Osés Recalde, Maddi

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Osés Recalde

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Maddi

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Agronomía, Biotecnología y Alimentación

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Now showing 1 - 4 of 4
  • PublicationOpen Access
    Identification of sociodemographic, biochemical and epigenetic biomarkers of hepatic steatosis in children with overweight or obesity
    (2022) Osés Recalde, Maddi; Labayen Goñi, Idoia; Ciencias de la Salud; Osasun Zientziak; Gobierno de Navarra / Nafarroako Gobernua
    La obesidad infantil se ha convertido en unos de los problemas más graves en materia de salud pública del siglo XXI. En las últimas dos décadas, y de forma paralela a la epidemia de la obesidad infantil, diferentes comorbilidades asociadas como las enfermedades cardiovasculares, la diabetes mellitus de tipo 2 y la enfermedad metabólica asociada al hígado graso (en inglés MAFLD; metabolic associated fatty liver disease) han aumentado su prevalencia en la población infantil. La MAFLD se ha convertido en la comorbilidad más frecuente de la obesidad infantil, siendo hoy en día a nivel mundial la primera causa de enfermedad hepática crónica en población pediátrica. La MAFLD puede progresar a esteatohepatitis y cirrosis, complicando su pronóstico y la reversibilidad de la patología. Sin embargo, su evolución asintomática, junto con la dificultad de su diagnóstico por tratarse de métodos costosos y/o invasivos (biopsia hepática y/o resonancia magnética), impiden su identificación y diagnóstico precoz. La evolución y progresión de la MAFLD pediátrica es compleja, multifactorial y no está del todo esclarecida. Ciertos polimorfismos genéticos y modificaciones epigenéticas, así como factores sociodemográficos y de estilo de vida se han relacionado con el desarrollo de esta enfermedad. Así, la identificación de los factores de riesgo de desarrollo de MAFLD, así como el estudio de biomarcadores de la enfermedad es crucial para su prevención y tratamiento temprano. En este sentido, asociaciones médicas y científicas subrayan la necesidad de desarrollar métodos de cribado útiles para la detección de la MAFLD pediátrica. Por ello, los objetivos de la presente Tesis Doctoral Internacional son: i) desarrollar un protocolo mínimamente invasivo y con alta capacidad predictiva, para la identificación de esteatosis hepática en niños/as con sobrepeso u obesidad, ii) analizar el papel de los miRNAs como biomarcadores de la obesidad infantil y de sus comorbilidades mediante un análisis sistematizado de los estudios publicados que identifican perfiles de miRNAs en la obesidad pediátrica y/o en sus comorbilidades asociadas, y iii) identificar miRNAs potencialmente marcadores de MAFLD y/o resistencia a la insulina en niños/as preadolescentes y estudiar su asociación con factores de riesgo metabólico. Para dar respuesta a estos objetivos se llevaron a cabo cuatro estudios en el contexto de tres proyectos de investigación: EFIGRO, PREDIKID y MICROKID. Las conclusiones de esta Tesis Doctoral son: i) los factores sociodemográficos y de estilos de vida como la pertenencia a una etnia minoritaria, la prematuridad, un elevado índice cintura-talla, el consumo de bebidas azucaradas, el tiempo de visualización de pantallas, y la baja capacidad cardiorrespiratoria están consistentemente asociados con la presencia de esteatosis hepática en niños/as con sobrepeso u obesidad, ii) los métodos de cribado de MAFLD pediátrica disponibles muestran una limitada precisión y aplicabilidad, iii) el índice HEPAKID es la primera herramienta de cribado basada en datos antropométricos, sociodemográficos y de estilos de vida capaz de identificar a niños/as con sobrepeso u obesidad con elevado riesgo de padecer esteatosis