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Urethrovesical calcified foreign body: Case report and literature review.
Int J Surg Case Rep
January 2025
IBN SINA University Hospital, Morocco.
Introduction: Calcified bladder foreign bodies are a rare yet clinically significant entity, often introduced voluntarily or in psychiatric contexts. Their diagnosis is frequently delayed due to nonspecific symptoms and the concealed circumstances of their introduction.
Case Presentation: We report the case of a 37-year-old man, treated for schizophrenia, presenting with chronic urinary symptoms.
Passive accumulation of alkaloids in inconspicuously colored frogs refines the evolutionary paradigm of acquired chemical defenses.
Elife
December 2024
Department of Chemistry and Physics, Indiana State University, Terre Haute, United States.
Understanding the origins of novel, complex phenotypes is a major goal in evolutionary biology. Poison frogs of the family Dendrobatidae have evolved the novel ability to acquire alkaloids from their diet for chemical defense at least three times. However, taxon sampling for alkaloids has been biased towards colorful species, without similar attention paid to inconspicuous ones that are often assumed to be undefended.
View Article and Find Full Text PDFSulfur isotope anomalies in coal combustion: Applications to the present and early Earth environments.
Proc Natl Acad Sci U S A
December 2024
Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093.
Article Synopsis
- * The findings link coal combustion sulfate aerosols to those found in urban environments and historic structures, highlighting their role in environmental damage and cultural heritage deterioration.
- * Understanding these sulfur isotope patterns is crucial for tracing sulfate sources, informing regulatory policies to combat air pollution, and addressing the ongoing challenges of coal energy production in climate science.
Mitigating the charging rush hour.
Heliyon
November 2024
Institute of Environmental Systems Sciences, University of Graz, Merangasse 18, Graz, 8010, Austria.
Great effort is put into making our mobility system more sustainable in order to mitigate climate change. One corner stone of this endeavour is the transition from internal combustion engines to electric engines for private cars. This transition, however, introduces new challenges, especially regarding the demand for electrical energy from renewable sources.
View Article and Find Full Text PDFN4-acetyl-sulfamethoxazole stone in a patient on chronic trimethoprim/sulfamethoxazole therapy: a case report and literature review.
Am J Clin Exp Urol
October 2024
Department of Urology, University of Florida Gainesville, FL 32610, USA.
Article Synopsis
- - The case report highlights a rare instance of urolithiasis (kidney stones) related to the metabolite N4-acetyl-sulfamethoxazole, following prolonged treatment with trimethoprim/sulfamethoxazole (TMP-SMX).
- - The patient had undergone a total colectomy and had a history of benign prostatic hypertrophy and chronic urinary retention, which contributed to metabolic conditions that increased the risk of stone formation.
- - The stones were analyzed using light microscopy and scanning electron microscopy (SEM), revealing rectangular-shaped crystals, marking the first time such crystals have been characterized using SEM.
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