Publications by authors named "HaEun Lee"

Atopic dermatitis (AD) is a chronic and inflammatory disease. According to a recent study, administration of canine MSCs is a potential therapy for immunological diseases. However, most related studies involve short-term experiments and acute atopic dermatitis animal models.

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The minichromosome maintenance protein (MCM) complex and Bloom syndrome helicase (BLM) are crucial components in DNA replication and cell division. MCM, a hexameric helicase that unwinds double-stranded DNA, serves as an important diagnostic and prognostic biomarker for cancer cells and a target for anticancer drug development. BLM, associated with G-quadruplex structures, is another key helicase in maintaining genomic stability.

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2D perovskite (PVSK) single crystals have received significant attention due to their unique optical and optoelectronic properties. However, current synthesis methods face limitations, particularly in large-area fabrication, which remain critical barriers to practical applications. In this study, the synthesis of red/green/purple-blue-colored 2D PVSK nanocrystals over a large area (4-inch wafer) and the fabrication of high-performance photodetector arrays are presented via a facile yet efficient spray-coating approach with a liquid-bridge transport effect.

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Ultraviolet-B (UVB) radiation is a major physical factor that induces structural changes in human skin. The aim of this study was to determine whether the novel silent information regulator 1 (sirtuin 1 SIRT1) protein activator, penilumamide, exerted any protective effects against UVB-induced skin damage using human HaCaT keratinocytes as a model. Enzymatic assays were performed to determine the SIRT1-activating ability of penilumamide, which was compared with that of resveratrol, a potent natural product SIRT1 activator with antioxidant and anti-inflammatory properties.

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Background: Lack of accountability within healthcare systems contributes to suboptimal healthcare quality and ultimately poor health outcomes, especially in low-income countries. In Uganda, our research team implemented a pilot project of quarterly health accountability meetings between community members and their local political leaders to discuss healthcare needs and strategies for quality improvement. In this study, we examine the community members' understanding and perceptions of the health accountability meetings, as well as the perceived impact of the meetings on local healthcare services and community life.

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Article Synopsis
  • * Our experiments included cytotoxicity assays on various cancer cell lines, revealing that perifosine selectively sensitized P-gp-overexpressing MCF-7/ADR and KBV20C cells, unlike other tested Akt inhibitors which were more effective on non-resistant cells.
  • * The mechanism behind perifosine's action involved increased apoptosis and cell cycle arrest in resistant MCF-7/ADR cells, yet it did not significantly inhibit P-gp activity, indicating that the drug
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Background: Circulating microRNAs (miRNAs) are potential biomarkers for various kidney diseases. In this study, we aimed to identify a circulating miRNA signature for detecting acute kidney injury (AKI) in scrub typhus.

Methods: We prospectively enrolled 40 patients with scrub typhus (20 with AKI, AKI group; 20 without AKI, non-AKI group) and 20 healthy volunteers (the HV group).

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Background: Accurate hospital length of stay (LoS) prediction enables efficient resource management. Conventional LoS prediction models with limited covariates and nonstandardized data have limited reproducibility when applied to the general population.

Objective: In this study, we developed and validated a machine learning (ML)-based LoS prediction model for planned admissions using the Observational Medical Outcomes Partnership Common Data Model (OMOP CDM).

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Background: Maternal mortality remains a persistent challenge in low- and middle-income countries, where evidence-based interventions of obstetric triage and prehospital communication remain sparse. There is limited implementation evidence for technology-based approaches to improve obstetric care in such contexts. Liberia struggles with maternal mortality, particularly in rural areas where deaths are attributable to delays from absent triage and interfacility communication.

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Background: Ehlers, 1897 is a genus of Opheliidae characterised by the body divided into three distinct regions, modified parapodia in chaetiger 10 and a ventral groove restricted to the posterior half of the body. To date, 18 species have been described in the genus. Amongst them, six species have been recorded in northeast Asia.

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Leaf senescence is a complex developmental process influenced by abscisic acid (ABA) and reactive oxygen species (ROS), both of which increase during senescence. Understanding the regulatory mechanisms of leaf senescence can provide insights into enhancing crop yield and stress tolerance. In this study, we aimed to elucidate the role and mechanisms of rice (Oryza sativa) LONG GRAIN 3 (OsLG3), an APETALA2/ETHYLENE RESPONSIVE FACTOR (AP2/ERF) transcription factor, in orchestrating dark-induced leaf senescence.

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, a traditional herb, is widely recognized for its pharmacologically active components, such as asiaticoside, madecassoside, asiatic acid, and madecassic acid. These components render it a highly sought-after ingredient in various industries, including cosmetics and pharmaceuticals. This study aimed to enhance the production and activity of these pharmacological constituents of using the plant growth-promoting rhizobacterium HyangYak-01 during its cultivation.

