Metal fumes, drinking habits and dementia: What a new study found

https://www.news-medical.net/news/20261106/Metal-fumes-drinking-habits-and-dementia-What-a-new-study-found.aspx Could workplace chemicals and everyday habits influence dementia risk? A new study points to metal exposure and alcohol consumption as potential factors in Lewy body dementia, and raises questions about differences between men and women. A new study published in the journal npj Parkinson's Disease identifies potential environmental factors associated with the risk of developing Lewy body dementia, with preliminary evidence of possible sex-related differences.

The microbes on your lettuce change with the seasons

https://www.news-medical.net/news/20261106/The-microbes-on-your-lettuce-change-with-the-seasons.aspx From farm to fork, lettuce carries billions of microorganisms that change with the seasons. New research links these leaf-dwelling microbes to greater gut bacterial diversity, raising questions about how fresh vegetables may influence our microbiome. A recent study published online in the journal npj Science of Food suggests that lettuce may provide bacteria and fungi that could reach the human gut, with possible implications for gut microbial composition and diversity.

Food Safety Risk Assessment: How Scientists Evaluate Chemical and Microbial Hazards

https://www.news-medical.net/life-sciences/Food-Safety-Risk-Assessment-How-Scientists-Evaluate-Chemical-and-Microbial-Hazards.aspx What happens after scientists detect a contaminant in food? Exposure estimates, dose-response models, and consumer susceptibility shape the subsequent investigation. Finding a toxic metal or pathogenic bacterium in a food sample begins an evaluation of exposure and potential health effects. Modern laboratory methods can detect substances at minute concentrations, and detection alone says little about whether anyone will be harmed. What matters is how much of the agent reaches consumers, how often, and what that amount does in the body.

Foodborne Outbreak Investigations: Tracing Food Poisoning to Its Source

https://www.news-medical.net/life-sciences/Foodborne-Outbreak-Investigations-Tracing-Food-Poisoning-to-Its-Source.aspx From patients' food histories to genetic clues and shipping records, each outbreak presents a different challenge in tracing contamination through the food supply. Pathogens such as Salmonella and Listeria can enter food at different stages of production, processing, distribution, or preparation, complicating efforts to locate the source.1,2 As a result, identifying the precise food source behind a disease outbreak requires investigators to connect patient exposures with food testing and distribution records. Specifically, public health investigators combine clinical data with laboratory analyses and supply chain records to identify the responsible vehicle or source.

How Foodborne Pathogens Survive Food Processing and Preservation

https://www.news-medical.net/life-sciences/How-Foodborne-Pathogens-Survive-Food-Processing-and-Preservation.aspx What happens to foodborne bacteria when they encounter freezing, drying, or heat? Research examines the cellular responses and food conditions that shape their fate.

How Cold Atmospheric Plasma Weakens Biofilm Defenses

https://www.news-medical.net/life-sciences/How-Cold-Atmospheric-Plasma-Weakens-Biofilm-Defenses.aspx Cold atmospheric plasma offers a promising approach to overcoming the protective defenses of microbial biofilms through reactive oxygen and nitrogen species. Emerging research demonstrates that combining plasma with biofilm-sensitizing compounds or antibiotics can significantly enhance microbial killing, although further clinical validation is required. The growing challenge of antimicrobial resistance (AMR) demands innovative modernization of traditional therapeutic strategies, particularly for chronic infections characterized by biofilm formation.

Identifying polyethylene microplastics in liver samples

https://www.news-medical.net/whitepaper/20261105/Identifying-polyethylene-microplastics-in-liver-samples.aspx Can microplastics permeate biological boundaries and build up within internal organs? In biomedical and environmental studies, this has become one of the most crucial questions. Specific detection within organs remains analytically challenging, even though evidence of microplastics in digestive systems is well documented. The proposition that small enough polyethylene (PE) microplastics can pass the intestinal barrier and build up in liver tissue was studied by a university research group. This article shares the analytical method employed to collect chemically specific evidence of PE particles inside the tissue.