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Hormones and Behavior

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https://www.readbyqxmd.com/read/30025718/acth-induced-model-of-depression-resistant-to-tricyclic-antidepressants-neuroendocrine-and-behavioral-changes-and-influence-of-long-term-magnesium-administration
#1
Jelena Petrović, Dušanka Stanić, Zorica Bulat, Nela Puškaš, Milica Labudović-Borović, Bojan Batinić, Duško Mirković, Svetlana Ignjatović, Vesna Pešić
Magnesium (Mg), is not only a modulator of the glutamatergic NMDA receptors' affinity, it also prevents HPA axis hyperactivity, thus possibly being implicated in neurobiological features of mood disorders. Further uncovering of molecular mechanisms underlying magnesium's proposed effects is needed due to the recent shift in research of treatment resistant depression (TRD) towards glutamatergic pathways. Here, we applied Mg via drinking water for 28 days (50 mg/kg/day), in ACTH-treated rats, an established animal model of depression resistant to tricyclic antidepressants...
July 19, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/30031017/photic-phase-response-curves-for-cycling-female-mice
#2
Shuto Mizuta, Mizuki Sugiyama, Isao T Tokuda, Wataru Nakamura, Takahiro J Nakamura
The photic entrainment system is critical for the internal circadian clock to be synchronized by external time cues. In nocturnal rodents, exposure to light during the early subjective night causes a phase delay, whereas it causes a phase advance during the late subjective night. This is represented by a phase-response curve (PRC). The PRC of females has not been well studied due to their estrous cycles. Our aim in this study was to understand the characteristics of photic entrainment in female cycling rodents and identify differences in photic entrainment among the stages of the estrous cycle...
July 18, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/30028987/sex-differences-in-testosterone-reactivity-during-marital-conflict
#3
Anastasia Makhanova, James K McNulty, Lisa A Eckel, Larissa Nikonova, Jon K Maner
When attempting to resolve relationship problems, individuals in close relationships sometimes challenge their partners with statements that oppose their partner's point of view. Such oppositional behaviors may undermine those partners' relational value and threaten their status within the relationship. We examined whether perceptions of opposition from a partner during a series of problem-solving interactions were associated with reactivity in testosterone levels and whether those associations were different for men and women...
July 17, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29981752/gender-incongruence-and-the-brain-behavioral-and-neural-correlates-of-voice-gender-perception-in-transgender-people
#4
Elke Smith, Jessica Junger, Katharina Pauly, Thilo Kellermann, Joseph Neulen, Christiane Neuschaefer-Rube, Birgit Derntl, Ute Habel
The phenomenon of gender incongruence is hypothesized to arise from a discrepant sexual development of the brain and the genitals, contingent on genetic and hormonal mechanisms. We aimed at visualizing transgender identity on a neurobiological level, assuming a higher functional similarity to individuals of the aspired rather than assigned sex. Implementing a gender perception paradigm featuring male and female voice stimuli, behavioral and functional imaging data of transmen were compared to men and women, and to transwomen, respectively...
July 5, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29964007/is-the-membrane-estrogen-receptor-gper1-a-promiscuous-receptor-that-modulates-nuclear-estrogen-receptor-mediated-functions-in-the-brain
#5
REVIEW
Ruby Vajaria, Nandini Vasudevan
Estrogen signals both slowly to regulate transcription and rapidly to activate kinases and regulate calcium levels. Both rapid, non-genomic signaling as well as genomic transcriptional signaling via intracellular estrogen receptors (ER)s can change behavior. Rapid non-genomic signaling is initiated from the plasma membrane by a G-protein coupled receptor called GPER1 that binds 17β-estradiol. GPER1 or GPR30 is one of the candidates for a membrane ER (mER) that is not only highly expressed in pathology i.e...
June 29, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29909262/behavioral-evidence-for-sex-steroids-hypersensitivity-in-castrated-male-canaries
#6
Olesya T Shevchouk, Samar Ghorbanpoor, Ed Smith, Philippe Liere, Michael Schumacher, Gregory F Ball, Charlotte A Cornil, Jacques Balthazart
In seasonally breeding songbirds such as canaries, singing behavior is predominantly under the control of testosterone and its metabolites. Short daylengths in the fall that break photorefractoriness are followed by increasing daylengths in spring that activate singing via both photoperiodic and hormonal mechanisms. However, we observed in a group of castrated male Fife fancy canaries maintained for a long duration under a short day photoperiod a large proportion of subjects that sang at high rates. This singing rate was not correlated with variation in the low circulating concentrations of testosterone...
