Results 71 to 80 of about 6,193,275 (288)

Inhaled microcystin-LR may induce acute liver failure through hepatic congestion

open access: yesEcotoxicology and Environmental Safety
As cyanobacteria growth increases due to climate change, health issues resulting from exposure to microcystin-leucine-arginine (MC-LR), a toxin produced by cyanobacteria, are becoming a pressing public health concern.
Wonkyun Jung   +10 more
doaj   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

open access: yesFEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk   +11 more
wiley   +1 more source

Green tea polyphenolic antioxidants oxidize hydrogen sulfide to thiosulfate and polysulfides: A possible new mechanism underpinning their biological action

open access: yesRedox Biology, 2020
Matcha and green tea catechins such as (−)-epicatechin (EC), (−)-epigallocatechin (EGC) and (−)-epigallocatechin gallate (EGCG) have long been studied for their antioxidant and health-promoting effects.
Kenneth R. Olson   +12 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Reactive oxygen species and sperm cells

open access: yesReproductive Biology and Endocrinology, 2004
There is a dynamic interplay between pro- and anti-oxidant substances in human ejaculate. Excessive reactive oxygen species (ROS) generation can overwhelm protective mechanism and initiate changes in lipid and/or protein layers of sperm plasma membranes.
Kurpisz Maciej, Sanocka Dorota
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Carbon nanotubes induce inflammation but decrease the production of reactive oxygen species in lung [PDF]

open access: yes, 2010
With the rapid spread of carbon nanotubes (CNTs) applications, the respiratory toxicity of these compounds has attracted the attention of many scientists. Several studies have reported that after lung administration, CNTs could induce granuloma, fibrosis,
Gentilhomme, Edgar   +7 more
core   +1 more source

Galantamine-loaded PLGA nanoparticles reduce oxidative stress and inflammation in a rat model of spinal cord injury

open access: yesScientific Reports
Spinal cord injury (SCI) represents a debilitating condition with no effective treatments currently available. Previous research demonstrated that galantamine improves functional outcomes in SCI models. However, systemic administration results in limited
Fernanda Stapenhorst Franca   +7 more
doaj   +1 more source

Antimicrobial Actions of Reactive Oxygen Species

open access: yesmBio, 2011
Everything should be as simple as it can be, but not simpler.—Attributed to Albert Einstein (1) IMPORTANCE Reactive oxygen species (ROS) are produced by host phagocytes and exert antimicrobial actions against a broad range of pathogens.
Ferric C. Fang
doaj   +1 more source

Home - About - Disclaimer - Privacy