the results are further evidence that porphyrin-induced photodamage is largely determined by the solubility properties of the porphyrins and the target structures [ sandberg & romslo ( 1980 ) biochim . biophys . acta 593 , 187-195 ] , and also that protoporphyrin-induced photodamage is essentially similar whether protoporphyrin is generated endogenously or added exogenously .
C0032712
porphyrins
C0033733
protoporphyrin