Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The responsibility of the folate deficiency in some neuropsychiatric disorders is recent knowledge. The role of the folate on the nervous system is not yet well definite, but the action on the metabolism of the amino-acids, on the purine and the pyrimidine synthesis and on the metabolism of the catecholamins are certainly essential. The neuropsychiatric diseases secondary to the folate deficiency are numerous: dementia, schizophrenia like syndromes, insomnia, irritability, forgetfulness, endogenous depression, organic psychosis, pueperal psychosis, peripheral neuropathy, myelopathy (spinal cord syndrome and/or pyramidal tract damage), restless legs syndrome. Clinically the diagnosis may be difficult with sub acute combined degenration secondary to the pernicious anaemia, and the dosage of the folate (in serum, in red-cells and in cerebrospinal fluid) is necessary. The congenital defects in the uptake or utilization of the folate are associated with neuropsychiatric disturbances. The treatment is easy and safe if the vitamin B12 deficiency is eliminated and if employed with caution in epileptic patients because folate can induced seizures.
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PMID:[Folate and the nervous system (author's transl)]. 22 16

Alcohol withdrawal syndromes in humans lie on a continuum of increasing severity, from the acute hangover to delirium tremens. Early mild reactions consist primarily of hyperexcitability phenomena such as tremor, insomnia, hyperreflexia and hyperventilation. In more severe degree, the same process gives rise to hallucinations and seizures. These early reactions are mimicked closely by alcohol withdrawal signs in experimental animals. Late reactions in humans are characterized by marked sympathetic nervous system overactivity, profound disorientation and hallucinations. Analogous reactions have not yet been observed clearly in other species. The problem may be one of finding appropriate techniques for detecting such changes, rather than a true species difference in their occurrence.
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PMID:Alcohol withdrawal syndromes in the human: comparison with animal models. 33 82

Enhanced voluntary motor inhibition regularly accompanies conditioned increases in the sensorimotor rhythm (SMR), a 12--14-Hz Rolandic EEG rhythm in cats.A similar rhythm, presumably SMR, has also been identified in the human EEG. The clinical effectiveness of SMR operant conditioning has been claimed for epilepsy, insomnia, and hyperkinesis concurrent with seizure disorders. The present report attempts to follow up and replicate preliminary findings that suggested the technique's successful application to hyperkinesis uncomplicated by a history of epilepsy. SMR was defined as 12--14-Hz EEG activity in the absence of high-voltage slow-wave activity between 4 and 7 Hz. Anticipated treatment effects were indexed by systematic behavioral assessments of undirected motor activity and short attention span in the classroom. EEG and behavioral indices were monitored in four hyperkinetic children under the following six conditions: (1) No Drug, (2) Drug Only, (3) Drug and SMR Training I, (4) Drug and SMR Reversal Training, (5) Drug and SMR Training II, (6) No Drug and SMR Training. All hyperkinetic subjects were maintained on a constant drug regimen throughout the phases employing chemotherapy. Contingent increases and decreases in SMR occurred in three of four training subjects and were associated with similar changes in classroom assessments of motor inactivity. Combining medication and SMR training resulted in substantial improvements that exceeded the effects of drugs alone and were sustained with SMR training after medication was withdrawn. In contrast, these physiological and behavioral changes were absent in one highly distractible subject who failed to acquire the SMR task. Finally, pretraining levels of SMR accurately reflected both the seve-ity of original motor deficits and the susceptibility of hyperkinetic subjects to both treatments. Although the procedure clearly reduced hyperkinetic behavior, a salient, specific therapeutic factor could not be identified due to the dual EEG contingency imposed combined with associated changes in EMG. Despite these and other qualifying factors, the findings suggested the prognostic and diagnostic value of the SMR in the disorder when overactivity rather than distractibility is the predominant behavioral deficit.
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PMID:Operant conditioning of EEG rhythms and ritalin in the treatment of hyperkinesis. 52 75

