The inhibitory effects of blueberry leaves on the proliferation of adult T-cell leukemia (ATL) cell lines have previously been reported. A comparison of blueberry leaf extracts from different cultivars and seasonal variation were investigated regarding their effects on ATL cell line proliferation. The inhibitory effects of 80% ethanol leaf extracts from different blueberry cultivars collected from April to December in 2006 or 2008 were evaluated using two ATL cell lines. The bioactivities of leaf extracts of rabbit-eye blueberry ( Aiton; RB species), southern highbush blueberry ( spp.; SB species), northern highbush blueberry ( L.; NB species), and wild blueberry ( Thunb.; WB species) were compared. Of these, leaves of the RB species collected in December showed a significantly stronger inhibitory effect in both cell lines than the SB, NB, or WB species. These results suggest elevated biosynthesis of ATL-preventative bioactive compounds in the leaves of the RB species before the defoliation season.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5532976 | PMC |
http://dx.doi.org/10.3390/medicines1010003 | DOI Listing |
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