20,751 results match your criteria: "Yong Loo Lin School of Medicine[Affiliation]"

Background: Pathological Q waves at presentation in ST segment elevation myocardial infarction (STEMI) have been associated with poorer clinical outcomes including heart failure. This observational study highlights the prognostic value of pathological Q waves at presentation in the Southeast Asian population.

Methods: Multiethnic Asian patients presenting with STEMI and treated with primary coronary intervention were recruited from 2015 to 2019.

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Hypertrophic cardiomyopathy (HCM) and arrhythmogenic right ventricular cardiomyopathy (ARVC) are phenotypically distinct inherited cardiac diseases. This case report presents a woman aged 51 years with coinheritance of pathogenic/likely pathogenic variants of the β-myosin heavy chain ( p.Glu924Lys) and plakophilin 2 ( p.

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Regeneration of oral soft tissue defects, including mucogingival defects associated with the recession or loss of gingival and/or mucosal tissues around teeth and implants, is crucial for restoring oral tissue form, function, and health. This study presents a novel approach using three-dimensional (3D) bioprinting to fabricate individualized grafts with precise size, shape, and layer-by-layer cellular organization. A multicomponent polysaccharide/fibrinogen-based bioink is developed, and bioprinting parameters are optimized to create shape-controlled oral soft tissue (gingival) constructs.

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A qualitative study on burnout and coping in palliative nurses.

Int J Palliat Nurs

December 2024

Centre for Biomedical Ethics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.

Background: With burnout rates highly prevalent in palliative care nurses, it is important to have a holistic understanding of the causes of burnout and strategies both to prevent burnout and to cope with burnout.

Aim: To understand the causes of burnout and strategies used to prevent and cope with burnout in palliative care nurses. This would allow the implementation of strategies on a personal level and organisational level to mitigate the effects of burnout.

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Sdd3 regulates the biofilm formation of via the Rho1-PKC-MAPK pathway.

mBio

December 2024

A*STAR Infectious Diseases Labs (A*STAR ID Labs), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.

, the most frequently isolated fungal pathogen in humans, forms biofilms that enhance resistance to antifungal drugs and host immunity, leading to frequent treatment failure. Understanding the molecular mechanisms governing biofilm formation is crucial for developing anti-biofilm therapies. In this study, we conducted a genetic screen to identify novel genes that regulate biofilm formation in .

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Diabetes mellitus is a prevalent metabolic disorder worldwide. A variety of antidiabetic medications have been developed to help manage blood glucose levels in diabetic patients, but adverse reactions and efficacy loss over time have spurred research into new therapeutic agents. In view of this, investigations into the antidiabetic effect of herbal products have been encouraged due to their potential availability, inexpensiveness, and relatively minimal side effects.

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Cascade-Activatable Nanoprodrug System Augments Sonochemotherapy of Bladder Cancer.

ACS Nano

December 2024

NHC Key Laboratory of Molecular Probe and Targeted Theranostics, Heilongjiang Key Laboratory of Scientific Research in Urology, Harbin Medical University, Harbin 150001, China.

Sonochemotherapy (SCT) has emerged as a powerful modality for cancer treatment by triggering excessive production of reactive oxygen species (ROS) and controlled release of chemotherapeutic agents under ultrasound. However, achieving spatiotemporally controlled release of chemotherapeutic agents during ROS generation is still an enormous challenge. In this work, we developed a cascade-activated nanoprodrug () system that utilizes a reversible covalent Schiff base mixed with a hypoxia-activatable camptothecin (CPT) prodrug.

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Commentary on hypertension self-management in postoperative aortic dissection patients in China.

Eur J Cardiovasc Nurs

December 2024

Alice Lee Centre for Nursing Studies & Cardiovascular-Metabolic Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Block MD11, Level 1, Clinical Research Centre, 10 Medical Drive, Singapore 117597, Singapore.

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Deriving Accurate Nocturnal Heart Rate, rMSSD and Frequency HRV from the Oura Ring.

