Abstract：
:The brain of the adult teleost fish exhibits intense neurogenic activity and an outstanding capability for brain repair. Remarkably, the brain estrogen-synthesizing enzyme, aromatase B, is strongly expressed, particularly in adult fishes, in radial glial cells, which act as progenitors. Using zebrafish, we tested the hypothesis that estrogens affect adult neurogenesis and brain regeneration by modulating the neurogenic activity of radial glial cells. To investigate this, the estrogenic environment was modified through inhibition of aromatase activity, blockade of nuclear estrogen receptors, or estrogenic treatments. Estrogens significantly decreased cell proliferation and migration at the olfactory bulbs/telencephalon junction and in the mediobasal hypothalamus. It also appears that cell survival is reduced at the olfactory bulbs/telencephalon junction. We also developed a model of telencephalic lesion to assess the role of aromatase and estrogens in brain repair. Proliferation increased rapidly immediately after the lesion in the parenchyma of the injured telencephalon, while proliferation at the ventricular surface appeared after 48 h and peaked at 7 days. At this time, most proliferative cells express Sox2, however, none of these Sox2 positive cells correspond to aromatase B-positive radial glial cells. Interestingly, aromatase B expression was significantly reduced 48 h and 7 days after the injury, but surprisingly, at 72 h after lesion, aromatase B expression appeared de novo expressed in parenchyma cells, suggesting a role for this ectopic expression of aromatase in brain repair mechanisms. Altogether these data suggest that estrogens modulate adult, but not reparative neurogenesis, in zebrafish.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Diotel N,Vaillant C,Gabbero C,Mironov S,Fostier A,Gueguen MM,Anglade I,Kah O,Pellegrini Edoi
10.1016/j.yhbeh.2012.04.003subject
Has Abstractpub_date
2013-02-01 00:00:00pages
193-207issue
2eissn
0018-506Xissn
1095-6867pii
S0018-506X(12)00110-9journal_volume
63pub_type
杂志文章abstract：:Relationships between testosterone plasma levels and evoked vocal responses of males of the leptodactylid frog Batrachyla taeniata from southern Chile were studied. Evoked vocal responses were elicited in the field with playbacks of a synthetic imitation of the conspecific advertisement call and variants of this signa...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1997.1366
更新日期：1997-04-01 00:00:00
abstract：:Previous experiments have shown that expression of mounting behavior in sexually inexperienced, adult male white-crowned sparrows does not require elevated plasma levels of androgen; adult males maintained on nonstimulatory short days mount sexually receptive females. The experiments reported here demonstrate that (1)...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(83)90050-8
更新日期：1983-12-01 00:00:00
abstract：:Fetal programming is emerging as a major conceptual model for understanding developmental origins of health and disease, including behavioral outcomes. As part of a larger study of prenatal stress and child development, we examined the association between prenatal hormone exposure and fear reactivity, a temperament di...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2009.12.012
更新日期：2010-03-01 00:00:00
abstract：:Short-term fluctuations in steroid hormones such as estradiol (E2) and progesterone (P) can affect the concentration of hippocampal dendritic spines in adult, cycling nulliparous female rats. Pregnancy is characterized by a significantly longer duration of substantially elevated E2 and P compared to the estrous cycle....
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2005.05.017
更新日期：2006-02-01 00:00:00
abstract：:Environmental perturbations increase adrenal activity in several vertebrates. Increases in corticosterone may serve as a proximate trigger whereby organisms can rapidly adapt their behavior to survive environmental fluctuations. In food-caching songbirds, inclement weather may present the need to alter caching and/or ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2000.1571
更新日期：2000-03-01 00:00:00
abstract：:Developmental plasticity of HPA and fear responses in rats has been proposed to be mediated by environment-dependent variation in active maternal care. Here, we review this maternal mediation hypothesis based on the postnatal manipulation literature and on our own recent research in rats. We show that developmental pl...
journal_title：Hormones and behavior
pub_type： 杂志文章,评审
doi：10.1016/j.yhbeh.2006.06.015
更新日期：2006-12-01 00:00:00
abstract：:One brain region that has been implicated in the regulation of lordosis is the medial preoptic-anterior hypothalamic continuum (MPOA-AH). Previous studies have suggested that this zone may be part of the circuit mediating the effects of serotonin (5-HT) on sexual receptivity. In the present experiments, we investigate...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.2002.1803
更新日期：2002-08-01 00:00:00
abstract：:Findings from previous studies of hormone-mediated behavior in women suggest that raised progesterone level increases the probability of behaviors that will reduce the likelihood of disruption to fetal development during pregnancy (e.g. increased avoidance of sources of contagion). Here, we tested women's (N=52) sensi...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2006.10.002
更新日期：2007-02-01 00:00:00
abstract：:Ovariectomized rats were hormonally primed with 10 microg estradiol benzoate or with estradiol benzoate plus 500 microg progesterone. Rats received a bilateral infusion with 200 ng of the 5-HT(1B/1D) receptor antagonist, N-[4-methoxy-3-(4-methyl-1-piperazinyl)phenyl]-2'-methyl-4'-(5-methyl-1,2,4-oxadiazol-3-yl)-1-1'-b...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2008.09.011
更新日期：2009-01-01 00:00:00
abstract：:The copulatory and precopulatory behavioral repertoire expressed in terms of the intensity scale of sexual responsiveness was investigated in female rats ovariectomized on the 30th day after birth and treated for 9 weeks, once weekly, with estradiol dipropionate (5, 10, 15, 20, and 30 micrograms per animal) plus proge...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(86)90036-x
更新日期：1986-09-01 00:00:00
abstract：:A growing body of research indicates that testosterone influences spatial cognition in male rats; however, the overwhelming majority of studies have been conducted on tasks motivated by either food deprivation or water escape. The hippocampus-dependent version of the Y-maze task, which characterizes spatial recognitio...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2013.02.007
更新日期：2013-04-01 00:00:00
