Association of the Brain-derived Neurotrophic Factor Val66Met Polymorphism with Body Mass Index, Fasting Glucose Levels and Lipid Status in Adolescents.

Brain-derived neurotrophic factor (BDNF) has an important role in energy balance. It suppresses food intake, reduces hepatic glucose production and converts white fat into brown fat in adipose tissue, leading to energy dissipation, lowered blood glucose and a lean phenotype. Studies have shown that the single nucleotide polymorphism (SNP) Val66Met within BDNF may be associated with obesity, insulin sensitivity, type 2 diabetes mellitus (T2DM) and dyslipidemia. The objective of the study was to investigate the association of the Val66Met polymorphism with body mass index (BMI), fasting glucose levels and lipid profile in Serbian adolescents. The study included 308 randomly selected healthy adolescents, 153 (49.68%) boys and 155 girls (50.32%), 15 years of age. Data including age, gender, height, weight, lipid profile and fasting glucose were recorded. Genotyping was performed by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. No association of this polymorphism was found with BMI and lipid profile. However, significant association was observed between this polymorphism and fasting blood glucose (FBG). Carriers of a Val/Val genotype had significantly higher mean values of fasting glucose level compared to carriers of Val/ Met and Met/Met genotypes (p = 0.01). To confirm these results multiple linear regression analysis was performed. Body mass index and gender were taken as covariates. Carriers of the Val/Val genotype had significantly higher levels of FBG (ß = -0.152, p = 0.02). A statistically significant association between BMI and glucose level was also observed (ß = 0.124,p = 0.033). This polymorphism could be associated with fasting glucose level in Serbian adolescents, thus further research would be of great interest to validate these results.

Factors associated with improvement of quality of life among parents of children with atopic dermatitis: 1-year prospective cohort study.

BACKGROUND: Previous studies exploring the impact of atopic dermatitis (AD) in children focused on factors associated with parental quality of life at one point in time. OBJECTIVE: To examine factors associated with change of quality of life among parents of children affected with AD. METHODS: The study cohort comprised 98 parent-children pairs treated for AD at the Clinic of Dermatovenereology; however, 18 parents (18.4%) were lost to follow-up after 1 year. Children were assessed with SCORing Atopic Dermatitis Index (SCORAD) and Children Dermatology Life Quality Index (CDLQI) or the Infants' Dermatitis Quality of Life Index (IDQOL), depending on their age. Parents filled in socio-demographic questionnaire and Dermatitis Family Impact Questionnaire (DFI). After 1 year, both children and parents were reassessed using the same AD-related battery of questionnaires. RESULTS: After follow-up, a significant improvement in the average total DFI score was observed, especially for domains of fatigue/exhaustion, emotional distress and impact of helping in child treatment. Lower baseline SCORAD, greater improvement of SCORAD over follow-up, better CDLQI/IDQOL at baseline, greater improvement in CDLQI/IDQOL over follow-up, not having asthma and having older child with AD were associated with better parental quality of life after 1 year of follow-up. Parental higher education level, shorter AD duration, better baseline SCORAD and greater improvement in CDLQI/IDQOL over follow-up were associated with greater improvement in parental life quality over 1 year of follow-up. CONCLUSION: Contributors to parental quality of life after 1 year included clinical features of AD and child's comorbidity (asthma), but also the perception of child's quality of life and its improvement.

Publisher's Note: Demonstrating universal scaling for dynamics of Yukawa one-component plasmas after an interaction quench [Phys. Rev. E 93, 023201 (2016)].

This corrects the article DOI: 10.1103/PhysRevE.93.023201.

Demonstrating universal scaling for dynamics of Yukawa one-component plasmas after an interaction quench.

The Yukawa one-component plasma (OCP) model is a paradigm for describing plasmas that contain one component of interest and one or more other components that can be treated as a neutralizing, screening background. In appropriately scaled units, interactions are characterized entirely by a screening parameter, κ. As a result, systems of similar κ show the same dynamics, regardless of the underlying parameters (e.g., density and temperature). We demonstrate this behavior using ultracold neutral plasmas (UNPs) created by photoionizing a cold (T≤10 mK) gas. The ions in UNP systems are well described by the Yukawa model, with the electrons providing the screening. Creation of the plasma through photoionization can be thought of as a rapid quench of the interaction potential from κ=∞ to a final κ value set by the electron density and temperature. We demonstrate experimentally that the postquench dynamics are universal in κ over a factor of 30 in density and an order of magnitude in temperature. Results are compared with molecular-dynamics simulations. We also demonstrate that features of the postquench kinetic energy evolution, such as disorder-induced heating and kinetic-energy oscillations, can be used to determine the plasma density and the electron temperature.

Quality of life in patients with alopecia areata: a hospital-based cross-sectional study.

BACKGROUND: Previous studies suggest that alopecia areata (AA) may significantly affect patient quality of life (QoL). There are no studies that assess QoL in Serbian AA patients. OBJECTIVES: This study aims to assess the impact of AA on patients' QoL in comparison to patients affected by other skin diseases and to determine the impact of sociodemographic and clinical characteristics of AA patients on QoL. METHODS: A hospital-based cross-sectional study of 60 patients with AA was conducted at the Clinic of Dermatovenereology, Clinical Center of Serbia, Belgrade between April 2012 and June 2013. The severity of hair loss was assessed using the Severity of Alopecia Tool (SALT). Patients' self-assessment of QoL was measured by three self-administered questionnaires: The Short Form-36 Health Survey (SF-36), Dermatology Life Quality Index (DLQI) and The Skindex-29. RESULTS: Sixty AA patients (16 males and 44 females) with mean age of 37.35 ± 14.26 years completed the questionnaires. We confirmed that QoL of our AA patients was impaired. Compared with patients suffering from psoriasis, atopic dermatitis and onychomycosis AA patients presented significantly better QoL. Severity of disease (SALT) correlated only with personal relationship - dimension of DLQI (ρ = 0.29, P < 0.05) and social functioning - dimension of Skindex (ρ = 0.26, P < 0.05). No correlation was observed between severity of the disease and SF-36 subscales. AA patients with depression had significantly worse QoL in daily activities, leisure, work or school and personal relationships - DLQI dimensions, and emotions and social functioning - Skindex subscales. CONCLUSION: Our study demonstrates that AA influences QoL, but to a lesser degree than observed for psoriasis, atopic dermatitis and onychomycosis.

Intellectual ability in the duchenne muscular dystrophy and dystrophin gene mutation location.

Duchenne muscular dystrophy (DMD) is the most common form of muscular dystrophy during childhood. Mutations in dystrophin (DMD) gene are also recognized as a cause of cognitive impairment. We aimed to determine the association between intelligence level and mutation location in DMD genes in Serbian patients with DMD. Forty-one male patients with DMD, aged 3 to 16 years, were recruited at the Clinic for Neurology and Psychiatry for Children and Youth in Belgrade, Serbia. All patients had defined DMD gene deletions or duplications [multiplex ligation-dependent probe amplification (MLPA), polymerase chain reaction (PCR)] and cognitive status assessment (Wechsler Intelligence Scale for Children, Brunet-Lezine scale, Vineland-Doll scale). In 37 patients with an estimated full scale intelligence quotient (FSIQ), six (16.22%) had borderline intelligence (70