Background: Nitrous oxide can cause disordered blood cell proliferation and lead to pancytopenia and altered immune function.
Case Report: A young pregnant female patient presented after binge nitrous oxide abuse with altered mental status and abnormal vital signs. From her initial assessment she was noted to have pancytopenia and was found to have megaloblastic, hyper-cellular changes in a subsequent bone marrow biopsy. This presentation was determined to be secondary to toxic effects after heavy use of nitrous oxide.
Conclusions: Nitrous oxide exposure, including use as an inhalant, over 12 hours can lead to bone marrow abnormalities such as megaloblastic hematopoiesis.
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http://dx.doi.org/10.12659/AJCR.883734 | DOI Listing |
Forensic Sci Med Pathol
January 2025
Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Nitrous oxide (NO) abuse is becoming increasingly popular worldwide. Moreover, the use of NO combined with other substances, such as alcohol, is also common. Accidental deaths associated with NO abuse are rare in forensic practice, with most fatal cases involving continuous inhalation equipment or exposure in a confined space.
View Article and Find Full Text PDFJ Phys Chem Lett
January 2025
Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China.
The photochemistry of nitrous acid (HONO) plays a crucial role in atmospheric chemistry as it serves as a key source of hydroxyl radicals (OH) in the atmosphere; however, our comprehension of the underlying mechanism for the photochemistry of HONO especially in the presence of water is far from being complete as the transient intermediates in the photoreactions have not been observed. Herein, we report the photochemistry of microsolvated HONO by water in a cryogenic N matrix. Specifically, the 1:1 hydrogen-bonded water complex of HONO was facially prepared in the matrix through stepwise photolytic O oxidation of the water complex of imidogen (NH-HO) via the intermediacy of the elusive water complex of peroxyl isomer HNOO.
View Article and Find Full Text PDFGlob Chang Biol
January 2025
Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, People's Republic of China.
Conservation agriculture, which involves minimal soil disturbance, permanent soil cover, and crop rotation, has been widely adopted as a sustainable agricultural practice globally. However, the effects of conservation agriculture practices on soil NO emissions and crop yield vary based on geography, management methods, and the duration of implementation, which has hindered its widespread scientific application. In this study, we assessed the impacts of no-tillage (NT), both individually and in combination with other conservation agriculture principles, on soil NO emissions and crop yields worldwide, based on 1270 observations from 86 peer-reviewed articles.
View Article and Find Full Text PDFWater Res X
May 2025
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China.
Widespread polyethylene terephthalate microplastics (PET MPs) have played unintended role in nitrous oxide (NO) turnovers (i.e., production and consumption) at wastewater treatment plants (WWTPs).
View Article and Find Full Text PDFJ Community Hosp Intern Med Perspect
January 2025
Internal Medicine Residency Program, Luminis Health Anne Arundel Medical Center, Annapolis, MD, USA.
Nitrous oxide (NO) has been increasingly used for recreational purposes due to its dissociative and euphoric properties. Exposure to NO results in the deactivation of in vivo vitamin B, leading to subsequent neurological sequelae due to vitamin B deficiency.7 Current management focuses on cessation of exposure and replacement therapy, yet patients may continue to suffer from permanent neurological damage.
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