Publications by authors named "Hsu-Yu Chen"

Background: Intraoperative radiotherapy (IORT) is considered a de-escalating adjuvant treatment for breast cancer low-risk patients. However, the broader criteria applied by the Taiwan IORT Study Cooperative Group led to an increased rate of locoregional recurrence (LRR) among patients receiving only IORT. Consequently, we revised the criteria for sole IORT treatment to include patients who meet the American Society for Radiation Oncology (ASTRO) eligibility standards.

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  • Understanding liver regeneration mechanisms is essential for improving liver surgeries, as partial hepatectomy is commonly used for liver issues.
  • Hepsin, a serine protease, is shown to encourage hepatocyte (liver cell) growth and division, increasing liver size by activating the EGFR-Raf-MEK-ERK pathway.
  • Administering Hepsin post-surgery boosts liver regeneration without causing lasting problems like liver fibrosis or cancer, indicating promising prospects for clinical applications in liver recovery.
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  • Empathy is crucial in healthcare, especially with mental illnesses, and this study explored using virtual reality (VR) to enhance empathy in medical students.
  • Medical students were divided into intervention and control groups, where the intervention group experienced a VR simulation of a day in the life of a depressed student, while the control group had a general medical student experience.
  • Results showed that the intervention group significantly improved in perspective-taking and compassionate care, while their ability to stand in the patient's shoes decreased, indicating a shift in understanding mental health.
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Mutations in various type II transmembrane serine protease (TMPRSS) family members are associated with non-syndromic hearing loss, with some mechanisms still unclear. For instance, the mechanism underlying profound hearing loss and tectorial membrane (TM) malformations in hepsin/TMPRSS1 knockout (KO) mice remains elusive. In this study, we confirmed significantly elevated hearing thresholds and abnormal TM morphology in hepsin KO mice, characterized by enlarged TM with gaps and detachment from the spiral limbus.

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  • Acetaminophen overdose is a major cause of liver damage, and current treatments mainly involve N-acetylcysteine, which have limitations.
  • This study reveals that hepsin, a type of protease, plays a protective role against acetaminophen-induced liver injury by regulating gap junctions and oxidative stress in the liver.
  • Hepsin deficiency worsens liver damage in mice, while administration of hepsin, especially in combination with lower doses of N-acetylcysteine, shows promise for improving treatment outcomes for liver injuries.
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The immunoglobulin locus of B cells can be reprogrammed by genome editing to produce custom or non-natural antibodies that are not induced by immunization. However, current strategies for antibody reprogramming require complex expression cassettes and do not allow for customization of the constant region of the antibody. Here we show that human B cells can be edited at the immunoglobulin heavy-chain locus to express heavy-chain-only antibodies that support alterations to both the fragment crystallizable domain and the antigen-binding domain, which can be based on both antibody and non-antibody components.

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Giant phyllodes tumors, typically exceeding 10 cm in size, are neoplastic lesions with malignant potential. Surgical excision in small-breasted Asian women presents unique challenges where expected poor aesthetic outcomes may delay timely medical intervention. The periareolar mastopexy technique offers a comprehensive solution, enabling complete tumor removal alongside mastopexy to achieve optimal breast contouring.

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  • The study aims to improve the prediction of all-cause mortality in Type 2 Diabetes patients with long-term Atherosclerotic Cardiovascular Disease risk factors, highlighting the limited effectiveness of the Coronary Artery Calcium score for this purpose.
  • A cohort of 1929 asymptomatic patients aged 40-80 was analyzed using various clinical and demographic data to create a predictive scoring system based on significant risk factors identified through a multivariate analysis.
  • The findings reveal a clear stratification of risk levels, with notable differences in 5-year survival rates, confirming that the newly developed Poh-Ai Predictive Scoring System effectively predicts mortality and cardiovascular incidents in this patient population.
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This study delves into advanced methane purification techniques within anaerobic fermentation bioreactors, focusing on selective CO absorption and comparing photosynthetic bacteria (PNSB) with chemical adsorbents. Our investigation demonstrates that MgO-Mg(OH) composites exhibit remarkable CO selectivity over CH, substantiated through rigorous bulk and surface modelling analyses. To address the challenges posed by MgCO shell formation on MgO particles, hindering CO transport, we advocate for the utilisation of MgO-Mg(OH) composites.

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With increasing resistance of SARS-CoV-2 variants to antibodies, there is interest in developing entry inhibitors that target essential receptor-binding regions of the viral Spike protein and thereby present a high bar for viral resistance. Such inhibitors could be derivatives of the viral receptor, ACE2, or peptides engineered to interact specifically with the Spike receptor-binding pocket. We compared the efficacy of a series of both types of entry inhibitors, constructed as fusions to an antibody Fc domain.

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We describe a genome editing strategy to reprogram the immunoglobulin heavy chain (IgH) locus of human B cells to express custom molecules that respond to immunization. These heavy chain antibodies (HCAbs) comprise a custom antigen-recognition domain linked to an Fc domain derived from the IgH locus and can be differentially spliced to express either B cell receptor (BCR) or secreted antibody isoforms. The HCAb editing platform is highly flexible, supporting antigen-binding domains based on both antibody and non-antibody components, and also allowing alterations in the Fc domain.

