Foods · 3 authors, 3 centres
This summary was generated by AI from a single paper. It has not been reviewed by a clinician and is not clinical advice. Verify against the source before acting on it.
This preclinical study used a mouse model of DSS-induced colitis to investigate the effects of whole blackcurrant powder. The main finding was that blackcurrant administration alleviated clinical symptoms, histological damage, and pro-inflammatory cytokine levels, while modulating gut microbiota and inhibiting the NF-κB signaling pathway. The most important limitation is that this is an animal study, and the findings may not directly translate to human ulcerative colitis.
Inflammatory bowel disease (IBD), specifically ulcerative colitis (UC), is a chronic inflammatory condition with limited treatment efficacy and adverse effects. Natural products like anthocyanin-rich blackcurrant (BC) are being explored for their potential anti-inflammatory effects. This study aimed to investigate whether whole BC powder alleviates DSS-induced colitis in mice. Methods: Male C57BL/6J mice (n=8 per group) were divided into Vehicle, DSS, and DSS+BC groups. Colitis was induced with 3% DSS in drinking water for 6 days. The DSS+BC group received 150 mg/mouse/day of BC powder. Clinical symptoms (body weight, disease activity index, colon length), histological damage, pro-inflammatory cytokines (TNF-α, IL-1β, IL-6), gene/protein expression (NF-κB pathway, tight junction proteins, mucin), and gut microbiota were assessed. Key Results: BC administration significantly improved disease activity index, colon length, and histological damage scores compared to the DSS group. It reduced serum TNF-α and colon tissue TNF-α and IL-1β levels. BC inhibited the NF-κB signaling pathway (reduced p-p65, iNOS, COX-2 expression) and enhanced expression of tight junction proteins (ZO-1, occludin) and mucin genes. Gut microbiota analysis showed BC modulated the composition altered by DSS, increasing beneficial genera like Ligilactobacillus. Limitations: This is a preclinical animal study; the findings may not directly translate to human UC. The study used a specific mouse model and dose, and the precise mechanisms of gut microbiota modulation require further investigation. Implications: Whole BC powder shows potential as a natural dietary material to improve UC by regulating inflammation and gut microbiota, but human clinical trials are needed to confirm efficacy and safety.
