Publications by authors named "TY Chang"

Background: Targeting glutamine metabolism has emerged as a promising strategy in cancer therapy. However, several barriers, such as anti-tumor efficacy, drug toxicity, and safety, remain to be overcome to achieve clinical utility. Prior preclinical studies had generated encouraging data showing promises of cancer metabolism targeting drugs, although most were performed on immune-deficient murine models.

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Background And Aims: Early rhythm-control therapy in atrial fibrillation (AF) results in higher freedom from atrial arrhythmia (AA) recurrence and improved cardiovascular outcomes. The optimal timing of Cryoballoon ablation (CBA) is unknown.

Methods: We evaluated AA recurrence and procedure-related complications of early vs.

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With the cases of mechanical valves, especially double mitral and aortic valves, ablation at the left ventricle is very challenging. This case report used equipments that are readily available in the Electrophysiology laboratory, which can make the access feasible.

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Objective: Ichthyosis are complex skin diseases, characterized by hyperkeratosis with various degrees of thickening, desquamation, and erythema. The prenatal diagnosis of ichthyosis is challenged due to the clinical and genetic heterogeneity and the late-onset of fetal features on ultrasound scan. Here, we reported two fetuses with Harlequin ichthyosis (HI), a severe subtype of autosomal recessive congenital ichthyosis (ARCI), who were diagnosed prenatally by images and genetic investigations.

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The increasing popularity of medical tourism has sparked interest from policymakers, researchers, and the media. Factors influencing medical tourism include service quality, availability, economics, and cultural differences. This study aims to analyze the key factors that influence destination selection for medical tourists.

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Aging and apolipoprotein E4 () are the two most significant risk factors for late-onset Alzheimer's disease (LOAD). Compared to , disrupts cholesterol homeostasis, increases cholesteryl esters (CEs), and exacerbates neuroinflammation in brain cells, including microglia. Targeting CEs and neuroinflammation could be a novel strategy to ameliorate -dependent phenotypes.

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Deep learning analysis of electrocardiography (ECG) may predict cardiovascular outcomes. We present a novel multi-task deep learning model, the ECG-MACE, which predicts the one-year first-ever major adverse cardiovascular events (MACE) using 2,821,889 standard 12-lead ECGs, including training (n = 984,895), validation (n = 422,061), and test (n = 1,414,933) sets, from Chang Gung Memorial Hospital database in Taiwan. Data from another independent medical center (n = 113,224) was retrieved for external validation.

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Hyperbaric oxygen (HBO) therapy has emerged as a potential treatment, shown to enhance blood flow and angiogenesis. However, specific effects and mechanisms of HBO on limb ischaemia responding to a hypoxic environment remain largely unknown. We aimed to investigate the therapeutic potential of HBO in the treatment of limb ischaemia.

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Objective: Alcohol use disorder (AUD) is a complex neuropsychiatric condition influenced by genetic and environmental factors. Nerve growth factor (NGF) plays a crucial role in neuronal neuroplasticity and chronic alcohol consumption may alter NGF levels in specific brain regions. The study investigates the associations between NGF gene polymorphisms, susceptibility to AUD, and specific stress and personality characteristics.

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Background: STARR-seq and other massively-parallel reporter assays are widely used to discover functional enhancers in transfected cell models, which can be confounded by plasmid vector-induced type-I interferon immune responses and lack the multicellular environment and endogenous chromatin state of complex mammalian tissues.

Results: We describe HDI-STARR-seq, which combines STARR-seq plasmid library delivery to the liver, by hydrodynamic tail vein injection (HDI), with reporter RNA transcriptional initiation driven by a minimal Albumin promoter, which we show is essential for mouse liver STARR-seq enhancer activity assayed 7 days after HDI. Importantly, little or no vector-induced innate type-I interferon responses were observed.

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Background: Undetected atrial fibrillation (AF) poses a significant risk of stroke and cardiovascular mortality. However, diagnosing AF in real-time can be challenging as the arrhythmia is often not captured instantly. To address this issue, a deep-learning model was developed to diagnose AF even during periods of arrhythmia-free windows.

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Background/objectives: Although high-fat, low-carbohydrate diets are used for weight loss and type 2 diabetes management, their high-fat content may have negative effects. This study examines the effects of replacing cellulose with chitosan and part of the fat with fish oil in a high-fat, low-carbohydrate diet on lipid metabolism in rats.

Methods: The experiment involved 35 six-week-old male SD rats, divided into five groups: normal control diet (ND), high-fat diet (HF), high-fat, low-carbohydrate diet (LC), LC with 5% chitosan (LC-CH), and LC with 5% chitosan and 5% fish oil (LC-CHF).

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In previous work, we found that short sleep caused sensitivity to oxidative stress; here we set out to characterize the physiological state of a diverse group of chronically short-sleeping mutants during hyperoxia as an acute oxidative stress. Using RNA-sequencing analysis, we found that short-sleeping mutants had a normal transcriptional oxidative stress response relative to controls. In both short-sleeping mutants and controls, hyperoxia led to downregulation of glycolytic genes and upregulation of genes involved in fatty acid metabolism, reminiscent of metabolic shifts during sleep.

