Results 71 to 80 of about 153,280 (319)

Constant enzymatic in situ production of H2O2 for an Unspecific Peroxygenase by an L‐amino acid oxidase

open access: yesAdvanced Synthesis &Catalysis, Accepted Article.
Unspecific Peroxygenases have been the subject of a lot of research in the recent past as they offer opportunities for green hydroxylation reactions using hydrogen peroxide (H2O2) as donor. A striking problem of UPOs is their low stability against their own co‐substrate H2O2.
Simon Last   +6 more
wiley   +1 more source

Nrf2 Plays a Protective Role Against Intravascular Hemolysis-Mediated Acute Kidney Injury

open access: yesFrontiers in Pharmacology, 2019
Massive intravascular hemolysis is associated with acute kidney injury (AKI). Nuclear factor erythroid-2-related factor 2 (Nrf2) plays a central role in the defense against oxidative stress by activating the expression of antioxidant proteins.
Alfonso Rubio-Navarro   +24 more
doaj   +1 more source

Second order estimates for convex solutions of degenerate $k$-Hessian equations [PDF]

open access: yesarXiv, 2022
The $C^{1,1}$ estimate of the Dirichlet problem for degenerate $k$-Hessian equations with non-homogenous boundary conditions is an open problem, if the right hand side function $f$ is only assumed to satisfy $f^{1/(k-1)} \in C^{1,1}$. In this paper, we solve this problem for convex solutions defined in the strictly convex bounded domain.
arxiv  

Influence of heme c attachment on heme conformation and potential [PDF]

open access: yesJBIC Journal of Biological Inorganic Chemistry, 2018
Heme c is characterized by its covalent attachment to a polypeptide. The attachment is typically to a CXXCH motif in which the two Cys form thioether bonds with the heme, "X" can be any amino acid other than Cys, and the His serves as a heme axial ligand.
Jesse G. Kleingardner   +5 more
openaire   +3 more sources

Bilirubin Targeting WNK1 to Alleviate NLRP3‐Mediated Neuroinflammation

open access: yesAdvanced Science, EarlyView.
At physiological concentrations, bilirubin binds to the kinase domain of WNK1, thereby augmenting its activity and facilitating the phosphorylation of downstream SPAK/OSR1. This phosphorylation inhibits KCC2 activity, leading to elevate intracellular chloride levels in neurons.
Linfei Mao   +14 more
wiley   +1 more source

Could Heme Oxygenase-1 Be a New Target for Therapeutic Intervention in Malaria-Associated Acute Lung Injury/Acute Respiratory Distress Syndrome?

open access: yesFrontiers in Cellular and Infection Microbiology, 2018
Malaria is a serious disease and was responsible for 429,000 deaths in 2015. Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is one of the main clinical complications of severe malaria; it is characterized by a high mortality rate and ...
Marcelo L. M. Pereira   +2 more
doaj   +1 more source

Curvature estimates for a class of Hessian type equations [PDF]

open access: yesarXiv, 2020
In this paper, we establish the curvature estimates for a class of Hessian type equations. Some applications are also discussed.
arxiv  

The Pogorelov estimates for degenerate curvature equations [PDF]

open access: yesarXiv, 2022
We establish the Pogorelov type estimates for degenerate prescribed k-curvature equations as well as k-Hessian equations. Furthermore,we investigate the interior C1,1 regularity of the solutions for Dirichlet problems. These techniques also enable us to improve the existence theorem for an asymptotic Plateau type problem in hyperbolic space.
arxiv  

Heme and the Endothelium [PDF]

open access: yesJournal of Biological Chemistry, 1998
We studied the effects of nitric oxide (NO) on the control of excess cellular heme and release of catalytically active iron. Endothelial cells (ECs) exposed to hemin followed by a NO donor have a ferritin content that is 16% that of cells exposed to hemin alone.
William E. Antholine   +6 more
openaire   +3 more sources

Unveiling Structural Heterogeneity and Evolutionary Adaptations of Heteromultimeric Bacterioferritin Nanocages

open access: yesAdvanced Science, EarlyView.
This study explores the structural heterogeneity and evolutionary adaptations of heteromultimeric bacterioferritins. Hetero‐Bfrs, evolved from either a homo‐Bfr or Ftn by gene duplications, differ from homo‐Bfrs substantially in the mechanisms underpinning iron oxidation and reduction despite high similarity in overall structure.
Yingxi Li   +5 more
wiley   +1 more source

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