Publications by authors named "Ji-Hye Lee"

Kidney fibrosis causes irreversible structural damage in chronic kidney disease and is characterized by aberrant extracellular matrix (ECM) accumulation. Although glutamyl-prolyl-tRNA synthetase 1 (EPRS1) is a crucial enzyme involved in proline-rich protein synthesis, its role in kidney fibrosis remains unclear. The present study revealed that EPRS1 expression levels were increased in the fibrotic kidneys of patients and mice, especially in fibroblasts and proximal tubular epithelial cells, on the basis of single-cell analysis and immunostaining of fibrotic kidneys.

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Objective: The rapid societal changes have underscored the importance of effective stress detection and management. Chronic mental stress significantly contributes to both physical and psychological illnesses. However, many individuals often remain unaware of their stress levels until they face physical health issues, highlighting the necessity for regular stress monitoring.

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Tumor necrosis factor receptor-associated protein 1 (TRAP1) is a molecular chaperone implicated in pro-tumorigenic pathways by regulating the folding of substrate proteins (clients) within cancer cells. Recent research has pinpointed a potentially druggable allosteric site within the client binding site (CBS) of TRAP1, suggesting this site might offer a more effective strategy for developing potent and selective TRAP1 inhibitors. However, the absence of reliable assay systems has hindered quantitative evaluation of inhibitors.

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Mesangial expansion and proliferation have been implicated in the pathogenesis of IgA nephropathy (IgAN). Mesangial cells in glomerulus are important contributors to commencement of IgAN. From minimal mesangial expansion to diffuse proliferation, the mesangial alteration is linked to clinical and pathological features of IgAN.

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  • The study examined how reducing phosphorus (P) levels in chicken diets, with or without phytase supplementation, affects growth, stress, and gut health in broiler chickens.
  • Four dietary treatments were tested over 25 days with varying P concentrations: adequate, low, and very low P, plus a very low P diet with phytase.
  • Results showed very low P diets negatively impacted growth and gut structure, increased stress markers, but low P diets and very low P with phytase helped maintain health and growth performance.
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  • - The study explored how different levels of dietary glycine (Gly) impacted growth, meat quality, liver health, and gut health in broiler chickens experiencing heat stress, testing five diets with varying Gly concentrations.
  • - Results showed that chickens on the negative control diet had a better feed conversion ratio (FCR) compared to the positive control, and those receiving up to 1.6% Gly saw improvements in FCR, meat water holding capacity, and liver health markers.
  • - Higher Gly supplementation also led to significant improvements in gut health, evidenced by increased villus height and goblet cell numbers, indicating enhanced intestinal health in the chickens.
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  • The study investigates the potential of new compounds PMG-505-010 and PMG-505-013 as peripheral CB1 receptor antagonists aimed at treating obesity and its related complications, specifically non-alcoholic fatty liver disease (NAFLD).
  • These compounds were designed to limit brain exposure by modifying rimonabant, confirmed through physicochemical analysis showing reduced lipophilicity and increased polarity.
  • In experiments, the new antagonists improved metabolic health in obese mice, reversing liver injury and fibrosis while avoiding CNS side effects associated with traditional CB1R antagonists.
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Objective: The present study aimed to investigate the effectiveness of dietary β-mannanase supplementation on growth performance, intestinal morphology, digesta viscosity, and dietary nutrient utilization in broiler chickens through a meta-analysis. The effects were further examined by a meta-regression analysis with activity levels of β-mannanase in broiler diets.

Methods: A total of 23 studies, which were conducted in 11 countries and completed between December 2003 and August 2023, were selected for this meta-analysis.

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  • The study aimed to evaluate the surgical outcomes of macular holes (MH) in patients with macular telangiectasia type 2 (MacTel) and compare them to those with idiopathic MH over several years.
  • It analyzed data from patients who underwent MH surgery at a single center, focusing on visual acuity and optical coherence tomography (OCT) parameters pre- and post-surgery.
  • Results showed better closure rates and visual improvements in idiopathic MH, while MacTel MH patients had more prominent recovery of certain retinal structures, suggesting different healing patterns, though further research is needed to understand these differences.
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Background: Receptor-interacting protein kinase (RIPK)3 is an essential molecule for necroptosis and its role in kidney fibrosis has been investigated using various kidney injury models. However, the relevance and the underlying mechanisms of RIPK3 to podocyte injury in albuminuric diabetic kidney disease (DKD) remain unclear. Here, we investigated the role of RIPK3 in glomerular injury of DKD.

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Transcranial direct current stimulation (tDCS) is emerging as a promising non-invasive intervention for tinnitus by aiming to modulate abnormal brain activity. This study investigated the efficacy of dual-session tDCS for the relief of perception, distress, and loudness in patients with severe chronic subjective tinnitus and assessed the duration of tinnitus suppression effects compared to single-session and control groups over a 2-month follow-up. In a prospective, randomized, single-blind, placebo-controlled trial, 30 participants with severe chronic subjective tinnitus underwent bifrontal tDCS.

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Current-induced spin-orbit torque (SOT) offers substantial promise for the development of low-power, nonvolatile magnetic memory. Recently, a single-phase material concurrently exhibiting magnetism and the spin Hall effect has emerged as a scientifically and technologically interesting platform for realizing efficient and compact SOT systems. Here, we demonstrate external-magnetic-field-free switching of perpendicular magnetization in a single-phase ferromagnetic and spin Hall oxide SrRuO.

