776 results match your criteria: "Boramae Hospital[Affiliation]"

Context: Fragility fractures in young adults present significant clinical challenges due to the limited evidence on the effectiveness of bisphosphonates in preventing subsequent fractures.

Objective: To evaluate the effectiveness of bisphosphonate therapy in reducing the fracture risk among premenopausal women with a history of osteoporotic fractures.

Design: A population-based retrospective cohort study was conducted using data from the National Health Insurance Service-National Sample Cohort (NHIS-NSC) in South Korea, covering the years 2003 to 2014.

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Background: Colorectal carcinomas (CRCs) with caudal-type homeobox 2 (CDX2) loss are recognized to pursue an aggressive behavior but tend to be accompanied by a high density of tumor-infiltrating lymphocytes (TILs). However, little is known about whether there is an interplay between CDX2 loss and TIL density in the survival of patients with CRC.

Methods: Stage III CRC tissues were assessed for CDX2 loss using immunohistochemistry and analyzed for their densities of CD8 TILs in both intraepithelial (iTILs) and stromal areas using a machine learning-based analytic method.

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Background: Keloid is a dermal fibrotic disorder characterised by excessive extracellular matrix production by fibroblasts. Despite the significance of mechanostimulation in fibrotic diseases, its association with keloid pathophysiology or treatment remains unexplored.

Objective: We investigated the role of mechanical force in keloid formation and elucidated the significance of Rho-associated coiled-coil-containing kinase 1 (ROCK1) as a mechanoresponsive target for keloid treatment.

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Article Synopsis
  • A phase II clinical trial was conducted to assess the effectiveness of imatinib in treating PDGFRA/B-negative hypereosinophilic syndromes (HES), with 32 patients receiving doses ranging from 100-400 mg daily.
  • The study found a haematological response rate of 46.9%, with 18.8% achieving a complete response, and the median time to this response was 1.5 months.
  • Genetic analysis revealed that while there were no differences in non-silent mutations between responders and non-responders, specific gene fusions were linked to sustained responses, suggesting imatinib could be a viable treatment alongside proper biomarkers.
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  • Skin and soft-tissue defects in the lower legs can be challenging for surgeons when underlying structures are exposed, requiring more complex solutions like flap surgery; the bipedicled flap is highlighted as a more reliable option with a high success rate and minimal failures.* ! -
  • A study reviewing 10 cases from 2013 to 2020 included a balanced mix of male and female patients, assessing flap viability, complications, and patient satisfaction on a 15-point scale after surgeries for various causes of defects.* ! -
  • Results showed all flaps were successful with no complications, and patient satisfaction averaged 11.5 out of 15, indicating that the bipedicled flap is an effective method for soft-tissue reconstruction
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Background/aim: Predicting lymph node metastasis (LNM) in early gastric cancer (EGC) is crucial for making treatment decisions. This study aimed to confirm risk factors for LNM and identify novel auxiliary biomarkers for predicting LNM in EGC.

Patients And Methods: We established a training set, comprising 63 patients with LNM-EGC and 274 patients with non-LNM EGC, and a test set, comprising 19 patients with LNM-EGC and 146 non-LNM EGC.

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The pathogenesis of myelocytomatosis oncogene (MYC) and B-cell lymphoma 2 (BCL2) double-expressor diffuse large B-cell lymphoma (DE-DLBCL) remains unclear. To investigate how MYC and BCL2 contribute to tumor aggressiveness, we analyzed tumors from 14 patients each with DE-DLBCL and non-DE-DLBCL using whole transcriptome sequencing. Validation was performed using publicly available data sets, tumor tissues from 126 patients, DLBCL cell lines, and a syngeneic mouse lymphoma model.

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The expression of PD-L1 on tumor cells (TC) is used as an immunotherapy biomarker in lung cancer, but heterogeneous intratumoral expression is often observed. To better understand heterogeneity in the lung cancer tumor microenvironment, we performed proteomic and whole-transcriptomic digital spatial profiling analyses of TCs and immune cells (IC) in spatially matched areas based on tumor PD-L1 expression and the status of the immune microenvironment. We validated our findings using IHC, data from The Cancer Genome Atlas, and immunotherapy cohorts.

