# Liver-Kidney Crosstalk in Major Pediatric Diseases: Unraveling the Complexities and Clinical Challenges

## TL;DR

This review explores how the liver and kidneys interact in major childhood diseases, highlighting the challenges and need for better understanding to improve treatment.

## Contribution

The paper provides a comprehensive overview of liver-kidney crosstalk in pediatric diseases and emphasizes the need for integrated treatment strategies.

## Key findings

- Liver-kidney crosstalk is critical in pediatric diseases like MASLD and HRS.
- Shared factors like inflammation and oxidative stress affect both organs simultaneously.
- Integrated multidisciplinary approaches are needed to address clinical challenges.

## Abstract

The liver and kidneys are two of the most vital organs, each with distinct but overlapping functions essential for maintaining homeostasis. The complex interplay between these organs, commonly referred to as liver-kidney crosstalk, plays a crucial role in the pathophysiology of several acute and chronic conditions in childhood. Despite its importance, the precise biological mechanisms driving this interaction remain incompletely understood. This crosstalk is particularly significant in various pediatric diseases (e.g., Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD), Hepatorenal Syndrome (HRS), genetic and metabolic disorders, etc.) where shared pathophysiological factors—including systemic inflammation, metabolic disturbances, oxidative stress, and vascular dysfunction—simultaneously affect both organs. Clinically, this interaction presents unique challenges in diagnosing, managing, and treating liver-kidney diseases in affected children. Understanding the pathogenic mechanisms underlying liver-kidney crosstalk is essential for improving patient care and outcomes through an integrated, multidisciplinary approach and personalized treatment strategies. This review aims to explore liver-kidney crosstalk in key pediatric diseases, offering a comprehensive overview of current knowledge, clinical challenges, and potential therapeutic interventions in this complex field.