What is new in bipolar disorder and major depressive disorder in children and adolescents.
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Adolescent↗
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Results for “Depressive Disorder”
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Influences on adolescent substance dependence: conduct disorder, depression, attention deficit hyperactivity disorder, and gender.
OBJECTIVE: In adolescents, conduct disorder (CD), attention deficit hyperactivity disorder (ADHD), and depression are frequently comorbid with substance dependence (SD). We hypothesized that the prevalence and severity of CD, major depressive disorder (MDD), and ADHD would differ by gender, and that these conditions would associate differentially with severity of SD in males and females. METHODS: We examined these issues, using standardized diagnostic interviews, in 285 male and 82 female adolescents referred for comorbid CD and SD. RESULTS: Males and females did not differ significantly in severity of substance involvement, MDD, or ADHD, but males had more severe CD. MDD severity was the only variable significantly associated with SD severity for females, while for males, severity of CD combined with MDD and ADHD was significantly associated with SD severity. CONCLUSIONS: Among referred adolescents, CD, MDD, and ADHD may all be important concomitants of SD in males, while in females, depression may be the primary variable related to SD.
Adolescent↗
Relation of intelligence and religiosity to depressive disorders in offspring of depressed and nondepressed mothers.
OBJECTIVE: To examine the relation of IQ and religiosity to depressive disorders in adolescents who varied with respect to the chronicity of their mothers' depression history. METHOD: Participants were 240 adolescents first evaluated when they were in 6th grade and then annually for 6 years. Adolescents' depressive diagnoses were assessed initially with the Schedule for Affective Disorders and Schizophrenia for School-Age Children and then annually with the Longitudinal Interval Follow-up Evaluation for children. RESULTS: IQ, but not religiosity, moderated the relation between chronicity of maternal depression and depressive disorders in adolescents. For children of mothers with no or less chronic depression, higher IQ was associated with a lower likelihood of depression; in contrast, for children of mothers with a history of more chronic depression, higher levels of IQ were significantly associated with a greater likelihood of depression. Depressive episodes during grades 7 through 11 predicted lower religious attendance during 12th grade, controlling for prior religiosity. There also was a marginally significant trend for religious attendance in 6th grade to predict lower odds of developing depressive diagnoses during grades 7 through 12. CONCLUSIONS: These results highlight the complex relation between IQ and depression and indicate the possibility of a bidirectional relation between religious attendance and adolescent depression.
Adolescent↗
Perceived parental characteristics of patients with obsessive compulsive disorder, depression, and panic disorder.
It has been hypothesized that parents of patients with obsessive compulsive disorder exhibit specific traits. 320 consecutive inpatient admissions who met criteria for OCD, depression, and panic disorder checked a list of adjectives to describe their parents. Patients with OCD were 1) less likely to perceive their mothers as disorganized than depressives, 2) more likely to perceive their mothers as overprotective than depressives and 3) less likely to perceive their fathers as demanding than patients with panic.
Adolescent↗
Well-being and life satisfaction in generalized anxiety disorder: comparison to major depressive disorder in a community sample.
BACKGROUND: In most settings, generalized anxiety disorder (GAD) is highly comorbid with major depressive disorder (MDD). This raises uncertainty about the clinical relevance of GAD as a distinct diagnostic entity. The demonstration of functional impairment attached to GAD, independent of that attributable to MDD, would support the importance of GAD as a separate diagnostic category. METHODS: The Ontario Health Survey Mental Health Supplement, a survey of more than 8000 residents aged 15-64 of the Canadian province of Ontario, used the University of Michigan Composite International Interview Schedule (also used in the US National Comorbidity Survey) to assign DSM-III-R diagnoses. Several indicators of disability and quality of life were included. Our analytic strategy was to compare these indices in persons with and without GAD, stratified by MDD comorbidity, and adjusting for the effects of relevant sociodemographic factors (e.g., social class, age, gender) and dysthymia. Odds ratios (ORs) are reported; SUDAAN was used to adjust for the sampling framework. RESULTS: GAD was highly comorbid with MDD on both a lifetime and past-year basis. Both past-year and lifetime MDD and GAD were associated with an increased likelihood of low overall perceived well-being. Both lifetime MDD and GAD were associated with dissatisfaction in one's main activity and with family relationships. LIMITATIONS: Other comorbid Axis I or II conditions might be confounders with impairment; a lower rate of GAD than in some prior surveys bears consideration. CONCLUSIONS: These observations confirm that GAD is associated with an increased likelihood of poor global well-being and life satisfaction, beyond that associated with MDD. Given the chronicity of GAD relative to the more often episodic course of MDD, the long-term functional benefits of treating GAD may be substantial.
