85,370 results match your criteria: "National University of Singapore; National University Cancer Institute[Affiliation]"

Background: The field of digital health solutions (DHS) has grown tremendously over the past years. DHS include tools for self-management, which support individuals to take charge of their own health. The usability of DHS, as experienced by patients, is pivotal to adoption.

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Article Synopsis
  • The study examines the relationship between skin oxylipins, which are bioactive lipids produced from fatty acids by skin microbes, and different microbial communities on the skin of children and adults.
  • Findings highlighted that Malassezia restricta, a type of skin fungus, has a positive impact on the production of a specific oxylipin (9,10-DiHOME) in adults, while showing a negative correlation with its precursor in children, indicating differences in skin chemistry across age groups.
  • The research suggests a complex communication system between skin microbes and host lipid metabolism that could have implications for skin health, emphasizing the need for further exploration of these interactions for potential therapeutic applications.
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Cheek swabs, heterogeneous samples consisting primarily of buccal epithelial cells, are widely used in pediatric DNA methylation studies and biomarker creation. However, the decrease in buccal proportion with age in adults remains unexamined in childhood. We analyzed cheek swabs from 4626 typically developing children 2-months to 20-years-old.

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Background: Radiotherapy is the primary treatment modality for most head and neck cancers (HNCs). Despite the addition of chemotherapy to radiotherapy to enhance its tumoricidal effects, almost a third of HNC patients suffer from locoregional relapses. Salvage therapy options for such recurrences are limited and often suboptimal, partly owing to divergent tumor and microenvironmental factors underpinning radioresistance.

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Mitophagy that disrupt mitochondrial membrane potential (MMP), represents a critical focus in pharmacology. However, the discovery and evaluation of MMP-disrupting drugs are often hampered using commercially available marker molecules that target similar or identical zones. These markers can significantly interfere with, obscure, or amplify the functional effects of MMP-targeting drugs, frequently leading to clinical failures.

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There has been much controversy regarding the order in which cytoreductive nephrectomy (CN) and systemic therapy (ST) are applied for patients with metastatic renal cell carcinoma (mRCC). We aimed to investigate the role of deferred CN (dCN) in mRCC, particularly in the current era of immunotherapy. A systematic literature search was conducted on PubMed, Embase, and Scopus for studies comparing dCN versus any non-dCN strategy, in any temporal sequence, with the provision of Kaplan-Meier curves for overall survival (OS).

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Advocacy in Action: International Patient Group Improves Hereditary Angioedema Diagnosis and Care Across the Asia-Pacific.

Clin Exp Allergy

January 2025

Division of Rheumatology and Clinical Immunology, Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China.

This study demonstrates that patient advocacy groups significantly enhance medication availability and improve diagnosis of hereditary angioedema (HAE), particularly in emerging economies within the Asia-Pacific region. This study supports integrating patient advocacy group involvement into management guidelines, emphasising their role in improving access to diagnostics and treatment for HAE.

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FAP-targeted radioligand therapy with Ga/Lu-DOTA-2P(FAPI) enhance immunogenicity and synergize with PD-L1 inhibitors for improved antitumor efficacy.

J Immunother Cancer

January 2025

Department of Nuclear Medicine and Minnan PET Center, Xiamen Cancer Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China

Background: Fibroblast activation protein (FAP)-targeted radioligand therapy, with immunomodulatory effects, has shown efficacy in both preclinical and clinical studies. We recently reported on a novel dimeric FAP-targeting radiopharmaceutical, Ga/Lu-DOTA-2P(FAPI), which demonstrated increased tumor uptake and prolonged retention in various cancers. However, further exploration is required to understand the therapeutic efficacy and underlying mechanisms of combining Ga/Lu-DOTA-2P(FAPI) radioligand therapy with PD-1/PD-L1 immunotherapy.

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Is abundance of B cells the best biomarker to predict immune checkpoint inhibitor response in head and neck squamous cell cancers?

Ann Oncol

January 2025

National University Cancer Institute Singapore; Cancer Science Institute Singapore, National University of Singapore; Department of Pharmacology, Department of Medicine, National University Singapore. Electronic address:

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The peri-operative management of non-small cell lung cancer (NSCLC) in earlier stage disease has seen significant advances in recent years with the incorporation of immune checkpoint inhibitors and targeted therapy. However, many unanswered questions and challenges remain, including the application of clinical trial data to routine clinical practice. Recognising the unique demographic profile of Asian patients with NSCLC and heterogeneous healthcare systems, the Asian Thoracic Oncology Research Group (ATORG) convened a consensus meeting in Singapore on 26 April 2024 to discuss relevant issues spanning diagnostic testing to post-neoadjuvant treatment considerations and future directions.

