Phototherapy

Findings from Southern Medical University advance knowledge in phototherapy

Published in Pharma Law Weekly, August 11th, 2009

"Our objective was to examine the effect of time intervals between Photofrin injection and laser irradiation [i.e., drug-light interval (DLI)] on the mode of action of Photofrin photodynamic therapy (PDT). Kunming mice transplanted with sarcoma-180 cells were used as an animal model," investigators in Guangzhou, People's Republic of China report.

"The tumor-bearing mice in the control group were given neither photosensitizer nor laser irradiation. PDT groups were given intravenous (i.v.) injection of Photofrin (7.5 mg/kg) prior to being irradiated with a 630 nm laser at 120 J/cm(2) at different DLIs (1 min-48 h). Tumors and overlying skin were visually examined daily....

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Source: Pharma Law Weekly (2009-08-11)

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