Publications by authors named "Ng W"

: During the COVID-19 pandemic, many countries implemented lockdowns and social distancing measures, which may delay the early diagnosis of colorectal cancer (CRC). This study aims to review the impact of the pandemic on the diagnosis and treatment outcomes of CRC. : Patients who underwent colonoscopy or surgery for CRC were included.

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Background: Singapore's large aging population poses significant challenges for the health care system in managing cognitive decline, underscoring the importance of identifying and implementing effective interventions. Cognitive training delivered remotely as a digital therapeutic (DTx) may serve as a scalable and accessible approach to overcoming these challenges. While previous studies indicate the potential of cognitive training as a promising solution for managing cognitive decline, understanding the attitudes and experiences of older adults toward using such DTx platforms remains relatively unexplored.

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Fatigue is prevalent in immune-mediated inflammatory and neurodegenerative diseases, yet its assessment relies largely on patient-reported outcomes, which capture perception but not fluctuations over time. Wearable sensors, like inertial measurement units (IMUs), offer a way to monitor daily activities and evaluate functional capacity. This study investigates the relationship between sit-to-stand and stand-to-sit transitions and self-reported physical and mental fatigue in participants with Parkinson's, Huntington's, rheumatoid arthritis, systemic lupus erythematosus, primary Sjögren's syndrome and inflammatory bowel disease.

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Tertiary lymphoid structures play important roles in autoimmune and non-autoimmune conditions. While many of the molecular mechanisms involved in tertiary lymphoid structure formation have been identified, the cellular sources and temporal and spatial relationship remain unknown. Here we use combine single-cell RNA-sequencing, spatial transcriptomics and proteomics of minor salivary glands of patients with Sjogren's disease and Sicca Syndrome, with ex-vivo functional studies to construct a cellular and spatial map of key components involved in the formation and function of tertiary lymphoid structures.

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Biofilms are ubiquitous surface-associated bacterial communities embedded in an extracellular matrix. It is commonly assumed that biofilm cells are glued together by the matrix; however, how the specific biochemistry of matrix components affects the cell-matrix interactions and how these interactions vary during biofilm growth remain unclear. Here, we investigate cell-matrix interactions in Vibrio cholerae, the causative agent of cholera.

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Signaling interplay between the histamine 1 receptor (H1R) and transient receptor potential cation channel subfamily V member 1 (TRPV1) in mediating histaminergic itch has been well-established in mammalian models, but whether this is conserved in humans remains to be confirmed due to the difficulties in obtaining human sensory neurons (SNs) for experimentation. Additionally, previously reported species-specific differences in TRPV1 function indicate that use of human SNs is vital for drug candidate screening to have a higher chance of identifying clinically effective TRPV1 antagonists. In this study, we built a histamine-dependent itch model using peripheral SNs derived from human induced pluripotent stem cells (hiPSC-SNs), which provides an accessible source of human SNs for pre-clinical drug screening.

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Background: The rise of Artificial intelligence (AI) is reshaping healthcare, particularly in medical imaging. In this emerging field, clinical imaging personnel need proper training. However, formal AI education is lacking in medical curricula, coupled with a shortage of studies synthesising the availability of AI curricula tailored for clinical imaging personnel.

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In Singapore's hot and humid climate, watercolor papers are particularly prone to a paper oxidation issue known as foxing, which refers to the discoloration forming yellowish-brown stains on paper, changing the visual outcome of the watercolor artworks. This research investigates two most popular types of watercolor paper, made from 100 % cotton and cotton-wood-pulp mixture. Foxing was generally categorized into two types: biotic and abiotic foxing caused by fungi activities and the presence of metallic contaminants catalytic fungi growth.

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Background: Radiofrequency Ablation (RFA) and Microwave Ablation (MWA) are alternative treatments for colorectal liver metastasis (CRLM) patients that are unsuitable for resection. However, consensus is lacking regarding selection criteria, tumour characteristics, ablation technique delivery, and device settings. This study aims to summarise current evidence to inform future prospective studies.

