Search Results - "Ball, G F"

Rapid Decreases in Preoptic Aromatase Activity and Brain Monoamine Concentrations after Engaging in Male Sexual Behavior by Cornil, C. A, Dalla, C, Papadopoulou-Daifoti, Z, Baillien, M, Dejace, C, Ball, G. F, Balthazart, J

“…In Japanese quail, as in rats, the expression of male sexual behavior over relatively long time periods (days to weeks) is dependent on the local production of…”
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Is Sexual Motivational State Linked to Dopamine Release in the Medial Preoptic Area? by Kleitz-Nelson, H. K, Dominguez, J. M, Cornil, C. A, Ball, G. F

“…The medial preoptic area (mPOA) is a key site for the dopaminergic enhancement of male sexual behavior. Dopamine release increases in the rat mPOA with mating,…”
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New insights into the regulation and function of brain estrogen synthase (aromatase) by Balthazart, Jacques, Ball, Gregory F.

“…In the brain, conversion of androgens into estrogens by the enzyme aromatase (estrogen synthase) is a key mechanism by which testosterone regulates many…”
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Hormonal regulation of brain circuits mediating male sexual behavior in birds by Ball, Gregory F., Balthazart, Jacques

“…Male sexual behavior in both field and laboratory settings has been studied in birds since the 19th century. Birds are valuable for the investigation of the…”
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Variation in Gonadotrophin-Releasing Hormone-1 Gene Expression in the Preoptic Area Predicts Transitions in Seasonal Reproductive State by Stevenson, T. J., Hahn, T. P., Ball, G. F.

“…In many seasonally reproducing animals, the experience of prolonged exposure to constant photoperiods results in the induction of a state of…”
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Cloning of Gonadotropin-Releasing Hormone I Complementary DNAs in Songbirds Facilitates Dissection of Mechanisms Mediating Seasonal Changes in Reproduction by Stevenson, T. J, Lynch, K. S, Lamba, P, Ball, G. F, Bernard, D. J

“…Temperate zone animals exhibit seasonal variation in reproductive physiology. In most cases, seasonal changes in reproductive states are regulated by changes…”
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Calcium-dependent phosphorylation processes control brain aromatase in quail by Balthazart, Jacques, Baillien, Michelle, Charlier, Thierry, Ball, Gregory

“…Increased gene transcription activated by the binding of sex steroids to their cognate receptors is one important way in which oestrogen synthase (aromatase)…”
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Sex Differences in the Expression of Sex Steroid Receptor mRNA in the Quail Brain by Voigt, C., Ball, G. F., Balthazart, J.

“…In Japanese quail, males will readily exhibit the full sequence of male‐typical sexual behaviors but females never show this response, even after ovariectomy…”
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Gonadotropin-releasing hormone plasticity: A comparative perspective by Stevenson, T.J, Hahn, T.P, MacDougall-Shackleton, S.A, Ball, G.F

“…Highlights ► GnRH1 governs reproductive physiology in the vast majority of vertebrates. ► Environmental cues regulate GnRH1 mRNA and protein expression. ►…”
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Rapid changes in production and behavioral action of estrogens by Balthazart, J., Cornil, C.A., Taziaux, M., Charlier, T.D., Baillien, M., Ball, G.F.

“…It is well established that sex steroid hormones bind to nuclear receptors, which then act as transcription factors to control brain sexual differentiation and…”
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Sexual behavior activates the expression of the immediate early genes c- fos and Zenk ( egr- 1) in catecholaminergic neurons of male Japanese quail by Charlier, T.D., Ball, G.F., Balthazart, J.

“…We analyzed the expression of the immediate early genes c- fos and Zenk ( egr- 1) in the brain of male quail that were gonadally intact (I) or castrated and…”
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Is brain estradiol a hormone or a neurotransmitter? by Balthazart, Jacques, Ball, Gregory F.

“…Mounting evidence indicates that, besides their well-known hormonal mode of action at the genetic level, estrogens such as 17β-estradiol also influence brain…”
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Preoptic aromatase modulates male sexual behavior: slow and fast mechanisms of action by Balthazart, Jacques, Baillien, Michelle, Cornil, Charlotte A., Ball, Gregory F.

“…In many species, copulatory behavior and appetitive (anticipatory/motivational) aspects of male sexual behavior are activated by the action in the preoptic…”
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Seasonal and individual variation in singing behavior correlates with alpha 2-noradrenergic receptor density in brain regions implicated in song, sexual, and social behavior by Heimovics, S.A, Cornil, C.A, Ellis, J.M.S, Ball, G.F, Riters, L.V

“…Abstract In seasonally breeding male songbirds, both the function of song and the stimuli that elicit singing behavior change seasonally. The catecholamine…”
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Rapid effects of aromatase inhibition on male reproductive behaviors in Japanese quail by Cornil, Charlotte A., Taziaux, Mélanie, Baillien, Michelle, Ball, Gregory F., Balthazart, Jacques

“…Non-genomic effects of steroid hormones on cell physiology have been reported in the brain. However, relatively little is known about the behavioral…”
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Song activation by testosterone is associated with an increased catecholaminergic innervation of the song control system in female canaries by Appeltants, D, Ball, G.F, Balthazart, J

“…In canaries, singing and a large number of morphological features of the neural system that mediates the learning, perception and production of song exhibit…”
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Interactions Between Kinases and Phosphatases in the Rapid Control of Brain Aromatase by Balthazart, J., Baillien, M., Ball, G. F.

“…Aromatization of testosterone into oestradiol plays a key role in the activation of male sexual behaviour in many vertebrate species. Rapid changes in brain…”
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Rapid and reversible inhibition of brain aromatase activity by Balthazart, J, Baillien, M, Ball, G F

“…Many actions of androgens require their conversion via the enzyme aromatase into oestrogens. Changes in brain aromatase activity are thought to take place via…”
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Plasticity in the expression of the steroid receptor coactivator 1 in the Japanese quail brain: Effect of sex, testosterone, stress and time of the day by Charlier, T.D., Ball, G.F., Balthazart, J.

“…Analysis of nuclear receptor action on the eukaryotic genome highlights the importance of coactivators on gene transcription. The steroid receptor…”
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The "Challenge Hypothesis": Theoretical Implications for Patterns of Testosterone Secretion, Mating Systems, and Breeding Strategies by Wingfield, John C., Hegner, Robert E., Dufty, Alfred M., Ball, Gregory F.

“…A combination of field and laboratory investigations has revealed that the temporal patterns of testosterone (T) levels in blood can vary markedly among…”
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