Galacto-Oligosaccharide Alleviates Alcohol-Induced Liver Injury by Inhibiting Oxidative Stress and Inflammation

Area of Science:

• Hepatology
• Gastroenterology
• Nutritional Science

Background:

• Alcoholic liver disease (ALD) is a significant global health concern.
• Oxidative stress and inflammation are key drivers of ALD pathogenesis.
• Identifying effective interventions for ALD is crucial.

Purpose of the Study:

• To investigate the protective effects of galacto-oligosaccharide (GOS) against ALD.
• To elucidate the antioxidant and anti-inflammatory mechanisms of GOS in ALD.
• To assess GOS as a potential functional food for ALD prevention and treatment.

Main Methods:

• In vivo and in vitro experiments were conducted to evaluate GOS efficacy.
• Western blot and RT-PCR analyses were used to assess protein and gene expression.
• Key markers of oxidative stress (Nrf2, HO-1) and inflammation (MAPK/NF-κB pathway) were examined.

Main Results:

• GOS treatment reduced cytochrome P450 protein 2E1 (CYP2E1) expression in liver tissues and cells.
• GOS increased the expression of Nrf2 and HO-1, enhancing antioxidant capacity.
• GOS decreased inflammatory factor levels and inhibited the MAPK/NF-κB pathway.

Conclusions:

• Galacto-oligosaccharide (GOS) demonstrates significant antioxidant and anti-inflammatory properties relevant to ALD.
• GOS effectively modulates key molecular pathways involved in ALD.
• GOS presents potential as a functional food for managing alcoholic liver disease.