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  • Title: Growth factors and steroid hormones: a complex interplay in the hypothalamic control of reproductive functions.
    Author: Melcangi RC, Martini L, Galbiati M.
    Journal: Prog Neurobiol; 2002 Aug; 67(6):421-49. PubMed ID: 12385863.
    Abstract:
    The mechanisms through which LHRH-secreting neurons are controlled still represent a crucial and debated field of research in the neuroendocrine control of reproduction. In the present review, we have specifically considered two potential signals reaching these hypothalamic neurons: steroid hormones and growth factors. Examples of the relevant physiological role of the interactions between these two families of biologically acting molecules have been provided. In many cases, these interactions occur at the level of hypothalamic astrocytes, which are presently accepted as functional partners of the LHRH-secreting neurons. On the basis of the observations here summarized, we have formulated the hypothesis that a functional co-operation of steroid hormones and growth factors occurring in the hypothalamic astrocytic compartment represents a key factor in the neuroendocrine control of reproductive functions.
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