Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Many patients present with stupor or substupor without classical catatonic signs as described by Kahlbaum. The phenomenological literature is not clear as to whether stupor, when it presents alone, constitutes a separate syndrome or is a forme fruste of catatonia. All patients who presented with stupor, (a) partial or total mutism or (b) absent or decreased motor responses (n = 22), were compared with patients who also had classical catatonic signs such as negativism or waxy flexibility (n = 43) over a one-year period (1988), on sociodemographic and clinical variables. There were very few significant differences between the two groups (age, sex, diagnosis, duration of illness, number of ECTs required). The stupor group had a slight excess of patients with manic-depressive psychosis, depression and more frequently positive family histories of mental illness. The current study provides a tentative support to the hypothesis that stupor is a catatonic sign, and even when present alone can be considered to constitute a catatonic syndrome.
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PMID:Is stupor by itself a catatonic symptom? 129 21

Lithium is the treatment of choice for bipolar affective disorder (manic-depression) and is useful in other recurrent affective and nonaffective illnesses. This review discusses lithium's actions on period, phase, amplitude and coupling of biological rhythms that may relate to its therapeutic effectiveness. Alternatively, lithium might interact with environmental light to influence circadian rhythms by an action on the retina. The mechanisms responsible for lithium's chronopharmacological actions are not known, but cellular cations, phosphoinositide or adenylate cyclase second messenger systems, hormones and neurotransmitters may all be involved.
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PMID:Rhythms and the pharmacology of lithium. 129 45

Carbamazepine treatment was used with 54 patients suffering from endogenous depression and organic depression. The anti-depressive effect was found to be the best in those patients with organic depression, while in endogenous depression it was better with bipolar affective disorder and with irregular EEG recordings.
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PMID:[Carbamazepine in the treatment of depressive syndromes]. 130 5

Lithium ion, which inhibits hydrolytic degradation of inositol monophosphates, is the most common therapeutic agent used in the control of bipolar disorder. There exists evidence that elevated elemental vanadium levels may play an etiological role in at least some forms of manic-depression. Here we demonstrate that vanadate treatment of intact cells from several different clonal lines synergistically induces substantial augmentation in neurotransmitter receptor-mediated or growth factor receptor-triggered inositol trisphosphate accumulation in situ. Furthermore, studies done using cellular extracts indicate that effects of vanadate treatment in situ may be due to its ability to inhibit hydrolysis of inositol 1,4,5-trisphosphate inositol 1,3,4-trisphosphate, and inositol 1,3,4,5-tetrakisphosphate in vitro. These results suggest that vanadate treatment may facilitate characterization of inositol phosphate metabolism and intracellular signaling.
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PMID:Vanadate amplifies receptor-mediated accumulation of inositol trisphosphates and inhibits inositol tris- and tetrakis-phosphatase activities. 131 22

Optimal treatment of mood disorders and prevention of suicide requires biological and psychosocial methods, therapeutic alliance and psycho-education. In moderate unipolar depression an antidepressant may be sufficient, if necessary potentiated by another antidepressant or triiodothyronine. In moderate bipolar depression lithium or carbamazepine are preferred. In severe unipolar and bipolar depression the combination of an antidepressant and lithium (or carbamazepine) or electroconvulsive therapy (ECT) is indicated, in psychotic depression neuroleptics, too. Non-selective monoamine oxidase inhibitors (MAOIs) are the most potent antidepressants. Moderate acute mania and mixed state may respond to lithium, carbamazepine or valproate only. In severe cases a neuroleptic and lithium are combined, or these drugs may be combined with carbamazepine or valproate. Electroconvulsive therapy is preferable in acute mixed states with marked confusion or depression. In chronic mixed state and rapid cycling, withdrawal of antidepressants and neuroleptics should be tried. Most patients will need a combination of lithium and carbamazepine or valproate. Added to these drugs, antidepressants are less risky. Adding thyroxin may stabilize rapid cycling. The combination of lithium and an antidepressant is the most potent prophylaxis in unipolar disorder and bipolar disorder dominated by depression.
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PMID:[Affective disorders. Drug treatment and electroconvulsive therapy]. 135 73

