RT Journal Article T1 A Multi-Omics Approach Reveals New Signatures in Obese Allergic Asthmatic Children. A1 Gomez-Llorente, Mª Amelia A1 Martínez-Cañavate, Ana A1 Chueca, Natalia A1 Rico, Mª de la Cruz A1 Romero, Raquel A1 Anguita-Ruiz, Augusto A1 Aguilera, Concepción Mª A1 Gil-Campos, Mercedes A1 Mesa, Maria D A1 Khakimov, Bekzod A1 Morillo, Jose Antonio A1 Gil, Ángel A1 Camacho, José A1 Gomez-Llorente, Carolina K1 asthma K1 gastrointestinal microbiome K1 metabolomics K1 multi-omics approach AB Background: Asthma is a multifactorial condition where patients with identical clinical diagnoses do not have the same clinical history or respond to treatment. This clinical heterogeneity is reflected in the definition of two main endotypes. We aimed to explore the metabolic and microbiota signatures that characterize the clinical allergic asthma phenotype in obese children. Methods: We used a multi-omics approach combining clinical data, plasma and fecal inflammatory biomarkers, metagenomics, and metabolomics data in a cohort of allergic asthmatic children. Results: We observed that the obese allergic asthmatic phenotype was markedly associated with higher levels of leptin and lower relative proportions of plasma acetate and a member from the Clostridiales order. Moreover, allergic children with a worse asthma outcome showed higher levels of large unstained cells, fecal D lactate and D/L lactate ratio, and with a higher relative proportion of plasma creatinine and an unclassified family member from the RF39 order belonging to the Mollicutes class. Otherwise, children with persistent asthma presented lower levels of plasma citrate and dimethylsulfone. Conclusion: Our integrative approach shows the molecular heterogeneity of the allergic asthma phenotype while highlighting the use of omics technologies to examine the clinical phenotype at a more holistic level. SN 2227-9059 YR 2020 FD 2020-09-18 LK https://hdl.handle.net/10668/24786 UL https://hdl.handle.net/10668/24786 LA en DS RISalud RD Apr 7, 2025