Abstract：
:The effects and the mediation of the action of the proenkephalin derivative Met(5)-enkephalin-Arg(6)-Phe(7) (MERF) on the hypothalamo-pituitary-adrenal (HPA) system and open-field behavior were investigated in mice. Intracerebroventricular injection of the heptapeptide increased square crossing, rearing, and plasma corticosterone level. To characterize the receptors involved in these neuroendocrine processes, animals were pretreated either with the nonselective opioid antagonist naloxone or the kappa-antagonist nor-binaltorphimine (nor-BNI). Both antagonists dose-dependently attenuated the HPA activation elicited by MERF. Naloxone also blocked the behavioral responses, but nor-binaltorphimine did not elicit a significant inhibition. The dopamine antagonist haloperidol and a corticotropin-releasing hormone (CRH) antagonist were also preadministered to shed light on the transmission of the actions of MERF. Both the motor responses and the HPA activation were diminished by the preadministration of the CRH antagonist, while haloperidol attenuated only square crossing and rearing. To investigate the direct effect of MERF on the dopaminergic system, dopamine release of striatal slices was measured in a superfusion system. Neither the basal nor the electric impulse-evoked dopamine release was modified by MERF. The results suggest that opioid-mediation predominate in the neuroendocrine actions of MERF, and the effect of the heptapeptide on the HPA system seems to be mediated by kappa-receptors. In the behavioral responses evoked by MERF, both CRH release and the action of the dopaminergic neurons of the subcortical motor system might be involved. MERF also appears to activate the paraventricular CRH neurons, but dopaminergic transmission does not seem to play a significant role in its hypothalamic action.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Bujdosó E,Jászberényi M,Farkas J,Tóth G,Wollemann M,Telegdy Gdoi
10.1016/s0018-506x(03)00004-7keywords:
subject
Has Abstractpub_date
2003-02-01 00:00:00pages
302-11issue
2eissn
0018-506Xissn
1095-6867pii
S0018506X03000047journal_volume
43pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1016/0018-506x(88)90026-8
更新日期：1988-03-01 00:00:00
abstract：:Testosterone plays a key role in the expression of male sex behavior by influencing cellular activity and synapses within the magnocellular medial preoptic nucleus (MPN mag), a sub-nucleus of the medial preoptic area (MPOA) in the Syrian hamster. Although the mechanisms underlying hormonally-induced synaptic plasticit...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2018.05.006
更新日期：2018-06-01 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
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.01.001
更新日期：2007-03-01 00:00:00
abstract：:The hormone oxytocin (OT) is released both centrally and peripherally during and after mating. Although research in humans suggests a central role in sexuality, the most reliable findings to date involve peripheral activation. This review will discuss these results and will particularly focus on understanding the most...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2011.11.001
更新日期：2012-03-01 00:00:00
abstract：:Nazca boobies (Sula granti) show unconditional obligate siblicide immediately after hatching, reducing the typical two-egg clutch size to one. We studied body mass changes and levels of testosterone (T), corticosterone (CORT), and progesterone (P) for A-chicks (dominant, first hatched), B-chicks (subordinate, second h...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2001.1661
更新日期：2001-08-01 00:00:00
abstract：:Humans and wildlife are exposed to numerous anthropogenic drugs and pollutants. Many of these compounds are hormonally active, and recent evidence suggests that the presence of these endocrine disruptors permanently alters normal development and physiology in a variety of vertebrate species. Here, we report on the eff...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2006.01.007
更新日期：2006-06-01 00:00:00
abstract：:There is recent evidence that cryoanesthesia, commonly used during neonatal hormone manipulations (e.g., gonadectomy), has deleterious effects on the morphology of the splenium of the corpus callosum and primary visual cortex in adult rats of both sexes. (Nuñez and Juraska, 1998; Nuñez, Kim, and Juraska, 1998). In the...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2000.1572
更新日期：2000-05-01 00:00:00
abstract：:While there exists increasing evidence of a relationship between testosterone (T) and risk-taking (RT), many issues remain unsolved. This paper tries to address two main-questions: (i) does T influence aggressive risk-taking (ART) and/or non-aggressive risk-taking (NART) behavior and (ii) is this relationship stable t...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.11.021
更新日期：2008-03-01 00:00:00
abstract：:The effects of castration and hormone treatment on cognitive performance were evaluated in male rats. Castrated animals received either testosterone or estradiol and were compared with gonadally intact animals and with castrated controls. Results revealed a dissociation between the effects of testosterone and estradio...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.03.005
更新日期：2005-09-01 00:00:00
abstract：:In the tammar wallaby, Macropus eugenii, the expression of male-type sexual behavior is apparently determined by the activating effects of testicular hormones in adulthood. The incidence of male-type copulatory behavior and sexual checking behavior was compared in intact (control) males, control females, testosterone-...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1996.0049
更新日期：1996-12-01 00:00:00
