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Rev. Inst. Med. Trop ; 18(1)jun. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1449255

ABSTRACT

El Síndrome de Aicardi-Goutieres (SAG) se caracteriza por una encefalopatía genética, progresiva, de inicio temprano, que se asocia a un proceso inflamatorio. Además del SNC, puede afectar a la piel, con erupciones tipo sabañones, y presentar microcefalia, talla baja, disfunción hepática, disfunción tiroidea, reactantes de fase aguda elevados, anticuerpos autoinmunes positivos y asociaciones para enfermedades sistémicas autoinmunes como él LES. El SAG presenta locus heterogénicos, con mutaciones identificadas en los genes que codifican el exonucleasa TREX1 3´â†’5´ y las tres subunidades del complejo de endonucleasa RNASEH2. Se presenta el caso de una paciente de 2 años de edad, con retraso del desarrollo psicomotor, sin otras manifestaciones sistémicas, diagnosticada como SAG, con variante c.529G(A (p.Ala177Thr) con efecto patogénico en homocigosis en el gen RNASEH2B.


Aicardi-Goutieres Syndrome (AGS) is characterized by an early-onset, progressive, genetic encephalopathy associated with an inflammatory process. In addition to the CNS, it can affect the skin, with chilblain-like eruptions, and present with microcephaly, short stature, liver dysfunction, thyroid dysfunction, elevated acute phase reactants, positive autoimmune antibodies, and associations for autoimmune systemic diseases such as SLE. SAG presents heterogeneous loci, with mutations identified in the genes encoding the TREX1 3'→5' exonuclease and the three subunits of the RNASEH2 endonuclease complex. We present the case of a female 2-year-old patient, with delayed psychomotor development, without other systemic manifestations, diagnosed as SAG, with variant c.529G>A (p.Ala177Thr) with a pathogenic effect in homozygosis in the RNASEH2B gene.

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