Results 41 to 50 of about 61,907 (295)

GPX - Gardens Point XML IR at INEX 2006 [PDF]

open access: yes, 2007
The INEX 2006 evaluation was based on the Wikipedia collection in XML format. It consisted of several tasks that required different approaches to element selection. In this paper we describe the approach that we adopted in an attempt to satisfy the requirements of all the tasks, Thorough, Focused, Relevant in Context, and Best in Context.
openaire   +4 more sources

A Crystalline and Thermally Stable Selenocysteine Selenenic Acid

open access: yesAngewandte Chemie, EarlyView.
The long‐sought catalytic intermediate of selenoproteins, selenocysteine selenenic acid (Sec–SeOH), is isolated for the first time at ambient temperature. A bioinspired selenopeptide sequence encapsulated within a protective molecular cradle and an oxidant‐free route from selenenyl iodide (Sec–SeI) enable the isolation of Sec–SeOH. Contrary to the long‐
Ryosuke Masuda, Satoru Kuwano, Kei Goto
wiley   +2 more sources

Chloroplastic and mitochondrial GPX genes play a critical role in rice development

open access: yes, 2014
Plant glutathione peroxidases (GPX) catalyze the reduction of H2O2 or organic hydroperoxides to water, mitigating the toxicity of these compounds to cells. In rice plants, the GPX gene family is composed of five members that are distributed in a range of
F. E. L. Carvalho   +5 more
core   +1 more source

Iron homeostasis disruption and lipid peroxidation in skeletal muscle during short‐term immobilization

open access: yesFEBS Open Bio, EarlyView.
14‐day casting‐induced immobilization reduced gastrocnemius muscle mass and increased non‐heme iron and ferritin heavy chain levels. Despite iron accumulation, transferrin receptor 1 and iron regulatory protein 2 were paradoxically upregulated. Lipid peroxidation was elevated without compensatory antioxidant responses.
Haruka Yokogawa   +2 more
wiley   +1 more source

The Effect of Eight Weeks of Aerobic Training on MDA, TAC, GPX, and SOD in Heart Tissue of Wistar Rats [PDF]

open access: yesورزش و علوم زیست حرکتی
Introduction and Purpose: Cardiovascular disease is one of the main causes of death in the world. The present study aimed to determine the effect of eight weeks of aerobic exercise on the levels of MDA, TAC, GPX, and SOD in the heart tissue of healthy ...
Elaheh Piralaiy   +2 more
doaj   +1 more source

The OATMEAL Survey. I. Low Stellar Obliquity in the Transiting Brown Dwarf System GPX-1 [PDF]

open access: yes
We introduce the OATMEAL survey, an effort to measure the obliquities of stars with transiting brown dwarf companions. We observed a transit of the close-in ( P _orb = 1.74 days) brown dwarf GPX-1 b using the Keck Planet Finder spectrograph to measure ...
Winn, Joshua N.   +68 more
core   +1 more source

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

open access: yesFEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks   +4 more
wiley   +1 more source

Síntese e avaliação do potencial antioxidante de compostos biologicamente importantes contendo selênio [PDF]

open access: yes, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.O presente trabalho trata do planejamento e síntese de moléculas biologicamente importantes ...
Nascimento, Vanessa do
core  

MXene Wrapped Magnetic Mesocrystals for Durable Redox Catalytic Cancer Therapy and Responsive MRI

open access: yesAdvanced Functional Materials, EarlyView.
Conformal wrapping of ultrathin Ti3C2Tx MXene nanosheets on Fe3O4 mesocrystals creates topology‐stabilized Schottky junctions that direct photoinduced electron transfer under NIR irradiation. The unique architecture sustains Fenton catalysis, promotes continuous hydroxyl radical production, and provides photo‐responsive MRI contrast.
Min Jun Ko   +10 more
wiley   +1 more source

Determination of Reactive Oxygen Species and Some Antioxidants in Iraqi Patients with Myelodysplastic Syndrome

open access: yesMedical Journal of Babylon
Background: A diverse set of clonal hematopoietic illnesses known as myelodysplastic syndrome (MDS) have decreased survival rates, risk factors for leukemia transformation, and a variety of clinical manifestations. This makes the clinical relevance of an
Wid Abdulkhaleq Abd Zaid   +5 more
doaj   +1 more source

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