Adrenocorticoid action in the spinal cord: Some unique molecular properties of glucocorticoid receptors

1. Glucocorticoid hormones affect several functions of the spinal cord, such as synaptic transmission, biogenic amine content, lipid metabolism, and the activity of some enzymes (ornithine decarboxylase, glycerolphosphate dehydrogenase), indicating that this tissue is a target of adrenal hormones. 2...

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Autor principal: De Nicola, A.F
Otros Autores: Moses, D.F, González, S., Ortí, E.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Kluwer Academic Publishers-Plenum Publishers 1989
Acceso en línea:Registro en Scopus
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024 7 |2 cas  |a corticosterone, 50-22-6; dexamethasone, 50-02-2; Corticosterone, 50-22-6; Dexamethasone, 50-02-2; Glucocorticoids; Receptors, Glucocorticoid; Ribonucleases, EC 3.1.- 
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030 |a CMNED 
100 1 |a De Nicola, A.F. 
245 1 0 |a Adrenocorticoid action in the spinal cord: Some unique molecular properties of glucocorticoid receptors 
260 |b Kluwer Academic Publishers-Plenum Publishers  |c 1989 
270 1 0 |m De Nicola, A.F.; Laboratorio de Bioquímica Neuroendócrina, Instituto de Biología y Medicina Experimental, Obligado 2490, Buenos Aires, 1428, Argentina 
506 |2 openaire  |e Política editorial 
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504 |a Heller, C.L., Coirini, H., De Nicola, A.F., Influence of phosphatase inhibitors and nucleotides on (3H)-dexamethasone binding in cytosol of human placenta (1984) J. Steroid Biochem., 21, pp. 381-386 
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504 |a Magariños, A.M., Estivariz, F., Morano, M.I., De Nicola, A.F., Regulation of the central nervous system-pituitary adrenal axis in rats after neonatal treatment with monosodium glutamate (1988) Neuroendocrinology, 48, pp. 105-111 
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504 |a Moses, D.F., Ortí, E., De Nicola, A.F., A comparison of the glucocorticoid receptor system in the spinal cord and hippocampus (1987) Brain Res., 408, pp. 118-124 
504 |a Moses, D.F., Gonzalez, S., Ortí, E., De Nicola, A.F., Heterogeneity and properties of transformation of corticosteroid receptors in spinal cord and hippocampus (1989) Brain Res., 481, pp. 317-324 
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504 |a Ortí, E., Magariños, A.M., De Nicola, A.F., Evidence of high affinity, stereoselective binding sites for (3H)-aldosterone in the spinal cord (1986) Neuroendocrinology, 43, pp. 404-409 
504 |a Ortí, E., Moses, D.F., Grillo, C., De Nicola, A.F., Glucocorticoid regulation of glycerolphosphate dehydrogenase and ornithine decarboxylase activities in the spinal cord of the rat (1987) J. Neurochem., 48, pp. 425-431 
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520 3 |a 1. Glucocorticoid hormones affect several functions of the spinal cord, such as synaptic transmission, biogenic amine content, lipid metabolism, and the activity of some enzymes (ornithine decarboxylase, glycerolphosphate dehydrogenase), indicating that this tissue is a target of adrenal hormones. 2. Corticosterone, the main glucocorticoid of the rat, is detected at all regional levels of the spinal cord, and cold stress increases this steroid, predominantly in the cervical regions. 3. Intracellular glucocorticoid receptors have been found in the spinal cord, with higher concentrations in the cervical and lumbar enlargements. Prima facie, these receptors presented biochemical, stereospecifical, and physicochemical properties similar to those of receptors found in other regions of the nervous system. The prevalent form in the spinal cord is the type II receptor, although type I is also present in small amounts. 4. The type II glucocorticoid receptor of the spinal cord shows an affinity lower (Kd 3.5 n M) than that of the hippocampal type II site (Kd 0.7 n M) when incubated with [3H]dexamethasone. This condition may impair the nuclear translocation of the spinal cord receptor. 5. Another peculiar property of spinal cord type II site is a greater affinity for DNA-cellulose binding than the hippocampal receptor during heat-induced transformation. Also, the spinal cord receptor shows resistance to the action of RNAse A, an enzyme which increases DNA-cellulose binding of the hippocampal receptor, indicating that both receptors may be structurally different. 6. Therefore, it is possible that a different subclass of type II, or "classical glucocorticoid receptor," is present in the spinal cord. This possibility makes the cord a useful system for studying diversity of glucocorticoid receptors of the nervous system, especially the relationship between receptor structure and function. © 1989 Plenum Publishing Corporation.  |l eng 
593 |a Laboratorio de Bioquímica Neuroendócrina, Instituto de Biología y Medicina Experimental, Obligado 2490, Buenos Aires, 1428, Argentina 
593 |a Departamento de Bioquímica, Facultad de Medicina, Universidad de Buenos Aires, Argentina 
690 1 0 |a CENTRAL NERVOUS SYSTEM 
690 1 0 |a CORTICOSTERONE 
690 1 0 |a DEXAMETHASONE 
690 1 0 |a HIPPOCAMPUS 
690 1 0 |a RAT 
690 1 0 |a STRESS 
690 1 0 |a CORTICOSTERONE 
690 1 0 |a DEXAMETHASONE 
690 1 0 |a GLUCOCORTICOID RECEPTOR 
690 1 0 |a RADIOISOTOPE 
690 1 0 |a ANIMAL CELL 
690 1 0 |a CENTRAL NERVOUS SYSTEM 
690 1 0 |a HIPPOCAMPUS 
690 1 0 |a NONHUMAN 
690 1 0 |a RAT 
690 1 0 |a RECEPTOR BINDING 
690 1 0 |a REVIEW 
690 1 0 |a SPINAL CORD 
690 1 0 |a STRESS 
690 1 0 |a ANIMAL 
690 1 0 |a BRAIN 
690 1 0 |a CORTICOSTERONE 
690 1 0 |a DEXAMETHASONE 
690 1 0 |a GLUCOCORTICOIDS 
690 1 0 |a RATS 
690 1 0 |a RECEPTORS, GLUCOCORTICOID 
690 1 0 |a RIBONUCLEASES 
690 1 0 |a SPINAL CORD 
690 1 0 |a STRESS 
690 1 0 |a SUPPORT, NON-U.S. GOV'T 
690 1 0 |a SUPPORT, U.S. GOV'T, P.H.S. 
700 1 |a Moses, D.F. 
700 1 |a González, S. 
700 1 |a Ortí, E. 
773 0 |d Kluwer Academic Publishers-Plenum Publishers, 1989  |g v. 9  |h pp. 179-192  |k n. 2  |p Cell Mol Neurobiol  |x 02724340  |t Cellular and Molecular Neurobiology 
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