how to cite this article: babaknejad n, sayehmiri f, sayehmiri k, mohamadkhani a, bahrami s. the relationship between zinc levels and autism: systematic review and meta-analysis. iran j child neurol. autumn 2016; 10(4):1-9.   abstract objective autism is a complex behaviorally defined disorder. there is a relationship between zinc (zn) levels in autistic patients and development of pathogenesis...

objective sleep disorders are common in children; they also have a significant impact on the whole family, the parents in particular. few studies in this field have been performed in iran; hence the  present study was carried out in order to determine sleep patterns and the  prevalence of sleep disorders in school aged children in qazvin. material and methods this cross sectional study was done...

background: patients with bleeding disorders are frequently infected with hepatitis c virus (hcv). there are few reports on the effect of standard interferon in these patients and no published report on pegylated interferon. the aim of this study was to compare pegylated interferon alpha-2a and standard interferon alpha with ribavirin in patients with bleeding disorders and chronic hcv infectio...

introduction: attention deficit hyperactivity disorder (adhd) is the most common psychiatric disorder in school age children and has a negative effect on the individual’s general functions. the purpose of this study was to estimate the prevalence of adhd in preschool 6 year old children in yazd in 2005 and the influence of gender, birth weight, birth order and parental education on adhd. method...

background: patients with functional gastrointestinal disorders (fgids) may use specific coping strategies. we intend to provide a mediating role of the relationship between pain (intensity and acceptance), cognitive emotion regulation strategies, and negative emotions in patients with fgids. materials and methods: participants were 176 inpatients, all experiencing significant fgids symptomatol...

helicobacter pylori (h. pylori) is one of the most common chronic infections in patients with gastrointestinal disorders. recent reports suggested that h. pylori might have high prevalence among patients with diabetes. the aim of this cross-sectional study was to assess the prevalence of h. pylori infection in diabetes mellitus and to study the relationship between histological findings and h. ...

background: sleep disorders among heart failure (hf) patients negatively influence the quality of life. awareness of sleep disturbances, as one of the disturbing factors of the quality of life among hf patients, and its related factors would help health care staff to provide more comprehensive care. hence, this study was conducted to determine the quality of sleep and its related factors in hos...

objectives: autism spectrum disorder (asd) is a group of neurodevelopment syndromes with impairments in social communications and restrictive or repetitive behaviors. neurofeedback is a new method that may regulate neuro and metabolic function in brain. this study is semi-experimental, with pre and post test.  methods: in 26 children with asd, 40 sessions of neurofeedback were done. brain waves...

background: previous studies have shown that interaural-time-difference (itd) training can improve localization ability. surprisingly little is, however, known about localization training vis-à-vis speech perception in noise based on interaural time difference in the envelope (itd env). we sought to investigate the reliability of an itd env-based training program in speech-in-noise perception a...

there is strong and consistent evidence that eating disorders are prevalent in sport and especially in weight sensitive sports such as endurance, weight category and aesthetic sports as well as jumping events. these illnesses are not only common but lead to significant physical and psychological morbidity and impaired performances. sports organizations, and by extension the professionals whose ...