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Social stress induces hypothalamo-pituitary-adrenal axis responses in lactating rats bred for high trait anxiety.

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Title: Social stress induces hypothalamo-pituitary-adrenal axis responses in lactating rats bred for high trait anxiety.
Authors: Douglas, A. J. (AUTHOR), Meddle, S. L. (AUTHOR), Kroemer, S. (AUTHOR), Muesch, W. (AUTHOR), Bosch, O. J. (AUTHOR), Neumann, I. D. (AUTHOR)
Source: European Journal of Neuroscience. Mar2007, Vol. 25 Issue 5, p1599-1603. 5p. 3 Graphs.
Subjects: Hypothalamic-pituitary-adrenal axis, Lactation, Physiological stress, Amygdaloid body, Messenger RNA, Gene expression, Anxiety
Abstract: Hypothalamo-pituitary-adrenal axis responses to various stressors are typically attenuated during lactation, including in rats selectively bred for high or low anxiety. As high-anxiety dams are more aggressive towards intruders than low-anxiety dams during maternal defence, we investigated their hypothalamo-pituitary-adrenal axis responses to this social stress. Maternal defence induced elevated stress responses in high-anxiety dams only; nerve-growth-factor-induced gene B mRNA expression in the parvocellular paraventricular nucleus and adrenocorticotropin hormone secretory responses were substantially enhanced after maternal defence. In contrast, secretory responses to a non-social stress (elevated platform) were not different between high- and low-anxiety dams. Thus, responsiveness of the stress axis in lactation is dependent upon the innate level of anxiety of the dam and, as a consequence, her reactiveness to social threat. [ABSTRACT FROM AUTHOR]
Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Social stress induces hypothalamo-pituitary-adrenal axis responses in lactating rats bred for high trait anxiety.
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  Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neuroscience%22">European Journal of Neuroscience</searchLink>. Mar2007, Vol. 25 Issue 5, p1599-1603. 5p. 3 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Hypothalamic-pituitary-adrenal+axis%22">Hypothalamic-pituitary-adrenal axis</searchLink><br /><searchLink fieldCode="DE" term="%22Lactation%22">Lactation</searchLink><br /><searchLink fieldCode="DE" term="%22Physiological+stress%22">Physiological stress</searchLink><br /><searchLink fieldCode="DE" term="%22Amygdaloid+body%22">Amygdaloid body</searchLink><br /><searchLink fieldCode="DE" term="%22Messenger+RNA%22">Messenger RNA</searchLink><br /><searchLink fieldCode="DE" term="%22Gene+expression%22">Gene expression</searchLink><br /><searchLink fieldCode="DE" term="%22Anxiety%22">Anxiety</searchLink>
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  Data: Hypothalamo-pituitary-adrenal axis responses to various stressors are typically attenuated during lactation, including in rats selectively bred for high or low anxiety. As high-anxiety dams are more aggressive towards intruders than low-anxiety dams during maternal defence, we investigated their hypothalamo-pituitary-adrenal axis responses to this social stress. Maternal defence induced elevated stress responses in high-anxiety dams only; nerve-growth-factor-induced gene B mRNA expression in the parvocellular paraventricular nucleus and adrenocorticotropin hormone secretory responses were substantially enhanced after maternal defence. In contrast, secretory responses to a non-social stress (elevated platform) were not different between high- and low-anxiety dams. Thus, responsiveness of the stress axis in lactation is dependent upon the innate level of anxiety of the dam and, as a consequence, her reactiveness to social threat. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1111/j.1460-9568.2007.05380.x
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Lactation
        Type: general
      – SubjectFull: Physiological stress
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      – SubjectFull: Anxiety
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              Text: Mar2007
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