FROM: Alternative Medicine Review 2010 (Dec); 15 (4): 352–360
Intake of broccoli sprouts, a rich source of the
glucosinolate glucoraphanin, has been associated
with decreased incidence, multiplicity, and tumor
growth in animal cancer models. [1–3] In 1992, Paul
Talalay, MD, and colleagues at Johns Hopkins
University identified the isothiocyanate, sulforaphane,
a biologically active metabolite of glucoraphanin,
as the compound in broccoli responsible
for many of its health benefits. [4] Since that time,
more than 500 studies have been conducted on the
mechanisms and biological activity of sulforaphane
and its precursor, glucoraphanin. [5] Glucoraphanin,
also referred to as sulforaphane glucosinolate
(SGS), is the most potent naturally-occurring
inducer of phase 2 detoxification enzymes [4,6] and is
an indirect, long-acting antioxidant. [7–9]
Sulforaphane also exhibits broad-spectrum
antimicrobial activity against numerous grampositive
and -negative bacteria, [10] most notably
Helicbacter pylori. [11] In addition, sulforaphane
possesses anti-inflammatory activity; it inhibits
cytokine production in preclinical and clinical
studies. [12–14] Sulforaphane’s multiple molecular
targets and promising early research have lead to
15 clinical trials currently underway to assess its
effects on various cancers, cardiovascular disease,
upper airway inflammation, radiation dermatitis,
and vascular health. [15]