It links to the actual journal article (which can be read for free). On looking at that, it seems likely the phys.org article doesn't specify because neither d

It links to the actual journal article (which can be read for free). On looking at that, it seems likely the phys.org article doesn't specify because neither does the journal article. It just says that some of the genes are relevant to immune function or lipid metabolism, not what the differences imply for those things. It also mentions other things the identified genes relate to (mostly a nonspecific "development"), again without specifying what tangible differences might result beyond mentioning "developmental disorders".