Search Results - "deFonseca, FR"

Activation of Corticotropin-Releasing Factor in the Limbic System During Cannabinoid Withdrawal by de Fonseca, Fernando Rodríguez, M. Rocío A. Carrera, Navarro, Miguel, Koob, George F., Weiss, Friedbert

“…Corticotropin-releasing factor (CRF) has been implicated in the mediation of the stress-like and negative affective consequences of withdrawal from drugs of…”
Get full text

Increase of extracellular corticotropin-releasing factor-like immunoreactivity levels in the amygdala of awake rats during restraint stress and ethanol withdrawal as measured by microdialysis by Pich, EM, Lorang, M, Yeganeh, M, Rodriguez de Fonseca, F, Raber, J, Koob, GF, Weiss, F

“…Previous research has suggested a role for corticotropin-releasing factor (CRF) in the anxiogenic effects of stressful stimuli and ethanol withdrawal. This…”
Get full text

Acute administration of the CB1 cannabinoid receptor antagonist SR 141716A induces anxiety-like responses in the rat by Navarro, Miguel, Hernández, Elena, Muñoz, Raúl M, del Arco, Ignacio, Villanúa, María Angeles, Carrera, M Rocio A, Rodríguez de Fonseca, Fernando

“…ANIMAL models have revealed that psychoactive cannabinoids induce both anxiolytic and anxiety-like reactions which are dose- and context-dependent. In the…”
Get full text

Behavioural consequences of maternal exposure to natural cannabinoids in rats by Navarro, M, Rubio, P, de Fonseca, F R

“…Cannabis sativa preparations (hashish, marijuana) are the most widely used illicit drugs during pregnancy in Western countries. The possible long-term…”
Get full text

Colocalization of glucagon-like peptide-1 (GLP-1) receptors, glucose transporter GLUT-2, and glucokinase mRNAs in rat hypothalamic cells: evidence for a role of GLP-1 receptor agonists as an inhibitory signal for food and water intake by Navarro, M, Rodriquez de Fonseca, F, Alvarez, E, Chowen, J A, Zueco, J A, Gomez, R, Eng, J, Blázquez, E

“…This study was designed to determine the possible role of brain glucagon-like peptide-1 (GLP-1) receptors in feeding behavior. In situ hybridization showed…”
Get more information

Corticotropin-releasing factor (CRF) antagonist [D-Phe12,Nle21,38,C alpha MeLeu37]CRF attenuates the acute actions of the highly potent cannabinoid receptor agonist HU-210 on defensive-withdrawal behavior in rats by Rodríguez de Fonseca, F, Rubio, P, Menzaghi, F, Merlo-Pich, E, Rivier, J, Koob, G F, Navarro, M

“…The present study evaluated the modulatory role of central corticotropin-releasing factor (CRF) systems in the mediation of the effects of acute exposure to…”
Get more information

Presence of cannabinoid binding sites in the brain from early postnatal ages by Rodríguez de Fonseca, F, Ramos, J A, Bonnin, A, Fernández-Ruiz, J J

“…The present study demonstrates the presence of cannabinoid receptors in the brain from early postnatal ages. Specific and saturable binding was observed in the…”
Get more information

Cannabinoid receptors in rat brain areas: sexual differences, fluctuations during estrous cycle and changes after gonadectomy and sex steroid replacement by Rodríguez de Fonseca, F, Cebeira, M, Ramos, J A, Martín, M, Fernández-Ruiz, J J

“…Cannabinoid effects on brain dopaminergic activity vary as a function of gonadal status. In this work, we examined whether these variations might be due to sex…”
Get more information

The dopamine receptor agonist 7-OH-DPAT modulates the acquisition and expression of morphine-induced place preference by De Fonseca, Fernando Rodríguez, Rubio, Pilar, Martín-Calderón, Jose Luis, Caine, S.Barak, Koob, George F., Navarro, Miguel

“…The present study investigated the effects of systemic administration of the putative dopamine D 3 receptor agonist 7-hydroxy- N,N-di- n-propyl-2-aminotetralin…”
Get full text

Perinatal cannabinoid exposure modifies the sociosexual approach behavior and the mesolimbic dopaminergic activity of adult male rats by Navarro, M., de Miguel, R., Rodríguez de Fonseca, F., Ramos, J.A., Fernández-Ruiz, J.J.

