Acute lung injury (ALI) is a diffuse inflammatory pulmonary damage caused by excessive ROS that break the coordination of normal physiological structures and functions. Hypochlorous acid (HOCl), one kind of ROS, is a hopeful biological marker for inflammation-related diseases. Therefore, the excessive generation of HOCl might be a significant reason for oxidative injury in ALI. Herein, we developed a fluorescent probe, namely BCy-HOCl, for quantitatively monitoring and visualizing HOCl in living cells and in vivo. The probe BCy-HOCl displayed a significant fluorescence signal enhancement towards HOCl with excellent selectivity and sensitivity. The variation of HOCl in the ALI cell model and ALI mouse model was evaluated with BCy-HOCl to clarify the relationship between ALI and HOCl. Our results verified that the HOCl levels conspicuously increased with the severity of the ALI. Thus, HOCl is likely to play a crucial part in the process of ALI, which will probably provide a new strategy for its treatment.
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http://dx.doi.org/10.1039/d0tb01969k | DOI Listing |
Toxics
January 2025
Key Laboratory of Feed Biotechnology, the Ministry of Agriculture and Rural Affairs of the People's Republic of China, Beijing 100081, China.
Hypochlorous acid has been attempted as an additive to animal drinking water in practical animal farming processes for water microbial quality control. Despite its potential, there is still a knowledge gap concerning the effects of hypochlorous acid on both poultry growth performance and gut microbial load. To address this gap, an animal study was conducted using flow cytometry to quantify the age-related microbial load in broiler manure and gut contents.
View Article and Find Full Text PDFBioorg Chem
January 2025
Cardiovascular Center, The First Hospital of Jilin University, Changchun 130021, China. Electronic address:
The assessment of early atherosclerosis (AS) via fluorescence imaging is crucial for advancing early diagnosis research. Abnormal inflammation biomarkers, including hypochlorous acid (HClO) and viscosity within mitochondria, have been closely linked to the pathogenesis of AS. However, current fluorescent probes predominantly rely on unimodal imaging that targets a single biomarker and lacks mitochondrial specificity, which can result in potential false signal readouts due to the complex intracellular environment.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
State Key laboratory of Chemical Safety, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China. Electronic address:
Fluorescent probes for in vivo hypochlorous acid (HClO) imaging often face challenges of low selectivity and high cytotoxicity, largely due to poor analyte recognition and water-insoluble aromatic skeletons. To address this, we synthesized fluorescein hydrazide by introducing a spiro-lactam unit into fluorescein, which offers high emission intensity and molar absorption. The five-membered heterocycle in fluorescein hydrazide is selectively disrupted by HClO, enhancing the conjugated system and electron delocalization of the fluorophore, resulting in highly sensitive fluorescence detection of HClO.
View Article and Find Full Text PDFLasers Med Sci
January 2025
Department of Endodontics, Faculty of Dentistry, Gülhane Faculty of Dentistry, University of Health Sciences, Ankara, Turkey.
Objective: This study aims to quantitatively compare the effects of standard needle irrigation (SNI), passive ultrasonic irrigation (PUI), EDDY, photon-initiated photoacoustic streaming (PIPS), and shock wave-enhanced emission photoacoustic streaming (SWEEPS) on the apical extrusion of irrigation solutions in teeth with severe canal curvature.
Materials And Methods: Seventy-five teeth with a single root and canal, and curvature angles ranging from 20° to 40°, were selected for this study. Root canal curvatures were measured from buccolingual and mesiodistal radiographs using ImageJ software (version 1.
J Food Sci
January 2025
Department of Nutrition and Food Science, University of Maryland, College Park, Maryland, USA.
We evaluated the antimicrobial performance of sodium hypochlorite (NaOCl) and peracetic acid (PAA) during washing of baby spinach in water of varying levels of organic load, as measured by its chemical oxygen demand (COD). Escherichia coli TVS353 was spot inoculated onto one unwashed leaf. Sanitizers were added into water with preadjusted COD (300 or 2500 ppm) to achieve concentrations from 20 to 80 ppm.
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