Adolescent↗
[Integrated treatment strategies in panic disorder with agoraphobia and depressive disorder].
Two patients suffering from a panic disorder (agoraphobia) as well as a depressive disorder and alcohol abuse showed marked improvement when given a combination of pharmacotherapy and behavior therapy. The feasibility of this combination treatment in the context of understanding both the theory and therapy of panic disturbances is discussed in these two case histories.
Adult↗
The effects of anxiety, substance use and conduct disorders on risk of major depressive disorder.
BACKGROUND: Major depressive disorder (MDD) is highly co-morbid with other Axis I disorders, which commonly precede its onset. We sought to determine the level and periods of risk for MDD posed by prior or co-occurring psychiatric disorders. METHOD: Using retrospective data from a longitudinal, population-based sample of 2926 male and 1929 female adult twin subjects, we predicted the hazard rates for MDD from a Cox proportional hazards model with same-year or prior onsets of co-morbid Axis I disorders as time-dependent covariates. RESULTS: All axis I disorders studied (generalized anxiety disorder, panic disorder, phobia, alcohol dependence, psychoactive substance use disorders and conduct disorder) significantly predicted increased risk for developing MDD. The highest hazard rates occurred for MDD onsets that co-occurred with those of the co-morbid disorder. However, the risk for onset of MDD subsequent to that of prior disorders is also significantly increased and remains relatively unchanged over time. Although the risk for onset of MDD is significantly higher in women than men, this was not explained by gender differences in prior disorder prevalence or increased sensitivity in women to the effects of prior disorders on risk for depression. CONCLUSIONS: Prior psychiatric disorders are significant risk factors for the development of MDD, independent of the length of the intervening period between the onset of the first disorder and that of MDD.
Adult↗
Mean Beck Depression Inventory-II scores of outpatients with dysthymic or recurrent-episode major depressive disorders.
The Beck Depression Inventory-II, published in 1996, was administered to 100 adult outpatients (Age M=43.1 yr., SD=15.6) who were diagnosed with a recurrent-episode Major Depressive Disorder and 100 outpatients (Age M=42.8 yr., SD=15.7) who were diagnosed with a Dysthymic Disorder. Each diagnostic group was composed of 50 men and 50 women who did not have a comorbid depressive disorder. The mean Beck Depression Inventory-II total score and the mean number of symptoms endorsed by the outpatients with a Major Depressive Disorder were significantly (ps<.001) higher than those for outpatients with a Dysthymic Disorder. The usefulness of the Beck Depression Inventory-II was discussed in helping clinicians discriminate between these two unipolar disorders.
Adult↗
Beneficial effects of the antiglutamatergic agent riluzole in a patient diagnosed with obsessive-compulsive disorder and major depressive disorder.
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Antidepressive Agents↗
Substance use disorders among inpatients with bipolar disorder and major depressive disorder in a general hospital.
The prevalence and type of substance abuse and dependence were determined for 49 patients with mood disorders on a general hospital psychiatric unit. A standardized diagnostic interview was conducted with a high value of inter-rater reliability. This study found that 18.4% of mood disorder inpatients met the diagnostic criteria for psychoactive substance use disorders by DSM-III-R. Sedatives-hypnotics-anxiolytics was the most common substance use disorder (10.2%), followed by alcohol (6.1%). Patients with major depression had a higher rate of comorbidity with substance use disorders than did the bipolar disorder patients (p = 0.011). The prevalence of sedatives-hypnotics-anxiolytics use disorder among major depression patients was 35.7%, which was higher than that among bipolar disorder patients (0%). Male patients had a significantly higher percentage of substance use disorders than did female patients (p = 0.054). Seventy-seven percent of the patients with a dual diagnosis of mood and substance use disorder were not diagnosed as having substance use disorders by psychiatrists in charge.
