Bulimia nervosa, childbirth, and psychopathology

OBJECTIVE: To examine whether having a baby following treatment for bulimia nervosa places women at increased risk for continuing or relapsing eating disorders or major depression. METHODS: Subjects were women who had participated in a large randomized controlled trial evaluating cognitive behavior therapy for bulimia nervosa, who were prospectively followed-up over 5 years. At follow-up assessments (at least yearly), life charts were completed with patients and childbirth was recorded. The presence of eating disorders and major depressive disorder was assessed using the Structured Interview for DSM-III-R. RESULTS: Childbirth was not specifically associated with increased symptomatology. This was found for both eating disorders and major depression in the same year as childbirth and for the year following childbirth. CONCLUSION: Childbirth is not specifically associated with symptomatology following treatment for bulimia nervosa.     

Anorexia nervosa and bulimia nervosa: A meta-analysis of executive functioning

ObjectiveResearch investigating the link between eating disorder (ED) diagnosis and executive dysfunction has had conflicting results, yet no meta-analyses have examined the overall association of ED pathology with executive functioning (EF).MethodEffect sizes were extracted from 32 studies comparing ED groups (27 of anorexia nervosa, 9 of bulimia nervosa) with controls to determine the grand mean effect on EF. Analyses included effects for individual EF measures, as well as an age-based subgroup analysis.ResultsThere was a medium effect of ED diagnosis on executive functioning, with bulimia nervosa demonstrating a larger effect (Hedges’s g = −0.70) than anorexia nervosa (g = −0.41). Within anorexia nervosa studies, subgroup analyses were conducted for age and diagnostic subtype. The effect of anorexia nervosa on EF was largest in adults; however, subgroup differences for age were not significant.ConclusionsAnorexia and bulimia nervosa are associated with EF deficits, which are particularly notable for individuals with bulimia nervosa. The present analysis includes recommendations for future studies regarding study design and EF measurement.     

Assessment of eating disorders: comparison of interview and questionnaire data from a long-term follow-up study of bulimia nervosa

OBJECTIVE: This paper examines diagnostic agreement between interview and questionnaire assessments of women participating in a long-term follow-up study of bulimia nervosa. METHODS: Women (N = 162) completed follow-up evaluations comprising questionnaires and either face-to-face or telephone interviews. RESULTS: Consistent with previous research, rates of eating disorders were higher when assessed by questionnaire than when assessed by interview; however, rates of full bulimia nervosa were similar. Overall diagnostic agreement was adequate for eating disorders (kappa=.64) but poor for bulimia nervosa (kappa=.49), with greater agreement between questionnaires and telephone interviews (kappa's range: .67-.71) than between questionnaires and face-to-face interviews (kappa's range: .35-.58). CONCLUSION: Findings support the possibility that increased rates of eating pathology on questionnaire assessments may be due, in part, to increased candor when participants feel more anonymous. Questionnaire assessments may not be inferior to interview assessments; they may reveal different aspects of disordered eating.     

Regulating satiety in bulimia nervosa: the role of cholecystokinin

PURPOSE: Individuals with bulimia nervosa (BN) report altered perceptions in hunger, fullness, and satiety. This article reviews the role of cholecystokinin (CCK), a satiety‐producing hormone, in the regulation of binge eating in those who suffer from BN. CONCLUSION: Studies have shown that CCK is decreased in individuals with BN when compared with healthy controls. Decreased CCK functioning may contribute to impaired satiety and thus binge eating in this patient population. Depending on the macronutrient composition of food choices, CCK release can be differentially influenced. For instance, protein is a potent stimulator of a CCK response. Eating more protein‐rich meals increases the release of CCK, increasing satiety and ending a meal. PRACTICE IMPLICATIONS: Knowledge of CCK functioning and the utility of manipulating the macronutrient composition of meals may inform standard behavioral treatment strategies for those who suffer from BN.     

