2,728 results match your criteria: "169857 Singapore ; Heart Wellness Centre[Affiliation]"

Pharmacogenomics is central to precision medicine, informing medication safety and efficacy. Pharmacogenomic diplotyping of complex genes requires full-length DNA sequences and detection of structural rearrangements. We introduce StarPhase, a tool that leverages PacBio HiFi sequence data to diplotype 21 CPIC Level A pharmacogenes and provides detailed haplotypes and supporting visualizations for , , and .

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Bacterial clustering biomaterials as anti-infective therapies.

Biomaterials

May 2025

Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, Singapore, 117559, Singapore. Electronic address:

In Nature, bacterial clustering by host-released peptides or nucleic acids is an evolutionarily conserved immune defense strategy employed to prevent adhesion of pathogenic microbes, which is prerequisite for most infections. Synthetic anti-adhesion strategies present as non-lethal means of targeting bacteria and may potentially be used to avoid resistance against antimicrobial therapies. From bacteria-agglutinating biomolecules discovered in nature to synthetic designs involving peptides, cationic polymers and nanoparticles, the modes of actions appear broad and unconsolidated.

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A modified and weighted Gower distance-based clustering analysis for mixed type data: a simulation and empirical analyses.

BMC Med Res Methodol

December 2024

Centre for Quantitative Medicine, Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore.

Background: Traditional clustering techniques are typically restricted to either continuous or categorical variables. However, most real-world clinical data are mixed type. This study aims to introduce a clustering technique specifically designed for datasets containing both continuous and categorical variables to offer better clustering compatibility, adaptability, and interpretability than other mixed type techniques.

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Background: Falls and fall-related injuries among older adults in Singapore are a serious health problem that require early intervention. In previous research, exercise interventions have been effective in improving functional outcomes and reducing falls for a broad group of older adults. However, results from multi-domain, multi-component falls prevention programs for high fall risk older adults in the community remain equivocal.

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Acute kidney injury (AKI) is a significant global health issue, which is often caused by cisplatin therapy and characterized by mitochondrial dysfunction. Restoring mitochondrial homeostasis in tubular cells could exert therapeutic effects. Here, we investigated Slc25a21, a mitochondrial carrier, as a potential target for AKI intervention.

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Background: Web-based advance care planning (ACP) interventions offer a promising solution to improve ACP engagement, but none are specifically designed to meet the needs of patients with heart failure and their caregivers.

Objective: We aimed to develop and assess the usability and acceptability of a web-based ACP decision aid called "My Voice," which is tailored for patients with heart failure and their caregivers.

Methods: This study's team and advisory board codeveloped the content for both patient and caregiver modules in "My Voice.

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We investigated mRNA vaccines encoding a membrane-anchored receptor-binding domain (RBD), each a fusion of a variant RBD, the transmembrane (TM) and cytoplasmic tail fragments of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein. In naive mice, RBD-TM mRNA vaccines against SARS-CoV-2 variants induced strong humoral responses against the target RBD. Multiplex surrogate viral neutralization (sVNT) assays revealed broad neutralizing activity against a range of variant RBDs.

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Background: Irritable bowel syndrome (IBS) is a common yet debilitating disorder of gut-brain interaction, characterized by gut-brain axis dysregulation, visceral hypersensitivity, and other comorbidities. Obesity has been hypothesized to be a risk factor linked to IBS, albeit evidence remains conflicting. Given the growing global prevalence of obesity and IBS, we performed a meta-analysis examining their purported association.

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Corneal endothelium cells (CECs) regulate corneal hydration between the leaky barrier of the corneal endothelium and the ionic pumps on the surface of CECs. As CECs do not regenerate, loss of CECs leads to poor vision and corneal blindness. Corneal transplant is the only treatment option; however, there is a severe shortage of donor corneas globally.

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In a sequential multiple-assignment randomized trial (SMART), a sequence of treatments is given to a patient over multiple stages. In each stage, randomization may be done to allocate patients to different treatment groups. Even though SMART designs are getting popular among clinical researchers, the methodologies for adaptive randomization at different stages of a SMART are few and not sophisticated enough to handle the complexity of optimal allocation of treatments at every stage of a trial.

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Chicoric acid (CA) as one of Chinese medicines had anti-inflammatory, less gastrointestinal irritation, less drug-resistance and low cost properties compared with chemical synthesized drug and biologics for rheumatoid arthritis (RA) treatment. To make CA preciously and effectly RA therapy, we firstly developed a supramolecular hydrogel (GHCAP) comprising β-cyclodextrin and graphene oxide (GO) modified hyaluronic acid (CD-HA-GO) as the "host" polymer and adamantane-modified four-arm polyethylene glycol (PEG-AD) as the "guest" polymer, and then the CA was loaded into the supramolecular hydrogel (DGHCAP). The results showed that DGHCAP exhibited injectable, high modulus, high CA loading rate (43.

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Molecular and ultrastructural characteristics of virulent and attenuated vaccine strains of goose parvovirus LIV-22.

Arch Virol

December 2024

Molecular Virology Laboratory, Martsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, First Moscow State Medical University (Sechenov University), Trubetskaya 8, 119048, Moscow, Russia.

Article Synopsis
  • The goose parvovirus (GPV) causes severe disease in young geese and ducks, leading to high mortality rates of 70-100% in naive groups, resulting in major losses for farmers.
  • A study investigated the historical virulent GPV LIV-22 strain from 1972 and a developed attenuated vaccine strain, showing both belong to the classical GPV group but exhibit unique genetic changes.
  • Microscopic analysis revealed significant cellular damage in infected geese shortly after exposure, providing insights into how GPV evolves and causes disease, which can aid future research on GPV's molecular pathogenesis.
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We investigated whether the effect of lipid-lowering drugs (LLDs) on age-related macular degeneration (AMD) differs according to the main complement genetic variants in Singapore Epidemiology of Eye Diseases (SEED) ( = 5,579) and UK Biobank studies ( = 445,727). The effect of LLD was determined for each stratum of 20 complement genetic variants. In SEED, 484 individuals developed AMD and 216 showed progression over 6 years.