June 28, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29953885/cortisol-during-adolescence-organises-personality-traits-and-behavioural-syndromes
#7
A Guenther, A G G Groothuis, O Krüger, V C Goerlich-Jansson
Despite the growing evidence for the importance of developmental experiences shaping consistent individual differences in behaviour and physiology, the role of endocrine factors underlying the development and maintenance of such differences across multiple traits, remains poorly understood. Here, we investigated how an experimental manipulation of circulating glucocorticoids during early adolescence affects behavioural and physiological variation and covariation later in life in the precocial cavy (Cavia aperea)...
June 25, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29953884/the-salivary-testosterone-response-to-a-chance-determined-contest-is-associated-with-face-gazing-behaviours-in-athletic-women
#8
Blair T Crewther, Christian J Cook
Human gaze is an important indicator of dominant and submissive behaviours related to positioning in a social hierarchy. This study investigated face gazing after a chance-determined contest and its linkage to salivary testosterone (sal-T) reactivity in athletic women. Twenty-six women athletes completed a coin-toss game on days 7 (D7), 14 (D14) and 21 (D21) of a single menstrual cycle. The game was played against an unknown opponent of similar age with the winner congratulated and rewarded with all coins. Gazing towards an opponent's head or face was timed after each contest (over 2 min) from video footage...
June 25, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29940158/the-inhibitory-effect-of-nucb2-nesfatin-1-on-appetite-regulation-of-siberian-sturgeon-acipenser-baerii-brandt
#9
Xin Zhang, Shuyao Wang, Hu Chen, Ni Tang, Jinwen Qi, Yuanbing Wu, Jin Hao, Zhengzhi Tian, Bin Wang, Defang Chen, Zhiqiong Li
Since NUCB2 was discovered, the information about NUCB2/nesfatin-1 in appetite regulation in both mammals and teleost has been still limited. The present study aims to determine the effects of nesfatin-1 on food intake and to explore the appetite mechanism in Siberian sturgeon. In this study, nucb2 cDNA sequence of 1571 bp was obtained, and the mRNA expression of nucb2 was abundant in brain and liver. Levels of nucb2 were appreciably increased in brain after feeding 1 and 3 h, while significantly decreased within fasting 15 days...
June 22, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29913141/rapid-effects-of-steroids-in-the-brain-introduction-to-special-issue
#10
EDITORIAL
Luke Remage-Healey, Elena Choleris, Jacques Balthazart
No abstract text is available yet for this article.
June 22, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29932951/stress-axis-regulation-during-social-ascension-in-a-group-living-cichlid-fish
#11
Brett M Culbert, Kathleen M Gilmour, Sigal Balshine
Animals living in groups often form social hierarchies, with characteristic behaviours and physiologies associated with rank. However, when social opportunities arise and a subordinate ascends into a dominant position, quick adjustments are necessary to secure this position. Such periods of social transition are typically associated with elevated glucocorticoid production, but the precise regulation of the stress axis during these occasions is not well understood. Using the group-living cichlid, Neolamprologus pulcher, the effects of social ascension on the stress axis were assessed...
June 19, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29928891/sex-and-breeding-stage-specific-hormonal-stress-response-of-seabird-parents
#12
Katarzyna Wojczulanis-Jakubas, Dariusz Jakubas, Monika Kulpińska-Chamera, Olivier Chastel
Changes in corticosterone (CORT) and prolactin (PRL) levels are thought to provide complementary information on parental decisions in birds in the context of stressful situations. However, these endocrine mechanisms have yet to be fully elucidated, appearing to vary among avian species without any clear pattern. Here, we examined CORT and PRL stress responses in a small Arctic seabird, the little auk (Alle alle). We analysed the levels of these hormones (baseline, and stress response, i.e. the change in the baseline in response to stress) with respect to the breeding phase (mid incubation and mid chick rearing) and the sex of the birds...
June 18, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29928890/dynamic-regulation-of-brain-aromatase-and-isotocin-receptor-gene-expression-depends-on-parenting-status
#13
Ross DeAngelis, Logan Dodd, Amanda Snyder, Justin S Rhodes
Fathering behavior is critical for offspring survival in many species across diverse taxa, but our understanding of the neuroendocrine mechanisms regulating paternal care is limited in part because of the few primarily paternal species among the common animal models. However, many teleosts display primarily paternal care, and among the teleosts, anemonefish species are particularly well suited for isolating molecular mechanisms of fathering as they perform parental care in isolation of many other typically competing behaviors such as territorial defense and nest building...
