▁protect ive ▁effect ▁on ▁A β 2 5 – 3 5 ▁induced ▁ne uro to x icity ▁in ▁SD ▁r ats . ▁Another ▁study ▁ass essed ▁the ▁effic acy ▁of ▁Y iz hi ▁caps ule ▁in ▁tre ating ▁sen ile ▁de ment ia . ▁The ▁results ▁showed ▁that ▁Y iz hi ▁caps ule ▁could ▁remark ably ▁increase ▁mini - ment al ▁state ▁exam ination ▁( MM SE ) ▁and ▁Hamilton ▁De pression ▁Sc ale ▁( H DS ) ▁marks ▁of ▁patients ▁with ▁v asc ular ▁de ment ia . ▁Moreover , ▁Y iz hi ▁caps ule ▁improved ▁c ere br al ▁blood ▁flow , ▁brain ▁elect rical ▁activity ▁monitoring ▁( BE AM ) ▁and ▁hem or he ological ▁indexes ▁especially ▁for ▁the ▁ab normal ▁case . ▁Another ▁study ▁mentions ▁that ▁the ▁raised ▁score ▁in ▁the ▁re vised ▁Has eg awa ▁de ment ia ▁scales ▁( H DS ) ▁demonstrated ▁that ▁the ▁effect ▁of ▁Y iz hi ▁caps ules ▁in ▁tre ating ▁loss ▁of ▁intellectual ▁function ▁after ▁c ere bro vas cular ▁dise ases ▁was ▁significantly ▁better ▁than ▁that ▁of ▁the ▁drug ▁Pi rac et am . ▁The ▁study ▁concluded ▁that ▁the ▁data ▁indicate ▁that ▁Y iz hi ▁caps ule ▁is ▁a ▁relatively ▁good ▁prepar ation ▁for ▁prevent ion ▁of ▁v asc ular ▁de ment ia . ▁ ▁A ▁C och rane ▁review ▁in ▁ 2 0 0 7 , ▁however , ▁concluded ▁that ▁none ▁of ▁the ▁studies ▁conducted ▁up ▁to ▁that ▁time ▁used ▁methods ▁that ▁could ▁provide ▁strong ▁evidence ▁that ▁the ▁caps ules