Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0040822 (tremor)
 18,428 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In the literature the prevalent until now opinion was that writer's cramp was a disturbance of psychic origin or an occupational neurosis. However, the authors treated successfully three cases of this syndrome with thalamotomy in the years 1976-1982. Two cases were in subject with right-handedness who had graphospasm with evidence of increasing difficulty in writing until complete impossibility of further writing, after several years postural and intentional tremor appeared, and dystonic symptoms developed in the right foot. The third cases had a history of 16 years of writer's cramp and after years symptoms of right-sided dystonia with involuntary movements of the right upper extremity and continuous tics and spams of the facial muscles. After thalamotomy in all cases writer's cramp, tremors and involuntary movements disappeared, writing became again possible and the efficiency of right extremities returned. The described cases of writer's clamp were focal forms of dystonia which became generalized after years. The indications to stereotaxic treatment in these syndromes should be established much earlier.
Neurol Neurochir Pol
PMID:[Writer's cramp syndrome treated successfully by thalamotomy]. 329 74

1-Pyridyl-3,4-dihydro-beta-carbolines (2a-2f) were synthesized by two methods. The central action of these compounds was investigated in mice and rats using behavioral tests. The most active 6-methoxy-1-(3-pyridyl)-3,4-dihydro-beta-carboline (2e) possesses potential antidepressant properties, as it reversed the effects of reserpine (sedation, hypothermia and ptosis), potentiated the stimulation induced by levodopa given jointly with pargyline, and reduced the immobility time in the despair test. Moreover, compound 2e inhibited the spontaneous locomotor activity, evoked tremor and produced an analgesic effect.
Pol J Pharmacol Pharm
PMID:1-Pyridyl-3,4-dihydro-beta-carbolines: synthesis and central action. 349 88

Somatosensory evoked potentials (SEP) were recorded in 15 patients with extrapyramidal disturbances after intravenous administration of 10 mg of diazepam (Relanium, Polfa). Cortical SEP were recorded before and after operations and thalamic SEP were recorded during stereotaxic interventions on thalamic nuclei VL and Vim. The results demonstrated that diazepam had a significant positive influence on the recording of SEP, eliminating muscular artifacts caused by increased muscular tonus and extrapyramidal tremor. Diazepam had no evident effect on the SEP and caused no changes of the short-latency specific cortical SEP. This effect was, however, evident on the later components of the SEP and it seemed to affect mainly the N63 wave whose amplitude was always reduced or absent. In the postoperative investigations the cortical SEP in the hemisphere operated on (contralateral to the site of stimulation) were reduced in the phase of short-latency components. In the ipsilateral hemisphere the cortical SEP remained similar to the normal ones, and after diazepam their amplitude was markedly reduced. Intraoperatively recorded thalamic SEP showed after diazepam a considerable decrease of the amplitude of all components, sometimes the curve was completely flat, including the specific phase of the potential. On the other hand, diazepam failed to extinguish cortical SEP which showed even a greater amplitude of short-latency and long-latency components than in the records obtained without this drug, with the exception of disappearing N63 component.
Neurol Neurochir Pol
PMID:[Effect of diazepam on somatosensory evoked potentials]. 360 Sep 76

In the experiments carried out on Wistar rats it was demonstrated that histamine administered intraventricularly had no effect on the number of wet-dog-shaking episodes induced with lithium chloride. Thenalidine and antazoline, antagonists of the H1 receptor, and cimetidine and ranitidine, antagonists of the H2 receptor reduced the number of shaking episodes proportionally to the dose. These results may suggest that the reduction of the number of shaking episodes induced with lithium chloride was connected with blockade of histamine receptors, although an indirect effect of H1 and H2-receptor antagonists on the serotoninergic and cholinergic systems cannot be ruled out.
Acta Physiol Pol
PMID:Effects of histamine and H1 and H2-receptor antagonists on the wet-dog-shaking episodes in rats induced with lithium chloride. 610 Mar 51

Comprehensive treatment, including pharmacotherapy, rehabilitation, psychotherapy and ultrasound stimulation of the lymphatic system by the method of Seltzer is given to multiple sclerosis patients at the hospital department for these patients. In the first year of treatment three courses of ultrasound sessions are given with 24 sessions in each course, in the second year two such courses are given, and in the following years one course is given yearly. The present material comprised 45 patients after 7 or 8 courses of treatment in the hospital. The neurological status of each patient was evaluated before the first course and after the last one using a score scale containing the most important clinical parameters. Is was found that these therapeutic methods had only a negligible effect on paresis of the extremities, but it seems that they influenced favourably eye signs, particularly nystagmus, and cerebellar tremor. The greatest improvement was obtained in sphincter disturbances, especially in pollakiuria and urinary incontinence. The effect of ultrasound alone on the obtained results could not have been assessed. Investigations would be necessary for this purpose which are not done in this hospital.
Neurol Neurochir Pol
PMID:[Complex treatment of patients with multiple sclerosis]. 664 25

