Related Experiment Video
Updated: May 29, 2026

Mouse Model of Acute to Chronic Kidney Disease Transition Induced by Renal Ischemia/Reperfusion Injury
Published on: February 10, 2026
Role of vitamin A in preventing renal scarring after acute pyelonephritis
Reza Dalirani1, Mojtaba Yousefi Zoshk, Mostafa Sharifian
1Pediatric Infectious Research Center, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. rdalirani@yahoo.com
Insights
Vitamin A supplementation alongside antibiotics significantly reduced kidney scarring in children with acute pyelonephritis. This finding suggests vitamin A is beneficial in managing this pediatric kidney infection.
Area of Science:
- Pediatric Nephrology
- Nutritional Science
- Infectious Diseases
Background:
- Vitamin A's role in mucosal healing is established.
- Acute pyelonephritis can lead to renal scarring in children.
- Preventing renal scarring is crucial for long-term kidney health.
Purpose of the Study:
- To investigate the efficacy of vitamin A in preventing renal scarring post-acute pyelonephritis in children.
- To compare renal scarring outcomes in children treated with antibiotics plus vitamin A versus antibiotics alone.
Main Methods:
- A randomized clinical trial involving children diagnosed with acute pyelonephritis.
- Patients received either ceftriaxone with vitamin A or ceftriaxone alone.
- Dimercaptosuccinic acid (DMSA) renal scintigraphy was used to assess renal scarring before and 6 months after treatment.
Main Results:
- Seventy-six children (mean age 25 months) were enrolled; 71.1% were under 2 years old.
- Baseline DMSA scans showed no significant difference in scarring between groups (P = .53).
- Post-treatment DMSA scans revealed significantly less renal injury progression and scarring in the vitamin A plus antibiotic group compared to the antibiotic-only group (P < .001).
Conclusions:
- Vitamin A administration is effective in reducing kidney injury and scarring following acute pyelonephritis in children.
- Vitamin A can be a valuable adjunct therapy in managing pediatric acute pyelonephritis.
- This study supports the use of vitamin A in conjunction with antibiotics for improved outcomes in children with pyelonephritis.
Introduction:
The role of vitamin A in re-epithelialization of the damaged mucosal surfaces has been documented. The aim of this study was to evaluate the role of vitamin A in preventing renal scaring after acute pyelonephritis in children.
Materials And Methods:
This clinical trial study was conducted in children with acute pyelonephritis in Mofid Children Hospital (Tehran, Iran). Patients were randomly divided into two groups to receive ceftriaxone and vitamin A or ceftriaxone only. Dimercaptosuccinic acid (DMSA) renal scintigraphy was performed before the start of the treatment and 6 months later. Results were compared for renal scaring between the two groups.
Results:
Seventy-six patients (11 boys and 65 girls) were enrolled. The mean age was 25 ± 24 months and 54 patients (71.1%) were under 2 years old. The average vitamin A level was 71 ± 24 microg/dL in the treatment group and it was 62 ± 18 µg/dL in the control group. Baseline DMSA scans were comparable between the two groups in terms of scarring (P = .53), but the second DMSA scans showed a significant change in progression of the renal injury and scaring in the control group compared to those treated with vitamin A as well as antibiotic (P < .001).
Conclusions:
We found administration of the vitamin A was useful in decreasing the amount of the injury and scarring following the pyelonephritis. Based on our study, vitamin A can be used in conjunction with other treatments in the management of acute pyelonephritis in children.
Related Concept Videos
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Acute Pyelonephritis II: Diagnostic Studies and Management
Acute Pyelonephritis I: Introduction
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury V: Interprofessional Care
Acute Kidney Injury I: Introduction

