2009 10 11 Biological Plausibility of a Relationship between Vaccines and Autism
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This is the presentation of David Berger, MD, FAAP, to the Autism Research Institute/Defeat Autism Now! General Session in Dallas Texas, October 12, 2009
2009 10 11 Biological Plausibility of a Relationship between Vaccines and Autism
1. The Biological Plausibility of a Relationship between Vaccines and Autism Spectrum Disorders David Berger, MD Medical Director Wholistic Pediatrics Tampa, FL (813) 960-3415 www.wholisticpeds.com Defeat Autism Now! Fall Conference Dallas, TX October 2009
6. “ The developing fetus and young children are thought to be disproportionately affected by mercury exposure, because many aspects of development, particularly brain maturation, can be disturbed by the presence of mercury. Minimizing mercury exposure is, therefore, essential to optimal child health ….. Mercury in all of its forms is toxic to the fetus and children , and efforts should be made to reduce exposure to the extent possible to pregnant women and children as well as the general population .” MERCURY Statement: Pediatrics 2001 Jul, American Academy of Pediatrics: Committee on Environmental Health.
7. Vaccine inserts would typically say “0.01% thimerosal as a preservative”, which to anyone would sound like an extremely small amount. When called to testify in front of the Institute of Medicine, an independent group formed by our government to monitor safety issues, Dr. Neil Halsey of Johns Hopkins University and head of the vaccine recommendation committee that reports to the CDC, went on record as saying “No one ever did the math…. No one knows what dose of mercury, if any, from vaccines is safe. We can say there is no evidence of harm but the truth is no one has looked ” Thimerosal/Mercury in Vaccines
12. Type Name Manufacturer mcg mercury DTaP Tripedia Sanofi Pasteur ≤0.3 DT No Name (single) Sanofi Pasteur ≤0.3 DT No Name (multi ) Sanofi Pasteur 25 Td No Name Mass Public Health 8.3 Td Decavac Sanofi Pasteur ≤0.3 TT No Name Sanofi Pasteur 25 Hep A/B Twinrix GlaxoSmithKline ≤1 Influenza Afluria multi dose CSL 24.5 Influenza Fluzone –Full dose for 3y) Sanofi Pasteur 25 Influenza Fluzone – ½ dose < 3y/o) Sanofi Pasteur 25 Influenza Fluvirin Novartis 25 Influenza Fluvirin (Prsv Free) Novartis ≤1 Influenza Fluarix GlaxoSmithKline ≤1 Influenza FluLaval ID Biomedical 25 Jap Enceph. JE-VAX Osaka Univ. 17.5 -35 Meningococus Menomune (multidose) Sanofi Pasteur 25 Updated full table maintained in “Vaccine” Section at www.wholisticpeds.com Previous tables dating back to 2000 are also presented. Vaccines that Still Contain Mercury
13. On average, for each 1000 lb of environmentally released mercury, there was a 43% increase in the rate of special education services and a 61% increase in the rate of autism. Palmer et al. Health & Place 12 (2006) 203–209 Total toxicity Autism rates Proximity to point sources of environmental mercury release as a predictor of autism prevalence. Palmer et al. Health & Place 2008
18. SAM SAH MTase SAHH Homocysteine B6 THF MS CBS B12 Protein synthesis BHMT Choline Betaine Effect of Oxidative Stress on Methionine Transsulfuration THF: tetrahydrofolate 5-CH 3 THF Methylation of DNA, RNA, proteins, membrane phospholipids, creatine, neurotransmittors Cystathionine Cysteine GSH GSSG Methionine Adenosine ( AK and/or ADA) MAT B6
19. Neurotoxicity of Thimerosal in Human Brain Cells is Associated with Glutathione Depletion: Protective Effect of Cysteine or Glutathione Supplementation Neurotoxicology. 2005 Jan;26(1):1-8 S. Jill James, William Slikker, Elizabeth New, Stefanie Jernigan, Stepan Melnyk Department of Pediatrics University of Arkansas for Medical Sciences Little Rock, AR
20. 0 2.5 5 10 20 VIABILITY OF GLIOBLASTOMA AND NEUROBLASTOMA CELLS WITH INCREASING DOSE OF THIMEROSAL Viability (MTT OD) Glioblastoma Cells Neuroblastoma Cells ( 48 hr Exposure ) ( 3 hr Exposure ) 0 2.5 5 10 20 0 2.5 5 10 20 M Thimerosal M Thimerosal
21. Control Thimerosal +GSH + Cystine +NAC + Methionine O.D. (Viability) Viability of Glioblastoma cells exposed to 15 M Thimerasol in the presence of GSH-ester, Cystine, N-acetylcysteine (NAC), or Methionine
22. Control Thimerosal +GSH + Cystine +NAC + Methionine O.D. (Viability) Viability of Neuroblastoma cells exposed to 15 M Thimerosal Pretreated with 100 M GSH-ester, Cystine, N-acetylcysteine (NAC), or Methionine
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24. Jill James, 2004 Assessment of Single Nucleotide Polymorphins in Children with Autism vs. Controls
