Results 51 to 60 of about 29,019 (254)

Identification and Biological Characterization of a Novel NRF2 Activator Molecule Released From the Membranes of Heat‐Treated Bifidobacterium breve NCC 2950

open access: yesMolecular Nutrition &Food Research, EarlyView.
We have shed light on the mode of action behind the postbiotic form of Bifidobacterium breve NCC 2950. Heat treatment of this strain at 90°C leads to the production of 4‐oxo‐2‐pentenoic acid (OPA), which activates NRF2 host response, improving oxidative stress resistance and decreasing inflammation. ABSTRACT Postbiotics are defined as a “preparation of
Francis Foata   +11 more
wiley   +1 more source

Oxygen availability strongly affects chronological lifespan and thermotolerance in batch cultures of Saccharomyces cerevisiae

open access: yesMicrobial Cell, 2015
Stationary-phase (SP) batch cultures of Saccharomyces cerevisiae, in which growth has been arrested by carbon-source depletion, are widely applied to study chronological lifespan, quiescence and SP-associated robustness.
Markus M.M. Bisschops   +5 more
doaj   +1 more source

Morphological and Phenological Responses of Eragrostis plana Nees and Eragrostis pilosa (L.) P. Beauv. Plants Subjected to Different Soil Moisture Conditions [PDF]

open access: yesPlanta Daninha, 2019
: Experiments were run in a greenhouse where samples of Eragrostis pilosa and Eragrostis plana, species that infest rice crops, were subjected to three soil moisture conditions (50% of soil water retention capacity (WRC), 100% of WRC, 10 cm water depth),
B.W. CARLOTO   +5 more
doaj   +1 more source

Incorporation in vitro of labeled amino acids into bone marrow cell proteins [PDF]

open access: yes, 1950
Nearly all experiments on the incorporation of labeled amino acids into tissue proteins in vitro have been done on tissues whose cell structure has been partially or completely disintegrated, e.g. tissue slices, segments, or homogenates.
Borsook, Henry   +4 more
core  

Increased hydrogen production by Escherichia coli strain HD701 in comparison with the wild-type parent strain MC4100 [PDF]

open access: yes, 2003
Hydrogen production by Escherichia coli is mediated by the formate hydrogenlyase (FHL) complex. E. coli strain HD701 cannot synthesize the FHL complex repressor, Hyc A.
Forster, CF, Macaskie, LE, Penfold, DW
core   +1 more source

Comparison of Micro‐CT and Morphometric Outcomes in a Modified Experimental Rat Model of Periodontitis

open access: yesJournal of Periodontal Research, EarlyView.
Experimental periodontitis model was induced with oral gavages with Porphyromonas gingivalis and Fusobacterium nucleatum over 4 (P + 4 w), 8 (P + 8 w) and 12 (P + 12 w) weeks. Bone levels were measured with micro‐CT (linear and volumetric variables) and microscope (linear morphometric measurements) at the mandible first molar. Clinical variables—plaque
Jaime Bueno   +15 more
wiley   +1 more source

Bacillus cereus Fnr binds a [4Fe-4S] cluster and forms a ternary complex with ResD and PlcR

open access: yesBMC Microbiology, 2012
Background Bacillus cereus is a facultative anaerobe that causes diarrheal disease in humans. Diarrheal syndrome may result from the secretion of various virulence factors including hemolysin BL and nonhemolytic enterotoxin Nhe.
Esbelin Julia   +2 more
doaj   +1 more source

Effects of Low pH on Lactate Dehydrogenase Kinetics of Diving and Nondiving Reptiles [PDF]

open access: yes, 1986
The properties of lactate dehydrogenase were examined in two snake species, Nerodia rhombifera and Elaphe obsoleta, and a turtle species, Pseudemys scripta.
Baeyens, Dennis A., Hurley, Salim R.
core   +2 more sources

Characterization of novel beta-galactosidase activity that contributes to glycoprotein degradation and virulence in Streptococcus pneumoniae.

open access: yes, 2009
The pneumococcus obtains its energy from the metabolism of host glycosides. Therefore, efficient degradation of host glycoproteins is integral to pneumococcal virulence.
Andrew, Peter W   +4 more
core   +2 more sources

A comparison of hydrogen photoproduction by sulfur-deprived Chlamydomonas reinhardtii under different growth conditions [PDF]

open access: yes, 2022
Continuous photoproduction of H-2 by the green alga, Chlamydomonas reinhardtii, is observed after incubating the cultures for about a day in the absence of sulfate and in the presence of acetate.
Ghirardi ML   +4 more
core   +1 more source

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