Results 121 to 130 of about 747,150 (312)

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

An investigation on oxidative metabolism and oxidative DNA damage among schizophrenia patients with or without symptomatic remission

open access: yesPsychiatry and Clinical Psychopharmacology, 2021
Objective: There are increasing clues related to the fact that oxidative stress has a role in physiopathology of schizophrenia. On the other hand, the studies comparing oxidative stress in schizophrenia in relevance to the state of ilness whether ...
Ümit Sertan Çöpoğlu   +5 more
doaj  

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

open access: yesFEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane   +11 more
wiley   +1 more source

The Application of a Statistical Model Investigating Reactive Oxygen Species in Premature Ageing Syndromes [PDF]

open access: yes, 2011
The premature ageing syndromes Hutchison-Gilford Progeria Syndrome (HGPS) and Restrictive Dermopathy (RD) are rare genetic disorders that result in greatly accelerated ageing. RD is neonatal fatal, whereas children suffering from HGPS age approximately 8
MUTER, JOANNE,RUTH
core  

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

open access: yesFEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho   +4 more
wiley   +1 more source

Covalent modifications of albumin CYS34 as biomarker of oxidative stress

open access: yes, 2011
Protein carbonylation is an irreversible process, induced by oxidants and reactive carbonyl species (RCS), the latter deriving from lipid peroxidation and oxidation of reducing sugars.
G. Aldini
core  

Biosensing of DNA oxidative damage: a model of using glucose meter for non-glucose biomarker detection

open access: yes, 2017
Xuena Zhu,1 Mehenur Sarwar,1 Qiaoli Yue,2 Chunying Chen,3 Chen-Zhong Li1,4 1Nanobioengineering/Bioelectronics Laboratory, Department of Biomedical Engineering, Florida International University, Miami, FL, USA; 2Department of Chemistry, College of ...
Sarwar M   +9 more
core   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

open access: yesFEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer   +7 more
wiley   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

Time course of oxidative damage in different brain regions following transient cerebral ischemia in gerbils

open access: yes, 2001
The time course of oxidative damage in different brain regions was investigated in the gerbil model of transient cerebral ischemia. Animals were subjected to both common carotid arteries occlusion for 5 min.
Candelario-Jalil, Eduardo   +4 more
core  

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