Publications by authors named "C-H Chou"

Context: Health-related quality of life (HRQOL) is highly endorsed, but HRQOL studies scarcely investigate the following: ICU family members; modifiable end-of-life (EOL) ICU-care factors; conjoint associations with prolonged grief disorder (PGD), post-traumatic stress disorder (PTSD), and depression; and long-term bereavement outcomes.

Objectives: Exploratorily investigate associations of PGD-PTSD-depressive-symptom states (resilient, subthreshold-depression dominant, PGD dominant, and PGD-PTSD-depression comorbid) and quality of EOL ICU care with families' HRQOL 6-24 months post loss.

Methods: This cohort study examined symptoms of PGD (11 items of the PG-13), PTSD (Impact of Event Scale-Revised), and depression (Hospital Anxiety and Depression Scale), and HRQOL (Medical Outcomes Study 36-Item Short-Form Health Survey) among 303 ICU family members.

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Objectives: This cohort study aimed to determine the effect of the COVID-19 pandemic on the prevalence of metabolic syndrome (MetS) among health care workers at a dedicated COVID-19 hospital in Taiwan.

Methods: This study recruited 397 health care workers who completed health checkups before and during the COVID-19 pandemic. The differences of MetS and its components prevalence before and during the COVID-19 pandemic were compared using the paired samples t tests for normally distributed variables, and Wilcoxon signed-rank tests for nonnormally distributed variables.

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Introduction: Concerns regarding bleeding remain in cold snare polypectomy (CSP) for small pedunculated (0-Ip) polyps. The aim of this study was to compare the risk of CSP and hot snare polypectomy (HSP) for such lesions.

Methods: Data on 0-Ip colorectal polyps ≤10 mm were extracted from a large, pragmatic, randomized trial.

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Background: Timely intravenous thrombolysis and endovascular thrombectomy are the standard reperfusion treatments for large vessel occlusion stroke. Currently, it is unknown whether a low-dose thrombolytic agent (0.6 mg/kg alteplase) can offer similar efficacy to the standard dose (0.

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Context/objectives: The scarce research on factors associated with surrogate decisional regret overlooks longitudinal, heterogenous decisional-regret experiences and fractionally examines factors from the three decision-process framework stages: decision antecedents, decision-making process, and decision outcomes. This study aimed to fill these knowledge gaps by focusing on factors modifiable by high-quality end-of-life (EOL) care.

Methods: This observational study used a prior cohort of 377 family surrogates of terminal-cancer patients to examine factors associated with their membership in the four preidentified distinct decisional-regret trajectories: resilient, delayed-recovery, late-emerging, and increasing-prolonged trajectories from EOL-care decision making through the first two bereavement years by multinomial logistic regression modeling using the resilient trajectory as reference.

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Article Synopsis
  • - The study aimed to compare computed tomography (CT) with automatic rib unfolding and 3D imaging for detecting rib fractures and flail chest in 130 patients with blunt chest trauma.
  • - Five independent readers evaluated rib fractures using traditional CT, automatic rib unfolding, and 3D images, establishing a consensus for accurate diagnosis.
  • - Automatic rib unfolding reduced reading time significantly (by up to 74.9%) while providing similar diagnostic accuracy and better agreement among readers compared to conventional images.
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Biologic drug discovery pipelines are designed to deliver protein therapeutics that have exquisite functional potency and selectivity while also manifesting biophysical characteristics suitable for manufacturing, storage, and convenient administration to patients. The ability to use computational methods to predict biophysical properties from protein sequence, potentially in combination with high throughput assays, could decrease timelines and increase the success rates for therapeutic developability engineering by eliminating lengthy and expensive cycles of recombinant protein production and testing. To support development of high-quality predictive models for antibody developability, we designed a sequence-diverse panel of 83 effector functionless IgG1 antibodies displaying a range of biophysical properties, produced and formulated each protein under standard platform conditions, and collected a comprehensive package of analytical data, including in vitro assays and in vivo mouse pharmacokinetics.

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A strategy for the synthesis of dibenz[,]anthracenes (DBAs) from cyclohexa-2,5-diene-1-carboxylic acids is presented. Our approach involves sequential C-H olefination, cycloaddition, and decarboxylative aromatization. In the key step for DBA skeleton construction, the bis-C-H olefination products, 1,3-dienes, are utilized as substrates for [4 + 2] cycloaddition with benzyne.

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The emergence of COVID-19 has caused unprecedented impacts on global public health and many other aspects. Meanwhile, many types of methods have been developed to detect the causative agent, SARS-CoV-2; this has greatly advanced the technologies in the diagnostic field. Here, we describe the development and validation of a sample-in-result-out POCKIT Central SARS-CoV-2 PCR system for detecting SARS-CoV-2 in comparison with a commercial reference real-time RT-PCR assay (TaqPath COVID-19 Combo Kit).

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Probiotics may facilitate the clinical management of allergic diseases. However, their effects on allergic rhinitis (AR) remain unclear. We examined the efficacy and safety of GM-080 in a mouse model of airway hyper-responsiveness (AHR) and in children with perennial AR (PAR) by using a double-blind, prospective, randomized, placebo-controlled design.

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Context: Regret plays a central role in surrogate decision making. Research on decisional regret in family surrogates is scarce and lacks longitudinal studies to illustrate the heterogenous, dynamic evolution of decisional regret.

Objectives: To identify distinct decisional-regret trajectories from end-of-life (EOL) decision making through the first two bereavement years among surrogates of cancer patients.

