Results 61 to 70 of about 362,750 (249)

Oral Toxicity of Okadaic Acid in Mice: Study of Lethality, Organ Damage, Distribution and Effects on Detoxifying Gene Expression

open access: yesToxins, 2013
In vivo, after administration by gavage to mice and rats, okadaic acid has been reported to produce lesions in liver, small intestine and forestomach.
Luis M. Botana   +9 more
doaj   +1 more source

A Multichannel Calorimetric Simultaneous Assay Platform Using a Microampere Constant-Current Looped Enthalpy Sensor Array

open access: yesSensors, 2017
Calorimetric biochemical measurements offer various advantages such as low waste, low cost, low sample consumption, short operating time, and labor-savings. Multichannel calorimeters can enhance the possibility of performing higher-throughput biochemical
Hsien-Chin Wei   +3 more
doaj   +1 more source

<em>Bacillus anthracis</em> Factors for Phagosomal Escape

open access: yesToxins, 2012
The mechanism of phagosome escape by intracellular pathogens is an important step in the infectious cycle. During the establishment of anthrax, <em>Bacillus anthracis</em> undergoes a transient intracellular phase in which spores are engulfed
Irene Zornetta, Fiorella Tonello
doaj   +1 more source

A Review on Direct Electrochemistry of Catalase for Electrochemical Sensors

open access: yesSensors, 2009
Catalase (CAT) is a heme enzyme with a Fe(III/II) prosthetic group at its redox centre. CAT is present in almost all aerobic living organisms, where it catalyzes the disproportionation of H2O2 into oxygen and water without forming free radicals. In order
Periasamy Arun Prakash   +2 more
doaj   +1 more source

Requirement of a Plasmid-Encoded Catalase for Survival of \u3cem\u3eRhizobium etli\u3c/em\u3e CFN42 in a Polyphenol-Rich Environment [PDF]

open access: yes, 2008
Nitrogen-fixing bacteria collectively called rhizobia are adapted to live in polyphenol-rich environments. The mechanisms that allow these bacteria to overcome toxic concentrations of plant polyphenols have not been clearly elucidated.
Brom, Susana   +5 more
core   +1 more source

In vitro ion chelating, antioxidative mechanism of extracts from fruits and barks of tetrapleura tetraptera and their protective effects against fenton mediated toxicity of metal ions on liver homogenates [PDF]

open access: yes, 2015
The aim of the present study was to investigate the antioxidant activity and protective potential of T. tetraptera extracts against ion toxicity. The antioxidant activity of the extracts was investigated spectrophotometrically against several radicals (1,
Biapa, P. C. N.   +6 more
core   +3 more sources

Acetaldehyde involvement in ethanol's postabsortive effects during early ontogeny [PDF]

open access: yes, 2013
Clinical and biomedical studies sustains the notion that early ontogeny is a vulnerable window to the impact of alcohol. Experiences with the drug during these stages increase latter disposition to prefer, use or abuse ethanol.
Abate, Paula   +2 more
core   +1 more source

Plant catalases as NO and H2S targets

open access: yesRedox Biology, 2020
Catalase is a powerful antioxidant metalloenzyme located in peroxisomes which also plays a central role in signaling processes under physiological and adverse situations. Whereas animals contain a single catalase gene, in plants this enzyme is encoded by a multigene family providing multiple isoenzymes whose number varies depending on the species, and ...
Palma, José M.   +6 more
openaire   +8 more sources

Mechanisms underlying the exquisite sensitivity of Candida albicans to combinatorial cationic and oxidative stress that enhances the potent fungicidal activity of phagocytes [PDF]

open access: yes, 2014
Copyright © 2014 Kaloriti et al.Peer reviewedPublisher ...
Bohovych, Iryna   +15 more
core   +2 more sources

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