Results 41 to 50 of about 5,986,901 (283)

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Time line of redox events in aging postmitotic cells

eLife, 2013
The precise roles that oxidants play in lifespan and aging are still unknown. Here, we report the discovery that chronologically aging yeast cells undergo a sudden redox collapse, which affects over 80% of identified thiol-containing proteins. We present
Nicolas Brandes, Heather Tienson, Antje Lindemann, Victor Vitvitsky, Dana Reichmann, Ruma Banerjee, Ursula Jakob   +6 more
doaj   +1 more source

Dietary fat supplements influence weight gain and egg production, but not offspring sex ratios in Japanese quail, Coturnix coturnix japonica

Journal of Avian Biology, 2023
Sex ratio theory suggests that females should bias offspring sex ratios based on maternal condition and the availability of critical food resources. Work in birds indicates that females do, indeed, bias sex ratios according to maternal condition and food
James Curry, Woo Yun Kim, Mary T. Mendonça, Kristen J. Navara   +3 more
doaj   +1 more source

Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

Biosensors, 2021
Vital signs not only reflect essential functions of the human body but also symptoms of a more serious problem within the anatomy; they are well used for physical monitoring, caloric expenditure, and performance before a possible symptom of a massive ...
Christian Perezcampos Mayoral, Jaime Gutiérrez Gutiérrez, José Luis Cano Pérez, Marciano Vargas Treviño, Itandehui Belem Gallegos Velasco, Pedro António Hernández Cruz, Rafael Torres Rosas, Lorenzo Tepech Carrillo, Judith Arnaud Ríos, Edmundo López Apreza, Roberto Rojas Laguna   +10 more
doaj   +1 more source

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

Oxi-Inflamm-Aging: a New Theory with Practical Implications

Medisur, 2016
Oxidative stress causes an impairment of the physiological systems essential for maintaining homeostasis, including the immune system. Immune dysregulation leads to a chronic low-grade inflammatory state in aging. This is the basis of the new integrative
Ángel Julio Romero Cabrera, Leocadia Amores Hernández   +1 more
doaj   +2 more sources

Historical analysis of the concept of Heat in Joule`s papers and possible implications for Physical Education

Investigações em Ensino de Ciências, 2017
This paper aimed to carry out an analysis of Joule’s original texts, written in the middle of the XIX century, trying to understand how the changes in heat concept occurred throughout his work. To support the theoretical analysis, a literature review was
Bianca Cintra de Carvalho, Luciano Carvalhais Gomes   +1 more
doaj   +1 more source

Mitochondrial fatty acid oxidation is stimulated by red light irradiation

FEBS Letters, EarlyView.
Light at different wavelengths has distinct effects on keratinocyte viability and metabolism. UVA light abrogates metabolic fluxes. Blue and green light have no effect on metabolic fluxes, while red light enhanced oxidative phosphorylation by promoting fatty acid oxidation. Keratinocytes are the primary constituents of sunlight‐exposed epidermis.
Manuel Alejandro Herrera, Camille C. Caldeira da Silva, Maiza Von Dentz, Mauricio S. Baptista, Alicia J. Kowaltowski   +4 more
wiley   +1 more source

The metabolic underpinnings of temperature-dependent predation in a key marine predator

Frontiers in Marine Science, 2023
IntroductionChanges in temperature can fundamentally transform how species interact, causing wholesale shifts in ecosystem dynamics and stability. Yet we still have a limited understanding of how temperature-dependence in physiology drives temperature ...
Samantha R. Csik, Bartholomew P. DiFiore, Krista Kraskura, Emily A. Hardison, Joseph S. Curtis, Erika J. Eliason, Erika J. Eliason, Adrian C. Stier, Adrian C. Stier   +8 more
doaj   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source