160,859 results match your criteria: "Singapore; National University Cancer Institute of Singapore[Affiliation]"

Finite element modeling of clavicle fracture fixations: a systematic scoping review.

Med Biol Eng Comput

January 2025

Department of Orthopaedics, School of Medicine, Ruijin Hospital, Shanghai Jiao Tong University, Shanghai, China.

Finite element analysis has become indispensable for biomechanical research on clavicle fractures. This review summarized evidence regarding configurations and applications of finite element analysis in clavicle fracture fixation. Seventeen articles involving 22 clavicles were synthesized from CINAHL, Embase, IEEE Xplore, PubMed, Scopus, and Web of Science databases.

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Evaluating C-Reactive Protein and Procalcitonin Discordance Among Febrile Infants at Risk of Serious Bacterial Infections.

Acta Paediatr

January 2025

Department of Emergency Medicine, KK Women's and Children's Hospital, SingHealth-Duke NUS Paediatrics Academic Clinical Programme, Duke-NUS Medical School, Singapore.

Aim: We aimed to investigate the prevalence and factors associated with C-reactive protein (CRP) and procalcitonin (PCT) discordance in febrile infants with serious bacterial infections (SBIs).

Methods: We performed a retrospective review of febrile infants ≤ 90 days old presenting to the emergency department between December 2018 and June 2023. We compared conservative and pragmatic thresholds for PCT (< 0.

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Cognitive variation reflects amyloid, tau, and neurodegenerative biomarkers in Alzheimer's disease.

Geroscience

January 2025

Psychology, School of Social Sciences, Nanyang Technological University, 48 Nanyang Avenue S639818, Singapore, Singapore.

In Alzheimer's disease (AD), the accumulation of neuropathological markers such as amyloid-β plaques, neurofibrillary tangles, and cortical neurodegeneration occurs over many years before overt manifestation of cognitive impairment. There is thus a need for neuropsychological markers that are indicative of pathological changes in the early stages of the disease. Intra-individual cognitive variability (IICV), defined as the variation of an individual's performance across cognitive domains, is a promising neuropsychological marker measuring heterogeneous changes in cognition that may reflect these early pathological changes.

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Nanosensor for Fe(II) and Fe(III) Allowing Spatiotemporal Sensing .

Nano Lett

January 2025

Disruptive & Sustainable Technologies for Agricultural Precision IRG, Singapore-MIT Alliance of Research and Technology, 1 CREATE Way, #03-06, Singapore 138602, Singapore.

Fluorescent nanosensors operating have shown recent success toward informing basic plant biology and agricultural applications. We developed near-infrared (NIR) fluorescent nanosensors using the Corona Phase Molecular Recognition (CoPhMoRe) technique that distinguish Fe(II) and Fe(III) species with limit of detection as low as 10 nM. An anionic poly(p-phenyleneethynylene) (PPE) polyelectrolyte wrapped single-walled carbon nanotube (SWNT) shows up to 200% turn-on and 85% turn-off responses to Fe(II) and Fe(III), respectively, allowing spatial and temporal analysis of iron uptake in both foliar and root-to-shoot pathways.

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Research into novel two-dimensional (2D) materials has boomed over the past decade, with a bewildering diversity of distinct properties being discovered. In this work, layered PtSe, grown by chemical vapor deposition and thermally converted to non-layered tetragonal PtSe, is experimentally and theoretically investigated. Notably, the resultant PtSe is distinctly metallic, which highlights the significance of sub-stoichiometric phases within transition metal dichalcogenide films.

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This paper sheds light on how spaces become contested sites for identity construction and negotiation to take place. Applying the Social Representations Approach, a qualitative study of 10 focus group discussions (n = 39), was conducted in Singapore, Malaysia and the UK to explore how, and why racialised identity construction changed in each socio-political context. The study challenged two underlying assumptions in social psychology: (1) that the meaning of the racialised category holds constant across time and space, and (2) there exists a pan-racial identification among Asian identities, for example, which at times allows for racialised categories to be manipulated as variables.

