.../GPB5 signaling is crucial for regulating diuresis in Rhodnius prolixus , influencing fluid secretion and the interplay of diuretic and antidiuretic hormones during blood feeding. Triatomine Diuretic hormones Serotonin Feeding Diuresis Natural Sciences and Engineering Research...

... with potential structure–function alterations. HPLC measurements in brains of four A. mexicanus genetic lines (mutant and non-mutant cavefish, and mutant and non-mutant surface fish) showed major disturbances in serotonin, dopamine, noradrenaline and metabolite levels in mutants and demonstrated that the P106L...

... of the maze, an anxiety-like behavior induced by stressors or physiological conditions in other crustaceans. The training-dependent anxiety-like behavior was blocked by pretraining administration of fluoxetine, suggesting an underlying serotonin-dependent phenomenon. We hypothesize that this training-induced...

... serotonin (5-hydroxytryptamine or 5HT) levels in the H. verbana CNS. Injection of 5HT mimicked the effects of the electroshocks, sensitizing responses to non-nociceptive stimuli and having no effect on responses to nociceptive stimuli. Injections of the 5HT receptor antagonist methysergide reduced...

... and the facilitating effect of 10 μmol l −1 dopamine was similar to that of 1 μmol l −1 serotonin, functional interactions among dopamine, octopamine and serotonin were analyzed by co-injection of amines with their receptor antagonists in various combinations. The inhibitory effect of 1 μmol l −1 dopamine disappeared...

... of stimulation. To reveal the neuronal mechanisms underlying this defensive behavior, the effect of brain biogenic amines on the responses to tactile stimuli were investigated. The levels of octopamine (OA), dopamine (DA) and serotonin (5HT) in the brain were significantly elevated in ants that responded...

...Constance Pierre; Naomie Pradère; Cynthia Froc; Patricia Ornelas-García; Jacques Callebert; Sylvie Rétaux ABSTRACT The neurotransmitter serotonin controls a variety of physiological and behavioral processes. In humans, mutations affecting monoamine oxidase (MAO), the serotonin-degrading enzyme...

...Andrew N. Bubak; Michael J. Watt; Jazmine D. W. Yaeger; Kenneth J. Renner; John G. Swallow ABSTRACT Serotonin (5-HT) has largely been accepted to be inhibitory to vertebrate aggression, whereas an opposing stimulatory role has been proposed for invertebrates. Herein, we argue that critical gaps...

... of monoamines in explaining individual variation in personality, using two common pharmaceuticals that respectively alter the levels of serotonin and dopamine in the brain: fluoxetine and ropinirole. We exposed three-spined sticklebacks, a species that shows animal personality, to either chemical alone...

... neuropeptide on larval and adult female A. aegypti MTs stimulated with various diuretic factors including serotonin (5-HT), a corticotropin-related factor (CRF) diuretic peptide, a calcitonin-related diuretic hormone (DH 31 ) and a kinin-related diuretic peptide. Overall, our findings establish that Aedae CAPA...

... activity of the medicinal leech. The presence and characteristics of the stomatogastric nervous system, vital for feeding, are reported here for the first time. Feeding Serotonin Dopamine Central pattern generator Decision making Neuromodulation For many decades, the European medicinal...

... genes affecting a variety of behavioural processes, including impulsivity, anxiety and mood fluctuations in both humans and other vertebrates, is the serotonin transporter gene ( SERT / SLC6A ). The aim of this study was to assess an association between SERT genotypes and novelty-seeking and risk-taking...

... flux in plants . In Plant Electrophysiology: Theory and Methods (ed. A. G. Volkov) pp. 73 - 107 . Berlin: Springer. Moffett , S. B. and Moffett , D. F. ( 2005 ). Comparison of immunoreactivity to serotonin, FMRFamide and SCPb in the gut and visceral nervous system of larvae, pupae...

... D. opalescens . Spontaneous TTX-resistant activity of this sort is therefore likely myogenic, and such activity is eliminated in both preparations by serotonin (5-HT), a known inhibitor of chromatophore activity. Immunohistochemical techniques reveal that individual axons containing L-glutamate or 5...

... BDNF Serotonin Many studies have reported consistent and correlated behavioural and physiological traits in vertebrates, including the correlation between dominant behaviour and lower stress reactivity. Notably, individuals perceive and react differently to their environment, and this affects...

... . James , A. N. , Ryan , J. P. and Parkman , H. P. ( 2005 ). Effects of the selective serotonin reuptake inhibitor, fluoxetine, on regional gastric contractility . Neurogastroenterol. Motil.   17 , 76 - 82 . 10.1111/j.1365-2982.2004.00613.x Kellner , M. , Porseryd , T...

... floridanus actively seeks and self-administers morphine even in the absence of caloric value or additional natural reward. Using HPLC equipped with electrochemical detection, the neurochemicals serotonin, octopamine and dopamine were identified and subsequently quantified, establishing the concurrent...

... mmHg. Zebrafish decreased swimming behaviour (i.e. distance, velocity and acceleration) as P O 2 was decreased, with a secondary increase in behaviour near or below threshold P O 2 . In adults that underwent a 10-day intraperitoneal injection regime of 10 μg g −1 serotonin (5-HT) or 20 μg g −1...

... were elicited by injections of the neurotransmitters acetylcholine (ACh) and serotonin (5-HT) but not norepinephrine. Heart rate and respiratory rate increases in response to NaCN could be blocked or reduced by antagonists to ACh (atropine) and/or 5-HT (methysergide). Finally, using...

... mechanisms are responsive to adverse environments and could be involved in the development of chronic aggression. Using both gene candidate and genomic approaches, recent studies have identified epigenetic marks, such as DNA methylation alterations in genes involved in the stress response and the serotonin...