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Showing 13 to 24 of 42 entries
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5-HT 1D receptors mediate SKF 99101H-induced hypothermia in the guinea pig.

Journal of psychopharmacology (Oxford, England)

Hatcher JP, Slade PD, Roberts C, Hagan JJ.
PMID: 22297763
J Psychopharmacol. 1995 Jan;9(3):234-41. doi: 10.1177/026988119500900306.

The selective, brain penetrant, 5-HT(1D) receptor agonist SKF 99101H (10-30 mg/kg i.p.) caused a dose-related fall in rectal temperature in guinea pigs which lasted longer than 2 h. Sumatriptan (1.0-100 mg/kg i.p.), a selective 5-HT(1D) agonist which does not...

Methylphenidate improves prefrontal cortical cognitive function through alpha2 adrenoceptor and dopamine D1 receptor actions: Relevance to therapeutic effects in Attention Deficit Hyperactivity Disorder.

Behavioral and brain functions : BBF

Arnsten AF, Dudley AG.
PMID: 15916700
Behav Brain Funct. 2005 Apr 22;1(1):2. doi: 10.1186/1744-9081-1-2.

BACKGROUND: Methylphenidate (MPH) is the classic treatment for Attention Deficit Hyperactivity Disorder (ADHD), yet the mechanisms underlying its therapeutic actions remain unclear. Recent studies have identified an oral, MPH dose regimen which when given to rats produces drug plasma...

Dose-dependent discriminative stimulus properties of 8-OH-DPAT.

Behavioural pharmacology

Ybema CE, Slangen JL, Olivier B, Mos J.
PMID: 11224230
Behav Pharmacol. 1993 Dec;4(6):610-624.

Separate groups of rats were trained to discriminate either 0.1mg/kg (low dose; L) or 2.5mg/kg (high dose; H) of 8-OH-DPAT from saline, in a standard operant task. Both cues were found to be dose, time and route dependent and...

Electrophysiologic characterization of the antinociceptive actions of S18616, a novel and potent alpha 2-adrenoceptor agonist, after acute and persistent pain states.

The journal of pain

Suzuki R, Green GM, Millan MJ, Dickenson AH.
PMID: 14622778
J Pain. 2002 Jun;3(3):234-43. doi: 10.1054/jpai.2002.123651.

alpha (2)-Adrenoceptor (AR) agonists are active in behavioral models of persistent pain involving tissue and nerve damage. We evaluated the spinal effect of a novel, potent, and selective alpha (2)-AR agonist, [7,8](2-chlorobenzo)-2-amino-1-aza-3-oxa[4,5]spirodeca-1,7-diene (S18616), on the responses of dorsal horn...

Prenatal IV Cocaine: Alterations in Auditory Information Processing.

Frontiers in psychiatry

Mactutus CF, Harrod SB, Hord LL, Moran LM, Booze RM.
PMID: 21747770
Front Psychiatry. 2011 Jun 28;2:38. doi: 10.3389/fpsyt.2011.00038. eCollection 2011.

One clue regarding the basis of cocaine-induced deficits in attentional processing is provided by the clinical findings of changes in the infants' startle response; observations buttressed by neurophysiological evidence of alterations in brainstem transmission time. Using the IV route...

Effects of Manipulation of Noradrenergic Activities on the Expression of Dopaminergic Phenotypes in Aged Rat Brains.

ASN neuro

Zeng F, Fan Y, Brown RW, Drew Gill W, Price JB, Jones TC, Zhu MY.
PMID: 34812056
ASN Neuro. 2021 Jan-Dec;13:17590914211055064. doi: 10.1177/17590914211055064.

This study investigated the effects of the pharmacological manipulation of noradrenergic activities on dopaminergic phenotypes in aged rats. Results showed that the administration of L-threo-3,4-dihydroxyphenylserine (L-DOPS) for 21 days significantly increased the expression of tyrosine hydroxylase (TH) and dopamine...

Effects of imidazoline agents in a rat conditioned place preference model of addiction.

Naunyn-Schmiedeberg's archives of pharmacology

Şorodoc V, Rusu-Zota G, Nechita P, Moraru C, Manole OM.
PMID: 34997272
Naunyn Schmiedebergs Arch Pharmacol. 2022 Jan 08; doi: 10.1007/s00210-021-02194-z. Epub 2022 Jan 08.

Agmatine (AG), idazoxan (IDZ), and efaroxan (EFR) are imidazoline receptor ligands with beneficial effects in central nervous system disorders. The present study aimed to evaluate the interaction between AG, IDZ, and EFR with an opiate, tramadol (TR), in a...

The Impact of α-Adrenoceptors in the Regulation of the Hypotonicity-Induced Increase in Duodenal Mucosal Permeability In Vivo.

Pharmaceutics

Sedin J, Dahlgren D, Sjöblom M, Nylander O.
PMID: 34959377
Pharmaceutics. 2021 Dec 06;13(12). doi: 10.3390/pharmaceutics13122096.

The duodenal mucosa is regularly exposed to a low osmolality, and recent experiments suggest that hypotonicity increases mucosal permeability in an osmolality-dependent manner. The aim was to examine whether the sympathetic nervous system, via action on α-adrenoceptors, affects the...

Different effects of yohimbine and idazoxan in the light-dark choice procedure.

Behavioural pharmacology

Chapouthier G, Jacquot F, Save E, Venault P, Sara S.
PMID: 11175431
Behav Pharmacol. 1990;1(5):459-461.

In a light-dark choice situation, the alpha(2) adrenoceptor antagonists yohimbine and idazoxan had different effects: idazoxan decreased time spent in the fit box, but yohimbine did not. The effects of idazoxan were not blocked by the alpha(2) adrenoceptor agonist...

Modification of naloxone-precipitated withdrawal symptoms in mice by drugs acting on alpha(2)-adrenoceptors.

Behavioural pharmacology

Sharif SI, El-Kadi AO.
PMID: 11224426
Behav Pharmacol. 1996 Aug;7(4):334-340. doi: 10.1097/00008877-199608000-00004.

Modification of naloxone-precipitated withdrawal symptoms by drugs acting on alpha-adrenoceptors was investigated in morphine-dependent mice. Clonidine (0.05-1mg/kg) attenuated most withdrawal symptoms, but potentiated withdrawal hypothermia. Jumping was attenuated by doses of clonidine up to 0.3mg/kg, but markedly potentiated by...

Effects of Manipulation of Noradrenergic Activities on the Expression of Dopaminergic Phenotypes in Aged Rat Brains.

ASN neuro

Zeng F, Fan Y, Brown RW, Drew Gill W, Price JB, Jones TC, Zhu MY.
PMID: 34812056
ASN Neuro. 2021 Jan-Dec;13:17590914211055064. doi: 10.1177/17590914211055064.

This study investigated the effects of the pharmacological manipulation of noradrenergic activities on dopaminergic phenotypes in aged rats. Results showed that the administration of L-threo-3,4-dihydroxyphenylserine (L-DOPS) for 21 days significantly increased the expression of tyrosine hydroxylase (TH) and dopamine...

Neuroprotective effects of receptor imidazoline 2 and its endogenous ligand agmatine.

Neuroscience bulletin

Qiu WW, Zheng RY.
PMID: 17704848
Neurosci Bull. 2006 May;22(3):187-91.

Receptor imidazoline 2 (I₂) is one of the imidazoline receptors with high affinity for [³H]-idazoxan. Receptor I₂, being classified into I(₂A) and I(₂B) subtypes, is mainly localized to the outer membrane of mitochondria in liver, kidney and brain. Receptor...

Showing 13 to 24 of 42 entries