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

The classical subtypes of schizophrenia include the paranoid, hebephrenic, undifferentiated, residual, catatonic, and simple. This review of studies, especially those conducted during the last decade, supports the validity of the subtypes, particularly the paranoid subtype. To a lesser degree, the same holds for the hebephrenic and undifferentiated subtypes. The catatonic subtype has seldom been studied, perhaps because it is so rare. The residual and simple subtypes have not been the focus of any studies of note. Subtype criteria for DSM-IV are suggested based on the review. The paranoid and undifferentiated subtypes should be retained with criteria identical to those in DSM-III-R. The disorganized subtype also should be retained but with modified criteria that are somewhat more stringent than those in DSM-III-R. Catatonia and residual schizophrenia should remain, but insufficient data exist upon which to base any changes in criteria. Given its historical precedence, as well as the emerging importance of deficit processes in schizophrenia, simple schizophrenia should be renamed and reintroduced as a subtype in DSM-IV. Two variations in criteria are offered.
 ...
PMID:Classical subtypes for schizophrenia: literature review for DSM-IV. 182 77

Consecutive new patients presenting at a Nigerian psychiatric unit over a 14-month period and fulfilling the DSM-III criteria for schizophreniform disorder, (active) schizophrenia and residual schizophrenia were studied. There were no differences between the three groups with respect to background social data. The schizophreniform patients had a lower incidence of previous psychotic episodes. There were no differences between the first two groups with respect to the distribution of PSE symptoms and signs, Schneider's First Rank Symptoms, or severity of psychopathology. Initial clinical outcome, and longer-term clinical and social outcome, assessed 25-38 months after index presentation, was best in the schizophreniform patients and worst in the patients with residual schizophrenia. The findings are consistent with schizophreniform disorder lying on a spectrum of schizophrenic disorders. They also highlight inadequacies in mental health services in Nigeria and other developing countries.
 ...
PMID:The DSM-III concepts of schizophrenic disorder and schizophreniform disorder. A clinical and prognostic evaluation. 344 4

Using clinical and follow-up methods of investigation the authors studied a number of patients with juvenile slowly progressive schizophrenia in whom the disease picture in youth was characterized by over-worship disturbances of the "metaphysical intoxication" type which were attended by marked social and occupational disadaptation. A group of patients (n = 25) was identified with a state of practical cure after youth. Three most characteristic patterns of personality changes in these patients were described. The dominant role in their structure was played by manifestations of delay of mental maturation and the syndrome of psychic juvenilism of a dissociated nature. A certain relationship was found between the level and nature of the patients' occupational adaptation and the type of their personality changes. The question is discussed about the determination of the disease stage in such cases. The authors consider them as recovery states with some personality changes which can be ascribed to residual schizophrenia.
 ...
PMID:[Prolonged states of virtual recovery after atypical pubertal schizophrenic episodes with over-valuation disorders of the "metaphysical intoxication" type]. 373 87

The anterior cingulate gyrus (acg) is involved in mechanisms of attention and emotion, where the right hemisphere is considered to be dominant. One of the models for neuropsychological dysfunction in schizophrenia suggests an impairment in the balance of lateralized functions. Fourteen adult human female brains, having no macroscopic lesions, were used in this study. Seven brains came from female patients with clinical diagnoses of residual schizophrenia (DSM-III-R; APA 1987). Seven female brains were used as controls. Thirteen male brains were also studied, with the sole purpose of establishing the typicality of the female controls. All schizophrenic brains were age matched with control brains. Right laterality for weight (71.4%) and surface (85.7%) was observed in the acg of female control brains. The inversion of this laterality in a significant number of the schizophrenic cases was the most relevant finding in this study.
 ...
PMID:Inversion of the hemispheric laterality of the anterior cingulate gyrus in schizophrenics. 754 68

Dysfunction of T-cell mediated immunity, which is indicated by deficient production of interleukin-2 (IL-2) and elevated levels of the soluble interleukin-2 receptor (sIL-2R), has been consistently demonstrated in schizophrenia. Recent studies on interferon-gamma (IFN-gamma), a cytokine which is also produced by T-helper cells, have indicated a lowered production in acute schizophrenia. It is not known whether this deficit is restricted to cases of acute schizophrenia or whether it is also present in residual schizophrenia and in first degree relatives, and therefore might be associated with genetic liability to the disease. We investigated 27 individuals (schizophrenics and first degree relatives) of 6 families with multiple occurrence of schizophrenia and 27 age- and sex-matched healthy controls. The production of IFN-gamma was lowered only in the acutely ill schizophrenic individuals, when compared to both controls and first degree relatives. In the context of current knowledge, this result indicates that the production of IFN-gamma can be discussed as a marker of acute exacerbation of schizophrenia, but it is not likely to represent a phenotypic marker of a genetic trait associated with the disease.
 ...
PMID:Production of interferon-gamma in families with multiple occurrence of schizophrenia. 907 78

