A substance, such as pollen, that causes an allergy. - Though allergens are not harmful themselves, when they are combined with certain antibodies, a reaction (i.e. the allergy) liberates substances that damage body cells and tissues.. A substance, such as pollen, that causes an allergy. [German. : , allergy; see allergy +. , -gen (from French. ; see-gen).]. alâ²lerÂ·genâ²ic (-jÄnâ²Ä­k) adj.
A Honor Society of Nursing (STTI) answered. Prognosis varies depending on the type of motor neuron disease (MND) and the age of onset. Some MNDs, such as Post-polio syndrome (PLS), are not fatal and progress slowly.People with Spinal muscular atrophy (SMA) may appear to be stable for long periods, but improvement should not be expected.ome MNDs, such as Post-polio syndrome (PLS), are not fatal and progress slowly. People with Spinal muscular atrophy (SMA) may appear to be stable for long periods, but improvement should not be expected.
Neuropathy Prognosis. Prognosis for neuropathy depends on the underlying cause. The earlier the diagnosis is made and treatment is started, the greater the chance that nerve damage can be slowed or reversed and the better the prognosis.