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Advisor(s)
Abstract(s)
A dislipidemia é um distúrbio do perfil lipídico, seja por elevação ou
diminuição de partículas lipídicas. O objetivo deste trabalho é fazer uma
revisão dos casos com dislipidemia rara em estudo no Instituto Nacional
de Saúde Doutor Ricardo Jorge, apresentando os dados clínicos e moleculares
mais relevantes. O perfil lipídico foi determinado para cada caso
índex e familiares e o estudo molecular dos genes envolvidos foi realizado
por amplificação por PCR e sequenciação de Sanger. Foram estudados,
ou está em curso o estudo, de 14 casos índex com os seguintes diagnósticos
clínicos: Deficiência familiar em lipoproteína lípase (3), Lipodistrofia
familiar parcial de Dunningan Tipo 2 (1), Deficiência em lípase ácida lisossomal
(3), Abeta/hipobetalipoproteinemia (2), Deficiência em HDL (1),
Hipertrigliceridemia autossómica recessiva (3), Sitosterolemia (1). O fenótipo
clínico de cada caso índex é variável dependendo de cada condição.
Foi encontrada a causa genética da doença em 8/14 doentes, estando
os restantes ainda em estudo. Doentes com as várias dislipidemias raras
apresentadas têm um risco acrescido de ter outras doenças graves como
pancreatite, doença cardiovascular ou complicações neurológicas e
devem, por esta razão, ser identificados o mais precocemente possível,
de forma a minimizar ou prevenir os efeitos nefastos destas condições.
Dyslipidemia is a disorder of lipid metabolism, characterized by either an increase or decrease in lipid particles. The aim of this study is to review all cases with rare dyslipidemia, studied in the National Health Institute of Portugal, presenting the most relevant clinical and molecular data. Lipid profile was determined for each index case and relatives, and molecular analysis of the genes involved was performed by PCR amplification and Sanger sequencing. This study includes 14 index cases, with the following clinical diagnoses: Familial lipoprotein lipase deficiency (3), Familial partial lipodystrophy, Dunningan Type 2 (1), Lysosomal acid lipase deficiency (3), Abeta / hypobetalipoproteinemia (2), HDL deficiency (1), Autosomal recessive hypertriglyceridemia (3), Sitosterolaemia (1). The clinical phenotype of each index case varies depending on each condition. It was possible to find the genetic cause of the disease in 8/14 patients, and the remaining are still under study. Patients with the rare dyslipidemias presented have an increased risk of having other serious disorders such as pancreatitis, cardiovascular disease or neurological complications and should, therefore, be identified as early as possible in order to minimize or prevent the adverse effects of these conditions.
Dyslipidemia is a disorder of lipid metabolism, characterized by either an increase or decrease in lipid particles. The aim of this study is to review all cases with rare dyslipidemia, studied in the National Health Institute of Portugal, presenting the most relevant clinical and molecular data. Lipid profile was determined for each index case and relatives, and molecular analysis of the genes involved was performed by PCR amplification and Sanger sequencing. This study includes 14 index cases, with the following clinical diagnoses: Familial lipoprotein lipase deficiency (3), Familial partial lipodystrophy, Dunningan Type 2 (1), Lysosomal acid lipase deficiency (3), Abeta / hypobetalipoproteinemia (2), HDL deficiency (1), Autosomal recessive hypertriglyceridemia (3), Sitosterolaemia (1). The clinical phenotype of each index case varies depending on each condition. It was possible to find the genetic cause of the disease in 8/14 patients, and the remaining are still under study. Patients with the rare dyslipidemias presented have an increased risk of having other serious disorders such as pancreatitis, cardiovascular disease or neurological complications and should, therefore, be identified as early as possible in order to minimize or prevent the adverse effects of these conditions.
Description
Keywords
Doenças Raras Doenças Genéticas Doenças Degenerativas Dislipidemia Saúde Pública Portugal
Pedagogical Context
Citation
Boletim Epidemiológico Observações. 2015;5(Supl 7):52-56
Publisher
Instituto Nacional de Saúde Doutor Ricardo Jorge, IP
