Obesity polymorphisms identified in genome-wide association studies interact with n-3 polyunsaturated fatty acid intake and modify the genetic association with adiposity phenotypes in Yup’ik people

Table 2 Distribution of the RBC nitrogen stable isotope ratio (δ¹⁵N)

Isotope ratios are presented as delta values in “permil” relative to atmospheric nitrogen: δ¹⁵N = [(¹⁵N/¹⁴Nsample − ¹⁵N/¹⁴Nstandard)/(¹⁵N/¹⁴Nstandard)] × 1,000 ‰. The relationship between δ¹⁵N and EPA follows the linear model: EPA (%RBC fatty acid) = 1.04 × δ¹⁵N − 6.7 ‰, as previously described for this population (O’Brien et al. 2009)

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