Results 31 to 40 of about 48,904 (249)

Phylogeography, genetic diversity, and connectivity of brown bear populations in Central Asia.

PLoS ONE, 2019
Knowledge of genetic diversity and population structure is critical for conservation and management planning at the population level within a species' range.
Odbayar Tumendemberel, Andreas Zedrosser, Michael F Proctor, Harry V Reynolds, Jennifer R Adams, Jack M Sullivan, Sarah J Jacobs, Tumennasan Khorloojav, Tuya Tserenbataa, Mijiddorj Batmunkh, Jon E Swenson, Lisette P Waits   +11 more
doaj   +1 more source

Intrinsic and extrinsic factors influence on an omnivore's gut microbiome.

PLoS ONE, 2022
Gut microbiomes (GMBs), complex communities of microorganisms inhabiting the gastrointestinal tracts of their hosts, perform countless micro-ecosystem services such as facilitating energy uptake and modulating immune responses.
Sarah M Trujillo, Erin A McKenney, Grant V Hilderbrand, Lindsey S Mangipane, Matthew C Rogers, Kyle Joly, David D Gustine, Joy A Erlenbach, Buck A Mangipane, Diana J R Lafferty   +9 more
doaj   +1 more source

Integrating emotional affect into bear viewing management and bear safety education

Ecology and Society, 2021
The popularity of viewing wildlife, specifically brown bears (Ursus arctos), is increasing rapidly throughout North America. In addition, population distributions of both humans and brown bears are expanding, creating larger areas of overlap and an ...
John M. Nettles, Matthew T. J. Brownlee, Jeffrey C. Hallo, David S. Jachowski, Ryan L. Sharp   +4 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Partial genomic survival of cave bears in living brown bears [PDF]

Nature Ecology & Evolution, 2018
Although many large mammal species went extinct at the end of the Pleistocene epoch, their DNA may persist due to past episodes of interspecies admixture. However, direct empirical evidence of the persistence of ancient alleles remains scarce. Here, we present multifold coverage genomic data from four Late Pleistocene cave bears (Ursus spelaeus complex)
Barlow, Axel, Cahill, James A., Hartmann, Stefanie, Theunert, Christoph, Xenikoudakis, Georgios, Fortes, Gloria G., Paijmans, Johanna L. A., Rabeder, Gernot, Frischauf, Christine, Grandal-d’Anglade, Aurora, García-Vázquez, Ana, Murtskhvaladze, Marine, Saarma, Urmas, Anijalg, Peeter, Skrbinšek, Tomaž, Bertorelle, Giorgio, Gasparian, Boris, Bar-Oz, Guy, Pinhasi, Ron, Slatkin, Montgomery, Dalén, Love, Shapiro, Beth, Hofreiter, Michael   +22 more
openaire   +8 more sources

Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer

Molecular Oncology, EarlyView.
Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source

Are grizzly bear and brown bear the same?

, 2023
Similarities and differences between Grizzly and Brown bears Grizzly bear and brown bear are two of the most iconic bear species that are often confused as being the same. While they do share many similarities, they are actually two different subspecies of the same species, Ursus arctos.
openaire   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling, Mark D. Parker, Sven Kerst, Richard A. Pasternack, Jacob Tondreau, Marjolein Breur, Gemma M. van Rooijen‐van Leeuwen, Davide Tonduti, Ettore Salsano, Alejandra Darling, Joanna A. E. van Wijk, Susanna Törnroth‐Horsefield, Marianna Bugiani, Petra J. W. Pouwels, Quinten Waisfisz, Marjo S. van der Knaap, Rogier Min   +16 more
wiley   +1 more source

Nutrient intake and its possible drivers in free‐ranging European brown bears (Ursus arctos arctos)

Ecology and Evolution, 2023
The dietary nutrient profile has metabolic significance and possibly contributes to species' foraging behavior. The brown bear (Ursus arctos) was used as a model species for which dietary ingredient and nutrient concentrations as well as nutrient ratios ...
Annelies De Cuyper, Diederik Strubbe, Marcus Clauss, Luc Lens, Andreas Zedrosser, Sam Steyaert, Leen Verbist, Geert P. J. Janssens   +7 more
doaj   +1 more source

Temporomandibular Joint Pathology of Wild Carnivores in the Western USA

Frontiers in Veterinary Science, 2021
Skull specimens from: southern sea otter (Enhydra lutris nereis), Eastern Pacific harbor seal (Phoca vitulina), California sea lion (Zalophus californianus), northern fur seal (Callorhinus ursinus), walrus (Odobenus rosmarus), polar bear (Ursus maritimus)
Siobhan S. Rickert, Philip H. Kass, Frank J. M. Verstraete   +2 more
doaj   +1 more source