Mood disorders in eating disorder patients: Prevalence and chronology of ONSET.

OBJECTIVES: In a clinical population, we estimated the frequency of mood disorders among 271 patients suffering from Anorexia Nervosa (AN) and Bulimia Nervosa (BN) in comparison to a control group matched for age and gender. METHOD: The frequency of mood disorders was measured using the Mini International Neuropsychiatric Interview (MINI), DSM-IV version. RESULTS: Mood disorders were more frequent among eating disorder (ED) patients than among controls, with a global prevalence of the order of 80% for each ED group. The majority of the mood disorders comorbid with ED were depressive disorders (MDD and dysthymia). The relative chronology of onset of these disorders was equivocal, because mood disorders in some cases preceded and in others followed the onset of the eating disorders. LIMITATIONS: Our sample was characterized by patients with severe ED and high comorbidities, and thus do not represent the entire population of AN or BN. This also may have resulted in an overestimation of prevalence. CONCLUSION: Mood disorders appear significantly more frequently in patients seeking care for ED than in controls. These results have implications for the assessment and treatment of ED patients, and for the aetio-pathogenesis of these disorders.

Comorbidity studies of eating disorders and mood disorders. Critical review of the literature.

OBJECTIVE: We conducted a critical literature review of studies assessing the prevalence of mood disorders (MD) in subjects with eating disorders (ED; anorexia nervosa and bulimia nervosa). In the first part of this article, we discuss methodological issues relevant to comorbidity studies between ED and MD. In the second part, we summarize the findings of these studies in light of the methodological considerations raised. METHOD: A manual computerised search (Medline) was performed for all published studies on comorbidity between ED and MD. In order to have sufficiently homogeneous diagnostic criteria for both categories of disorders, this search was limited to articles published between 1985 and 2006. RESULTS: Too few studies include control groups, few studies compared diagnostic subgroups of ED subjects, and results are scarce or conflicting. DISCUSSION: The results are discussed in the light of the methodological problems observed. The implications when reviewing the results of published studies and planning future research are set out.

[Are anxiety or depressive disorders more frequent among one of the anorexia or bulimia nervosa subtype?]. / La fréquence des troubles anxio-dépressifs diffère-t-elle entre les types diagnostiques d'anorexie mentale et de boulimie?

UNLABELLED: Our objective was to answer the following question: are there differences between diagnostic groups of eating disorders (ED) for the prevalence of depressive and anxiety disorders, when clinical differences between the groups are taken into account (ie age of subjects, ED duration, inpatient or outpatient status, and Body Mass Index)? METHOD: We evaluated the frequency of anxiety disorders and depressive disorders in 271 subjects presenting with a diagnosis of either anorexia nervosa or bulimia, using the Mini International Neuropsychiatric Interview (MINI), DSM IV version. We compared the prevalences between sub-groups of anorexics (AN-R and AN-BN), between sub-groups of bulimics (BN-P and BN-NP) and between anorexics and bulimics while adjusting for the variables defined below. RESULTS: Current or lifetime comorbidity of anxiety and depressive disorders did not differ between AN-Rs and AN-BNs, nor between BN-Ps and BN-NPs. Only current diagnoses of agoraphobia and obsessive-compulsive disorder were significantly more frequent in anorexics than in bulimics. CONCLUSION: The greater frequency of comorbidity between obsessive-compulsive disorder and AN compared to BN, already well documented, is not questioned. The remaining anxiety disorders are equally frequent among all the diagnostic types of ED.

[Selective serotonin reuptake inhibitors in major depressive disorder in children and adolescents (ratio of benefits/risks)]. / Indication des inhibiteurs de la recapture de la sérotonine au cours d'un épisode dépressif majeur chez l'enfant et l'adolescent (bénéfices/risques).