Sensors (Basel)

November 2024

Centre for Sleep and Cognition, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore 117549, Singapore.

Cardiovascular diseases are a major cause of mortality worldwide. Long-term monitoring of nighttime heart rate (HR) and heart rate variability (HRV) may be useful in identifying latent cardiovascular risk. The Oura Ring has shown excellent correlation only with ECG-derived HR, but not HRV.

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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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Article Synopsis
  • Distal sensorimotor polyneuropathy (DSPN) is a prevalent neurological condition affecting older adults and those with obesity or diabetes, leading to significant health issues.
  • The Interpretable Multimodal Machine Learning (IMML) framework was used to predict the prevalence and incidence of DSPN by analyzing a diverse set of data from over 1,000 participants, including clinical, genomic, and metabolomic information.
  • Results showed that while clinical data alone could differentiate DSPN cases, combining it with additional molecular data improved prediction accuracy and identified potential biomarkers related to inflammation and fatty acid metabolism, offering new insights for treatment and prevention strategies.
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Polygenic risk scores (PRSs) have recently been used to inform reproductive decision-making in the context of embryonic screening. While this is yet to be widespread, it is contested and raises several challenges. This article provides an overview of some of the ethical considerations that arise with using PRSs for embryo screening and offers a series of regulatory considerations for jurisdictions that may wish to permit this in the future.

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Burnout among medical residents: key drivers and practical mitigating strategies.

Postgrad Med J

December 2024

Yong Loo Lin School of Medicine, National University of Singapore, 21 Lower Kent Ridge Rd, Singapore 119077, Singapore.

Burnout is a prevalent phenomenon in medicine, affecting >50% of physicians and up to 60% of medical residents. This has negative consequences for both doctors' mental health and job satisfaction as well as patient care quality. While numerous studies have explored the causes, psychological effects, and workplace solutions, we aim to practicalize the issue from the perspectives of residents by discussing three key drivers of burnout and offering actionable, multipronged strategies that may be able to tackle these root causes effectively.

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Background: Superficial cutaneous fungal infections are common dermatologic conditions. A significant proportion do not present with typical clinical findings. However, the 10% potassium hydroxide (KOH) smear, a simple bedside test, is often underused when diagnosing cutaneous fungal infections.

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Glucocorticoid replacement therapy after retroperitoneal laparoscopic unilateral adrenal adenoma resection in patients with non-cortisol secreting tumors: a retrospective cohort study.

Gland Surg

November 2024

Department of Urology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Tongji Shanxi Hospital, Taiyuan, China.

Background: Adrenal Cushing's syndrome is caused by an adrenal tumor that produces hypercortisolism and requires glucocorticoid supplementation following resection of the tumour to prevent adrenal insufficiency. Few studies have examined whether glucocorticoid replacement (GR) therapy is required after retroperitoneal laparoscopic unilateral adrenal adenoma resection in patients with non-cortisol secreting tumors, or whether there is any correlation between preoperative biochemical indicators and postoperative cortisol function. This study sought to investigate which patients with non-cortisol secreting tumors required GR therapy after undergoing retroperitoneal laparoscopic resection of unilateral adrenal cortical adenoma.

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Cognitive impairment is a central characteristic of schizophrenia. Executive functioning (EF) impairments are often seen in mental disorders, particularly schizophrenia, where they relate to adverse outcomes. As a heterogeneous construct, how specifically each dimension of EF to characterize the diagnostic and prognostic aspects of schizophrenia remains opaque.

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We aim to evaluate stone-free rate (SFR) and complications after flexible ureteroscopy (F-URS) for kidney stones, using a flexible and navigable suction ureteral access sheath (FANS), comparing thulium fiber laser (TFL) and high-power holmium:yttrium-aluminum-garnet laser (HPHL). Data from adults who underwent F-URS in 15 centers were prospectively analyzed (August 2023-January 2024). Exclusion criteria were ureteral stones, concomitant bilateral procedures, and renal abnormalities.

