Results 351 to 360 of about 1,259,046 (413)

Studies on the quantitative and qualitative characterization of erythrocyte glutathione peroxidase.

Journal of Laboratory and Clinical Medicine, 1967
An assay procedure is described in which blood cell glutathione peroxidase may be accurately measured by a direct spectrophotometric procedure. Glutathione peroxidase activity is found to be associated with a relatively stable, nondialyzable, heat-labile,
D. Paglia, W. N. Valentine
semanticscholar   +1 more source

Hydrogen Peroxide is Scavenged by Ascorbate-specific Peroxidase in Spinach Chloroplasts

, 1981
Intact spinach chloroplasts scavenge hydrogen peroxide with a peroxidase that uses a photoreductant as the electron donor, but the activity of ruptured chloroplasts is very low [Nakano and Asada (1980) Plant & Cell Physiol. 21: 1295].
Y. Nakano, K. Asada
semanticscholar   +1 more source

Glutathione peroxidases

Biochimica et Biophysica Acta (BBA) - General Subjects, 2013
With increasing evidence that hydroperoxides are not only toxic but rather exert essential physiological functions, also hydroperoxide removing enzymes have to be re-viewed. In mammals, the peroxidases inter alia comprise the 8 glutathione peroxidases (GPx1-GPx8) so far identified.Since GPxs have recently been reviewed under various aspects, we here ...
Brigelius Flohé R, MAIORINO, MATILDE
openaire   +2 more sources

Peroxidases of Trypanosomatids

Antioxidants & Redox Signaling, 2008
This article provides an overview about the recent advances in the dissection of the peroxide metabolism of Trypanosomatidae. This family of protozoan organisms comprises the medically relevant parasites Trypanosoma brucei, Trypanosoma cruzi, and Leishmania spp.
Ana M. Tomás, Ana M. Tomás, Helena Castro   +2 more
openaire   +3 more sources

Selenium: biochemical role as a component of glutathione peroxidase.

Science, 2009
When hemolyzates from erythrocytes of selenium-deficient rats were incubated in vitro in the presence of ascorbate or H(2)O(2), added glutathione failed to protect the hemoglobin from oxidative damage.
J. T. Rotruck, A. L. Pope, H. Ganther, A. Swanson, D. Hafeman, W. Hoekstra   +5 more
semanticscholar   +1 more source

Neurodegeneration and peroxidases

Neurobiology of Aging, 2009
Alzheimer's disease (AD), Parkinson's disease (PD) and amyotrophic lateral sclerosis (ALS) are neurodegenerative diseases that affect different parts of the central nervous system. However, a review of the literature indicates that certain biochemical reactions involved in neurodegeneration in these three diseases are quite similar and could be partly ...
Penelope W. Coates, Johannes Everse
openaire   +3 more sources

Densely Isolated FeN4 Sites for Peroxidase Mimicking

, 2020
Despite the breakthroughs of transition-metal catalysts in enzyme mimicking, fundamental investigation on the design of efficient nanozymes at the atomic scale is still required for boosting their ...
Lei Jiao, Jiabin Wu, Hong Zhong, Yu Zhang, Weiqing Xu, Yu Wu, Yifeng Chen, Hongye Yan, Qinghua Zhang, Wenling Gu, L. Gu, S. Beckman, Liang Huang, Chengzhou Zhu   +13 more
semanticscholar   +1 more source

Common phylogeny of catalase-peroxidases and ascorbate peroxidases

Gene, 2000
Catalase-peroxidases belong to Class I of the plant, fungal, bacterial peroxidase superfamily, together with yeast cytochrome c peroxidase and ascorbate peroxidases. Obviously these bifunctional enzymes arose via gene duplication of an ancestral hydroperoxidase. A 230-residues long homologous region exists in all eukaryotic members of Class I, which is
Štefan Janeček, Marcel Zámocký, Franz Koller   +2 more
openaire   +3 more sources

Density Functional Theory-Based Method to Predict the Activities of Nanomaterials as Peroxidase Mimics

, 2020
A wide variety of nanomaterials possess peroxidase-like catalytic activities and show promise as cost-effective and versatile replacements for natural peroxidases.
Xiaomei Shen, Zhenzhen Wang, Xingfa Gao, Yuliang Zhao   +3 more
semanticscholar   +1 more source