▁the ▁heat ▁shock ▁prote ins . ▁He ▁worked ▁on ▁the ▁pro g ester one ▁re ceptor ▁and ▁and ro gen ▁re ceptor . ▁While ▁ster oid ▁re cept ors ▁are ▁generally ▁found ▁within ▁the ▁cell , ▁Ba ul ieu ▁identified ▁a ▁memb rane ▁re ceptor ▁for ▁a ▁ster oid ▁h orm one ▁in ▁X en opus ▁la e vis . ▁ ▁Ne uro st ero ids ▁Ba ul ieu ▁discovered ▁that ▁D HE A ▁and ▁preg nen ol one ▁are ▁produced ▁in ▁the ▁brain ▁and ▁introduced ▁the ▁term ▁" ne uro st ero ids " ▁in ▁ 1 9 8 1 . ▁These ▁ster oid s ▁are ▁active ▁in ▁the ▁nerv ous ▁system , ▁help ▁repair ▁my elin , ▁protect ▁the ▁nerv ous ▁system , ▁and ▁enh ance ▁memory . ▁Such ▁agents ▁may ▁prove ▁to ▁be ▁useful ▁in ▁the ▁maintenance ▁of ▁brain ▁function ▁during ▁age , ▁and ▁Ba ul ieu ▁suggests ▁that ▁use ▁of ▁D HE A ▁in ▁the ▁elder ly ▁may ▁am el ior ate ▁certain ▁age - associ ated ▁def ic its ▁including ▁memory ▁loss ▁and ▁de press ive ▁m ood . ▁Ba ul ieu ▁conduct s ▁clin ical ▁research ▁about ▁the ▁potential ▁benefits ▁of ▁D HE A ▁in ▁the ▁elder ly ▁population . ▁ ▁R U 4 8 6 ▁Ba ul ieu ▁is ▁world wide ▁known ▁for ▁his ▁work ▁on ▁R U 4 8 6 ▁( M ife pr ist one ) ▁and ▁has ▁been ▁term ed ▁the ▁" F ather " ▁of ▁the ▁abort ion ▁pill . ▁Ba ul