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Cochrane: No MMR Vaccine Autism Link
Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times A new study sheds light on the mystery of autism and may point the way to a promising treatment. Some autistic children have a weakened ability to protect themselves from toxic metals in their bodies, a biochemist at the University of Arkansas for Medical Sciences has concluded. Such children have a severe deficiency of glutathione, the body's most important tool for detoxifying and excreting heavy metals such as mercury and lead, Dr. Jill James reports in a peer-reviewed study published this month in the American Journal of Clinical Nutrition. James' findings provide new ammunition for those who suspect that mercury-containing vaccines play a role in triggering autism. The study, which involved 20 autistic children, also suggests a possible intervention for the disorder, which has no known cause or cure. In an attempt to correct their metabolic imbalance, James gave eight of the participants supplements of folinic acid, a form of folic acid, and vitamin B-12. Their glutathione measurements then improved. The study did not attempt to quantify changes in autistic behavior. But Dr. Elizabeth Mumper, an associate professor of clinical pediatrics at the University of Virginia Medical School, said she has given similar supplements to many autistic children and noticed a marked improvement in some. ''I don't mean to imply that I can cure autism but for a subset, the results can be dramatic,'' Mumper said. Mumper and James said they hope other researchers will attempt to replicate their findings in larger numbers of children. Most researchers, including James, say there is a strong genetic component to autism. |
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Cochrane: No MMR Vaccine Autism Link
Ilena Rose wrote:
Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times A new study sheds light on the mystery of autism and may point the way to a promising treatment. Some autistic children have a weakened ability to protect themselves from toxic metals in their bodies, a biochemist at the University of Arkansas for Medical Sciences has concluded. Such children have a severe deficiency of glutathione, the body's most important tool for detoxifying and excreting heavy metals such as mercury and lead, Dr. Jill James reports in a peer-reviewed study published this month in the American Journal of Clinical Nutrition. James' findings provide new ammunition for those who suspect that mercury-containing vaccines play a role in triggering autism. The study, which involved 20 autistic children, also suggests a possible intervention for the disorder, which has no known cause or cure. In an attempt to correct their metabolic imbalance, James gave eight of the participants supplements of folinic acid, a form of folic acid, and vitamin B-12. Their glutathione measurements then improved. The study did not attempt to quantify changes in autistic behavior. But Dr. Elizabeth Mumper, an associate professor of clinical pediatrics at the University of Virginia Medical School, said she has given similar supplements to many autistic children and noticed a marked improvement in some. ''I don't mean to imply that I can cure autism but for a subset, the results can be dramatic,'' Mumper said. Mumper and James said they hope other researchers will attempt to replicate their findings in larger numbers of children. Note this: Most researchers, including James, say there is a strong genetic component to autism. James' study has been cited only by the Geiers, paid witnesses in thimerosal trials, and a professor from Northeastern University in a non-peer reviewed paper. The overwhelming weight of evidence says that thimerosal does not cause autism. |
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Cochrane: No MMR Vaccine Autism Link
"Mark Probert" wrote in message ... Ilena Rose wrote: Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times A new study sheds light on the mystery of autism and may point the way to a promising treatment. Some autistic children have a weakened ability to protect themselves from toxic metals in their bodies, a biochemist at the University of Arkansas for Medical Sciences has concluded. Such children have a severe deficiency of glutathione, the body's most important tool for detoxifying and excreting heavy metals such as mercury and lead, Dr. Jill James reports in a peer-reviewed study published this month in the American Journal of Clinical Nutrition. James' findings provide new ammunition for those who suspect that mercury-containing vaccines play a role in triggering autism. The study, which involved 20 autistic children, also suggests a possible intervention for the disorder, which has no known cause or cure. In an attempt to correct their metabolic imbalance, James gave eight of the participants supplements of folinic acid, a form of folic acid, and vitamin B-12. Their glutathione measurements then improved. The study did not attempt to quantify changes in autistic behavior. But Dr. Elizabeth Mumper, an associate professor of clinical pediatrics at the University of Virginia Medical School, said she has given similar supplements to many autistic children and noticed a marked improvement in some. ''I don't mean to imply that I can cure autism but for a subset, the results can be dramatic,'' Mumper said. Mumper and James said they hope other researchers will attempt to replicate their findings in larger numbers of children. Note this: Most researchers, including James, say there is a strong genetic component to autism. James' study has been cited only by the Geiers, paid witnesses in thimerosal trials, and a professor from Northeastern University in a non-peer reviewed paper. The overwhelming weight of evidence says that thimerosal does not cause autism. Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal,New study reopens debate on vaccinations Published: Sep ,8,2004 16:21 PM By ### Special to The Wall Street Journal & Medicalnewstoday By Tara Parker-Pope The Wall Street Journal Just a few months after the nation's top medical adviser rejected a link between vaccines and autism, a mouse study has reignited the debate and raised new fears among parents considering vaccinations and flu shots for their kids. For years, a cadre of parents and physicians have contended that thimerosal, an ethyl-mercury compound that has been one of the most widely used vaccine preservatives, is partly responsible for an apparent rise in autism in recent decades. But broad population studies haven't supported the claim. In May, a major report from the Institute of Medicine's Immunization Safety Review Committee rejected a link between autism and vaccines. But today, a congressional committee will review a June study from Columbia University, which found that a preservative used in vaccines can cause autism-like symptoms in a specific strain of mice. The research raises questions about whether some people might be genetically vulnerable to the effects of thimerosal. The study also raises questions about a new push by the Centers for Disease Control and Prevention to add flu shots to the immunization schedule for school-age kids. The vast majority of flu shots given still contain the preservative. In the study, researchers administered thimerosal to four strains of young mice. Three of the mice strains were unaffected by thimerosal, but the fourth developed problems consistent with autism such as delayed growth, social withdrawal and brain abnormalities. The mice were known to have a genetic susceptibility to mercury. Thimerosal, found in childhood vaccines, can increase the risk of autism-like damage in mice A new study indicates that postnatal exposure to thimerosal, a mercury preservative commonly used in a number of childhood vaccines, can lead to the development of autism-like damage in autoimmune disease susceptible mice. This animal model, the first to show that the administration of low-dose ethylmercury can lead to behavioral and neurological changes in the developing brain, reinforces previous studies showing that a genetic predisposition affects risk in combination with certain environmental triggers. The study was conducted by researchers at the Jerome L. and Dawn Greene Infectious Disease Laboratory at the Mailman School of Public Health, Columbia University. Over the past 20 years, there has been a striking increase--at least ten-fold since 1985--in the number of children diagnosed with autism spectrum disorders. Genetic factors alone cannot account for this rise in prevalence. Researchers at the Mailman School, led by Dr. Mady Hornig, created an animal model to explore the relationship between thimerosal (ethylmercury) and autism, hypothesizing that the combination of genetic susceptibility and environmental exposure to mercury in childhood vaccines may cause neurotoxicity. Cumulative mercury burden through other sources, including in utero exposures to mercury in fish or vaccines, may also lead to damage in susceptible hosts. Timing and quantity of thimerosal dosing for the mouse model were developed using the U.S. immunization schedule for children, with doses calculated for mice based on 10th percentile weight of U.S. boys at age two, four, six, and twelve months. The researchers found the subset of autoimmune disease susceptible mice with thimerosal exposure to express many important aspects of the behavioral and neuropathologic features of autism spectrum disorders, including: Abnormal response to novel environments; Behavioral impoverishment (limited range of behaviors and decreased exploration of environment); Significant abnormalities in brain architecture, affecting areas subserving emotion and cognition; Increased brain size. These findings have relevance for identification of autism cases relating to environmental factors; design of treatment strategies; and development of rational immunization programs. The use of thimerosal in vaccines has been reduced over the past few years, although it is still present in some influenza vaccines. Identifying the connection between genetic susceptibility and an environmental trigger for autism--in this case thimerosal exposure--is important because it may promote discovery of effective interventions for and limit exposure in a specific population, stated the lead author Dr. Mady Hornig. Because the developing brain can be exposed to toxins that are long gone by the time symptoms appear, clues gathered in these animal models can then be evaluated through prospective human birth cohorts--providing a powerful to tool to dissect the interaction between genes and the environment over time. Citation source: Molecular Psychiatry 2004 Volume 9, advance on line publication doi:10.1038/sj.mp.4001529 For further information on this work, please contact Mady Hornig, MD, Columbia University, Mailman School of Public Health, Greene Infectious Disease Laboratory, 722 W 168th St, New York, New York 10032, United States of America, phone: 212-342-9036; FAX: 949-824-1229; e-mail: ARTICLE: "Neurotoxic effects of postnatal thimerosal are mouse strain-dependent" M Hornig, D Chian, W. I. Lipkin Greene Infectious Disease Laboratory, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, New York 10032 |
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Cochrane: No MMR Vaccine Autism Link
The new study is over a year old. We have noted it.