abstract：:This article is part of a Special Issue "Puberty and Adolescence". This paper examines consistency of effects of pubertal timing (going through puberty earlier, later or at the same time one's cohort of peers) on the development of psychopathology during adolescence as well as the persistence of effects into adulthood...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2013.04.003
更新日期：2013-07-01 00:00:00
abstract：:Androgen levels show strong patterns throughout the year in male vertebrates and play an important role in the seasonal modulation of the frequency, intensity and persistence of aggression. The Challenge Hypothesis (Wingfield, J.C., Hegner, R.E., Dufty, A.M., Ball, G.F., 1990. The "Challenge Hypothesis": Theoretical i...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.01.007
更新日期：2007-04-01 00:00:00
abstract：:Rodent alarm chemosignals elicit various behavioral and physiological responses in conspecifics. This study employed a bioassay method, using a modification of the forced swim test, to demonstrate that the pituitary mediates production and/or secretion of an alarm chemosignal in rats subjected to stress. This was show...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1011
更新日期：1994-06-01 00:00:00
abstract：:The present study investigated whether the circadian oscillators controlling rhythms in activity behavior and melatonin secretion shared similar functional relationship with the external environment. We simultaneously measured the effects of varying illuminations on rhythms of movement and melatonin levels in Indian w...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2012.01.015
更新日期：2012-04-01 00:00:00
abstract：:This article is part of a Special Issue "Estradiol and cognition". Subjective changes in concentration and memory are commonly reported by women during the second or third trimesters of pregnancy, but the nature of the problem is poorly understood. We hypothesized that these self-reports might reflect difficulties in ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2015.07.006
更新日期：2015-08-01 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
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2005.02.003
更新日期：2005-06-01 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
pub_type： 杂志文章
doi：10.1016/0018-506x(92)90048-z
更新日期：1992-06-01 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
pub_type： 杂志文章
doi：10.1016/s0018-506x(03)00028-x
更新日期：2003-04-01 00:00:00
abstract：:The present study examined the ability of clitoral stimulation (CLS) to induce conditioned place preference (CPP) and Fos protein in the brain. Ovariectomized, hormone-primed Long-Evans rats were randomly assigned to receive either distributed CLS (1 stimulation every 5 s for 1 min prior to being placed in one distinc...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2009.05.008
更新日期：2010-02-01 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
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2012.08.009
更新日期：2012-11-01 00:00:00
abstract：:Studies examining the roles of estrogens and progestins on spatial cognition have been highly contradictory. To determine if the hormonal environment of pregnancy affects spatial cognition, pregnant (n = 7) and virgin (n = 7) Hooded Long-Evans rats were tested in a Morris water maze throughout the 3 weeks of pregnancy...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.08.002
更新日期：2006-03-01 00:00:00
abstract：:Because of its numerous sexually dimorphic characters, the Western mosquitofish Gambusia affinis affinis is an excellent vertebrate system for addressing questions concerning sexual differentiation. In this review, the actions and limits of gonadal sex steroids, specifically testosterone, on the development of the sex...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1996.0059
更新日期：1996-12-01 00:00:00
abstract：:The role of GABA neurons in the control of the surge of LH secretion was investigated by examining whether GABAA receptor antagonist bicuculline (BIC) infusion prior to the LH surge could advance the timing of the proestrous surge in the rat. The effect of the opioid receptor antagonist naloxone (NAL) was also examine...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1039
更新日期：1994-12-01 00:00:00
abstract：:In adult rodents, leptin has been shown to significantly alter the activity of several neuroendocrine functions, including the activity of the hypothalamic-pituitary-adrenal (HPA) axis. Leptin is generally believed to be inhibitory to HPA activity in adults. Developing rat pups have high circulating levels of leptin, ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2000.1578
更新日期：2000-06-01 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
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2011.07.013
更新日期：2011-09-01 00:00:00
abstract：:To determine across-year patterns in plasma testosterone (T) and corticosterone (B) levels in free-living birds, we took blood samples in the same 2-week breeding period during 4 consecutive years from territorial male red-winged blackbirds. We used our data to test predictions of the "challenge hypothesis" of T secre...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(92)90011-j
更新日期：1992-09-01 00:00:00
abstract：:Lesions of the preoptic area and immediately adjacent septal area were made in female American toads, Bufo americanus. The ability to show mating call phonotaxis (MCP) was then tested for. The intensity of MCP was found to decrease as the degree of damage to the anterior tip of the anterior preoptic nucleus (APON) inc...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(89)90070-6
更新日期：1989-03-01 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
pub_type： 杂志文章
doi：10.1006/hbeh.1996.0009
更新日期：1996-03-01 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
pub_type： 杂志文章
doi：10.1016/0018-506x(87)90027-4
更新日期：1987-03-01 00:00:00
abstract：: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 c...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2018.06.006
更新日期：2018-07-01 00:00:00
