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The CNS regulation of the reproductive axis in male rats by prolactin-releasing peptide (PrRP)

ReferenceS14616
Principal Investigator / Supervisor Professor Mohammad Ghatei
Co-Investigators /
Co-Supervisors
Professor Stephen Bloom, Dr Caroline Small
Institution Imperial College London
DepartmentDept of Medicine
Funding typeResearch
Value (£) 169,400
StatusCompleted
TypeResearch Grant
Start date 01/09/2001
End date 01/09/2004
Duration36 months

Abstract

Prolactin-releasing peptide (PrRP) was recently isolated from the hypothalamus. We have shown it to activate the hypothalamo-pituitary-gonadal (HPG) axis, causing a 3-fold rise in plasma testosterone, comparable to LHRH, the most powerful stimulus known. To understand the physiology of PrRP's potent effect on testosterone, we will study: 1) co-localization of PrRP and its receptors with hypothalamic peptides known to influence the HPG axis, 2) the dose-response and in vivo mapping of the hypothalamic nuclei mediating PrRP's activation of the HPG axis, 3) changes in PrRP mRNA, peptide, and receptor mRNA with altered sex hormone and nutritional environment, 4) effects of PrRP on the fasting induced inhibition of the HPG axis.

Summary

unavailable
Committee Closed Committee - Animal Sciences (AS)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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