The Developmental Origins of Obesity

Pregestational obesity (PGO, BMI ≥30) is a significant independent risk factor for the development of obesity in childhood and adolescence. Notably, elevated levels of IL-6 and leptin have been found in the cord blood of offspring born to women with PGO, along with increased body fat. Both our research and that of others have shown an upregulation of pro-inflammatory genes in cord blood monocytes and alterations in innate immune function, including a blunted response to pro-inflammatory stimuli. However, it remains unclear whether these effects are due to an altered immune response in differentiated immune cells or if they are programmed earlier in gestation, during the progenitor cell stage. Long-chain polyunsaturated fatty acids (LCPUFAs) are crucial for cellular function, acting as precursors to membrane components and signaling molecules involved in cardiovascular, metabolic, and immune processes. Modern dietary patterns have led to a relative deficiency in n-3 LCPUFAs, such as Docosahexaenoic acid (DHA) and Eicosapentaenoic acid (EPA). As a result, international health guidelines recommend LCPUFA supplementation during pregnancy. Studies have shown that increased intake of n-3 LCPUFAs during pregnancy exerts effective anti-inflammatory effects in the maternal circulation, adipose tissue, and placenta. The recently completed MIGHT study (NCT02574767), which involved 1005 women with overweight or PGO, investigated the effects of DHA supplementation during pregnancy (200 …

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Paola Casanello, Ph.D.  ·  +56 223548119  ·  pcasane@uc.cl

Ivone Vargas  ·  +56223542397  ·  eticadeinvestigacion@uc.cl

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