Genetic Variations Affect Weight Loss, Regain, Eating Behavior

May 1st, 2012 by MorganDowney Leave a reply »

The Diabetes Prevention Program (DPP) is a highly publicized study comparing lifestyle intervention against metformin in preventing type 2 diabetes. It has been widely used by public health authorities to promote lifestyle changes over drugs in addressing obesity and type 2 diabetes. Delahanty LM and colleagues looked at genetic polymorphisms for an effect on short term and long term weight loss and weight regain. They found that the Ala allele at PPARG (think of this as the longitude and latitude for a gene variation) was associated with short term and long term – weight loss regardless of treatment. This study adds to the literature that genetic information can help identify those who can are more likely or less likely to benefit from intervention. PubMed:Genetic Predictors of weight loss, regain DPP

In a another trial, Look AHEAD, another obesity related risk allele at FTO rs1421085 significantly predicted more eating episodes per day. Variants within BDNF were significantly associated with more servings of dairy, meat, eggs, nut and beans. Another allele was associated with a significantly lower percentage of energy from protein. PubMed:Genetic alleles and dietary intake in Look AHEAD trial

 

Leave a Reply

*