Human chorionic gonadotropin (a luteinizing hormone homologue) decreases spatial memory and increases brain amyloid-beta levels in female rats.

abstract：:Chronic stress in various forms increases the risk for cognitive dysfunction, dementia and Alzheimer's disease. While the pathogenesis behind these findings is unknown, growing evidence suggests that chronic increase in neurosteroid levels, such as allopregnanolone, is part of the mechanism. We treated wild-type C57BL...

journal_title：Hormones and behavior

authors： Bengtsson SK,Johansson M,Bäckström T

更新日期：2016-02-01 00:00:00

abstract：:Based on a wide variety of data, it is now clear that birds and teleost (bony) fish possess a core "social behavior network" within the basal forebrain and midbrain that is homologous to the social behavior network of mammals. The nodes of this network are reciprocally connected, contain receptors for sex steroid horm...

journal_title：Hormones and behavior

authors： Goodson JL

更新日期：2005-06-01 00:00:00

abstract：:The first issue of Hormones and Behavior was published 50 years ago in 1969, a time when most of the techniques we currently use in Behavioral Endocrinology were not available. Researchers have during the last 5 decades developed techniques that allow measuring hormones in small volumes of biological samples, identify...

journal_title：Hormones and behavior

authors： Balthazart J

更新日期：2020-02-01 00:00:00

abstract：:In seasonally migratory species, the overlap between the migratory and breeding life history stages is a balance between the physiological and behavioral requirements of each stage. Previous studies investigating the degree to which songbirds prepare for breeding during spring migration have focused on either circulat...

journal_title：Hormones and behavior

authors： Covino KM,Jawor JM,Morris SR,Moore FR

更新日期：2018-01-01 00:00:00

abstract：:In this study spontaneous behavior and endocrine parameters were compared between the domestic guinea pig (Cavia aperea f. porcellus) and its wild ancestor, the cavy (Cavia aperea), to elucidate the process of domestication in this species. In 120 h of observation time the behavior of five groups of wild and seven gro...

journal_title：Hormones and behavior

authors： Künzl C,Sachser N

更新日期：1999-02-01 00:00:00

abstract：:The anti-estrogen tamoxifen (Tam), which has been shown to dramatically suppress offensive behavior in male rats without markedly influencing other aspects of the social encounter, was tested for its effectiveness in mice. TO strain albino mice were given control injections or 50 or 100 micrograms of Tam for 4 or 8 da...

journal_title：Hormones and behavior

authors： Hasan SA,Brain PF,Castano D

更新日期：1988-06-01 00:00:00

abstract：:Previous studies have documented the ability of neural grafts to stimulate the recovery of lordosis from neurochemical deficits. However, it was unclear if grafts also could reverse deficits in lordosis caused by lesions at critical points in the neural circuit controlling this response. To address this question, fema...

journal_title：Hormones and behavior

authors： Bartholomew MB,Floody OR

更新日期：1997-12-01 00:00:00

abstract：:The mechanistic bases of natural and sexual selection on physiological and behavioral traits were examined in male morphs of three colors of the side-blotched lizard, Uta stansburiana. Orange-throated males are aggressive and defend large territories with many females. Blue-throated males defend smaller territories wi...

journal_title：Hormones and behavior

authors： Sinervo B,Miles DB,Frankino WA,Klukowski M,DeNardo DF

更新日期：2000-12-01 00:00:00

abstract：:In ovariectomized (OVX) Sprague-Dawley rats, estradiol benzoate (EB) has been reported to decrease rapid eye movement (REM) and non-REM (NREM) sleep during the dark phase for up to 3 days. It is unknown, however, if estrogenic effects on sleep extend beyond 3 days or if other estrogens could induce the same changes. F...

journal_title：Hormones and behavior

authors： Pawlyk AC,Alfinito PD,Johnston GH,Deecher DC

更新日期：2008-01-01 00:00:00

abstract：:Urine deposited by a rat on a conspecific was quantified with injections of sodium fluorescein, a substance that changes the color of urine. The hypothesis examined in experiment 1 was that marking the environment and a conspecific would be similarly androgen-sensitive behaviors during each of three stages--before cas...

journal_title：Hormones and behavior

authors： Taylor GT,Bartko G,Farr S

更新日期：1987-06-01 00:00:00

abstract：:Among the suite of seasonal adaptations displayed by nontropical rodents, some species demonstrate increased territorial aggression in short compared with long day lengths despite basal levels of testosterone. The precise physiological mechanisms mediating seasonal changes in aggression, however, remain largely unknow...

