13,268 results match your criteria: "Ajou University; jykwak@ajou.ac.kr.[Affiliation]"

Trauma during pregnancy poses a potentially tragic risk to both the fetus and mother, making its management particularly challenging. Here, we present the case of a 35-year-old woman at 34 weeks and 2 days gestation who was in a motor vehicle accident and subsequently suffered placental abruption and underwent an emergency cesarean section. We also present a review of traumatic placental abruption and its epidemiology.

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Minimally invasive surgery versus open surgery in advanced stage endometrial cancer.

J Obstet Gynaecol Res

January 2025

Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Ajou University School of Medicine, Suwon, Republic of Korea.

Aim: Staging surgery in early stage endometrial cancer has been shown to be feasible and safe with minimally invasive surgery (MIS) in many previous studies. However, there is limited literature on MIS's safety in advanced stages. This study aims to identify factors associated with survival in stage III endometrial cancer and investigate survival differences based on surgical approach.

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Article Synopsis
  • Gastroesophageal Reflux Disease (GERD) leads to stomach contents flowing back into the esophagus, which may also affect ear health through the Eustachian tube.
  • A study of over 669,000 South Korean patients found a strong link between GERD and the occurrence of tinnitus, suggesting that the ear issues could be related to reflux problems.
  • However, treating GERD with proton pump inhibitors did not significantly lower the chances of developing tinnitus in these patients.*
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Immunohistochemistry (IHC) is the common companion diagnostics in targeted therapies. However, quantifying protein expressions in IHC images present a significant challenge, due to variability in manual scoring and inherent subjective interpretation. Deep learning (DL) offers a promising approach to address these issues, though current models require extensive training for each cancer and IHC type, limiting the practical application.

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Background: Alopecia areata (AA) is characterized by hair loss on the scalp and body, significantly impacting patients' quality of life based on its severity.

Objective: This study aims to identify crucial factors influencing the perception of severe AA from the patients' viewpoint.

Methods: A web-based survey was conducted among AA patients attending dermatology departments at 21 university hospitals in Korea.

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Purpose: In chronic spontaneous urticaria (CSU), autoimmune thyroid disease is the most common autoimmune comorbidity, and many CSU patients have immunoglobulin (Ig)E or IgG autoantibodies to thyroid peroxidase (TPO). It remains unclear how anti-TPO IgE and IgG autoantibodies are linked to each other and are associated with CSU features, activity, and therapeutic responses.

Methods: CSU patients (n = 146, 92 females, mean age 42.

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Purpose: Despite the emerging biologics, biomarkers and treatment options for asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) are still limited, requiring further research.

Methods: We enrolled 378 ACO patients from a multicenter real-world asthma cohort in Korea and compared the clinical characteristics, lung function, and exacerbation between type 2 (T2)-high and T2-low groups. We used the following comparisons: 1) low vs.

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Can Vaccinations Trigger or Exacerbate Chronic Urticaria?

Allergy Asthma Immunol Res

November 2024

Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.

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Naegleria fowleri, a brain-eating amoeba, thrives in lakes and rivers with aquatic vegetation and causes primary amoebic meningoencephalitis (PAM) in humans. Most recently, it has become such a serious problem that N. fowleri was detected in tap water in Houston, USA.

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Article Synopsis
  • The study examined breast cancer characteristics in postmenopausal patients who had undergone hormone replacement therapy (HRT), using data from 17,355 patients.
  • Patients with a history of HRT (20.7% of the sample) had earlier-stage cancer, lower tumor grades, and better surgical options compared to those who never received HRT.
  • Prognosis was also more favorable for the HRT group, with a 5-year survival rate of 93.9%, largely linked to increased screening, higher BMI, and longer HRT duration.
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Background: Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.

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Background: Posterior long-segment instrumentation (PLSI) enables the stable repair of thoracolumbar fractures (TLFx) and is thus widely used. However, patients with highly unstable fractures may experience implant failure and related complications (e.g.

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A shape-reconfigurable electronic composite for stimulus customizable detection neutral plane shifting.

Mater Horiz

December 2024

Multiscale Bioinspired Technology Lab, Department of Mechanical Engineering, Ajou University, 206 World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16499, Republic of Korea.

Three-dimensional (3D) sensors selectively measure the applied force in a particular direction through the designed shape. However, such a fixed sensor design incurs a relatively low sensitivity and narrow measurement range to forces applied from other directions. Here, we report a shape-reconfigurable electronic composite based on a stiffness-tunable polymer and a crack-based strain sensor.

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Cellular senescence, recognized as a key hallmark of aging, leads to the accumulation of senescent cells in various tissues over time. While the detrimental effects of these cells on age-related pathological conditions are well-documented, there is still limited information about how senescent cells are distributed in normal tissues of both young and aged organs. Our research indicates that fully senescent p16 cells are rarely identified in the parenchyma of organic tissues and in the stromal cells crucial for structural maintenance, such as fibroblasts and smooth muscle cells.

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Recently, significant research efforts have been made to enhance ultrasonic testing (UT) by employing artificial intelligence (AI). However, collecting an extensive amount of labeled data across various testing environments to train the AI model poses significant challenges. Moreover, conventional UT typically focuses on detecting deep-depth defects, which limits the effectiveness of such methods in detecting near-surface defects.

