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

The relationship between pain perception and emotional states is well known. However, the nature of this relationship and how different emotional states affect sensory and cognitive dimensions of pain remains uncertain. Results from experimental investigations are often contradictory, which may be due to methodological difficulties in inducing pain and monitoring physiological responses. In addition, most studies have focused on a single emotion, and data on the relative effects of different emotional states are lacking. In the present study we attempted to eliminate some of these methodological problems. Laser evoked potentials were used as a quantitative correlate to pain perception and were measured in 12 highly hypnotically susceptible subjects during seven conditions: (a) a prehypnotic baseline condition; (b) a neutral hypnotic control condition; (c-e) hypnotically recalled anger, fear, and depression in randomized order; (f) a hypnotically recalled happy condition, and (g) a posthypnotic awake control condition. The pain evoked potentials were significantly decreased in the angry condition and significantly increased in the depressed condition compared with baseline. No differences could be detected for either the happy or the fear-related condition compared with the baseline or neutral hypnotic condition. A significant positive correlation between the subjective intensity of depression and the increase in evoked potentials was found, but none for the other three emotions. The results support earlier findings that clinical depression is related to increased pain perception, and findings that the expression of anger can inhibit the experience of pain.(ABSTRACT TRUNCATED AT 250 WORDS)
 ...
PMID:The effect of hypnotically induced emotional states on brain potentials evoked by painful argon laser stimulation. 180 50

There is a lack of information about the precise strength of the relationship between chronic pain and depression. In a prior study, women with temporomandibular pain and dysfunction syndrome (TMPDS) had much higher scores than did controls on a measure of nonspecific psychological distress. The question arose as to whether rates of clinical depression are also unusually high in TMPDS patients. Their former treating clinician rates cases for likely lifetime presence or absence of depression. A subset of those rated as likely depressed then had their diagnoses verified independently through a structured clinical interview by a psychiatrist and clinical psychologist. Results revealed a minimum lifetime prevalence rate for major depression of 41%. A rate of this magnitude in TMPDS cases is clearly much higher than would be found for women of similar background in the general population.
 ...
PMID:Is major depression comorbid with temporomandibular pain and dysfunction syndrome? A pilot study. 180 30

The analysis of GABA levels in plasma of 28 normal persons and 25 patients with endogenous depression did not show any significant differences between both groups. Neither did we observe any differences in GABA levels in patients treated with antidepressant drugs before and after treatment, during a remission or a depression, in responders or nonresponders to treatment. The study did not indicate any results pointing to a role of gabaergic mechanisms in the pathophysiology of endogenous depression or in the action of tricyclic antidepressant drugs.
 ...
PMID:[GABA levels in the plasma of patients with endogenous depression and during the treatment with thymoleptics]. 182 76

Evaluation of a group of 250 patients with endogenous depression in the course of affective illness suggest that reactions of patients to tricyclic antidepressants in an early phase of the treatment may supply interesting prognostic data. Improvement of mental state (reduction of the Hamilton Depression Scale score) on the seventh day and especially on the 14th day of treatment points to a high probability of positive response to the treatment. Lack of such a reaction or worsening of the mental state in the early phase of pharmacotherapy (on the seventh day) frequently is an early sign of lack of positive response to the treatment. The survey considered following antidepressant drugs: amitriptyline, noxiptilin, clomipramine, dibenzepin and desipramine.
 ...
PMID:[Early results of the treatment of endogenous depression with tricyclic antidepressive drugs and prognosis of their effectiveness]. 182 73

Studies performed on a group of 27 patients with endogenous depression demonstrated that changes of cognitive functions following sleep deprivation may reveal a prognostic potential for results of pharmacological treatment of depression. Worsening of memory following sleep deprivation was more frequently observed in a subgroup of nonresponders. Greater improvement of concentration and increased task mobilization were noticed in a subgroup which positively responded to the antidepressant treatment. Patient's age, sex, self-rating of depression intensity or baseline level of ability to memorize, to concentrate attention, to perform tasks did not exhibit any predictive value.
 ...
PMID:[Changes in cognitive functions after sleep deprivation as a prognostic indicator of drug therapy of endogenous depression]. 182 85

