Guest guest Posted March 31, 2006 Report Share Posted March 31, 2006 CONGRESSIONAL QUARTERLY CQ HEALTHBEAT THURSDAY, MARCH 30, 2006 CONTROVERSY OVER AUTISM-THIMEROSAL LINK FLARING ANEW The self-described " wait a second " crowd is getting bigger. So named by parents and advocates of autistic children who believe the Institute of Medicine (IoM) has erred in ruling out a link between a vaccine ingredient and autism, it has the ear of a growing number of lawmakers who agree more research is needed to resolve whether there is a link. Rep. Carolyn B. Maloney, D-N.Y., is the latest member of Congress to spotlight the issue, saying Thursday she will introduce a bill in late April requiring a study comparing children who have received vaccines with the ingredient, the mercury-containing preservative thimerosal, to those who are unvaccinated.. Maloney said such a study is needed because of stories written by United Press International editor Dan Olmsted reporting no cases of autism in unvaccinated Amish children and in some 30,000 children seen over the years by doctors in a Chicago-area HMO that does not vaccinate children. " To date, no autism study of note " has used a control group to compare children exposed to thimerosal in vaccines to unvaccinated children, she said. However, IoM President Harvey Fineberg has defended the institute's review of data on the link as thorough, saying it's time to focus research on other possible causes of autism. Other lawmakers also recently called for additional research. In a Feb. 22 letter, Sens. ph I. Lieberman, D-Conn., and Debbie Stabenow, D-Mich, reminded the new director of the National Institute of Environmental Health Sciences (NIEHS) at the National Institutes of Health about report language in the fiscal 2006 Health and Human Services spending bill (PL 109-149) urging research on a possible thimerosal-autism link. The report language said that conferees on the measure believe that a database maintained by the Centers for Disease Control and Prevention could be helpful in resolving the issue. But because of skepticism on the part of parents " concerned with vaccine safety " about CDC's credibility on the issue, NIEHS not CDC should lead a study examining the Vaccine Safety Datalink database, the senators said in their letter, also signed by six House members. Meanwhile, the number of co-sponsors on a bill introduced by Rep. Dave Weldon, R-Fla., to bar the marketing of mercury-containing vaccines to children and pregnant women has grown to 72, with the number of Republican and Democratic sponsors virtually the same. According to HHS spokeswoman Pearson, thimerosal has been removed from all children's vaccines other than for flu. Parents can request thimerosal-free versions, Pearson said. Focus on a Best Seller Helping to fuel the growing questions about the IoM's May 18, 2004, study is " Evidence of Harm, " a New York Times best seller whose author Kirby appeared with Maloney at a Washington press briefing Thursday. Kirby noted arguments by parents of autistic children that the IoM report relied on broad epidemiological studies rather than on biological research examining the impact of thimerosal at the cellular level. Four of the five epidemiological studies examined the use of thimerosal in Europe, where lower doses of thimerosal were used in vaccines, Kirby said. And the IoM review did not examine subsets of children who for genetic reasons might be particularly vulnerable to neurological damage caused by mercury, Kirby added. There has been growing biological evidence that " in a small subset of children with a certain genetic predisposition, they are unable to properly process the mercury they were exposed to, " Kirby told TV newsman Tim Russert in an August 7, 2005, appearance on " Meet the Press. " At Thursday's briefing, Kirby highlighted NIEHS-funded study results released March 21 linking thimerosal to cellular changes that could weaken the immune system in mice. It's important to examine tissues and animal models, not just epidemiology, Kirby said. The IoM's View IoM spokeswoman Stencel said Thursday that while there have been additional biological studies, " they provide hints, they provide clues, of what should be explored further, but they do not necessarily equate to what is happening in the human body. " Fineberg told Russert on the " Meet the Press " broadcast that Kirby's emphasis on biological data was unwarranted. " When you're trying to assess a specific association, there are biological studies that are relevant, and there are epidemiological studies that are relevant. All of these studies are not equally valid, " Fineberg said. The IoM committee that prepared the study " went through very carefully and assessed each of those studies representing its strengths and weaknesses. " The epidemiological studies " were carried out in the United States, in Great Britain, in Denmark and Sweden, " Fineberg said. " These studies covered hundreds of thousands of individuals, children, in these populations. They compared systematically in different ways whether you received vaccine with no thimerosal, with some thimerosal, with more thimerosal, and they looked at the relationship of those experiences with the development of autism. Uniformly, the best of those studies all show no association between receiving vaccine of different amounts with thimerosal or without and the development of autism. " Fineberg said " other avenues of research looking at other possible causes today are much more promising ways to spend our precious resources " trying to identify the causes of autism. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted April 1, 2006 Report Share Posted April 1, 2006 The fallacies of epidemiologic studies are reviewed in Analytic Review paper published in Internat. J Clin Invest. vol 13,Dec. 2006 Sincerely, H.H. Fudenberg, M.D., D.D.G., I.O.M. 226 Edgewater Road Inman, SC 29349 864-592-8076 nitrf@hotmailcom From: " Kirby" <dkirby@...