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Purpose: Although leukemic retinopathy accounts for 80% of ocular complications in acute leukemia, its pathogenesis remains unclear. To evaluate changes in retinal and choroicapillaris and structural parameters in patients with acute leukemia, we analyzed the correlation between vascular perfusion metrics and laboratory parameters and assessed the changes after hematopoietic stem cell transplantation (HSCT).

Methods: Herein, 104 eyes of 52 patients aged 18 and above with acute leukemia were enrolled.

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Background: Firefighters are an at-risk population for multiple psychiatric conditions, including posttraumatic stress disorder (PTSD), depression, alcohol use disorders (AUDs), and insomnia. These disorders are likely to co-occur; however, patterns of comorbidity have scarcely been investigated in firefighters. We aimed to identify subgroups of comorbidity of PTSD, depression, AUDs, and insomnia in a nationwide population of firefighters in South Korea.

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  • * The research found that MerTK expression decreases when osteoblast precursors are stimulated by BMP2, and MerTK-deficient mice showed increased bone volume due to higher bone formation and lower resorption, linked to enhanced signaling pathways in osteoblasts.
  • * The findings suggest that targeting MerTK could be a potential treatment for bone-lytic diseases like periodontitis and osteoporosis, since MerTK deficiency was associated with a reduction in osteoclast differentiation and bone
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Insulin is essential for maintaining normoglycemia and is predominantly secreted in response to glucose stimulation by β-cells. Incretin hormones, such as glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide, also stimulate insulin secretion. However, as obesity and type 2 diabetes worsen, glucose-dependent insulinotropic polypeptide loses its insulinotropic efficacy, whereas GLP-1 receptor (GLP-1R) agonists continue to be effective owing to its signaling switch from Gs to Gq.

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Background: Endocrine therapy resistance in hormone receptor-positive/HER2-negative (HR+/HER2-) breast cancer (BC) is a significant clinical challenge that poses several unmet needs in the management of the disease. This study aimed to investigate the prognostic value of c-MET-positive circulating tumor cells (cMET+ CTCs), ESR1/PIK3CA mutations, and cell-free DNA (cfDNA) concentrations in patients with hormone receptor-positive (HR+) metastatic breast cancer (mBC).

Methods: Ninety-seven patients with HR+ mBC were prospectively enrolled during standard treatment at Samsung Medical Center.

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  • Inadvertent perioperative hypothermia (IPH), which occurs when core body temperature falls below 36°C, is a common complication during shoulder arthroscopy, especially under general anesthesia (GA).
  • A study comparing GA and interscalene brachial plexus block (ISBPB) found a significantly higher incidence of IPH in the GA group (52.5%) compared to the ISBPB group (30.0%).
  • The results suggest that using ISBPB instead of GA may help reduce the risk of IPH, as evidenced by higher post-anesthesia care unit temperatures in the ISBPB group.
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  • The study analyzed kidney biopsy results from 237 patients with Type 2 diabetes to reassess the role of biopsies in predicting renal outcomes related to diabetic kidney disease (DKD).
  • Results showed that a significant percentage of diabetic patients had varying forms of kidney disease, with DKD alone having the highest progression rate to end-stage kidney disease (ESKD).
  • The findings suggest that kidney biopsies provide valuable insights for identifying patients with non-DKD and help predict worsening kidney conditions, guiding more effective treatment approaches.
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As in type 1 diabetes, the loss of pancreatic β-cells leads to insulin deficiency and the subsequent development of hyperglycemia. Exercise has been proposed as a viable remedy for hyperglycemia. Lithium, which has been used as a treatment for bipolar disorder, has also been shown to improve glucose homeostasis under the conditions of obesity and type 2 diabetes by enhancing the effects of exercise on the skeletal muscles.

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Introduction: The formation and function of the corpus luteum (CL) increase the likelihood of pregnancy and efficiently manage implantation. Apoptosis must occur at an appropriate time in the formation of the CL. This also affects its function.

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Background: Ubiquitin-specific protease 11 (USP11), one of the principal phosphatase and tensin homolog (PTEN) deubiquitinases, can reserve PTEN polyubiquitination to maintain PTEN protein integrity and inhibit PI3K/AKT pathway activation. The aim of the current study was to investigate the associations between immunohistochemical USP11 staining intensities and prognostic indicators in individuals with prostate cancer.

Methods: Tissue microarrays (TMAs) were performed for human prostate cancer and normal tissue (control) samples.

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Geographical origin is an important determinant of agricultural product quality and safety. Herein, inductively coupled plasma (ICP) analysis was applied to determine the inorganic elemental content of onions and identify their geographical origin (Korean or Chinese). Chemometric, including principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA), and orthogonal partial least square discriminant analysis (OPLS-DA) were applied to the ICP results.

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Osteoarthritis (OA) is a common chronic joint inflammatory disease characterized by progressive destruction of the articular cartilage, bone remodeling, and excessive chronic pain. Most therapeutic approaches do not rescue the progression of OA effectively or provide relief of symptoms. larva (PBSL), which is attracting attention, is an edible insect with very high nutritional value and herbal medicine for the treatment of blood stasis, hepatic disease, and various inflammatory diseases.

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  • Angiotensin II receptor blockers (ARBs) can cause severe hypotension during general anesthesia, even when discontinued 48 hours prior to surgery, leading to surgical delays.
  • A 66-year-old patient experienced refractory hypotension during anesthesia for cranioplasty despite stopping azilsartan, requiring multiple interventions that ultimately postponed the surgery.
  • For successful management, the patient's ARB was discontinued 96 hours before a second surgery, allowing for safe anesthesia and a successful operation without hypotension.
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