hepática, iv) los niveles elevados de triglicéridos (TG), HOMA-IR, alanina aminotransferasa (ALT), aspartato aminotransferasa (AST), gamma-glutamil transferasa (GGT) y ferritina en plasma, así como la presencia de alelos de riesgo de las variantes genéticas PPARGrs13081389, PPARGrs1801282, HFErs1800562 y PNLPLA3rs4823173 se asocian consistentemente con la presencia de esteatosis hepática en niños/as con sobrepeso u obesidad. Sin embargo, su capacidad predictiva es baja por lo que no son suficientes para el cribado de la MAFLD, v) el protocolo de predicción HEPAKID muestra una alta sensibilidad, especificidad y capacidad discriminatoria, así como con una mínima inversión de tiempo y de recursos económicos, para identificar la MAFLD en niños/as con sobrepeso u obesidad y que deben ser derivados a unidades especializadas para la confirmación del diagnóstico, vi) los miRNAs circulantes son biomarcadores prometedores de enfermedades asociadas a la obesidad como la MAFLD y la diabetes mellitus tipo 2. Sin embargo, no ha sido posible identificar un perfil de miRNAs concreto asociado con las comorbilidades mencionadas en niños/as con obesidad en la literatura científica actual, vii) el miRNA circulante miR-660-5p parece ser un biomarcador predictivo de la presencia de MAFLD en niños/as preadolescentes, independientemente de su peso corporal y viii) los miRNAs circulantes miR-320a, miR 142-3p, miR-190a-5p, miR-374a-5p y los de la familia let-7 podrían servir como potenciales biomarcadores de la resistencia a la insulina en población pediátrica.
  • PublicationOpen Access
    Effects of exercise in addition to a family-based lifestyle intervention program on hepatic fat in children with overweight
    (American Diabetes Association, 2020) Labayen Goñi, Idoia; Medrano Echeverría, María; Arenaza Etxeberría, Lide; Maiz, Edurne; Osés Recalde, Maddi; Martínez Vizcaíno, Vicente; Ruiz, Jonatan R.; Ortega, Francisco B.; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
    OBJECTIVE Pediatric hepatic steatosis is highly prevalent and closely related to type 2 diabetes. This study aimed to determine whether the addition of supervised exercise to a family-based lifestyle and psycho-educational intervention results in greater reduction of percentage of hepatic fat (HF), adiposity, and cardiometabolic risk factors in children with overweight/obesity. RESEARCH DESIGN AND METHODS The study subjects of this nonrandomized, two-arm, parallel design clinical trial were 116 overweight/obese children (10.6 +/- 1.1 years of age, 53.4% girls) living in Vitoria-Gasteiz (Spain). For 22 weeks, they followed either a lifestyle and psycho-education program (control intervention [CInt], N = 57), consisting of two family-based education sessions/month, or the same plus supervised exercise (intensive intervention [II], N = 59) focused mainly on high-intensity aerobic workouts (3 sessions/week, 90 min/session). The primary outcome was the change in percentage of HF (as measured by MRI) between baseline and the end of the intervention period. Secondary outcomes included changes in BMI, fat mass index (FMI), abdominal fat (measured by DEXA), blood pressure, triglycerides, HDL, LDL, gamma-glutamyl transferase, glucose, and insulin concentrations. RESULTS A total of 102 children completed the trial (N = 53 and N = 49 in the CInt and II groups, respectively). Percentage of HF decreased only in the II group (-1.20 +/- 0.31% vs. 0.04 +/- 0.30%, II and CInt groups, respectively), regardless of baseline value and any change in adiposity (P < 0.01). BMI, FMI, abdominal fat (P <= 0.001), and insulin (P < 0.05) were reduced in both groups. CONCLUSIONS Multicomponent intervention programs that include exercise training may help to reduce adiposity, insulin resistance, and hepatic steatosis in overweight/obese children.