June 18, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29920269/licorice-root-components-mimic-estrogens-in-an-object-location-task-but-not-an-object-recognition-task
#14
Payel Kundu, Donna L Korol, Suren Bandara, Supida Monaikul, Caitlin E Ondera, William G Helferich, Ikhlas A Khan, Daniel R Doerge, Susan L Schantz
This study investigated the efficacy of components of licorice root to alter performance on two different recognition tasks, a hippocampus-sensitive metric change in object location (MCOL) task and a striatum-sensitive double object recognition (DOR) task. Isoliquiritigenin (ISL), licorice root extract (LRE), and whole licorice root powder (LRP) were assessed. Young adult female rats were ovariectomized (OVX) and exposed to ISL, LRE or LRP at 0.075%, 0.5% or 5% respectively in the diet. An estradiol group was included as a positive control based on our prior findings...
June 16, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29807036/selective-activation-of-estrogen-receptors-er%C3%AE-and-gper-1-rapidly-decreases-food-intake-in-female-rats
#15
Michael J Butler, Ryan P Hildebrandt, Lisa A Eckel
Many of estradiol's behavioral effects are mediated, at least partially, via extra-nuclear estradiol signaling. Here, we investigated whether two estrogen receptor (ER) agonists, targeting ERα and G protein-coupled ER-1 (GPER-1), can promote rapid anorexigenic effects. Food intake was measured in ovariectomized (OVX) rats at 1, 2, 4, and 22 h following subcutaneous (s.c.) injection of an ERα agonist (PPT; 0-200 μg/kg), a GPER-1 agonist (G-1; 0-1600 μg/kg), and a GPER-1 antagonist (G-36; 0-80 μg/kg)...
June 7, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29777656/rapid-sex-steroid-effects-on-reproductive-responses-in-male-goldfish-sensory-and-motor-mechanisms
#16
REVIEW
Richmond R Thompson, Lisa A Mangiamele
Although we have learned a great deal about the molecular mechanisms through which sex steroids rapidly affect cellular physiology, we still know little about the links between those mechanisms and behavioral output, nor about their functional consequences in natural contexts. In this review, we first briefly discuss the contexts associated with rapid effects of sex steroids on reproductive behaviors and their likely functional outcomes, as well the sensory, motor, and motivational mechanisms associated with those effects...
June 7, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29885343/human-social-neuroendocrinology-review-of-the-rapid-effects-of-testosterone
#17
REVIEW
Shawn N Geniole, Justin M Carré
It is well documented that testosterone concentrations change rapidly within reproductively relevant contexts (e.g., competition, mate-seeking). It has been argued that such rapid changes in testosterone may serve to adaptively fine-tune ongoing and/or future social behaviour according to one's social environment. In this paper, we review human correlational and experimental evidence suggesting that testosterone fluctuates rapidly in response to competition and mate-seeking cues, and that such acute changes may serve to modulate ongoing and/or future social behaviours (e...
June 6, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29864418/menstrual-cycle-phase-predicts-women-s-hormonal-responses-to-sexual-stimuli
#18
Talia N Shirazi, Jennifer A Bossio, David A Puts, Meredith L Chivers
A robust body of research has demonstrated shifts in women's sexual desire and arousal across the menstrual cycle, with heightened desire and arousal coincident with heightened probability of conception (POC), and it is likely that ovarian hormones modulate these shifts. However, studies in which women are exposed to audiovisual sexual stimuli (AVSS) at high POC (mid-follicular) and low POC (luteal) phases have failed to detect significant differences in genital or subjective arousal patterns based on menstrual cycle phase...
June 6, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29857025/environmental-cues-and-dietary-antioxidants-affect-breeding-behavior-and-testosterone-of-male-european-starlings-sturnus-vulgaris
#19
Katherine M Carbeck, Kristen J DeMoranville, Pietro B D'Amelio, Wolfgang Goymann, Lisa Trost, Barbara Pierce, Amadeusz Bryła, Maciej Dzialo, Ulf Bauchinger, Scott R McWilliams
Environmental cues, such as photoperiod, regulate the timing of major life-history events like breeding through direct neuroendocrine control. Less known is how supplementary environmental cues (e.g., nest sites, food availability) interact to influence key hormones and behaviors involved in reproduction, specifically in migratory species with gonadal recrudescence largely occurring at breeding sites. We investigated the behavioral and physiological responses of male European starlings to the sequential addition of nest boxes and nesting material, green herbs, and female conspecifics and how these responses depend on the availability of certain antioxidants (anthocyanins) in the diet...
June 2, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29807035/testosterone-production-and-social-environment-vary-with-breeding-stage-in-a-competitive-female-songbird
#20
Elizabeth M George, Kimberly A Rosvall
In many vertebrates, males increase circulating testosterone (T) levels in response to seasonal and social changes in competition. Females are also capable of producing and responding to T, but the full extent to which they can elevate T across life history stages remains unclear. Here we investigated T production during various breeding stages in female tree swallows (Tachycineta bicolor), which face intense competition for nesting sites. We performed GnRH and saline injections and compared changes in T levels 30 min before and after injection...
June 2, 2018: Hormones and Behavior
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