journal_title：Hormones and behavior

authors： Demas GE,Polacek KM,Durazzo A,Jasnow AM

更新日期：2004-12-01 00:00:00

abstract：:This study examined the contribution of the superior ovarian nerve (SON) to estrous responsiveness and ovarian function in cycling rats. Section of the SON was carried out at 1100 on proestrus, and lordotic responsiveness was measured at 1500, 1700, and 2100 on that day and at 0900, 1200, and 1500 on the day of estrus...

journal_title：Hormones and behavior

authors： Erskine MS,Weaver CE Jr

更新日期：1988-03-01 00:00:00

abstract：:Experimental findings suggest that the melatonin system has a beneficial role in models of Alzheimer's disease (ADs). The aim of the present study was to explore whether the atypical antidepressant agomelatine (Ago), which is a melatonin MT1 and MT2 agonist and 5-HT2C antagonist, is effective against behavioral, bioch...

journal_title：Hormones and behavior

authors： Ilieva K,Tchekalarova J,Atanasova D,Kortenska L,Atanasova M

更新日期：2019-01-01 00:00:00

abstract：:There is growing evidence from preclinical studies for an involvement of orexins (ORX) in the regulation of stress, affectivity and addictive behavior. The aim of our study was to gather corresponding clinical data and to elucidate the relationships between alcohol withdrawal stress, ORX plasma concentration and psych...

journal_title：Hormones and behavior

authors： von der Goltz C,Koopmann A,Dinter C,Richter A,Grosshans M,Fink T,Wiedemann K,Kiefer F

更新日期：2011-11-01 00:00:00

abstract：:We investigated whether sexual activity was associated with reproductive function in the BioCycle Study, a prospective cohort study that followed 259 regularly menstruating women aged 18 to 44years for one (n=9) or two (n=250) menstrual cycles in 2005-2007. Women were not attempting pregnancy nor using hormonal contra...

journal_title：Hormones and behavior

authors： Prasad A,Mumford SL,Buck Louis GM,Ahrens KA,Sjaarda LA,Schliep KC,Perkins NJ,Kissell KA,Wactawski-Wende J,Schisterman EF

更新日期：2014-07-01 00:00:00

abstract：:Ghrelin is an orexigenic hormone that regulates homeostatic and reward-related feeding behavior. Recent evidence indicates that acylation of ghrelin by the gut enzyme ghrelin O-acyl transferase (GOAT) is necessary to render ghrelin maximally active within its target tissues. Here we tested the hypothesis that GOAT act...

journal_title：Hormones and behavior

authors： Davis JF,Perello M,Choi DL,Magrisso IJ,Kirchner H,Pfluger PT,Tschoep M,Zigman JM,Benoit SC

更新日期：2012-11-01 00:00:00

abstract：:Fighting behavior between male copperheads (Agkistrodon contortrix) occurs during the two mating periods (late summer/fall and spring) to gain priority of access to females. Fights are characterized by prominent vertical challenge displays, swaying, and a high degree of physical contact that does not involve biting. A...

journal_title：Hormones and behavior

authors： Schuett GW,Harlow HJ,Rose JD,Van Kirk EA,Murdoch WJ

更新日期：1996-03-01 00:00:00

abstract：:The individual time patterns of salivary testosterone of adult healthy men, self-reported sexual behavior and their co-occurrence with regular weekly or monthly intervals were studied. Twenty-seven volunteer males (mean age 33 +/- 1 years) collected daily morning saliva over a period of 90 days. Evening questionnaires...

journal_title：Hormones and behavior

authors： Hirschenhauser K,Frigerio D,Grammer K,Magnusson MS

更新日期：2002-09-01 00:00:00

abstract：:Tonic immobility (TI) is also known as "immobility response", "immobility reflex", "animal hypnosis", etc. It is an innate antipredatory behavior characterized by an absence of movement, varying degrees of muscular activity, and a relative unresponsiveness to external stimuli. Experimentally, TI is commonly produced b...

journal_title：Hormones and behavior

authors： Sandoval-Herrera V,Trujillo-Ferrara JG,Miranda-Páez A,De La Cruz F,Zamudio SR

