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Converting Fe-N-C single-atom catalyst to a new FeNxSey cluster catalyst for proton-exchange membrane fuel cells.
Angew Chem Int Ed Engl
January 2025
Tianjin University, School of Materials science and engineering, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, CHINA.
Fe-N-C catalyst is the most promising alternative to platinum catalyst for proton-exchange membrane fuel cells (PEMFCs), however its high performance cannot be maintained for a long enough time in device. The construction of a new Fe coordination environment that is different from the square-planar Fe-N 4 configuration in Fe-N-C catalyst is expected to break current stability limits, which however remains unexplored. Here, we report the conversion of Fe-N-C to a new FeNxSey catalyst, where the Fe sites are three-dimensionally (3D) co-coordinated by N and Se atoms.
View Article and Find Full Text PDFNewly developed DWI hyperintensities and changes in cerebral blood flow after carotid stent placement for unilateral symptomatic carotid artery stenosis.
Medicine (Baltimore)
January 2025
Department of Neurology, Haiyan People's Hospital Jiaxing, Zhejiang, China.
This study aimed to evaluate changes in cerebral blood flow and perioperative outcomes in patients with unilateral symptomatic carotid artery stenosis before and after carotid artery stenting (CAS), providing insights to guide surgical decision-making. Ninety-six patients with moderate to severe unilateral symptomatic carotid artery stenosis (>50%) admitted to the Neurology Department of the Second Affiliated Hospital of Zhejiang University from June 2023 to April 2024 were included. All patients underwent CAS and magnetic resonance imaging, including diffusion-weighted imaging (DWI) and 3D quasi-continuous arterial spin-labeled perfusion imaging, within 3 days preoperatively and on the third postoperative day.
View Article and Find Full Text PDFAn iliac arteriovenous fistula associated with leg swelling 2 years after the removal of a hemodialysis catheter: A case report.
Medicine (Baltimore)
January 2025
The Third Hospital of Mianyang, Sichuan Mental Health Center, Mianyang, Sichuan, China.
Rationale: Temporary central venous catheters are commonly used for patients who require emergency hemodialysis. In rare instances, this procedure can result in a very serious complication known as arteriovenous fistula (AVF). Although some cases of femoral arteriovenous fistula have been reported previously in the literature; however, the incidence of iliac AVF precipitated by a hemodialysis catheter is exceedingly uncommon.
View Article and Find Full Text PDFNegative prognostic significance of primary cilia and cytoplasmic β-catenin expression in non-small cell lung cancer.
Neoplasma
December 2024
Department of Oncology, First Faculty of Medicine, Charles University and Thomayer University Hospital, Prague, Czech Republic.
The objective of this study was to investigate the prognostic significance of the frequency of primary cilia (PC) and β-catenin expression in 218 patients (pts) with non-small cell lung cancer (NSCLC), including 125 pts with adenocarcinoma and 93 pts with squamous cell carcinoma. In the whole group of 218 pts with NSCLC, overall survival (OS) was significantly inferior among pts with present PC than without PC (p=0.024) and with higher cytoplasmic β-catenin expression (25-75%) than with lower cytoplasmic β-catenin expression (<25%) (p=0.
View Article and Find Full Text PDFRadiotherapy for oligoprogressive disease in non-small cell lung cancer treated with pembrolizumab in first-line setting: a retrospective study.
Transl Lung Cancer Res
December 2024
Department of Medical Oncology, Assistance Publique - Hôpitaux de Paris (AP-HP), Pitié-Salpêtrière Hospital, Institut Universitaire de Cancérologie, CLIP² Galilée, Paris, France.
Background: Oligoprogression (OP) is common in patients with metastatic non-small cell lung cancer (mNSCLC) treated with immune checkpoint inhibitors (ICIs). This study aims to assess the benefit and the safety profile of ablative radiotherapy (RT) for OP in mNSCLC treated with pembrolizumab in first-line setting.
Methods: We retrospectively analyzed records of all consecutive mNSCLC patients who underwent treatment with pembrolizumab (+/- chemotherapy) in first-line setting and developed an OP treated with ablative RT while continuing pembrolizumab, in a French Hospital from 2019 to 2022.
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