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Toxicity of antimony in housefly after whole-life-cycle exposure: Changes in growth, development, redox homeostasis, mitochondrial function, and fecundity.
Ecotoxicol Environ Saf
January 2025
Key Laboratory of Zoological Systematics and Application, College of Life Sciences, Hebei University, Baoding 071002, China. Electronic address:
The increasing utilization of antimony (Sb) in manufacturing industries has led to the emergence of Sb contamination in the environment as a significant public health concern. To elucidate the toxicity of Sb and its mechanism of action, this study aimed to investigate the adverse effects of Sb on a cosmopolitan insect, housefly (Musca domestica), under a whole life cycle (from embryonic to adult stage) exposure through the examination of a suite of parameters, including biological, physiological, behavioral, and molecular endpoints. A range of Sb concentrations, including moderate contamination (0.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Purdue University, West Lafayette, IN, USA.
Background: Exposure to environmental chemicals such as lead (Pb) during vulnerable developmental periods and even in adult stage can result in adverse health outcomes later in life. Human cohort studies have demonstrated associations between Pb exposure and Alzheimer's Disease (AD) onset in later life which were further corroborated by findings from animal studies. The molecular pathway linking Pb exposure and increased AD risk, however, remains elusive.
View Article and Find Full Text PDFAn ultra-conserved poison exon in the Tra2b gene encoding a splicing activator is essential for male fertility and meiotic cell division.
EMBO J
January 2025
Newcastle University Biosciences Institute (NUBI), Central Parkway, Newcastle University, NE1 3BZ, Newcastle upon Tyne, UK.
The cellular concentrations of splicing factors (SFs) are critical for controlling alternative splicing. Most serine and arginine-enriched (SR) protein SFs regulate their own concentration via a homeostatic feedback mechanism that involves regulation of inclusion of non-coding 'poison exons' (PEs) that target transcripts for nonsense-mediated decay. The importance of SR protein PE splicing during animal development is largely unknown despite PE ultra-conservation across animal genomes.
View Article and Find Full Text PDFMachine learning-based analysis of microfluidic device immobilized C. elegans for automated developmental toxicity testing.
Sci Rep
January 2025
vivoVerse, LLC, Austin, TX, 78731, USA.
Developmental toxicity (DevTox) tests evaluate the adverse effects of chemical exposures on an organism's development. Although current testing primarily relies on large mammalian models, the emergence of new approach methodologies (NAMs) is encouraging industries and regulatory agencies to evaluate novel assays. C.
View Article and Find Full Text PDFFood Safety Evaluation of Recombinant Humanized Type III Collagen Produced by Komagataella phaffii SMD1168-2COL3.
J Appl Toxicol
January 2025
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
Collagens are biofunctional proteins that have been widely used in many fields, including biomedical, cosmetics, and skin care for their value in maintaining the integrity of cellular membranes. Collagens are also commonly consumed in foods and provide a source of protein and amino acids. As part of the safety assessment for this particular recombinant humanized type III (RHTypeIII) collagen produced by Komagataella phaffii SMD1168-2COL3, a series of toxicological tests were conducted.
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