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Sleep is vital for maintaining physical and mental well-being, impacting cognitive functions like memory and learning through neuroplasticity. Sleep disturbances prevalent in neurological and psychiatric disorders exacerbate cognitive decline, imposing societal burdens. Exploring the relationship between sleep and neuroplasticity elucidates the mechanisms influencing cognition, particularly amidst the prevalent sleep disturbances in these clinical populations.

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Background: Cholecystectomy (CCE) can affect the enterohepatic circulation of bile acids and result in gut microbiome changes. This systematic review aimed to clarify the effect of CCE on gut microbiome composition and its clinical impact.

Method: A systematic search was conducted in PubMed, Web of Science, and Scopus, combining keywords such as "cholecystectomy" or "post-cholecystectomy" with "gut microbiome," "stool microbiome," or "gut dysbiosis.

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TMP: A dual modulator of apoptosis and autophagy via SHP-1 regulation in hepatocellular carcinoma.

Life Sci

January 2025

Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdae-mun-gu, Seoul 02447, Republic of Korea. Electronic address:

Background: Hepatocellular carcinoma (HCC) poses a significant health burden due to its high incidence, and current treatment effectiveness is hindered by drug resistance. Thus, investigation of novel therapeutic approaches derived from natural sources is crucial for improving patient outcomes.

Aims: This study aimed to explore the potential of Tetramethylpyrazine (TMP), bioactive alkaloid (ligustrazine) isolated from Chuanxiong (Ligusticum Wallichii), in targeting HCC by inducing apoptosis and enhancing autophagy.

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Characterizing Nodal Gamma-Delta T-Cell Lymphoma: Clinicopathological and Molecular Insights.

Mod Pathol

December 2024

Department of Pathology, National University Hospital, National University Health System, Singapore, Singapore; Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore. Electronic address:

Peripheral T-cell lymphomas with gamma-delta phenotype (GDTCL) are rare lymphoid malignancies. Beyond the well-recognized entities of extranodal lymphomas with gamma-delta phenotype as defined by the fifth edition of the World Health Organization Classification of Hematolymphoid Tumors and 2022 International Consensus Classification, there is a group of poorly defined gamma-delta T-cell lymphomas with predominantly nodal presentation, termed as nodal GDTCL (nGDTCL). In this study, we present a series of 12 cases of Epstein-Barr virus-negative nGDTCL, highlighting the clinical, histopathological, and molecular features of this rare entity.

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Neighborhood Social Determinants of Health are Associated With Metabolic Dysfunction-associated steatotic Liver Disease Outcomes.

Clin Gastroenterol Hepatol

December 2024

Division of Gastroenterology and Hepatology, Department of Internal Medicine, Banner University Medical Center, Phoenix, Arizona; Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Arizona College of Medicine, Phoenix, Arizona. Electronic address:

Background & Aims: Significant health disparities exist in metabolic dysfunction-associated steatotic liver disease (MASLD), driven by social determinants of health (SDOH). Few studies have explored neighborhood-level SDOH in MASLD.

Methods: This is a retrospective cohort study of patients with MASLD at a multi-state healthcare institution.

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Collective sperm movement in mammalian reproductive tracts.

Semin Cell Dev Biol

February 2025

Division of Reproductive Biology, Institute of Resource Development and Analysis, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan; Priority Organization for Innovation and Excellence, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan.

Mammalian sperm cells travel from their origin in the male reproductive tract to fertilization in the female tract through a complex process driven by coordinated mechanical and biochemical mechanisms. Recent experimental and theoretical advances have illuminated the collective behaviors of sperm both in vivo and in vitro. However, our understanding of the underlying mechano-chemical processes remains incomplete.

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Proliferative Vitreoretinopathy (PVR) is a major complication of surgical repair for Rhegmatogenous Retinal Detachment (RRD). Methotrexate (MTX), a folate antimetabolite, has shown promise in targeting the pathological processes involved in PVR, such as cell proliferation inhibition, fibrosis and anti-inflammation. Systematic review examines the use of MTX in PVR by analysing different administration methods and outcomes.

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