Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036341 (schizophrenia)
 60,220 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

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.
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PMID:Human EEG spectra before and during cannabis hallucinations. 99 86

On the basis of clinico-catamnestical studies of 72 patients with adolescen schizophrenia and dysmorphophobic disturbances the author distinguished 3 variants of the outcome of such conditions. The clinical picture was in correlation with the degree of progressiveness of the disease and the type of development. Some prognostic criteria concerning the development of the disease are given. In favour of a relatively favourable prognosis of dysmorphophobic conditions spoke the following phenomena: a monothematical character of dysmorphophobia, its nondelusional state, the absence of focal cenesthopathy and olfactorial hallucinations, a proximity of the content of dysmorphophobia to pubertal psychological signs, a connection between the exacerbation periods with depressive states, an undulating charcter of dysmorphophobic symptoms during adolescence and the oneset of the disease with psycheastheno-like disturbances. An unfavourable prognosis was characterized by a delusional character of dysmorphophobic disturbances, bizzare delusional hypochondric systems, including dysmorphophobia, ideas of reference, cenesthopathy, tactile and olfactory hallucinations, an insignificant dependence of dysmorphophobia from affective disorders and early appearing distinct personality changes.
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PMID:[Prognosis of juvenile schizophrenia with dysmorphophobic disorders (according to catamnestic findings)]. 101 44

The perceptional characteristics of hallucinatory events and the phenomenal forms of artificially produced hallucinations were studied on a total of 210 patients (144 patients with delirium tremens, alcoholic hallucinosis, abstention from alcoholic beverages freedom from abstinence symptoms and 66 subjects with schizophrenia, symptomatic epilepsy, general paralysis, neuroses, and conditions of intoxication). The results of our studies show that Liepmann's test may be used to reliably diagnose genuine hallucinoses. They are usually preceded by a number of different stages, these being the stages of stability of development and full development of prehallucinatory phenomena, simultaneous and suggestive periods of geniune hallucinations. Liepmann's test is specifically distinctive of psychopathological disorders associated with delirium tremens.
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PMID:[Liepmann's test and its specific significance in the alcoholic delirium]. 119 65

From a sample of 1,005 patients admitted to the Psychiatric Hospital in Aarhus for the first time during the period 1950-1959 and diagnosed as suffering from manic-depressive psychosis or endogenous depression (affective psychoses), a subsample of 104 manic-depressive patients with anancastic symptoms in the history was selected. The 104 probands were individually matched with 104 non-anancastic probands with affective psychoses. The study was designed as a follow-up study, and the patients who were still living were seen personally. In the search for factors which could be used to distinguish affective psychoses with anancastic symptoms from affective psychoses without these traits, the incidence of a number of psychopathological features was evaluated based on the case histories and the information given by the patients at the follow-up. There was no difference as far as atypical, schizophrenia-like symptoms were concerned between the anancastic probands and the controls. Manic and hypomanic features were more frequent among the controls, corresponding to a greater number of bipolar psychoses among them. At the same time, the controls showed a significant preponderance of decidedly psychotic symptoms such as disturbances of consciousness, delusions and delusion-like ideas and hallucinations. Furthermore, retardation was more frequent among the controls. There was no difference in the suicidal behaviour of the two groups. Symptoms which were more often met among the anancastic depressives were: anxiety, agitation, diurnal variation of mood and early awakening. Seasonal variation in symptomatology was also more frequent among the anancastic probands. The same held true for depersonalization. The anancastic probands showed a significant preponderance of anancastic premorbid personality features. A positive correlation was found between the number of anancastic personality features and the following symptoms: agitation, anxiety, diurnal fluctuation, seasonal variation, hypochondriacal attitude and depersonalization. On the other hand, objective retardation or flight of ideas showed a significant negative correlation. The pattern of the anancastic symptoms was rather uniform; aggressive obsessions, mostly in the form of suicidal and homicidal obsessions, were present in more than two thirds of the cases. The anancastic depressions were often less severe than non-anancastic depressions in that the latter were more often complicated by decidedly psychotic symptoms. It is possible to interpret the symptomatology of anancastic depressions as a pathoplastic influence of the anancastic personality, but it cannot be excluded that some of the symptoms like anxiety and agitation are linked to the presence of anancastic symptoms as such.
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PMID:The psychopathology of anancastic endogenous depression. 119 73

Sixty-nine schizophrenic patients (52 men and 17 women) who were consecutive admissions to Shehar Psychiatric Hospital, Taif, Saudi Arabia, were investigated for the phenomenology and frequency of visual hallucinations. Of these patients 43 (62 per cent) were visually hallucinated. It is concluded that visual hallucinations in schizophrenia are of common occurrence in this country. The need for further investigation as to the part played by cultural and other factors is emphasized.
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PMID:The frequency of visual hallucinations in schizophrenic patients in Saudi Arabia. 120 47

55 patients with schizophrenia were divided into three groups according to the clinical symptoms: (1) productive schizophrenias, i.e. patients with hallucinations, catatonic excitation and stupor; (2) paranoia and schizophrenia simplex, and (3) non-productive schizophrenias, i.e. patients with schizophrenic defects and hebephrenia. Total cerebral blood flow (CBF) and the rates of cerebral oxygen, carbon dioxide, glucose and lactate metabolism were investigated. Patients with productive schizophrenias displayed a significant increase in CBF (to an average of 101.4 ml/100 g min), CMR oxygen (to an average of 6.26 ml/100 g min) and CMR glucose (to an average of 12.11 mg/100 g min), i.e. CBF and CMR oxygen nearly doubled and CMR glucose more than doubled in comparison with normal findings. In patients with paranoia and schizophrenia simplex CBF and oxidative metabolism did not vary much and were within the normal range. Non-productive schizophrenias showed a significant decrease in CBF (to an average of 36.7 ml/100 g min), CMR oxygen (to an average of 2.20 ml/100 g min) and CMR glucose (to an average of 3.86 mg/100 g min) in comparison with both other groups of schizophrenias and the group of healthy young men. The results demonstrated variations in CBF and oxidative metabolism of the brain in patients with distinct types of schizophrenia. It was possible to find a correlation between the mental state of the psychosis on the one hand and CBF and metabolism on the other. The high CBF and metabolic rates of the brain in productive schizophrenias might be due to disturbances in the cerebral metabolism of biogenic amines.
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PMID:Blood flow and oxidative metabolism of the brain in patients with schizophrenia. 123 37

