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Query: UMLS:C0036341 (schizophrenia)
 60,220 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a study to identify and define a central group of long-stay psychiatric patients who are resistant to discharge 422 were found who had been in hospital for eight to 23 years. These "problem" patients represented 40% of all long-stay patients. The total number of years that they had spent in hospital was nearly double that of the remaining patients. They were mostly unvisited, unoccupied, and single, and most were suffering from schizophrenia or organic psychosis. Half were in a good or reasonably good state of mental health, and three-quarters were in a good or reasonably good state of physical health. The findings have implications for the rehabilitation and treatment of these patients and also for the provision of community aftercare facilities.
Br Med J 1975 Dec 20
PMID:Identification and definition of long-stay mental hospital population. 81 85

Schizophrenia and its variations, the different concepts and criteria for the diagnosis of schizophrenia and the possibilities of "prognostic diagnosis" at the beginning of the disease are discussed. There is only a differential typology between schizophrenia and cyclothymia and no sharp differential diagnosis. The numerous attempts to separate the two large groups of disease types are critically reported. Uncharacteristically pure residual states which leave the center of personality intact are more frequent than typical schizophrenic personality changes; the majority of schizophrenic patients are socially cured after more than two decades. More recent investigations on the course lead to an approximation to the concept of the "homogenous psychosis" and compel a greater observation of the "stratification rule" in the diagnosis.
MMW Munch Med Wochenschr 1976 Dec 17
PMID:[Nosology of schizophrenia (author's transl)]. 82 17

Growth hormone (hGH) responses to centrally acting dopamine agonists were used as indices of CNS dopaminergic function in order to test hypotheses implicating dopaminergic alteration in the etiopathology of schizophrenia. Apomorphine, a direct acting dopamine receptor agonist, and L-Dopa, an indirect agonist dependent upon presynaptic conversion to dopamine for its action, both elicited elevations in plasma hGH in most young male schizophrenic- and control-subjects. A highly significant difference was seen between the distribution of hGH responses to apomorphine for schizophrenics and that for controls. Unusually high hGH response to apomorphine was seen in schizophrenics who subsequently failed to respond to neuroleptic therapy; intermediate hGH response was seen in controls; and low hGH response was seen in subsequent neuroleptic responders; differences in hGH response were statistically significant for all intergroup comparisons. No such differences were seen between responses of individuals to L-Dopa and to apomorphine. The findings suggest that the variability of hGH response to apomorphine is a reflection of dopamine receptor sensitivity, and that this variability may be an index of non-endocrine related dopaminergic sensitivity. They are consistent with hypotheses relating schizophrenia to alteration in dopamine receptors, although the type of receptor and the direction of alteration may be complex.
Psychopharmacology (Berl) 1976 Dec 21
PMID:Dopamine receptor alteration in schizophrenia: neuroendocrine evidence. 82 70

On the basis of post-mortem studies it has been proposed that the central deficit in schizophrenia may be in noradrenergic transmission. It has also been proposed that there is a substantial central contribution to the excretion of the noradrenaline metabolite 3-methoxy-4-hydroxyphenylglycol (MHPG) and more particularly of its sulphate conjugate in man. There is throught to be a lesser central contribution to the excretion of the other major noradrenaline metabolites, vanillylmandelic acid (VMA) and the glucuronide conjugate of MHPG. A strong negative correlation was found between severity of illness in a group of 18 unmedicated chronic schizophrenic patients and their 24-h excretion of MHPG-sulphate but not of MHPG-glucuronide or VMA. However there was no significant difference in the mean excretion of MHPG conjugates or of VMA between the schizophrenic group and an institutional control group. This supports the idea of a relation between MHPG-sulphate excretion and central noradrenergic activity, but suggests that reduced brain noradrenaline turnover is neither necessary nor sufficient for schizophrenia to occur. One possible explanation is that reduced turnover pre-disposes towards a more severe illness in schizophrenics.
Psychopharmacology (Berl) 1976 Dec 21
PMID:Determination of 3-methoxy-4-hydroxyphenylglycol conjugates in urine. Application to the study of central noradrenaline metabolism in unmedicated chronic schizophrenic patients. 82 75

TRH was shown to be an extremely potent (ED50 = 0.04 mg/kg, IP) antagonist of isolation-induced aggression in male mice. The antifighting activity of TRH was selective in that it did not produce concurrent neurological impairment or significant alterations in spontaneous locomotor activity at antiaggressive doses. This activity of TRH appeared to be a direct affect on CNS structures since neither triiodothyronine nor any of the constituent amino acids of TRH antagonized aggression in isolated mice. The results are discussed in terms of the recent clinical effectiveness of TRH in some cases of mental illness (e.g., depression and schizophrenia).
Pharmacol Biochem Behav 1976 Dec
PMID:Antagonism of isolation-induced aggression in mice by thyrotropin-relasing hormone (TRH). 82 26

