Genetic independence of manic-depression and schizophrenia. 1981

A W Loranger

Increasingly sophisticated twin and adoption research has demonstrated major genetic contributions to the etiology of manic-depression and schizophrenia. But studies disagree concerning whether the two are genetically related illnesses. This lack of consensus could be due to individual, regional, and temporal differences in the criteria used to diagnose the two conditions. This study is the first to employ the new DSM-III criteria. Schizophrenia was no more common in the 1,098 first-degree relatives of 100 male and 100 female manic-depressives than it is in the population at-large. This would appear to strengthen the view that manic-depression and schizophrenia are genetically unrelated diseases.

UI MeSH Term Description Entries
D008297 Male Males
D003866 Depressive Disorder An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent. Depression, Endogenous,Depression, Neurotic,Depression, Unipolar,Depressive Syndrome,Melancholia,Neurosis, Depressive,Unipolar Depression,Depressions, Endogenous,Depressions, Neurotic,Depressions, Unipolar,Depressive Disorders,Depressive Neuroses,Depressive Neurosis,Depressive Syndromes,Disorder, Depressive,Disorders, Depressive,Endogenous Depression,Endogenous Depressions,Melancholias,Neuroses, Depressive,Neurotic Depression,Neurotic Depressions,Syndrome, Depressive,Syndromes, Depressive,Unipolar Depressions
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000341 Affective Disorders, Psychotic Disorders in which the essential feature is a severe disturbance in mood (depression, anxiety, elation, and excitement) accompanied by psychotic symptoms such as delusions, hallucinations, gross impairment in reality testing, etc. Depression, Reactive, Psychotic,Mood Disorders, Psychotic,Psychoses, Affective,Psychotic Affective Disorders,Psychotic Mood Disorders,Affective Disorder, Psychotic,Affective Psychoses,Disorder, Psychotic Affective,Disorders, Psychotic Affective,Mood Disorder, Psychotic,Psychotic Affective Disorder,Psychotic Mood Disorder
D001714 Bipolar Disorder A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence. Affective Psychosis, Bipolar,Bipolar Disorder Type 1,Bipolar Disorder Type 2,Bipolar Mood Disorder,Depression, Bipolar,Manic Depression,Manic Disorder,Manic-Depressive Psychosis,Psychosis, Manic-Depressive,Type 1 Bipolar Disorder,Type 2 Bipolar Disorder,Psychoses, Manic-Depressive,Bipolar Affective Psychosis,Bipolar Depression,Bipolar Disorders,Bipolar Mood Disorders,Depression, Manic,Depressions, Manic,Disorder, Bipolar,Disorder, Bipolar Mood,Disorder, Manic,Manic Depressive Psychosis,Manic Disorders,Mood Disorder, Bipolar,Psychoses, Bipolar Affective,Psychoses, Manic Depressive,Psychosis, Bipolar Affective,Psychosis, Manic Depressive
D012559 Schizophrenia A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior. Dementia Praecox,Schizophrenic Disorders,Disorder, Schizophrenic,Disorders, Schizophrenic,Schizophrenias,Schizophrenic Disorder

Related Publications

A W Loranger
January 1990, Trends in neurosciences,
A W Loranger
October 1983, Lancet (London, England),
A W Loranger
March 1978, The American journal of psychiatry,
A W Loranger
March 1980, The British journal of psychiatry : the journal of mental science,
A W Loranger
June 1980, The American journal of psychiatry,
A W Loranger
March 1975, La Nouvelle presse medicale,
A W Loranger
November 1994, Canadian journal of psychiatry. Revue canadienne de psychiatrie,
A W Loranger
January 1962, Proceedings, annual meeting of the Medical Section of the American Life Convention,
Copied contents to your clipboard!