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Background: Although cold snare polypectomy (CSP) is considered effective in reducing delayed postpolypectomy bleeding risk, direct evidence supporting its safety in the general population remains lacking.

Objective: To clarify whether CSP would reduce delayed bleeding risk after polypectomy compared with hot snare polypectomy (HSP) in the general population.

Design: Multicenter randomized controlled study.

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Meningitis caused by Cryptococcus tetragattii fungus is rare and has been found in specific geographic regions. We report a case of meningitis caused by C. tetragattii (molecular type VGIV) in an immunocompetent patient in Taiwan.

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N-linked glycosylation of proteins is one of the post-translational modifications (PTMs) that shield tumor antigens from immune attack. Signaling lymphocytic activation molecule family 7 (SLAMF7) suppresses cancer cell phagocytosis and is an ideal target under clinical development. PTM of SLAMF7, however, remains less understood.

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Background: Dysregulated BMP (bone morphogenetic protein) or TGF-β (transforming growth factor beta) signaling pathways are imperative in idiopathic and familial pulmonary arterial hypertension (PAH) as well as experimental pulmonary hypertension (PH) in rodent models. MED1 (mediator complex subunit 1) is a key transcriptional co-activator and KLF4 (Krüppel-like factor 4) is a master transcription factor in endothelium. However, MED1 and KLF4 epigenetic and transcriptional regulations of the BMP/TGF-β axes in pulmonary endothelium and their dysregulations leading to PAH remain elusive.

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Background And Objectives: Estrogen has the potential to influence brain physiology implicated in dementia pathogenesis. Hormone replacement therapy (HRT) might be expected to influence the risk of dementia. Observational data indicated that HRT was associated with reductions in dementia risk, but experimental evidence demonstrates that HRT increases the incidence of dementia.

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Background: The sino atrial node (SAN) is characterized by the microenvironment of pacemaker cardiomyocytes (PCs) encased with fibroblasts. An altered microenvironment leads to rhythm failure. Operable cell or tissue models are either generally lacking or difficult to handle.

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Article Synopsis
  • The study evaluates the effects of PI3Kδ inhibitor AMG319 in patients with head and neck cancer, showing that it reduces regulatory T cells while boosting the activity of tumor-fighting T cells.
  • However, the treatment resulted in significant immune-related adverse events (irAEs) in nearly half of the patients, raising concerns about systemic effects on T cells.
  • Mouse models suggest that altering dosing regimens could reduce these toxic effects while still effectively shrinking tumors, prompting further exploration of treatment strategies.
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Article Synopsis
  • * A new platform called Spike Display has been developed to quickly analyze variations in spike proteins from over 200 SARS-CoV-2 variants in terms of their functionality, including how well they bind to receptors and how they're recognized by antibodies.
  • * The study identified critical mutations in variants that affect spike protein expression and their ability to evade neutralizing antibodies, suggesting that Spike Display could enhance the development of better vaccines and therapies against SARS-CoV-2 and similar viruses.
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Article Synopsis
  • * In this study, data from over 8,400 children with KD and more than 33,800 matched non-KD children were analyzed over a 12-year period to compare the incidence rates of cerebrovascular disease.
  • * Results indicated that children with KD faced a significantly higher risk of developing cerebrovascular disease—3.19 times more likely—particularly in those under 5 years old.
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Probiotics are defined as microorganisms with beneficial health effects when consumed by humans, being applied mainly to improve allergic or intestinal diseases. Due to the increasing resistance of pathogens to antibiotics, the abuse of antibiotics becomes inefficient in the skin and in systemic infections, and probiotics may also provide the protective effect for repairing the healing of infected cutaneous wounds. Here we selected two Lactobacillus strains, GMNL-6 and GMNL-653, in heat-killed format to examine the beneficial effect in skin wound repair through the selection by promoting collagen synthesis in Hs68 fibroblast cells.

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Purpose: To validate the performance of Postnatal Growth and Retinopathy of Prematurity (G-ROP) screening criteria in a Taiwanese cohort.

Design: Screening evaluation with retrospective data.

Method: Premature infants who underwent retinopathy of prematurity (ROP) screening between January 2015 and April 2019 at a tertiary hospital were examined.

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Chronic hyperglycemia and hyperlipidemia hamper beta cell function, leading to glucolipotoxicity. Mitochondrial aldehyde dehydrogenase 2 (ALDH2) detoxifies reactive aldehydes, such as methylglyoxal (MG) and 4-hydroxynonenal (4-HNE), derived from glucose and lipids, respectively. We aimed to investigate whether ALDH2 activators ameliorated beta cell dysfunction and apoptosis induced by glucolipotoxicity, and its potential mechanisms of action.

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Purpose: The purpose of this study was to develop a preclinical compound, ITRI-E-(S)4046, a dual synergistic inhibitor of myosin light chain kinase 4 (MYLK4) and Rho-related protein kinase (ROCK), for reducing intraocular pressure (IOP).

Methods: ITRI-E-(S)4046 is an amino-pyrazole derivative with physical and chemical properties suitable for ophthalmic formulation. In vitro kinase inhibition was evaluated using the Kinase-Glo Luminescent Kinase Assays.

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Background: The performance of chest radiography-based age and sex prediction has not been well validated. We used a deep learning model to predict the age and sex of healthy adults based on chest radiographs (CXRs).

Methods: In this retrospective study, 66,643 CXRs of 47,060 healthy adults were used for model training and testing.

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