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The spin angular momentum (SAM) plays a significant role in light-matter interactions. It is well known that light carrying SAM can exert optical torques on micro-objects and drive rotations, but 3D rotation around an arbitrary axis remains challenging. Here, we demonstrate full control of the 3D optical torque acting on a trapped microparticle by tailoring the vectorial SAM transfer.

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Kaolinite is a single 2D layer of kaolin or metakaolin (MK), common clays that can be characterized as layered 3D materials. We show that because of its chemical composition, kaolinite can be converted into an amorphous 3D material by chemical means. This dimensional transformation is possible due to the large surface to volume ratio and chemical reactivity of kaolinite.

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Article Synopsis
  • Depression treatment effectiveness differs greatly among individuals, highlighting the need for objective biomarkers that can accurately predict therapy outcomes to improve treatment efficiency.
  • This study used functional near-infrared spectroscopy (fNIRS) combined with clinical assessments to explore whether machine learning techniques could forecast treatment responses in patients with major depressive disorder (MDD).
  • Findings revealed that changes in total hemoglobin levels in a specific brain region (dlPFC) correlated significantly with treatment response, and the fNIRS-only model demonstrated better predictive accuracy compared to a model that also included clinical data.
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Maternal obesity alters histone modifications mediated by the interaction between Ezh2 and Ampk, impairing neural differentiation in the developing embryonic brain cortex.

J Biol Chem

January 2025

Department of Biochemistry, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE; Zayed Center for Health Sciences, United Arab Emirates University, Al Ain, Abu Dhabi, UAE; ASPIRE Precision Medicine Research Institute Abu Dhabi (PMRI-AD), United Arab Emirates University, Al Ain, UAE. Electronic address:

Neurodevelopmental disorders have complex origins that manifest early during embryonic growth and are associated with intricate gene regulation dynamics. A perturbed metabolic environment such as hyperglycemia or dyslipidemia, particularly due to maternal obesity, poses a threat to the optimal development of the embryonic central nervous system. Accumulating evidence suggests that these metabolic irregularities during pregnancy may alter neurogenesis pathways, thereby predisposing the developing fetus to neurodevelopmental disorders.

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One-Pot lignin bioconversion to polyhydroxyalkanoates based on hierarchical utilization of heterogeneous compounds.

Bioresour Technol

January 2025

Department of Chemical and Biomolecular Engineering, National University of Singapore, S117585, Singapore; Energy and Environmental Sustainability Solutions for Megacities (E2S2) Phase II, Campus for Research Excellence and Technological Enterprise (CREATE), S138602, Singapore. Electronic address:

Pseudomonas putida degraded 35 % of compounds in alkali-pretreated lignin liquor under nitrogen-replete conditions but with low polyhydroxyalkanoates (PHA) production, while limiting nitrogen supplement improved PHA content (PHA/dry cell weight) to 43 % at the expense of decreased lignin degradation of 22 %. Increase of initial cell biomass (0.1-1.

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Targeted Cx43 therapeutics reduce NLRP3 inflammasome activation in rat burn injury.

Burns

December 2024

Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Clinical Sciences Building, 11, Mandalay Road, 308232, Singapore; Skin Research Institute Singapore, Level 17, Clinical Sciences Building, 11, Mandalay Road, 308232,  Singapore; National Skin Centre Singapore, 1 Mandalay Rd, 308205, Singapore. Electronic address:

Burns are dynamic injuries characterized by an initial zone of necrosis that progresses to compromise surrounding tissue. Acute inflammation and cell death are two main factors contributing to burn progression. These processes are modulated by Connexin43 (Cx43) hemichannels and gap junctions in burns and chronic wounds.

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Bioelectronic and photogenerated electron synergistic catalyzed removal of chlorhexidine: Degradation and mechanism.