The epidemiology of eating disorders in six European countries: Results of the ESEMeD-WMH project

Few data are available to estimate the prevalence of eating disorders (EDs) and their correlates in the community. This paper reports data on EDs obtained in the framework of the ESEMeD project, aimed at investigating the prevalence of non-psychotic mental disorders in six European countries (Belgium, France, Germany, Italy, the Netherlands and Spain), using a new version of the Composite International Diagnostic Interview. The ESEMeD study was a general population cross-sectional household survey. In total, 21,425 respondents aged 18 or older provided data for the project between January 2001 and August 2003. A subsample (N = 4139) underwent a detailed investigation on EDs. Lifetime estimated prevalence of anorexia nervosa, bulimia nervosa, binge eating disorder, sub-threshold binge eating disorder, and any binge eating were 0.48%, 0.51%, 1.12%, 0.72%, and 2.15%, respectively, and they were 3-8 times higher among women for all EDs. However, since people under 18 were excluded from this study, our prevalence should be taken as lower-bound estimate of real frequencies. Indeed, cumulative lifetime prevalence analysis showed that the majority of eating disorders had their initial onset between 10 and 20 years of age. Role impairment and comorbidity with other mental disorders were highly common, yet only small proportions of patients with a lifetime diagnosis of EDs requested medical treatment. It still has to be proven whether early diagnostic identification and access to specialized care can reduce the burden caused by these disorders.     

Assessment of somatosensory indicators of polyneuropathy in patients with eating disorders

Summary The somatosensor functions of small-diameter nerve fibres were tested on the lower and upper extremities in nine patients with anorexia nervosa, ten patients with bulimia nervosa and ten control subjects, by analysing warmth, cold, and pain thresholds. To test large-diaeter nerve fibres, the vibration threshold was also measured, Both patient groups had markedly elevated pain thresholds compared with the control subjects. In contrast, warmth and cold thresholds were only suggestively elevated while vibration thresholds were not at all increased in the patients. A distal-proximal pattern of somatosensory deficients, suggestive of peripheral polyneuropathy, was not observed. Hence, a peripheral polyneuropathy affecting small or large afferent fibres as a consequence of an eating disorder seems to be a rare event.     

Depressive symptoms may explain elevated plasma levels of homocysteine in females with eating disorders

Elevated plasma homocysteine levels have been found in different psychiatric disorders, including major depression and eating disorders. The aim of the present study was to evaluate whether presence of depression or depressive symptoms is associated with elevated homocysteine levels in patients with eating disorders. Total plasma homocysteine levels were assessed in 44 females with anorexia nervosa (n = 21) or bulimia nervosa (n = 23). Comorbid major depressive disorder (MDD) was diagnosed according to DSM-IV criteria using a semi-structured interview (SCID-I). Furthermore, depressive symptoms were assessed using Beck's depression inventory (BDI). Presence of MDD was not associated with elevated homocysteine levels (t-test: T = 0.42; df = 42; P = 0.68). However, self-rated presence of clinically relevant depressive symptoms (BDI score18) was associated with elevated homocysteine (T = -2.8; df = 42; P = 0.008). Presence of depressive symptoms may explain elevated homocysteine levels previously reported in patients with eating disorders or vice versa. Longitudinal studies are needed to unravel this hen or egg problem.     

The body asks and the mind judges: Food cravings in eating disorders

BackgroundFood Craving (FC) is a construct influenced by cognitive, emotional, physiological and external components, severely altered in Eating Disorders (EDs).ObjectivesTo investigate how FC was measured in EDs.MethodsA search was conducted (PubMed, Scopus and PsycINFO databases) for studies that have investigated FC in EDs published in the last thirty years.ResultsThe studies found (n= 37) demonstrated that FC is a predictor of binge eating in individuals with Bulimia Nervosa and Binge Eating Disorder, which are more sensitive to the environment and emotional factors, whereas, in individuals with Anorexia Nervosa, FC levels are lower.DiscussionFC is a physiological component of eating behavior, as well as the craving/urge that arises associated with thirst during dehydration, and food restriction is a crucial mechanism for the restriction-binge cycle to hold. Further studies are needed to see if FC increases in response to treatment for Anorexia Nervosa, recognizing that individuals without Anorexia Nervosa have higher FC levels and greater motivational orientation towards food.ConclusionsIt is necessary to understand the physiological role of FC and also consider the significance of each food in an individual eating context (eating attitudes) and whether it is treated like a “drug” or just as a desired tasty food and future studies should verify possible neural changes involved in FC after nutritional treatment.     