Adolescent↗
A preliminary study of sleep-disordered breathing in major depressive disorder.
BACKGROUND AND PURPOSE: Individuals with obstructive sleep-disordered breathing (OSDB) commonly report symptoms of depression; however, the percentage of individuals with major depressive disorder (MDD) who experience OSDB is less clear. This study aimed to examine OSDB in a sample of individuals with MDD, unselected for sleep-related complaints, along a continuum of ventilatory and hypoxic abnormalities. PATIENTS AND METHODS: The overnight sleep-related breathing of 19 individuals with MDD and 15 non-depressed controls was recorded using an unattended nasal pressure-based home sleep monitoring device. The device recorded nasal airflow, breathing effort, heart rate, oxygen saturation, and body position. RESULTS: The two groups varied significantly on three sleep-related breathing variables: major flow-limitation events, major flow-limitation events accompanied by a desaturation, and average saturation throughout the evening; and these groups approached significance on minor flow-limitation events accompanied by a desaturation and average number of desaturations throughout the evening. Sleep-related breathing variables predicted accurate grouping in 81.3% of those with MDD and 80.6% of the non-depressed participants. CONCLUSIONS: These results suggest that OSDB may play a more important role in MDD than previously recognized. OSDB may contribute to or exacerbate the condition of someone predisposed to MDD, and the treatment of OSDB may ameliorate or possibly prevent depressive symptoms.
Adult↗
Dysregulated adult hippocampal neurogenesis in major depressive disorder.
Major depressive disorder (MDD) is associated with reduced hippocampal volume, altered connectivity and negative memory bias, suggesting disrupted hippocampal plasticity. Dysregulated adult hippocampal neurogenesis is a potential contributor, but its relevance in humans and role in MDD remain unclear. Here we investigated the molecular basis of hippocampal dysfunction in nonmedicated individuals with MDD by integrating analyses of neurogenic trajectories, cell-type- and subfield-specific gene expression, chromatin accessibility and protein expression. We identify a neurogenic lineage in the adult human hippocampal subgranular zone and provide evidence for a stalled neurogenic process in MDD, associated with transcriptional regulation, stress-related reprogramming and interferon signaling across developmental stages. Excitatory and inhibitory neurons show dysregulation of transcription factor networks affecting cell states. Cellular stress, excitatory-inhibitory imbalance, impaired synaptic plasticity, reduced metabolic capacity and immune activation, underlie impaired neurogenesis and reduced hippocampus circuit plasticity. Findings indicate genetic and epigenetic regulation of gene expression in MDD, and overlapping pathogenetic mechanisms with autoimmune, neurodevelopmental and neurodegenerative diseases. This work provides a new understanding of the pathogenesis of hippocampus-dependent cognitive symptoms in MDD and suggests potential therapeutic targets.
Journal Article↗
Is bipolar II disorder misdiagnosed as major depressive disorder in children?
OBJECTIVES: To estimate the lifetime prevalence of bipolar II disorder in children and adolescents presenting with DSM-IV major depressive disorder (MDD). METHODS: Sixty-one consecutive subjects aged < or =18 years attending the outpatient services of the Child and Adolescent Psychiatric (CAP) services of the National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India with a diagnosis of MDD were evaluated using the Missouri Assessment of Genetics Interview for children (MAGIC). Two psychiatrists, one of whom was a child psychiatrist diagnosed hypomania by consensus. RESULTS: Twelve children had a past episode of hypomania (20%), which was hitherto undiagnosed clinically. LIMITATIONS: We recruited subjects from a psychiatric hospital, thus limiting the generalizability of the finding. Sample size was relatively small and assessments were cross-sectional. CONCLUSIONS: : Our study shows that bipolar II disorder is often misdiagnosed as MDD in children. The study also highlights that the chance of diagnosing bipolarity is enhanced by using semi-structured interview in routine clinical practice.
Adolescent↗
Clinical evaluation of a self-rating scale for depressive disorder in childhood (Depression Self-Rating Scale).