更新日期：2011-09-01 00:00:00

abstract：:Children exhibit gender-typical preferences in play, toys, activities and interests, and playmates. Several studies suggest that high concentrations of pre- and postnatal androgens contribute to male-typical behavior development, whereas female-typical behavior develops in the absence of high androgens levels. This st...

journal_title：Hormones and behavior

authors： Jürgensen M,Hiort O,Holterhus PM,Thyen U

更新日期：2007-03-01 00:00:00

abstract：:Various hormones, including sex steroids and neuropeptides, have been implicated in aggression. In this study we examined (1) sex differences in intrasexual aggression in naïve prairie voles; (2) the effects of developmental manipulations of oxytocin on intrasexual aggression; and (3) changes in patterns of intrasexua...

journal_title：Hormones and behavior

authors： Bales KL,Carter CS

更新日期：2003-09-01 00:00:00

abstract：:A sequence of behaviours which we call courtship initiates reproduction in a large number of species. In vertebrates, as a component of male sexual behaviour courtship is strongly influenced by testicular androgen. Here I will review some salient issues about the regulation of courtship by testosterone in birds. The f...

journal_title：Hormones and behavior

authors： Fusani L

更新日期：2008-08-01 00:00:00

abstract：:Imprinted genes, which are thought to comprise <1% of the mammalian genome, are defined by their parent-of-origin specific monoallelic expression arising as a consequence of differential epigenetic marking of alleles in the paternal and maternal germlines. Such genes are highly represented in the brain and placental t...

journal_title：Hormones and behavior

authors： Kopsida E,Mikaelsson MA,Davies W

更新日期：2011-03-01 00:00:00

abstract：:The sources of cues necessary for elicitation of androgen surges and sexual behavior in male golden hamsters (Mesocricetus auratus) were investigated. Circulating androgen levels were measured in males after interactions with other males or several types of estrous females: intact females, vaginectomized females, or v...

journal_title：Hormones and behavior

authors： Pfeiffer CA,Johnston RE

更新日期：1992-06-01 00:00:00

abstract：:Vasectomized male Texas bobwhite quail (Colinus virginianus texanus) are used as foster fathers in a program to reintroduce the endangered masked bobwhite quail to its native habitat. Less than half of the Texas bobwhite, however, show appropriate alloparental behavior toward the chicks. They also undergo a significan...

journal_title：Hormones and behavior

authors： Vleck CM,Dobrott SJ

更新日期：1993-03-01 00:00:00

abstract：:Adolescence is a period during which many social behaviors emerge. One such behavior, flank marking, is a testosterone-modulated scent marking behavior that communicates dominance status between adult male Syrian hamsters. Testosterone modulates flank-marking behavior by altering neural transmission of vasopressin wit...

journal_title：Hormones and behavior

authors： Schulz KM,Menard TA,Smith DA,Albers HE,Sisk CL

更新日期：2006-09-01 00:00:00

abstract：:Sexual behavior in female rats depends on the action of estradiol on estrogen receptors (ERs) found in particular brain regions. While hormonal regulation of female sexual behavior requires ERalpha, the possible functions of ERbeta remain to be clarified. Mating stimulation has several behavioral and physiological con...

journal_title：Hormones and behavior

authors： Gréco B,Blasberg ME,Kosinski EC,Blaustein JD

更新日期：2003-04-01 00:00:00

abstract：:Previous studies from our laboratory indicate that somatosensory inputs to the snout and ventral trunk, but not visual or auditory stimuli, play critical roles in the elicitation and maintenance of maternal aggression by lactating Norway rats toward a strange male intruder. There are conflicting reports on the influen...

journal_title：Hormones and behavior

authors： Kolunie JM,Stern JM

更新日期：1995-12-01 00:00:00

abstract：:Lizards provide a rich opportunity for investigating the mechanisms associated with arousal and the display of motivated behaviors. They exhibit diverse mating strategies and modes of conspecific communication. This review focuses on anole lizards, of which green anoles (Anolis carolinensis) have been most extensively...

journal_title：Hormones and behavior

authors： Wade J

更新日期：2011-05-01 00:00:00

abstract：:Male and female hamsters differ in the stimulus control of the ultrasounds they produce during courtship and mating. In particular, untreated males show greater increases in ultrasound rate after exposure to stimulus females than after contact with other males. Conversely, estrous females are more responsive to stimul...

journal_title：Hormones and behavior

authors： Floody OR,Comerci JT,Lisk RD

更新日期：1987-03-01 00:00:00