Responses to systemic angiotensin II in lactating and non-lactating goats

Hossaini-Hilali, J.; Olsson, Kjell

doi:10.1016/0167-0115(96)00056-0

Regulatory Peptides

1996

DOI: 10.1016/0167-0115(96)00056-0

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Responses to systemic angiotensin II in lactating and non-lactating goats

J. Hossaini-Hilali

Kjell Olsson

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Cited by 2 publications

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“…However, little is known about the functionality of the RAS during lactation. There is a decreased pressor response to ANG II in lactating rabbits (15) and goats (10,11). One study (11) examined the dipsogenic effect of ANG II during lactation.…”

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confidence: 99%

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Brain angiotensinergic mediation of enhanced water consumption in lactating rats

Speth

Smith

Grove

2002

American Journal of Physiology-Regulatory, Integrative and Comp

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The mechanism by which lactating rats increase fluid consumption to meet the demands of milk production is unknown. Because ANG II is the most potent dipsogenic stimulus known, this study examined whether angiotensinergic signaling plays a role in enhanced drinking in lactating rats. ANG II administered intracerebroventricularly caused a significantly greater dipsogenic response in lactating rats than in control rats, suggesting that dipsogenic responsivity to ANG II is enhanced in the brains of lactating rats. The angiotensin type 1 (AT1) ANG II receptor subtype antagonist SKF-108566, also given intracerebroventricularly, caused a significant reduction in water consumption in lactating rats, whereas it did not significantly affect water intake in control rats. In contrast, stimulation of drinking by the muscarinic agonist carbachol, also administered intracerebroventricularly, did not differ between lactating and control rats. Inhibition of drinking by the muscarinic antagonist atropine also did not differ significantly between lactating and control rats. These results suggest that the increased drinking in lactating rats involves an increased responsivity to ANG II in neurons that mediate dipsogenesis, as well as an enhancement in the amount of angiotensinergic input to these ANG II-responsive neurons.

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confidence: 99%

“…There is a decreased pressor response to ANG II in lactating rabbits (15) and goats (10,11). One study (11) examined the dipsogenic effect of ANG II during lactation. However, no dipsogenic response to ANG II was found in either lactating or control goats adapted to arid conditions.…”

mentioning

confidence: 99%

Brain angiotensinergic mediation of enhanced water consumption in lactating rats

Speth

Smith

Grove

2002

American Journal of Physiology-Regulatory, Integrative and Comp

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Fear and power-dominance motivation: proposed contributions of peptide hormones present in cerebrospinal fluid and plasma

Sewards

2003

Neuroscience & Biobehavioral Reviews

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Responses to systemic angiotensin II in lactating and non-lactating goats

Cited by 2 publications

References 16 publications

Brain angiotensinergic mediation of enhanced water consumption in lactating rats

Brain angiotensinergic mediation of enhanced water consumption in lactating rats

Fear and power-dominance motivation: proposed contributions of peptide hormones present in cerebrospinal fluid and plasma

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