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Other Sciences
Biology and Medical
Down syndrome -- level of mental disability
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[QUOTE="Hernik, post: 5744136, member: 85802"] I am not a specialist. But my son has Down syndrome. I understand it this way: First of all: Normal children develop very different levels of mental and physical ability. So in that respect, it is maybe not surprising that "children with down syndrome develop different levels of mental and physical disability." But also I imagine the microbiology of our cells differ a little from person to person. So the extra genes do not influence every person's cells in the exactly the same way. The development of the brain might be disturbed more or less from person to person. The same goes for development of limbs, joints, heart, guts and so on. Also the functioning of each type of cell in the body might be disturbed more or less severely. I imagine this is the reason trisomy 21 persons can be more or less effected by their illness. And I also imagine it to be the reason levels of physical and mental disability can vary in persons with Down syndrome. For example: We know this other boy with Down syndrome who is only mildly affected mentally. He talks and understands quite a lot. But he is troubled by very loose joints. He can hardly walk. My boy on the other hand, is quite good physically - he can run and jump - his joints are only mildly affected by his trisomy. But his mental disability is severe. He has enormous trouble communicating verbally. So the extra chromosome 21 causes the same type of problems for the two boys, but at different levels in different cells/functions. Hope it helps. [/QUOTE]
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Down syndrome -- level of mental disability
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