Results 71 to 80 of about 38,938 (333)

Isolation and characterization of the full-length cDNA encoding a member of a novel cytochrome p450 family (CYP320A1) from the tropical freshwater snail, Biomphalaria glabrata, intermediate host for Schistosoma mansoni [PDF]

open access: yes, 2005
Cytochrome p450s (cyp450s) are a family of structurally related proteins, with diverse functions, including steroid synthesis and breakdown of toxins. This paper reports the full-length sequence of a novel cyp450 gene, the first to be isolated from the ...
Altschul SF   +17 more
core   +5 more sources

Presbycusis: Pathology, Signal Pathways, and Therapeutic Strategy

open access: yesAdvanced Science, EarlyView.
In ARHL, the stria vascularis, acting as a cochlear battery, gradually loses its ability to maintain the endocochlear potential, leading to impaired hair cell function and progressive hearing loss. Single‐cell sequencing reveals age‐related cellular changes in the cochlea, providing insights into the underlying mechanisms of aging and potential ...
Xiaoxu Zhao   +12 more
wiley   +1 more source

Oxidative stress markers induced by hyperosmolarity in primary human corneal epithelial cells. [PDF]

open access: yesPLoS ONE, 2015
Oxidative stress has been known to be involved in pathogenesis of dry eye disease. However, few studies have comprehensively investigated the relationship between hyperosmolarity and oxidative damage in human ocular surface.
Ruzhi Deng   +8 more
doaj   +1 more source

Acod1 Promotes PAD4 Ubiquitination via UBR5 Alkylation to Modulate NETosis and Exert Protective Effects in Sepsis

open access: yesAdvanced Science, EarlyView.
In this study, Acod1 knockout in CLP mice significantly increases peripheral blood NET levels, exacerbating inflammation, organ damage, and reducing survival. Further research shows that UBR5 interacts with PAD4, a key NET formation protein. Acod1/itaconate (ITA) enhances the enzymatic activity of UBR5 by alkylating the Cys2768 site, promoting the K48 ...
Huifan Liu   +10 more
wiley   +1 more source

Deciphering Tryptophan Oxygenation: Key Modulators of 2‐Oxindole Formation in MarE

open access: yesAngewandte Chemie, EarlyView.
This study reveals that MarE, a heme‐dependent aromatic oxygenase, favors dioxygenation of β‐methyl‐l‐tryptophan in the absence of ascorbate and demonstrates how structural and redox tuning shifts its reactivity toward selective monooxygenation, yielding a 2‐oxindole scaffold. These findings offer new insights into enzyme‐controlled indole oxidation in
Romie C. Nguyen, Inchul Shin, Aimin Liu
wiley   +2 more sources

Catalysts on Demand: Selective Oxidations by Laboratory-Evolved Cytochrome P450 BM3 [PDF]

open access: yes, 2009
Efficient catalysts for selective oxidation of C-H bonds using atmospheric oxygen are highly desirable to decrease the economic and environmental costs associated with conventional oxidation processes.
Arnold, Frances H., Lewis, Jared C.
core   +2 more sources

NIR Driven Pd/Cerium Oxide Nano‐Heterojunction for Enhanced Salvaging Sepsis Induced Acute Liver Injury via Reprogramming Redox Homeostasis in Synergy with Inducing Autophagy

open access: yesAdvanced Science, EarlyView.
In vivo SALI therapy is achieved by scavenging intracellular ROS levels, downregulating inflammatory factors expression levels, inducing macrophage M2 directional polarization, and activating Keap1/Nrf‐2/HO‐1 pathway to reprogram redox homeostasis, induce cellular autophagy, reduce systemic inflammation, and promote liver tissue repair. Abstract Sepsis
Tao Qin   +21 more
wiley   +1 more source

Human AlkB homologue 5 is a nuclear 2-oxoglutarate dependent oxygenase and a direct target of hypoxia-inducible factor 1α (HIF-1α).

open access: yesPLoS ONE, 2011
Human 2-oxoglutarate oxygenases catalyse a range of biological oxidations including the demethylation of histone and nucleic acid substrates and the hydroxylation of proteins and small molecules.
Armin Thalhammer   +12 more
doaj   +1 more source

Delivery of Molecular Hydrogen for Precision Immunomodulation: Mechanisms, Detection Methods, and Applications

open access: yesAdvanced Science, EarlyView.
This review focuses on the immunomodulatory mechanisms of molecular hydrogen, the recent detection methods, and the classification advanced molecular hydrogen delivery materials. It provides a detailed description of their applications in areas such as arthritis, chronic wounds, cardiovascular injury, tumors, and bacterial infections, aiming to enhance
Gangfeng Li   +9 more
wiley   +1 more source

Heme-oxygenases during erythropoiesis in K562 and human bone marrow cells. [PDF]

open access: yesPLoS ONE, 2011
In mammalian cells, heme can be degraded by heme-oxygenases (HO). Heme-oxygenase 1 (HO-1) is known to be the heme inducible isoform, whereas heme-oxygenase 2 (HO-2) is the constitutive enzyme.
Liliane R Alves   +10 more
doaj   +1 more source

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