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This study investigated the efficacy of a phlorotannin supplement (PS) in ameliorating scopolamine (SCO)-induced memory deficits in mice, focusing on synaptic function and the underlying molecular mechanisms. Male C57BL/6N mice were divided into six groups and treated with vehicle, donepezil (5 mg/kg body weight, (BW)), or PS (100, 250, or 500 mg/kg BW) for 6 weeks. Behavioral tests were conducted, followed by Golgi staining, immunofluorescence, and immunoblotting to assess synaptic protein expression and signaling pathways.

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Many types of neurons exhibit a daily rhythm of intrinsic excitability. Here, we present a protocol for assessing circadian regulation of dentate granule cell excitability using a mouse model for conditional knockout of the molecular clock protein BMAL1. We describe steps for obtaining healthy oblique horizontal slices that contain the hippocampus and measuring intrinsic excitability and synaptic potentials by combining whole-cell patch-clamp recordings and perforant-path electric stimulation.

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Article Synopsis
  • - The study investigates the effects of the dopamine analogue CA140 on Alzheimer's disease pathology and related cognitive functions by administering it to both wild-type and 5xFAD mice models over a period of 10 to 17 days.
  • - Results showed that CA140 significantly reduced Alzheimer-related markers such as Aβ/tau fibrillation, plaque numbers, and neuroinflammation, possibly via the inhibition of NLRP3 activation and regulation of key astrocyte and microglial markers.
  • - Additionally, CA140 administration improved long-term memory and synaptic function, indicating its potential to modulate cognitive deficits in Alzheimer's through dopamine D1 receptor signaling pathways.
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Background: Pre-transplant donor-specific anti-human leukocyte antigen antibody (HLA-DSA) is a recognized risk factor for acute antibody-mediated rejection (ABMR) and allograft failure. However, the clinical relevance of pre-transplant crossmatch (XM)-negative HLA-DSA remains unclear.

Methods: We investigated the effect of XM-negative HLA-DSA on post-transplant clinical outcomes using data from the Korean Organ Transplantation Registry (KOTRY).

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  • Distant metastasis is a major cause of cancer death, and immune surveillance, particularly through natural killer (NK) cells, plays a crucial role in keeping it under control.
  • The study finds that the MAP4K1 gene, which encodes the protein HPK1, is overexpressed in dysfunctional NK cells, contributing to increased metastasis in melanoma while not affecting the growth of primary tumors.
  • HPK1 acts as an intracellular checkpoint that limits NK cell effectiveness, and its dysregulation, often linked to factors like TGF-β1, allows tumors to evade immune responses during metastasis and affects patient responses to immune therapy.
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Minerals is required small amounts among various nutrients, but it has a significant impact on sow longevity and reproduction performance. This study was carried out to see the beneficial effects of marine-derived Ca-Mg complex on the reproductive performance of sows during four-parity periods. Seventy-two gilts ([Yorkshire × Landrace] × Duroc), with an average body weight of 181 kg, were randomly allocated to three groups; CON (basal diet), 0.

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Sex and gender disparities in biomedical research have been emphasized to improve scientific knowledge applied for the health of both men and women. Despite sex differences in cancer incidence, prognosis, and responses to therapeutic agents, mechanistic explanations at molecular levels are far from enough. Recent studies suggested that cell sex is an important biological variable due to differences in sex chromosome gene expression and differences in events associated with developmental biology.

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Background: The skin microbiome is essential in guarding against harmful pathogens and responding to environmental changes by generating substances useful in the cosmetic and pharmaceutical industries. Among these microorganisms, Streptococcus is a bacterial species identified in various isolation sources. In 2021, a strain of Streptococcus infantis, CX-4, was identified from facial skin and found to be linked to skin structure and elasticity.

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Adult-born granule cells (abGCs) exhibit a transient period of elevated synaptic plasticity that plays an important role in hippocampal function. Various mechanisms have been implicated in this critical period for enhanced plasticity, including minimal GABAergic inhibition and high intrinsic excitability conferred by T-type Ca channels. Here we assess the contribution of synaptic inhibition and intrinsic excitability to long-term potentiation (LTP) in abGCs of adult male and female mice using perforated patch recordings.

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Article Synopsis
  • Researchers are focusing on finding new drug candidates for autism spectrum disorder (ASD) due to the few FDA-approved options available.
  • Among these candidates, 5-HTR modulators show promise in reducing autism-like behaviors in animal models.
  • The study identified a specific 5-HTR antagonist that significantly decreased self-grooming behavior in Shank3 transgenic mice and improved neurogenesis, indicating it could be a potential treatment for ASD.
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Objectives: This study investigated the association between exacerbated economic hardship during the coronavirus disease 2019 (COVID-19) pandemic and changes in the health behaviors of Korean adolescents.

Methods: We analyzed data from the 2021 Korea Youth Risk Behavior Survey and included 44 908 students (22 823 boys and 22 085 girls) as study subjects. The dependent variables included changes in health behaviors (breakfast habits, physical activity, and alcohol use) that occurred during the COVID-19 pandemic.

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