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We describe a genome editing strategy to reprogram the immunoglobulin heavy chain (IgH) locus of human B cells to express custom molecules that respond to immunization. These heavy chain antibodies (HCAbs) comprise a custom antigen-recognition domain linked to an Fc domain derived from the IgH locus and can be differentially spliced to express either B cell receptor (BCR) or secreted antibody isoforms. The HCAb editing platform is highly flexible, supporting antigen-binding domains based on both antibody and non-antibody components, and also allowing alterations in the Fc domain.

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The objective of this study is to develop hydroxyapatite (HAp) particles for targeted delivery of honokiol to tumor sites after glioma surgical management. Honokiol is released from the HAp-honokiol particles inside cancer cells through endocytosis and subsequent acid lysosomal dissolution. HAp is synthesized using a co-precipitation method, and egg white is added to create porous structures.

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To evaluate the kinetics of serum and urinary hepcidin levels along with anemia-related parameters during the infection course of infants with febrile urinary tract infection (UTI), we enrolled febrile infants aged one to four months in this prospective study. Febrile patients with UTI were allocated into () or non- groups according to urine culture results. Septic workup, blood hepcidin, iron profile, urinalysis, and urinary hepcidin-creatinine ratio were collected upon admission and 3 days after antibiotic treatment.

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  • Gene therapy for hemophilia has progressed significantly, with a major milestone reached in 2011 when a substantial factor IX increase was reported for hemophilia B, followed by the approval of a hemophilia A gene therapy in August 2022.
  • This review aims to inform physicians about the practical aspects of gene therapy, including its status, limitations (like neutralizing antibodies and liver health), and safety concerns, while emphasizing that it’s effective for a period but requires close monitoring.
  • Although gene therapy is a promising option, it will not replace all existing hemophilia treatments, and future advancements in both gene therapy and non-factor therapies are expected to better meet the diverse needs of hemophilia patients.
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a SARS-like coronavirus, continues to produce mounting infections and fatalities all over the world. Recent data point to SARS-CoV-2 viral infections in the human testis. As low testosterone levels are associated with SARS-CoV-2 viral infections in males and human Leydig cells are the main source of testosterone, we hypothesized that SARS-CoV-2 could infect human Leydig cells and impair their function.

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Immune checkpoint inhibitors are groundbreaking resources for cancer therapy. However, only a few patients with hepatocellular carcinoma (HCC) have shown positive responses to anti-PD-1 therapy. Neoantigens are sequence-altered proteins resulting from somatic mutations in cancer.

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The efficacy of treatment for advanced hepatocellular carcinoma (HCC) has remained limited. Polyinosinic-polycytidylic acid-poly-L-lysine carboxymethylcellulose (poly-ICLC) is a synthetic double-stranded RNA that serves as a viral mimic and induces an immune response. Intratumoral (IT) poly-ICLC injections can induce an autovaccination effect and prime the immune system, whereas intramuscular (IM) injection of poly-ICLC can attract and maintain tumor-specific cytotoxic T lymphocytes in tumors.

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Background: A 23-gene classifier has been developed based on gene expression profiles of Taiwanese luminal-like breast cancer. We aim to stratify risk of relapse and identify patients who may benefit from adjuvant chemotherapy based on genetic model among distinct clinical risk groups. Methods: There were 248 luminal (hormone receptor-positive and human epidermal growth factor receptor II-negative) breast cancer patients with 23-gene classifier results.

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Background: Liver transplantation (LT) is the treatment of choice for patients with hepatocellular carcinoma (HCC). Recurrence of HCC after LT occurs in 10% to 20% of cases. Preclinical studies to evaluate immune checkpoint inhibitors in conjunction with immunosuppressant treatment in transplant recipients have been lacking.

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Background: Coexistence of a catecholamine-secreting tumor and an adrenal cortical tumor is quite rare which makes both diagnosis and management challenging. The purpose of this article is to describe the presence of this condition, share a stepwise approach for preoperative evaluation, and review the related literature.

Case Presentation: A 44-year-old male patient had a history of hypertension and aggravating hypokalemia for years.

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  • Next generation sequencing data allows for the analysis of low-frequency and rare genetic variants, which are crucial for understanding complex diseases that can't be fully explained by common variants. CLIN_SKAT is an R package developed to address the challenges of analyzing this data efficiently.
  • The package provides four user-friendly functions for obtaining clinically relevant variants, conducting gene-based association analyses, and visualizing results, making it easier to interpret findings.
  • CLIN_SKAT includes pre-analysis steps and customizable features to enhance the clinical relevance of its results, and it's available for free on multiple operating systems for users to download and use in R.
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Background: Several therapies directed at novel targets and also immunotherapies have recently shown promising results in advanced or metastatic TNBC. We aimed to compare the efficacy and safety of these new regimens for advanced or metastatic TNBC (mTNBC).

Methods: The PubMed, Embase, and Cochrane Library electronic databases were searched for phase III randomized trials.

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Highly pathogenic avian influenza viruses (HPAIVs) frequently receive global attention as threats to public health. The NS1 protein is a key virulence factor known to impair host antiviral responses. The study herein revealed HPAIV H5N2 NS gene encoded additional protein; a truncated NS1 variant, designated NS3, produced by alternative splicing of the NS transcript.

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Breast cancer is among the most frequently diagnosed cancer types and the leading cause of cancer-related death in women. The mortality rate of patients with breast cancer is currently increasing, perhaps due to a lack of early screening tools. In the present study, using The Cancer Genome Atlas (TCGA) breast cancer dataset (n=883), it was determined that methylation of the protocadherin β15 () promoter was higher in breast cancer samples than that in normal tissues.

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