Clinical nutrition ESPEN · 2025
The relationship between bacterial changes and dietary intervention in non-alcoholic fatty liver disease.
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Oğuz Esma, Yılmaz Yusuf, Güneş Fatma Esra
Аннотация
BACKGROUND AND AIM: This study aimed to investigate the levels of Faecalibacterium prausnitzii (F. prausnitzii) and Eubacterium rectale (E. rectale) in patients with non-alcoholic fatty liver disease (NAFLD) and evaluate the impact of dietary intervention on these bacterial populations.
MATERIALS: An interventional study was conducted with 38 NAFLD patients recruited from the Marmara University Gastroenterology Institute. Participants were divided into two groups: a diet intervention group (n = 21) and a control group (n = 17). The dietary intervention consisted of a balanced diet containing 50-55 % carbohydrates, 30-35 % fats, and 15-20 % protein. Fecal samples were collected at baseline and after six weeks for both groups, and bacterial quantification was performed via deoxyribonucleic acid (DNA) analysis of the fecal samples.
RESULTS: In the diet intervention group, a significant increase in E. rectale abundance was observed after six weeks (p = 0.008). Additionally, intakes of dietary fiber, vitamin E, vitamin C, and thiamine were significantly higher in the intervention group compared to the control group by the end of the study (p < 0.05). However, no significant changes were detected in F. prausnitzii levels in either group.
CONCLUSION: The findings demonstrate that dietary intervention can significantly increase E. rectale abundance in NAFLD patients, while F. prausnitzii levels remain unaffected. These results highlight the selective influence of dietary modifications on gut bacterial populations, offering potential implications for the management of NAFLD.
MATERIALS: An interventional study was conducted with 38 NAFLD patients recruited from the Marmara University Gastroenterology Institute. Participants were divided into two groups: a diet intervention group (n = 21) and a control group (n = 17). The dietary intervention consisted of a balanced diet containing 50-55 % carbohydrates, 30-35 % fats, and 15-20 % protein. Fecal samples were collected at baseline and after six weeks for both groups, and bacterial quantification was performed via deoxyribonucleic acid (DNA) analysis of the fecal samples.
RESULTS: In the diet intervention group, a significant increase in E. rectale abundance was observed after six weeks (p = 0.008). Additionally, intakes of dietary fiber, vitamin E, vitamin C, and thiamine were significantly higher in the intervention group compared to the control group by the end of the study (p < 0.05). However, no significant changes were detected in F. prausnitzii levels in either group.
CONCLUSION: The findings demonstrate that dietary intervention can significantly increase E. rectale abundance in NAFLD patients, while F. prausnitzii levels remain unaffected. These results highlight the selective influence of dietary modifications on gut bacterial populations, offering potential implications for the management of NAFLD.