Predictive factors of disordered eating among adolescents in Bosnia and Herzegovina

BACKGROUND

Due to excessive concerns and focus on weight control and body shape, adolescents often resort to inappropriate behaviours and attitudes towards eating, resulting in physical and psychological issues. This study aimed to assess possible relationships and predictor variables between disordered eating and age, BMI, body appreciation, self-esteem, quality of family interactions, psychosocial health and childhood trauma experience in adolescents of both sexes in the city of Mostar (Bosnia and Herzegovina).

MATERIALS AND METHODS

A cross-sectional study was carried out on a suitable sample of 724 high-school students aged 14-19 years. The following tools have been used: socio-demographic questionnaire, The Eating Attitudes Test (EAT-26), Body Mass Index (BMI), Body Appreciation Scale (BAS), Rosenberg's Self-Esteem Scale, Quality of Family Interaction Scale (KOBI), and Paediatric Quality of Life Inventory, version 4.0 (PedsQLTM) and Childhood trauma Questionnaire (CTQ). Collected data were analyzed in SPSS v. 20.0 software using Pearson's correlation coefficient and multiple regression analysis.

RESULTS

Body appreciation is the most significant predictor for developing disordered eating across the entire sample of adolescents (β = -0.325, P < 0.05) and individually for male adolescents (β = -0.199, P = 0.010) and female adolescents (β = -0.379, P < 0.001). In addition to this variable, BMI has proved to be a statistically significant predictor in explaining the eating behaviours of female adolescents (β = 0.185, P < 0.001), while this happens to be self-esteem for male adolescents (β = -0.211, P < 0.022).

CONCLUSION

The most significant risk factors for developing disordered eating in adolescents are body appreciation, BMI and self-esteem. Results of this research can contribute to enhancement of intervention programmes which promote a positive body image and aim to prevent disordered eating in adolescents of both sexes.

Hypomyelination with atrophy of the basal ganglia and cerebellum: further delineation of the phenotype and genotype-phenotype correlation

Hypomyelination with atrophy of the basal ganglia and cerebellum is a rare leukoencephalopathy that was identified using magnetic resonance imaging in 2002. In 2013, whole exome sequencing of 11 patients with the disease revealed that they all had the same de novo mutation in TUBB4A, which encodes tubulin β-4A. We investigated the mutation spectrum in a cohort of 42 patients and the relationship between genotype and phenotype. Patients were selected on the basis of clinical and magnetic resonance imaging abnormalities that are indicative of hypomyelination with atrophy of the basal ganglia and cerebellum. Genetic testing and a clinical inventory were performed, and sequential magnetic resonance images were evaluated using a standard protocol. The heterozygous TUBB4A mutation observed in the first 11 patients was the most common (25 patients). Additionally, 13 other heterozygous mutations were identified, located in different structural domains of tubulin β-4A. We confirmed that the mutations were de novo in all but three patients. In two of these three cases we lacked parental DNA and in one the mutation was also found in the mother, most likely due to mosaicism. Patients showed a phenotypic continuum ranging from neonatal to childhood disease onset, normal to delayed early development and slow to more rapid neurological deterioration. Neurological symptomatology consisted of extrapyramidal movement abnormalities, spasticity, ataxia, cognitive deficit and sometimes epilepsy. Three patients died and the oldest living patient was 29 years of age. The patients' magnetic resonance images showed an absent or disappearing putamen, variable cerebellar atrophy and highly variable cerebral atrophy. Apart from hypomyelination, myelin loss was evident in several cases. Three severely affected patients had similar, somewhat atypical magnetic resonance image abnormalities. The study results were strongly suggestive of a genotype-phenotype correlation. The 25 patients with the common c.745G>A mutation generally had a less rapidly progressive disease course than the 17 cases with other TUBB4A mutations. Overall, this work demonstrates that the distinctive magnetic resonance imaging pattern for hypomyelination with atrophy of the basal ganglia and cerebellum defines a homogeneous clinical phenotype of variable severity. Patients almost invariably have prominent extrapyramidal movement abnormalities, which are rarely seen in patients with hypomyelination of different origin. A dominant TUBB4A mutation is also associated with dystonia type 4, in which magnetic resonance images of the brain seem normal. It is highly likely that there is a disease continuum associated with TUBB4A mutations, of which hypomyelination with atrophy of the basal ganglia and cerebellum and dystonia type 4 are the extremes. This would indicate that extrapyramidal movement abnormalities constitute the core feature of the disease spectrum related to dominant TUBB4A mutations and that all other features are variable.