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General Parenting
how to help difficult child with weight problem?
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<blockquote data-quote="Giulia" data-source="post: 532103" data-attributes="member: 14306"><p>MWM, I agree that there is not one answer. </p><p></p><p>You talked about the PWS test for your son. </p><p>Could you tell me which analysis technic they used : FISH or methylation ? The FISH test detects only the deletion (when it lacks of material) type, but if the person has PWS due to maternal uniparental disomy (two chromosoms 15 from the mother instead of one from the mother and one from the father) or imprinting defect (when the material didn't pass well from parents to child. Like unbalanced translocation), it won't show on the FISH test. It will show only on methylation.</p><p>The deletion type is the most frequent, but it doesn't account for all PWS cases.</p><p></p><p>Hope it helps.</p></blockquote><p></p>
[QUOTE="Giulia, post: 532103, member: 14306"] MWM, I agree that there is not one answer. You talked about the PWS test for your son. Could you tell me which analysis technic they used : FISH or methylation ? The FISH test detects only the deletion (when it lacks of material) type, but if the person has PWS due to maternal uniparental disomy (two chromosoms 15 from the mother instead of one from the mother and one from the father) or imprinting defect (when the material didn't pass well from parents to child. Like unbalanced translocation), it won't show on the FISH test. It will show only on methylation. The deletion type is the most frequent, but it doesn't account for all PWS cases. Hope it helps. [/QUOTE]
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