Blaurock-Busch et ASD 44 Exposure to mercury Statistically al. [54] Controls 146 and other heavy significant Maedica (Buchar) metals in children differences in the 3-9 y with autism mean urine levels of spectrum disorders mercury versus controls Baby Teeth Adams et al. ASD 15 Level of mercury, Children with autism J Toxicol Environ Controls 11 lead, and zinc in had significantly Health A [55] baby teeth in autism (2.1-fold) higher 4-9 y vs. controls levels of mercury RBC+ red blood cells; GST=glutathione-s-transferase; DMSA=2, 3-dimercaptosuccinic acid; y= years of age 5. Body Tissue Studies that did Find Significantly Different Mercury Levels in ASD vs. Healthy Controls not Type of Study Authors and N Purpose of Study Findings Journal Age Hair De Palma et al. ASD 44 Hair toxic metals in Found no [56] Controls 61 autism vs. controls association J Aut Dev between autism Disord Children and hair mercury Hair and blood Ip et al. [57] ASD 82 Hair and No difference in J Child Neurol Controls 55 mercury levels and the mean mercury autism levels ASD mean 7.2 y Controls mean 7.8 y
Blaurock-Busch et al. [54] Maedica (Buchar) ASD 44 Controls 146 3-9 y Exposure to mercury and other heavy metals in children with autism spectrum disorders versus controls Statistically significant differences in the mean urine levels of mercury Baby Teeth Adams et al. J Toxicol Environ Health A [55] ASD 15 Controls 11 4-9 y Level of mercury, lead, and zinc in baby teeth in autism vs. controls Children with autism had significantly (2.1-fold) higher levels of mercury RBC+ red blood cells; GST=glutathione-s-transferase; DMSA=2, 3-dimercaptosuccinic acid; y= years of age 5. Body Tissue Studies that did not Find Significantly Different Mercury Levels in ASD vs. Healthy Controls Type of Study Authors and Journal N Age Purpose of Study Findings Hair De Palma et al. [56] J Aut Dev Disord ASD 44 Controls 61 Children Hair toxic metals in autism vs. controls Found no association between autism and hair mercury Hair and blood Ip et al. [57] J Child Neurol ASD 82 Controls 55 ASD mean 7.2 y Controls mean 7.8 y Hair and mercury levels and autism No difference in the mean mercury levels