Publications by authors named "Eun Koh"

Background: To assess the association between patients with normal tension glaucoma (NTG) and the risk of obstructive sleep apnoea (OSA) using the STOP-Bang questionnaire.

Methods: A population-based cross-sectional analysis was performed using data from the Korean National Health and Nutrition Examination Survey from 2019 to 2021. An overall of 8832 subjects ≥ 40 years of age were investigated.

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Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease worldwide. Despite advancements in various treatments, the prevalence of DKD continues to rise, leading to a significant increase in the demand for dialysis and kidney transplantation. This study aimed to evaluate the effects of a Small cell+Ultra Potent+Scale UP cell (SMUP-Cell), a type of human umbilical cord blood-derived mesenchymal stem cell, on DKD in the db/db mouse model of type 2 diabetes mellitus.

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  • The study examines the progression of acute kidney injury (AKI) to acute kidney disease (AKD) or chronic kidney disease (CKD) and aims to identify biomarkers and personalized treatments.
  • It involves a collaboration among eight Korean hospitals, where they gathered data from around 1,500 patients undergoing continuous kidney replacement therapy, using a combination of historical and ongoing patient information.
  • The research intends to develop an AI model to predict patient outcomes and guide tailored treatment plans, ultimately providing insights for better management and prevention of kidney-related diseases.
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  • Immunoglobulin A nephropathy (IgAN) is a significant cause of end-stage kidney disease (ESKD), and while the International IgA Nephropathy Prediction Tool (IIgAN-PT) exists for prognosis, there's a need to enhance prediction accuracy using machine learning (ML).
  • A study involving 4,425 IgAN patients analyzed various ML models, including different versions of the CatBoost model, to predict ESKD and renal function using clinical and pathological data; these were compared to the performance of the IIgAN-PT.
  • Results showed that while ML models performed well in predicting kidney outcomes, they did not surpass the IIgAN-PT's performance, indicating that current ML methods
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  • This study investigates the long-term effects of postoperative acute kidney injury (PO-AKI) on mortality using machine learning to improve predictions over traditional methods.
  • Data from 199,403 patients were analyzed, revealing that those with PO-AKI had significantly lower survival rates, with the most effective prediction model being XGBoost combined with an accelerated failure time model.
  • The findings suggest that machine learning techniques can more accurately predict the risk of mortality after PO-AKI, which could help develop better clinical guidelines and patient interventions.
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  • Immune checkpoint inhibitors (ICIs) can cause immune-related adverse events like hypophysitis, which affects patients' health and quality of life; this study aimed to understand its clinical features better.
  • Analyzed data from 21 adult patients at Asan Medical Center revealed that the rates of various hormonal deficiencies were high among those with immune-related hypophysitis, while the overall incidence was found to be low but significant.
  • The study offers insights into the timeline and hormonal changes related to irH, potentially helping to predict and manage this condition in patients receiving ICIs.
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Cerebrospinal fluid (CSF) plays an important role in brain tumors, including medulloblastoma (MBL). Recent advancements in mass spectrometry systems and 'Omics' data analysis methods enable unbiased, high proteome depth research. We conducted proteomic profiling of the total CSF in MBL patients with the purpose of finding a potential diagnostic biomarker for MBL.

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Background: Whether advanced age is associated with poor outcomes of elderly patients with acute kidney injury (AKI) requiring continuous renal replacement therapy (CRRT) is controversial. This study aimed to evaluate age effect and predictors for mortality in elderly AKI patients undergoing CRRT.

Methods: Data of 480 elderly AKI patients who underwent CRRT were retrospectively analyzed.

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Background: Continuous renal replacement therapy (CRRT) has become the standard modality of renal replacement therapy (RRT) in critically ill patients. However, consensus is lacking regarding the criteria for discontinuing CRRT. Here we validated the usefulness of the prediction model for successful discontinuation of CRRT in a multicenter retrospective cohort.

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Choroid plexus tumors (CPTs) are intraventricular tumors derived from the choroid plexus epithelium and occur frequently in children. The aim of this study was to investigate the genomic and epigenomic characteristics of CPT and identify the differences between choroid plexus papilloma (CPP) and choroid plexus carcinoma (CPC). We conducted multiomics analyses of 20 CPT patients including CPP and CPC.

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Acute kidney injury (AKI) is characterized by an abrupt decline of excretory kidney function. The incidence of AKI has increased in the past decades. Patients diagnosed with AKI often undergo diverse clinical trajectories, such as early or late recovery, relapses, and even a potential transition from AKI to chronic kidney disease (CKD).

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Objective: Craniosynostosis involves early closure of one or more sutures, which is known to limit normal cranium growth and interfere with normal brain development. Various surgical methods are used, ranging from minimally invasive strip craniectomy to more extensive whole-vault cranioplasty. This study aimed to evaluate neurocognitive outcomes 5 years after surgical treatment in children with craniosynostosis and to evaluate relevant clinical factors.

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: Traumatic vascular injuries of the head and neck pose significant treatment challenges due to the complex anatomy, diverse clinical presentation, and mostly emergent nature. Endovascular treatment increasingly complements traditional surgical approaches. This study aimed to report our 10-year experience in treating traumatic vascular injuries of the head and neck with endovascular therapy and to determine the effectiveness of endovascular treatment.