J Hazard Mater

January 2025

College of Water Sciences, Beijing Normal University, Beijing 100875, China; Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087,  China; National University of Singapore, Department of Civil and Environmental Engineering, 1 Engineering Drive 2, 117576, Singapore. Electronic address:

The extensive use of the antimicrobial compound chlorhexidine (CHD) has emerged as a significant threat to both the ecological environment and human health. To address this concern, a photo-electrochemical cell-microbial fuel cell (PMFC) system was studied for CHD removal by incorporating, for the first time, the photocatalysts black phosphorus/carbon nitride (BPCN) and CuO into the bioanode and air cathode of an MFC, respectively. By combining electrochemical, macro-genomic, and intermediate product analyses, the underlying mechanisms of bioelectronic and photoelectronic synergies were elucidated.

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Objectives: To examine the predictors of parent-child bonding and parenting satisfaction using structural equation models at three time points across the perinatal period: (1) during pregnancy at >24 gestational weeks, (2) one month postpartum, and (3) three months postpartum.

Methods: This longitudinal exploratory quantitative study recruited a convenient sample of 118 heterosexual couples (236 participants; 118 mothers and 118 fathers) from maternity clinics of a public tertiary hospital in Singapore. Descriptive statistics were used to summarize the parents' characteristics and study variables.

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Oncological outcomes following extreme oncoplastic breast conserving surgery (eOPBCS) for locally advanced breast cancer (LABC): A systematic review and meta-analysis.

Breast

December 2024

Yong Yoo Lin School of Medicine, National University of Singapore, Singapore; Department of General Surgery, Breast Division, National University Health System, Singapore; Saw Swee Hock School of Public Health, National University of Singapore, Singapore; National University Cancer Institute of Singapore, Singapore. Electronic address:

Introduction: Locally advanced breast cancer (LABC) accounts for 5 % of new breast cancer diagnoses in developed countries and 30-60 % in developing regions. Historically, treatment relied on mastectomy guided by the Halstedian theory. Advances in neoadjuvant chemotherapy (NACT), breast-conserving surgery (BCS), and radiation have transformed treatment into a multimodal approach.

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Radical covalent organic frameworks (RCOFs) have demonstrated significant potential in redox catalysis and energy conversion applications. However, the synthesis of stable RCOFs with well-defined neutral carbon radical centers is challenging due to the inherent radical instability, limited synthetic methods and characterization difficulties. Building upon the understanding of stable carbon radicals and structural modulations for preparing crystalline COFs, herein we report the synthesis of a crystalline carbon-centered RCOF through a facile post-oxidation process.

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Transition-metal dichalcogenides (TMDs), such as molybdenum disulfide (MoS), have emerged as a generation of nonprecious catalysts for the hydrogen evolution reaction (HER), largely due to their theoretical hydrogen adsorption energy close to that of platinum. However, efforts to activate the basal planes of TMDs have primarily centered around strategies such as introducing numerous atomic vacancies, creating vacancy-heteroatom complexes, or applying significant strain, especially for acidic media. These approaches, while potentially effective, present substantial challenges in practical large-scale deployment.

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Palladium Nanosheet Enables Synergistic Electrocatalytic Dehalogenation via Direct and Indirect Electron Transfer Mechanisms.

ACS Appl Mater Interfaces

January 2025

Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.

Electrocatalytic dehalogenation is a promising method for the remediation of chlorinated organic pollutants. The dehalogenation performance is controlled by catalytic activity, and the underlying electrocatalytic dehalogenation mechanisms need to be carefully investigated for guiding the design of catalyst. Here we report the preparation of a new Pd-based catalyst with a nanosheet structure (Pd NS) by a simple wet-chemical reduction method.

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Patients with hard-to-heal wounds: a review and synthesis of their experiences and perceptions of maggot debridement.

J Wound Care

January 2025

Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Clinical Research Centre, Singapore.

Objective: There is little use of maggot debridement therapy (MDT) worldwide, albeit there is much literature supporting its benefits and effectiveness for hard-to-heal (chronic) wounds. Hard-to-heal wounds are becoming ever more prevalent and MDT can play a pivotal role in wound care management. This underuse can be associated with patients' perceptions and experiences of MDT.

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Ultra-broadband photodetectors (UB-PDs) are essential in medical applications, public safety monitoring, and various other fields. However, developing UB-PDs covering multiple bands from ultraviolet to medium infrared remains a challenge due to material limitations. Here, a mixed-dimensional heterojunction composed of 2D WS/monodisperse hexagonal stacking (MHS) 3D PdTe particles on 3D Si is proposed, capable of detecting light from 365 to 9600 nm.

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