▁and ▁led ▁to ▁decre ased ▁amounts ▁of ▁ β - amy lo id ▁in ▁the ▁brain ▁and ▁increased ▁cogn itive ▁function ▁in ▁the ▁m ice . ▁ ▁Inter active ▁path way ▁map ▁ ▁See ▁also ▁▁ ▁ATP - binding ▁c ass ette ▁trans porter ▁P - gly cop rote in ▁( Mult id rug ▁resistance ▁protein - ▁M DR 1 ). ▁Not ▁to ▁be ▁confused ▁with ▁Mult id rug ▁resistance - associ ated ▁protein ▁( MR P 1 ) ▁ ▁References ▁ ▁Further ▁reading ▁ ▁External ▁links ▁▁▁▁▁▁ ▁Category : ABC ▁trans por ters <0x0A> </s> ▁On ch id ium ▁mult in ot atum ▁is ▁a ▁species ▁of ▁air - bre ath ing ▁sea ▁sl ug , ▁a ▁shell - less ▁marine ▁pul mon ate ▁g ast rop od ▁m oll usk ▁in ▁the ▁family ▁On ch idi idae . ▁ ▁Description ▁ ▁Distribution ▁ ▁References ▁ ▁Category : On ch idi idae ▁Category : G ast rop ods ▁described ▁in ▁ 1 8 9 3 <0x0A> </s> ▁Rus ki ▁Kr st ur ▁( Ser bian ▁C yr ill ic : ▁Ру ски ▁К р сту р , ▁Rus yn : ▁Ру ски ▁К ере сту р ) ▁is ▁a ▁village ▁in ▁V oj vod ina , ▁Ser bia . ▁It ▁is ▁located ▁in ▁the ▁municipality ▁of ▁K ula , ▁West ▁Ba čka ▁District . ▁The ▁village ▁has ▁a ▁Rus yn ▁eth nic ▁majority . ▁Its ▁population ▁number ed ▁ 5 , 2 1 3 ▁in ▁the ▁ 2 0 0 2 ▁census