The postconcussion syndrome refers to a large number of symptoms and signs that may occur alone or in combination following usually mild head injury. The most common complaints are headaches, dizziness, fatigue, irritability, anxiety, insomnia, loss of consciousness and memory, and noise sensitivity. Mild head injury is a major public health concern because the annual incidence is about 150 per 100,000 population, accounting for 75% or more of all head injuries. The postconcussion syndrome has been recognized for at least the last few hundred years and has been the subject of intense controversy for more than 100 years. The Hollywood head injury myth has been an important contributor to persisting skepticism and might be countered by educational efforts and counter-examples from boxing. The organicity of the postconcussion syndrome has now become well documented. Abnormalities following mild head injury have been reported in neuropathologic, neurophysiologic, neuroimaging, and neuropsychologic studies. There are multiple sequelae of mild head injury, including headaches of multiple types, cranial nerve symptoms and signs, psychologic and somatic complaints, and cognitive impairment. Rare sequelae include hematomas, seizures, transient global amnesia, tremor, and dystonia. Neuroimaging and physiologic and psychologic testing should be used judiciously based on the problems of the particular patient rather than in a cookbook fashion. Prognostic studies clearly substantiate the existence of a postconcussion syndrome. Manifestations of the postconcussion syndrome are common, with resolution in most patients by 3 to 6 months after the injury. Persistent symptoms and cognitive deficits are present in a distinct minority of patients for additional months or years. Risk factors for persisting sequelae include age over 40 years; lower educational, intellectual, and socioeconomic level; female gender; alcohol abuse; prior head injury; and multiple trauma. Although a small minority are malingerers, frauds, or have compensation neurosis, most patients have genuine complaints. Contrary to a popular perception, most patients with litigation or compensation claims are not cured by a verdict. Treatment is individualized depending on the specific complaints of the patient. Although a variety of medication and psychologic treatments are currently available, ongoing basic and clinical research of all aspects of mild head injury are crucial to provide more efficacious treatment in the future.
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PMID:The postconcussion syndrome and the sequelae of mild head injury. 143 59

Narcolepsy is clinically associated with cataplexy, sleep paralysis and hypnagogic hallucinations. It is treated by reassurance (that there is no physical disease) and by stimulants such as ephedrine and amphetamine on an intermittent basis. The special tricyclic antidepressant clomipramine is also used, and mono-amine oxidase inhibitors (MAOIs) are useful in theory. Obstructive sleep apnoea is an important and often unrecognised cause of daytime somnolence. It is treated by weight reduction (pickwickian syndrome), hormones, or recently, with continuous positive pressure apparatus. Night terrors (pavor nocturnus) and sleepwalking typically occur during deep sleep (stage 3 and 4 throughout the episode) in children. In a night terror the child sits up with a scream, with eyes open, but inaccessible. He eventually falls asleep calmly. Sleepwalking, too, shows the features of inaccessibility and subsequent amnesia for the episode. Both conditions are normally treated with reassurance (to the parents) but may occasionally warrant benzodiazepines. Enuresis usually occurs in non-rapid eye movement (NREM) sleep, especially stages 3 and 4. The reason for the efficacy of tricyclic antidepressants is not precisely known. Delirium tremens (DT) is treated as a rebound excess of REM sleep, with benzodiazepines and other drugs. It is the withdrawal syndrome (with or without major seizures) to the barbiturate-alcohol group of drugs, which includes alcohol, chloral, paraldehyde, glutethimide, methylprylone, ethchlorvynol, meprobamate and meprobamate-diphenhydramine. Insomnia may be treated by the above drugs, by analgesics, antidepressants, major tranquillisers (neuroleptics) and miscellaneous other compounds. For the majority of patients, however, the most suitable group seems to be the benzodiazepines. The benzodiazepines are much safer than their predecessors, in both acute and chronic usage.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:The treatment of sleep disorders. 158 14

Citalopram is an antidepressant belonging to a new class of drugs which enhance serotoninergic neurotransmission through potent and selective inhibition of serotonin reuptake. Preliminary trials suggest that its short term therapeutic efficacy is significantly greater than that of placebo and mianserin, and comparable to that of amitriptyline, maprotiline and imipramine. It appears to be a weaker antidepressant agent than clomipramine, but better tolerated. Its elimination half-life of 33 hours permits once daily oral administration. Symptomatic improvement obtained with short term treatment has been maintained when therapy has been extended for up to 1 year; in the few patients studied for this extended period, the relapse rate was lower than with fluvoxamine, fluoxetine or imipramine. Compared to standard antidepressant agents, citalopram is well tolerated. It does not appear to be cardiotoxic, has not been associated with seizures in humans, and is relatively nonsedating. Unlike the tricyclic antidepressants, citalopram has minimal anticholinergic effects. Mild and transient nausea, with or without vomiting, is the most frequent adverse effect--occurring in 20% of patients--and increased perspiration, headache, dry mouth, tremor and insomnia are experienced by 15 to 18% of patients. Citalopram thus offers similar therapeutic efficacy and a more favourable tolerability profile than the tricyclic antidepressants. Preliminary data suggest that it may be particularly useful in patients who cannot tolerate the anticholinergic or cardiovascular side effects of tricyclic antidepressants and in those for whom sedation is not indicated.
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PMID:Citalopram. A review of its pharmacodynamic and pharmacokinetic properties, and therapeutic potential in depressive illness. 171 47

