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Oxidative stress across multiple tissues in house sparrows (Passer domesticus) acclimated to warm, stable cold, and unpredictable cold thermal treatments
With climate change increasing not just mean temperatures but the frequency of cold snaps and heat waves, animals occupying thermally variable areas...
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A Critical Review of Short Antimicrobial Peptides from Scorpion Venoms, Their Physicochemical Attributes, and Potential for the Development of New Drugs
Scorpion venoms have proven to be excellent sources of antimicrobial agents. However, although many of them have been functionally characterized,...
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Silencing of ultradian rhythms and metabolic depression during spontaneous daily torpor in Djungarian hamsters
Ultradian rhythms of metabolism, body temperature and activity are attenuated or disappear completely during torpor in Djungarian hamsters, for all...
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Sperm-Specific CatSper is Not Conserved in All Vertebrates and May Not be the Only Progesterone-Responsive Ion Channel Present in Sperm
Progesterone (P4) acts as a key conserved signalling molecule in vertebrate reproduction. P4 is especially important for mature sperm physiology and...
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Multiple ultradian rhythms of metabolism, body temperature and activity in Djungarian hamsters
Djungarian hamsters (Phodopus sungorus) living at constant 15 °C T a in short photoperiod (8:16 h L:D) showed pronounced ultradian rhythms (URs) of...
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N-Glycosylation Deficiency in Transgene α7 nAChR and RIC3 Expressing CHO Cells Without NACHO
The human neuronal nicotinic acetylcholine receptor α7 (nAChR) is an important target implicated in diseases like Alzheimer’s or Parkinson’s, as well...
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Can photoperiod improve growth performance and antioxidant responses of pacu (Piaractus mesopotamicus) reared in recirculation aquaculture systems?
The present study investigated the best photoperiod for culturing pacu ( Piaractus mesopotamicus ) in recirculation aquaculture systems (RAS) based on...
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Effects of low temperature on growth and metabolism of larval green sturgeon (Acipenser medirostris) across early ontogeny
Southern Distinct Population Segment (sDPS) green sturgeon spawn solely in one stretch of the Sacramento River in California. Management of this...
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Flexible males, reactive females: faecal glucocorticoid metabolites indicate increased stress in the colonist population, dam** with time in males but not in females
Individuals colonizing new areas at expanding ranges encounter numerous and unpredictable stressors. Exposure to unfamiliar environments suggests...
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Trace metals in the teleost fish gill: biological roles, uptake regulation, and detoxification mechanisms
In fish, the gill plays a vital role in regulating the absorption of trace metals and is also highly susceptible to metal toxicity. Trace metals such...
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Aggregation Behavior of Amyloid Beta Peptide Depends Upon the Membrane Lipid Composition
Protein aggregation plays a crucial role in the development of several neurodegenerative diseases. It is important to understand the aggregation...
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Occasional and constant exposure to dietary ethanol shortens the lifespan of worker honey bees
Honey bees ( Apis mellifera ) are one of the most crucial pollinators, providing vital ecosystem services. Their development and functioning depend on...
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Impact of absolute food deprivation on the reproductive system in male goldfish exposed to sex steroids
There is a link between metabolism and reproduction as metabolic hormones affect hypothalamus-pituitary-testis (HPT) hormonal functions and vice...
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Introduction and reflections on the comparative physiology of sleep and circadian rhythms
Circadian rhythms and the sleep/wake cycle allows us, and most life on Earth, to function optimally in a dynamic world, adjusting all aspects of...
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Ammonia excretion by the fish gill: discoveries and ideas that shaped our current understanding
The fish gill serves many physiological functions, among which is the excretion of ammonia, the primary nitrogenous waste in most fishes. Although it...
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The physiological significance of plasma-accessible carbonic anhydrase in the respiratory systems of fishes
Carbonic anhydrase (CA) activity is ubiquitously found in all vertebrate species, tissues and cellular compartments. Most species have...
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Influence of stimulation frequency on brain-derived neurotrophic factor and cathepsin-B production in healthy young adults
Electrical muscle stimulation (EMS) has been shown to stimulate the production of myokines (i.e., brain-derived neurotrophic factor (BDNF)), but the...
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Cellular mechanisms of ion and acid-base regulation in teleost gill ionocytes
The mechanism(s) of sodium, chloride and pH regulation in teleost fishes has been the subject of intense interest for researchers over the past 100...
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Effects of structural remodelling on gill physiology
The complex relationships between the structure and function of fish gills have been of interest to comparative physiologists for many years....