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Background And Aims: An expansion of fat mass is an integral feature of patients with heart failure and preserved ejection fraction (HFpEF). While body mass index (BMI) is the most common anthropometric measure, a measure of central adiposity-the waist-to-height ratio (WHtR)-focuses on body fat content and distribution; is not distorted by bone or muscle mass, sex, or ethnicity; and may be particularly relevant in HFpEF.

Methods: The PARAGON-HF trial randomized 4796 patients with heart failure and ejection fraction ≥45% to valsartan or sacubitril/valsartan.

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Background: Acute ischemic stroke (AIS) from distal medium vessel occlusion (DMVO) presents unique treatment challenges. Mechanical thrombectomy (MT) is emerging as a viable option for these patients, yet the role of pre-stroke aspirin treatment is unclear. This study evaluates the impact of pre-stroke low-dose aspirin on outcomes in DMVO patients undergoing MT.

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Cancer is one of the leading causes of death worldwide. In recent years, immune checkpoint inhibitor therapies, in addition to standard immuno- or chemotherapy and surgical approaches, have massively improved the outcome for cancer patients. However, these therapies have their limitations and improved strategies, including access to reliable cancer vaccines, are needed.

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Introduction: To report the progress of the human living uterus transplant research project in Singapore.

Material And Methods: The uterus transplant research project began in 2012 with a collaboration between the Swedish and Singapore teams. Ethics approval was obtained from the SingHealth Centralised Institutional Review Board, the SingHealth Transplant and the Singapore General Hospital Biomedical Ethics Committee to perform 5 uterus transplant procedures in a collaborative multi-site research study at the Singapore General Hospital.

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Specialty education and scope of oral and maxillofacial surgery in the United States.

J Dent Sci

January 2025

Department of Oral and Maxillofacial Surgery, University of Pennsylvania, School of Dental Medicine, Philadelphia, PA, USA.

In the United States, Oral and Maxillofacial Surgery (OMS) is a specialty of dentistry that focuses on the management of injuries, diseases, and defects of the head, neck, face, and jaws. The present manuscript is an article on education and training of OMS residents in the United States. It a lso briefly describes the scope of practice of the specialty.

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In recent years, regulatory authorities have signaled a willingness to consider real-world evidence (RWE) data to support applications for new claims and indications for pharmaceuticals. Historically, RWE studies have been the domain of prescription drugs, driven by the fact that clinical data on patients are routinely captured in medical records, claims databases, registries, etc. However, RWE reports of nonprescription drugs and supplements are relatively sparse due to methodological gaps in this area.

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Glucose-6-phosphate dehydrogenase (G6PD) is the rate-limiting enzyme in the pentose phosphate pathway (PPP) in glycolysis. Glucose metabolism is closely implicated in the regulation of mitophagy, a selective form of autophagy for the degradation of damaged mitochondria. The PPP and its key enzymes such as G6PD possess important metabolic functions, including biosynthesis and maintenance of intracellular redox balance, while their implication in mitophagy is largely unknown.

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Ten tips in lupus nephritis management.

Clin Kidney J

January 2025

Division of Nephrology, School of Clinical Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong SAR.

Lupus nephritis is an important cause of severe glomerulonephritis, and a leading cause of kidney failure in young adults. While the disease can lead to rapid destruction of nephrons if untreated, there are effective therapies to reverse the severe acute kidney injury and prevent the lifetime risk of kidney failure. Early diagnosis and timely intervention are therefore of critical importance.

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Introduction: Recent epidemiological data suggests a rising incidence of breast angiosarcoma (AS-B) in the Western population, with over two-thirds related to irradiation or chronic lymphedema. However, unlike head and neck angiosarcoma (AS-HN), AS-B disease characteristics in Asia remain unclear.

Methods: We examined clinical patterns of angiosarcoma patients (n = 176) seen in an Asiantertiary cancer center from 1999 to 2021, and specifically investigated the molecular and immune features of AS-B in comparison to AS-HN.

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Apolipoprotein A-IV and its derived peptide, T55-121, improve glycemic control and increase energy expenditure.

Life Metab

August 2024

National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.

