Resumen
Introducción: el sobrepeso (SP) y la obesidad (OB) son un problema prioritario de salud tanto en México como en el mundo, caracterizados por un estado inflamatorio crónico de bajo grado, que se consideran factores de riesgo cardiovascular. El índice leuco-glucémico (ILG) es un cociente empleado como factor pronóstico de complicaciones en pacientes con enfermedades vasculares.
Objetivo: evaluar la utilidad del ILG como marcador de inflamación y disfunción endotelial en pacientes con SP y OB.
Material y métodos: estudio transversal comparativo en 124 derechohabientes de la UMF 80 de IMSS. Se incluyó a adultos jóvenes entre 18 y 50 años, con IMC entre 18.5 y 40 kg/m2, sin diagnóstico de enfermedades crónicas, autoinmunidades o inmunodeficiencias, a quienes se realizó: impedancia bioeléctrica (peso, talla, IMC, porcentaje de grasa corporal y muscular) y recolección de muestra sanguínea (biometría, glucosa, lípidos, marcadores de inflamación y disfunción endotelial). Los pacientes se agruparon de acuerdo con su IMC en: OB y eutrófico (EUT).
Resultados: el ILG fue mayor en OB y SP respecto a EUT. El ILG correlacionó positivamente con marcadores de inflamación: IL-6, TNF-α y disfunción endotelial: FvW. Se estimó punto de corte para ILG ≥ 405 con curva ROC [AUC (0.751), IC95%, p = 0.028], para presencia de inflamación y DFE.
Conclusiones: el ILG tiene valor como marcador predictivo de enfermedad cardiovascular al reflejar inflamación y disfunción endotelial en pacientes con SP y OB.
Abstract
Background: Overweight (OW) and obesity (OB) are major health problems both in Mexico and the world. Because of the chronic low-grade inflammatory state that characterizes OW and OB, they are considered as cardiovascular risk factors. The leuko-glycemic index (LGI) is a ratio used as a prognostic factor to predict complications in patients with vascular diseases.
Objective: To assess the utility of LGI index as an inflammatory and endothelial dysfunction marker in patients with OW and OB.
Material and methods: Comparative cross-sectional study in 124 patients of Family Medicine Unit 80 of Mexican Social Security Institute. Young adults aged between 18-50 years old, and BMI between 18.5 and 40 kg/m2, without diagnosis of chronic diseases, auto immunities or immunodeficiencies were included. Bioelectrical impedance (weight, height, BMI, % body fat, lean mass) and blood sample (blood count, glucose, lipid profile, inflammatory, endothelial dysfunction markers) were assessed. Patients were grouped according to their BMI: OB, OW and normal weight (NW).
Results: LGI was found to be significantly elevated in OB and OW patients vs. NW. The LGI correlated positively with inflammation and DE markers: IL-6, TNF-α, vWF. A value ≥ 405 was estimated with ROC curves as cut-off point for LGI to predict the likelihood of inflammation and ED in OW and OB patients.
Conclusions: ILG is relevant as a predictive marker of cardiovascular disease by reflecting inflammation and endothelial dysfunction in patients with OW and OB.
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