abstract：:Experiments were conducted to investigate the sex-specific differences to feeding responses of the shore crab Carcinus maenas throughout the year. Results demonstrate that female shore crabs exhibit stronger feeding responses than males throughout the year with a significantly reduced feeding response in males during ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.03.004
更新日期：2007-08-01 00:00:00
abstract：:Neuropeptides, especially oxytocin (OT) and arginine vasopressin (AVP), have been implicated in several features of monogamy including alloparenting. The purpose of the present study was to examine the role of OT and AVP in alloparental behavior in reproductively naïve male prairie voles. Males received intracerebrove...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2004.01.004
更新日期：2004-05-01 00:00:00
abstract：:In the field as well as in the laboratory, human-generated stress responses are reduced in adult animals previously habituated to humans in comparison to non-habituated individuals. In birds, yolk steroid levels vary with maternal environment and condition. We tested the hypothesis that the experience of female birds ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2008.04.012
更新日期：2008-08-01 00:00:00
abstract：:Three experiments were conducted to test whether testicular hormones secreted during puberty masculinize and defeminize the expression of adult reproductive behavior. Experiment 1 tested the hypothesis that gonadal hormones during puberty masculinize behavioral responses to testosterone (T) in adulthood. Male hamsters...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2003.12.007
更新日期：2004-04-01 00:00:00
abstract：:This article is part of a Special Issue "Energy Balance". Energy homeostasis is achieved through neuroendocrine and metabolic control of energy intake, storage, and expenditure. Traditionally, these controls have been studied in an unrealistic and narrow context. The appetite for food, for example, is most often assum...
journal_title：Hormones and behavior
pub_type： 社论
doi：10.1016/j.yhbeh.2014.05.001
更新日期：2014-06-01 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：:Social competence - the ability of animals to dynamically adjust their social behavior dependent on the current social context - is fundamental to the successful establishment and maintenance of social relationships in group-living species. The social opportunity paradigm, where animals rapidly ascend a social hierarc...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.11.001
更新日期：2017-01-01 00:00:00
abstract：:Social stressors such as depressed maternal care and family conflict are robust challenges which can have long-term physiological and behavioral effects on offspring and future generations. The current study investigates the transgenerational effects of an ethologically relevant chronic social stress on the behavior a...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2014.03.005
更新日期：2014-04-01 00:00:00
abstract：:Social behavior plays a significant role in the formation of social structure and population regulation in both animals and humans. Oxytocin (OXT) and its receptor (OXTR) are well known for regulating social behaviors, but their upstream regulating factors are rarely investigated. We hypothesized that the phosphorylat...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2019.104638
更新日期：2020-03-01 00:00:00
abstract：:Animal studies indicate that sex hormones have widespread effects on the brain, cognition and emotion, but findings in humans are inconsistent. Well-controlled studies in nonhuman primates are crucial to resolve these discrepancies. In this study, we examined the effects of testosterone (T) on emotion in male rhesus m...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2010.08.010
更新日期：2010-11-01 00:00:00
abstract：:Many seasonally breeding vertebrate species have an associated reproductive pattern: mating behavior, gonadal activity, and peak circulating androgen levels occur simultaneously. In these species, androgens influence the expression of male mating behavior. Other species have a dissociated reproductive pattern: mating ...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2007.02.004
更新日期：2007-04-01 00:00:00
abstract：:Extended biparental care is rare in insects but provides an excellent opportunity to investigate the interaction between the endocrine system and the physical and social environment in the regulation of this behavior. Burying beetles (Nicrophorus spp.) have facultative biparental care and depend on locating a small ve...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2003.09.012
更新日期：2004-03-01 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：:Pregnancy and the postpartum period are times of profound behavioral change including alterations in cognitive function. This has been most often studied using hippocampal-dependent tasks assessing spatial learning and memory. However, less is known about the cognitive effects of motherhood for tasks that rely on area...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2016.12.015
更新日期：2017-03-01 00:00:00
abstract：:Fecal testosterone and cortisol levels were analyzed from six wild male muriquis (Brachyteles arachnoides) over a 19-month period at the Estação Biológica de Caratinga in Minas Gerais, Brazil, to investigate the hormonal correlates of seasonal sexual behavior and environmental conditions. Group mean testosterone level...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1006/hbeh.1998.1505
更新日期：1999-04-01 00:00:00
abstract：:A field experiment was performed implanting female pied flycatchers (Ficedula hypoleuca) during the nest-building period with silastic tubes containing 17 beta-estradiol. Control females were given empty silastic tubes. The pied flycatcher is a polygamous and polyterritorial bird species. During two successive breedin...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/0018-506x(91)90038-j
更新日期：1991-03-01 00:00:00
abstract：:Monogamous prairie voles (Microtus ochrogaster) form mating-based pair bonds. Although wild prairie voles rarely re-pair following loss of a partner, laboratory studies have shown that previous pairing and mating does not negate the ability to form a new partner preference. However, little is known about how prior bon...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2020.104847
更新日期：2020-11-01 00:00:00
abstract：:Coping strategies have been associated with differential stress responsivity, perhaps providing a valuable neurobiological marker for susceptibility to the emergence of depressogenic symptoms or vulnerability to other anxiety-related disorders. Rats profiled with a flexible coping phenotype, for example, exhibit incre...
journal_title：Hormones and behavior
pub_type： 杂志文章
doi：10.1016/j.yhbeh.2017.07.011
更新日期：2017-09-01 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