UNLABELLED: Major depressive disorder in children and adolescents is associated with high risk of suicide and persistent functional impairment. While psychological treatments are used as a first line treatment in mild and moderately severe depression in this age group, the number of prescriptions for antidepressant medication (SSRI) has grown in recent years. Recently, FDA and MHRA advised that most of SSRI should not be used to treat MDD under the age of 18 years. They may increase the risk of suicidal thoughts and self harm. We reviewed the recent literature on efficacy and suicide risks of SSRI in depressed young people. Conflicting findings of SSRI efficacy have been reported in clinical studies. The discrepancies could be related to the heterogeneous samples and the absence of a standard definition of treatment effectiveness. In randomised placebo-controlled antidepressant clinical trials (RCT), the assessment of treatment effectiveness is commonly made with the CDRS-R (improvement of 20% or 30% or 40%) and CGI. SSRI demonstrated significantly, but modest, improvement compared with placebo in CGI score of 1 or 2: 10% more for sertraline, 16.8% more for paroxetine and between 16 to 24% more for fluoxetine. In adults, RCT studies have shown placebo response rates of 30% to 50%, drug response rates of 45% to 50% and drug-placebo differences of 18% to 25%. The highest placebo response rates, in young people, may be related to the highly selected group not representative of the general population of depressed patients and/or to the high youths' sensibility of psychotherapy. Patients participating in antidepressant clinical trials have a low BDI and CDI in Emslie's study for example (2002). In adults, previous reports suggest that SSRI use is associated with increased suicidal risk. But the analyse of 48 277 depressed patients participating in RCT for nine FDA approved antidepressants fail to support an overall difference in suicide risk between antidepressants (SSRI) and placebo treated subjects. An inverse relationship between regional change in use of antidepressants (increased) and suicide (decreased) is found in young -people in United States from 1990 and 2000. We can not draw a conclusion from few studies with few -participants. None suicide have been reported in pharmacological studies. And the link between "suicidality" and MDD can not be excluded. The instruments of assessment in depressed young patients are based on extensions of adult procedures. Whereas clinical picture of MDD in children, adolescents and adults have some differences. Depressed youngsters have more pronounced mood lability. Depressed adolescents have more anhedonia than depressed children. Future investigations into the efficacy and safety of treatments for children and adolescents depression should use specific instruments directly built on phenomenological and clinical picture of depressed children and adolescents. Comparison studies of pharmacotherapy, specific psychotherapies (not only CBT) and combined therapies are necessary to identify the adolescents who will benefit the most from specific or combined therapies. Further studies into the factors that influence treatment outcome including clinical picture (clinical dimensions, severity, duration, co morbidity), genetic factor, age, and i-llness course may help identify appropriate treatments for children and adolescents with MDD. Studies should include patients more severely ill, with associated psychiatric troubles, treatment resistance, history of relapses... In clinical studies, the link between "suicidality" and some clinical dimensions (which take part in clinical picture or not) must be analysed by assessing anhedonia, hopelessness feel, impulsive trait, borderline personality, familial inter-action, biological indices. New treatment should be expand and their efficacy and safety must be study: St John's worth, Bright light therapy, Trans-cranial Magnetic Stimulation. IN PRACTICE: suicide and MDD have a strongest relation and it must be investigate syste-matically during the course of MDD. The suicide risk increases in the context of past history of suicide attempts, hopelessness, psychosis, impulsivity traits, substance abuse, familial dysfunction, life events, open access of arms. The use of SSRI in depressed children and adolescents is also the question of the quality and the support of the consultant and the mode of the prescription.

[Comorbidity between eating disorders and anxiety disorders: results]. / Comorbidité des troubles du comportement alimentaire et des troubles anxieux. Deuxième partie: résultats.

Taking into account the methodological problems underlined in the first part of this paper, the current review aims to answer three questions: 1) Is there convincing evidence that anxiety disorders (AD) are more frequent among women with eating disorders (ED) than among women from the community? 2) Is there convincing evidence that prevalence of AD differs across diagnostic types or subtypes of ED? 3) What is the chronology of appearance of the two disorders? We performed a manual and computerized search (Medline) for all published studies on comorbidity between ED and AD (1985-2002 period), and selected the most relevant studies. An increased risk for AD in subjects with ED has been shown in several community studies, but studies conducted in referred subjects have led to inconstant findings. The answer to the questions remains uncertain, because too few studies included control groups and few studies have compared diagnostic subgroups of ED subjects, with scarce or conflicting results.

[Comorbidity between eating disorders and anxiety disorders. First part: methodological review]. / Comorbidité entre les troubles du comportement alimentaire et les troubles anxieux. Première partie: revue méthodologique.

UNLABELLED: The objective of our work is to conduct a critical literature review on studies assessing the prevalence of anxiety disorders (AD) in subjects with eating disorders (ED) (anorexia nervosa and bulimia nervosa). In the first part (this paper), we will discuss methodological issues relevant to comorbidity studies between ED and AD. METHOD: We performed a manual and computerised search (Medline) for all published studies on comorbidity between ED and AD, limiting our search to the 1985-2002 period, in order to get sufficiently homogeneous diagnostic criteria for both categories of disorders (most often RDC, DSM III, DSM Ill-R, or DSM IV criteria). RESULTS: We review methodological issues regarding population sources, general methodological procedures, diagnostic criteria for ED and AD, diagnostic instruments, age of subjects and course of the eating disorder. DISCUSSION: We give implications for reviewing the results of published studies and planing future research.

