AI Article Synopsis
- Male Wistar rats exposed to 1000 ppm carbon monoxide for 3 hours showed quick blood CO removal and normal cytochrome oxidase activity right after exposure.
- During reoxygenation, cytochrome oxidase activity declined as carboxyhemoglobin levels dropped, suggesting potential mitochondrial loss due to lipid peroxidation.
- Findings indicate that cerebral cytochrome oxidase activity may not be directly inhibited in non-lethal carbon monoxide poisoning, despite previous lab findings showing inhibition in vitro.
Article Abstract
Male Wistar rats exposed to 1000 ppm carbon monoxide for 3 h showed a rapid removal of carbon monoxide from the blood, and a cerebral cytochrome oxidase activity within the control range immediately after the end of the exposure. The cytochrome oxidase activity decreased while carboxyhemoglobin concentration diminished during the reoxygenation period. The effect might have been caused through a loss of mitochondria by increased lipid peroxidation as cerebral glutathione concentration decreased and lysosomal acid proteinase activity increased in glial cell fractions. The present results seem to indicate that the cerebral cytochrome oxidase may not be specifically inhibited in non-lethal carbon monoxide poisoning despite its proven interactions in vitro.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0304-3940(80)90281-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Intracellular Co-Delivery of Carbon Monoxide and Nitric Oxide Induces Mitochondrial Apoptosis for Cancer Therapy.
Angew Chem Int Ed Engl
January 2025
University of Science and Technology of China, Department of Polymer Science and Engineering, 96 Jinzhai Road, 230026, , 230026, Hefei, CHINA.
Understanding the interplay between gasotransmitters is essential for unlocking their therapeutic potential. However, achieving spatiotemporally controlled co-delivery to target cells remains a significant challenge. Herein, we propose an innovative strategy for the intracellular co-delivery of carbon monoxide (CO) and nitric oxide (NO) gasotransmitters under clinically relevant wavelengths.
View Article and Find Full Text PDFFeMOFs/CO loading reduces NETosis and macrophage inflammatory response in PLA based cardiovascular stent materials.
Regen Biomater
December 2024
Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.
Modification of polylactic acid (PLA) is a promising strategy for the next generation of bioresorbable vascular stent biomaterials. With this focus, FeMOFs nanoparticles was incorporated in PLA, and then post loading of carbon monoxide (CO) was performed by pressurization. It showed FeMOFs incorporation increased hydrophilicity of the surface and CO loading, and CO release was sustained at least for 3 days.
View Article and Find Full Text PDFRemote carbon monoxide spillover improves tandem urea electrosynthesis.
Angew Chem Int Ed Engl
January 2025
Shaanxi Normal University, School of Materials and Energy, xian, CHINA.
Electrocatalytic urea synthesis from carbon dioxide (CO2) and nitrate (NO3-) offers a promising alternative to traditional industrial methods. However, current catalysts face limitations in the supplies of CO* and Nrelated* intermediates, and their coupling, resulting in unsatisfactory urea production efficiency and energy consumption. To overcome these challenges, we carried out tandem electrosynthesis approach using ruthenium dioxide-supported palladium-gold alloys (Pd2Au1/RuO2).
View Article and Find Full Text PDFContingency management (CM), an evidence-based behavioral strategy that rewards positive behavior change including tobacco cessation, is rarely offered to support people with HIV (PWH) who smoke. In this study, we explored perspectives among patients and research staff engaged in a multi-site randomized clinical trial involving clinical pharmacist-delivered CM within HIV clinics. Between February and September 2023, we conducted 1:1 interviews with 12 PWH randomized to receive CM and one focus group with 8 staff (i.
View Article and Find Full Text PDFAssessment of respiratory function in children after kidney transplantation.
Pediatr Nephrol
January 2025
Childhood Chronic Diseases Department, University Hospital of Nantes, 7 Quai Moncousu, 44093, Nantes, France.
Background: Severe respiratory complications following kidney transplantation have been reported, yet remain poorly understood in the pediatric population. This study aimed to document respiratory disease in this population.
Methods: At annual follow-ups, patients completed a respiratory symptoms questionnaire and underwent pulmonary function tests (PFTs).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!