Publications by authors named "IChun Chen"

The efficacy of immunotherapy for estrogen receptor-positive/HER2-negative (ER+/HER2-) metastatic breast cancer (MBC) has not been proven. We conduct a phase 1b/2 trial to assess the efficacy of combining pembrolizumab (anti-PD1 antibody), exemestane (nonsteroidal aromatase inhibitor), and leuprolide (gonadotropin-releasing hormone agonist) for 15 patients with premenopausal ER+/HER2- MBC who had failed one to two lines of hormone therapy (HT) without chemotherapy. The primary endpoint of progression-free survival rate at 8 months (i.

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Dravet syndrome (DS) is a genetic disorder caused by a deficit in the Nav1.1 channel, leading to drug-resistant epilepsy. The Nav1.

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Blue energy, a clean energy source derived from salinity gradients, has recently drawn increased research attention. It can be harvested using charged membranes, typically composed of amorphous materials that suffer from low power density due to their disordered structure and low charge density. Crystalline materials, with inherently ordered porous structures, offer a promising alternative for overcoming these limitations.

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Background/objectives: Marine turtles are globally threatened and face daily anthropogenic threats, including pollution. Water pollution from emerging contaminants such as antimicrobials is a major and current environmental concern.

Methods: This study investigated the phenotypic antimicrobial resistance and heavy metal resistance genes of 47 isolates from different stages of sea turtles (oceanic stage vs neritic stage) from the Taiwanese coast.

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Article Synopsis
  • A multi-method approach is essential for accurately diagnosing ADHD in preschool children, given the complexities involved at this developmental stage; however, most existing AI studies have used only one type of data.
  • This study recruited 78 preschoolers, including those with ADHD and typical development, to create a combined AI model using data from EEG, a computerized attention test, and ADHD symptom scales, achieving a high accuracy of 0.974.
  • The findings highlight the importance of integrating diverse data sources and suggest significant features like teacher ratings and specific EEG measurements can enhance the identification of ADHD in young children.
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Background: Gastric cancer (GC) is a leading malignant disease in numerous countries, including Taiwan with limited therapeutic options. Animal viruses including oncolytic avian reovirus (ARV) have the possibility to avoid pre-existing immunity in humans, while being safe and immunostimulatory. Here, we provide a novel insight into oncolytic ARV and UV-ARV-sensitized patient's peripheral blood mononuclear cells (P-PBMCs) and tumor infiltrating lymphocytes (TILs) killing primary GC (PGC) cells through the surface TLR3 and TRAIL/DR4/DR5 immunogenic apoptosis pathway.

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  • The study focuses on improving the sustainability of lithium extraction from harsh brines, specifically through a new electrochemical cell design for lithium-ion batteries.
  • The cell uses iron-phosphate electrodes and separates brine and fresh water compartments while maintaining electrochemical connectivity, allowing for efficient extraction from high magnesium-to-lithium ratio brines.
  • The technology demonstrated a significant recovery rate of 84% from Dead Sea brine and achieved over 21% energy savings by utilizing the osmotic energy present in the brines.
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Background: Although tumor cells undergoing epithelial-mesenchymal transition (EMT) typically exhibit spindle morphology in experimental models, such histomorphological evidence of EMT has predominantly been observed in rare primary spindle carcinomas. The characteristics and transcriptional regulators of spontaneous EMT in genetically unperturbed non-spindled carcinomas remain underexplored.

Methods: We used primary culture combined with RNA sequencing (RNA-seq), single-cell RNA-seq (scRNA-seq), and in situ RNA-seq to explore the characteristics and transcription factors (TFs) associated with potential spontaneous EMT in non-spindled breast carcinoma.

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The mean diagnosis age of autism was about 5 years in Taiwan. Whether the delayed diagnosis of autism (≥ 6 years) was associated with parental severe mental disorders remained unknown. The parents of 22,859 autistic individuals and 228,590 age- and sex-matched nonautistic individuals were assessed for the presence of severe mental disorders (schizophrenia, bipolar disorder, major depressive disorder, alcohol use disorder, and substance use disorder).

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Early intervention is imperative for young children with attention-deficit/hyperactivity disorder (ADHD) who manifest heterogeneous neurocognitive deficits. The study investigated the functional connectivity and complexity of brain activity among young children with ADHD exhibiting a fast cognitive processing speed (ADHD-F, n = 26), with ADHD exhibiting a slow cognitive processing speed (ADHD-S, n = 17), and typically developing children (n = 35) using wireless electroencephalography (EEG) during rest and task conditions. During rest, compared with the typically developing group, the ADHD-F group displayed lower long-range intra-hemispheric connectivity, while the ADHD-S group had lower frontal beta inter-hemispheric connectivity.

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Introduction: Approximately 60 million individuals worldwide used opioids in 2021, constituting 1.2% of the global adult population. This study aimed to evaluate the effectiveness of integrated treatment strategies for opioid use disorder and nicotine use disorder by assessing the impact of smoking cessation within a methadone treatment framework.

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The creation of uniformly molecular-sized through-pores within polymeric membranes and the direct evidence of these pores are essential for fundamentally understanding the transport mechanism and improving separation efficiency. Herein, we report an electric-field-assisted interface synthesis approach to fabricating large-area covalent organic framework (COF) membranes that consist of preferentially oriented single-crystalline COF domains. These single-crystalline frameworks were translated into high-density, vertically aligned through-pores across the entire membrane, enabling the direct visualization of membrane pores with an ultrahigh resolution of 2 Å using the low-dose high-resolution transmission electron microscopy technique (HRTEM).