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Cell confinement by micropatterning induces phenotypic changes in cancer-associated fibroblasts.

Acta Biomater

January 2025

Translational Tumor Engineering Laboratory, Department of Biomedical Engineering, National University of Singapore, Singapore 119276, Singapore; Cancer Science Institute, National University of Singapore, Singapore 117599, Singapore; The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore. Electronic address:

Article Synopsis
  • * The research explored how the shape and confinement of CAFs on specially designed surfaces influence their morphology and gene expression, finding that certain conditions led to changes toward more inflammatory and desmoplastic CAF types.
  • * The findings suggest that the way CAFs are physically arranged affects their response to cancer therapies, suggesting that understanding CAF plasticity can help develop better treatment strategies.
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Survivors of COVID-19 are susceptible to diminished health-related quality of life (HRQoL) and adverse psychological health, which may be exacerbated by their experiences of fear and the impact of the pandemic itself. This study aims to identify distinct fear and impact patterns related to the COVID-19 pandemic among survivors through latent profile analysis (LPA) and examine the associations of fear and impact patterns with post-traumatic stress symptoms (PTSS) and HRQoL. A total of 5,890 Vietnamese COVID-19 survivors completed the COVID-19 Impact Battery- Disability Scale (CIB-D), the Fear of COVID-19 Scale (FCoV-19 S), the Impact of Event Scale-Revised for PTSS, and the 36-Item Short Form Survey (SF-36) for HRQoL.

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Progress in the discovery and development of anticancer agents from marine cyanobacteria.

Nat Prod Rep

December 2024

Department of Medicinal Chemistry and Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, 1345 Center Drive, Gainesville, Florida 32610, USA.

Covering 2010-April 2024There have been tremendous new discoveries and developments since 2010 in anticancer research based on marine cyanobacteria. Marine cyanobacteria are prolific sources of anticancer natural products, including the tubulin agents dolastatins 10 and 15 which were originally isolated from a mollusk that feeds on cyanobacteria. Decades of research have culminated in the approval of six antibody-drug conjugates (ADCs) and many ongoing clinical trials.

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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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A systematic scoping review of mentoring support on professional identity formation.

BMC Med Educ

November 2024

Division of Cancer Education, National Cancer Centre Singapore, 30 Hospital Boulevard, Singapore, 168583, Singapore.

Article Synopsis
  • Mentoring is essential for professional identity formation (PIF), as it fosters personalized relationships and integrates program values, though its mechanisms remain unclear.
  • A systematic scoping review examined existing literature on mentoring support from 2000 to mid-2023, using rigorous methodology to analyze themes and categories.
  • Key findings highlight four domains vital to effective mentoring support: definitions and roles, personalisation, shepherding, and PIF, showcasing the importance of adapting mentoring approaches to meet individual mentee needs.
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Limited studies examined the interaction effects between summer heat exposure and economic development on the settlement intention, especially for the floating population. Binary logistic regression model was used to examine the association of summer temperature, per capita GRDP (PGRDP), summer temperature × PGRDP with settlement intention. Additive interaction term for summer temperature and PGRDP level was used to test the interactive effects.

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Spatiotemporal evolution and transmission dynamics of Alpha and Delta SARS-CoV-2 variants contributing to sequential outbreaks in Cambodia during 2021.

Commun Med (Lond)

November 2024

Virology Unit, World Health Organization COVID-19 Global Referral Laboratory, Institut Pasteur du Cambodge, Phnom Penh, Cambodia.

Background: Tracking the emergence, introduction and spread of SARS-CoV-2 variants of concern are essential for informing public health strategies. In 2021, Cambodia faced two major epidemic waves of SARS-CoV-2 triggered by the successive rise of the Alpha and Delta variants.

Methods: Phylodynamic analysis of 1,163 complete SARS-CoV-2 genomes from Cambodia, along with global sequences, were conducted between February and September 2021 to infer viral introductions, molecular epidemiology and population dynamics.

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Chikungunya patients may develop chronic joint pain that can persist for months to years. This study aimed to determine the factors associated with Chikungunya chronicity. This case-control study involved data from patients with laboratory-confirmed Chikungunya reported from March 2016 to December 2020 in Vitória, Espírito Santo state, Brazil.

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Article Synopsis
  • The study evaluated the validity of GLIM criteria for diagnosing malnutrition among older adults in Singapore, using various screening methods like the Mini Nutritional Assessment Short Form (MNA-SF) and ENIGMA.
  • Results indicated that GLIM malnutrition had significant associations with clinical outcomes, with single-step and two-step procedures showing similar sensitivity and specificity rates, but low agreement between different malnutrition diagnoses.
  • Overall, the study concluded that while GLIM criteria effectively identify malnutrition, the agreement between different diagnostic methods is poor, suggesting a need for standardized approaches.
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Bradykinin is an endogenously produced nonapeptide with many physiological and pathological functions that are mediated by two pharmacologically defined receptor subtypes, B1- and B2-receptors. Current studies sought to characterize the functional bradykinin (BK) receptors present in freshly isolated bovine ciliary muscle (BCM) using an organ-bath tissue contraction system. Cumulative longitudinal isometric tension responses of BCM strips (4-5 mm) were recorded before and after the addition of test compounds to BCM strips hooked up to an isometric strain gauge transducer system.

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