Mark Hutchinson, research fellow at the University of Adelaide School of Medical Sciences, said his team has come up with evidence that an immune response in the brain was involved in responses to alcohol.
http://ummid.com/news/2011/October/01.10.2011/immune_cells_n_alcohol.htm
http://ummid.com/news/2011/October/01.10.2011/immune_cells_n_alcohol.htm