Pulse Brain · Growing Health Evidence Index
Tier 4 — Narrative / commentaryPeer-reviewed

Protective Effects of Epigallocatechin-3-Gallate from Green Tea in Various Kidney Diseases

Rattiyaporn Kanlaya, Visith Thongboonkerd

Advances in Nutrition · 2018

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Summary

This 2018 narrative review by Kanlaya and Thongboonkerd synthesises evidence on the nephroprotective mechanisms of epigallocatechin-3-gallate (EGCG), a major catechin polyphenol found in green tea, across diverse kidney disease contexts. The authors examine proposed biological pathways through which EGCG may reduce kidney injury, oxidative damage, and inflammatory signalling, contributing to understanding of dietary phytochemicals in renal health. As a narrative synthesis rather than a systematic review, it provides a curated overview of mechanistic and experimental evidence relevant to dietary approaches to nephroprotection, though does not present novel primary data.

UK applicability

The findings on EGCG's potential nephroprotective mechanisms are relevant to UK dietary guidance and clinical practice for chronic kidney disease management, particularly given increasing interest in plant-based bioactives and personalised nutrition. However, applicability depends on the quality and clinical translatability of the evidence reviewed; UK clinicians would need appraisal of human intervention trials and safety data before recommending green tea supplementation as adjunctive therapy.

Key measures

Mechanisms of EGCG action on kidney protection; markers of renal injury, oxidative stress, and inflammation across kidney disease models

Outcomes reported

The narrative review synthesised evidence on mechanisms by which EGCG, a polyphenol from green tea, may confer protective effects across multiple kidney disease contexts. The review appears to evaluate EGCG's potential roles in reducing kidney injury, oxidative stress, and inflammatory markers in various nephropathies.

Theme
Nutrition & health
Subject
Phytochemicals & bioactive compounds
Study type
Narrative Review
Study design
Narrative review
Source type
Peer-reviewed study
Status
Published
System type
Human clinical
DOI
10.1093/advances/nmy077
Catalogue ID
SNmoi53jjw-f6a6wi

Topic tags

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