EEG correlates of subjective experiences induced by delta9-trans-tetrahydrocannabinol (THC) and EEG correlates of individual disposition to such experiences were investigated. Twelve normal volunteers took 200 mug/kg THC orally. The subjects were asked to signal subjective experiences. The EEG was analyzed (period analysis) before and repeatedly after THC injestion, during resting, attention, eye closure, visual hallucinations, and body image disturbances. EEG frequency spectra differed significantly between resting and visual hallucinations and body image disturbances. The differences included slower alpha and more theta during THC experiences, reminiscent of initial drowsiness EEG, and of some results in schizophrenia. The differences between spectra during visual hallucinations and during body image disturbances indicate different functional brain states. Subjects with a high tendency to cannabinol induced experiences exhibited resting spectra before and after THC with higher modal alpha frequences (reminiscent of subjects with high neuroticism scores) than subjects with a low tendency.
Biol Psychiatry 1976 Dec
PMID:Human EEG spectra before and during cannabis hallucinations. 99 86

Estimation of blood transit time in the neck and the extension of this into the head was made by a method of electrical impedance, over a wide age range, in 159 healthy subjects, 160 schizophrenic patients, and 199 patients with organic brain disease. In each case, the distance between the electrocardiogram and the next succeeding pulse-volume impedance wave was measured and averaged over 30 serial wave forms. Chronological age proved a significant variable, transit times lengthening progressively with the age, but only for measurements extending into the head. Sex and hemispheric laterality played no significant role. With age held constant, mean transit times into the head were significantly prolonged in both groups of patients as compared with controls. No significant differences were found however between means of psychiatric andneurological patients. It is suggested that these results reinforce the organic etiology of schizophrenia.
Biol Psychiatry 1976 Dec
PMID:Carotid-vertebral artery blood transit time: results in healthy subjects and patients with schizophrenia and brain disease. 99 88

A sample of 471 enlisted men 183 cm or taller serving in the US Navy, Coast Guard, and Marine Corps was screened for Y-chromosome aneuploidy by use of quinacrine fluorescence of peripheral blood smears. Two 47,XYY males were detected, resulting in a prevalence of 00425 or approximately 1 in 236. The prevalence of 47,XYY males (00331) in a number of samples of tall, non-institutionalized males is significantly higher than the incidence in newborn males (00061), indicating that 47,XYY males are disproportionately represented in tall male populations. The 47,XYY males had significantly higher scores than 46,XY males on the Schizophrenia, Schizophrenia+1K, and Prejudice scales of the Minnesota Multiphasic Personality Inventory and significantly lower scores on the Dominance scale. Since the probability that a randomly selected pair of subjects in the sample had four or more scale scores significantly different from the remainder of the group was greater than 05, it is possible that the differences between the 47,XYY and 46,XY males occurred by chance. On the other hand, one or more of these scales may measure personality dimensions on which non-institutionalized 47,XYY males may, in fact, differ from 46,XY males.
Br J Psychiatry 1976 Dec
PMID:Height and personality characteristics of 47, XYY males in a sample of tall non-institutionalized males. 100 Jan 41

Current psychiatric practice does not seem to have kept pace with the best recommendations of modern clinical psychopharmacology. Polypharmacy, inadequate dosage, overly brief drug trails, and erratic medication changes are commonplace. Psychopharmacology is obligated to disseminate the most current thinking in usuable form and psychiatry to attempt to implement it in clinical practice. Unique here is the concept that there are pharmacologic, theoretical, and technical reasons to prefer the use of high potency neuroleptics for the routine treatment of schizophrenia and to relegate low potency drugs to secondary status. Routine employment of higher standard neuroleptic doses is advanced to minimize the effects of individual variations in compliance, absorption, and metabolism. A suggested protocol for the acute treatment of schizophreniform disorders is offered.
Dis Nerv Syst 1976 Dec
PMID:Suggestions for a rational aproach to the chemotherapy of schizophrenia. 100 Nov 66

Cell-mediated immune response to myelin human basic protein was studied by the macrophage migration inhibition test in patients suffering from schizophrenia. Eighteen out of 32 patients with chronic schizophrenia demonstrated human basic protein-induced inhibition of the migration index, while 4 out of 41 acute schizophrenics showed an inhibition of macrophage migration.
J Neurol Sci 1976 Dec
PMID:Cell-mediated immunity to human myelin basic protein in schizophrenic patients. 100 51


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