what is the cause of motor neuron disease
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The causes of motor neurone disease arenot yet known, but ongoing research throughout the world is looking for causes.There are many theories, including exposure to environmental toxins and chemicals, infection by viral agents, immune mediated damage, premature ageing of motor neurones, and loss of growth factors required to maintain motor neurone survival and genetic susceptibility.Most cases of MND occur spontaneously. These are said to be sporadic - meaning occurring in scatteredor isolated instances without clearly identifiable causes. However, familial (hereditary) MND accounts for about ten per cent of cases
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