hypersensitivity/escopolamina

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Delayed hypersensitivity to scopolamine delivered by a transdermal device.

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Transdermal devices are now marketed for the delivery of systemic medications through the skin. This report confirms delayed hypersensitivity to scopolamine, the active ingredient in Transderm-Scop. Patch testing with structurally related alkaloids suggests the active antigenic site on the

Hypersensitivity to scopolamine in the elderly.

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Scopolamine hydrobromide, 0.43 mg/70 kg, was administered by subcutaneous injection to ten young and ten elderly subjects. A comprehensive neuropsychological test battery was used to assess the effects of scopolamine, as compared to placebo, on cognitive function. As previously reported for this

Delayed hypersensitivity to scopolamine in transdermal therapeutic systems.

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N-palmitoyl serotonin alleviates scopolamine-induced memory impairment via regulation of cholinergic and antioxidant systems, and expression of BDNF and p-CREB in mice.

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N-Palmitoyl-5-hydroxytryptamines (Pal-5HT), a cannabinoid, has recently been reported to express anti-allergic and anti-inflammatory actions in RBL-2H3 cells, and ameliorate glutamate-induced cytotoxicity in HT-22 cells. In this study, we examined the effect of Pal-5HT on deficits of learning and

Central anticholinergic hypersensitivity in aging.

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Although neurochemical reductions in cholinergic systems have been found to occur during aging, such changes do not necessarily translate to functional deficits. The cognitive deficits of normal aging have been attributed in part to hypocholinergic function, but anticholinergic hypersensitivity in

Lesions of the nucleus basalis magnocellularis (Meynert) induce enhanced somatosensory responses and tactile hypersensitivity in rats

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We used the immunotoxin 192 immunoglobulin G-saporin to produce a selective cholinergic lesion in the nucleus basalis of Meynert (NBM) of rats and investigated whether the NBM lesion led to tactile hypersensitivity in the forepaw. The paw mechanical threshold test showed that the lesioned rats had a

Neuronal hypersensitivity to acetylcholinesterase inhibitors induced by a kindling stimulus in the rabbit brain.

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Kindling has been studied primarily with electrical stimuli applied to subcortical structures in the limbic system. Several recent pharmacological studies have implicated muscarinic cholinergic synapses in the genesis of limbic epilepsy. The present investigation was designed to test the hypothesis

Lack of coupling of muscarinic receptors to phosphoinositide metabolism and adenylyl cyclase in human lymphocytes and polymorphonuclear leukocytes: studies in healthy subjects and allergic asthmatic patients.

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A change in muscarinic receptor-induced phosphoinositide (PI) metabolism or inhibition of adenylyl cyclase activity could play a role in cholinergic hyperresponsiveness in patients with asthma. In the present study, we considered the possibility of using peripheral blood lymphocytes or

Scopolamine-induced migraine like headache.

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OBJECTIVE Scopolamine butylbromide (SB), a muscarinic receptor antagonist, is used commonly in gastric X-ray examination in the physical check-up in Japan. This study describes clinical features of SB-induced headache. METHODS SB-induced headache was defined as headache that started within 20

Transdermal scopolamine for prevention of motion sickness : clinical pharmacokinetics and therapeutic applications.

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A transdermal therapeutic system for scopolamine (TTS-S) was developed to counter the adverse effects and short duration of action that has restricted the usefulness of scopolamine when administered orally or parenterally. The plaster contains a reservoir of 1.5 mg of scopolamine programmed to

Scopolamine detoxification technique for heroin dependence: a randomized trial.

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BACKGROUND Easing psychological symptoms associated with heroin use and heroin relapse are important goals in the treatment of heroin dependence. However, most detoxification methods are designed to decrease withdrawal-related discomfort and complications, but not to reduce the psychological effects

The effect of antimuscarinic agents on haloperidol induced behavioral hypersensitivity.

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Varying doses of scopolamine, trihexyphenidyl and benztropine were administered to rats or guinea-pigs by themselves or in combination with 0.5 mg/kg haloperidol for 24 days. All animals were then challenged with 0.75 mg/kg apomorphine and assessed for stereotypic behavior following a 96 h drug free

Dopaminergic alterations in cotreatments attenuating haloperidol-induced hypersensitivity.

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Chronic treatment of the laboratory rat with haloperidol results in an increased stereotypic behavioral response to subsequent dopamine agonist challenge. This behavioral hypersensitivity (BH) is thought to reflect an increase in DA receptor number following chronic pharmacologic denervation. Using

Serendipity strikes again: scopolamine as an antidepressant agent in bipolar depressed patients.

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The adrenergic-cholinergic balance hypothesis of mania and depression suggests that depression may be due to an over-activity or a hypersensitivity to central acetylcholine. From this hypothesis, it is logical that scopolamine, a centrally acting antimuscarinic agent, would be useful as an

[Cholinergic modulation on stereotyped behavior and behavioral hypersensitivity (reverse tolerance) in rats].

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The failure in the mutual balance between striatal/mesolimbic dopaminergic neurons and the inhibitory system, and a decreased activity of mesocortical dopaminergic neurons may account for biological base of paranoid schizophrenia. We tested this hypothesis by investigating stereotyped behavior and

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