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	<title>Comments on: The rush to report on MMR/regressive autism study</title>
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	<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/</link>
	<description>Family, Health, Home and Lifestyles</description>
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		<title>By: Autism Vox &#187; Dr. Stephen Walker on MMR: No link 2</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527456</link>
		<dc:creator>Autism Vox &#187; Dr. Stephen Walker on MMR: No link 2</dc:creator>
		<pubDate>Wed, 28 Jun 2006 14:45:17 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527456</guid>
		<description>[...] Dr. Walker&#8217;s research on the MMR vaccine and regressive autism was presented as a poster presentation at last week&#8217;s International Meeting for Autism Research (IMFAR). Despite Dr. Walker&#8217;s own disavowal of a link between the MMR vaccine and &#8220;regressive autism,&#8221; this is the first paragraph of an article entitled &#8220;New fears over MMR jab take-up&#8221; on today&#8217;s Wales.co.uk: [...]</description>
		<content:encoded><![CDATA[<p>[...] Dr. Walker&#8217;s research on the MMR vaccine and regressive autism was presented as a poster presentation at last week&#8217;s International Meeting for Autism Research (IMFAR). Despite Dr. Walker&#8217;s own disavowal of a link between the MMR vaccine and &#8220;regressive autism,&#8221; this is the first paragraph of an article entitled &#8220;New fears over MMR jab take-up&#8221; on today&#8217;s Wales.co.uk: [...]</p>
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		<title>By: Kristina Chew, PhD</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527087</link>
		<dc:creator>Kristina Chew, PhD</dc:creator>
		<pubDate>Sun, 28 May 2006 21:28:42 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527087</guid>
		<description>The IMFAR program makes it clear that ARI, NAA, and &quot;donations&quot; funded Walker&#039;s research. Very curious to hear what Michelle Dawson has to say---</description>
		<content:encoded><![CDATA[<p>The IMFAR program makes it clear that ARI, NAA, and &#8220;donations&#8221; funded Walker&#8217;s research. Very curious to hear what Michelle Dawson has to say&#8212;</p>
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		<title>By: Camille</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527085</link>
		<dc:creator>Camille</dc:creator>
		<pubDate>Sun, 28 May 2006 20:27:04 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527085</guid>
		<description>Kristina, I think that NAA got some reporters to push it ahead of the story... Walker&#039;s thing is just a poster, by the way, not a speaking presentation.  They stand next to their poster in a hallway, usually, and answer questions.    Michelle Dawson will be at IMFAR.  yaaay!</description>
		<content:encoded><![CDATA[<p>Kristina, I think that NAA got some reporters to push it ahead of the story&#8230; Walker&#8217;s thing is just a poster, by the way, not a speaking presentation.  They stand next to their poster in a hallway, usually, and answer questions.    Michelle Dawson will be at IMFAR.  yaaay!</p>
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		<title>By: Kristina Chew, PhD</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527082</link>
		<dc:creator>Kristina Chew, PhD</dc:creator>
		<pubDate>Sun, 28 May 2006 16:46:06 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527082</guid>
		<description>D of C, it all makes one wonder if some reporter may have been scouring the IMFAR program and pulled out Walker&#039;s study since it&#039;s on a &quot;newsworthy&quot; topic.</description>
		<content:encoded><![CDATA[<p>D of C, it all makes one wonder if some reporter may have been scouring the IMFAR program and pulled out Walker&#8217;s study since it&#8217;s on a &#8220;newsworthy&#8221; topic.</p>
