Aromatase inhibition abolishes courtship behaviours in the ring dove (Streptopelia risoria) and reduces androgen and progesterone receptors in the hypothalamus and anterior pituitary gland

@article{Belle2005AromataseIA,
  title={Aromatase inhibition abolishes courtship behaviours in the ring dove (Streptopelia risoria) and reduces androgen and progesterone receptors in the hypothalamus and anterior pituitary gland},
  author={M. D. C. Belle and Peter J. Sharp and Robert William Lea},
  journal={Molecular and Cellular Biochemistry},
  year={2005},
  volume={276},
  pages={193-204}
}
The aim of this study was to determine in the ring dove, the effects of aromatase inhibition on the expression of aggressive courtship and nest-soliciting behaviours in relation to the distribution of cells containing immunoreactive androgen (AR) and progesterone (PR) receptor in the hypothalamus and pituitary gland. Isolated sexually experienced ring doves were transferred in opposite sex pairs to individual breeding cages, and then injected with the aromatase inhibitor, fadrozole (four males… 
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This chapter defines courtship behaviors as those occurring between a male and a female at close proximity and that persuades a member of the opposite sex to copulate.
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TLDR
The findings of this study support a role for aromatase activity in reproduction, but no direct role in electric signaling behavior in non-breeding fish, and provide information on behaviors and neural circuits that are potentially affected by local estradiol production in A. leptorhynchus.
Hormones and the neuromuscular control of courtship in the golden-collared manakin (Manacus vitellinus)
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The behavioral neuroendocrinology of this male's courtship is studied, combining field behavioral observations with anatomical, biochemical and molecular laboratory-based studies to highlight the value of studying non-traditional species to illuminate physiological adaptations and stimulate future research on other species with complex behaviors.
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TLDR
The hypothesis that aromatase specifically modulates the nest soliciting display in intact male ring doves is supported and further evidence for separate hormonal control of different courtship displays in this species is provided.
Sex steroid communication in the ring dove brain during courtship.
TLDR
The increase in PR-ir staining intensity in AR-ir neurons in courting birds suggests that this progesterone-dependent termination of aggressive courtship display in males occurs at the receptor level and may be orchestrated by central oestrogen.
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TLDR
Progesterone, in the presence of the circulating androgen, virtually completely inhibited the occurrence of the bowing-coo.
Localization of Progesterone Receptor in Brain and Pituitary of the Ring Dove: Influence of Breeding Cycle and Estrogen
TLDR
Quantitative analysis demonstrated that the density of cell nuclei containing PR-ir in the POA, PPM, and PLH in brooding birds was significantly higher than in E2-treated doves or in birds at other stages of the reproductive cycle.
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TLDR
Group of males that had shown either full courtship or courtship lacking nest soliciting were castrated and treated intramuscularly with testosterone propionate or oestradiol monobenzoate and tested for 16 successive days with females to study the possible endocrine factors underlying the development and maintenance of nest solicititing.
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TLDR
The findings indicate that the formation of behaviourally effective oestrogen in a specific brain target area is under hormonal control and suggest a role for this regulatory mechanism in the integration of courtship behaviour in the male dove.
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TLDR
Combined estrogen and progesterone treatment was the most effective hormone regimen for eliciting both behavior patterns in females and also facilitated these behaviors in their untreated mates.
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TLDR
DHTP is behaviorally effective in this species, “aggressive’ courtship and “nest-oriented” courtship have different patterns of steroid specificity, and wing-flipping in intact males may result from conversion of androgen to estrogen by the brain.
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TLDR
There was a significant positive correlation between progresterone concentration and follicular development and oviduct weight during courtship and there was no significant changes detected i n progesterone concentration during the cycle in males.
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TLDR
It is concluded that circulating androgen modulates preoptic aromatase activity, which is higher in males than females, and is decreased in both short (30 day) and long term (180 day) castrates, indicating that gonadal hormones maintain POA aromat enzyme activity.
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