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Nutrición Hospitalaria
versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611
Resumen
ALLER, Rocío et al. Dietary intervention with 2 different fat profiles; role of the rs822393 variant in metabolic parameter changes. Nutr. Hosp. [online]. 2023, vol.40, n.1, pp.49-58. Epub 17-Abr-2023. ISSN 1699-5198. https://dx.doi.org/10.20960/nh.04205.
Introduction:
rs822393 is related to dietary intervention responses. The aim of our study was to analyze the metabolic effects of 2 hypocaloric diets with a different fat profile during 3 months according to the genetic variant rs822393.
Methods:
a population of 361 obese patients were randomly allocated to one of two diets; Diet P (enriched in polyunsaturated fatty acids) vs. Diet M (enriched in monounsaturated fatty acids). Adiposity and biochemical parameters were determined. rs822393 was assessed by real-time PCR, with a dominant model analysis (CC vs CT+TT).
Results:
genotype distribution was: 221 CC (61.2 %), 115 CT (31.9 %) and 25 TT (6.9 %). Basal and post-intervention HDL cholesterol, adiponectin levels and adiponectin/leptin ratio were lower in T-allele than non-T-allele carriers. After both diets, BMI, weight, fat mass, waist circumference, systolic blood pressure, insulin levels, HOMA-IR, leptin, total cholesterol and LDL-cholesterol improved significantly in both genotype groups. After Diet P, HDL-cholesterol (delta: 5.6 ± 1.1 mg/dl vs. 2.7 ± 0.9 mg/dl; p = 0.01), serum adiponectin (20.1 ± 2.9 ng/dl vs. 6.8 ± 3.0 ng/dl; p = 0.02) and adiponectin/leptin ratio (0.57 ± 0.1 units vs. 0.20 ± 0.08 units; p = 0.03) improved in non-T allele carriers. The same improvements were observed after Diet M: HDL-cholesterol (delta: 5.5 ± 0.8 mg/dl vs. 3.1 ± 0.9 mg/dl; p = 0.03), serum adiponectin (19.5 ± 2.9 ng/dl vs. 4.5 ± 2.8 ng/dl; p = 0.01), and adiponectin/leptin ratio (0.54 ± 0.1 units vs. 0.15 ± 0.08 units; p = 0.03). These parameters remained unchanged in T-allele carriers.
Conclusion:
after two different hypocaloric diets, obese subjects with the T allele of rs822393 did not improve their adiponectin levels, ratio adiponectin/leptin, and HDL-cholesterol, despite loss of weight.
Palabras clave : Hypocaloric diet; Dietary fat profile; rs822393.