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  • Bronchopulmonary dysplasia (BPD) is a respiratory issue common in preterm infants that can worsen with pulmonary hypertension (PH), and this study explores the heart's left ventricle (LV) function in these cases.
  • A study involving 80 infants under 28 weeks gestation found that those with BPD-PH had higher rates of significant heart issues, longer need for oxygen, and longer hospital stays, with distinct changes in LV function measured by tissue Doppler imaging.
  • The study indicates that diagnosing BPD-PH could benefit from monitoring LV diastolic dysfunction, revealing a potential link between the function of the right and left ventricles in affected infants.
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  • During the COVID-19 pandemic, healthcare systems were overwhelmed, and this study examined how spontaneous avoidance behaviors influenced the spread of infectious diseases through wastewater virus surveillance.
  • The researchers developed the Su-SEIQR model to analyze these behaviors alongside COVID-19 data from Beijing and Hong Kong, confirming that collective avoidance helped lower infection peaks, though its overall impact on public health was limited.
  • By incorporating healthcare capacity constraints, the model aims to advise public behaviors during outbreaks, offering valuable insights for future public health policies and the management of potential new viruses.
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Adoptive T-cell immunotherapy holds great promise for the treatment of viral complications in immunocompromised patients resistant to standard anti-viral strategies. We present a retrospective analysis of 78 patients from 19 hospitals across Australia and New Zealand, treated over the last 15 years with "off-the-shelf" allogeneic T cells directed to a combination of Epstein-Barr virus (EBV), cytomegalovirus (CMV), BK polyomavirus (BKV), John Cunningham virus (JCV) and/or adenovirus (AdV) under the Australian Therapeutic Goods Administration's Special Access Scheme. Most patients had severe post-transplant viral complications, including drug-resistant end-organ CMV disease, BKV-associated haemorrhagic cystitis and EBV-driven post-transplant lymphoproliferative disorder.

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  • * Key challenges include the immiscibility of triacylglycerols with water and the lower efficiency of enzymes relative to chemical catalysts.
  • * The review suggests that using chemical additives, particularly a combination of ionic liquids and polyols, can significantly enhance enzymatic hydrolysis efficiency, making the process more effective and less damaging to enzymes.
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  • Biofilms are communities of bacteria that attach to surfaces and are held together by a matrix, but how this matrix interacts with the cells is not fully understood.
  • The study focuses on *Vibrio cholerae*, the bacteria responsible for cholera, and reveals that the main matrix component, Vibrio polysaccharide (VPS), does not attract the cells, but a protein called Bap1 helps link the cells together.
  • As biofilms age, changes in VPS levels and a process called surface trimming lead to a shift in cell-matrix interactions from attractive to repulsive, promoting cell dispersal and potentially enriching our understanding of biofilm growth dynamics in other microorganisms.
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A woman in her 70s presented with features of hyperandrogenism including clitoral enlargement and deepening of her voice. Biochemical investigations revealed raised plasma androgens and urinary androgen metabolites and imaging findings showed a highly F-18 fluorodeoxyglucose (FDG)-PET avid left adrenal tumour initially suspected to be a malignant adrenocortical carcinoma (ACC). She subsequently underwent an uncomplicated laparoscopic adrenalectomy where complete resection of her tumour was achieved.

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Lung cancer is the leading cause of cancer-related mortality worldwide, primarily driven by genetic mutations. The most common genetic alterations implicated in lung cancer include mutations in , , , , , , , , , , , and . Targeted therapies have been developed to inhibit cancer growth by focusing on these specific genetic mutations.

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  • The study investigates the prevalence of the HLA-B*58:01 allele, which is linked to severe skin reactions from allopurinol, among gout patients in Malaysia's multiethnic population.
  • A total of 547 patients from Malay, Chinese, and Indian backgrounds were tested, revealing an overall allele prevalence of 16.8%, with the highest at 21.8% in Chinese patients.
  • Notably, despite having the HLA-B*58:01 allele, none of the patients who used allopurinol developed severe cutaneous reactions, indicating the need for a better predictive model for these reactions.
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  • The Newcastle Sjogren's Stratification Tool (NSST) categorizes Sjogren's disease patients into four subtypes, and this study examines how these subtypes change over time and the factors influencing these changes.
  • Data from 274 patients in the UKPSSR and 237 in the ASSESS cohort revealed that subtype membership is reasonably stable, with roughly 60% retaining their subtype, particularly the high-symptom burden group.
  • Factors such as baseline probability score and certain clinical characteristics, like anti-Ro status and BMI, are linked to subtype stability, suggesting that these symptom-based classifications could reflect underlying disease mechanisms and should be considered in treatment strategies.
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Homologous recombination is vital for DNA double-strand break repair. Dysfunction in homologous recombination can lead to cell death, mutations, and cancer. In fission yeast (Schizosaccharomyces pombe), RecQ helicase Rqh1 resolves recombination intermediates.

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Background: The World Health Organization (WHO) introduced the Integrated Care for Older People (ICOPE) approach to assist communities in evaluating the intrinsic capacities of older adults and proposing strategies to prevent, mitigate, or reverse declines. This study represents the inaugural attempt to assess intrinsic capacities among older adults in Singapore, aligning with the nation's Healthier Singapore (Healthier SG) initiative aimed at enhancing quality of life.

Objectives: This study aims to investigate the feasibility of implementing Step 1 screening of the ICOPE framework, which assesses cognition, locomotion, vitality, psychological state, visual and auditory functions, within the Singapore context.

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Background And Aims: Significant burnout and low professional fulfilment are noted among medical oncologists and trainees. The National Oncology Mentorship Programme (NOMP23) was designed to evaluate the impact of a 1-year mentorship program between oncology trainees (mentees) and consultants (mentors) on improving professional fulfilment and burnout.

Methods: NOMP23 was a single-arm, prospective cohort study.

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