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Doctoral Thesis
DOI
https://doi.org/10.11606/T.47.2016.tde-16092016-115521
Document
Author
Full name
Carolina Rabello Padovani
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2016
Supervisor
Committee
Assumpcao Junior, Francisco Baptista (President)
Kim, Chong Ae
Moraes, César de
Motta, Ivonise Fernandes da
Rodrigues, Avelino Luiz
Title in Portuguese
Aspectos cognitivos de pacientes com a síndrome de Noonan
Keywords in Portuguese
Cognição
Distúrbios genéticos
Neuropsicologia
síndrome de Noonan
Abstract in Portuguese
A síndrome de Noonan é uma doença autossômica dominante geneticamente heterogênea caracterizada por aspectos faciais distintos, atraso no desenvolvimento, dificuldades de aprendizado, baixa estatura, defeitos cardíacos congênitos, pectus excavatum e pescoço alado. Mutações que alteram genes que codificam proteínas com atuação na via RAS-MAPK causam a síndrome de Noonan e têm sido bastante estudadas. No entanto, há poucas informações sobre o perfil cognitivo da síndrome de Noonan. Neste estudo, diferentes aspectos da cognição foram avaliados (inteligência, funções executivas e habilidade viso-construtiva) em um grupo de 28 pacientes com a síndrome de Noonan, incluindo crianças e adultos, por meio das Escalas Wechsler de Inteligência, pelo Teste Wisconsin de Classificação de Cartas e pelo Teste Figuras Complexas de Rey. Houve uma variação de QI entre 59 e 119, além de melhores resultados em pacientes com mutação no gene PTPN11. No domínio das funções executivas, pacientes tiveram pior desempenho em categorização e flexibilidade cognitiva, embora sem prejuízos em sustentação atencional. Os pacientes demonstraram importantes falhas no planejamento do ato motor no teste de viso-construção e melhores resultados no grupo de pacientes com mutação no gene SOS1. Apesar da eficiência intelectual relativamente intacta, pacientes com a síndrome de Noonan mostraram prejuízos significativos em outros domínios cognitivos, indicando que a avaliação neuropsicológica é importante no manejo clínico da síndrome e um valioso recurso em seu planejamento terapêutico
Title in English
Cognitive aspects of patients with Noonan syndrome
Keywords in English
Cognition
Genetic disorders
Neuropsychology
Noonan syndrome
Abstract in English
Noonan syndrome is an autosomal dominant genetically heterogeneous disorder characterized by distinctive facial features, developmental delay, learning difficulties, short stature, congenital heart defects, pectus excavatum and webbed neck. Mutations that alter genes encoding proteins with roles in the RAS-MAPK pathway cause Noonan syndrome and have been well studied. However, there are few information about the cognitive profile of the Noonan syndrome. In this study, different aspects of cognition were assessed (intelligence, executive functions and visuo-construction ability) in a group of 28 patients with Noonan syndrome, including children and adults, by using Wechsler Intelligence Scales, Wisconsin Card Sorting Test and Rey Complex Figure Test. There was a variation of IQ between 59 and 119, besides better results in patients with mutation in PTPN11 gene. On the domain executive functions patients performed worse in categories achieved and cognitive flexibility, although no impairments in sustained attention. Patients showed important faults in planning of motor act in visuo-construction test and better results in the group of patients with mutation in SOS1 gene. Despite the relatively intact intelligence level, patients with Noonan syndrome showed significant impairments in other cognitive domains, indicating that neuropsychological assessment is important in clinical management of the syndrome and valiable resource of treatment planning
 
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Publishing Date
2016-09-22
 
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