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Published on: June 30, 2018
Albuminuria in children
Erin R Rademacher1, Alan R Sinaiko
1Division of Pediatric Nephrology, Department of Pediatrics, University of Rochester, Rochester, New York 14642, USA. erin_rademacher@urmc.rochester.edu
Insights
Albuminuria assessment in children is crucial for predicting future cardiovascular and kidney disease. Early detection in pediatric populations can guide interventions for better long-term health outcomes.
Area of Science:
- Pediatric Nephrology
- Cardiovascular Health
- Metabolic Disease
Background:
- Albuminuria signifies current and future cardiovascular and renal risks in adults.
- Early life factors contribute to adult-onset diseases, making pediatric albuminuria assessment relevant.
- Understanding pediatric albuminuria is key to preventing long-term morbidity and mortality.
Purpose of the Study:
- To review the relevance of albuminuria assessment in child and adolescent clinical care.
- To explore the relationship between albuminuria and various health markers in children.
- To highlight the need for longitudinal studies in pediatric albuminuria.
Main Methods:
- Review of current literature on pediatric albuminuria.
- Analysis of factors associated with albuminuria in healthy, obese, and diabetic children.
- Examination of clinical predictors and potential mechanisms.
Main Results:
- Normal albumin excretion in children is significantly lower than microalbuminuria cut-offs.
- In healthy children, albuminuria correlates with fasting insulin.
- Obese children show albuminuria linked to insulin resistance; type 1 diabetes shows links to HbA1c; type 2 diabetes and hypertension present with microalbuminuria.
Conclusions:
- Children are ideal subjects for studying albuminuria's natural history due to fewer co-morbidities.
- The increasing prevalence of 'adult' diseases in children makes this research vital.
- Longitudinal studies are needed to identify predictors and treatments for elevated urinary albumin levels.
Purpose Of Review:
Albuminuria is a marker of present and future cardiovascular and renal morbidity, and mortality, in adults. Because the roots of these diseases extend back into childhood, assessment of albuminuria has become relevant to child and adolescent clinical care.
Recent Findings:
Normal levels of albumin excretion in children are well below the cut-off for microalbuminuria. In healthy children, albuminuria relates to fasting insulin, but not blood pressure, BMI, lipid levels, fasting glucose, or insulin resistance. In obese children, albuminuria relates to multiple measures of insulin resistance. In children with type 1 diabetes, hemoglobin A1c seems to be the most consistent clinical predictor of microalbuminuria although multiple mechanisms seem to be involved, including genetic polymorphisms. Children with type 2 diabetes and hypertension already exhibit microalbuminuria.
Summary:
When considering the population as a whole, children make ideal subjects in which to study the natural history of albuminuria given their relative lack of multiple morbidities commonly seen in adults. The unfortunate rise in 'adult' diseases in the pediatric age group makes this especially relevant. There is a need for longitudinal studies examining predictors of elevated urinary albumin levels as well as potential treatment strategies.
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