“…In the present work, we attempted to study whether hashish exposure during perinatal development affects sociosexual approach behavior in adult rats. To this…”
Get full text

Motor behavior and nigrostriatal dopaminergic activity in adult rats perinatally exposed to cannabinoids by Navarro, M, Rodríguez de Fonseca, F, Hernández, M L, Ramos, J A, Fernández-Ruiz, J J

“…We have recently reported several neurochemical alterations, measured at perinatal and peripubertal ages, in the maturation of nigrostriatal dopaminergic…”
Get more information

Candidate genes for substance dependence:: Evidence from expression profiling studies by Sommer, W, Arlinde, C, Rimondini, R, Hansson, AC, Hyytia, P, deFonseca, FR, Heilig, M

Get full text

Acute effects of delta-9-tetrahydrocannabinol on dopaminergic activity in several rat brain areas by Rodríguez De Fonseca, F, Fernández-Ruiz, J J, Murphy, L L, Cebeira, M, Steger, R W, Bartke, A, Ramos, J A

“…In this work, we examined the acute effects of two doses of delta-9-tetrahydrocannabinol (THC) on several pre- and postsynaptic biochemical measures of…”
Get more information

Effects of delta-9-tetrahydrocannabinol exposure on adrenal medullary function: evidence of an acute effect and development of tolerance in chronic treatments by Rodríguez de Fonseca, F, Fernández-Ruiz, J J, Murphy, L, Eldridge, J C, Steger, R W, Bartke, A

“…Previous studies have shown that the secretion of several stress-related hormones can be altered by exposure to marihuana or its purified constituents. The…”
Get more information

Modifications of striatal D2 dopaminergic postsynaptic sensitivity during development of morphine tolerance-dependence in mice by Navarro, M, Fernández-Ruiz, J J, Rodriguez de Fonseca, F, Hernández, M L, Cebeira, M, Ramos, J A

“…Alterations in the activity of striatal dopaminergic neurons have been implicated in the development of morphine tolerance-dependence in rodents. To further…”
Get more information

Early changes in the development of dopaminergic neurotransmission after maternal exposure to cannabinoids by Rodríguez de Fonseca, F, Hernández, M L, de Miguel, R, Fernández-Ruiz, J J, Ramos, J A

“…Perinatal exposure to cannabinoid derivatives has been shown to affect brain development. In this work, we studied the changes induced by maternal exposure to…”
Get more information

delta 9-Tetrahydrocannabinol affects mesolimbic dopaminergic activity in the female rat brain: interactions with estrogens by Bonnin, A, Fernández-Ruiz, J J, Martín, M, Rodríguez de Fonseca, F, Hernández, M L, Ramos, J A

“…In this work, we studied the possible estrogenic modulation of the effects of delta 9-tetrahydrocannabinol (THC) on mesolimbic dopaminergic activity, by…”
Get more information

delta 9-Tetrahydrocannabinol antagonism of the anterior pituitary response to estradiol in immature female rats by Murphy, L L, Rodriguez de Fonseca, F, Steger, R W

“…The potential estrogenicity or antiestrogenicity of delta 9-tetrahydrocannabinol (THC), the chief psychoactive constituent of marijuana, was evaluated in…”
Get more information

Lack of effect of prolactin on the dopaminergic receptor sensitivity in striatal and limbic areas after experimentally-induced alterations in its peripheral levels by Cebeira, M, Hernandez, M L, Rodriguez de Fonseca, F, de Miguel, R, Fernandez-Ruiz, J J, Ramos, J A

“…Although it had been suggested that prolactin (PRL) modulates the dopaminergic receptor sensitivity in extrahypothalamic areas, recent studies have questioned…”
Get more information