Results 111 to 120 of about 170,634 (249)

The Redox Properties of Polyphenols and Their Role in ROS Generation for Biomedical Applications

open access: yesAngewandte Chemie, Volume 138, Issue 3, 16 January 2026.
The dual redox nature of polyphenols enables antioxidant activity and controlled reactive oxygen species (ROS) generation. This review details the biomedical applications of polyphenols in materials such as nanoparticles, coatings, and hydrogels for antimicrobial, tissue regeneration, and cancer therapies.
Jose Bolaños‐Cardet   +7 more
wiley   +2 more sources

MEDICINA NUCLEAR: APLICACION EN PATOLOGIA OSTEOARTICULAR

open access: yesRevista Chilena de Radiología
La mayor parte del área osteoarticular en medicina nuclear, tiene como principal examen la cintigrafía ósea, ya sea planar o con técnica SPECT (single photon emision computed tomography). Existen algunos otros exámenes usados como el estudio con Galio-67,
Pamela Humeres A
doaj   +1 more source

Serendipitous discovery of the long-sought AGN in Arp 299-A

open access: yes, 2010
Context: The dusty nuclear regions of luminous infra-red galaxies (LIRGs) are heated by either an intense burst of massive star formation, an active galactic nucleus (AGN), or a combination of both.
A. Alberdi   +26 more
core   +1 more source

Hepatic CD4 T Cells Predict Hepatocellular Carcinoma Risk on Metabolic Dysfunction‐Associated Steatohepatitis Patients

open access: yesUnited European Gastroenterology Journal, Volume 14, Issue 1, February 2026.
ABSTRACT Background & Aims Metabolic dysfunction‐associated steatohepatitis (MASH) increasingly drives hepatocellular carcinoma (HCC) development. We characterized inflammatory infiltrates in liver biopsies from MASH patients who developed HCC versus controls to identify predictive immune signatures. Method Formalin‐fixed paraffin‐embedded (FFPE) liver
Emilse Rodriguez   +13 more
wiley   +1 more source

Programa de superación en gestión de desechos radiactivos para tecnólogos de Medicina Nuclear

open access: yesRevista Habanera de Ciencias Médicas, 2023
Introducción: La gestión de desechos radiactivos es una prioridad para los hospitales que brindan el servicio de Medicina Nuclear, que demanda la superación constante del personal vinculado a esta área, principalmente los tecnólogos.
Maurice José González Basulto   +2 more
doaj  

Disruption of ATP Synthase Spatiotemporal Organization, Ca2+ Dynamics, and Contractile Function in Senescent Cardiomyocytes

open access: yesAging Cell, Volume 25, Issue 2, February 2026.
Enhanced ATP hydrolysis, ΔΨm flickering, and destabilized ATP synthase dimers collectively reduce ATP availability in senescent cardiomyocytes. This energy deficit is associated with disrupted Ca2⁺ dynamics and contractility. ABSTRACT Heart disease is the leading cause of death in the elderly population.
Silke Morris   +9 more
wiley   +1 more source

Design shielding assessment for a nuclear medicine service

open access: yesNucleus, 2019
It is recognized worldwide that the security of radioactive substances is very important and that the design of facilities where these sources are used and stored must cater for the implementation of good security measures, including the shielding of ...
O Brígido Flores   +5 more
doaj  

Aquaporin‐1, aquaporin‐3 and aquaporin‐5 differentially modulate cell biophysical and biomechanical properties, impacting cell stiffness and cell–cell adhesion

open access: yesThe FEBS Journal, Volume 293, Issue 3, Page 806-824, February 2026.
GA text Overexpression of aquaporins AQP1, AQP3, or AQP5 in HEK‐293 T cells induced changes in cell biophysical properties and migration. Atomic force microscopy (AFM)–based force spectroscopy studies demonstrated that AQP1 overexpression increased cell stiffness and cell–cell adhesion, AQP3 augmented cell stiffness but reduced cell–cell adhesion ...
Catarina Pimpão   +5 more
wiley   +1 more source

Regulatory aspects of the non-clinical researches in the Isotope Center

open access: yesNucleus, 2017
For the quality control of radiopharmaceuticals produced by Centis and in pharmacokinetic studies carried out in this institution, scintigraphic images of animals are obtained.
Yusniel Castro Alfonso
doaj  

Exploring RNA-targeted gene therapy approaches for hypertrophic cardiomyopathy [PDF]

open access: yes, 2012
Relatório de projeto no âmbito do Programa de Bolsas Universidade de Lisboa/Fundação Amadeu Dias (2011/2012). Universidade de Lisboa.
Freitas, Ana
core  

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