Search

Background: Brain-derived neurotrophic factor (BDNF) influences brain plasticity and feeding behaviour, and it has been linked to anorexia nervosa in numerous studies. Findings in mostly adult patients point to reduced serum BDNF levels in the acute stage of anorexia nervosa and rising levels with weight recovery. However, it is unclear whether this increase leads to normalization or supranormal levels, a difference that is potentially important for the etiology of anorexia nervosa and relapse. Methods: We measured serum BDNF at admission (n = 149), discharge (n = 130), 1-year follow-up (n = 116) and 2.5-year follow-up (n = 76) in adolescent female patients with anorexia nervosa hospitalized for the first time, and in healthy controls (n = 79). We analyzed associations with body mass index, eating disorder psychopathology and comorbidities. Results: Serum BDNF was only nominally lower at admission in patients with anorexia nervosa compared to healthy controls, but it increased continuously and reached supranormal levels at 2.5-year follow-up. BDNF was inversely associated with eating disorder psychopathology at discharge and positively associated with previous weight gain at 1-year follow-up. Limitations: We compensated for attrition and batch effects using statistical measures. Conclusion: In this largest I ongitudinal study to date, we found only nonsignificant reductions in BDNF in the acute stage of anorexia nervosa, possibly because of a shorter illness duration in adolescent patients. Supranormal levels of BDNF at 2.5-year follow-up could represent a pre-existing trait or a consequence of the illness. Because of the anorexigenic effect of BDNF, it might play an important predisposing role for relapse and should be explored further in studies that test causality., Introduction Patients with anorexia nervosa experience extremely low body weight combined with body image disturbance, drive for thinness, restrictive eating behaviour and often physical hyperactivity. (1) Eating disorders are the [...]

The COVID-19 pandemic appears to have had a considerable impact on the mental health of children and adolescents, particularly regarding eating disorders. However, it remains unclear whether the pandemic affected only the frequency or also the severity of eating disorders. We examined potential pandemic-related changes in the administrative prevalence of eating disorders in the outpatient sector compared with other mental disorders using German statutory health insurance data for the age group 10 to 16 years. We also examined disorder severity of anorexia nervosa using data from the multicenter German Registry of Children and Adolescents with Anorexia Nervosa in the same age group. Our results showed a marked increase in the administrative prevalence of eating disorders (based on documented diagnoses) in the outpatient sector among girls but not among boys. A similar pattern was found for internalizing disorders, whereas the administrative prevalences of externalizing disorders decreased. Regarding the severity of anorexia nervosa among inpatients, we found no pandemic-related changes in body mass index standard deviation score at admission, body weight loss before admission, psychiatric comorbidities and psychopharmacological medication. Given the administrative prevalence increase in the outpatient sector, the lack of impact of the pandemic on the inpatient sector may also be partly due to a shift in healthcare utilization towards outpatient services during the pandemic. Thus, the higher number of children and adolescents requiring specialized and timely outpatient care may be a major concern under pandemic conditions., (© 2024. The Author(s).)

Psychoses on the Schizophrenia Spectrum in Adolescence: A Cross-sectional Study of Factors Influencing Neuropsychology, Treatment Outcome, and Negative Symptoms Abstract: Objective: The present study evaluated the factors influencing the course of disease of children and adolescents in an inpatient rehabilitation suffering from psychosis within the schizophrenia spectrum. Methods: 33 patients (mean age 19.4 years, SD = 2.3), 12 of (36 %) were female, participated. They were assessed with clinical interviews (IRAOS, SANS/SAPS), neuropsychological tests (WAIS-IV, TMT), and questionnaires (FBB, BSCL). Results: The neuropsychological functioning level and the premorbid cognitive performance were correlated, as were treatment success from the patient's perspective with a good relationship with the therapist, and greater negative symptomatology with a longer duration of untreated psychosis (DUP) and a longer initial hospital stay. Conclusion: Possible approaches to improving the treatment of adolescents with psychosis of the schizophrenic spectrum include a shortening of the DUP and a good therapeutic relationship.