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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

1. Results of investigations of the immune function in affective disorders are conflicting. Some authors described an immune suppression, others an immune activation in major depression. The authors performed a study of cellular immunity in the MDD subtype endogenous depression. 23 patients suffering from endogenous depression were investigated during the depressive state, the results were compared with a group of 14 patients during the free interval and 51 healthy controls. 2. The lymphocyte proliferation after incubation with diphtheria- and tetanus toxoid, mainly stimulating T-cells, was reduced but after incubation with an antigen-cocktail, stimulating both, T- and B-cells, was increased in patients during depression and during the free interval compared to controls. 3. The CD3(+)- and CD4(+)-cells were significantly enhanced in both groups of patients while the CD8(+)-cells showed no differences to the controls. The ratio CD4+/CD8+ was increased in patients, too, as described in some autoimmune disorders. 4. The suppressor cell activity was significantly reduced in the PWM-assay and in the PHA-assay. The mixed lymphocyte culture showed a tendency to reduced suppressor cell activity as well. 5. The results point to an immune activation and to a disturbed control of the proliferative activity in affective psychosis. A T-cell related defect, not compensated by an increased number of CD3+- and CD4+ -cells is discussed. 6. From our point of view, the conflicting results of psychoneuroimmunological investigations in depressive disorders may be related to etiologically different subgroups of depression. The diagnostic category of MDD is possibly one of the traps in psychoneuroimmunology.
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PMID:Investigations of the cellular immunity during depression and the free interval: evidence for an immune activation in affective psychosis. 825 83

The purpose of this study was to investigate the roles of decreased synthesis and increased consumption in the depression of arachidonic acid levels in renal cortex and glomeruli of rats with streptozotocin-induced diabetes mellitus. In diabetic rats, arachidonic acid was depressed 33.2% in renal cortex, 47.4% in liver and 66.1% in heart compared to values of control rats. delta 6 Desaturase activity was depressed in renal cortex, liver and heart of diabetic rats to 53.3, 55.5 and 63.7%, respectively, of control values. delta 5 Desaturase activity was also depressed 43.7, 55.5 and 47.6% in renal cortex, liver and heart of diabetic rats, respectively. In other rats the activities of five enzymes involved in the synthesis and esterification of arachidonic acid were measured in renal cortex and in isolated glomeruli. Both tissues from diabetic rats showed depressed activities of delta 5 and delta 6 desaturases, increased activities of long-chain acyl-CoA synthetase and 1-acyl-sn-glycero-3-phosphocholine acyltransferase and no change in the activity of elongase as compared to those in control tissues. Malondialdehyde, an end product of lipid peroxidation, was lower in the renal cortex of diabetic rats than in control rats, whereas beta-oxidation of linoleic acid and arachidonic acid were similar in diabetic and in control rats. Basal and stimulated prostaglandin E2 synthesis were significantly higher in isolated glomeruli from diabetic rats compared to those in control rats. In isolated tubules, prostaglandin E2 synthesis was similarly low in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Mechanism of decreased arachidonic acid in the renal cortex of rats with diabetes mellitus. 831 52

Polygraphic sleep recordings were compared between patients with primary major depression (MDD), patients with primary alcoholism and secondary MDD, and normals. Patients differed significantly from normals on the following measures: both patient groups showed short REM latency, and REM latency corrected, along with prolonged sleep latency. Secondary depressives differed from controls on several other measures: sleep onset time, total sleep time, delta sleep, REM percent, stage one sleep, stage three sleep, non-REM sleep, stage three and delta sleep in the first non-REM period. Prior research has shown a decrease in non-REM sleep and total sleep time in alcoholic patients who are not currently depressed, and short REM latency in patients with MDD. Thus, our findings suggest an additive effect of two disorders known to affect sleep: alcoholism and depression.
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PMID:A comparison of sleep EEGs in patients with primary major depression and major depression secondary to alcoholism. 843 59

The recently developed Tridimensional Personality Questionnaire (TPQ) was used to examine personality correlates in women diagnosed with premenstrual syndrome (PMS). The hypotheses were that the TPQ scores, specifically harm avoidance (HA), would be higher in PMS subjects than in the general population but lower than in depressed populations because major mood disorder is an exclusion from the PMS diagnosis; harm avoidance would have the strongest association with PMS, but other TPQ factors might characterize nondysphoric subgroups in the PMS population. The sample included 157 women who sought medical treatment and met clearly defined criteria for PMS. Two comparison groups of age-matched women with major depression (MDD, N = 20) and premenstrual exacerbation of major depression (MDD + PMS, N = 24) were also evaluated. TPQ scores were significantly higher for PMS subjects on all three dimensions compared with external normative TPQ data. The TPQ dimensions of HA and novelty seeking (NS) were modestly correlated with the premenstrual symptom scores. The HA dimension correlated with premenstrual depression and physical aches; high NS scores correlated with premenstrual food cravings, headache, and mood swings. As hypothesized, the HA scores were significantly higher in the comparison groups diagnosed with major depression; the NS and reward dependence (RD) dimensions did not differ between the PMS and MDD groups. PMS was associated with only modest nonnormative personality correlates, as assessed by the TPQ. Elevations of the HA and NS dimensions were associated with a tendency for the PMS to present with specific symptom patterns: depressive symptoms for the HA factor and food cravings and mood swings for the NS factor. Further research employing other assessment methods is needed to confirm these findings.
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PMID:Personality factors in women with premenstrual syndrome. 855 36

