Ishophloroglucin A Isolated from <i>Ishige okamurae</i> Protects Glomerular Cells from Methylglyoxal-Induced Diacarbonyl Stress and Inhibits the Pathogenesis of Diabetic Nephropathy.

ABSTRACT: Ishige okamurae (I. okamuare), an edible brown alga, is rich in isophloroglucin A (IPA) phlorotannin compounds and is effective in preventing diseases, including diabetes. We evaluated its anti-glycation ability, intracellular reactive oxygen species scavenging activity, inhibitory effect on the accumulation of intracellular MGO/MGO-derived advanced glycation end products (AGE), and regulation of downstream signaling pathways related to the AGE-receptor for AGEs (RAGE) interaction. IPA (0.2, 1, and 5 μM) demonstrated anti-glycation ability by inhibiting the formation of glucose-fructose-BSA-derived AGEs by up to 54.63% compared to the untreated control, reducing the formation of irreversible cross-links between MGO-derived AGEs and collagen by 67.68% and the breaking down of

SUBMITTER: Cho CH 

PROVIDER: S-EPMC11766881 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature