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Brain nonapeptide levels are related to social status and affiliative behaviour in a cooperatively breeding cichlid fish.

Royal Society open science

Reddon AR, O'Connor CM, Marsh-Rollo SE, Balshine S, Gozdowska M, Kulczykowska E.
PMID: 26064593
R Soc Open Sci. 2015 Feb 04;2(2):140072. doi: 10.1098/rsos.140072. eCollection 2015 Feb.

The mammalian nonapeptide hormones, vasopressin and oxytocin, are known to be potent regulators of social behaviour. Teleost fishes possess vasopressin and oxytocin homologues known as arginine vasotocin (AVT) and isotocin (IT), respectively. The role of these homologous nonapeptides in...

Integrating resource defence theory with a neural nonapeptide pathway to explain territory-based mating systems.

Frontiers in zoology

Oldfield RG, Harris RM, Hofmann HA.
PMID: 26813803
Front Zool. 2015 Aug 24;12:S16. doi: 10.1186/1742-9994-12-S1-S16. eCollection 2015.

The ultimate-level factors that drive the evolution of mating systems have been well studied, but an evolutionarily conserved neural mechanism involved in shaping behaviour and social organization across species has remained elusive. Here, we review studies that have investigated...

The role of intercellular channels in the transepithelial transfer of water and sodium in the frog urinary bladder.

The Journal of membrane biology

Jard S, Bourguet J, Favard P, Carasso N.
PMID: 24174234
J Membr Biol. 1971 Dec;4(1):124-47. doi: 10.1007/BF02431966.

Epithelial cells of frog urinary bladders fixed in different physiological states were examined by electron microscopy. It was shown: (1) that when bladders incubated with a hypotonic mucosal medium are water-permeabilized with oxytoxin, arginine-vasotocin, cyclic 3',5'-AMP and theophylline, this...

Distribution of vasotocin- and vasoactive intestinal peptide-like immunoreactivity in the brain of blue tit (Cyanistes coeruleus).

Frontiers in neuroanatomy

Montagnese CM, Székely T, Csillag A, Zachar G.
PMID: 26236200
Front Neuroanat. 2015 Jul 14;9:90. doi: 10.3389/fnana.2015.00090. eCollection 2015.

Blue tits (Cyanistes coeruleus) are songbirds, used as model animals in numerous studies covering a wide field of research. Nevertheless, the distribution of neuropeptides in the brain of this avian species remains largely unknown. Here we present some of...

Behavioral relevance of species-specific vasotocin anatomy in gregarious finches.

Frontiers in neuroscience

Kelly AM, Goodson JL.
PMID: 24381536
Front Neurosci. 2013 Dec 17;7:242. doi: 10.3389/fnins.2013.00242. eCollection 2013.

Despite substantial species differences in the vasotocin/vasopressin (VT/VP) circuitry of the medial bed nucleus of the stria terminalis (BSTm) and lateral septum (LS; a primary projection target of BSTm VT/VP cells), functional consequences of this variation are poorly known....

Hormonal regulation of metabolism in hepatocytes of the ureogenic teleostopsanus beta.

Fish physiology and biochemistry

Mommsen TP, Danulat E, Walsh PJ.
PMID: 24213715
Fish Physiol Biochem. 1991 Jun;9(3):247-52. doi: 10.1007/BF02265145.

Short-term exposure of isolated toadfish hepatocytes to high concentrations (100 nM) of glucagon, glucagon-like peptide (GLP) or epinephrine significantly increases the rate of lactate gluconeogenesis (1.3-fold) and glycogenolysis (5- to 7-fold). Half-maximal responsiveness to GLP is reached at about...

Sensitive Periods, Vasotocin-Family Peptides, and the Evolution and Development of Social Behavior.

Frontiers in endocrinology

Baran NM.
PMID: 28824549
Front Endocrinol (Lausanne). 2017 Aug 02;8:189. doi: 10.3389/fendo.2017.00189. eCollection 2017.

Nonapeptides, by modulating the activity of neural circuits in specific social contexts, provide an important mechanism underlying the evolution of diverse behavioral phenotypes across vertebrate taxa. Vasotocin-family nonapeptides, in particular, have been found to be involved in behavioral plasticity...

Arginine Vasotocin Preprohormone Is Expressed in Surprising Regions of the Teleost Forebrain.

Frontiers in endocrinology

Rodriguez-Santiago M, Nguyen J, Winton LS, Weitekamp CA, Hofmann HA.
PMID: 28855890
Front Endocrinol (Lausanne). 2017 Aug 14;8:195. doi: 10.3389/fendo.2017.00195. eCollection 2017.

Nonapeptides play a fundamental role in the regulation of social behavior, among numerous other functions. In particular, arginine vasopressin and its non-mammalian homolog, arginine vasotocin (AVT), have been implicated in regulating affiliative, reproductive, and aggressive behavior in many vertebrate...

Vasotocin receptor blockade disrupts maternal care of offspring in a viviparous snake, .

Biology open

Lind CM, Birky NK, Porth AM, Farrell TM.
PMID: 28069591
Biol Open. 2017 Feb 15;6(2):283-289. doi: 10.1242/bio.022616.

Parental care is a complex social behavior that is widespread among vertebrates. The neuroendocrine regulation of parent-offspring social behavior has been well-described in mammals, and to a lesser extent, in birds and fish. However, little is known regarding the...

Oxytocin-like signaling in ants influences metabolic gene expression and locomotor activity.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology

Liutkevičiūtė Z, Gil-Mansilla E, Eder T, Casillas-Pérez B, Di Giglio MG, Muratspahić E, Grebien F, Rattei T, Muttenthaler M, Cremer S, Gruber CW.
PMID: 29939785
FASEB J. 2018 Jun 25;fj201800443. doi: 10.1096/fj.201800443. Epub 2018 Jun 25.

Ants are emerging model systems to study cellular signaling because distinct castes possess different physiologic phenotypes within the same colony. Here we studied the functionality of inotocin signaling, an insect ortholog of mammalian oxytocin (OT), which was recently discovered...

Differential responses of the vasotocin 1a receptor (V1aR) and osmoreceptors to immobilization and osmotic stress in sensory circumventricular organs of the chicken (Gallus gallus) brain.

Brain research

Aman NA, Nagarajan G, Kang SW, Hancock M, Kuenzel WJ.
PMID: 27559012
Brain Res. 2016 Oct 15;1649:67-78. doi: 10.1016/j.brainres.2016.08.028. Epub 2016 Aug 21.

Past studies have shown that the avian vasotocin 1a receptor (V1aR) is involved in immobilization stress. It is not known whether the receptor functions in osmotic stress, and if sensory circumventricular organs may be involved. An experiment was designed...

Molecular evolution of the neurohypophysial hormones: The active peptides of a primitive bony fish Polypterus bichir.

FEBS letters

Acher R, Chauvet J, Chauvet M.
PMID: 11945519
FEBS Lett. 1970 Dec 18;11(5):332-335. doi: 10.1016/0014-5793(70)80561-0.

Neurohypophysial hormones have been so far identified in Neopterygii and Crossopterygii but not in species of the bird sub-class of bony fishes, the Palaeopterygii. Isolation and chemical characterization of the active principles of a primitive bony fish, Polypterus bichir,...

Showing 1 to 12 of 68 entries