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Characterizing the Transient Emission of Particles and Gases from a Single Puff of Electronic Cigarette Smoke.
Chem Res Toxicol
January 2025
Department of Chemical, Environmental, and Materials Engineering, University of Miami, Miami, Florida 33146, United States.
This study employed high-time-resolution systems to examine the transient properties of aerosols and gases emitted from electronic cigarette (EC) puffs. Using a fast aerosol sizer, we measured particle size distributions (PSDs) across various EC brands (JUUL, VUSE, VOOPOO), revealing sizes ranging from 5 to 1000 nm at concentrations of 10 to 10 cm. Most aerosols were found to be in the ultrafine range (below 100 nm), with JUUL-, VUSE-, and VOOPOO-producing aerosols with geometric mean sizes of 19.
View Article and Find Full Text PDFBiodegradable Vanadium-Based Nanomaterials for Photothermal-Enhanced Tumor Ferroptosis and Pyroptosis.
ACS Appl Mater Interfaces
January 2025
Molecular Diagnostic Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou First People's Hospital, Hangzhou 310006, China.
The designability and high reactivity of nanotechnology provide strategies for antitumor therapy by regulating the redox state in tumor cells. Here, we synthesize a kind of vanadium dioxide nanoparticle encapsulated in bovine serum albumin and containing disulfide bonds (VSB NPs) for photothermal-enhanced ferroptosis and pyroptosis effects. Mechanism studies show that disulfide bonds can effectively consume overexpressed glutathione (GSH) in the tumor microenvironment, leading to a decrease in glutathione peroxidase 4 (GPX4) activity.
View Article and Find Full Text PDFEchocardiographic evaluation of inferior vena cava diameters and collapsibility index in healthy children.
Arch Argent Pediatr
January 2025
Medical Research Unit in Reproductive Medicine, High Specialty Medical Unit, Hospital de Gineco Obstetricia N.° 4, Luis Castelazo Ayala, Instituto Mexicano de Seguro Social, Mexico City, Mexico.
Introduction. Echocardiographic measurement of inferior vena cava diameters and collapsibility index (IVCCI) can estimate right heart chamber function and intravascular volume status. Few reports of reference values for diameters and IVCCI in the pediatric population exist.
View Article and Find Full Text PDFRisk and Protective Factors for the Evolution of Subthreshold Depression During Early Adolescence.
J Adolesc Health
January 2025
Laboratory of Cognitive Control and Brain Healthy, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China; Department of Psychiatry, Zhujiang Hospital, Southern Medical University, Guangzhou, China. Electronic address:
Purpose: Subthreshold depression refers to a condition involving clinically significant depressive symptoms that fall short of meeting the diagnostic criteria for major depressive disorder (MDD). Identifying risk and protective factors associated with the progression of subthreshold depression in early life is essential for timely prevention. However, there is limited research on this topic among early adolescents.
View Article and Find Full Text PDFThe benefits and drawbacks of music in the operating room.
J Visc Surg
January 2025
Digestive Surgery, groupe hospitalier Diaconesses Croix Saint-Simon, 125, rue d'Avron, 75020 Paris, France.
Introduction: A significant proportion of surgeons listen to music in the operating room (MOR) during a surgical procedure. Over the last twenty years, this practice has been widely studied. The aim of this article is to analyze the effects of MOR on surgical performance, postoperative history and, more generally, on communication in the operating theater.
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