Jeff |
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Cochrane: No MMR Vaccine Autism Link
"Jeff" wrote in message link.net... The new study is over a year old. We have noted it. Jeff Over a year old and still note worthy. It needs to be repeated when people lke Mark Probert make repeated stupid statements. That's what you snipped, Jeff. The overwhelming weight of evidence says that thimerosal does not cause autism |
#7
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Cochrane: No MMR Vaccine Autism Link
"LadyLollipop" wrote in message newsqB5f.448673$_o.331937@attbi_s71... "Mark Probert" wrote in message ... Ilena Rose wrote: Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times [article deleted] Note this: Most researchers, including James, say there is a strong genetic component to autism. James' study has been cited only by the Geiers, paid witnesses in thimerosal trials, and a professor from Northeastern University in a non-peer reviewed paper. The overwhelming weight of evidence says that thimerosal does not cause autism. Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal,New study reopens debate on vaccinations Published: Sep ,8,2004 16:21 PM By ### Special to The Wall Street Journal & Medicalnewstoday By Tara Parker-Pope The Wall Street Journal [article deleted] Note this: JAMA. 2003 Oct 1;290(13):1763-6. Comment in: J Fam Pract. 2004 Feb;53(2):94-6. JAMA. 2004 Jan 14;291(2):180; author reply 180-1. JAMA. 2004 Jan 14;291(2):180; author reply 180-1. "Association between thimerosal-containing vaccine and autism." Hviid A, Stellfeld M, Wohlfahrt J, Melbye M. Danish Epidemiology Science Centre, Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark. CONTEXT: Mercuric compounds are nephrotoxic and neurotoxic at high doses. Thimerosal, a preservative used widely in vaccine formulations, contains ethylmercury. Thus it has been suggested that childhood vaccination with thimerosal-containing vaccine could be causally related to neurodevelopmental disorders such as autism. OBJECTIVE: To determine whether vaccination with a thimerosal-containing vaccine is associated with development of autism. DESIGN, SETTING, AND PARTICIPANTS: Population-based cohort study of all children born in Denmark from January 1, 1990, until December 31, 1996 (N = 467 450) comparing children vaccinated with a thimerosal-containing vaccine with children vaccinated with a thimerosal-free formulation of the same vaccine. MAIN OUTCOME MEASURES: Rate ratio (RR) for autism and other autistic-spectrum disorders, including trend with dose of ethylmercury. RESULTS: During 2 986 654 person-years, we identified 440 autism cases and 787 cases of other autistic-spectrum disorders. The risk of autism and other autistic-spectrum disorders did not differ significantly between children vaccinated with thimerosal-containing vaccine and children vaccinated with thimerosal-free vaccine (RR, 0.85 [95% confidence interval [CI], 0.60-1.20] for autism; RR, 1.12 [95% CI, 0.88-1.43] for other autistic-spectrum disorders). Furthermore, we found no evidence of a dose-response association (increase in RR per 25 microg of ethylmercury, 0.98 [95% CI, 0.90-1.06] for autism and 1.03 [95% CI, 0.98-1.09] for other autistic-spectrum disorders). CONCLUSION: The results do not support a causal relationship between childhood vaccination with thimerosal-containing vaccines and development of autistic-spectrum disorders. |
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Cochrane: No MMR Vaccine Autism Link
LadyLollipop wrote: "Jeff" wrote in message link.net... The new study is over a year old. We have noted it. Jeff Over a year old and still note worthy. Over a year old amd still irrelevant, since no epidemiological study has shown a link between vaccinations and autism, despite the many carried out. Evidently "behavioural impoverishment" in mice does not correspond to autism in humans. It is telling that there is a plethora of studies demonstrating that the link between thimerosal and autism doesn't exist, while La Lollipop has only this one that she's trotted out countless times, and is a study of "autoimmune disease susceptible" mice, that comes close to suggesting that it does. Cathy It needs to be repeated when people lke Mark Probert make repeated stupid statements. That's what you snipped, Jeff. The overwhelming weight of evidence says that thimerosal does not cause autism |
