Alterations in Incidence of Mating and Copulation-Induced Ovulation After Olfactory Bulb Ablation in Female Rats

Curry, John J.

doi:10.1677/joe.0.0620245

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…Thus a shortening of the duration of the estrous cycle was shown in female rats when they were exposed to a male rat or to the urine from animals of the same strain [1][2][3][4][5][6][7][8][9][10][11][12]. In contrast, suppression of the ol factory signals by removal of the olfactory bulbs resulted in delayed onset of sexual maturity [14] or in a reduced num ber of animals ovulating after mating [11]. …”

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confidence: 99%

Release of LH in the Female Rat by Olfactory Stimuli

Beltramino

Taleisnik²

1983

Neuroendocrinology

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The release of LH in ovariectomized, estrogen-primed rats exposed to male or female rats was studied. The concentration of LH in the serum was measured in blood samples obtained by an indwelling jugular cannula. A blood sample was taken at 12.00 h and then every hour up to 18.00 h following exposure to another rat on the opposite side of a double wire mesh screen. LH in the serum of control non-exposed rats showed a small rise between 16.00 and 18.00 h as compared to earlier values. Rats exposed to intact or castrated male rats exhibited an enhanced release. Exposure to ovariectomized rats failed to induce any change in the release of LH but exposure to ovariectomized, estrogen-primed rats produced a significant increase. No effect on LH release was seen in animals exposed to a female diestrous rat or to a pregnant rat. Rats exposed to an empty cage which had been soiled by housing a male rat for 3 days, showed an enhanced release of LH similar to those exposed to a cage containing the male rat, indicating the importance of olfactory stimuli in the response. Ovariectomized rats whose vomeronasal organs had been removed or whose accessory olfactory bulbs were lesioned, failed to show any effect on the release of LH when exposed to a male rat. It is concluded that olfactory stimuli arising from male or female rats are capable of modulating the release of LH in female rats and that perception of these stimuli involves the vomeronasal organ-accessory olfactory bulb system.

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confidence: 99%

Release of LH in the Female Rat by Olfactory Stimuli

Beltramino

Taleisnik²

1983

Neuroendocrinology

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“…For example, the olfactory system has been shown to be important in mediating copulation-induced ovulation in pentobarbitone-blocked pro-oestrous rats (Curry, 1974).…”

Section: Introductionmentioning

confidence: 99%

The role of neurotransmitters in mediating copulation-induced ovulation in the rat

Leipheimer¹,

Condon²,

Curry³

1984

Journal of Endocrinology

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Pentobarbitone-blocked pro-oestrous rats were subjected to either limited mating (maximum of 30 mounts), all-night cohabitation with males or stimulation of the vagina and cervix with a glass rod (2 or 5 min) to determine which type of stimulus was most effective in inducing ovulation. All-night cohabitation was the most successful procedure and resulted in 100% ovulation in those rats which mated. Treatment with either phenoxybenzamine, propranolol or pimozide did not interfere with this copulation-induced ovulation whereas methysergide treatment completely blocked copulation-induced ovulation. Administration of atropine resulted in a loss of mating behaviour and these animals therefore did not ovulate. Further experiments provided evidence that administration of atropine also blocked ovulation in response to vaginal stimulation with a glass rod. Pretreatment with methysergide or atropine had no effect upon the percentage of pentobarbitone-blocked, pro-oestrous rats ovulating in response to administration of LH releasing hormone (LHRH). However, those rats given atropine shed significantly fewer ova per rat following LHRH or LH infusion when compared with controls. These results suggest that the synaptic mechanisms responsible for mediating copulation-induced ovulation are different from those mediating steroid-induced ovulation, and that ovarian cholinergic receptors may play a role in ovulation.

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“…Studies on female rats by Kling (1964) showed that there was a slight reduction in mating capacity and gonadal weights after either bilateral or unilateral olfactory bulb lesions during infancy. Curry (1974) also reported that bulbectomized female rats mated less frequently than normal females. Orbach and Kling (1966), however, found no significant decreases in mating after peripheral olfactory impairment during infancy.…”

Section: Procedures For Producing Olfactory Deficitmentioning

confidence: 94%

Environmental and neuroendocrine control of puberty and ovarian function in gilts and beef heifers

Awotwi

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Alterations in Incidence of Mating and Copulation-Induced Ovulation After Olfactory Bulb Ablation in Female Rats

Cited by 10 publications

References 18 publications

Release of LH in the Female Rat by Olfactory Stimuli

Release of LH in the Female Rat by Olfactory Stimuli

The role of neurotransmitters in mediating copulation-induced ovulation in the rat

Environmental and neuroendocrine control of puberty and ovarian function in gilts and beef heifers

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