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How to Achieve Further Progress of Journal of Korean Neurosurgical Society (JKNS) - Improve the Impact Factor (IF) and Maintain It Continuously.

J Korean Neurosurg Soc

September 2024

Editor in Chief, Journal of Korean Neurosurgical Society; Department of Neurosurgery, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea.

Journal of Korean Neurosurgical Society (JKNS), which has a history of over 50 years, has made great progress recently. In order to continue this progress in the future, we need to think about the strategies we will take and put them into practice. The progress of JKNS is an important opportunity to publicize the achievements of Korean neurosurgery to the world and for Korea to contribute further to global neurosurgery.

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Carotid-cavernous fistula (CCF) is a rare condition. However, it should be suspected when there are traumatic facial fractures, because if not diagnosed, it can lead to permanent damage such as blindness. Traumatic CCF often presents delayed symptoms, and delayed diagnosis without prompt treatment can lead to permanent injuries in optic and cranial nerves III, IV, V, and VI as well as intracranial hemorrhage.

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Background: With the progressive increase in aging populations, the use of opportunistic computed tomography (CT) scanning is increasing, which could be a valuable method for acquiring information on both muscles and bones of aging populations.

Objective: The aim of this study was to develop and externally validate opportunistic CT-based fracture prediction models by using images of vertebral bones and paravertebral muscles.

Methods: The models were developed based on a retrospective longitudinal cohort study of 1214 patients with abdominal CT images between 2010 and 2019.

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Limited impact of bacterial virulence on early mortality risk factors in Acinetobacter baumannii bacteremia observed in a Galleria mellonella model.

Sci Rep

June 2024

Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Bundang Hospital, 82 Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, Republic of Korea.

Article Synopsis
  • Acinetobacter baumannii (AB) is increasingly recognized as a serious pathogen affecting severely ill patients, but the reasons for early mortality (EM) following AB bacteremia remain unclear.
  • A study assessed the virulence of AB strains from 138 patients with bacteremia and found that 34.8% died within 7 days, with the Pitt bacteremia score being the only significant risk factor for EM.
  • The research concluded that the virulence of AB did not independently influence EM in patients, suggesting that patient characteristics play a more critical role.
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This study aimed to identify plasma proteins that could serve as potential biomarkers for microbial invasion of the amniotic cavity (MIAC) or intra-amniotic inflammation (IAI) in women with preterm labor (PTL). A retrospective cohort comprised singleton pregnant women with PTL (24-34 weeks) who underwent amniocentesis. Pooled plasma samples were analyzed by label-free liquid chromatography-tandem mass spectrometry for proteome profiling in a nested case-control study (concomitant MIAC/IAI cases vs.

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Background: Long-term follow-up is essential to evaluate the impact of polymer degradation in drug-eluting stents (DES).

Aims: We aimed to compare durable-polymer DES (DP-DES) and biodegradable-polymer DES (BP-DES) during a 3-year follow-up to evaluate the entire period of polymer resolution (before, during, and after degradation).

Methods: The HOST REDUCE POLYTECH RCT Trial was a randomised clinical trial enrolling patients with acute coronary syndrome (ACS) and comparing the efficacy and safety of DP-DES and BP-DES.

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Aim: The aim of this study was to compare the clinicopathological and oncological characteristics of sporadic colorectal cancer (CRC) between young and elderly patients without any genetic mutations that cause hereditary CRC.

Method: In this cross-sectional, retrospective study conducted at three tertiary referral hospitals, we enrolled 1599 patients with CRC who underwent surgery between January 2010 and December 2017, including 157 young patients (age ≤ 40 years; yCRC) and 1442 elderly patients (age ≥ 70 years; eCRC). The clinicopathological and oncological outcomes were compared between the two groups.

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Article Synopsis
  • The study examined trends in degenerative lumbar spinal surgeries in South Korea during the first year of the COVID-19 pandemic, focusing on three epidemic waves in 2020.
  • Surgeries decreased after the first two waves, but patient numbers rebounded in later months, with the third wave not impacting surgical volumes.
  • Despite a reduction in average length of hospital stay and a rise in costs, the study found decreased transfer and readmission rates, suggesting that surgical care adapted well during the pandemic.
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Introduction: Fine-needle aspiration cytology (FNAC) specimens are widely utilized for the diagnosis and molecular testing of various cancers. We performed a comparative proteomic analysis of three different sample types, including breast FNAC, core needle biopsy (CNB), and surgical resection tissues. Our goal was to evaluate the suitability of FNAC for in-depth proteomic analysis and for identifying potential therapeutic biomarkers in breast cancer.