>Reply-EOHarm To: <eoharm >Subject: Congressional Quarterly - DC Briefing CoverageDate: Fri, 31 Mar 2006 16:08:32 -0500 CONGRESSIONAL QUARTERLY CQ HEALTHBEAT THURSDAY, MARCH 30, 2006 CONTROVERSY OVER AUTISM-THIMEROSAL LINK FLARING ANEW The self-described "wait a second" crowd is getting bigger. So named by parents and advocates of autistic children who believe the Institute of Medicine (IoM) has erred in ruling out a link between a vaccine ingredient and autism, it has the ear of a growing number of lawmakers who agree more research is needed to resolve whether there is a link. Rep. Carolyn B. Maloney, D-N.Y., is the latest member of Congress to spotlight the issue, saying Thursday she will introduce a bill in late April requiring a study comparing children who have received vaccines with the ingredient, the mercury-containing preservative thimerosal, to those who are unvaccinated.. Maloney said such a study is needed because of stories written by United Press International editor Dan Olmsted reporting no cases of autism in unvaccinated Amish children and in some 30,000 children seen over the years by doctors in a Chicago-area HMO that does not vaccinate children. "To date, no autism study of note" has used a control group to compare children exposed to thimerosal in vaccines to unvaccinated children, she said. However, IoM President Harvey Fineberg has defended the institute's review of data on the link as thorough, saying it's time to focus research on other possible causes of autism. Other lawmakers also recently called for additional research. In a Feb. 22 letter, Sens. ph I. Lieberman, D-Conn., and Debbie Stabenow, D-Mich, reminded the new director of the National Institute of Environmental Health Sciences (NIEHS) at the National Institutes of Health about report language in the fiscal 2006 Health and Human Services spending bill (PL 109-149) urging research on a possible thimerosal-autism link. The report language said that conferees on the measure believe that a database maintained by the Centers for Disease Control and Prevention could be helpful in resolving the issue. But because of skepticism on the part of parents "concerned with vaccine safety" about CDC's credibility on the issue, NIEHS not CDC should lead a study examining the Vaccine Safety Datalink database, the senators said in their letter, also signed by six House members. Meanwhile, the number of co-sponsors on a bill introduced by Rep. Dave Weldon, R-Fla., to bar the marketing of mercury-containing vaccines to children and pregnant women has grown to 72, with the number of Republican and Democratic sponsors virtually the same. According to HHS spokeswoman Pearson, thimerosal has been removed from all children's vaccines other than for flu. Parents can request thimerosal-free versions, Pearson said. Focus on a Best Seller Helping to fuel the growing questions about the IoM's May 18, 2004, study is "Evidence of Harm," a New York Times best seller whose author Kirby appeared with Maloney at a Washington press briefing Thursday. Kirby noted arguments by parents of autistic children that the IoM report relied on broad epidemiological studies rather than on biological research examining the impact of thimerosal at the cellular level. Four of the five epidemiological studies examined the use of thimerosal in Europe, where lower doses of thimerosal were used in vaccines, Kirby said. And the IoM review did not examine subsets of children who for genetic reasons might be particularly vulnerable to neurological damage caused by mercury, Kirby added. There has been growing biological evidence that "in a small subset of children with a certain genetic predisposition, they are unable to properly process the mercury they were exposed to," Kirby told TV newsman Tim Russert in an August 7, 2005, appearance on "Meet the Press." At Thursday's briefing, Kirby highlighted NIEHS-funded study results released March 21 linking thimerosal to cellular changes that could weaken the immune system in mice. It's important to examine tissues and animal models, not just epidemiology, Kirby said. The IoM's View IoM spokeswoman Stencel said Thursday that while there have been additional biological studies, "they provide hints, they provide clues, of what should be explored further, but they do not necessarily equate to what is happening in the human body." Fineberg told Russert on the "Meet the Press" broadcast that Kirby's emphasis on biological data was unwarranted. "When you're trying to assess a specific association, there are biological studies that are relevant, and there are epidemiological studies that are relevant. All of these studies are not equally valid," Fineberg said. The IoM committee that prepared the study "went through very carefully and assessed each of those studies representing its strengths and weaknesses." The epidemiological studies "were carried out in the United States, in Great Britain, in Denmark and Sweden," Fineberg said. "These studies covered hundreds of thousands of individuals, children, in these populations. They compared systematically in different ways whether you received vaccine with no thimerosal, with some thimerosal, with more thimerosal, and they looked at the relationship of those experiences with the development of autism. Uniformly, the best of those studies all show no association between receiving vaccine of different amounts with thimerosal or without and the development of autism." Fineberg said "other avenues of research looking at other possible causes today are much more promising ways to spend our precious resources" trying to identify the causes of autism. Quote Link to comment Share on other sites More sharing options...
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