Sleep disorders are common in our society. It is estimated that there are 50 million people in the United States who suffer to varying degrees from sleep problems. A great deal has been learned about sleep during the past 40 years. Much of this knowledge has been obtained by the use of PSG, which consists of the simultaneous recording of several physiologic parameters from a patient just prior to and during sleep. Much of the technology utilized in PSG are based on individual tests developed many years ago. Current published data permit the conclusion that PSG is useful for the diagnostic evaluation of patients with sleep-related breathing disorders, may be helpful in the evaluation of suspected cases of narcolepsy wherein other findings are inconclusive or contradictory, and may be helpful in cases of parasomnias and/or suspected epilepsy wherein the distinction between seizure activity and other forms of sleep disturbance is uncertain. Current data do not permit a firm conclusion as to the clinical effectiveness of PSG in other symptoms of sleep disturbance such as insomnia. Current, ongoing clinical trials are expected to provide information addressing this point, and several agencies (NINDS, ADAMHA, and NIA) have expressed their intent to encourage the organization of prospective trials to determine the ultimate clinical utility of SDC and PSG techniques. A physician need not be present during PSG in an SDC.
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PMID:Polysomnography and sleep disorder centers. 182 78

The side-effect profile of quinolone antibiotics in man includes CNS disturbances such as dizziness, insomnia and convulsions. Although it has been suggested that the proconvulsive liability of quinolones involves an interaction with GABA receptors in the central nervous system, no animal model has been described to evaluate or confirm the mechanism of this effect. The proconvulsive activity of the quinolone antibiotics, nalidixic (NAL) and oxolinic (OXO) acid were tested in male mice following oral doses of 10-100 mg/kg utilizing the convulsive stimuli pentylenetetrazole (PTZ), picrotoxin, strychnine or electroshock. While NAL and OXO did not alter the threshold for convulsions induced by PTZ, strychnine or picrotoxin, both agents lowered the threshold for electroshock-induced seizures. Furthermore, the proconvulsive actions of NAL and OXO were completely blocked by the excitatory amino acid receptor antagonists, MK-801 and 2-amino-4-phosphonobutyric acid (AP-4). These data indicate that the mechanism of convulsive liability of quinolone antibiotics does not involve GABA receptor interactions as previously thought, but appears to involve activation of excitatory amino acid (EAA) receptors, possibly located in the optic region of the central nervous system.
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PMID:The proconvulsive activity of quinolone antibiotics in an animal model. 189 4

Clonazepam is a potent, long-acting benzodiazepine approved for use in myoclonic and petit mal seizures. Initial reports have demonstrated encouraging results with clonazepam in the treatment of acute mania as well as a favorable side-effect profile. A trial of adjunctive clonazepam was initiated in a 41-year-old patient with chronic schizophrenia. Two weeks later, while on an 8-mg dosage, he became manic, developing pressured speech, euphoria, inflated esteem, agitation, and insomnia. Initiation of electroconvulsive therapy with gradual tapering and discontinuation of the clonazepam resulted in amelioration of the manic episode and a return to his previous clinical status. Clinicians should be alerted to the potential of clonazepam to cause manic-like behavior in susceptible patients.
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PMID:Mania associated with clonazepam. 194 70

Carisoprodol (Somadril) was gradually withdrawn for a fortnight in nine male prisoners who had been taking daily doses of from 700 to 2,100 mg for at least nine months. The patients were assessed clinically during the withdrawal period, with special attention to the occurrence of abstinence symptoms. Most of the patients reported mental distress, such as anxiety, insomnia and irritability. Cranial and muscular pain and vegetative symptoms were also frequently reported. Most of these symptoms were transient, and no seizures or psychotic reactions occurred. Our information from drug addicts indicates that carisoprodol can be misused as a narcotic. The occurrence of abstinence symptoms during withdrawal supports this supposition. We propose a more gradual reduction of the doses when terminating medication with carisoprodol in general practice.
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PMID:[Dependence on carisoprodol (Somadril)? A prospective withdrawal study among prisoners]. 199 78


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