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Differential regulation of nuclear receptors, neuropeptides and peptide hormones in the hypothalamus and pituitary of food restricted rats
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Functional Pharmacology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Functional Pharmacology.
2005 (English)In: Brain Research, ISSN 0006-8993, E-ISSN 1872-6240, Vol. 133, no 1, 37-46 p.Article in journal (Refereed) Published
Abstract [en]

Food restriction is associated with a number of endocrine disturbances. We validated the experimental conditions for several house-keeping genes and determined the effects of 12 day 50% food restriction on hypothalamic and pituitary transcription of genes involved in different neuroendocrine systems, using real-time quantitative polymerase chain reaction (PCR). A total of 7 nuclear receptors and 12 neuropeptides and peptide hormones were investigated in the dorsal and ventral hypothalamus and the pituitary gland in rats. In the hypothalamus, food restriction reduced mRNA levels of estrogen receptor alpha (ERalpha), progesterone receptor, glucocorticoid receptor, thyroid hormone receptor alpha and beta, pro-opiomelanocortin (POMC), growth hormone-releasing factor (GHRF), corticotropin-releasing factor (CRF), thyrotropin-releasing factor (TRF), somatostatin, and increased that of neuropeptide Y (NPY). In the pituitary, the treatment reduced growth hormone (GH), luteinizing hormone beta (LHbeta) and thyrotropin beta, but increased ERalpha mRNA levels. The study provides a map of how food restriction affects the regulation of a number of transcripts involved in neuroendocrine control.

Place, publisher, year, edition, pages
2005. Vol. 133, no 1, 37-46 p.
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Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-76283DOI: 10.1016/j.molbrainres.2004.09.025PubMedID: 15661363OAI: oai:DiVA.org:uu-76283DiVA: diva2:104195
Available from: 2006-03-01 Created: 2006-03-01 Last updated: 2017-12-14Bibliographically approved

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Haitina, Tatjana

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