improve our understanding of Parkinson's disease pathogenesis and contributed to anti-Parkinson's disease therapies.

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Article Synopsis
  • The NOTCH2NLC gene is linked to several neurological disorders through expansions of GGC repeats in its 5' untranslated region, which can lead to conditions like Parkinson's, dementia, and tremors.
  • The study used cellular models and CRISPR-Cas9 engineered mice with specific GGC repeat variations to investigate the effects of these repeats, particularly focusing on those with serine insertions.
  • Results showed that a specific intermediate repeat with serine insertion caused mitochondrial dysfunction and neurotoxicity, leading to PD-like symptoms in mice, including neuronal loss and behavioral impairments.
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Plasmodium vivax is the most widespread of the different Plasmodium species able to infect humans and is responsible for most malaria cases outside Africa. An effective, strain-transcending vaccine that alleviates or suppresses erythrocyte invasion would be a game-changer in eliminating vivax malaria. Recently, the binding of P.

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Purpose: Secondhand smoke significantly increases the risk of cerebrovascular diseases, prompting recent public smoking bans. We aimed to ascertain the effects of smoke-free legislation on stroke incidence and mortality.

Methods: We systematically searched Medline, Embase, Cochrane Library, and Scopus up to August 13, 2023, for studies reporting changes in stroke incidence following partial or comprehensive smoking bans.

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Thermal and pH stress dictate distinct mechanisms of monoclonal antibody aggregation.

Int J Biol Macromol

December 2024

Bioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore. Electronic address:

Protein aggregation is a significant challenge in the development of monoclonal antibodies (mAbs), which can be exacerbated by stress conditions encountered along its production pipeline. In this study, we examine how thermal and pH stress conditions influence mAb aggregation mechanisms. We observe a complex interplay between these factors that significantly affects mAb stability, particularly under combined stress conditions.

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Proteomics profiling and association with cardiorenal complications in type 2 diabetes subtypes in Asian population.

Diabetes Res Clin Pract

August 2024

Clinical Research Unit, Khoo Teck Puat Hospital, Singapore; Lee Kong Chian School of Medicine, Nanyang Technology University, Singapore; Diabetes Centre, Admiralty Medical Centre, Singapore; Saw Swee Hock School of Public Heath, Singapore. Electronic address:

Aim: Among multi-ethnic Asians, type 2 diabetes (T2D) clustered in three subtypes; mild obesity-related diabetes (MOD), mild age-related diabetes with insulin insufficiency (MARD-II) and severe insulin-resistant diabetes with relative insulin insufficiency (SIRD-RII) had differential cardio-renal complication risk. We assessed the proteomic profiles to identify subtype specific biomarkers and its association with diabetes complications.

Methods: 1448 plasma proteins at baseline were measured and compared across the T2D subtypes.

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Article Synopsis
  • Multiple Omicron sub-lineages, particularly XBB and XBB.1.5, have become the global dominant variants, showcasing their ability to evade immunity despite minor genetic changes from previous variants.
  • Researchers conducted a pseudovirus neutralization test with convalescent sera from individuals who recovered from SARS-CoV infections, including various Omicron subvariants.
  • The findings showed no significant cross-neutralization among the different strains, suggesting that current SARS-related coronaviruses should be classified into three distinct serotypes.
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Purpose: To assess the association of a polygenic risk score (PRS) for functional genetic variants with the risk of developing breast cancer.

Methods: Summary data-based Mendelian randomization (SMR) and heterogeneity in dependent instruments (HEIDI) were used to identify breast cancer risk variants associated with gene expression and DNA methylation levels. A new SMR-based PRS was computed from the identified variants (functional PRS) and compared to an established 313-variant breast cancer PRS (GWAS PRS).

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Identification of new druggable protein targets remains the key challenge in the current antimalarial development efforts. Here we used mass-spectrometry-based cellular thermal shift assay (MS-CETSA) to identify potential targets of several antimalarials and drug candidates. We found that falcilysin (FLN) is a common binding partner for several drug candidates such as MK-4815, MMV000848, and MMV665806 but also interacts with quinoline drugs such as chloroquine and mefloquine.

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The role of perfusion, grey matter volume and behavioural phenotypes in the data-driven classification of cognitive syndromes.

Alzheimers Res Ther

February 2024

Dementia Research Centre (Singapore), 11 Mandalay Road, Lee Kong Chian School of Medicine, Nanyang Technology University, Singapore, 308232, Singapore.

Background: The use of structural and perfusion brain imaging in combination with behavioural information in the prediction of cognitive syndromes using a data-driven approach remains to be explored. Here, we thus examined the contribution of brain structural and perfusion imaging and behavioural features to the existing classification of cognitive syndromes using a data-driven approach.

Methods: Study participants belonged to the community-based Biomarker and Cognition Cohort Study in Singapore who underwent neuropsychological assessments, structural-functional MRI and blood biomarkers.

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TRF2 is a component of shelterin, a telomere-specific protein complex that protects the ends of mammalian chromosomes from DNA damage signaling and improper repair. TRF2 functions as a homodimer and its interaction with telomeric DNA has been studied, but its full-length DNA-binding properties are unknown. This study examines TRF2's interaction with single-DNA strands and focuses on the conformation of the TRF2-DNA complex and TRF2's preference for DNA chirality.

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Article Synopsis
  • Splenomegaly, or spleen enlargement, is commonly found in patients with malarial anemia caused by Plasmodium falciparum or P. vivax, but the reasons for this connection are not fully understood.
  • A study in Papua, Indonesia measured red blood cell (RBC) concentrations in the spleens of 37 patients, discovering that spleen size correlated positively with the amount of red-pulp and negatively with white-pulp, indicating a relationship between spleen composition and size.
  • The research revealed that retained RBCs, primarily uninfected, accounted for significant blood loss in P. falciparum infections, and this retention correlated negatively with hemoglobin levels and circulating RBC counts, highlighting the impact
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Article Synopsis
  • Infants under 6 months are at a high risk of severe COVID-19, especially due to variants like Omicron (including XBB), but there's limited data on optimal maternal vaccination timing for safeguarding them.
  • This study in Singapore examined the effects of maternal vaccination (before or during pregnancy) on the rates of SARS-CoV-2 infection in infants born between January and September 2022, focusing on those whose parents had COVID-19.
  • Out of 7292 infants studied, the majority were born to vaccinated mothers, and while a small percentage were infected, the effectiveness of vaccination timing was an important factor in the overall analysis.
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Risk of wound infection with use of sterile versus clean gloves in wound repair at the Emergency Department: A systematic review and meta-analysis.

Injury

November 2023

Department of Emergency Medicine, Singapore General Hospital, Singapore; Pre-hospital and Emergency Research Centre, Duke-NUS Medical School, Singapore; Centre for Population Health Research and Implementation, SingHealth Regional Health System, Singapore. Electronic address:

Study Objective: Sterile gloves are widely used during wound repair procedures in Emergency Departments (ED) worldwide. It is unclear whether sterile gloves protect against postoperative wound infections. We conducted a systematic review and meta-analysis to determine if sterile gloves offer significant protection against wound infections compared to clean gloves for wound repair in the ED.

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