scholarly journals Mutations Impairing GSK3-Mediated MAF Phosphorylation Cause Cataract, Deafness, Intellectual Disability, Seizures, and a Down Syndrome-like Facies

2015 ◽  
Vol 96 (5) ◽  
pp. 816-825 ◽  
Author(s):  
Marcello Niceta ◽  
Emilia Stellacci ◽  
Karen W. Gripp ◽  
Giuseppe Zampino ◽  
Maria Kousi ◽  
...  
Author(s):  
Anna J. Moyer ◽  
Roger H. Reeves

Is intellectual disability a treatable feature of persons with Down syndrome? Researchers have made tremendous progress in the last 30 years, from creating the first mouse model of Down syndrome to completing the first major clinical trial for cognitive impairment in people with Down syndrome. Until recently, normalizing brain development and function seemed too lofty a goal, and indeed, even proposing a candidate therapy requires answering a number of difficult questions. How does trisomy 21, a molecular diagnosis, cause the clinical phenotypes of Down syndrome? When, where, and how do trisomic genes act to disrupt normal development and which genes are involved with which outcomes? Which brain regions and behaviors are most impaired? Is there an early developmental window of time during which treatments are most effective? This article discusses how animal models such as laboratory mice can be used to understand intellectual disability and to develop new treatments for cognitive impairment.


2020 ◽  
Vol 18 (2) ◽  
Author(s):  
Krystyna Popowska

Research was conducted to find out about the parents’ opinions on the intellectual potential of their children with Down syndrome and diagnosed intellectual disability studying in 4–8 grades of common, integration and special schools. Additionally, the factors determining the respondents’ opinions were analyzed. The paper uses the author’s questionnaire was placed on groups for parents of children with Down syndrome on the social network site Facebook. In addition, surveys were sent by e-mail to the primary school districts and non-governmental organizations that help children with Down syndrome. Fifty two questionnaires were collected. The results indicate that, despite intellectual disability, parents recognize the intellectual potential of their children. It can be assumed that assessments of the intellectual potential of students with Down syndrome and diagnosed intellectual disability are determined by their siblings in the intellectual norm, gender, using verbal speech, communication skills, social skills and opinions of their parents about their successes in school and progress as a result of the therapy. 


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jacques Bellavance ◽  
Morin Diane ◽  
Catherine Mello

Purpose The behavioral phenotype of fragile X syndrome (FXS) and intellectual disability (ID) proposed by Hagerman et al. (2009) was primarily based on data from male children and teens. The purpose of this study was to promote a better understanding of how this condition manifests in adults. Design/methodology/approach A total of 18 men of FXS were paired with men with Down syndrome on the basis of age and level of ID. A screening checklist was created on the basis of existing scales and the Hagerman et al. (2009) behavioral phenotype and completed by care providers. Findings Five of the 12 features of the phenotype were significantly more present among men with FXS than in men with Down syndrome. Originality/value This study provides partial confirmation for Hagerman et al.’s (2009) behavioral phenotype of FXS among men with moderate ID and identified some traits that warrant further investigation.


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