A potential role of dopamine in bipolar disorder has been suggested by several strands of evidence, namely the ability of dopaminergic agonists to induce mania and the effects of lithium, carbamazepine and the antipsychotics on central dopamine receptors and/or turnover. We therefore aimed to determine if bipolar disorder in two large bipolar pedigrees was linked to the recently cloned dopamine D1 (DRD1) and D2 (DRD2) receptors. (These have been mapped to chromosomal regions 5q35.1 and 11q22.3-q23, respectively). Linkage of bipolar disorder and recurrent depression to DRD1 and DRD2 was tested using a series of genetic models with varying penetrance levels. Additionally, linkage was examined using a series of levels of definitions of affective status (ranging from bipolar I alone to all affective illnesses). Close linkage to these markers was strongly excluded using each model and definition. The findings for DRD1 also persisted when a wide range of rates of 'sporadic' (non-genetic) presentations of illness were incorporated in the analysis, but the DRD2 results did not remain statistically significant at high sporadic rates. The exclusion of linkage to DRD2 is consistent with other recent reports.
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PMID:Exclusion of close linkage of bipolar disorder to dopamine D1 and D2 receptor gene markers. 138 98

In a three-year prospective study of service-based incidence of functional psychoses in Africa, 94 cases of brief reactive psychosis were compared with 56 cases of schizophreniform syndromes, 29 cases of DSM-III schizophrenia and 14 of manic-depressive psychosis. This was supplemented by retrospective study of the same syndromes not in their first episode. Brief reactive psychosis was found to be a composite syndrome. The 50% with preceding depression were a distinct group, in terms of course and demographic features. Of those with intense prodromal anxiety, most were a single episode precipitated by a major life event, a few showed a recurrent long-term pattern. Schizophrenia was heralded, or presented unequivocally months or years later, in 10-20%. The schizophreniform group comprised a range of atypical psychoses intermediate between the transient and major psychoses. The pattern of precipitants and the over-representation of education and paid employment in the acute syndromes, compared with the major psychoses, in a society which was largely first-generation educated, suggested a link with rapid social change.
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PMID:Brief reactive psychosis and the major functional psychoses: descriptive case studies in Africa. 138 28

Smooth pursuit eye movements to a sinusoidally moving target were recorded using the electro-oculogram in 49 subjects with bipolar disorder, 19 with major depressive disorder and 61 with definite schizophrenia, and compared with 145 normal controls. The signals were analysed in the frequency domain to yield a signal to noise ratio that is known to relate to accuracy of smooth pursuit. Smooth pursuit was found to be significantly poorer in schizophrenics than in bipolars, major depressed or controls. Eye-tracking performance was independent of the effects of neuroleptics, tricyclic antidepressants or lithium, and was not altered by the severity of depression in the affective psychoses. There was a small, but significant worsening of smooth pursuit with age in controls and schizophrenics, but this did not account for the group differences. The results support the view that among the major psychoses eye-tracking dysfunction is specific to schizophrenia.
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PMID:Eye-tracking dysfunction in the affective psychoses and schizophrenia. 141 83

Major depressive disorder using Feighner et al. (Arch. Gen. Psychiatry 26, 57-63, 1972) and DSM-III or DSM-III-R criteria has proven to be a heterogeneous diagnosis. It apparently includes a wide variety of clinical conditions. This report, based upon the results of a multi-year blind follow-up of 500 randomly selected psychiatric outpatients focuses on certain problems associated with the diagnosis of primary unipolar affective disorders. At index, 141 patients received diagnoses of primary unipolar depression. At follow-up, only 62 (44%) of these received the same diagnosis, with an additional 14 (10%) receiving a diagnosis of undiagnosed: questionable primary unipolar depression, and 5 (4%) a diagnosis of bipolar disorder. Thus, about 43% received other diagnoses at follow-up: 35 (25%) diagnoses of secondary depression and 25 (18%) other diagnoses without indication of an affective component. Bipolar patients' stability was significantly better for those who were manic at intake.
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PMID:Unipolar depression: diagnostic inconsistency and its implications. 144 28

Lithium remains the mainstay of therapy for most patients with bipolar disorder. Patients with syndromal variations of bipolar disorder, such as those experiencing mixed states or dysphoria have generally had a rather poor therapeutic response to lithium. Our group conducted a double-blind, parallel-group comparison of lithium and valproate for the control of mania in 27 patients with bipolar disorder. The study addressed the question of whether certain illness characteristics might be predictive of a positive response to a particular pharmacologic agent. There were significant differences in the cohort of patients who responded favorably to valproate compared with those who did not. Pretreatment depression scores were higher in the patients responding to valproate than in nonresponders. Patients with depressed mood or anxiety associated with mixed states responded equally to lithium and valproate. Studies are needed to clarify the clinical and pathophysiologic status of mixed or dysphoric manic states and to validate predictors of response to therapeutic agents.
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PMID:Dysphoric mania. 154 12


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