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Body fat distribution is closely related to cardiovascular disease than the amount of total body fat itself. The epicardial adipose tissue (EAT) measured by transthoracic echocardiography represents central obesity. We hypothesized that the gender affected the link between EAT thickness and body fat distribution.

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Aim: The purpose of this study was to summarise the current state of the science on diabetes mellitus education programs for nursing students.

Design: A systematic review and meta-analysis.

Methods: Eligible studies were identified by searching PubMed, EMBASE, CINAHL, and Cochrane Library databases.

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Highly Sensitive and Stable In Situ Acetylene Detection in Transformer Oil Using Polyimide-Embedded Carbon Nanotubes.

Adv Mater

November 2024

Department of Nano Engineering, Department of Nano Science and Technology, SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.

Article Synopsis
  • - This study introduces a cutting-edge acetylene gas sensor using carbon nanotubes (CNTs) embedded in polyimide (PI) for real-time monitoring of transformer oils, overcoming limitations of traditional sensors that analyze gas after extraction.
  • - The sensor’s innovative design protects the CNTs from damage and ensures reliable performance for over 6 months, with sensitivity boosted by gold nanoparticles, achieving a notable response rate of 10.5% at 30 ppm and quick recovery times.
  • - Integrating a CNT-PI heater, the sensor maintains a stable operating temperature and shows excellent durability, performing well even after 10,000 bending cycles, making it suitable for industrial transformer applications.
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Challenges and considerations in multi-epitope vaccine design surrounding toll-like receptors.

Trends Pharmacol Sci

December 2024

Department of Physiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea; Ajou Translational Omics Center (ATOC), Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, Republic of Korea; Department of Biomedical Science, Graduate School, Ajou University, Suwon 16499, Republic of Korea. Electronic address:

Epitope-based peptide vaccines elicit targeted immune responses, making them effective for diseases requiring focused immune activation, such as targeting cancer-associated antigens. Strategies like peptide cocktails and mRNA-based epitope vaccines have revolutionized the field; however, the term 'multi-epitope peptide vaccine' has been overextended, especially concerning the use of toll-like receptors (TLRs), their ligands, and peptide linkers. TLRs are often conflated with T cell receptors (TCRs) and B cell receptors (BCRs), which recognize immunogenic peptides within vaccines.

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Risk of Contrast-Induced Acute Kidney Injury in Computed Tomography: A 16 Institutional Retrospective Cohort Study.

Invest Radiol

December 2024

From the Department of Biomedical Informatics, Ajou University Graduate School of Medicine, Suwon, South Korea (B.C., S.S., S.G., B.P., R.W.P.); Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea (S.H., S.H.C., S.H.P.); Department of Radiology, Mayo Clinic Rochester, Rochester, MN (J.S.M.); Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea (W.-M.C.); Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea (J.B.L.); Department of Neurology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX (E.A.L.); Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, South Korea (B.P.); Department of Nephrology, Ajou University School of Medicine, Suwon, South Korea (H.J.C.); Department of Radiology, Keimyung University, Dongsan Hospital, Daegu, South Korea (B.J.K.); Department of Endocrinology and Metabolism, Kyung Hee University College of Medicine, Seoul, South Korea (S.Y.R.); Department of Radiology, Biomedical Research Institute, Pusan National University Hospital, Pusan National University School of Medicine, Busan, South Korea (S.B.H.); Division of Cardiology, Incheon Sejong Hospital, Incheon, South Korea (K.-H.K.); Department of Radiology, School of Medicine, Catholic University of Daegu, South Korea (Y.H.L.); and Department of Radiology, Soonchunhyang University College of Medicine, Cheonan Hospital, Cheonan-si, Chungcheongnam-do, South Korea (S.S.K.).

Objectives: Concern about contrast-induced acute kidney injury (CI-AKI) may delay the timely administration of contrast media for computed tomography (CT). The precise causative effect of iodinated contrast media on CI-AKI and its relevant risk factors remains an area of ongoing investigation. Therefore, this study aimed to determine the risk of CI-AKI following contrast-enhanced CT and its predisposing risk factors.

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encodes the alpha subunit of the heterotrimeric Go protein. Despite being the most abundant G protein at synapses, the role of Go in the brain remains unclear, primarily because of the high mortality associated with developmental and epileptic encephalopathy (DEE) 17 in mutated animals. Here, we conducted proteomic analyses with a brain synaptosomal fraction to investigate the Go-interactome and then generated a non-DEE model using mice to selectively knockout (KO) the presynaptic Gαo within cerebellum.

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Background And Objectives: The Fractional Flow Reserve and Intravascular Ultrasound-Guided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.

Methods: A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).

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The circadian clock, an internal time-keeping system orchestrates 24 hr rhythms in physiology and behavior by regulating rhythmic transcription in cells. Astrocytes, the most abundant glial cells, play crucial roles in CNS functions, but the impact of the circadian clock on astrocyte functions remains largely unexplored. In this study, we identified 412 circadian rhythmic transcripts in cultured mouse cortical astrocytes through RNA sequencing.

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