[Alexithymia, depression and drug addiction]. / Alexithymie et toxicomanie:

Alexithymia is a multidimensional concept associating an emotional component focused on the difficulty in identifying and describing feelings and a cognitive one centred on the use of a concrete and poorly introspective way of thinking. Alexithymia can be assessed by self-assessment instruments and in particular by the 20 items version of the Toronto Alexithymia Scale (TAS-20). Depressive disorders have complex relationships with the construct of alexithymia and there exist few experimental works on the subject. Epidemiological studies frequently raise an overlap between alexithymia and depression, in particular in the context of addiction. The main aim of this study was to confirm the high prevalence of alexithymia among drug addicted patients taking into account socio-demographic variables (sex, age, social and economic categories). The second aim of the study was to investigate the relationships between alexithymia and depression among drug addicted patients. A sample of 128 drug addicted patients answering DSM IV criteria of dependence to a psycho-active substance (alcohol excluded) was paired according to socio-demographic variables to a control sample of 128 normal subjects. Diagnostic assessment was made using the Mini International Neuropsychiatric Interview (MINI). Alexithymia and depression were assessed with the TAS-20 and with the short version of the Beck Depression Inventory (BDI-13). The results confirm the high prevalence of alexithymia among drug addicted patients (43.5%) compared to controls (24.6%). This difference is based namely on the emotional component of alexithymia, the cognitive component failing to show any difference between the two samples. Moreover, alexithymia appears to be independent from socio-demographic variables in our sample of drug addicted patients; 66.4% of drug addicted patients presents a depressive symptomatology (which is significantly more important in female patients), compared to 26% of the controls. Studies using the TAS and the BDI with 21 items have shown that from 10 to 20% of the variance of alexithymia is explained by depression. Our own results show a shared variance of 20% between the TAS-20 and the BDI, going in the direction of a moderated correlation between alexithymia and depressive symptomatology. Moreover, when we retain only subjects without depressive symptomatology at BDI, drug addicted (n=42) are not any more alexithymic than controls (n=114). Our results plead for a positive association between depression and alexithymia in drug addicted, depressed or healthy subjects. Alexithymia and depression would be two associated dimensions, the emotional component explaining alone this association. The emotional component of the alexithymia would be thymo-dependent, whereas the cognitive component (externally oriented thought) would be independent and constitute a stable clinical feature. These results are concordant with other studies in the literature suggesting that alexithymia in its emotional component is supported by depression. Alexithymia thus did not appear as an autonomous dimension which would discriminate between drug addicted and controls, independently of the absence of a depressive state. The Authors discuss the complexity of the relationships between alexithymia and depression and the correlations between TAS and BDI scales especially for the factor Difficulty Identifying Feelings. These results deserve further studies. The cross-sectional nature of this study do not allow to establish if alexithymia is a subjacent and preexistent in the form of a psychopathological dimension in addictive behaviours, so supporting its emergence, and/or if it develops once the dependence is installed and chronicized. Longitudinal studies remain to be realised.

Predictive factors of social disability in anorexic and bulimic patients.

OBJECTIVES: The purpose of this study was to determine whether subjects suffering from anorexia nervosa (AN) or bulimia nervosa (BN) would demonstrate more severe social disability than a control group; and whether social disability could be best explained as a function of the eating disorder itself or as a function of comorbid anxiety or depressive disorders. METHOD: Subjects were 166 AN subjects, 105 BN subjects and 271 control subjects matched for age, sex and socio-economic status. Prevalence of anxiety or depressive disorders was assessed (through the Mini International Neuropsychiatric Interview), and social functioning was measured (through the Groningen scale). RESULTS: The majority of AN and BN subjects demonstrated social disability in the "social role" (leisure time, time spent with friends) and the "occupational role" (work or educational activities). A regression analysis was employed to uncover predictive factors of social disability. Eating disorders (AN and BN), anxiety disorders and depression accounted for a large portion of social disability. DISCUSSION: Anxiety and depressive disorders appear to play an important role in the type of social disability demonstrated in eating disorder patients. Therapeutic implications are discussed.

Treatment of adolescent patients with eating disorders: description of a psychodynamic approach in clinical practice.

Anorexia nervosa (AN) is now usually considered to be a multifactorial disorder, and there is a consensus among clinicians that its treatment should be aimed at restoring weight, altering anorexic attitudes, treating any medical complications, supporting and treating the family, enhancing autonomy, facilitating identity formation, and increasing self-esteem by means of psychotherapy. The practical aspects of such treatments not only vary from country to country, but sometimes also from one treatment team to another. International meetings dedicate considerable discussion to the subject but, as it seems to be relatively ignored in the published literature, we here describe the main elements of our own method.

