Results 141 to 150 of about 76,980 (312)

Photodynamic inactivation increases cell death rate on persistent Staphylococcus aureus

open access: yesPhotochemistry and Photobiology, EarlyView.
Persistent bacteria have the ability to survive extended periods of antibiotic stress by entering a metabolically dormant state. This study investigated persistence formation in two S. aureus strains and evaluated the effects of PDI using curcumin. Post‐PDI time‐kill assays conducted after metabolic recovery showed a higher rate of bacterial death ...
Maria Vitória Silva Pereira   +3 more
wiley   +1 more source

Oxyleghemoglobin scavenges nitrogen monoxide and peroxynitrite: a possible role in functioning nodules? [PDF]

open access: yes, 2018
It has been demonstrated that the NO• produced by nitric oxide synthase or by the reduction of nitrite by nitrate reductase plays an important role in plants' defense against microbial pathogens.
Herold, Susanna, Puppo, Alain
core  

The role of constitutive nitric‐oxide synthase in regulation of IKKα after ultraviolet irradiation

open access: yesPhotochemistry and Photobiology, EarlyView.
cNOS enhances IKKα expression following UVB exposure by promoting promoter activation, transcriptional elongation, and Ets‐1 stabilization. These actions sustain IKKα levels, reduce UV‐induced skin carcinogenesis, and highlight cNOS as a key protective factor against solar UV damage.
Yuxi Zhou   +6 more
wiley   +1 more source

Increasing Tetrahydrobiopterin in Cardiomyocytes Adversely Affects Cardiac Redox State and Mitochondrial Function Independently of Changes in NO Production [PDF]

open access: yes, 2016
Tetrahydrobiopterin (BH4) represents a potential strategy for the treatment of cardiac remodeling, fibrosis and/or diastolic dysfunction. The effects of oral treatment with BH4 (Sapropterin™ or Kuvan™) are however dose-limiting with high dose negating ...
Bennett, Brian   +5 more
core   +1 more source

Redox‐regulated signalling of adaptations to contractile activity in skeletal muscle: Implications for age‐related muscle weakness

open access: yesExperimental Physiology, EarlyView.
Abstract Skeletal muscle adaptation to contractile activity is modulated by redox signalling, primarily through reactive oxygen species (ROS) such as hydrogen peroxide (H2O2). Early research framed ROS as deleterious byproducts of exercise, but subsequent studies have established their roles as signalling molecules involved in mitochondrial biogenesis,
Malcolm J. Jackson
wiley   +1 more source

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

open access: yesExperimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner   +3 more
wiley   +1 more source

Excessive hypercholesterolaemia during pregnancy as a risk factor for endothelial dysfunction in pre‐eclampsia

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Excessive hypercholesterolaemia during pregnancy impairs maternal endothelial function, which, in turn, drives the development of pre‐eclampsia and may also contribute to the increased risk of later‐life cardiovascular disease in women.
Amanda A. de Oliveira   +3 more
wiley   +1 more source

FORMATION OF DIAMAGNETIC PRODUCTS IN CRYSTALLINE NITRATES UNDER THE ACTION OF LIGHT QUANTA WITH THE ENERGY OF 5.58 EV

open access: yesВестник Кемеровского государственного университета, 2014
The photolysis of potassium, rubidium and cesium crystalline nitrates under light with the photon energy of 5.58 eV was investigated. Nitrite and peroxynitrite are the photolysis end-products.
L. D. Kriger   +2 more
doaj  

Calciprotein particle‐induced calcium overload triggers mitochondrial dysfunction in endothelial cells

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Calciprotein particles (CPPs) are small calcium‐ and phosphate‐containing nanoaggregates associated with the development of vascular disease (CVD) in chronic kidney disease (CKD). Previously, we have shown that CPPs induce endothelial cell (EC) dysfunction, possibly contributing to CVD in CKD, but the underlying molecular ...
Lian Feenstra   +9 more
wiley   +1 more source

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