#9
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Cochrane: No MMR Vaccine Autism Link
"Darwin" wrote in message ... "LadyLollipop" wrote in message newsqB5f.448673$_o.331937@attbi_s71... "Mark Probert" wrote in message ... Ilena Rose wrote: Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times [article deleted] Note this: Most researchers, including James, say there is a strong genetic component to autism. James' study has been cited only by the Geiers, paid witnesses in thimerosal trials, and a professor from Northeastern University in a non-peer reviewed paper. The overwhelming weight of evidence says that thimerosal does not cause autism. Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal,New study reopens debate on vaccinations Published: Sep ,8,2004 16:21 PM By ### Special to The Wall Street Journal & Medicalnewstoday By Tara Parker-Pope The Wall Street Journal [article deleted] Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal, ******New study reopens debate on vaccinations******** Published: Sep ,8,2004 16:21 PM By ### Special to The Wall Street Journal & Medicalnewstoday By Tara Parker-Pope The Wall Street Journal Note this: [article deleted] Restored: Just a few months after the nation's top medical adviser rejected a link between vaccines and autism, a mouse study has reignited the debate and raised new fears among parents considering vaccinations and flu shots for their kids. For years, a cadre of parents and physicians have contended that thimerosal, an ethyl-mercury compound that has been one of the most widely used vaccine preservatives, is partly responsible for an apparent rise in autism in recent decades. But broad population studies haven't supported the claim. In May, a major report from the Institute of Medicine's Immunization Safety Review Committee rejected a link between autism and vaccines. But today, a congressional committee will review a June study from Columbia University, which found that a preservative used in vaccines can cause autism-like symptoms in a specific strain of mice. The research raises questions about whether some people might be genetically vulnerable to the effects of thimerosal. The study also raises questions about a new push by the Centers for Disease Control and Prevention to add flu shots to the immunization schedule for school-age kids. The vast majority of flu shots given still contain the preservative. In the study, researchers administered thimerosal to four strains of young mice. Three of the mice strains were unaffected by thimerosal, but the fourth developed problems consistent with autism such as delayed growth, social withdrawal and brain abnormalities. The mice were known to have a genetic susceptibility to mercury. Thimerosal, found in childhood vaccines, can increase the risk of autism-like damage in mice A new study indicates that postnatal exposure to thimerosal, a mercury preservative commonly used in a number of childhood vaccines, can lead to the development of autism-like damage in autoimmune disease susceptible mice. This animal model, the first to show that the administration of low-dose ethylmercury can lead to behavioral and neurological changes in the developing brain, reinforces previous studies showing that a genetic predisposition affects risk in combination with certain environmental triggers. The study was conducted by researchers at the Jerome L. and Dawn Greene Infectious Disease Laboratory at the Mailman School of Public Health, Columbia University. Over the past 20 years, there has been a striking increase--at least ten-fold since 1985--in the number of children diagnosed with autism spectrum disorders. Genetic factors alone cannot account for this rise in prevalence. Researchers at the Mailman School, led by Dr. Mady Hornig, created an animal model to explore the relationship between thimerosal (ethylmercury) and autism, hypothesizing that the combination of genetic susceptibility and