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BMC Neurol ; 19(1): 146, 2019 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-31253122

RESUMO

BACKGROUND: Familial amyloid polyneuropathy (FAP) or ATTRv (amyloid TTR variant) amyloidosis is a fatal hereditary disease characterized by the deposition of amyloid fibrils composed of transthyretin (TTR). The current diagnosis of ATTRv relies on genetic identification of TTR mutations and on Congo Red-positive amyloid deposits, which are absent in most ATTRv patients that are asymptomatic or early symptomatic, supporting the need for novel biomarkers to identify patients in earlier disease phases allowing disease control. METHODS: In an effort to search for new markers for ATTRv, our group searched for nine inflammation markers in ATTRv serum from a cohort of 28 Brazilian ATTRv patients. RESULTS: We found that the levels of six markers were increased (TNF-α, IL-1ß, IL-8, IL-33, IFN-ß and IL-10), one had decreased levels (IL-12) and two of them were unchanged (IL-6 and cortisol). Interestingly, asymptomatic patients already presented high levels of IL-33, IL-1ß and IL-10, suggesting that inflammation may take place before fibril deposition. CONCLUSIONS: Our findings shed light on a new, previously unidentified aspect of ATTRv, which might help define new criteria for disease management, as well as provide additional understanding of ATTRv aggressiveness.


Assuntos
Neuropatias Amiloides Familiares/sangue , Neuropatias Amiloides Familiares/imunologia , Biomarcadores/sangue , Inflamação/sangue , Inflamação/imunologia , Brasil , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
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