[Validation study of the Depressive Experience Questionnaire]. / Etude de validation du Depressive Experience Questionnaire.

Sidney Blatt, considering as being insufficient the categorical-symptomatic approach of depression, has worked out a theory of depression and psychopathology that integrates the contributions of psychoanalysis as well as cognitive and developmental psychology. Within a broad psychoanalytic framework, Blatt's formulation focus on the quality of interpersonal relationship, the nature of object representation and early life experiences. Personality development is viewed as the consequence of the interaction of 2 basic developmental tasks: the establishment of the capacity to form stable, enduring, mutually satisfying interpersonal relationships and the achievement of a differentiated, realistic, essentially positive identity. The relationship between these 2 developmental lines involves a complex dialectical process during which progress in each line is essential for progress in the other and which contributes to the development of both a sense of identity and the capacity for interpersonal relatedness. These developmental lines permit not only to define an during individual's primary personality configuration but also enable to identify cognitive structures that are inherent in various forms of psychopathology, including depression. Disruptions at different developmental stages create vulnerability to different subsequent psychological disturbances. Blatt characterised as anaclitic or dependent the axis concerned with interpersonal relationship and as introjective or self-critical the axis concerned with development of the sense of self and identity. Depressive Experience Questionnaire was developed by Blatt et al. to determine the validity of this model of psychopathology which emphazises continuities between normal and pathological forms of depression. The instrument was developed by Blatt et al. by assembling a pool of items describing experiences frequently reported by depressed individual. Sixty-six items were selected and administered to a large nonclinical sample (500 female and 160 male undergraduates). Principal component analysis within sex performed on the answers to DEQ confirmed his assumption in identifying two principal depressive dimensions. The first factor involved items that are primarily externally directed and refer to a disturbance of interpersonal relationships (anaclitism); the second factor consists of items that are more internally directed and reflect concerns about self-identity (self-criticism). A third factor emerged, assessing the good functioning of subject and confidence in his resources and capacities (efficacy). Scales derived from these factors have high internal consistency and substantial test-retest reliability. The solutions for men and women were highly congruent. Factor structure has been replicated in several nonclinical and clinical samples, supporting considerable evidence to the construct validity of the DEQ Dependency and Self-criticism scales. An adolescent form of DEQ (DEQ-A) has successively been developed. Factor analysis revealed three factors that were highly congruent in female and male students and with the three factors of the original DEQ. The reliability, internal consistency and validity of DEQ-A indicate that the DEQ-A closely parallels the DEQ, especially in the articulation of Dependency and Self-criticism as two factors in depression. These formulations and clinical observations about the importance of differentiating a depression focused on issues of self-criticism from issues of dependency are consistent with the formulations of others theorists which, from very different theoretical perspectives, posit 2 types of depression, one in which either perceived loss or rejection in social relationships is central and the other in which perceived failure in achievement, guilt or lack of control serves as the precipitant of depression. These 2 types of experiences have been characterized as dominant other and dominant goal , as anxiously attached and compulsively self-reliant and as sociotropic and autonomous . Our work presents the results of a validation study of both forms of Blatt's questionnaire (for adults--DEQ--and for adolescents--DEQA) translated in French in a large population of normal subjects, aged 15 to 45 years. DEQ and DEQ-A were compared by inspection of items loading strongly on each factor and by correlation of the three factors of adults and adolescents. The exploratory factor analysis of DEQ and DEQA revealed three orthogonal factors, corresponding with Blatt's original dimensions. Consistency and external validity were adequate for all 3 factors of DEQ and DEQ-A. Anaclitism and self-criticism dimensions of DEQ and DEQ-A correlate positively with measures of depression (DSM-IV, Beck Depression Inventory), consistently with the results obtained by Blatt. Differently from this author, anaclitism appears to be less differentiated in males than in females, suggesting that the concept of dependence could assume different relevance for men and women.

Cytokines and depression: an analogic approach.

A growing body of evidence suggests that major depressive disorders may be accompanied by immune dysfunction and more particularly by an enhanced production of pro-inflammatory cytokines. The possible involvement of cytokines in depressive illness are based upon an analogic model. Pro-inflammatory cytokines are known to induce behavioral effects, and neuro-endocrine and immune activation similar to those observed in depression; these can be alleviated by antidepressant treatment. In this paper, we review research literature on the links between depressive illness and cytokine production and address further questions on this cytokine pathway. Further research is needed to see whether cytokines sustain specific depressive syndromes or whether cytokines induce depressive-like symptoms.