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Published on: January 7, 2018
Impact of preterm birth on kidney health and development
Sara Akalay1,2, Maissa Rayyan1,3, Tom Fidlers4
1Department of Development and Regeneration, Katholieke Universiteit Leuven, Leuven, Belgium.
Insights
Preterm birth impacts kidney development, reducing nephrons and increasing long-term kidney disease risk. Further research is vital for prevention and treatment strategies.
Area of Science:
- Neonatology
- Nephrology
- Developmental Biology
Background:
- Preterm birth (before 37 weeks) affects 11% of newborns globally.
- Immediate complications of prematurity are well-studied, but long-term consequences, like kidney disease, are less understood.
- Premature infants exhibit interrupted kidney development, resulting in fewer functional nephrons.
Purpose of the Study:
- To review current knowledge on nephrogenesis and its disruption in preterm infants.
- To examine epidemiological and experimental evidence linking prematurity to later-life kidney disease.
- To identify critical knowledge gaps in understanding this relationship.
Main Methods:
- Review of existing literature on nephrogenesis.
- Analysis of epidemiological studies on preterm birth and kidney disease.
- Examination of experimental data on kidney development in prematurity.
Main Results:
- Nephrogenesis is significantly altered in preterm infants, leading to reduced nephron number.
- Epidemiological data show a higher incidence of kidney disease in individuals born preterm.
- Experimental studies support the link between altered kidney development and long-term renal dysfunction.
Conclusions:
- Premature birth disrupts normal kidney development, increasing the lifelong risk of kidney disease.
- Understanding the interplay between prematurity, developmental changes, and disease risk is essential.
- Effective preventive and therapeutic strategies require further investigation into these long-term effects.
Abstract:
Preterm birth, defined as birth before the gestational age of 37 weeks, affects 11% of the newborns worldwide. While extensive research has focused on the immediate complications associated with prematurity, emerging evidence suggests a link between prematurity and the development of kidney disease later in life. It has been demonstrated that the normal course of kidney development is interrupted in infants born prematurely, causing an overall decrease in functional nephrons. Yet, the pathogenesis leading to the alterations in kidney development and the subsequent pathophysiological consequences causing kidney disease on the long-term are incompletely understood. In the present review, we discuss the current knowledge on nephrogenesis and how this process is affected in prematurity. We further discuss the epidemiological evidence and experimental data demonstrating the increased risk of kidney disease in these individuals and highlight important knowledge gaps. Importantly, understanding the intricate interplay between prematurity, abnormal kidney development, and the long-term risk of kidney disease is crucial for implementing effective preventive and therapeutic strategies.
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