Results 71 to 80 of about 8,120 (200)

Ketone Esters Partially and Selectively Rescue Mitochondrial Bioenergetics After Acute Cervical Spinal Cord Injury in Rats: A Time-Course

Cells
Spinal cord injury (SCI) pathology and pathophysiology can be attributed to both primary physical injury and secondary injury cascades. Secondary injury cascades involve dysregulated metabolism and energetic deficits directly linked to compromised ...
Oscar Seira, HyoJoon (David) Park, Jie Liu, Michelle Poovathukaran, Kieran Clarke, Robert Boushel, Wolfram Tetzlaff   +6 more
doaj   +1 more source

Intraspecific variation in aerobic and anaerobic locomotion: gilthead sea bream (Sparus aurata) and Trinidadian guppy (Poecilia reticulata) do not exhibit a trade-off between maximum sustained swimming speed and minimum cost of transport.

Frontiers in Physiology, 2015
Intraspecific variation and trade-off in aerobic and anaerobic traits remain poorly understood in aquatic locomotion. Using gilthead sea bream (Sparus aurata) and Trinidadian guppy (Poecilia reticulata), both axial swimmers, this study tested four ...
Jon Christian Svendsen, Jon Christian Svendsen, Bjorn eTirsgaard, G. Antonio eCordero, John Fleng Steffensen   +4 more
doaj   +1 more source

Oxygen consumption from air and water, ammonia and urea‐N excretion, and Na+ fluxes during progressive aquatic hypoxia in Amazonian armoured catfish Pterygoplichthys gibbiceps and Pterygoplichthys pardalis

Journal of Fish Biology, EarlyView.
Abstract The Amazonian loricariid fish Pterygoplichthys gibbiceps, from the Rio Negro, and Pterygoplichthys pardalis, from the Rio Solimões, are facultative air‐breathers that can use the stomach as an air‐breathing organ. Measurement of oxygen uptake under progressive aquatic hypoxia revealed a relatively high hypoxia resistance of both species.
Bernd Pelster, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon

Journal of Fish Biology, EarlyView.
Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster, Chris M. Wood, Adalberto Luis Val   +2 more
wiley   +1 more source

Aerobic scope is sustained through a heatwave in juvenile Atlantic salmon (Salmo salar)

Journal of Fish Biology, EarlyView.
Abstract Aquatic ectotherms are vulnerable to heatwave‐induced physiological stress, which arises from increased energy demands and reduced dissolved oxygen content in warmer waters. Understanding thermal physiology is critical for predicting how commercially and ecologically important populations could be affected by the increasing risk of rising ...
Lucy Cotgrove, Sergey Morozov, Miika Raitakivi, Evan Sala, Jenni M. Prokkola   +4 more
wiley   +1 more source

The impact of isosmotic conditions on the metabolism and hypoxia tolerance of a reportedly oxyconforming teleost

Journal of Fish Biology, EarlyView.
Abstract Fish must manage the competing demands of ion balance and gas exchange across the gills – a physiological tension known as the osmorespiratory compromise. In dynamic estuarine environments, the osmorespiratory compromise may be exacerbated by variable salinity and periods of hypoxia that demand high respiratory work.
Timothy D. Clark, Luis L. Kuchenmüller, Elizabeth C. Hoots, Maryane Gradito, Jake M. Martin   +4 more
wiley   +1 more source

Bioenergetic signatures of circulating blood cells as biosensors of metabolic health in food-producing animals

Frontiers in Veterinary Science
The intensification of animal production has substantially increased productivity, yet it has concurrently increased the metabolic vulnerability of livestock and poultry. Traditional biomarkers often lack sensitivity and fail to capture early or systemic
Ignacio R. Ipharraguerre, Lorenzo A. Rosales Cavaglieri, Gerald Rimbach   +2 more
doaj   +1 more source

Rapid automated detection of nitrification kinetics using respirometry

Water Science and Technology, 2003
There is no doubt that respirometry is a useful measurement principle in the field of wastewater treatment. Although a large variety of methods and case studies have been published, respirometry has become neither a standard tool for control nor for assessment and optimisation of treatment plants. The drawback of the conventional method for determining
G, Langergraber, M, Wuchty, N, Fleischmann, M, Lechner   +3 more
openaire   +2 more sources

In vitro muscle contraction: A technical review on electrical pulse stimulation in C2C12 cells

Experimental Physiology, EarlyView.
Abstract Electrical pulse stimulation (EPS) of skeletal muscle cells is increasingly used to model exercise In vitro. The murine C2C12 myotube system has become a common platform for such studies, yet wide variability in EPS protocols hampers reproducibility and cross‐study comparisons.
Mark R. C. van de Meene, Anita M. van den Hoek, Roeland Hanemaaijer, Lars Verschuren, Jelle C. B. C. de Jong   +4 more
wiley   +1 more source

The Preservation of Muscle Mitochondrial Machinery During Hypometabolic Hibernation in Scandinavian Brown Bears (Ursus arctos). [PDF]

Acta Physiol (Oxf)
ABSTRACT Aim Unlike humans, brown bears (Ursus arctos) uniquely preserve skeletal muscle mass and function during months of hibernation despite prolonged fasting and inactivity. We investigated how mitochondrial energetics respond in skeletal muscle to support this remarkable resilience.
Bergouignan A, Noone J, Brun C, Cussonneau L, Geffroy A, Coudy-Gandilhon C, Chery I, Evans AL, Arnemo JM, Kindberg J, Gauquelin-Koch G, O'Gorman D, Lefai E, Bertile F.   +13 more
europepmc   +2 more sources