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		<title>By: Autism Vox &#187; Dr. Insel on &#8220;Autism: What do we know? What do we need?&#8221;</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527081</link>
		<dc:creator>Autism Vox &#187; Dr. Insel on &#8220;Autism: What do we know? What do we need?&#8221;</dc:creator>
		<pubDate>Sun, 28 May 2006 16:07:59 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527081</guid>
		<description>[...] You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.   Related Posts: No relatedposts [...]</description>
		<content:encoded><![CDATA[<p>[...] You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.   Related Posts: No relatedposts [...]</p>
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		<title>By: Dad Of Cameron</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527080</link>
		<dc:creator>Dad Of Cameron</dc:creator>
		<pubDate>Sun, 28 May 2006 16:02:38 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527080</guid>
		<description>&quot;It’s not clear if they have actually been published.&quot;

It&#039;s not clear that it would actually be published, that may not be what Krigsman does. Perhaps he doesn&#039;t believe in real peer review. Do a PubMed search for him - 1 asthma paper. Do a PubMed search for Krigsman Autism - 0 results.</description>
		<content:encoded><![CDATA[<p>&#8220;It’s not clear if they have actually been published.&#8221;</p>
<p>It&#8217;s not clear that it would actually be published, that may not be what Krigsman does. Perhaps he doesn&#8217;t believe in real peer review. Do a PubMed search for him &#8211; 1 asthma paper. Do a PubMed search for Krigsman Autism &#8211; 0 results.</p>
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		<title>By: Michelle Dawson</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527079</link>
		<dc:creator>Michelle Dawson</dc:creator>
		<pubDate>Sun, 28 May 2006 14:57:20 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527079</guid>
		<description>As I just wrote here http://www.quicktopic.com/27/H/vJvhV4fDnBgw7/m4365 , there is a study re the MMR and autism at IMFAR 2006 that does have a control group.

PS3.26
NO EVIDENCE OF PERSISTING MEASLES VIRUS IN PERIPHERAL BLOOD MONONUCLEAR CELLS FROM CHILDREN WITH AUTISTIC SPECTRUM DISORDER 
Yasmin L D&#039;Souza, Eric Fombonne, Brian J Ward, Division of Infectious Diseases, McGill University Health Center (MUHC)

BACKGROUND: Claims of an association between measles, mumps and rubella vaccination (MMR) and the development of autism spectrum disorder (ASD) are based primarily on the identification of measles virus (MV) nucleic acids in tissues and body fluids by PCR. These data come almost exclusively from a single group of investigators, Uhlmann and colleagues (Mol Pathol 2002; 55: 84-90).
OBJECTIVES: We sought to replicate the PCR assays used by Uhlmann et al. to determine whether or not MV nucleic acids persist in children with ASD compared with non-ASD children.
METHODS: We recruited 54 children with ASD and 34 developmentally normal controls referred to the Montreal Children&#039;s Hospital. Peripheral blood mononuclear cells (PBMC) were isolated and up to three real-time reversetranscriptase PCR (RT-PCR) assays were performed. These assays targeted the N, F and H genes of MV using the primer pairs published by Uhlmann et al., with detection by SYBR Green I. Amplicons from positive reactions were sequenced.
RESULTS: The Uhlmann primer-based assays gave rise to a large number of positive reactions in both groups. For example, a positive signal was observed in 93% of ASD samples and 100% of the control samples using the F gene assay. Almost all of the positive reactions in the assays were eliminated by melting curve analysis and amplicon band-size on agarose gels. The amplicons for the remaining positive reactions were cloned and sequenced. No sample from either ASD or control groups was found to contain nucleic acids from any MV gene.