  • PublicationOpen Access
    Dietary determinants of hepatic fat content and insulin resistance in overweight/obese children: a cross-sectional analysis of the Prevention of Diabetes in Kids (PREDIKID) study
    (Cambridge University Press, 2019) Arenaza Etxeberría, Lide; Medrano Echeverría, María; Osés Recalde, Maddi; Huybrechts, Inge; Díez, Ignacio; Henriksson, Hanna; Labayen Goñi, Idoia; Institute on Innovation and Sustainable Development in Food Chain - ISFOOD
    Pediatric non-alcoholic fatty liver disease (NAFLD) has increased in parallel with childhood obesity. Dietary habits, particularly products rich in sugars, may influence both hepatic fat and insulin resistance (HOMA-IR). The aim of the study was to examine the associations of the consumption of foods (cereals, fruits and vegetables, meat/meat products, dairy products, dairy desserts/substitutes (DDS) fish/shellfish, total and added sugars), sugar-sweetened beverages (SSB) and food components (macronutrients and fiber), on hepatic fat and HOMA-IR. Dietary intake (two non-consecutive 24h-recalls), hepatic fat (magnetic resonance imaging) and HOMA-IR were assessed in 110 children (10.6-1.1 years old) with overweight/obesity. Linear regression analyses were used to examine the associations of dietary intake with hepatic fat and HOMA-IR adjusted for potential confounders (sex, age, energy intake, maternal educational level, total and abdominal adiposity and sugar intake). The results showed that there was a negative association between cereal intake and hepatic fat (-0.197, P<0.05). In contrast, both SSB consumption (=0.217; P=0.028) and sugar in SSB (=0.210, P=0.035), but not DDS or sugar in DDS or other dietary components, were positively associated with hepatic fat regardless of potential confounders including total sugar intake. In conclusion, cereal intake might decrease hepatic fat, whereas SSB consumption and its sugar content may increase the likelihood of having hepatic steatosis. Although these observations need to be confirmed using experimental evidence, these results suggest that healthy lifestyle intervention programs are needed to improve dietary habits as well as to increase the awareness of the detrimental effects of SSB consumption early in life.
  • PublicationOpen Access
    A sociodemographic, anthropometric and lifestyle-based prediction score for screening children with overweight and obesity for hepatic steatosis: the HEPAKID index
    (Wiley, 2021) Osés Recalde, Maddi; Medrano Echeverría, María; Galbete Jiménez, Arkaitz; Arenaza Etxeberría, Lide; Ruiz, Jonatan R.; Sánchez-Valverde, Félix; Ortega, Francisco B.; Labayen Goñi, Idoia; Ciencias de la Salud; Osasun Zientziak
    Background: Hepatic steatosis (HS) is currently the most prevalent hepatic disease in paediatric population and a major risk factor for type 2 diabetes and cardiovascular diseases. The proper identification of children with HS is therefore of great public health interest. Objective: To develop a new prediction score using anthropometric, sociodemographic and lifestyle factors to identify children with HS (the HEPAKID index). Previously published biochemical paediatric screening tools were validated in the same cohort. Methods: A total of 115 pre-adolescent children aged 8 to 12 years with overweight/obesity, recruited at hospital paediatric units were enrolled in this cross-sectional study. HS (≥5.5% hepatic fat) was assessed by magnetic resonance imaging (MRI). Anthropometric, sociodemographic and lifestyle variables were collected by validated tests/questionnaires. Results: Forty-one children had MRI-diagnosed HS (35.6%, 49% girls). These children had (P <.01) a higher waist-height ratio, a lower cardiorespiratory fitness, a younger gestational age, and consumed more sugar-sweetened beverages than their HS-free peers. Children with HS were more likely to belong to an ethnic minority (P <.01) and to spend longer viewing screens than recommended (P <.05). The addition of these variables to the multivariate logistic regression model afforded a HEPAKID index with high discriminatory capacity (area under the receiver-operating characteristic curve: 0.808, 95% CI 0.715-0.901), and score of ≥25.0 was associated with high sensitivity (82%, 95% CI 68%-96%). Biochemical biomarker-based paediatric tools for identifying HS showed only moderate discriminatory capacity and low sensitivity (5%-41%) in this cohort. Conclusions: The HEPAKID index is the first simple, non-invasive, sensitive, inexpensive and easy-to-perform screening that can identify children with overweight or obesity who have HS.