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Quality of life of families who have children with Fragile-X syndrome in Brazil

Grant number: 18/11901-2
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2018
Effective date (End): November 30, 2019
Field of knowledge:Biological Sciences - Genetics - Human and Medical Genetics
Principal Investigator:Débora Gusmão Melo
Grantee:Thamires Rosa dos Santos
Host Institution: Centro de Ciências Biológicas e da Saúde (CCBS). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil


Fragile X syndrome (FXS) is a rare genetic disease, with an estimated prevalence of 1-5:10,000, associated with mild to severe intellectual disability. It is caused by the transcriptional silencing of the FMR1 gene, located in Xq27.3, due to the expansion and subsequent methylation of trinucleotide (CGG) repeats in the 5'-untranslated genic region. This project aims to investigate the impact of FXS on the Brazilian families' quality of life. This is a descriptive and cross-sectional research that will be developed with the formal support of the "Associação Catarinense da Síndrome do X-Frágil". All families that have children with FXS and are linked to the "Associação Catarinense da Síndrome do X-Frágil" will be invited to participate in the survey. When agreeing to participate, one of the family members (preferentially the mother) should fill out two forms: the "family's sociodemographic profile" and the "FXS person profile", and the functional indexes of Barthel and Lawton & Brody, as well as the "Beach Center Family Life Quality Scale" (BCFQOLS). The BCFQOLS is a specific scale for assessing the quality of life of families who have a disabled member. It is composed of 25 items, divided into 5 domains (parenting, family interaction, emotional well-being, physical/material well-being and disability-related supports), and it was recently validated for the Portuguese language. We will analyze the correlation between the different domains of the BCFQOLS among themselves and the level of general family quality of life (corresponding to the sum of the 5 domains of the BCFQOLS), and will investigate the influence of socioenvironmental factors and personal factors of individuals with FXS on the quality of family life. In all statistical analyzes, the level of significance adopted will be 5%. Ultimately, we intend that this study provides subsidies for the development of a comprehensive care line for patients with genetic diseases in the Brazilian Health System, according to National Policy on Comprehensive Care for People with Rare Diseases.

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