passages.id: split_4_test_1068_passage
passages.type: progene_text
passages.text: In neurological disorders , such as Alzheimer 's disease , temporal lobe epilepsy and cerebral trauma , the presence of the apolipoprotein E ( ApoE ) allele epsilon4 is associated with an increased vulnerability of the brain to the effects of the disease , whereas the presence of the ApoE genotype epsilon3 / 3 appears to provide moderate neuroprotection .