It is crucial to understand the glucose control within our bodies. Bariatric/metabolic surgeries, including laparoscopic sleeve gastrectomy (LSG) and Roux-en-Y gastric bypass (RYGB), provide an avenue for exploring the potential key factors involved in maintaining glucose homeostasis since these surgeries have shown promising results in improving glycemic control among patients with severe type 2 diabetes (T2D). For the first time, a markedly altered population of serum proteins in patients after LSG was discovered and analyzed through proteomics.

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Background: In patients with rotator cuff tears (RCTs), there is a lack of evidence regarding the impact of the timeliness of rotator cuff repair (RCR) surgery on treatment outcomes and overall healthcare burden. This study aimed to understand the impact of early vs. delayed RCR on real-world healthcare costs and resource use (HCRU) in Japan.

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Wrist arthroscopy presents a significant learning curve, necessitating various precautions to avoid complications like tendon laceration or nerve injury. Arthroscopic procedures become even more challenging in arthritic wrists due to altered anatomy and reduced joint space, which in turn increase the risk of complications. In this review article, we offer tips and tricks to minimize these risks.

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Introduction: Novel technologies have enabled the decentralization of many aspects of clinical trials, but little research has been done on the impact of these changes on the participant experience, trial operations, or the environment.

Methods: A fully decentralized clinical trial conducted in Singapore is used as a case study to evaluate the operational outcomes, environmental impact (via life cycle assessment), and participants experience (qualitative interviews) of the decentralized model compared to a traditional study with in-person visits.

Results: The decentralized study achieved high participant retention rates (97%) and high completion rates for clinical data, even for biological samples.

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Dual-Source Evaporation Processed Novel NaBiS Absorber Material for Eco-Friendly and Stable Photovoltaics.

Small

January 2025

State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.

Exploring and developing novel, low-cost, and environmentally friendly photovoltaic materials is a vital trend in the evolution of solar cell technology. The distinctive properties of alkali bismuth ternary sulfides have spurred increased research and application in optoelectronic devices. In this study, a novel method is reported for preparing NaBiS film by sequential thermal evaporation of NaS and BiS layers followed by heating post-treatment for the first time, as well as the preparation of solar cells with NaBiS as the light-absorbing layer.

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Transforming Adsorbate Surface Dynamics in Aqueous Electrocatalysis: Pathways to Unconstrained Performance.

Adv Mater

January 2025

School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.

Developing highly efficient catalysts to accelerate sluggish electrode reactions is critical for the deployment of sustainable aqueous electrochemical technologies, yet remains a great challenge. Rationally integrating functional components to tailor surface adsorption behaviors and adsorbate dynamics would divert reaction pathways and alleviate energy barriers, eliminating conventional thermodynamic constraints and ultimately optimizing energy flow within electrochemical systems. This approach has, therefore, garnered significant interest, presenting substantial potential for developing highly efficient catalysts that simultaneously enhance activity, selectivity, and stability.

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Harnessing from Nature - Evolving Potential of Antimicrobial Peptide.

Chembiochem

January 2025

Nanyang Technological University, School of Chemistry, Chemical Engineering & Biotechnology, 21 Nanyang Link, 637371, Singapore, SINGAPORE.

Antimicrobial peptides (AMPs) are recognized as one of the most ancient components of innate immunity, playing a pivotal role as the first line of host defense systems. These evolutionarily conserved molecules have been identified in various organisms, from prokaryotes to humans. AMPs establish a delicate balanced relationship between host and microbes, by simultaneously regulating the biological activities of pathogens and commensal microbes.

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Anion-Modulated Solvation Sheath and Electric Double Layer Enabling Lithium-Ion Storage From -60 to 80 °C.

J Am Chem Soc

January 2025

Innovative Centre for Flexible Devices (iFLEX), Max Planck-NTU Joint Laboratory for Artificial Senses, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.

Current lithium batteries experience significant performance degradation under extreme temperature conditions, both high and low. Traditional wide-temperature electrolyte designs typically addressed these challenges by manipulating the solvation sheath and selecting solvents with extreme melting/boiling points. However, these solvent-mediated solutions, while effective at one temperature extreme, invariably fail at the opposite end due to the inherent difficulties in maintaining solvent stability across wide temperatures.

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