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Clin Investig Arterioscler ; 36(4): 229-233, 2024.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-38443216

RESUMO

Sitosterolemia is an autosomal recessive and very rare disease. Its main characteristic is that there is a greater absorption and a decrease in the excretion of sterols, which leads to them being deposited in tissues. It is given by mutations in the ABCG5 or ABCG8 genes found on chromosome 2p21. In this clinical note, we describe the first two patients with familial sitosterolemia described in Colombia, brothers, one of them with xanthomas in extremities as the only symptom, and the other, completely asymptomatic. Genetic studies were performed as a diagnostic test in both patients, where a pathogenic homozygous variant could be identified in the ABCG8 gene in the first case (symptomatic), and a heterozygous variant in the ABCG8 gene in the second case (asymptomatic); the first patient has responded to treatment with ezetimibe. In conclusion, xanthomas should be studied in depth in pediatric age as they may be the only visible sign of such complex and hereditary diseases as familial sitosterolemia, which can be controlled and prevent cardiovascular complications of the disease.


Assuntos
Membro 8 da Subfamília G de Transportadores de Cassetes de Ligação de ATP , Ezetimiba , Hipercolesterolemia , Enteropatias , Erros Inatos do Metabolismo Lipídico , Fitosteróis , Humanos , Erros Inatos do Metabolismo Lipídico/genética , Erros Inatos do Metabolismo Lipídico/diagnóstico , Masculino , Colômbia , Fitosteróis/efeitos adversos , Fitosteróis/genética , Enteropatias/genética , Enteropatias/diagnóstico , Membro 8 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/genética , Hipercolesterolemia/genética , Hipercolesterolemia/tratamento farmacológico , Hipercolesterolemia/diagnóstico , Ezetimiba/uso terapêutico , Xantomatose/genética , Xantomatose/patologia , Xantomatose/diagnóstico , Anticolesterolemiantes/uso terapêutico , Anticolesterolemiantes/administração & dosagem , Mutação , Membro 5 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/genética , Homozigoto , Criança , Heterozigoto , Lipoproteínas/genética
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