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Progesterone brain receptors

Steroid Hormones and Neurosteroids. Steroids (qv) can affect neuroendocrine function, stress responses, and behavioral sexual dimorphism (78,79) (see Steroids). Mineralocorticoid, glucocorticoid, androgen, estrogen, and progesterone receptors are localized in the brain and spinal cord. In addition to genomic actions, the neurosteroid can act more acutely to modulate the actions of other receptors or ion channels (80). Pregnenolone [145-13-17, ( ) dehydroepiandosterone [53-43-0] C H2 02 (319) are excitatory neurosteroids found in rat brain, independent of adrenal... [Pg.574]

Intracellular steroid receptors, which alter gene expression, exist for corticosteroids, oestrogens and progesterone in the brain, as in the periphery but they cannot account for the relatively rapid depression of CNS function induced by some steroids. This was explained when Harrison and Simmonds (1984) discovered that alphaxalone (the steroid anaesthetic) potentiated the duration of GABA-induced currents at the GABAa receptor in slices of rat cuneate nucleus just like the barbiturates (Fig. 13.6). Of the... [Pg.275]

Like steroid hormones, thyroid hormones interact with receptors to alter genomic activity and affect the synthesis of specific proteins during development [25-28], As with testosterone and progesterone, metabolic transformation of thyroxine (T4) is critical to its action [25-28]. Moreover, as with steroid hormones, thyroid hormones alter brain functions in adult life in ways that both resemble and differ from their action during development [25-28]. [Pg.853]

Dluzen DE, Anderson LI (1997) Estrogen differentially modulates nicotine-evoked dopamine release from the striatum of male and female rats. Neurosci Lett 230(2) 140-142 Dluzen DE, Ramirez VD (1990) In vitro progesterone modulation of amphetamine-stimulated dopamine release from the corpus striatum of ovariectomized estrogen-treated female rats response characteristics. Brain Res 517(1-2) 117-122 Donny EC, Caggiula AR, et al (2000) Nicotine self-administration in rats estrous cycle effects, sex differences and nicotinic receptor binding. Psychopharmacology 151(4) 392-405... [Pg.285]

Rose JE, Levin ED (1991) Inter-relationships between conditioned and primary reinforcement in the maintenance of cigarette smoking. Br J Addict 86(5) 605-609 Rosecrans JA (1971) Elfects of nicotine on brain area 5-hydroxytryptamine function in male and female rats separated for differences of activity. Eur J Pharmacol 16(1) 123-127 Rosecrans JA (1972) Brain area nicotine levels in male and female rats with different levels of spontaneous activity. Neuropharmacology ll(6) 863-870 Rosecrans JA, Schechter MD (1972) Brain area nicotine levels in male and female rats of two strains. Arch Int Pharmacodyn Ther 196(l) 46-54 Saigusa T, Takada K, et al (1997) Dopamine efflux in the rat nucleus accumbens evoked by dopamine receptor stimulation in the entorhinal cortex is modulated by oestradiol and progesterone. Synapse 25(1) 37 3... [Pg.290]

Numan, M., Roach, J.K., del Cerro, M.C., Guillamon, A., Segovia, S, Sheehan, T.P., and Numan, M.J. (1999) Expression of intracellular progesterone receptors in rat brain during different reproductive states, and involvement in maternal behavior. Brain Res 830 358-371. [Pg.208]

Bitran D, Hilvers RJ, Kellogg CK Anxiolytic effects of 3a-hydroxy-5a-pregnan-20-one, endogenous metabolite of progesterone that are active at the GABA receptor. Brain Res 561 157-161, 1991... [Pg.598]

Frisoni GB, De Leo D, Rozzini R, et al Psychic correlates of sleep symptoms in the elderly. Int J Geriatr Psychiatry 7 891-898, 1992 Fritschy J, Benke D, Mertens S, et al 5 types of type A GABA receptors identified in neurons by double and triple immunofluorescence staining with subunit specific antibodies. Proc Natl Acad Sci USA 89 6726-6730, 1992 Frye CA, Duncan JE Progesterone metabolites effective at the GABAa receptor complex attenuate pain sensitivity in rats. Brain Res 643 194-203, 1994 Erye CA, Cuevas CA, Crystal S, et al Diet and estrous cycle influence pain sensitivity in rats. Pharmacol Biochem Behav 45 255-260, 1993 Erye PE, Arnold LE Persistent amphetamine-induced compulsive rituals response to pyridoxine (B6). Biol Psychiatry 16 583-587, 1981... [Pg.639]

Ren K, Wei F, Dubner R, Murphy A, Hoffman GE (2000) Progesterone attenuates persistent inflammatory hyperalgesia in female rats involvement of spinal NMDA receptor mechanisms. Brain Res 865 272-277... [Pg.520]

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