1. Major depressive disorder is recognized by different, frequently recurring patterns of signs and symptoms that are suggestive of specific subtypes of the disorder, including melancholic, atypical, and psychotic. 2. MDD occurs at younger ages, twice as frequently in women, in conjunction with other psychiatric disorders, in persons with a family history of mood disorders, and is associated with high use of medical services. 3. Research on the biological basis of depression has focused on neurotransmission, neuroendocrine dysregulation, and genetic transmission. 4. Advances in understanding MDD have important implications for nursing assessment, diagnosis, outcome planning, intervention, and evaluation with depressed clients.
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PMID:Advances in understanding major depressive disorder. 858 28

We assessed the prognostic utility of the TRH stimulation test by examining (a) the relationship between pre-treatment delta TSH and acute response to fluoxetine treatment, and (b) the relationship between the change in delta TSH (delta delta TSH value) after repeated TRH testing at 6 weeks of fluoxetine treatment and long-term outcome during maintenance fluoxetine or placebo therapy. 43 MDD patients were studied with sequential TRH tests at 6-week intervals. Fluoxetine 'responders' were defined as patients with a Hamilton Depression Rating Scale score < or = 7 by week 9 of treatment and who remained in remission at least 3 additional weeks. These subjects were then randomized to one of four fluoxetine/placebo treatment groups and long-term outcome assessed. Overall, there was no difference in the mean pre-treatment delta TSH values between acute fluoxetine responders and nonresponders. Moreover, we observed similar delta delta TSH values in patients who maintained long-term remission compared to those who relapsed during maintenance with either fluoxetine or placebo. In contrast to prior reports of an higher delta delta TSH value in long-term remitters, the present observation of similar mean delta delta TSH values patients with long-term remission compared to those who relapsed suggest a limited prognostic utility for the TRH stimulation test in MDD.
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PMID:TRH stimulation test as a predictor of acute and long-term antidepressant response in major depression. 879 Nov 85

We assessed the descriptive validity of DSM-III-R major depression (MDD), dysthymia (DD) and adjustment disorder with depressed mood (ADDM) by comparing the clinical profiles of 176 young male patients. The severity of depression increased progressively across the three diagnostic groups (ADDM < DD < MDD). Symptom presentation did not distinguish clearly between the diagnostic groups, even though somatic symptoms were more frequent among MDD patients. The prevalence of personality disorders was much higher (43%) among DD patients than among MDD (22%) and ADDM (15%) patients. The lifetime prevalence of suicide attempts differed in the three diagnostic groups (MDD 27%, DD 17%, ADDM 4%). Assessment of Axis II comorbidity and suicidal behavior can improve the diagnostic distinction between these DSM-III-R depressive illnesses.
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PMID:Symptom profile, Axis II comorbidity and suicidal behaviour in young males with DSM-III-R depressive illnesses. 882 24

Neuroanatomical and physiological imaging provide unprecedented opportunities to examine the biological substrates of major mental disorders such as late life major depression (MDD). Studies using positron emission tomography (PET) and single photon emission computed tomography (SPECT) demonstrate focal and global abnormalities in patients with MDD when compared with controls. Magnetic resonance imaging (MRI) allows us to examine specific neuroanatomical perturbations in depression and to study the impact of comorbid medical disorders on brain structure and function. These technologies have the potential to provide biological information critical to a better understanding and conceptualization of the neuroscientific basis and treatment of the major mental disorders in late life.
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PMID:Neuroimaging in late-life mood disorders. 905 17

This study examined the relationship between a history of trauma and the features and persistence of major depression (MDD) in patients with anxiety disorders. The study found that, among 408 patients with an anxiety disorder and past or current MDD, those patients who reported a history of trauma had a greater number of previous episodes of major depression than those patients without trauma histories. Also, of 174 patients with an anxiety disorder and current major depression, patients who reported histories of trauma, compared with patients who did not report such experiences, were less likely to remit from MDD over a 5-year period. Results suggest that a history of trauma is a risk factor for chronic depression.
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PMID:Trauma and chronic depression among patients with anxiety disorders. 908 99

In a two-stage epidemiological study 5686 randomly selected 8 to 9-year-old children were screened using the CDI (Children's Depression Inventory), of whom 418 were questioned with the DISC-C1 (Diagnostic Interview Schedule for Children). According to DSM-III criteria the prevalence of MDD (Major Depressive Disorders) was 0.48% and of DD (Dysthymic Disorder) 0.06%. The prevalence rates did not change when DSM-III-R and DSM-IV criteria were employed. Fifteen children reported suicidal thoughts but according to DSM-III criteria only 1 of these children was depressed. Duration and frequency of depressive symptoms are essential for making a diagnosis of depressive disorder by the DSM-III, but children's reliability in reporting them is questionable. Omitting the duration and frequency of symptoms from the DSM-III criteria raised the prevalence of MDD to 4.0% and of DD to 2.2%. Eight of the children with suicidal thoughts were depressed. By the adapted DSM-III-R and DSM-IV criteria the prevalence rate of MDD was 4.0% and of DD 9.7%.
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PMID:Should depression in young school-children be diagnosed with different criteria? 911 42


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