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Table 1 Inhibiting effect of red microalgal polysaccharides on formation of foci by MuSV-124 and on virus production, as measured by reverse transcriptase (RT) activity

From: Anti-viral activity of red microalgal polysaccharides against retroviruses

Algal polysaccharide

Virus

ffu50 protection (μg/ml)

RT50 reduction (μg/ml)

Porphyridium sp.

MuSV-124

10

-

 

MuSV/MuLV

-

5

P. aerugineum

MuSV-124

500

-

 

MuSV/MuLV

-

200

Rhodella reticulata

MuSV-124

150

-

 

MuSV/MuLV

-

50

  1. NIH/3T3 cells were infected with MuSV-124 or MuSV/MuLV in the presence of various concentrations of algal polysaccharides. ffu50 protection and RT50 reduction represent the concentration of polysaccharide that offers 50% protection against the formation of foci of malignant cells and 50% reduction of RT activity, respectively. Data represent mean values of five separate experiments.