Mice Cured of Autism
noahisaac writes "My brother just sent me an article he posted for the Rett Syndrome Research Foundation about a cure for Rett Syndrome, a form of autism. According to the article, researchers successfully re-introduced a fully functional version of the MECP2 gene into mice that had been born with damaged MECP2 genes. Contrary to their expectations, the mice improved. In the article's words, 'restoration of fully functional MECP2 over a four week period eradicated tremors and normalized breathing, mobility and gait in mice that had previously been fully symptomatic and, in some cases, only days away from death.' The ramifications for people suffering from Rett Syndrome are obvious, but mutations of the MECP2 gene are also believed to be the cause of 'classic' autism, and a number of other neurological disorders."
MECP2 as "the cause" of autism is overblown-- scientists have isolated several genetic areas that are somewhat probable contributors toward developing autism, but
1. Autism is definitely caused by the contributions of many genes;
2. There are various ways autism presents itself- presumably due to varying genetic contributions. Rett Syndrome is (in my understanding) an atypically (genetically) simple form of autism.
Here is the source of this info.
is this the cause of the difference between heavy metal poisoning causing autism and genetics causing autism
It's not been shown that heavy metal poisoning causes autism. Poisoning with lead or mercury can have neurological symptoms that are similar to autism, but removing the heavy metal and flushing it from the body causes rapid improvement in the poisoning patients, while autism has no cure. The mistaken belief that they're the same thing led a lot of parents to stop immunizing, despite every single reproducible study showing no link between the mercury-based compound that used to be found in such immunizations and autism. To wit, autism continues to gradually become more common despite the fact that mercury has now been completely removed from childhood vaccines.
The only statistically significant environmental link found so far to the onset of true autism cases that I've seen was a study that showed that the rollout of cable television appeared to be correlated to a moderate rise in autism in the neighborhoods and time periods of the rollout during the 80's.
E pluribus unum