CONCLUSION: There is no evidence of MV persistence in the PBMC of children with ASD.</description>
		<content:encoded><![CDATA[<p>As I just wrote here <a href="http://www.quicktopic.com/27/H/vJvhV4fDnBgw7/m4365" rel="nofollow">http://www.quicktopic.com/27/H/vJvhV4fDnBgw7/m4365</a> , there is a study re the MMR and autism at IMFAR 2006 that does have a control group.</p>
<p>PS3.26<br />
NO EVIDENCE OF PERSISTING MEASLES VIRUS IN PERIPHERAL BLOOD MONONUCLEAR CELLS FROM CHILDREN WITH AUTISTIC SPECTRUM DISORDER<br />
Yasmin L D&#8217;Souza, Eric Fombonne, Brian J Ward, Division of Infectious Diseases, McGill University Health Center (MUHC)</p>
<p>BACKGROUND: Claims of an association between measles, mumps and rubella vaccination (MMR) and the development of autism spectrum disorder (ASD) are based primarily on the identification of measles virus (MV) nucleic acids in tissues and body fluids by PCR. These data come almost exclusively from a single group of investigators, Uhlmann and colleagues (Mol Pathol 2002; 55: 84-90).<br />
OBJECTIVES: We sought to replicate the PCR assays used by Uhlmann et al. to determine whether or not MV nucleic acids persist in children with ASD compared with non-ASD children.<br />
METHODS: We recruited 54 children with ASD and 34 developmentally normal controls referred to the Montreal Children&#8217;s Hospital. Peripheral blood mononuclear cells (PBMC) were isolated and up to three real-time reversetranscriptase PCR (RT-PCR) assays were performed. These assays targeted the N, F and H genes of MV using the primer pairs published by Uhlmann et al., with detection by SYBR Green I. Amplicons from positive reactions were sequenced.<br />
RESULTS: The Uhlmann primer-based assays gave rise to a large number of positive reactions in both groups. For example, a positive signal was observed in 93% of ASD samples and 100% of the control samples using the F gene assay. Almost all of the positive reactions in the assays were eliminated by melting curve analysis and amplicon band-size on agarose gels. The amplicons for the remaining positive reactions were cloned and sequenced. No sample from either ASD or control groups was found to contain nucleic acids from any MV gene.<br />
CONCLUSION: There is no evidence of MV persistence in the PBMC of children with ASD.</p>
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		<title>By: Kristina Chew, PhD</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527078</link>
		<dc:creator>Kristina Chew, PhD</dc:creator>
		<pubDate>Sun, 28 May 2006 14:33:44 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527078</guid>
		<description>There doesn&#039;t appear to be. I have also been wondering how the children in the study were found and selected.</description>
		<content:encoded><![CDATA[<p>There doesn&#8217;t appear to be. I have also been wondering how the children in the study were found and selected.</p>
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		<title>By: Lisa Randall</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527077</link>
		<dc:creator>Lisa Randall</dc:creator>
		<pubDate>Sun, 28 May 2006 13:51:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527077</guid>
		<description>For heaven&#039;s sake, were there no controls in this study?  Is there any reason at all to suppose that even if their finding in the autistic children is correct, it is any different from what would be found in non-autistic children?</description>
		<content:encoded><![CDATA[<p>For heaven&#8217;s sake, were there no controls in this study?  Is there any reason at all to suppose that even if their finding in the autistic children is correct, it is any different from what would be found in non-autistic children?</p>
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		<title>By: Kristina Chew, PhD</title>
		<link>http://www.blisstree.com/articles/the-rush-to-report-on-mmrregressive-autism-study/comment-page-1/#comment-527076</link>
		<dc:creator>Kristina Chew, PhD</dc:creator>
		<pubDate>Sun, 28 May 2006 13:29:13 +0000</pubDate>
		<guid isPermaLink="false">http://www.autismvox.com/2nd-study-confirms-wakefields-1998-findings-on-mmrregressive-autism-link/#comment-527076</guid>
		<description>Here is the abstract for Dr. Walker&#039;s paper to be presented at the Montral conference (International Meeting for Autism Research).

PS3.30 
PERSISTENT ILEAL MEASLES VIRUS IN A 
LARGE COHORT OF REGRESSIVE AUTISTIC 
CHILDREN WITH ILEOCOLITIS AND 
LYMPHONODULAR HYPERPLASIA: 
REVISITATION OF AN EARLIER STUDY Steve 
Walker, Karin Hepner, Jeffrey Segal, Arthur Krigsman, 
Wake Forest University School of Medicine  
Background: Autistic enterocolitis, consisting of a 
nonspecific ileocolitis coupled with ileocolonic 
lymphonodular hyperplasia (LNH), was first introduced 
as a new, potentially virus-induced disease entity eight 
years ago in a group of ASD children with developmental 
regression. 