The effects of antidepressant drugs on phase switching was studied in 602 individuals treated for endogenous depression. Altogether 869 depressed phases were evaluated retrospectively--there were 470 depressed phases in the course of bipolar affective disorder and 399 of unipolar disorder or with the undefined course. Switching from depression to mania was observed in patients with bipolar disorder--in 27.9% of cases of bipolar depression and in 21.5% of bipolar patients. Most frequently the switching was observed during management of depressed phase with amitriptyline (24.4% of treatments with this drug). The results point to a role of cholinergic system in pathophysiology of switching out of depression into mania during treatment with antidepressant drug.
 ...
PMID:[Transition from the depressive stage to the manic stage during the treatment with antidepressive drugs]. 182 82

Studies conducted on a group of 38 patients with endogenous depression demonstrated that a reaction to sleep-deprivation presenting as improved well-being has a significant predictive potential for treatment with imipramine. Patients who displayed the reaction also significantly more frequently displayed improvement of clinical course (remission; good response). Risk of switching from depression to mania also increased among these patients. Patients responding to sleep-deprivation with improved well-being belonged mainly to the bipolar affective disorder. Neither clinical manifestations of depression, nor the number of relapses, nor the duration period of the disorder, nor basic demographic patterns did show distinct features; nor did they differ significantly from patients who did not respond to sleep-deprivation with improved well-being.
 ...
PMID:[Reaction to sleep deprivation as a prognostic factor in the treatment of endogenous depression]. 182 84

Approximately 50% of patients with Parkinson's disease experience clinical depression. Neurotransmitter deficits in depression and Parkinson's disease suggest a common lesion may be responsible for this high incidence. In addition to similar psychological profiles, the clinical features of Parkinson's disease and depression likewise overlap making the distinction difficult. Differentiating these two diseases is very important, as each is treatable. The neuroscience nurse is in a unique position to evaluate the patient with Parkinson's disease for signs and symptoms of depression.
 ...
PMID:Depression in Parkinson's disease. 183 80

The effects of repeated treatment of rats with desipramine on 5-HT mechanisms within the nucleus accumbens (NAS) have been studied in a functional model. Local microinjections of 5-HT, quipazine as well as 5-HT1A receptor agonist buspirone, 8-OH-DPAT and NDO-008, inhibited rat locomotor activity in the open-field test. The effect of 5-HT and buspirone was blocked by serotonergic receptor antagonists methysergide and cyanopindolol, respectively. Chronic, but not acute treatment of rats with desipramine (10 mg/kg, PO, twice a day for 21 days, tests were performed 24 h after the last dose) significantly attenuated behavioral depression after 5-HT and quipazine microinjections, while the effect of buspirone was left unchanged. On the basis of present data, it may be concluded that whereas both accumbens 5-HT1A and 5-HT2 receptors appear to be important to regulation of animals' motility, only 5-HT2 receptors seem to be the most likely targets of antidepressive treatment. These data, along with previously reported changes in limbic noradrenergic and dopaminergic activity after antidepressive treatment, may explain the energizing influence of drugs and electroconvulsive shocks on psychomotor retardation, a part of endogenous depression.
 ...
PMID:Serotonergic mechanisms in the nucleus accumbens affected by chronic desipramine treatment. 183 82

The prevalence of depressive symptoms, suicidal ideation and their relationship to perceived health problems and social relations were examined in a sample of 605 Swedish adolescents aged 13-18 years. Short-term stability of depressive symptoms and the turnover rate from a nondepressed to a depressed state were examined for subsamples of 36 depressed and 71 nondepressed subjects, respectively, who were retested after 4 to 6 weeks. Using Beck's criteria for clinical depression, 9% of the adolescents experienced moderate to severe depressive symptom levels. However, a more conservative estimate, 4%, was obtained when DSM-III criteria for major depressive disorder were applied. Approximately 3% of the adolescents had pronounced suicidal ideation and had made at least one previous suicide attempt. There was a tendency for boys to show more stable depressive symptoms and suicidal ideation than girls. Furthermore, a set of 5 psychosocial variables concerning the students' satisfaction with their school and leisure time, conflictual level at home and number of close friends predicted 31% of the variance of the subjects' total depressive symptom scores. Although a 32% decrease of depressive symptoms was noted for the depressed subsample of adolescents, 44% of these subjects continued to experience moderate to severe depression at follow-up.
 ...
PMID:Short-term stability of depressive symptoms and suicide attempts in Swedish adolescents. 185 32


<< Previous 1 2 3 4 5 6 7 8 9 10