Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats
Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally adm...
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| Autor*in: |
Brunton, P. J. [verfasserIn] Russell, J. A. [verfasserIn] |
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E-Artikel |
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| Erschienen: |
Oxford, UK: Blackwell Science, Ltd ; 2003 |
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Online-Ressource |
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2003 ; Blackwell Publishing Journal Backfiles 1879-2005 |
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In: Journal of neuroendocrinology - Oxford [u.a.] : Wiley-Blackwell, 1989, 15(2003), 7, Seite 0 |
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volume:15 ; year:2003 ; number:7 ; pages:0 |
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| DOI / URN: |
10.1046/j.1365-2826.2003.01045.x |
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| 520 | |a Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. | ||
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10.1046/j.1365-2826.2003.01045.x doi (DE-627)NLEJ243102542 DE-627 ger DE-627 rakwb Brunton, P. J. verfasserin aut Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats Oxford, UK Blackwell Science, Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| ACTH Russell, J. A. verfasserin aut In Journal of neuroendocrinology Oxford [u.a.] : Wiley-Blackwell, 1989 15(2003), 7, Seite 0 Online-Ressource (DE-627)NLEJ243926375 (DE-600)2007386-0 1365-2826 nnns volume:15 year:2003 number:7 pages:0 http://dx.doi.org/10.1046/j.1365-2826.2003.01045.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 15 2003 7 0 |
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10.1046/j.1365-2826.2003.01045.x doi (DE-627)NLEJ243102542 DE-627 ger DE-627 rakwb Brunton, P. J. verfasserin aut Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats Oxford, UK Blackwell Science, Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| ACTH Russell, J. A. verfasserin aut In Journal of neuroendocrinology Oxford [u.a.] : Wiley-Blackwell, 1989 15(2003), 7, Seite 0 Online-Ressource (DE-627)NLEJ243926375 (DE-600)2007386-0 1365-2826 nnns volume:15 year:2003 number:7 pages:0 http://dx.doi.org/10.1046/j.1365-2826.2003.01045.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 15 2003 7 0 |
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10.1046/j.1365-2826.2003.01045.x doi (DE-627)NLEJ243102542 DE-627 ger DE-627 rakwb Brunton, P. J. verfasserin aut Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats Oxford, UK Blackwell Science, Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| ACTH Russell, J. A. verfasserin aut In Journal of neuroendocrinology Oxford [u.a.] : Wiley-Blackwell, 1989 15(2003), 7, Seite 0 Online-Ressource (DE-627)NLEJ243926375 (DE-600)2007386-0 1365-2826 nnns volume:15 year:2003 number:7 pages:0 http://dx.doi.org/10.1046/j.1365-2826.2003.01045.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 15 2003 7 0 |
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10.1046/j.1365-2826.2003.01045.x doi (DE-627)NLEJ243102542 DE-627 ger DE-627 rakwb Brunton, P. J. verfasserin aut Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats Oxford, UK Blackwell Science, Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| ACTH Russell, J. A. verfasserin aut In Journal of neuroendocrinology Oxford [u.a.] : Wiley-Blackwell, 1989 15(2003), 7, Seite 0 Online-Ressource (DE-627)NLEJ243926375 (DE-600)2007386-0 1365-2826 nnns volume:15 year:2003 number:7 pages:0 http://dx.doi.org/10.1046/j.1365-2826.2003.01045.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 15 2003 7 0 |
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10.1046/j.1365-2826.2003.01045.x doi (DE-627)NLEJ243102542 DE-627 ger DE-627 rakwb Brunton, P. J. verfasserin aut Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats Oxford, UK Blackwell Science, Ltd 2003 Online-Ressource nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. 2003 Blackwell Publishing Journal Backfiles 1879-2005 |2003|||||||||| ACTH Russell, J. A. verfasserin aut In Journal of neuroendocrinology Oxford [u.a.] : Wiley-Blackwell, 1989 15(2003), 7, Seite 0 Online-Ressource (DE-627)NLEJ243926375 (DE-600)2007386-0 1365-2826 nnns volume:15 year:2003 number:7 pages:0 http://dx.doi.org/10.1046/j.1365-2826.2003.01045.x text/html Verlag Deutschlandweit zugänglich Volltext GBV_USEFLAG_U ZDB-1-DJB GBV_NL_ARTICLE AR 15 2003 7 0 |
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Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. |
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Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. |
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Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">NLEJ243102542</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20210707172523.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">120427s2003 xx |||||o 00| ||und c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1046/j.1365-2826.2003.01045.x</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ243102542</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Brunton, P. J.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Hypothalamic-Pituitary-Adrenal Responses to Centrally Administered Orexin-A are Suppressed in Pregnant Rats</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Oxford, UK</subfield><subfield code="b">Blackwell Science, Ltd</subfield><subfield code="c">2003</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Orexins are hypothalamic neuropeptides that stimulate arousal and food intake but also activate the hypothalamic-pituitary-adrenal (HPA) axis. During late pregnancy in the rat, the responsiveness of the HPA axis to stressors is attenuated, and thus we investigated HPA axis responses to centrally administered orexin-A during pregnancy. Intracerebroventricular injection of orexin-A (0.5 µg, 140 pmol) significantly increased plasma adrenocorticotropic hormone and corticosterone concentration within 10 min in virgin female Sprague-Dawley rats, but had no effect in day 21 pregnant rats. Orexin-A significantly increased corticotropin-releasing hormone (CRH) mRNA expression, measured by in situ hybridization, in the paraventricular nucleus (PVN) of the virgin group but not in the pregnant group. Thus, the responsiveness of PVN CRH neurones to orexin-A, and hence the pituitary-adrenal axis, is markedly reduced in pregnancy. This may favour anabolic adaptations in pregnancy.</subfield></datafield><datafield tag="533" ind1=" " ind2=" "><subfield code="d">2003</subfield><subfield code="f">Blackwell Publishing Journal Backfiles 1879-2005</subfield><subfield code="7">|2003||||||||||</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">ACTH</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Russell, J. 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