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Inhibition of nitric oxide synthase transforms carotid occlusion-mediated benign oligemia into large cerebral infarction.
Theranostics
January 2025
Department of neurology, Dongguk University Ilsan Hospital, Goyang 10326, Republic of Korea.
It remains unclear why unilateral proximal carotid artery occlusion (UCAO) causes benign oligemia in mice, yet leads to various outcomes (asymptomatic-to-death) in humans. We hypothesized that inhibition of nitric oxide synthase (NOS) both transforms UCAO-mediated oligemia into full infarction and expands pre-existing infarction. Using 900 mice, we i) investigated stroke-related effects of UCAO with/without intraperitoneal administration of the NOS inhibitor (NOSi) N-nitro-L-arginine methyl ester (L-NAME, 400 mg/kg); ii) examined the rescue effect of the NO-donor, molsidomine (200 mg/kg at 30 minutes); and iii) tested the impact of antiplatelet medications.
View Article and Find Full Text PDFEarly Diagnosis of Candidemia in the Intensive Care Unit by Clinical and Molecular Methods: A Prospective Observational Study.
Infect Dis Clin Microbiol
December 2024
Department of Infectious Diseases and Clinical Microbiology, İstanbul University-Cerrahpaşa, Cerrahpaşa School of Medicine, İstanbul, Türkiye.
Objective: Early diagnosis and treatment of candidemia in intensive care units (ICUs) remain a significant challenge globally because of the lack of well-established non-culture-based diagnostic methods. This study aimed to evaluate risk factors in critically ill ICU patients, develop a unique score, and create a real-time polymerase chain reaction (PCR) assay for the early diagnosis of candidemia.
Materials And Methods: The study was conducted in three phases: 1) Retrospective analysis of 100 ICU patients from İstanbul University-Cerrahpaşa between January 2017 and December 2018 to identify risk factors for invasive candidiasis, 2) development of Cerrahpaşa score based on these findings, and 3) prospective evaluation of 75 ICU patients, applying the newly created Cerrahpaşa score and implementing a rapid PCR-based test on whole blood samples.
Infections and Factors Associated with Recurrence.
Infect Dis Clin Microbiol
December 2024
Department of Medical Microbiology, Giresun University School of Medicine, Giresun, Türkiye.
Objective: is one of the leading causes of antibiotic-associated diarrhea. Recurrent infection (rCDI) is significant because of prolonged hospital stays, morbidity, and additional costs. Our study aimed to examine the characteristics of infections and investigate factors associated with recurrence.
View Article and Find Full Text PDFClinical and immunological features in patients with neuroimmune complications of COVID-19 during Omicron wave in China: a case series.
Front Immunol
January 2025
Department of Neurology, Huashan Hospital, Fudan University and Institute of Neurology, Fudan University, National Center for Neurological Disorders, Shanghai, China.
Purpose: This study aimed to present clinical and immunological features in patients with neuroimmune complications of COVID-19 during Omicron wave in China.
Methods: Patients with neuroimmune complications associated with COVID-19 were retrospectively analyzed in Huashan Hospital from December 2022 to April 2023, during the widespread prevalence of Omicron variants in China. Demographic information, symptoms, electrophysiological findings, cerebrospinal fluid(CSF) test results and immunological markers, Magnetic Resonance Imaging(MRI) characteristics, treatment strategies and outcomes of these patients were reviewed and analyzed.
Sepsis Diagnosis Based on a Parylene Matrix Chip Using LPC16:0 as a Biomarker in Comparison with Colorimetry of Total Phospholipid.
ACS Appl Bio Mater
January 2025
Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, South Korea.
For the medical diagnosis of sepsis, it is crucial to differentiate infectious inflammation from noninfectious symptoms to prevent acute aggravation. Herein, a diagnosis for early stage sepsis was performed using LPC 16:0 and total phospholipids as small molecular biomarkers. The measurement of LPC 16:0 was conducted using a parylene matrix chip, which was developed to effectively detect small molecules in laser desorption/ionization mass spectrometry (LDI-MS).
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