Impact of broadening definitions of anorexia nervosa on sample characteristics

Practical limitations and sample size considerations often lead to broadening of diagnostic criteria for anorexia nervosa (AN) in research. The current study sought to elucidate the effects of this practice on resultant sample characteristics in terms of eating disorder behaviors, psychiatric comorbidities, temperament and personality characteristics, and heritability point estimates. Three definitions of AN were created: meeting all Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria for AN (AN-DSM-IV), meeting all DSM-IV criteria except criterion D, amenorrhea, (AN-noD), and broadening DSM-IV AN criteria by allowing a higher body mass index value, eliminating criterion D, and allowing less stringent body weight concerns (AN-Broad). Using data from the Swedish Twin Registry, 473 women fit one of the three definitions of AN. Women with AN-DSM-IV reported significantly more eating disorder behaviors than women with AN-Broad. Women with AN-noD reported more comorbid psychiatric disorders than women with AN-DSM-IV and AN-Broad. Temperament and personality characteristics did not differ across the three groups. Heritability point estimates decreased as AN definition broadened. Broadening the diagnostic criteria for AN results in an increased number of individuals available for participation in research studies. However, broader criteria for AN yield a more heterogeneous sample with regard to eating disorder symptoms and psychiatric comorbidity than a sample defined by narrower criteria.     

Bulimia nervosa in homosexuality and HIV infection in the man. Case report

A male with bulimia nervosa is reported whose homosexual behavior resulted in HIV infection. The goal of this case study is to shed light on the course characteristics of bulimia nervosa occurring together with HIV infection in connection with homosexuality. The patient had experienced a number of traumas including sexual abuse, which surely had an influence on his developing bulimia nervosa. His longing for slimness, shown by the excessive preoccupation and dissatisfaction with body shape and weight may be considered typical for bulimia nervosa in homosexual men. Furthermore, male subjects with eating disorders often seem to be overweight prior to the start of bulimia nervosa, which also was the case in this subject. The course of his HIV infection so far has had no effect on severity of the bulimic symptoms. However, his bulimia nervosa apparently did had negative effects on the course of the HIV infection.     

Exploring eating disorder quality of life and functional gastrointestinal disorders among eating disorder patients

Background

Functional gastrointestinal-like disorders (FGIDs) are prevalent among eating disorder (ED) patients. The aims are to explore the relationship between quality of life related to eating disorders (QOL ED) and FGIDs.

Methods

Consecutive ED patients, 18-45 years old, completed the Rome II, QOL ED, Irritable Bowel Syndrome QOL (IBS-QOL) and Bowel Symptom Severity Index (BSSI) questionnaires on admission to hospital for treatment of their ED.

Results

Despite the high prevalence of FGIDs (93%), only IBS is clearly correlated with QOL ED scores. The QOL ED subscores significantly related are ED feelings, psychological feelings and effect on daily living. These subscores contain items such as fearing loss of control over your body and feelings, being preoccupied with thoughts of body weight and shape, feeling confused and that eating and exercise have a negative effect on work/study. There were no relationships between QOL ED behavior and individual FGIDs or categories of FGIDs. The QOL ED and IBS-QOL are highly correlated, and there is a positive linear relationship between the QOL ED global and IBS-QOL total and BSSI scores.

Conclusion

The presence of IBS (but not other FGIDs) in ED patients is strongly related to eating disordered and psychological feelings. The poorer the QOL ED is, the poorer the IBS-QOL is and the more severe the IBS symptoms are.     

Eating disorder symptoms among Japanese female students in 1982, 1992 and 2002

To study transcultural differences in eating disorders, we examined eating disorder symptoms and point prevalence of eating disorders among Japanese female students in 1982, 1992 and 2002. In 1982, 1992 and 2002, a total of 10,499 Japanese female students, aged 16–23 years, were asked to complete a self-administered questionnaire. Diagnosis of an eating disorder was made on the basis of DSM-IV criteria. On almost all measures, there were significant increases of a disordered attitude about fear of gaining weight, body perception disturbance and problematic eating behaviors over time. The point prevalence of anorexia nervosa, bulimia nervosa and eating disorder not otherwise specified significantly increased over time. These results suggest that the prevalence of eating disorder symptoms and the point prevalence of eating disorders were increasing among Japanese female students in 2002. Changing socio-cultural factors in Japan may explain the dramatic increase of eating disorders over time.