Publications by authors named "Lin-Feng Cheng"

Crimean-Congo hemorrhagic fever virus (CCHFV) can cause severe hemorrhagic fever in humans and is mainly transmitted by ticks. There is no effective vaccine for Crimean-Congo hemorrhagic fever (CCHF) at present. We developed three DNA vaccines encoding CCHFV nucleocapsid protein (NP), glycoprotein N-terminal (Gn) and C-terminal (Gc) fused with lysosome-associated membrane protein 1 (LAMP1) and assessed their immunogenicity and protective efficacy in a human MHC (HLA-A11/DR1) transgenic mouse model.

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Human action recognition has attracted considerable research attention in the field of computer vision, especially for classroom environments. However, most relevant studies have focused on one specific behavior of students. Therefore, this paper proposes a student behavior recognition system based on skeleton pose estimation and person detection.

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  • Dementia, particularly Alzheimer's disease (AD), significantly affects older adults and healthcare systems, with known risk factors like age, gender, diabetes, and potentially air pollution, which may influence cognitive decline.
  • A study involving 704 AD patients from the more polluted city of Kaohsiung and the less polluted Pingtung analyzed cognitive deterioration over time using the Clinical Dementia Rating scale and air pollution data.
  • Results indicated that patients in Kaohsiung experienced quicker cognitive decline compared to those in Pingtung, with higher exposure to specific pollutants (CO, NO2, PM10, SO2) correlating with increased risk of deterioration.
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Objectives: To investigate the feasibility and accuracy of balloon pulmonary angioplasty (BPA) using DynaCT angiographic reconstruction guidance.

Methods: Thirty-four BPAs (23 CTEPH patients) targeting 175 pulmonary arteries were included. Eleven BPAs (2D group) were guided by DSA two-dimensional angiography.

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  • The annual average concentration of fine particles in Taiwan is decreasing, but visibility remains poor due to persistent ambient haze.
  • A new method for analyzing the sources of haze combines air quality data with image processing from the Taiwan Environmental Protection Agency's monitoring stations.
  • The study found that different regions of Taiwan experience varying levels of haze contamination, and the method can assist in developing strategies to mitigate haze and its health impacts.
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Hemorrhagic fever with renal syndrome (HFRS) occurs widely throughout Eurasia. Unfortunately, there is no effective treatment, and prophylaxis remains the best option against the major pathogenic agent, hantaan virus (HTNV), which is an Old World hantavirus. However, the absence of cellular immune responses and immunological memory hampers acceptance of the current inactivated HFRS vaccine.

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Hantaviruses encompass rodent-borne zoonotic pathogens that cause severe hemorrhagic fever disease with high mortality rates in humans. Detection of infectious virus titer lays a solid foundation for virology and immunology researches. Canonical methods to assess viral titers rely on visible cytopathic effects (CPE), but Hantaan virus (HTNV, the prototype hantavirus) maintains a relatively sluggish life cycle and does not produce CPE in cell culture.

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A safe and effective Hantaan virus (HTNV) vaccine is highly desirable because HTNV causes an acute and often fatal disease (hemorrhagic fever with renal syndrome, HFRS). Since the immunity of the inactivated vaccine is weak and the safety is poor, HTNV virus-like particles (VLPs) offer an attractive and safe alternative. These particles lack the viral genome but are perceived by the immune system as virus particles.

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The cytotoxic T lymphocyte (CTL) response plays a key role in controlling viral infection, but only a few epitopes within the HTNV glycoprotein (GP) that are recognized by CTLs have been reported. In this study, we identified one murine HTNV GP-derived H2-K-restricted CTL epitope in C57BL/6 mice, which could be used to design preclinical studies of vaccines for HTNV infection. First, 15 8-mer peptides were selected from the HTNV GP amino acid sequence based on a percentile rank of <=1% by IEDB which is the most comprehensive collection of epitope prediction and analysis tool.

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Background: Prophylaxis is widely adopted the best choice against Hemorrhagic fever with renal syndrome (HFRS) caused by Hantavirus. However, loss of memory immune response maintenance remains as major shortcoming in current HFRS vaccine. A recombinant DNA vaccine, pVAX-LAMP/Gn was previously proved efficient, requiring long-term evaluations.

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Introduction: Although statin therapy is beneficial to patients with ischemic stroke, statin use, and intracerebral hemorrhage (ICH) remain a concern. ICH survivors commonly have comorbid cardiovascular risk factors that would otherwise warrant cholesterol-lowering medication, thus emphasizing the importance of assessing the characteristics of statin therapy in this population.

Methods: We performed a cohort study by using 10 years of data collected from the National Health Insurance Research Database in Taiwan.

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The protective effect of statin on Alzheimer disease (AD) is still controversial, probably due to the debate about when to start the use of statin and the lack of any large-scale randomized evidence that actually supports the hypothesis. The purpose of this study was to examine the protective effect of early statin use on mild-to-moderate AD in the total Taiwanese population.This was a total population-based case-control study, using the total population of Taiwanese citizens seen in general medical practice; therefore, the findings can be applied to the general population.