environmental exposure to mercury in childhood vaccines may cause neurotoxicity. Cumulative mercury burden through other sources, including in utero exposures to mercury in fish or vaccines, may also lead to damage in susceptible hosts. Timing and quantity of thimerosal dosing for the mouse model were developed using the U.S. immunization schedule for children, with doses calculated for mice based on 10th percentile weight of U.S. boys at age two, four, six, and twelve months. The researchers found the subset of autoimmune disease susceptible mice with thimerosal exposure to express many important aspects of the behavioral and neuropathologic features of autism spectrum disorders, including: Abnormal response to novel environments; Behavioral impoverishment (limited range of behaviors and decreased exploration of environment); Significant abnormalities in brain architecture, affecting areas subserving emotion and cognition; Increased brain size. These findings have relevance for identification of autism cases relating to environmental factors; design of treatment strategies; and development of rational immunization programs. The use of thimerosal in vaccines has been reduced over the past few years, although it is still present in some influenza vaccines. Identifying the connection between genetic susceptibility and an environmental trigger for autism--in this case thimerosal exposure--is important because it may promote discovery of effective interventions for and limit exposure in a specific population, stated the lead author Dr. Mady Hornig. Because the developing brain can be exposed to toxins that are long gone by the time symptoms appear, clues gathered in these animal models can then be evaluated through prospective human birth cohorts--providing a powerful to tool to dissect the interaction between genes and the environment over time. Citation source: Molecular Psychiatry 2004 Volume 9, advance on line publication doi:10.1038/sj.mp.4001529 For further information on this work, please contact Mady Hornig, MD, Columbia University, Mailman School of Public Health, Greene Infectious Disease Laboratory, 722 W 168th St, New York, New York 10032, United States of America, phone: 212-342-9036; FAX: 949-824-1229; e-mail: ARTICLE: "Neurotoxic effects of postnatal thimerosal are mouse strain-dependent" M Hornig, D Chian, W. I. Lipkin Greene Infectious Disease Laboratory, Mailman School of Public Health, Columbia University, 722 W 168th St, New York, New York 10032 |
#10
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Cochrane: No MMR Vaccine Autism Link
LadyLollipop wrote: "Darwin" wrote in message ... "LadyLollipop" wrote in message newsqB5f.448673$_o.331937@attbi_s71... "Mark Probert" wrote in message ... Ilena Rose wrote: Study links autism to toxic metals By SANDY KLEFFMAN Contra Costa Times [article deleted] Note this: Most researchers, including James, say there is a strong genetic component to autism. James' study has been cited only by the Geiers, paid witnesses in thimerosal trials, and a professor from Northeastern University in a non-peer reviewed paper. The overwhelming weight of evidence says that thimerosal does not cause autism. Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal,New study reopens debate on vaccinations Published: Sep ,8,2004 16:21 PM By ### Special to The Wall Street Journal & Medicalnewstoday By Tara Parker-Pope The Wall Street Journal [article deleted] Note this: http://www.flu.org.cn/news/2004986362.htm Thimerosal, ******New study reopens debate on vaccinations******** Er, that would be a year-old study. snip more pointless reposting No epidemiological study has shown a link between vaccinations and autism, despite the many carried out. Evidently "behavioural impoverishment" in mice does not correspond to autism in humans. It is telling that there is a plethora of studies demonstrating that the link between thimerosal and autism doesn't exist, while La Lollipop has only this one that she's trotted out countless times, and is a study of "autoimmune disease susceptible" mice, that comes close to suggesting that it does. Cathy |
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