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Filename: controllers/Detail.php
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This session at the 2010 joint symposium of the Society of Toxicologic Pathology (STP) and the International Federation of Societies of Toxicologic Pathologists (IFSTP) explored modern neuropathology methods for assessing the neurotoxicologic potential of xenobiotics. Conventional techniques to optimally prepare and evaluate the central and peripheral neural tissues while minimizing artifact were reviewed, and optimal schemes were set forth for evaluation of the nervous system during both routine (i.e., general toxicity) studies and enhanced (i.e., specialized neurotoxicity) studies. Stereology was introduced as the most appropriate means of examining the possible impact of toxicants on neural cell numbers. A focused discussion on brain sampling took place among a panel of expert neuroscientists (anatomists and pathologists) and the audience regarding the proper balance between sufficient sampling and cost- and time-effectiveness of the analysis. No consensus was reached on section orientation (coronal sections of both sides vs. a parasagittal longitudinal section with several unilateral hemisections from the contralateral side), but most panelists favored sampling at least 8 sections (or approximately double to triple the current complement) in routine toxicity studies.
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http://dx.doi.org/10.1177/0192623310394213 | DOI Listing |
ACS Appl Mater Interfaces
December 2024
Materials Engineering, Indian Institute of Technology Gandhinagar, Gandhinagar 382055, India.
Nanoparticles have been of significant interest in various biomedical domains such as drug delivery, gene delivery, cytotoxicity analysis, and imaging. Despite the synthesis of a variety of nanoparticles, their cellular uptake efficiency remains a substantial obstacle, with only a small fraction of delivered nanoparticles (NPs) have been reported to traverse the cell membrane within 24 h. Consequently, higher doses are often necessitated, leading to increased toxicity concerns.
View Article and Find Full Text PDFJ Pediatr (Rio J)
December 2024
Universidade Federal do Paraná (UFPR), Curitiba, Paraná, Brazil. Electronic address:
Objectives: to review scientific evidence on the impacts of pesticides on child health, addressing prenatal and postnatal exposures, acute and chronic effects.
Data Source: narrative literature review, using databases such as PubMed, SciELO and Google Scholar. The inclusion criteria involved studies published between 2000 and 2023 that analyzed the relationship between pesticides and child health, including systematic reviews, cohort studies, case-control studies and clinical trials.
Environ Sci Technol
December 2024
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan430072, China.
As a novel organophosphate ester (NOPE), tris(2,4-di-butylphenyl) phosphate (TDtBPP) has attracted significant attention due to its unexpectedly high detection in natural environments. However, the ecological toxic effects of environmentally relevant concentrations of TDtBPP in organisms remain entirely unknown. In this study, 1 month old zebrafish were exposed to 0, 50, 500, or 5000 ng/L TDtBPP for 150 days, and the reproductive toxicity in male fish was evaluated.
View Article and Find Full Text PDFJ Toxicol Environ Health A
December 2024
Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Akademija, Lithuania.
Tetracycline (TC) antibiotics are one of the class of drugs widely used in clinical practice but also constitute a significant environmental concern. However, the adverse effects of TC on non-target organisms have not been well studied. The aim of this study was to examine the influence of exposure to high levels of TC on thalli of lichens to determine the impact on (1) physiological parameters including integrity of cell membranes, photosynthetic efficiency and viability, (2) oxidative stress response such as membrane lipid peroxidation, and (3) enzymatic antioxidant activities as catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), and glutathione reductase (GR).
View Article and Find Full Text PDFClin Transl Oncol
December 2024
Centro Oncológico Integral Canario, Hospital Universitario San Roque, Las Palmas, Spain.
Aim: To assess for the first time the safety and feasibility of combining photon-IntraOperative RadioTherapy (ph-IORT) with hypofractionated whole-breast irradiation (hWBI) in patients referred to adjuvant radiotherapy after Breast-Conserving Surgery (BCS).
Methods: From February 2019 to August 2020, patients referred for breast-conserving surgery (BCS) in our institution were prospectively included in the present trial. BCS was discussed in the multidisciplinary tumor board (MTB).
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