The Efficacy of the Consumption of n-3 Polyunsaturated Fatty Acids for the Maintenance of Remission in Patients with Inflammatory Bowel Disease
- 1 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 2 Department of Nutrition, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 3 Department of Nutrition, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 4 Department of Nutrition, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 5 Department of Nutrition, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 6 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 7 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 8 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 9 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 10 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 11 Department of Nutrition, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 12 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 13 Department of Laboratory Medicine, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 14 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Kashiwa, Japan
- 15 Department of Internal Medicine, Division of Gastroenterology and Hepatology, The Jikei University Hospital, Tokyo, Japan
Abstract
The aim of the present study was to investigate the efficacy of the actual consuming n-3 PUFA for remission-maintenance in IBD patients. A questionnaire on the dietary habits of patients one month before hospitalization (Q1) was completed by 24 patients with IBD (10 ulcerative colitis (UC) subjects and 14 Crohn’s disease (CD) subjects) treated at our hospital. We educated the study subjects about an n-3 PUFA diet, and a follow-up survey (Q2) was conducted 6 to 12 months after discharge. Disease activity was evaluated using the International Organization for the Study of Inflammatory Bowel Disease (IOIBD) score and/or the Crohn’s Disease Activity Index (CDAI) score for CD and the partial UCDAI score without endoscopic evaluation for UC. Q1 showed that the average n-3 and n-6 PUFA intakes were 1673 ± 1651 mg and 9146 ± 5217 mg, respectively, and the average n-3/n-6 ratio was 0.27 ± 0.31. In Q2, the intake of n-3 PUFA was significantly higher (3671 ± 1684 mg, p < 0.001), whereas the n-6 PUFA intake decreased significantly (5217 ± 1973 mg, p < 0.001) compared to those in Q1. As a consequence, the dietary n-3/ n-6 ratio was significantly increased (0.87 ± 0.60, p < 0.001). Maintenance of the remission rate was significantly higher in IBD patients who complied with the n-3 diet, and these patients maintained a dietary n-3/n-6 ratio of 0.432 or higher (17 of 23 cases; 70.8%, p < 0.03) compared to that observed for IBD patients who did not comply with the diet. These results emphasize the importance of adjusting dietary PUFA and suggest that the n-3 diet may be effective in maintaining the remission of IBD.
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