Pirenzepine, (5,11-dihydro-11-[(4-methylpiperazin-1-yl)-acetyl]-6H-pyrido-[2,3] [1,4]-benzodiazepin-6-one dihydrochloride), tested on rats and mice, did not demonstrate any conspicuous behavioral action: it did not counteract reserpine hypothermia in mice, the L-DOPA hypermotility of mice, and (with the exception of very large doses) the amphetamine hypermotility in mice and rats. The drug neither prolonged the time of immobility of rats in the behavioral despair test, nor affected the central serotonin system in rats in tests for 5-hydroxytryptophan-induced head twitches, tryptamine-induced convulsions and fenfluramine-induced hyperthermia at high ambient temperature. Pirenzepine did not affect either the hind limb flexor reflex in the spinal rat, nor the action of serotoninomimetics of it. The investigated compound had strong peripheral cholinolytic action as it inhibited salivation and lacrimation in the oxotremorine test. The oxotremorine tremor was weakened only by very high doses of pirenzepine. LD50 of the drug in mice was 412 mg/kg ip.
Pol J Pharmacol Pharm 1981
PMID:Central action of pirenzepine. 689 18

The per cent and absolute numbers of lymphocytes T and B were calculated in 37 patients with hereditary diseases of the nervous system (torsion dystonia, hepatolenticular degeneration, idiopathic tremor) and in 22 donors. Reactions of active and full spontaneous complement-induced formation of rosettes and B cell detection with surface immunoglobulin receptors were used for this purpose. In all hereditary diseases a reduction was found in the number of lymphocytes and a rise in the ability of the lymphocytes for complement-induced rosette formation. The obtained data should be evaluated, probably, as a secondary immunodeficiency state determined probably by metabolic disturbances playing an important role in the pathogenesis of hereditary nervous system diseases.
Neurol Neurochir Pol
PMID:[T and B immune systems in hereditary extrapyramidal disorders]. 697

Pretreatment with apomorphine, increased and prolonged the arecoline-induced tremor in rats. When given before pilocarpine, it produced different effects dependent on the dose: low doses (0.05 and 1.0 mg/kg) antagonized, but higher doses (5.0 and 10.0 mg/kg) enhanced the pilocarpine tremor. The extent and duration of arecoline tremor after pretreatment L-DOPA increased significantly, but this was not observed in the pilocarpine-induced tremor. These results suggest that the relations between striatal dopaminergic and cholinergic systems may be complex and the model based on a simple antagonism between these systems may be oversimplified.
Acta Physiol Pol
PMID:Modification of cholinergic tremor by apomorphine and L-dopa in rats. 724 99

The interrelationships were studied between catecholaminergic and cholinergic systems in 169 patients with extrapyramidal system diseases: 68 patients with torsion dystonia (58 with the rigid form and 10 with the hyperkinetic form), 10 with Hallervorden-Spatz disease, 61 with hepatolenticular degeneration, and in 40 with idiopathic tremor. The secretion of dopamine (DA), noradrenaline (NA), adrenaline (A) and their precursor--DOPA) as well as the activity of acetylcholinesterase (AChe)--the enzyme disintegrating acetylcholine--were determined. In the rigid form of torsion dystonia and in Hallervorden-Spatz disease reduced secretion of all catecholamines (mainly DA) and DOPA was observed, with decreased AChE activity. In the hyperkinetic form of torsion dystonia the secretion of DA was increased and AChE activity was higher. In the patients with idiopathic tremor the secretion of A and NA was decreased and AChE activity was reduced. In patients with hepatolenticular degeneration the secretion of NA and DA was decreased and that of their immediate precursor DOPA was increased. Changes of AChE activity showed a wide range. The observed disturbances reflect various forms of disturbances in the equilibrium between the catecholaminergic and cholinergic systems which are one of the leading pathogenetic mechanisms in the development of various extrapyramidal syndromes.
Neurol Neurochir Pol
PMID:[Characteristics of central neurotransmitter metabolism in hereditary extrapyramidal disorders]. 732 5

The authors report the results of treatment of hereditary extrapyramidal diseases with new preparations acting upon neurotransmitter systems. Patients with torsion dystonia, Huntington's chorea, Parkinson's disease, hereditary tremor, myoclonic epilepsy were followed-up for several years.. The best results in akinetic-rigidity syndromes (Parkinson's disease, rigid froms of torsion dystonia, Hallevorden-Spatz disease) were obtained with L-DOPA (including Sinemet, Nacom, Madopar) and in many patients these preparations were given in combination with other drugs (cholinolytic agents, Midantan) which contributed to compensation of the disturbed equilibrium of neurotransmitter systems and reduction of side effects. For decreasing the side effects of L-DOPA (hyperkineses of dystonic type, chorea and myoclonia) preparations from the group of phenothiazine and diazepine were given. In many cases improvement was achieved by slover increase of L-DOPA doses. In the hyperkinetic syndromes (Huntington's chorea, idiopathic tremor, myoclonic epilepsy, hyperkinetic torsion dystonia) preparations of phenothiazine, butyrophenone and new drugs active on the GABAergic system (Baclophen, Lyoresal, Pantogam) and diazepine (Clonazepam) were used. The analysis of the results shows that disturbed equilibrium of central neurotransmitters plays and important role in the pathogenesis of hereditary extrapyramidal system diseases.
Neurol Neurochir Pol
PMID:[Pathogenetic treatment of various hereditary extrapyramidal disorders with new drugs]. 732 7


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