Noonan syndrome patients beyond the obvious phenotype: A potential unfavorable metabolic profile

Autor: Michelle Bianchi de Moraes, Edoarda Vasco de Albuquerque Albuquerque, Alexander A. L. Jorge, Natalia Torres, Elisangela P S Quedas, Alexsandra C. Malaquias, R.M. Noronha, Débora Romeo Bertola, Sandra M.F. Villares, Mariana F A Funari, Thais Kataoka Homma
Rok vydání: 2020
Předmět:
Zdroj: American journal of medical genetics. Part AREFERENCES. 185(3)
ISSN: 1552-4833
Popis: Noonan syndrome (NS) and NS related disorders (NRD) are frequent monogenic diseases. Pathogenic variants in PTPN11 are observed in approximately 50% of these NS patients. Several pleiotropic phenotypes have previously been described in this condition. This study aimed at characterizing glucose and lipid profiles in patients with NS/NRD. We assessed fasting blood glucose, insulin, cholesterol (total and fractions), and triglyceride (TG) levels in 112 prepubertal children and 73 adults. Additionally, an oral glucose tolerance test (OGTT) was performed in 40 children and 54 adults. Data were analyzed between age groups according to the presence (+) or absence (-) of PTPN11 mutation. Prepubertal patients with NS/NRD were also compared with a control group. Despite the lean phenotype of children with NS/NRD, they presented an increased frequency of low HDL-cholesterol (63% in PTPN11+, 59% in PTPN11- and 16% in control, p
Databáze: OpenAIRE