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26. Some Children with Autism Do Not Clear Mercury Mercury in first-cut baby hair of children with autism versus typically-developing children J. B. Adams; J. Romdalvik; K. E. Levine; Lin-Wen Hu (Arizona State University) Toxicological & Environmental Chemistry , May 2, 2008 Children with autism were examined to determine amounts of mercury (Hg) in their baby hair and the factors that might affect Hg body burden. US children with autism (n = 78) and matched controls (n = 31) born between 1988 and 1999 were studied . Hg in first-cut baby hair was determined using cold vapor atomic fluorescence spectrometry (CVAFS). Twenty samples were split and also measured with Neutron Activation Analysis (NAA). Logistic regression analysis showed that compared to children with higher levels of mercury (above 0.55 mcg g-1), children with lower levels of mercury in their hair (below 0.55 mcg g-1) were 2.5-fold more likely to manifest with autism . Children with autism had similar mercury exposure as controls from maternal seafood and maternal dental amalgams. Children with autism also had 2.5-fold higher incidence of oral antibiotic use during their first 18 months of life. Their mothers were possibly more likely to use oral antibiotics during pregnancy or nursing. The amount of Hg in the baby hair of children with autism showed a significant correlation with the number of maternal dental amalgams. The lower level of Hg in the baby hair of children with autism indicates an altered metabolism of Hg, and may be due to a decreased ability to excrete Hg. This is consistent with usage of higher amounts of oral antibiotics, which are known to inhibit Hg excretion in rats due to alteration of gut flora, and may exert a similar effect in humans. Higher usage of oral antibiotics in infancy may also partially explain the high incidence of chronic gastrointestinal problems seen in individuals with autism.
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29. Mitochondrial Dysfunction and Autism Evidence of Mitochondrial Dysfunction in Autism and Implications for Treatment Daniel A. Rossignol, J. Jeffrey Bradstreet, International Child Development Resource Center Abstract: Classical mitochondrial diseases occur in a subset of individuals with autism and are usually caused by genetic anomalies or mitochondrial respiratory pathway deficits. However , in many cases of autism, there is evidence of mitochondrial dysfunction (MtD) without the classic features associated with mitochondrial disease . MtD appears to be more common in autism and presents with less severe signs and symptoms. It is not associated with discernable mitochondrial pathology in muscle biopsy specimens despite objective evidence of lowered mitochondrial functioning. Exposure to environmental toxins is the likely etiology for MtD in autism . This dysfunction then contributes to a number of diagnostic symptoms and comorbidities observed in autism including: cognitive impairment, language deficits, abnormal energy metabolism, chronic gastrointestinal problems, abnormalities in fatty acid oxidation, and increased oxidative stress. MtD and oxidative stress may also explain the high male to female ratio found in autism due to increased male vulnerability to these dysfunctions. Biomarkers for mitochondrial dysfunction have been identified, but seem widely under-utilized despite available therapeutic interventions . Nutritional supplementation to decrease oxidative stress along with factors to improve reduced glutathione, as well as hyperbaric oxygen therapy (HBOT) represent supported and rationale approaches . The underlying pathophysiology and autistic symptoms of affected individuals would be expected to either improve or cease worsening once effective treatment for MtD is implemented.
55. We Need More Research! The Bottom Line: ----The Bottom Line----The Bottom Line----The Bottom Line----The Bottom Line---
Editor's Notes
The Toxicology and Environmental Health Information Program (TEHIP) evolved from the Toxicology Information Program (TIP) that was established in 1967 at the National Library of Medicine (NLM) in response to recommendations made in the 1966 report &quot;Handling of Toxicological Information,&quot; prepared by the President's Science Advisory Committee. The TIP objectives were to: (1) create automated toxicology data banks, and (2) provide toxicology information and data services. In the mid-1990's, the mission of TIP was expanded to include environmental health. TEHIP, by creating, organizing, and disseminating toxicology and environmental health information, now serves as a premier information portal for resources in these subject areas. TEHIP maintains a comprehensive toxicology and environmental health web site that includes access to resources produced by TEHIP and by other government agencies and organizations. This web site includes links to databases, bibliographies, tutorials, and other scientific and consumer-oriented resources. TEHIP also is responsible for the Toxicology Data Network (TOXNET®), an integrated system of toxicology and environmental health databases that are available free of charge on the web. The following databases are available for searching via TOXNET:
Cells do not take up intact glutathione – must be broken down to dipeptide or cysteine for uptake – huge concentration gradient (mM0 inside. uM outside)