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Background: Previous research has demonstrated that atrial fibrillation (AF) ablation improves heart function variably among patients. We proposed that the ANTWERP score, which was validated in a European group of patients with low left ventricular ejection fraction (LVEF) who had AF ablation, would be valid in an Asian group as well. The purpose of the study is to examine how well a new scoring system (the ANTWERP score) can predict heart function improvement after atrial fibrillation ablation in Asian patients with heart failure.

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Background: Predicting premature ventricular contraction (PVC) origin pre-ablation is a fundamental step, as right ventricular outflow tract (RVOT) PVC often leads to higher success rates.

Objective: To compare nine published ECG criteria to differentiate between RVOT and non-RVOT origins of PVCs and develop a stepwise algorithm using those criteria to better determine PVC origin to predict ablation success.

Methods: Two centers were involved in this study, the derivation group and the validation group.

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Article Synopsis
  • The study investigates the effectiveness of the modified Hospital Frailty Risk Score (mHFRS) in identifying frail hospitalized older adults, comparing it with the original Hospital Frailty Risk Score (HFRS) and the Clinical Frailty Scale (CFS).
  • A review of 3,042 patients over 65 years old was conducted, revealing that the CFS identified 46.3% as frail, with frail patients generally being older, more likely female, and having longer hospital stays and higher mortality rates.
  • The mHFRS showed a significant correlation with both CFS and HFRS, proving to be effective in classifying patients, especially identifying non-frail individuals, and suggesting it as a
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  • Chronic Obstructive Pulmonary Disease (COPD) poses a major public health issue, with eosinophilic inflammation playing a key role in its progression and flare-ups.
  • This review focuses on how eosinophils contribute to airway changes and the inflammatory processes in COPD, highlighting the potential for targeted therapies.
  • The findings suggest that targeting eosinophils could lead to better treatment strategies, emphasizing the need for ongoing research to utilize eosinophil biomarkers in managing COPD.
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The fall armyworm (FAW), , is a major polyphagous pest that mainly feeds on maize and other cash crops. Understanding 's behavior on different host plants facilitates the development of effective integrated pest management (IPM) plans. Therefore, this study investigated the oviposition preferences of females among different host plants using no-choice, two-choice, and multiple-choice bioassays.

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This study introduced a novel antiviral approach by combining three substances with different antiviral mechanisms: N-(2-hydroxy)propyl-3-trimethylammoniumchitosan (HTC), silver nanoparticles (AgNPs), and oseltamivir. First, positively surface-charged AgNPs were prepared using an environmentally friendly method. The surfaces of these AgNPs were capped with cationic quaternary chitosan HTC.

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Inflammatory bowel disease (IBD) has the potential to induce neuroinflammation, which may increase the risk of developing neurodegenerative disorders. Ultrasound stimulation to the abdomen is a potential treatment for dextran sulfate sodium (DSS)-induced acute colitis. The present study aimed to investigate whether abdominal low-intensity pulsed ultrasound (LIPUS) can alleviate DSS-induced neuroinflammation through the microbiota-gut-brain axis.

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Article Synopsis
  • Aging and the presence of the APOE4 gene are major risk factors for late-onset Alzheimer's disease (LOAD), leading to increased neuroinflammation and cholesterol imbalances in brain cells.
  • The study highlights that inhibiting the cholesterol storage enzyme ACAT1 can reduce harmful cholesteryl esters and inflammation by modulating TLR4 levels in microglia, which are immune cells in the brain.
  • Treatment with a nanoparticle-formulated ACAT inhibitor, F12511, shows promise in decreasing inflammatory markers and TLR4 protein levels in the brains of aged APOE4 mice, suggesting it may be a potential therapeutic strategy for LOAD.
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  • Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a rare condition that seems to have a higher occurrence in patients undergoing peritoneal dialysis (PD), as noted in previous case reports.
  • A case-control study analyzed data from patients with end-stage kidney disease (ESKD) to evaluate potential associations between CIDP and various factors including dialysis type, age, and blood levels.
  • Findings indicate that PD may significantly increase the risk of CIDP in ESKD patients, prompting consideration of underlying mechanisms related to inflammation from dialysis, though further research is necessary.
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Aging is the major risk factor for Alzheimer's disease (AD). In the aged brain, myelin debris accumulates and is cleared by microglia. Phagocytosed myelin debris increases neutral lipid droplet content in microglia.

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The elevated level of replication stress is an intrinsic characteristic of cancer cells. Targeting the mechanisms that maintain genome stability to further increase replication stress and thus induce severe genome instability has become a promising approach for cancer treatment. Here, we identify histone deacetylase 8 (HDAC8) as a drug target whose inactivation synergized with the inhibition of checkpoint kinases to elicit substantial replication stress and compromise genome integrity selectively in cancer cells.

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  • A study found that a specific peptide from the SARS-CoV-2 spike protein (S(1144-1156)) can broadly neutralize multiple COVID-19 variants, including Delta and Omicron.
  • Mice vaccinated with this peptide produced high levels of specific antibodies and immune responses, indicating its potential as a vaccine candidate.
  • Enhanced neutralizing antibody responses were also seen with slightly modified peptides (S(1143-1157) and S(1142-1158)), suggesting improvements in vaccine design for COVID-19.
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