Abstract：
:Hormone replacement therapy (HRT) may be prescribed to prevent the symptoms of menopause. This therapy may include estrogenic and/or progestin components and may increase the incidence of endometrial and breast cancers. Tibolone (TIB), which is also made up of estrogen and progestin components, is often used to reduce the impact of HRT. However, the effect of TIB on the processes of learning, memory and anxiety has yet to be fully elucidated. The aim of this study was to evaluate the long-term effect on learning, memory processes and anxiety in ovariectomized rats caused by different doses of TIB (0 mg/kg, 0.01 mg/kg, 0.1 mg/kg 1.0 mg/kg and 10 mg/kg, administered daily via the oral route for 18 weeks). Two behavioral animal models, the autoshaping and T maze models were employed. The concentrations of acetyl choline transferase (ChAT) and tryptophan hydroxylase (TPH) in the hippocampus were directly measured by Western blot. No significant changes were observed in the autoshaping model and spontaneous activity test. In the T maze, increased latency was observed with TIB doses of 1 and 10 mg/kg compared to the vehicle. We observed that the ChAT content decreased with increasing doses of TIB, whereas TPH content increased with doses of 1 and 10 mg/kg of TIB. These data indicate that high doses of TIB improved emotional learning, which may be related to the modulation of the cholinergic and serotonergic systems by TIB.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Espinosa-Raya J,Neri-Gómez T,Orozco-Suárez S,Campos MG,Guerra-Araiza Cdoi
10.1016/j.yhbeh.2011.10.005subject
Has Abstractpub_date
2012-01-01 00:00:00pages
76-83issue
1eissn
0018-506Xissn
1095-6867pii
S0018-506X(11)00257-1journal_volume
61pub_type
杂志文章abstract：:In vertebrates, the well established increase in plasma corticosterone in response to food shortage is thought to mediate adjustments of foraging behavior and energy allocation to environmental conditions. However, investigating the functional role of corticosterone is often constrained by the difficulty to track time...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.07.003
更新日期：2007-11-01 00:00:00
abstract：:Endocrine disruptors, chemicals that disturb the actions of endogenous hormones, have been implicated in birth defects associated with hormone-dependent development. Phytoestrogens are a class of endocrine disruptors found in plants. In the current study we examined the effects of exposure at various perinatal time pe...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2009.12.013
更新日期：2010-03-01 00:00:00
abstract：:Estrogens have been shown to be protective agents against neurodegeneration and associated cognitive decline in aging females. However, clinical data have been equivocal as to the benefits to the brain and cognition of estrogen therapy in postmenopausal women. One factor that is proposed to be critical in determining ...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2012.05.003
更新日期：2013-02-01 00:00:00
abstract：:A series of six experiments was performed to examine the influence of postnatal-gonadal-hormone exposure on home-cage activity in Rockland-Swiss albino mice. Intact females were more active than their male counterparts and gonadectomy in adulthood, while reducing levels of the behavior in both sexes, did not eliminate...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(84)90051-5
更新日期：1984-03-01 00:00:00
abstract：:Despite decades of laboratory research and clinical trials, a safe and effective treatment for traumatic brain injury (TBI) has yet to be put into successful clinical use. I suggest that much of the problem can be attributed to a reductionist perspective and attendant research strategy directed to finding or designing...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2012.05.004
更新日期：2013-02-01 00:00:00
abstract：:Variation in natural behavior is tightly linked to the ecological resources with which they co-evolved. This review discusses poison frog behavior and neuroendocrinology to illustrate how ecological factors drive diversification of behavior and its underlying neural mechanisms. Poison frogs show tremendous diversity i...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2020.104869
更新日期：2020-11-01 00:00:00
abstract：:The periaqueductal gray (PAG) columns have been implicated in controlling stress responses through corticotropin-releasing factor (CRF), which is a neuropeptide with a prominent role in the etiology of fear- and anxiety-related psychopathologies. Several studies have investigated the involvement of dorsal PAG (dPAG) C...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2013.04.001
更新日期：2013-05-01 00:00:00
abstract：:A number of studies have shown that chronic stress can negatively impact both physiology and behavior in a variety of organisms. What has yet to be extensively explored is whether these changes permanently alter an animal's functioning, or if they can be reversed. In this study, we used wild-caught house sparrows (Pas...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2019.04.009
更新日期：2019-06-01 00:00:00
abstract：:A meta-analysis of the literature shows that in adult male songbirds, brain mass, telencephalon volume and n. rotundus (a thalamic visual nucleus) volume increase from the nonbreeding season (low testosterone) to the breeding season (higher testosterone). These effects can at least partially be mimicked by photoperiod...
