論文種別 原著(症例報告除く)
言語種別 英語
査読の有無 その他(不明)
表題 Effects of processed low-protein brown rice on patients with chronic kidney disease.
掲載誌名 正式名:Clinical and experimental nephrology
略  称:Clin Exp Nephrol
ISSNコード:14377799/13421751
掲載区分国外
巻・号・頁 pp.Online ahead of print
著者・共著者 Keika Adachi, Marie Yasuda, Makiko Ida, Yoichi Oshima, Tatsuhiko Azegami, Ayumi Yoshifuji, Rina Osada, Izumi Oki, Junichro Irie, Takeshi Kanda, Ryo Takemura, Kaori Hayashi, Shu Wakino
発行年月 2026/05
概要 BACKGROUND:Alterations in gut microbiota are prevalent in patients with chronic kidney disease (CKD) and are associated with pathogenic phenotypes, including the progression of kidney damage and defecation conditions. We developed a fermented low-protein brown rice (LPBR), a whole grain unpolished rice, and examined its effects on renal function, defecation condition, and gut microbiota composition in CKD patients.METHODS:In this 3-month, single-arm study, 30 outpatients with stage 3 - 4 CKD were recruited and received a dietary intervention with LPBR. Changes in the defecation condition were evaluated using the Constipation Scoring System (CSS) and the Bristol Stool Form Scale. Alterations in urinary protein excretion and estimated glomerular filtration rate (eGFR) as well as stool condition were assessed as primary outcomes.RESULTS:Among the 29 participants with CKD, intervention with LPBR led to a significant improvement in CSS scores (P = 0.023), a reduction in urinary protein excretion (P = 0.050), and a decrease in eGFR levels (P = 0.044). Fecal acetic acid increased (P = 0.024) and the abundance of Bifidobacterium longum in the gut microbiota increased (P = 0.094). Changes in Bifidobacterium longum were positively associated with alterations in fecal acetic acid levels and CCS scores. Additionally, changes in fecal acetic acid were positively associated with changes in eGFR and Bristol stool scores.CONCLUSION:The trend toward increased Bifidobacterium longum abundance and elevated acetic acid production with LPBR intake may contribute to the attenuation of CKD complications. Our findings suggest that LPBR intervention may offer beneficial effects for CKD patients.
DOI 10.1007/s10157-026-02877-y
PMID 42189410