Results 81 to 90 of about 120,535 (297)

Combined fluorometric analysis of biliverdin and bilirubin by the recombinant protein HUG

open access: yesMethodsX
Biliverdin is a secondary metabolite of heme catabolism. It is formed by the reaction catalyzed by heme oxygenase, which converts the heme group contained in proteins such as hemoglobin, myoglobin, cytochromes, and catalase into biliverdin, iron (II) and
Federica Tramer   +5 more
doaj   +1 more source

Abnormal modulation of cell protective systems in response to ischemic/reperfusion injury is important in the development of mouse sickle cell hepatopathy

open access: yesHaematologica, 2011
Background Sickle cell disease, a genetic red cell disorder inherited in an autosomal recessive manner, occurs throughout the world. Hepatic dysfunction and liver damage may be present in sickle cell disease, but the pathogenesis of these conditions is ...
Angela Siciliano   +10 more
doaj   +1 more source

The Ferrous Verdoheme−Heme Oxygenase Complex is Six-Coordinate and Low-Spin

open access: yes, 2016
A biosynthetic and enzymatic method was developed for the preparation of 13C-labeled verdoheme, which permits the 13C NMR spectroscopic characterization of this elusive intermediate in the heme oxidation path catalyzed by the enzyme heme oxygenase.
Christopher O. Damaso (2659240)   +4 more
core   +1 more source

Pharmacological and Clinical Significance of Heme Oxygenase-1

open access: yes, 2021
This Special Issue collates and updates the current knowledge of the pharmacology and clinical applications concerning the enzyme heme oxygenase (HO) [...
Nader G. Abraham   +3 more
core   +1 more source

Heat stress in spermatogenesis: a redox‐dependent decision network linking ROS, autophagy, and regulated cell death

open access: yesBiological Reviews, EarlyView.
ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
wiley   +1 more source

Characterization and Expression Analysis of Heme Oxygenase Genes from

open access: yesBioinformatics and Biology Insights, 2019
Heme oxygenases (HOs) have a major role in phytochrome chromophore biosynthesis, and chromophores in turn have anti-oxidant properties. Plant heme oxygenases are divided into the HO1 sub-family comprising HO1, HO3, and HO4, and the HO2 sub-family, which ...
Takalani Mulaudzi-Masuku   +5 more
doaj   +1 more source

Direct Observation of a Hydrogen‐Bonding Assisted Quasi‐Reversible Superoxo/Peroxo Interconversion in a Heme Model

open access: yesChemistry – A European Journal, EarlyView.
First direct observation of a quasi‐reversible superoxo (FeIII─O2˙ˉ)/peroxo (FeIII─O22ˉ) redox couple in a heme model complex, featuring a biologically relevant low‐spin ferric end‐on peroxo species stabilized by second‐sphere hydrogen bonding. These findings highlight the key role of second‐sphere interactions in modulating O2 activation pathways ...
Adelais Trapali   +6 more
wiley   +1 more source

Transforming Growth Factor‐β (TGF‐β)–Dependent Iron Homeostasis and Altered TGF‐β Responsiveness in FLVCR1‐Deficient CD4 T Cells

open access: yesBarrier Immunity, EarlyView.
Negative feedback resulting from continuous TGFβRI expression in FLVCR1‐deficient CD4 T cells. Unlike in normal CD4 T cells, TGF‐βRI is not degraded upon activation in FLVCR1‐deficient CD4 T cells. Sustained receptor expression results in increased TGF‐β, leading to dysregulated iron homeostasis, impaired cell proliferation, and enhanced cell death ...
Amber L. Siglin   +3 more
wiley   +1 more source

Mechanism of synergistic induction of hepatic heme oxygenase by glutethimide and iron: studies in cultured chick embryo liver cells

open access: yes, 2008
Heme oxygenase, the rate controlling enzyme for heme catabolism, is inducible by a variety of treatments, some of which induce by a heme-dependent mechanism and others by a heme-independent mechanism.
Greene, Yvonne J.   +4 more
core   +1 more source

Dapagliflozin alleviates high‐fat‐induced obesity cardiomyopathy by inhibiting ferroptosis

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 1358-1373, April 2025.
Abstract Aim: Dapagliflozin (Dapa) is a novel hypoglycaemic agent with multiple cardiovascular protective effects, and it is widely used in treatment of heart failure patients, but whether it can improve obese phenotype of heart failure and its mechanism is still unclear.
Di Chen   +7 more
wiley   +1 more source

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