Of 73 patients who met selection criteria to enter into a study on aggressive behaviour in schizophrenia, 11 patients (15.1%) did not participate. The participants and non-participants were similar in age, gender ratio and proportion who had aggressive behaviour. The participants, however, had a longer duration of illness, a longer duration of current admission, were more likely to suffer from residual schizophrenia, but less likely to suffer from disorganized schizophrenia and were less severely ill than the non-participants. These results indicate the need, in studies of aggressive behaviour in schizophrenia, to consider non-response bias as a confounding variable.
 ...
PMID:Studies of aggressive behaviour in schizophrenia: is there a response bias? 938 45

The impairment in tasks requiring intact frontal lobe functions has been repeatedly shown in schizophrenics. However, the relative roles of confounding factors, like duration of the disease, social withdrawal, or antidopaminergic medication, are not clearly demonstrated. We studied the performance of 12 young active patients, with chronic residual schizophrenia that had recent onset, and 12 control subjects, with frontal lobe tests and with a battery designed to explore working memory. The results show normal performance in schizophrenia. The small number of patients does not allow definitive conclusions, but this study suggests that a frontal dysfunction may not be present early in the evolution of schizophrenia in active patients.
 ...
PMID:[Absence of frontal lobe dysfunction and working memory deficits in young schizophrenic patients]. 955 4

The present paper describes cognitive approaches to the treatment of a major depressive episode in a patient with residual schizophrenia. The goal of therapy was to increase and stabilize the patient's physical activity through decreasing dysfunctional cognition pertinent to inertia. A therapeutic strategy of 'scheduling activities' was first selected, but to no effect. The vicious circle of alternating excessive activity and total inertia remained unchanged. Based on a revised cognitive case conceptualization, a second strategy, 'scheduling inertia', was then introduced, in which the patient was asked to stay in bed or take a rest for planned periods of time every day. This intervention helped the patient to counteract her perfectionist beliefs. The results suggest that 'scheduling inertia' may be a useful strategy for improving inactivity in a major depressive episode during the residual phase of schizophrenia.
 ...
PMID:Cognitive therapy for a major depressive episode in residual schizophrenia. 1059 80

Forty three patients, mean age 55.20 +/- 9.27 SD, affected by Schizophrenia Residual Type (DSM IV, RDC criteria) and treated with neuroleptic drugs for a mean of 25.42 years (+/- 4.12 SD) were included into the study. Clinical evaluation was cross-sectional assessed by BPRScale, SAPS, SANS, HRS-D, EPSE. ACS and MMSE. Seventy percent of patients presented a "postpsychotic depression" (42%, mild; 16%, moderate and 12% serious). "Postpsychotic depression" does not seem to be influenced by neuroleptics, but it seems to be a component of residual schizophrenia in patients with a long lasting permanence in a mental hospital.
 ...
PMID:"Postpsychotic depression" and residual schizophrenia in a mental health hospital. 1121 34

The paper gives reasons for the view that psychopathology has to be not only the fundamental method for clinical psychiatry, but also an essential prerequisite for a rational therapy of schizophrenia and related disorders. Because schizophrenic patients present very different types of psychopathological cross-sectional syndromes, the choice of a distinct neuroleptic or antidepressant compound and their dosage has to be guided along the psychopathological target syndrome. The clinical-therapeutical effects of neuroleptics and antidepressants are above all symptom- (Freyhan) or syndrome-directed. The differentiation of positive and negative symptoms, acute and chronic or residual schizophrenia, or of the prodromal symptoms according to contemporary approaches seems to be not sufficient for the early detection of psychopathological predictors of an impending psychosis and the special indication and choice of a distinct drug and dosing strategy. This is valid for maintenance treatment of patients in remission, for early intervention in the prodromal stages before the first and later psychotic episodes and in preventing relapses. Relapse rates can be reduced by a low dose maintenance therapy with basic symptom oriented early adaptation of the dosage in the prodromes before psychotic remanifestations. Some presuppositions of an effective psychopharmacological and psychological therapy in view of clinical psychopathology (K. Schneider) and the "phenomenological attitude" (K. Jaspers) are outlined. A necessary condition for the secondary as well as for the primary prevention of psychotic episodes is the detailed knowledge of the interindividual different dynamic and cognitive basic symptoms, defined in the Bonn Scale BSABS, that are experiential in kind and not identical with the negative and behavioral "Prodromal and Residual Symptoms" of DSM and ICD-10. The early detection and preventive intervention of schizophrenic psychoses is most likely possible by means of a subtle, descriptive-analytical phenomenology and psychopathology. Also "chronic" patients beyond acute psychoses, e. g. those with persisting pure residues, characterized not by true negative, but by basic symptoms, often respond to distinct atypical neuroleptics and/or antidepressants. The knowledge of the prodromal symptoms and the coping strategies, frequently developed by the patients themselves, is an essential component of a basic symptom oriented psychoeducational concept.
 ...
PMID:[How far is psychopathology still meaningful for the treatment of schizophrenia?]. 1153 56


1 2 3 Next >>