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Theaflavin digallate
Theaflavin
digallate
is an antioxidant
natural phenol
found in
black tea
, and a
theaflavin
derivative
.
Health
TFDG is a
scavenger
of
superoxide
in
vitro
, even more so than
EGCG
.
Tea polyphenols
including TFDG
reduce
angiogenesis
, which is implicated in non-liquid
cancers
, an area of
intense
current
research
, by decreasing
vascular endothelial growth factor
production and
receptor
phosphorylation
.
TFDG inhibits
activity
of the
enzyme
3CLpro
in vitro
.