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Human biomonitoring of essential and toxic trace elements (heavy metals and metalloids) in urine of children, teenagers, and young adults from a Central European Cohort in the Czech Republic.
J Expo Sci Environ Epidemiol
October 2024
RECETOX, Faculty of Science, Masaryk University, Kotlarska 2, Brno, Czech Republic.
Article Synopsis
- The study investigated urinary concentrations of 14 trace elements in 711 individuals from the Czech Republic to understand their exposure levels, including toxic metals and essential elements, and their health impacts.
- Young adults had higher levels of toxic elements, while children showed elevated levels of essential ones, with dietary factors like seafood and mushroom consumption influencing trace element concentrations.
- A significant percentage of participants exceeded the recommended health-based guidance values for arsenic and essential trace elements like zinc, indicating potential health risks associated with both deficiencies and excesses in trace element intake.*
Evaluation of Cytotoxic Effects of Purified Mercury in Human Gingival Fibroblasts- Study.
J Pharm Bioallied Sci
July 2024
Department of Pediatric and Preventive Dentistry, A J Institute of Dental Sciences, Kuntikana, Mangalore, Karnataka, India.
Article Synopsis
- Concerns about mercury toxicity from amalgam fillings have led to the exploration of ayurvedically purified mercury (AP-Hg) as a potentially safer alternative for dental treatment.
- Human gingival fibroblasts (HGF) were tested with commercially available mercury (CA-Hg) and AP-Hg at various concentrations, and cell viability was assessed after 24 and 48 hours.
- Results showed that AP-Hg led to higher cell viability and less cytotoxicity compared to CA-Hg, particularly significant at lower concentrations and over a longer period.
Effect of carbamide peroxide treatment on the ion release of different dental restorative materials.
BMC Oral Health
September 2024
Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey.
Background: To predict the long-term performance of restorative materials in the oral environment, it is important to evaluate their resistance to chemical and mechanical degradation and to know the toxic potential of the type and amount of ions eluted from the filling material. In this study, home bleaching was applied to dental materials with different contents and it was aimed to determine the type and amount of ions released from these materials.
Methods: In this study, amalgam, posterior composite resin, anterior composite resin, bulk fill composite resin, indirect composite resin, hybrid ceramic and all-ceramic were used as restorative materials.
Evaluation of XQ528 tartrate on embryo-fetus developmental toxicity in SD rats and genotoxicity.
Drug Chem Toxicol
August 2024
Experimental Teaching Center, School of Basic Medical Sciences, Naval Medical University, Shanghai, China.
The effects of XQ528 tartrate on the embryonic and fetal development of fertile Sprague-Dawley (SD) rats, along with their embryos and littermates, were evaluated using an embryo-fetus developmental toxicity assay. fertile SD rats exhibited no significant general toxic effects when administered doses of 0.25, 1.
View Article and Find Full Text PDFStabilization of residual mercury from gold mining as metacinnabar and cinnabar in ball mills on a pilot scale.
Heliyon
July 2024
Center for Research in Chemistry, Toxicology, and Environmental Biotechnology, Department of Chemistry, Faculty of Science, Universidad Nacional Agraria La Molina, 15024, Lima, Peru.
Waste liquid mercury generated as a by-product of the Merrill-Crowe process in gold mining and recovered from mercury-containing waste must be stabilized for secure storage or disposal. This study developed a procedure for mercury stabilization. A ball mill with a 0.
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