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This study examined the experiences and the perceptions of elder mistreatment (EM), as well as help-seeking knowledge and behaviors, particularly about Adult Protective Services (APS), among community samples of Asian American older adults, including Koreans, Chinese, and others ( = 288). Approximately 27% of the study participants experienced at least one EM incident in the past year. Between 27% and 38% of the participants reported that they were likely to seek help from APS for different types of EM.

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Purpose: The present study aimed to evaluate the role of early and delayed surgery in congenital brain tumors and analyze the clinical outcomes of infantile brain tumors.

Materials And Methods: We performed a retrospective cohort study on 69 infantile brain tumors at a single institution from January 2008 to June 2023. Outcomes were assessed as early mortality (within 30 days following surgery) to evaluate the risk of early surgery in congenital brain tumors.

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Background: This study aims to elucidate clinical features, therapeutic strategies, and prognosis of pineal parenchymal tumors (PPT) by analyzing a 30-year dataset of a single institution.

Methods: We reviewed data from 43 patients diagnosed with PPT at Seoul National University Hospital between 1990 and 2020. We performed survival analyses and assessed prognostic factors.

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Article Synopsis
  • This study investigates the effectiveness of nanopore sequencing for 16S rRNA analysis in diagnosing brain abscesses compared to traditional culture methods.
  • The researchers analyzed pus samples from 27 patients and found that 16S sequencing identified a significantly higher proportion of anaerobic bacteria (75%) and polymicrobial infections (40%) than culture (32% and 8%, respectively).
  • The findings suggest that 16S sequencing is a more sensitive and faster method for detecting pathogens, including rare ones, aiding in the diagnosis of space-occupying lesions in patients with brain abscesses.
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Objective: Rathke's cleft cyst (RCC) is the most commonly encountered pituitary incidentaloma in children. Because RCC is not frequently diagnosed in children, there are few reports on pediatric RCCs. The natural course of the disease and appropriate treatments are still obscure.

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Background: The prognosis of moyamoya disease (MMD) in young children (younger than 4 years) is worse than that of older adults. The effectiveness of surgery is still inconclusive.

Objective: To evaluate long-term outcomes after indirect bypass in young children with MMD.

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When sodium-glucose cotransporter-2 (SGLT2) inhibitors were first introduced a decade ago, no one expected them to have substantial effects beyond their known glucose-lowering effects, until the emergence of evidence of their robust renal and cardiovascular benefits showing that they could attenuate progression of kidney disease, irrespective of diabetes, as well as prevent the development of acute kidney injury. Still, the precise and elaborate mechanisms underlying the major organ protection of SGLT2 inhibitors remain unclear. SGLT2 inhibitors inhibit the reabsorption of sodium and glucose in the proximal tubule of the kidney and then recovers tubuloglomerular feedback, whereby SGLT2 inhibitors reduce glomerular hyperfiltration.

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Background: Fabry nephropathy is characterized by a deficiency of lysosomal alpha-galactosidase A, which results in proteinuria and kidney disease. The ineffectiveness of enzyme replacement therapy (ERT) for severe kidney failure highlights the need for early detection and meaningful markers. However, because the diagnosis and treatment of Fabry disease can vary according to the expertise of physicians, we evaluated the opinions of Korean specialists.

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Management of metabolic acidosis is crucial for preserving bone, muscle, and renal health, as evidenced by the results of several interventional studies conducted on patients with chronic kidney disease (CKD). Considering the continuity of CKD progression over time, it is reasonable to deduce that a subclinical form of metabolic acidosis may exist prior to the manifestation of overt metabolic acidosis. Covert H retention with normal serum bicarbonate level in patients with CKD may result in maladaptive responses that contribute to kidney function deterioration, even in the early stages of the disease.

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Obesity is associated with high risk of mortality globally because obesity is associated with development of diseases such as diabetes, dyslipidemia, fatty liver disease, hypertension, and cancer. The present study aimed to identify the mechanism of action related to the anti‑obesity activity of root (PLR) based on its effects on lipid droplet accumulation. The inhibitory activity on lipid accumulation was analyzed through Oil‑Red O staining, and the changes in levels of lipid accumulation‑related proteins were analyzed using Western blot analysis.

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Fluid overload secondary to loss of functional nephron mass can elevate blood pressure, which is characteristic of hypertension shown in chronic kidney disease (CKD). Therefore, it is logical to use diuretics at appropriate dose to lower blood pressure in patients with CKD and hypertension. Despite the theoretical background on the use of diuretics in CKD, there have been no definitive data on the effectiveness or safety of diuretics as first-line therapy for the management of hypertension in patients with CKD.

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Objective: Endothelial colony-forming cells (ECFCs) have been reported to play an important role in the pathogenesis of moyamoya disease (MMD). We have previously observed stagnant growth in MMD ECFCs with functional impairment of tubule formation. We aimed to verify the key regulators and related signaling pathways involved in the functional defects of MMD ECFCs.

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