Serum HER-2 concentration is associated with insulin resistance and decreases after weight loss.
Palabras clave : 
Serum HER-2
Insulin resistance
Fecha de publicación: 
2010
Editorial : 
BioMed Central
ISSN: 
1743-7075
Cita: 
Fernandez-Real JM, Menendez JA, Fruhbeck G, Moreno-Navarrete JM, Vazquez-Martin A, Ricart W. Serum HER-2 concentration is associated with insulin resistance and decreases after weight loss. Nutr Metab (Lond) 2010 Feb 25;7:14.
Resumen
HER2/neu is a member of the epidermal growth factor receptor family easily detectable in the serum of cancer patients. We aimed to evaluate circulating HER-2 concentrations in association with insulin resistance in healthy and obese subjects. METHODS: Insulin sensitivity (minimal model) and serum HER-2 concentrations were evaluated in a cross sectional study in men (cohort 1, n = 167) and longitudinally after weight loss in obese subjects (cohort 2, n = 30). RESULTS: Serum HER-2 concentrations were positively associated with BMI and waist circumference (both r = 0.18, p = 0.02), post-load glucose (r = 0.28, p = 0.001) and fasting triglycerides (r = 0.26, p = 0.001); and negatively associated with insulin sensitivity (r = -0.29, p = 0.002, n = 109). Subjects with type 2 diabetes showed significantly increased soluble serum HER-2 concentrations. In different multivariate regression models, fasting triglycerides emerged as the factor that independently contributed to 10-11% of serum HER-2 variance.Serum HER-2 concentrations correlated significantly with fasting triglycerides and insulin sensitivity index in subjects from cohort 2. Weight loss led to a significant decrease of serum HER-2 concentrations. The change in serum HER-2 concentrations were significantly associated with the change in percent body fat and fasting triglycerides in young (below the median age of the cohort) subjects. CONCLUSIONS: Serum HER-2 concentrations might be implicated in the pathophysiology of insulin resistance and associated comorbidities.

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Nutrition & Metabolism 2010. 14.pdf
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