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Keywords: Fasting
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Journal Articles
J Exp Biol (2022) 225 (12): jeb244222.
Published: 22 June 2022
...Anna S. Przybylska-Piech; Małgorzata Jefimow ABSTRACT Nonresponding Siberian hamsters ( Phodopus sungorus ) do not develop the winter phenotype of white fur, low body mass ( M b ) and spontaneous torpor in response to short photoperiod. However, their thermoregulatory response to fasting remains...
Journal Articles
J Exp Biol (2022) 225 (4): jeb243115.
Published: 24 February 2022
... facing metabolic trade-offs (reduced energy supply/increased energy demand) favor a regulated hypothermic response at the expense of fever. To test this hypothesis, we compared 5 day old broiler chicks exposed to fasting, cold (25°C), and fasting combined with cold with a control group fed under...
Includes: Supplementary data
Journal Articles
J Exp Biol (2022) 225 (1): jeb242567.
Published: 6 January 2022
...Ignacio Simó; Mariano Faggiani; Daniel A. Fernandez; Andrés A. Sciara; Silvia E. Arranz ABSTRACT This study evaluates white muscle growth and in vivo cell proliferation during a fasting and refeeding trial, using pejerrey ( Odontesthes bonariensis ) as animal model, in order to better understand...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (22): jeb243153.
Published: 25 November 2021
... feeding. However, little is known about the endocrine and immune modulation in the postprandial period of ectothermic animals. This study investigated the effects of feeding on endocrine and immune responses in the bullfrog ( Lithobates catesbeianus ). Frogs were fasted for 10 days and divided into two...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (21): jeb243142.
Published: 5 November 2021
..., and therefore we investigated mitochondrial function plasticity in these states. Herein, we compared liver mitochondrial bioenergetics of the boid snake Boa constrictor during fasting and after meal intake. We fasted the snakes for 60 days, and then we fed a subgroup with 30% of their body size and evaluated...
Journal Articles
J Exp Biol (2021) 224 (20): jeb243062.
Published: 28 October 2021
... well-controlled laboratory conditions certainly contains caveats. Regardless, we were unable to observe any βHB in any of the dolphin livers. Additionally, a recent study utilizing untargeted metabolomics did not observe βHB in the serum of fasted dolphins ( Houser et al., 2021 ). These data show...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (1): jeb184895.
Published: 1 January 2019
... associated with extended fasting. Overall, the capital–income breeding concept applies equally to male reproduction, but compared with females, there are different physical and physiological constraints that shape choice of strategy. This Commentary also highlights some key future areas that need...
Journal Articles
J Exp Biol (2017) 220 (23): 4330–4338.
Published: 1 December 2017
...), refeeding when food becomes available (during which body mass is regained), and finally recovery (the period after which body mass has stabilized and any starvation-induced damage is repaired) ( Fig. 1 A). Several reviews summarize the responses that humans and other animals have to fasting...
Journal Articles
J Exp Biol (2017) 220 (13): 2380–2386.
Published: 1 July 2017
... prone to using facultative heterothermy than generalists. We tested this hypothesis at the intraspecific level using male laboratory mice (C57BL/cmdb) fasted under different thermal conditions (20 and 10°C) and for different time periods (12–48 h). We predicted that variability of body temperature ( T b...
Journal Articles
J Exp Biol (2017) 220 (12): 2196–2202.
Published: 15 June 2017
... that this species resembles bears in the preservation of bone mass and biomechanical properties during prolonged passivity and catabolism. This longitudinal study examined the osteological properties of tibiae in farm-bred raccoon dogs that were either fed or fasted ( n =6 per group) for a 10 week period...
Journal Articles
J Exp Biol (2017) 220 (5): 837–843.
Published: 1 March 2017
...-living African striped mice: a negative relationship exists in the moist season but not the dry season. Triiodothyronine Metabolism Energetics Fasting Starvation Drought Thyroid hormones are important regulatory hormones that affect a multitude of physiological processes...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (2): 237–246.
Published: 15 January 2017
... and attempted to replicate these in non-parasitized fish by exposing them to treatments including immunity activation and fasting, or by pharmacologically inhibiting the stress axis. All fish were screened for the following behaviours: activity, water depth preference, sociability, phototaxis, anti-predator...
Includes: Supplementary data
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J Exp Biol (2014) 217 (17): 3015–3027.
Published: 1 September 2014
...Jeroen Brijs; Grant W. Hennig; Michael Axelsson; Catharina Olsson This is the first study to catalogue the diverse array of in vivo motility patterns in a teleost fish and how they are affected by feeding. Video recordings of exteriorised proximal intestine from fasted and fed shorthorn sculpin...
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J Exp Biol (2012) 215 (3): 508–517.
Published: 1 February 2012
... hydrodynamic radius. Response patterns were similar in seawater and freshwater preparations, though water absorption and PEG-900 permeability were greater in the latter. Despite up to 4-fold variations in absorptive water flux associated with feeding and fasting (highest at 1–3 h, lowest at 12–24 h...
Journal Articles