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Editors' Pick in May 2024.

J Korean Neurosurg Soc

May 2024

Editor in Chief, Journal of Korean Neurosurgical Society; Department of Neurosurgery, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea.

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Concomitant expression patterns of CDX2 and SATB2 as prognostic factors in stage III colorectal cancers.

Ann Diagn Pathol

August 2024

Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea. Electronic address:

CDX2 and SATB2 are often used as biomarkers for identification of colorectal origin in primary or metastatic adenocarcinomas. Loss of CDX2 or SATB2 expression has been associated with poor prognosis in patients with colorectal cancer (CRC). However, little is known regarding clinicopathological features, including prognosis, of CRCs with concomitant loss of CDX2 and SATB2.

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Background: To predict poor overall survival (OS) in pancreatic adenocarcinoma (PAC) who underwent FOLFIRINOX (5-fluorouracil/leucovorin/irinotecan/oxaliplatin) using clinical and computed tomography (CT) findings.

Methods: A total of 189 patients with PAC who received FOLFIRINOX were retrospectively included. Two reviewers assessed CT findings and resectability based on National Comprehensive Cancer Network guidelines.

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Background: The screening tools for sarcopenia are measuring calf circumference, SARC-F or SPPB. However, not all of these tools have high sensitivity, specificity, and low margins of error. This research investigates potential of 3D anthropometry of the lower extremities on screening of sarcopenia.

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Purpose: To determine whether various inflammatory-, angiogenic/anti-angiogenic-, and extracellular matrix remodeling-associated proteins in plasma, alone or in combination with conventional blood-based markers, can predict intra-amniotic inflammation and/or microbial invasion of the amniotic cavity (IAI/MIAC) in women with spontaneous preterm labor (PTL).

Methods: A total of 193 singleton pregnant women with PTL (23-33 weeks) were included in this retrospective cohort study. Plasma samples were obtained at the time of amniocentesis.

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A CT-based Deep Learning Model for Predicting Subsequent Fracture Risk in Patients with Hip Fracture.

Radiology

January 2024

From the Interdisciplinary Program in Bioengineering (Y.K., Y.S.) and Integrated Major in Innovative Medical Science (Y.K.), Seoul National University Graduate School, Seoul, Republic of Korea; Department of Radiology (Y.K.), Transdisciplinary Department of Medicine & Advanced Technology (Y.G.K., B.W.K., Y.S.), and Department of Internal Medicine (J.H.K., C.S.S.), Seoul National University Hospital, Seoul, Republic of Korea; Departments of Orthopaedic Surgery (J.W.P., Y.K.L.) and Internal Medicine (S.H.K.), Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang gu, Seongnam, Republic of Korea; Departments of Medicine (Y.G.K.) and Internal Medicine (S.H.K., J.H.K., S.W.K., C.S.S.), Seoul National University College of Medicine, Seoul, Republic of Korea; and Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul, Republic of Korea (S.W.K.).

Article Synopsis
  • A study aimed to create a deep learning model to predict the risk of subsequent fractures in patients who recently experienced a hip fracture, by using digitally reconstructed radiographs from hip CT scans.
  • The research analyzed data from 1,012 patients for model development and validated it on another 468 patients, finding that the ensemble model significantly outperformed other existing prediction models in terms of accuracy over 2, 3, and 5 years.
  • Results indicated that the new model had higher probabilities of predicting fractures compared to both image-based models and a clinical model that considered established risk factors, showcasing its potential for improving patient care.
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Friend Leukemia Virus Integration 1 (FLI-1) is a member of E26 transformation-specific family of transcription factors that participates in hematopoietic and vascular endothelial cell development. Immunohistochemical detection of FLI-1 has been widely used to diagnose vascular tumors or, more evidently, Ewing's sarcoma. However, the expression pattern of FLI-1 in hematolymphoid neoplasms remains unclear.

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