journal_title：Hormones and behavior
pub_type： 杂志文章,meta分析
doi：10.1006/hbeh.2001.1748
更新日期：2002-03-01 00:00:00
abstract：:Mating, marking and the sexually dimorphic area (SDA) were studied in male gerbils that were castrated or sham-operated on the day of birth and in females given testosterone (T) propionate or oil 1 day later. Other females received dihydrotestosterone (DHT), R1881, estradiol benzoate (EB), R2858, DHT and EB, or DHT an...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1996.0015
更新日期：1996-06-01 00:00:00
abstract：:The vertebrate hippocampus (HP) plays a critical role in the organization of memory. Estrogens alter synaptic morphology and function in the mammalian HP and may potentiate memory performance. Previous studies suggest that the songbird HP itself is a site of significant aromatase expression, intimating that local estr...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1998.1447
更新日期：1998-10-01 00:00:00
abstract：:Ghrelin, a hormone produced primarily by the stomach, has been associated with motivational processes that include reward-seeking behaviors. In male laboratory mice, elevation of ghrelin levels enhances some aspects of sexual motivation and behavior, whereas in other experiments with male mice, rats, and other species...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2017.10.012
更新日期：2018-01-01 00:00:00
abstract：:Up to 80% of all bird species are socially monogamous. Divorce (switching partners) or pair disruption (due to the death of a partner) has been associated with decreased reproductive success, suggesting social monogamy is a strategy that may maximize fitness via coordination between partners. Previous studies have dem...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.11.004
更新日期：2017-01-01 00:00:00
abstract：:As research neurobiologists, we pursue specific questions, and the answers rendered are also correspondingly specific. Our goal, however, is to understand an entire system or the whole organism. To that end, it is not only useful, but sometimes also necessary, that we periodically reappraise a body of specific data in...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2007.08.007
更新日期：2008-01-01 00:00:00
abstract：:This article is part of a Special Issue "Chemosignals and Reproduction". A rich variety of chemosignals have been identified that influence mammalian behaviour, including peptides, proteins and volatiles. Many of these elicit innate effects acting either as pheromones within species or allelochemicals between species....
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.08.010
更新日期：2015-02-01 00:00:00
abstract：:The objectives of these studies were to evaluate the influence of testosterone propionate (TP), estradiol cypionate (EC), dihydrotestosterone propionate (DHTP), EC + TP, EC + DHTP, and TP + DHTP on traits of masculine sexual behavior in castrated adult male pigs of different breeds. Masculine sexual behavior was resto...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(89)90052-4
更新日期：1989-09-01 00:00:00
abstract：:Lordosis responses by estrous hamsters were triggered by brief manual stimulation. Lordosis durations then were timed, as manual stimulation was discontinued, and subjects were exposed to tape-recordings of conspecific vocalizations reproduced at intensities of 0-60 dB SPL. Relative to the durations observed in the pr...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(87)90010-9
更新日期：1987-12-01 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：:Perinatal treatment of female rats with androgen decreases the nuclear volume of the anteroventral periventricular nucleus of the preoptic area (AVPvN-POA). In order to examine the effect of androgen on neurogenesis, bromodeoxyuridine (BrdU) was given once on Day 15 of gestation (= E15) to pregnant rats that also rece...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1994.1027
更新日期：1994-12-01 00:00:00
abstract：:Two experiments examined the properties of vaginal, facial, salivary, and urinary odors from female house mice to elicit ultrasonic vocalizations from male mice. Experiment 1 demonstrated that facial and salivary secretions from hypophysectomized females were significantly less effective in eliciting ultrasonic vocali...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(86)90029-2
更新日期：1986-03-01 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：:This article is part of a Special Issue "Energy Balance". Obesity and its associated comorbidities remain at epidemic levels globally and show no signs of abatement in either adult or child populations. White adipose tissue has long been established as an endocrine signalling organ possessing both metabolic and immune...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.02.007
更新日期：2014-06-01 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
abstract：:Oxytocin and vasopressin are known to be important in affiliative behaviors. Although these peptides have been shown to be involved in monogamous pairing behavior in a few mammalian species, their role across monogamous species is not well understood. In particular, monogamy is most common in birds, yet the role of me...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2012.05.009
更新日期：2012-07-01 00:00:00
abstract：:Estradiol replacement to ovariectomized female rats causes dramatic changes in hippocampal structure and function as well as in performance on hippocampally dependent tasks. Using a delayed matching-to-place version of the water maze, the present study examines the time course of estradiol-induced enhancements in memo...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2003.09.010
更新日期：2004-02-01 00:00:00
abstract：:Progesterone (P₄) and its metabolites, rapidly facilitate lordosis of rats partly through actions in the ventral tegmental area (VTA). The study of membrane progestin receptors (mPRs), of the Progestin and AdipoQ Receptor (PAQR) superfamily, has been limited to expression and regulation, instead of function. We hypoth...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2013.05.012
更新日期：2013-08-01 00:00:00
abstract：:This article is part of a Special Issue "Chemosignals and Reproduction". In mammalian species, odor cues emitted by the newborn are essential to establish maternal behavior at parturition and coordinate early mother-infant interactions. Offspring odors become potent attractive stimuli at parturition promoting the cont...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2014.06.018
更新日期：2015-02-01 00:00:00
abstract：:This article is part of a Special Issue "Energy Balance". The classical estrogen receptors, estrogen receptor-α and estrogen receptor-β are well established in the regulation of body weight and energy homeostasis in both male and female mice, whereas, the role for G protein-coupled estrogen receptor 1 (GPER) as a modu...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2014.02.004
更新日期：2014-06-01 00:00:00
abstract：:From the U.S. to Europe and Australia anabolic steroid abuse remains high in the adolescent population. This is concerning given that anabolic steroid use is associated with a higher incidence of pathological anxiety that often appears during withdrawal from use. This study uses pubertal Syrian hamsters (Mesocricetus ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2012.09.007
更新日期：2012-11-01 00:00:00
abstract：:Neonatal administration of clomipramine (CMI) induces diverse behavioral and neurochemical alterations in adult male rats that resemble major depression disorder. However, the possible behavioral alterations in adult female rats subjected to neonatal treatment with clomipramine are unknown. Therefore, the aim of this ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2017.06.004
更新日期：2017-08-01 00:00:00
