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  • Title: Hematoporphyrin diethers--V. Plasma protein binding and photosensitizing efficiency.
    Author: Kongshaug M, Rimington C, Evensen JF, Peng Q, Moan J.
    Journal: Int J Biochem; 1990; 22(10):1127-31. PubMed ID: 2149708.
    Abstract:
    1. Binding of added hematoporphyrin (HP) ethers to human plasma proteins and lipoproteins has been investigated by ultracentrifugation. 2. The binding to low density lipoproteins (LDL) has been discussed in terms of photosensitized tumor growth delay of tumors and HPLC-retention time, i.e. degree of polarity. 3. The LDL-binding data show a uniform relationship to sensitizing efficiency and degree of polarity, the only exception being HP-diamyl ether. No such uniform relationship exists for less related dyes, such as HP, tetraphenylporphyrin tetrasulfonate and HP-dimethyl ether.
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