Jaime Alberto Bricio-barrios , Mario Del Toro-equihua , Miguel Huerta , Mónica Ríos-silva , Yolitzy Cárdenas , Marisa López , Alfredo Saavedra-molina , Zorayda Urzúa , Mónica Ortiz-mesina , Felipa Andrade-urzúa , Jonathan Alexis García-contreras , Xochitl Trujillo

Introduction: CD36 is a membrane protein that functions as a lingual receptor for lipids. The soluble CD36 fraction (sCD36) may correlate oral fatty acid fat taste sensitivity to body mass index (BMI) and adiposity. Objectives: To determine if the oral fatty acid taste sensitivity in healthy young individuals of both sexes is related to serum sCD36 levels, adiposity, and BMI. Methods: A cross-sectional study was conducted in 72 healthy young individuals (18-25 years). Serum sCD36 was quantified for all subjects. Oral fatty acid taste sensitivity was determined using an ascending series of the three-Alternate Forced Choice methodology. Additionally, BMI was calculated using anthropometry, and adiposity was determined by bioelectric impedance analysis. Results: There was a positive correlation between BMI and the oral fatty acid taste sensitivity threshold (r=0.277, p<0.05) and a negative correlation between BMI and serum sCD36 levels (r=−0.035, p<0.01). Adiposity negatively correlated with the sCD36 levels only in women (r=−0.359, p<0.05). The threshold for oral sensitivity to fatty acids in overweight individuals was 1.0 (IQR 1.16) mM vs. 0.2 (IQR 0.29) mM in healthy weight individuals (p<0.05), while sCD36 levels were 26.1 (IQR 32.9) and 77.97 (IQR 560.66) in overweight and normal weight individuals, respectively (p<0.05). Conclusions: BMI positively correlates with the oral sensitivity threshold of fatty acids and negatively correlates with serum sCD36 levels. The threshold of oral sensitivity to fatty acids was significantly higher in overweight subjects, while sCD36 levels were significantly higher in the group of normal weight individuals. Keywords: sCD36, fat acid taste sensitivity, BMI, healthy young individuals, body mass index, adiposity.

sCD36, fat acid taste sensitivity, BMI, healthy young individuals, body mass index, adiposity.

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