Results 41 to 50 of about 23,877 (158)

Lupeol‐Loaded Liposomes: Triple‐Negative Breast Cancer (TNBC) Cytotoxicity and In Vivo Toxicological Evaluation

open access: yesChemistry &Biodiversity, Volume 22, Issue 11, November 2025.
ABSTRACT Lupeol is a natural product commonly found in many vegetables and fruits in significant quantities. Previous studies have demonstrated the relevant activity of lupeol against various tumor cell lines, suggesting that the natural product could be a promising agent for cancer treatment.
Daniel Crístian Ferreira Soares   +6 more
wiley   +1 more source

Aspectos toxicológicos relacionados con la utilización del cromo en el proceso productivo de curtiembres

open access: yesRevista de la Facultad de Medicina, 2004
El cromo es un elemento metálico de amplia distribución en la naturaleza, en forma de crocoita. Ocupa el cuarto lugar entre los 29 elementos biológicamente más importantes de la corteza terrestre.
Jairo Téllez M.   +2 more
doaj  

Modification of Oxidative Stress Induced by Exposure to Arsenate in Rat Chondrocytes Treated With Chitosan–Glutathione Nanoparticles

open access: yesJournal of Applied Toxicology, Volume 45, Issue 11, Page 2391-2399, November 2025.
ABSTRACT Nanoparticles can modify the signaling pathways related to the toxic effects of xenobiotics and their toxicity by adding compounds that alter the oxidation–reduction state, such as glutathione (GSH). This work aimed to evaluate the antioxidant capacity of chitosan–glutathione nanoparticles (NPs Q‐GSH) to modify lipoperoxidation induced by ...
Laura Denise López Barrera   +5 more
wiley   +1 more source

Subsistema de vigilancia toxicológica para casos de intoxicaciones masivas y/o desastres químicos

open access: yesRevista Habanera de Ciencias Médicas, 2014
Introducción: LaToxicovigilancia constituye un proceso activo de identificación y evaluación de riesgo y de las medidas adoptadas para reducirlos o eliminarlos.
Adriana Mederos Gómez   +3 more
doaj  

Identification and Investigation of the Intrinsic Receptor Activation Potential and Metabolization of the New Oxo‐Pyridyl Synthetic Cannabinoid Receptor Agonist CH‐FUBBMPDORA

open access: yesDrug Testing and Analysis, Volume 17, Issue 9, Page 1623-1639, September 2025.
Another Chinese generic ban‐evading SCRA, CH‐FUBBMPDORA, has emerged. This study reports its first identification in Europe, its analytical characterization (NMR, Raman, FTIR, GC–MS, and HRMS), its cannabinoid activation potential in a βarr2 recruitment assay, and its metabolization profile.
Marie H. Deventer   +13 more
wiley   +1 more source

Highly Pathogenic Avian Influenza A (H5N1) Infection in Bearded Vultures in Spain

open access: yesZoonoses and Public Health, Volume 72, Issue 6, Page 544-549, September 2025.
ABSTRACT We report mortality in bearded vultures ( Gypaetus barbatus ) associated with highly pathogenic avian influenza HPAI A H5N1 clade 2.3.4.4b, responsible for the current HPAI panzootic. Between April and May 2022, a total of five bearded vultures from Spain, four free‐ranging and one captive individual, were found dead in their nest or with ...
Remigio Martínez   +9 more
wiley   +1 more source

Ecotoxicidad de nanopartículas metálicas y superparamagnéticas de óxido de hierro en dos especies

open access: yesRevista Cubana de Medicina Militar, 2017
Introducción: la nanotecnología y el empleo de materiales a nano escala son un área relativamente nueva de la ciencia y la tecnología con un gran crecimiento en el mercado global.
Yordanka Domínguez Linares   +5 more
doaj  

Elaboración del plan de gestión integral de residuos o desechos peligrosos del Instituto Nacional de Medicina Legal y Ciencias Forenses Regional Occidente Sede Pereira [PDF]

open access: yes, 2010
Este documento, servirá como una herramienta de trabajo para los funcionarios del Instituto Nacional de Medicina Legal y Ciencias Forenses Regional Occidente Sede Pereira encargados de la gestión ambientalmente sostenible de los residuos ...
Ríos Rodríguez, Diana María   +1 more
core  

SYNTESIS AND CRYSTALLINE STRUCTURE OF THE EXO-3,6-DIMETHYL-3,6-EPOXI-1,2,3,6-TETRAHYDROPHTLALIMIDE AND ITS N-BROMODECYL ANALOG: TWO THERMALLY LABILE DIELS-ALDER ADDUCTS [PDF]

open access: yes, 2014
Indexación: Web of Science; Scielo.The molecular structure of the exo-3,6-dimethyl-3,6-epoxi-1,2,3,6-tetrahydrophthalimide (1), determined by X-ray diffraction analysis, as well as, its complete spectroscopic characterization and the synthesis and ...
ARAYA-FUENTES, EYLEEN   +4 more
core   +2 more sources

The influence of aridity on plant intraspecific chemical diversity supports adaptive differentiation and convergent evolution

open access: yesPlant Biology, Volume 27, Issue 5, Page 761-772, August 2025.
Pyrrolizidine alkaloid composition in the invasive plant Senecio pterophorus is coherent with a pattern of adaptive differentiation in response to aridity, as shown in an environmental gradient in the native range and across three cross‐continental introductions, under natural and common garden conditions, by accounting for the population neutral ...
E. Castells, P. Sanchez‐Martinez
wiley   +1 more source

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