Anti-vaxx group funds $250,000 study of vaccines and autism, with predictable results...
Namely, the study showed vaccines do *NOT* cause autism, and the anti-vaxx group is throwing a royal tantrum.
Oops! Anti-vaxxer group’s $250,000 study proves that vaccines don’t cause autism
Most experts today agree that the belief that childhood vaccines cause autism is based on bunk science. Even still, some advocacy groups claim immunizations are responsible for raising the risk for this neurodevelopmental condition, despite a growing body of research that shows there isn’t a link. (The study that most anti-vaccination groups point to was retracted after it was found to be based on falsified data.)
Despite the science, organizations involved in the anti-vaccine movement still hope to find some evidence that vaccines threaten children’s health. For example, the autism advocacy organization SafeMinds recently funded research it hoped would prove vaccines cause autism in children. But this effort appears to have backfired for the organization—whose mission is to raise awareness about how certain environmental exposures may be linked to autism—since the study SafeMinds supported showed a link between autism and vaccines does not exist.
Between 2003 and 2013, SafeMinds provided scientists from the University of Texas Southwestern School of Medicine, the University of Washington, the Johnson Center for Child Health & Development and other research institutions with approximately $250,000 to conduct a long-term investigation evaluating behavioral and brain changes of baby rhesus macaques that were administered a standard course of childhood vaccines. (The National Autism Association, another organization that has questioned vaccine safety, also provided financial support for this research.) The latest paper in the multiyear project was published Monday in the Proceedings of the National Academy of Sciences (PNAS). In it, the researchers concluded that vaccines did not cause any brain or behavioral changes in the primates.
The PNAS paper reports findings of the full-size study, conducted between 2008 and 2014 at the Washington National Primate Research Center, that occurred after the completion of an initial pilot program on 17 infant macaques. The full study involved 79 infant male macaques, aged 12 to 18 months, broken into six groups. Two groups received thimerosal-containing vaccines for a child’s complete vaccine schedule; two were given the measles, mumps and rubella (MMR) vaccine without TCVs; and two received saline injections as a control group. In each case, the monkeys were further split into subgroups: Half were on an accelerated vaccination schedule recommended by the U.S. Centers for Disease Control and Prevention in the 1990s, and half were on the recommended schedule from 2008.
Anti-vaccine activists have claimed that both the vaccines with thimerosal—a mercury-based antifungal and antiseptic preservative—and the MMR vaccines are linked to autism. Thimerosal was removed from most vaccines in the late 1990s. But the researchers wanted to study its potential health effects anyway.
The researchers then put the monkeys together in cages to see if they exhibited any new autistic-like social behaviors, such as fear, withdrawal, rocking, self-clasping and stereotypy (repetitive behavior). They reported that the monkeys’ behaviors remained unchanged. (Another paper by some of the same researchers, published in February in Environmental Health Perspectives, assessed the learning and social behaviors of the same group of monkeys and found the vaccines did not affect their development.)
For the PNAS paper, the researchers also conducted postmortem analyses of the primates’ brains after they had been euthanized. The team looked for brain abnormalities, including those in the volume and density of the cerebellum, amygdala and hippocampus regions, all of which have been shown to have some variations in children with autism. They also looked at the numbers and size of certain types of brain cells, known as Purkinje cells; some studies have shown there are fewer Purkinje cells in the brains of children with autism. The researchers say they didn’t find any marked differences in the brains of monkeys in the vaccine groups compared with those in the control group.
SafeMinds, the nonprofit that funded the research, is not happy with the results. Representatives from the group say the findings contradict both an earlier pilot study and interim progress reports the organization received from the researchers.
http://www.rawstory.com/2015/10/anti-vaxxer-group-pays-250000-for-study-showing-that-vaccines-dont-cause-autism/
= new reply since forum marked as read
