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Abstract: Alport syndrome (AS) is a clinically and genetically heterogeneous disorder with a wide phenotypic spectrum, onset, and progression. X-linked AS (XLAS) and autosomal recessive AS (ARAS) are severe conditions, whereas the severity of autosomal dominant AS (ADAS) may vary from benign familial hematuria to progressive renal disease with extra-renal manifestations. In this study, we collated information from the literature and analyzed a cohort of 317 patients with ADAS carrying heterozygous disease-causing mutations in COL4A3/4 including four patients from two unrelated families who carried two novel variants in COL4A3. Regarding the age of onset of the disease, 80% of patients presented urinalysis alterations (microhematuria, hematuria, and/or proteinuria) before the age of 40 years. The cumulative probability of suffering adverse renal events was mainly observed between 30 and 70 years, without statistical differences between COL4A3 and COL4A4. We observed statistically significant differences between the sexes in the age of developing ESKD in cases affected by mutations in COL4A3/4 (p value = 0.0097), suggesting that males begin experiencing earlier deterioration of renal function than women. This study supports the importance of follow-up in young patients who harbor pathogenic mutations in COL4A3/4. We update the knowledge of ADAS, highlighting differences in the progression of the disease between males and females.
Fuente: Journal of clinical medicine 2022, 11, 4883
Fecha de publicación: 19/08/2022
Nº de páginas: 12
Tipo de publicación: Artículo de Revista
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GARCÍA-AZNAR, JOSÉ MARÍA
HIGUERA, LUIS DE LA
BESADA CERECEDO, LARA
GANDIAGA, NEREA PAZ
VEGA, ANA ISABEL
GEMA FERNANDEZ FRESNEDO
DOMINGO GONZALEZ-LAMUÑO LEGUINA