The Anti-Inflammatory Effects of Broccoli ( Brassica oleracea L. var. italica) Sprout Extract in RAW 264.7 Macrophages and a Lipopolysaccharide-Induced Liver Injury Model.
Level 5 - mechanism / opinion, no new human data
Preclinical in vitro and in vivo animal study without human participants
PubMed 37998749 · doi:10.3390/cimb45110572
What was done
Researchers evaluated the anti-inflammatory effects of a sulforaphane-rich broccoli sprout extract (BSE) using cell and animal models. In vitro, RAW 264.7 macrophages were exposed to lipopolysaccharide (LPS), and inflammatory mediators (COX-2, IL-1β, IL-6, IL-1, iNOS, TNF-α) were assessed via qPCR and enzyme immunoassay. In vivo, mice subjected to LPS-induced endotoxemia and liver injury received BSE pretreatment to measure survival, liver transaminases (ALT, AST), hepatic pro-inflammatory cytokine expression, and macrophage infiltration using F4/80 immunostaining.
What was found
The abstract reports no numerical values or effect sizes. In RAW 264.7 cells, BSE suppressed the expression of COX-2, IL-1β, IL-6, IL-1, iNOS, and TNF-α. In LPS-treated mice, BSE pretreatment improved survival rates, reduced ALT and AST expression, decreased hepatic levels of IL-1β, TNF-α, IL-6, COX-2, and iNOS, and suppressed hepatic F4/80-positive macrophage infiltration.
Why it matters
The findings characterize potential pathways through which broccoli sprout components, particularly sulforaphane, modulate acute inflammatory responses and protect against experimental liver injury.
Limits
The study is restricted to preclinical cell culture and acute mouse models, which may not translate directly to human physiology or clinical inflammatory diseases. The abstract lacks sample sizes, dosing details, and exact quantitative effect estimates with variance metrics.
Cited by
- supports Whole broccoli sprouts contain dietary fiber, vitamins, and minerals that are absent in purified sulforaphane supplements.