The Effect of Hypothalamic Deafferentation on Rat Growth Hormone-Releasing Factor (rGRF)-Like Immunoreactivity Content in the Medial Basal Hypothalamus of Rats
- 1 January 1987
- journal article
- Published by Japan Endocrine Society in Endocrinologia Japonica
- Vol. 34 (3) , 423-426
- https://doi.org/10.1507/endocrj1954.34.423
Abstract
Rat growth hormone releasing factor (rGRF)- and somatostatin (SRIF)-like immunoreactivities (LI) were determined by radioimmunoassay in the medial basal hypothalamus (MBH) of the rat with either complete deafferentation (CD) or a sham operation. Two weeks after the surgery the mean amount of SRIF-LI in the isolated MBH was about 70% less than that in the sham-operated animals. On the other hand, the mean rGRF-LI in the MBH decreased only approximately 30% as compared to the levels in the sham-operated animals, the difference being statistically insignificant. These findings are consistent with anatomical evidence that the majority of the GRF perikarya are located in the arcuate nucleus, but a few are found outside the MBH, whereas the majority of the SRIF perikarya are located outside the MBH.Keywords
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