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  • Title: In situ hybridization: mRNA levels of secretogranin II, VGF and peptidylglycine alpha-amidating monooxygenase in brain of salt-loaded rats.
    Author: Mahata SK, Mahata M, Fischer-Colbrie R, Winkler H.
    Journal: Histochemistry; 1993 Apr; 99(4):287-93. PubMed ID: 8500992.
    Abstract:
    The mRNA levels of secretogranin II (SgII), VGF and peptidylglycine alpha-amidating monooxygenase (PAM) were studied in brains of salt loaded rats by in situ hybridization. In these rats the levels of the message for secretogranin II and VGF were increased in the paraventricular, supraoptic and retrochiasmatic nuclei and in the subfornical organ. The increases ranged from 416 to 721% for SgII and from 778 to 890% for VGF. The PAM message was also elevated in these brain regions; however, the maximal increase was only 221%. We conclude that the message for all secretory peptides investigated so far, i.e. vasopressin, galanin, secretogranin II and VGF are upregulated to a similar degree in the hypothalamus of salt-located rats. The relative increase in mRNA for the enzyme peptidylglycine alpha-amidating monooxygenase occurred to a much lower extent, and was comparable to the limited changes previously seen for carboxypeptidase H.
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