Effects of steroid hormones on gene expression of glial markers in the central and peripheral nervous system: variations induced by aging
Articolo
Data di Pubblicazione:
1998
Citazione:
Effects of steroid hormones on gene expression of glial markers in the central and peripheral nervous system: variations induced by aging / R.C. Melcangi, V. Magnaghi, I. Cavarretta, M.A. Riva, F. Piva, L. Martini. - In: EXPERIMENTAL GERONTOLOGY. - ISSN 0531-5565. - 33:7-8(1998), pp. 827-836.
Abstract:
The present article summarizes our data regarding: (a) the effect of sex steroids on the expression of a specific astrocytic marker in glial cell cultures (GFAP); (b) the effects of aging on two markers of the peripheral myelin (glycoprotein Po and the myelin basic protein, MBP); (c) the possible modification of the damaging effects of aging on these two markers by the in vivo administration of progesterone and its derivatives; and, finally, (d) the effect of progesterone derivatives on the gene expression of Po in cultures of rat Schwann cells. The data obtained have indicated that progesterone and its 5 alpha-reduced metabolites may play an important role in the control of gene expression of GFAP and Po, respectively, in type 1 astrocytes and Schwann cells. It has also been found that the gene expression of Po and MBP is dramatically decreased in the myelin of the sciatic nerve of aged male rats and that the aged-linked decrease of the gene expression of Po is partially reversible with steroid treatment.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Rats ; Peripheral Nerves ; Animals ; Sex Characteristics ; Neuroglia ; Aging ; Gene Expression ; Brain ; Gonadal Steroid Hormones ; Male ; Biological Markers
Elenco autori:
R.C. Melcangi, V. Magnaghi, I. Cavarretta, M.A. Riva, F. Piva, L. Martini
Link alla scheda completa: