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• Eating disorders

AUTHOR(S): Berman K; Lam RW; Goldner EM

AUTHOR'S ADDRESS: Department of Psychiatry, University of British Columbia, Vancouver, Canada.

ARTICLE TITLE: Eating attitudes in seasonal affective disorder and bulimia nervosa.

ARTICLE SOURCE: J Affect Disord (Netherlands), Dec 1993, 29(4) p219-25

ABSTRACT: Markedly increased appetite and eating are commonly found in seasonal affective disorder (SAD) and bulimia nervosa (BN). To investigate dysfunctional eating attitudes, we administered the Eating Disorders Inventory (EDI), a self-rating questionnaire that assesses abnormal eating attitudes and behaviours, to 30 female SAD patients, 30 matched BN patients, and 30 non-clinical subjects. The SAD patients had higher scores on most EDI subscales compared to the non-clinical subjects; the BN patients had higher scores than the SAD patients on only two of three EDI subscales that are specific to eating disorders. These data add to the evidence supporting a clinical overlap between SAD and BN.

AUTHOR(S): Brewerton TD; Krahn DD; Hardin TA; Wehr TA; Rosenthal NE unter Eßstörungen

AUTHOR'S ADDRESS: Dept. of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston 29425-0742.

ARTICLE TITLE: Findings from the Seasonal Pattern Assessment Questionnaire in patients with eating disorders and control subjects: effects of diagnosis and location.

ARTICLE SOURCE: Psychiatry Res (Ireland), Apr 1994, 52(1) p71-84

ABSTRACT: We previously reported a high degree of seasonality as measured by the Seasonal Pattern Assessment Questionnaire (SPAQ) in 41 patients with eating disorders (ED) compared with control subjects and patients with five other affective spectrum disorders. To clarify the relationship of the specific ED diagnosis and latitude to seasonal variation in a larger sample, we administered the SPAQ to 159 women with ED as defined by DSM-III-R. Subtype diagnoses were as follows: bulimia nervosa (BN), n = 109; anorexia nervosa (AN), n = 30; BN+AN, n = 20. Patients were studied at three locations: National Institute of Mental Health (NIMH), n = 46; Medical University of South Carolina (MUSC), n = 53; University of Michigan (UM), n = 60. The control group comprised 50 female normal volunteers studied at NIMH. There was a statistically significant difference in Global Seasonality Scale (GSS) scores among the four diagnostic groups, and all ED subtypes had significantly higher GSS scores than control subjects after post hoc Bonferroni t tests. Higher GSS scores were also found in patients with BN+AN compared with patients with BN or AN alone. The patterns of change were similar to those observed in winter seasonal affective disorder (SAD). Thirteen percent of the total sample of ED patients met SPAQ criteria for winter SAD, with 2.5% each for summer SAD and subsyndromal SAD. UM BN patients (latitude 42 degrees N) had higher GSS scores and a higher prevalence of winter SAD than MUSC BN patients (latitude 33 degrees N), but this difference was not statistically significant. These data support the hypothesis that ED and SAD may involve similar pathophysiological mechanisms, possibly related to serotonin dysregulation.

AUTHOR(S): Gruber NP; Dilsaver SC

AUTHOR'S ADDRESS: Department of Psychiatry and Behavioral Sciences, University of Texas-Houston Health Science Center, USA.

ARTICLE TITLE: Bulimia and anorexia nervosa in winter depression: lifetime rates in a clinical sample.

ARTICLE SOURCE: J Psychiatry Neurosci (Canada), Jan 1996, 21(1) p9-12

ABSTRACT: Symptoms of an eating disorder (hyperphagia, carbohydrate craving, and weight gain) are characteristic of wintertime depression. Recent findings suggest that the severity of bulimia nervosa peaks during fall and winter months, and that persons with this disorder respond to treatment with bright artificial light. However, the rates of eating disorders among patients presenting for the treatment of winter depression are unknown. This study was undertaken to determine these rates among 47 patients meeting the DSM-III-R criteria for major depression with a seasonal pattern. All were evaluated using standard clinical interviews and the Structured Clinical Interview for DSM-III-R. Twelve (25.5%) patients met the DSM-III-R criteria for an eating disorder. Eleven patients had onset of mood disorder during childhood or adolescence. The eating disorder followed the onset of the mood disorder. Clinicians should inquire about current and past symptoms of eating disorders when evaluating patients with winter depression.

AUTHOR(S): Lam RW; Solyom L; Tompkins A

AUTHOR'S ADDRESS: Department of Psychiatry, University of British Columbia, Canada.

ARTICLE TITLE: Seasonal mood symptoms in bulimia nervosa and seasonal affective disorder.

ARTICLE SOURCE: Compr Psychiatry (United States), Nov-Dec 1991, 32(6) p552-8

ABSTRACT: Mood and appetite disturbances are commonly found in bulimia nervosa and seasonal affective disorder (SAD). To investigate seasonality of mood symptoms, we administered the Seasonal Pattern Assessment Questionnaire (SPAQ) to 38 consecutive bulimic patients, 38 age- and sex-matched SAD patients, and 25 age- and sex-matched normal controls. The SPAQ is a reliable, retrospective, self-rated questionnaire that assesses seasonal changes in mood, sleep, weight, and social activity. The SAD patients had significantly higher Global Seasonality Scores (GSS) than the bulimic patients, who had higher scores than the control group (F = 78.6, df = 2.98, P less than .0001). Forty-two percent of bulimics met case-finding SPAQ criteria for SAD, compared with none of the control group (chi 2 = 14.1, df = 1, P less than .0005). These data suggest that a significant number of unselected bulimic patients have seasonal mood symptoms as severe as that seen in SAD. We propose that a common neurobiologic abnormality, such as serotonergic dysfunction, may underlie the common symptoms found in bulimia and SAD.

AUTHOR(S): Lam RW; Goldner EM; Grewal A

AUTHOR'S ADDRESS: Department of Psychiatry, University of B.C., Vancouver, Canada.

ARTICLE TITLE: Seasonality of symptoms in anorexia and bulimia nervosa.

ARTICLE SOURCE: Int J Eat Disord (United States), Jan 1996, 19(1) p35-44

ABSTRACT: OBJECTIVE:Recent research has suggested that a large proportion of patients with bulimia nervosa have seasonal (winter) worsening of mood symptoms similar to seasonal affective disorder (SAD). The objectives of this study were to determine the specificity of this finding in anorexia and bulimia nervosa, and to further delineate the seasonal mood and eating patterns in bulimia nervosa. METHOD: A modified Seasonal Pattern Assessment Questionnaire (SPAQ) was administered to consecutive female patients assessed at an Eating Disorders Clinic with DSM-III-R diagnoses of bulimia nervosa (BN, N = 60) and anorexia nervosa (AN, N = 31), and to female nonclinical comparison subjects (NC, N = 50). RESULTS: The BN group had higher global seasonality scores and more presumptive diagnoses of SAD than the other two groups; the AN patients, whether they had the restricting or binge eating/purging subtype, did not differ from the NC subjects. Thirty-two percent of the identified seasonal BN patients did not have parallel worsening of mood and eating symptoms in the same season. DISCUSSION: These results suggest that seasonality of symptoms is specific to BN and that there may be separate mechanisms for the seasonality of mood and eating symptoms in some BN patients.

AUTHOR(S): Lam RW; Goldner EM; Solyom L; Remick RA

AUTHOR'S ADDRESS: Department of Psychiatry, University of British Columbia, Vancouver, Canada.

ARTICLE TITLE: A controlled study of light therapy for bulimia nervosa.

ARTICLE SOURCE: Am J Psychiatry (United States), May 1994, 151(5) p744-50

ABSTRACT: OBJECTIVE: Winter worsening of mood and eating symptoms, similar to that of seasonal affective disorder, has recently been reported in patients with bulimia nervosa. To assess the effectiveness of light therapy for treatment of bulimia nervosa, the authors conducted a study of light therapy during winter comparing an active (bright white light) condition to a control (dim red light) condition in bulimic patients who were not selected for a seasonal pattern of bulimia. METHOD: After a 2-week baseline assessment, 17 female patients with a DSM-III-R diagnosis of bulimia nervosa underwent early morning light treatment with 2 weeks of bright white light exposure (10,000 lux for 30 min/day) and 2 weeks of dim red light exposure (500 lux for 30 min/day) in a counterbalanced, crossover design. Outcome measures included daily binge/purge diaries, objective and subjective measures of mood, and the Eating Attitudes Test. Expectation of response for each condition was also assessed before treatment. RESULTS: Although pretreatment expectation ratings were similar for each condition, the bright white light condition was superior to the dim red light condition for all mood and eating outcome measures. Patients with "seasonal" bulimia (N = 7) had significantly greater improvement after the bright white light treatment than patients with nonseasonal bulimia (N = 10). No significant order effects were noted, nor differential effects for patients taking concurrent antidepressant medications (N = 4). CONCLUSIONS: These data suggest that bright white light therapy is an effective short-term treatment for both mood and eating disturbances associated with bulimia nervosa, although the therapeutic effect may be greater in those patients with a seasonal pattern.

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