השאלה צריכה להיות PDD ללא חיסון
כי בספקטרום האוטיסטי יש היום פי עשר יותר ילדי PDD- שהידרדרו אחרי גיל שנה- שנה וחצי, לעומת האוטיסטים "הקלאסיים" שרואים את ההבדלים ביניהם לבין ילדים אחרים כבר מתחילת דרכם. עד כדי כך זה נפוץ, שהתופעה של הידרדרות אחרי גיל שנה נכנסה לספרות הרפואית כאקסיומה. זו טעות לחשוב שכל ילד שהופך לאוטיסט הוא בגלל חיסון, אך המחקרים שבדקו מדברים על 90% מילדי ה-PDD, שהם נפגעי חיסונים. לעיתונאי שדיבר איתי, סיפרתי קצת יותר וכמובן שהוא הבין רק חלק מהדברים. והנה קצת תקצירי מאמרים: Digestive Diseases and Sciences, (April, 2000) Vol. 45, No. 4, pp. 723-729. It has been reported that measles virus may be present in the intestine of patients with Crohn's disease. Additionally, a new syndrome has been reported in children with autism who exhibited developmental regression and gastrointestinal symptoms (autistic enterocolitis), in some cases soon after MMR vaccine. It is not known whether the virus, if confirmed to be present in these patients, derives from either wild strains or vaccine strains. In order to characterize the strains that may be present, we have carried out the detection of measles genomic RNA in peripheral mononuclear cells (PBMC) in eight patients with Crohn's disease, three patients with ulcerative colitis, and nine children with autistic enterocolitis. As controls, we examined healthy children and patients with SSPE, SLE, HIV-1 (a total of eight cases). RNA was purified from PBMC by Ficoll-paque, followed by reverse transcription using AMV; cDNAs were subjected to nested PCR for detection of specific regions of the hemagglutinin (H) and fusion (F) gene regions. Positive samples were sequenced directly, in nucleotides 8393-8676 (H region) or 5325-5465 (from noncoding F to coding F region). One of eight patients with Crohn disease, one of three patients with ulcerative colitis, and three of nine children with autism, were positive. Controls were all negative. The sequences obtained from the patients with Crohn's disease shared the characteristics with wild-strain virus. The sequences obtained from the patients with ulcerative colitis and children with autism were consistent with being vaccine strains. The results were concordant with the exposure history of the patients. Persistance of measles virus was confirmed in PBMC in some patients with chronic intestinal inflammation. ועוד אחד:Neuro-immunopathogenesis in autism Author Singh, Vijendra K. Organization Department of Biology & Biotechnology Center, Utah State University, Logan, UT, 84322-5305, USA Publication Source Neuroimmune Biol. (2001), 1(New Foundation of Biology), 447-458 Autism is an idiopathic brain disorder of unknown cause and etiol. It causes severe deficits of higher mental functions, as well as behavioral manifestations. Based on our ongoing research of a reciprocal relationship between nervous system and immune system, we studied autism as a neuro-immune dysfunction syndrome (NIDS) in which autoimmunity to brain was strongly implicated. Because myelination is one of the most important postnatal developmental events, we specifically focused on autoimmunity to brain myelin. We conducted lab. evaluation of brain autoantibodies and virus serol. in approx. 250 autistic children and 150 controls (healthy and non-autistic disease controls). The brain autoantibody study included detection of antibodies to neuron-axon filament proteins (NAFP) and three main myelin components: myelin basic protein (MBP), galactocerebrosides (GC) and 2, 3-cyclic nucleotide 3'-phosphohydrolase (CNP). The virus serol. included measurement of IgG antibodies to measles virus, human herpesvirus-6, cytomegalovirus and rubella virus. We found that autoantibodies to MBP were selectively present in up to 80% of the autistic children, but they were only rarely detected in the controls. Autoantibodies to NAFP and GC were also detected, but they were found non-specifically in control subjects also. Autoantibodies to CNP were absent in both groups of children. Thus MBP is potentially a candidate autoantigen in autism. Regarding virus serol., autistic children had a significantly higher level of measles virus antibodies as compared to controls; however, the antibody level of other three viruses did not significantly differ between the two groups. This suggested a temporal link of measles virus with autoimmunity in autism. The examn. of brain autoantibody and virus serol. data revealed that there was a serol. assocn. between measles virus and MBP autoantibodies, i.e., the higher the measles virus antibody level the greater the chance of MBP autoantibody. Collectively, these observations led us to speculate that an autoimmune response, presumably secondary to an atypical measles virus infection, may cause autism. The idea that autism is an autoimmune disorder is further strengthened by the fact that many autistic children respond well to treatment with immune modulating drugs. Considering MBP autoantibodies as an index of autoimmunity to myelin, an open-label trial of oral Sphingolin (myelin contg. autoantigen) is under assessment-preliminary results are encouraging with significant improvement of behavioral characteristics in the autistic people. In conclusion, autism involves a neuroautoimmune response that occurs at the neuro-immune biol. interface. Clin., therefore, there is enormous potential for restoring brain function in autistic people through immunol.