Objectives: The primary objective of this study was to 
 examine ileal biopsy tissue in a large cohort of pediatric 
patients who carry a diagnosis of regressive autism and 
whose chronic gastrointestinal symptoms warranted 
diagnostic endoscopic evaluation, for evidence of measles 
virus RNA. 
Methods: Patients who had been diagnosed with autism 
and who were referred to a pediatric gastroenterologist for 
evaluation of chronic GI symptoms were eligible to 
participate in this IRB approved study. For each patient, 
medical histories, vaccination records, histopathology 
reports, and ileocolonoscopic biopsy tissue were available 
for evaluation. Terminal ileum (TI) biopsy tissue was 
assayed by RT-PCR for the presence of measles virus 
RNA and PCR-positive samples were sequenced. 
Results: Medical and clinical data have been collected for 
&gt;275 patients who fit the study inclusion criteria. PCR 
analysis on TI biopsy tissue from an initial 82 patients 
showed that 70 (85%) were positive for the F gene 
amplicon. Fourteen have been verified by DNA sequence 
and an additional 56 amplicons are being sequenced now. 
Work is ongoing to assay the remaining specimens (~200) 
and to identify and assay relevant control tissue samples.  
Conclusions: Preliminary results from this large cohort of 
pediatric autistic patients with chronic GI symptoms 
confirm earlier findings of measles virus RNA in the 
terminal ileum and support an association between 
measles virus and ileocolitis /LNH.  
Sponsors: ARI; NAA; individual donations</description>
		<content:encoded><![CDATA[<p>Here is the abstract for Dr. Walker&#8217;s paper to be presented at the Montral conference (International Meeting for Autism Research).</p>
<p>PS3.30<br />
PERSISTENT ILEAL MEASLES VIRUS IN A<br />
LARGE COHORT OF REGRESSIVE AUTISTIC<br />
CHILDREN WITH ILEOCOLITIS AND<br />
LYMPHONODULAR HYPERPLASIA:<br />
REVISITATION OF AN EARLIER STUDY Steve<br />
Walker, Karin Hepner, Jeffrey Segal, Arthur Krigsman,<br />
Wake Forest University School of Medicine<br />
Background: Autistic enterocolitis, consisting of a<br />
nonspecific ileocolitis coupled with ileocolonic<br />
lymphonodular hyperplasia (LNH), was first introduced<br />
as a new, potentially virus-induced disease entity eight<br />
years ago in a group of ASD children with developmental<br />
regression.<br />
Objectives: The primary objective of this study was to<br />
 examine ileal biopsy tissue in a large cohort of pediatric<br />
patients who carry a diagnosis of regressive autism and<br />
whose chronic gastrointestinal symptoms warranted<br />
diagnostic endoscopic evaluation, for evidence of measles<br />
virus RNA.<br />
Methods: Patients who had been diagnosed with autism<br />
and who were referred to a pediatric gastroenterologist for<br />
evaluation of chronic GI symptoms were eligible to<br />
participate in this IRB approved study. For each patient,<br />
medical histories, vaccination records, histopathology<br />
reports, and ileocolonoscopic biopsy tissue were available<br />
for evaluation. Terminal ileum (TI) biopsy tissue was<br />
assayed by RT-PCR for the presence of measles virus<br />
RNA and PCR-positive samples were sequenced.<br />
Results: Medical and clinical data have been collected for<br />
>275 patients who fit the study inclusion criteria. PCR<br />
analysis on TI biopsy tissue from an initial 82 patients<br />
showed that 70 (85%) were positive for the F gene<br />
amplicon. Fourteen have been verified by DNA sequence<br />
and an additional 56 amplicons are being sequenced now.<br />
Work is ongoing to assay the remaining specimens (~200)<br />
and to identify and assay relevant control tissue samples.<br />
Conclusions: Preliminary results from this large cohort of<br />
pediatric autistic patients with chronic GI symptoms<br />
confirm earlier findings of measles virus RNA in the<br />
terminal ileum and support an association between<br />
measles virus and ileocolitis /LNH.<br />
Sponsors: ARI; NAA; individual donations</p>
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