For all those who've declared the autism-vaccine debate over a new scientific review begs to differ. It considers a host of peer-reviewed, published theories that show possible connections between vaccines and autism. The article in the Journal of Immunotoxicology is entitled Theoretical aspects of autism: Causes--A review." The author is Helen Ratajczak, surprisingly herself a former senior scientist at a pharmaceutical firm. Ratajczak did what nobody else apparently has bothered to do: she reviewed the body of published science since autism was first described in 1943. Not just one theory suggested by research such as the role of MMR shots, or the mercury preservative thimerosal; but all of them. Ratajczak's article states, in part, that "Documented causes of autism include genetic mutations and/or deletions, viral infections, and encephalitis following vaccination. Therefore, autism is the result of genetic defects and/or inflammation of the brain." The article goes on to discuss many potential vaccine-related culprits, including the increasing number of vaccines given in a short period of time. Ratajczak also looks at a factor that hasn't been widely discussed: human DNA contained in vaccines. Ratajczak reports that about the same time vaccine makers took most thimerosal out of most vaccines (with the exception of flu shots which still widely contain thimerosal), they began making some vaccines using human tissue. Why could human DNA potentially cause brain damage? The way Ratajczak explained it to me: "Because it's human DNA and recipients are humans. That DNA is incorporated into the host DNA. Now it's changed, altered self and body kills it. Where is this most expressed? The neurons of the brain. Now you have body killing the brain cells and it's an ongoing inflammation." We asked Ratajczak how she came to research the controversial topic. She told us that for years while working in the pharmaceutical industry, she was restricted as to what she was allowed to publish. "I'm retired now," she told CBS News. "I can write what I want."