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

The author describes psychotic conditions of co-twins who were not seen by a psychiatrist before, in 12 MZ and 62DZ pairs, where the probands suffered from manifest schizophrenia. Among MZ, one half of the examined patients was classified as "mildly expressed schizophrenia" and the other as schizoid personality abnormalities. The probands of MZ pairs displayed the prevalence of slow progressive variants of schizophrenia within the framework of both continuous and attack-like forms. DZ co-twins of schizophrenic probands according to the psychotic state formed a range of transitions from mildly expressed schizophrenia through personality abnormalities to accentuated personalities and norm.
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PMID:[Monozygotic and dizygotic twins discordant with regard to manifest schizophrenia]. 57 57

The author studied the genetical traits in 2 groups of probands with attack-like schizophrenia with corresponding sex and age. The 1st group (62 probands) consisted of cases where the average age of the manifest psychoses was 59.5. The second group consisted of cases with an average of the manifest psychoses of 30.9. It appeared that the morbidity risk for schizophrenia for all the relatives of the first degree of relationship in the families of patients with late attack-like schizophrenia is significantly lower than the morbidity risk in familiies with an onset in young age. At the same time the frequency of schizophrenia among the relatives of patients with late attack-like schizophrenia significantly exceeds the frequency of schizophrenia in the general population. An accumulation of psychoses of a different nozology was not observed. The frequency of schizophrenia among the parents and sibs in a late manifestation of the disease in the probands is lower than in early schizophrenia. These differences were not seen in the children. Among the relatives of patients with late and early attack-like schizophrenia there is a large amount of schizoid personality anomalies.
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PMID:[A comparative clinico-genetic study of attack-like schizophrenia with late and early manifestation with regard to age]. 111 84

Personality disorders related to schizophrenia were described since Kraepelin's works. According to the DMS III-R those disorders are gathered into the A cluster of personality disorders consisting in: schizotypal, schizoid and paranoid personality disorders. Schizotypal and paranoid personalities are biologically linked to schizophrenia and support the concept of "schizophrenia spectrum". Until now such a link is not found between schizoid personality and schizophrenia. Future research in the field of those personality disorders will bring a better knowledge in the pathogenesis of schizophrenia.
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PMID:[Personality disorders related to schizophrenia]. 167 Apr 8

This chart review study compared 54 schizophrenic patients with onset of illness after age 45 years to 54 young and 22 elderly patients with early-onset schizophrenia (before age 45). The index group was more likely to have visual, tactile, and olfactory hallucinations; a greater number of different types of hallucinations; persecutory delusions; and premorbid schizoid personality traits, and was less likely to have thought disorder and affective flattening, than was either comparison group. Among the two elderly groups, index patients had more auditory and visual sensory impairment. Nearly half (48.1%) of the index patients responded to neuroleptic treatment with complete remission.
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PMID:A chart review study of late-onset and early-onset schizophrenia. 848 Aug 49

The external validity of 10 schizoid personality scales was assessed against dimensional measures of DSM-III borderline (BPD) and schizotypal (SPD) personality disorders in a sample of 37 top-security prisoners. Significant relationships with SPD or BPD emerged for schizophrenism, withdrawn-disturbed relationships, hallucinatory predisposition, schizoidia, disordered thinking and perceptual aberration (r = 0.30-0.66). The first four of these scales were significantly related to SPD (r = 0.29-0.51) after partialling out the effects of BPD, indicating an intrinsic link between these scales and SPD which may constitute the genetic affinity of SPD with schizophrenia. It is suggested that scales which assess the construct of schizophrenism or 'interpersonal aversiveness' may be the most central to Meehl's (1962) 'integrative neural defect' or genetic predisposition to schizotypy.
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PMID:Validation of schizoid personality scales using indices of schizotypal and borderline personality disorder in a criminal population. 342 52