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Background: Due to cardiotoxicity concerns, the concurrent use of epirubicin and trastuzumab has not been fully studied. This study aimed to examine the cardiotoxicity and pathological complete response (pCR) rate associated with the concurrent regimens in patients with human epidermal growth factor receptor 2 (HER2)-positive early breast cancer (EBC).

Methods: We conducted a systematic search for relevant literature in the NCBI/PubMed, the Cochrane database, and international conference abstracts for phase II or III randomized controlled trials between January 1, 2000, and February 28, 2021, focusing on the concurrent regimens in patients with HER2-positive EBC.

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Objective: The identification and diagnosis of children with attention deficit hyperactivity disorder (ADHD) traits is challenging during the preschool stage. Neuropsychological measures may be useful in early assessments. Furthermore, analysis of event-related behavior appears to be an unmet need for clinical treatment planning.

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Article Synopsis
  • Breast cancer rates are rising rapidly in East Asia, especially among premenopausal women, potentially linked to estrogen-DNA adducts.
  • The study involved a case-control setup, where they compared healthy individuals and those with benign breast disease to patients with breast cancer, analyzing specific gene polymorphisms related to DNA repair.
  • Results indicated that certain gene variations (APEX1_rs1130409) and higher estrogen-DNA adduct levels significantly increase the risk of breast cancer, particularly in premenopausal women.
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Significance: Widefield microscopy of the entire dorsal part of mouse cerebral cortex enables large-scale ("mesoscopic") imaging of different aspects of neuronal activity with spectrally compatible fluorescent indicators as well as hemodynamics via oxy- and deoxyhemoglobin absorption. Versatile and cost-effective imaging systems are needed for large-scale, color-multiplexed imaging of multiple fluorescent and intrinsic contrasts.

Aim: We aim to develop a system for mesoscopic imaging of two fluorescent and two reflectance channels.

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Background: Alcohol consumption is associated with both beneficial and harmful effects, and the role of alcohol consumption in chronic kidney disease (CKD) remains inconclusive. This study aimed to investigate the relationship between alcohol consumption and CKD or estimated glomerular filtration rate (eGFR).

Methods: This study enrolled adults from the second Taiwanese Survey on Prevalences of Hypertension, Hyperglycemia, and Hyperlipidemia, conducted in 2007.

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Background: Antibody‒drug conjugates (ADCs) are innovative biopharmaceutics consisting of a monoclonal antibody, linkers, and cytotoxic payloads. Monitoring circulating payload concentrations has the potential to identify ADC toxicity; however, accurate quantification faces challenges, including low plasma concentrations, severe matrix effects, and the absence of stable isotope-labeled internal standards (SIL-IS) for payloads and their derivatives. Previous studies used structural analogs as internal standards, but different retention times between structural analogs and target analytes may hinder effective matrix correction.

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We present a case involving a 60-year-old man with subacute delirium characterized by challenging attention shifts and obstinate behavior, contrasting with his usual mild-mannered personality. The patient developed pneumonia and a urinary tract infection following the onset of subacute delirium. Despite exhaustive investigations, the cause remained elusive until cerebrospinal fluid analysis revealed Tau positivity.

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Background: Acute kidney injury (AKI) is a severe postoperative complication associated with poor clinical outcomes, including the development of chronic kidney disease (CKD) and death. This study aimed to investigate the incidence and determinants of AKI following elective surgeries for degenerative lumbar spine disease.

Methods: All patient data were extracted from the US Nationwide Inpatient Sample database.

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Introduction: Opioid use disorder is a cause for concern globally. This study aimed to optimize methadone dose adjustments using mixed modeling and machine learning.

Methods: This retrospective study was conducted at Taichung Veterans General Hospital between January 1, 2019, and December 31, 2020.

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Maternal nutrient intake influences the health of the offspring via microenvironmental systems in digestion and absorption. Maternal high fructose diet (HFD) impairs hippocampus-dependent memory in adult female rat offspring. However, the underlying mechanisms remain largely unclear.

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Article Synopsis
  • The study aims to help the WHO eliminate viral hepatitis by 2030 by identifying areas with high hepatitis C virus (HCV) prevalence for targeted screening and treatment.
  • Data from eight hospitals in Yunlin County showed an overall anti-HCV screening rate of 30.4% and a prevalence rate of 15.4% among residents aged 40 and older, with village-specific rates varying significantly.
  • Community-based screening in Kouhu Township confirmed the findings, revealing ongoing high prevalence rates, and highlighted the importance of prioritizing screening in these at-risk areas.
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Excessive fructose intake presents the major risk factor for metabolic cardiovascular disease. Perivascular adipose tissue (PVAT) is a metabolic tissue and possesses a paracrine function in regulating aortic reactivity. However, whether and how PVAT alters vascular function under fructose overconsumption remains largely unknown.

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Article Synopsis
  • The study focuses on a widefield microscopy technique that allows for large-scale imaging of the mouse cerebral cortex, capturing neuronal activity and hemodynamics simultaneously.
  • The aim is to develop a cost-effective imaging system that can capture two fluorescent signals and two reflectance channels.
  • The results show effective recording of neuronal and hemodynamic activity in awake mice, using an innovative setup that can also monitor behavioral changes like pupil diameter.
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