nbahi15 writes "A report in the July 13th edition of the online Journal of Clinical Investigation has linked the aP2 protein to asthma and several other diseases. It also suggests a connection between the metabolic and immune systems and these diseases." From a related Forbes article: "To study the effects of aP2, the researchers created genetically engineered mice that could not produce the protein. 'They're metabolic supermice,' Hotamisligil said. 'We cannot make them obese, diabetic or atherosclerotic. They don't develop fatty liver disease, and they don't develop asthma.' In mice with an animal model of asthma, the researchers found that aP2 regulated the infiltration of inflammatory molecules into the lungs."