The Standardized Assessment of Personality, a semistructured interview for use with an informant, was used with a relative or a close friend to determine the premorbid personality of 100 consecutive patients admitted with major psychiatric disorders - major affective disorders (18 manics, 35 depressives), schizophrenia (28) and other functional psychoses (19). Forty-four per cent of the entire sample had an abnormal personality as defined by the presence of one of 10 prominent traits to a marked degree. A further 6% had the same traits to a lesser degree. The proportion of patients with an abnormal personality (all types) was comparable across the four diagnostic groups (manics 39%, depressives 54%, schizophrenics 39%, other functional psychotics 37%). However, if one included all traits (marked and mild), patients with an affective disorder had more between them than did the non-affective groups. This difference was largely accounted for by cyclothymic, anxious and obsessional traits. The schizophrenics and other functional psychotics had surprisingly few prominent traits and, in particular, a schizoid personality rarely preceded a schizophrenic illness.
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PMID:Personality and psychosis: use of the Standardized Assessment of Personality. 396 8

All hospital records, interviews, and notes are reviewed on a group of 52 chronic hebephrenic/catatonic schizophrenics who were institutionalized before the era of antipsychotic medications. The authors catalog the presence or absence of individual symptoms of schizophrenia on a year by year basis over a span of 25 years and present this data in a series of bar graphs. Symptoms such as avolition, impaired social interaction, and flat affect become more frequent over the 25 years of follow-up. Hallucinations and delusions become less frequent. Eighteen of the patients are noted to have had a DSM-III personality disorder premorbidly and eight of these are characterized as schizoid personality disorder. Level of insight is found to be poor at the onset of schizophrenia and deteriorates further over the next 5 years. Although the study design contains a sampling bias in favor of chronically institutionalized cases, several lines of evidence suggest that the trends reported here are not artifacts of institutionalization but are due to schizophrenia.
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PMID:The micropsychopathology of hebephrenic/catatonic schizophrenia. 685 92

A study of the clinical concordancy in 410 schizophrenic patients (sibs and parents -- children) detected the most frequent coinciding traits of the disease in the sibs and parent -- children pairs. The following traits were attributed to the coinciding features: premorbid schizoid personality traits, a short initial period, a pseudopsychopath syndrome in the initial period, paranoid manifest symptomatology, paranoid form of schizophrenia, a continuous progressive development of the process, apathico-abulic defect symptomatology. It was demonstrated that the variance of traits in the clinical picture of schizophrenia in hereditary loaded families is subjected to the impact of such factors as sex, age, supplementary hereditary loading by psychoses, exogenous factors.
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PMID:[Concordance of clinical signs of schizophrenia in families with hereditary loading]. 743 59

Direct, blind interviews were used to study the risk for and prevalence of DSM-III-R Axis I and II disorders in 93 first-degree relatives of outpatients with schizotypal personality disorder (SPD) and outpatients with other personality disorders. Risks for SPD (at a slightly loosened diagnostic threshold) and schizoid personality disorder were significantly higher in the families of probands with SPD. Schizophrenia was present only among relatives of probands with SPD, accounting for a morbid risk of 4.1 percent. Neither familial risks for mood and anxiety disorders nor the prevalence of other Axis II disorders significantly differed in the two groups of relatives. It is suggested that SPD is a familial disorder representing a phenotypic expression of liability to schizophrenia.
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PMID:A family study of schizotypal disorder. 777 Jul 39

The auditory P300 response and smooth pursuit eye tracking were recorded from a group of 23 male adult subjects who had been diagnosed in childhood as having schizoid personality. No differences were found in these physiological measures between the study group, their matched controls of other child psychiatric patients, and a group of population controls. The essentially negative findings are discussed in the light of abnormalities of these psychophysiological responses previously found in schizophrenic patients, in some of their biological relatives, and in other groups of psychiatric patients, including autistic children and adults with a diagnosis of borderline and schizotypal personality disorder. Results suggest that "schizoid" children, despite their high scores on a measure of schizotypy, do not have schizophrenia spectrum disorder or that schizotypy is a heterogeneous condition.
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PMID:"Schizoid" personality in childhood: auditory P300 and eye tracking responses at follow-up in adult life. 796 32


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