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Autosomal recessive primary microcephaly; MCPH is a rare neurologically condition observed in new born at the birth. Most patients suffer from moderate to severe intellectual disability. In this review article, we introduce MCPH disorder; include all of the chromosomal locations, kind of MCPH genes and numbers of mutations, functional efficacy, how to identify the genes separately and diagnostic algorithm of articles and data base such as OMIM, HGMD. 23 locations genes (MCPH1-23) have been recognized causes primary microcephaly in different population, so far. Function of them is to correct orientation of mitosis spindles, duplication of DNA, organization and function of centrosome, transfer of vesicles, transcription regulation, response to DNA lesion, etc. According to investigations, MCPH in Iran and Pakistan population is common because of more consanguinity marriage. MCPH1 and MCPH5 genes are more common in Iran. Recent advances in molecular biological techniques and animal models have helped to identify the genetic cause of microcephaly and open up the horizons for researchers in the field, and also elucidating of the underlying molecular mechanisms will improve our understanding of the structure and function of the brain.

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Background and Objective: Balance in intellectual disability individuals is very important due to the weakness in performing balance tasks. This study was performed to determine the effect of six weeks of vestibular stimulation exercises on the balance of children with mild intellectual disability.
Methods: In this clinical trial study, 30 intellectual disability boys were randomly divided into control and experimental groups. Subjects in experimental group were receiving vestibular stimulation training for six weeks. No intervention was performed on the subjects in the control group. A single leg test was used to screen the subjects with a balance of weakness. To assessment the static, dynamic and functional Balance, the Bruninks Oseretsky test was used and a Timed Up and Go (TUG) was used, respectively.
Results: After the end of the training period, static balance, dynamic balance and functional balance was significantly increased in experimental group compared to controls (P<0.05).
Conclusion: Six weeks of vestibular stimulation exercises have a positive effect on static, dynamic and functional balance in intellectual disability boys.

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According to the US Centers for Disease Control and Prevention (CDC) definition, genetic counseling is a process in which information is presented about how genetic conditions affect a patient or his/her family. A genetic counselor collects a patient’s personal and family health history to promote the family’s awareness and perception of specific genetic diseases, testing risks and advantages, disease management, and assessment of available therapeutic options. Intellectual disability (ID) and deafness are two common disabilities with considerable impacts on the quality of life of patients and their families. The present research has investigated the role of genetic counseling in the screening and prevention of deafness and ID based on the studies published in the Web of Science, PubMed, and Google Scholar databases between 2015 and 2023. Genetic counseling can be employed as an influential tool in screening, early diagnosis, and prevention of ID and deafness. Considering that many cases of ID and deafness are rooted in individual genetics, genetic counseling can help lessen the risk factors of developing these disabilities and improve the quality of individual and family life. The effect of genetic counseling, as an influential tool, on screening, early diagnosis, and prevention of ID and hearing loss is also assessed.

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Trichotillomania disorder, or hair pulling disorder, is a condition in which patients unconsciously engage in hair-pulling, which reinforces compulsive hair pulling behaviors, culminating in conscious and deliberate hair pulling. Behavioral therapy is a common treatment approach for this disorder. Habit-reversal training (HRT) is a particularly effective treatment method for children with intellectual disabilities who exhibit this disorder. This case report presents the efficacy of HRT in reducing trichotillomania-associated severity and distress. The patient was a 13-year-old girl with intellectual disability who met the diagnostic criteria for trichotillomania according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V). She received eight sessions of HRT techniques over one month. The Massachusetts General Hospital Hair Pulling Scale (MGH-HPS) was employed to measure the severity and distress of the hair pulling behavior. Given the patient’s intellectual disability (intelligence quotient [IQ]=65) and limited ability to respond to self-report questions about the nature of self-interests, the parent-report version of the scale was used both during the treatment and the one-month follow-up. The effectiveness of the intervention was evaluated using visual analysis of graphs, percentage of improvement, effect size, and photographs of the eyebrow hair pulling before and after treatment. The results indicated that the HRT significantly reduced both the severity (effect size=1.75) and distress (effect size=1.77) of the trichotillomania disorder, and the patient exhibited a high percentage of improvement. The one-month follow-up demonstrated that the results were maintained.