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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.*
Selective colorimetric sensing of histidine in aqueous media via Ag nanotriangles in the presence of HgCl.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Department of Materials and Metallurgical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
Silver nanotriangles (AgNTs) were successfully synthesized as a colorimetric probe for selective and sensitive histidine detection in aqueous media within a 15-100 µM range and a detection limit of 330 nM using UV-Vis spectroscopy. The interaction of HgCl with AgNTs would lead to the formation of disk-shaped Ag/Hg amalgam as observed from the transmission electron images and X-ray diffraction patterns. Histidine prevents these structural and morphological changes and accordingly, the detection approach was developed based on the correlation between the histidine concentration and the in-plane dipole plasmon resonance (DPR) intensity.
View Article and Find Full Text PDFBiomonitoring Study of Toxic Metal(loid)s: Levels in Lung Adenocarcinoma Patients.
Toxics
July 2024
Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova 3, 21000 Novi Sad, Serbia.
Lung cancer is a leading cause of cancer deaths worldwide. The aim of this study was to investigate heavy metal(loid)s (Cd, Pb, Hg, Cr, Mn, Mo, Ni, and As) in lung cancer patients in order to elucidate their role as lung cancer environmental risk factors. Sixty-three patients of both sexes with adenocarcinoma stage IIIB or IV were enrolled in this research.
View Article and Find Full Text PDFPreformed Stainless-Steel Crowns: Their Effects on Oral Hygiene Maintenance and Gingival Health - A Prospective Original Research.
J Pharm Bioallied Sci
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Department of Restorative Dentistry, College of Dentistry in Ar Rass, Qassim University, Kingdom of Saudi Arabia.
The stainless-steel crown (SSC) is a durable restoration and has several indications for use in primary teeth such as following a pulpotomy/pulpectomy, fractured teeth, teeth with developmental defects, or large multi-surface caries lesions where amalgam is likely to fail. Due to its durability and a lifespan like the primary tooth, it could well be the gold standard in restorative care. SSCs protect the crown from fracture, reduce the possibility for leakage, and ensure a biological seal.
View Article and Find Full Text PDFThe "plant neurobiology" revolution.
Plant Signal Behav
December 2024
Department of Natural Sciences, Mercy University, Dobbs Ferry, NY, USA.
The 21st-century "plant neurobiology" movement is an amalgam of scholars interested in how "neural processes", broadly defined, lead to changes in plant behavior. Integral to the movement (now called plant behavioral biology) is a triad of historically marginalized subdisciplines, namely plant ethology, whole plant electrophysiology and plant comparative psychology, that set plant neurobiology apart from the mainstream. A central tenet held by these "triad disciplines" is that plants are exquisitely sensitive to environmental perturbations and that destructive experimental manipulations rapidly and profoundly affect plant function.
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