Chemicals produced by a pregnant woman's immune system may alter the size of several key brain regions in her adult child diagnosed with schizophrenia, according to a study published in August in Schizophrenia Research.In particular, the higher the level of an immune molecule called interleukin-8 (IL-8) in a pregnant woman's blood, the more severe the anatomical changes seen in brain scans of her adult child, the study suggests.Read more at...SFARI, October 2010.