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  • IBS is a prevalent functional gastrointestinal disorder that leads to chronic visceral pain, and a study was conducted to explore changes in the anterior cingulate cortex (ACC) in a mouse model with this type of pain.
  • The findings indicated that there was an increased expression and trafficking of AMPA receptors in the ACC, correlating with enhanced synaptic transmission related to visceral pain.
  • The study suggests that targeting the AMPA receptors and their associated pathways may be a potential treatment strategy for alleviating chronic visceral pain.
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  • The study investigates how perceived sleep quality in obstructive sleep apnea (OSA) patients is influenced by factors like hypoxemia, which can affect central nervous system responses.
  • A review of polysomnography data from 156 OSA patients found that while traditional measures like the apnea-hypopnea index were not linked to perceived sleep quality (measured by the Pittsburgh sleep quality index), specific measures of oxygen saturation (SpO2) showed a negative correlation.
  • The findings suggest that greater severity of hypoxemia is linked to better perceived sleep quality, indicating a potential paradox where hypoxemia may impair the body's perception of respiratory distress in sleep.
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Background: Hantaviral diseases can have a high case fatality rate within the absence of broadly effective antiviral treatments or vaccines. We developed a DNA vaccine targeting the Hantavirus glycoprotein N-terminal (Gn) to major histocompatibility complex class II compartment by fusing the antigen with lysosome-associated membrane protein 1 (LAMP1), which altered antigen presenting pathway and activated the CD4+ T cells.

Methods: The segments of Gn and LAMP1 were cloned into vector pVAX1, and recombinant plasmid was constructed by inserting Gn sequence into LAMP1, between luminal and the transmembrane/cytoplasmic domains.

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Background: The association of aspirin use and nonsteroid anti-inflammatory drug (NSAID) use with amyotrophic lateral sclerosis (ALS) risk is unclear. This study determined whether use of any individual compound is associated with ALS risk by conducting a total population-based case-control study in Taiwan.

Methods: A total of 729 patients with newly diagnosed ALS who had a severely disabling disease certificate between January 1, 2002, and December 1, 2008, comprised the case group.

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Importance: Although several studies have shown that use of angiotensin-converting enzyme inhibitors (ACEIs) potentially decreased amyotrophic lateral sclerosis (ALS) risk in animal models, to our knowledge, there has been no human study in the literature discussing this issue.

Objective: To investigate the association between the use of ACEIs and the risk for developing ALS.

Design, Setting, And Participants: This case-control study was conducted using the total population of Taiwanese citizens seen in general medical practice; therefore, the findings can be applied to the general population.

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Objective: The aim of this study was to investigate whether the use of fenoterol, a beta2-adrenergic agonist, was associated with multiple sclerosis (MS) risk by conducting a total population-based case-control study in Taiwan.

Methods: A total of 578 patients with newly diagnosed MS who had a severely disabling disease (SDD) certificate between January 1, 2002 and December 1, 2008 comprised the case group. These cases were compared with 2890 gender-, age-, residence-, and insurance premium-matched controls.

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Hantavirus glycoprotein Gc is one of the main components that contribute to the generation of humoral immune responses, while the nucleocapsid protein (NP) is involved in cellular immune responses through the induction of antibody-dependent cytotoxic T cells. In this study, a chimeric gene, GcS0.7, which encodes a fusion protein containing Gc and truncated NP, was constructed as a candidate for Hantaan virus (HTNV) vaccine development.

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  • Decompressive craniectomy can lower the risk of death in patients with large strokes, but many still do not survive or have poor outcomes.
  • A study of 71 patients revealed an in-hospital mortality rate of 28.2%, with most survivors ending up with poor recovery scores.
  • Key predictors of mortality and recovery included the volume of brain damage seen on pre-operative CT scans and the age of the patient, highlighting the importance of these factors in treatment outcomes.
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Objective: Beat-to-beat cardiovascular variability analysis provides important information on the autonomic control. Bilateral radial arterial blood pressure waveforms (BPW) in stroke patients were compared to explore the efficacy of frequency-domain variability index in evaluating bilateral differences in the cerebral blood-flow condition.

Methods: Five-minute BPW signals were obtained in 22 stroke patients (Group S) and 21 healthy volunteers (control Group C).

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  • rt-PA is the only approved drug for treating acute ischemic stroke but can lead to serious side effects like intracranial hemorrhage and allergic reactions.
  • Patients on ACE inhibitors may have a higher risk of experiencing these allergic reactions.
  • The report highlights a case of a patient who had a severe anaphylactoid shock after receiving rt-PA, prompting a discussion on the link between rt-PA and ACE inhibitors.
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Aims: While the features of rapid-eye-movement sleep behavior disorder (RBD) have been reported in Caucasian patients, the characteristics of Chinese-Taiwanese patients with RBD have never been examined.

Methods: Subjects were retrospectively recruited between April 2005 and February 2008 from the neurological clinic and sleep laboratory in the Department of Neurology of Kaohsiung Medical University Hospital. A total of 70 consecutive subjects fulfilling the criteria for RBD were recruited.

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