The many conceptual and methodological difficulties involved in evaluating depression rating scales for children are discussed. A clinical validation of the Depression Self-Rating Scale for Children (DSRSC) is described. The instrument is easy to use and has a predictive value comparable with that of a psychiatric global rating of depressed appearance and history of depression obtained at interview. There was confirmation that the DSRSC can tap an internal dimension of depression and that children are able to evaluate their feeling states. An examination of misclassified children pointed to diagnostic overlap and some unreliability of diagnosis by clinicians.
Adolescent↗
[New selective monoamine oxidase inhibitors in the treatment of depressive disorders].
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Depressive Disorder↗
The prevalence of depressive disorders and the distribution of depressive symptoms in later life: a survey using Draft ICD-10 and DSM-III-R.
The point prevalence of depressive disorders was estimated in a sample of persons aged 70 years and over, which included both those living in the community and those in institutional settings. Lay interviewers administered the Canberra Interview for the Elderly to the subjects and their informants. The point prevalence of depressive episodes as defined by the Draft ICD-10 diagnostic criteria was 3.3%. The rate for DSM-III-R major depressive disorder was 1.0%. The latter prevalence rate is similar to those reported elsewhere for the elderly. Evidence is accumulating that older persons may indeed have low rates for depressive disorders at the formal case level. Possible reasons for this finding are offered. A scale for depressive symptoms, based exclusively on those specified in Draft ICD-10 and DSM-III-R, showed that the elderly do experience many depressive symptoms. Contrary to expectation, these did not increase with age. The number of depressive symptoms was correlated with neuroticism, poor physical health, disability and a history of previous depression. Attention now needs to be directed to the clinical significance of depressive symptoms below the case level in elderly persons.
Age of Onset↗
Tachyphylaxis in unipolar major depressive disorder.
BACKGROUND: Major depressive disorder is usually a recurring illness, and maintenance treatment is used to forestall or prevent recurrent episodes of depression. This study describes recurrence of major depression despite maintenance pharmacotherapy, termed tachyphylaxis. METHOD: The study sample consisted of 103 subjects who participated in the NIMH Collaborative Depression Study, a multicenter longitudinal observational study of the mood disorders. Subjects diagnosed with unipolar major depressive disorder according to Research Diagnostic Criteria were enrolled from 1978-1981 and prospectively followed for up to 20 years. As an observational study, treatment was recorded but not controlled by anyone connected with the study. Subjects were selected for the present study if at some point during follow-up they received antidepressant medication for treatment of an episode of major depressive disorder, recovered from this episode, and subsequently received maintenance pharmacotherapy. Some subjects were successfully treated for multiple episodes of major depressive disorder and then received maintenance medication after each of these episodes, resulting in multiple maintenance treatment intervals. Data were collected using the Longitudinal Interval Follow-Up Evaluation, and mixed-effects logistic regression was used to test the association of sociodemographic and clinical variables with tachyphylaxis. RESULTS: For the 103 subjects, there were 171 maintenance treatment intervals in which a subject received maintenance pharmacotherapy after having recovered from an episode of major depressive disorder. The median duration of maintenance treatment was 20 weeks. Tachyphylaxis occurred during 43 (25%) of these 171 maintenance treatment intervals. The subtype of melancholic (endogenous) major depressive disorder significantly elevated the risk of tachyphylaxis during the subsequent maintenance treatment interval. CONCLUSIONS: Despite the use of maintenance pharmacotherapy, major depression recurs in a considerable number of patients. Improved prophylaxis for these patients requires other treatment strategies based upon a greater understanding of recurrence.
Adult↗
Depressive disorders and suicide attempts in injecting drug users with and without HIV infection.
Injecting drug users (IDUs) seeking treatment for drug dependence were selected in two groups according to their HIV (human immunodeficiency virus) status. Thirty HIV-positive and 30 HIV-negative patients were submitted to a structured interview to assess psychiatric disorders. Initially, depressive disorders, suicide attempts and disorders related to substance use were analyzed. The results showed that the diagnosis of cocaine dependence was more frequent among HIV-infected patients than in the non-infected. Being HIV-positive was not associated with higher prevalence of depression. Suicide attempts were frequent in this sample, but the frequencies were equal in both groups. Concluding, the results did not show any association between the HIV-positive serology and depressive disorders and suicide attempts when IDUs are compared to the control group, also IDUs but HIV-negative.
Adolescent↗