Abstract
Abstract
Background
Preterm birth has been identified as a risk factor for development of long-term chronic kidney disease. Podocyte loss has been reported to contribute to this process in preterm animal models. However, details about podocyte loss in preterm infants and related perinatal risk factors have not been well clarified.
Methods
Forty full-term infants and 106 preterm infants were enrolled. Urine samples were collected from full-term infants within 4–7 days of birth and preterm infants at 37–40 weeks of corrected age. Levels of urine podocin mRNA, urine protein (UP), and urine microalbumin (UMA) were measured, and the relationship between these markers was evaluated. Clinical information in these infants was collected, and potential correlates that may lead to increased podocyte loss during the perinatal period were identified using linear regression analysis.
Results
Urine podocyte loss indicated by the urine podocin mRNA to creatinine ratio (UpodCR) was higher in preterm infants than in full-term infants. UpodCR was correlated with the levels of UP and UMA. Multiple linear regression analysis also showed that lower gestational age (GA) at birth and small for gestational age (SGA) were high risk factors for urine podocyte loss.
Conclusions
Increasing urine podocyte loss was identified in preterm infants. Moreover, perinatal factors were associated with podocyte loss and may be a potential direction for comprehensive research and intervention in this field.
Graphical Abstract
A higher resolution version of the Graphical abstract is available as Supplementary information
Funder
National Natural Science Foundation of China
Tianjin Health Commission
China International Medical Foundation
Tianjin Science and Technology Committee
Publisher
Springer Science and Business Media LLC
Subject
Nephrology,Pediatrics, Perinatology and Child Health
Cited by
7 articles.
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