Long before the era of heart surgery began, "cardiac psychoses" were known and described. They do not differ at all from postoperative psychoses after heart-surgery. On the other hand heart-surgery carries a far higher incidence of psychiatric complications than general surgery (general surgery 0,1--1,0%; heart surgery 10--60%). There is no reason to believe that the intensive care unit plays a decisive role in the origin of postoperative cardiac psychoses. Among 150 patients there were 60=40%, who did not show any psychiatric symptoms after surgery. These were exposed to the same environment of the intensive care unit as were the patients who developped symptoms. There were however correlations of statistical significance between "cardiac psychoses" and 1. an occurrence of endogenous psychoses in the family with first degree relatives or in the life history of the patient himself, 2 higher grade of severity of heart disease, 3. extra corporal circulation, 4. higher age, 5. male sex. Postoperative cardiac psychoses are mainly of the type of exogenous psychoses (akuter exogener Reaktionstyp Bonhoeffer). There is no doubt that psychological, reactive and environmental factors do play a certain role too. This is shown by the character of delusions and hallucinations which frequently reflect the postoperative situation. Persecutory delusions with the fear of being killed and ideas and fears of severe body mutilation are the most common motives. Similar motives are frequently observed in postoperative dreams. The manifestations of mental disease in the family or personal history of the patient is considered a significant presupposition of developing a cardiac psychosis of the type of endogenous depression, acute delirium or with schizophrenia like delusions.
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PMID:[Mental and neurological disorders associated with heart operations. Pre- and postoperative studies]. 126 55

Psychotic side effects of steroids have been observed at relatively high frequency if mild cases, such as euphoria, are included, while it has been said that incidences differ among kinds of steroids. We reported a case developing severe schizophrenia-like symptoms following the treatment with betamethasone although this drug is believed to be rarely involved in steroid-induced psychosis, and its psychotic side effects have been rarely reported. When betamethasone was administered for progressive peripheral facial paralysis at a mean daily dose of 7mg, psychotic symptoms appeared from the 15th treatment day. Psychosis began with interrupted appearance of excitation, autism, and misanthropia. Although the steroid was gradually decreased in dose because of abatement of facial paralysis, not only psychotic symptoms were aggravated, but also appeared hallucination. Thus the steroid was withdrawn before the scheduled date while its dose was gradually decreased, and haloperidol was administered. Psychotic symptoms were gradually eliminated and completely disappeared about 40 days after onset.
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PMID:[A case of steroid psychosis associated with betamethasone]. 128 92

A retrospective diagnosis was obtained from a sample of 300 patients discharged from the Psychiatric Hospital of Maracaibo (Venezuela), with the clinical diagnosis of schizophrenia. These medical records were evaluated under DSM-III criteria, by two psychiatrists using structured formats. We found that 46.3% of the patients met the criteria corresponding to the schizophrenic disorder; from the remaining 53.6%, 19.6% did not have enough information to be included in this category, and 34.6% was classified under other psychiatric disorders. Of the patients with schizophrenic disorders, 61.2% were male, single, and Venezuelan citizens; 84.9% began their clinical manifestations during the second or third decade of their lives; 89.9% received education. The predominant symptomatology was impairment in social relations (93.5%), deterioration in hygiene and self- care (92.5%), impairment in functioning (87.1%), illogical thinking (86.3%), with predominant persecutory delusions, auditory hallucinations, dialogue hallucinations (84.6%), grandiose delusions (48.2%), and personal experiences of corporeal changes (45.3%). Affective symptomatology were present in all patients and the predominant subtype was the paranoid, that was observed in 80.6% of the cases. Positive signs of this disease in family history were present in 41 percent of the cases. Our findings confirm the necessity to unify criteria concerning the diagnosis of mental disorders, as it became evident that the variability in diagnosis, makes more difficult the psychiatric research in our country.
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PMID:[Retrospective diagnosis of a sample of patients discharged with a diagnosis of schizophrenia]. 129 81

Late auditory evoked potentials (AEPs) were recorded by the "odd-ball" method in 20 schizophrenic patients according to DSM III R diagnosis criteria compared with 30 control subjects matched for sex and age. Patients were on antipsychotic medications; mean duration of illness was 3, 55 years. We have also proceeded to a clinical quantitative assessment of negative and positive symptoms of schizophrenia with Andreasen's rating scales. In the group of patients, we have observed a significant lengthening of the latency of N 1, N 2, P 3, N 3 and a decreased amplitude of N 1 and P 3. These results are in favour of an impairment of cerebral information processing probably localized in the subcortical level. Statistically significant correlations have been noticed between the anomalies of the last stages of information processing (P 3, N 3) and negative symptoms, more particularly affective flattening and attentional impairment. The disturbances of the first stages of information processing (P 2) and of automatic information processing (N 2) were related to positive symptoms, hallucinations and delusions especially. The anomalies of N 2 were also related to the sum of the global scores: an attentional impairment could be a main factor in the determinism of schizophrenia.
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PMID:[Correlations between delayed auditory evoked potentials and clinical evaluation of schizophrenic symptoms]. 134 22


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