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Estimation of Nephron Number in Whole Kidney using the Acid Maceration Method
Published on: May 22, 2019
Nephron mass and cardiovascular and renal disease risks
Carolyn L Abitbol1, Julie R Ingelfinger
1Division of Pediatric Nephrology, University of Miami, Miami, FL 33101-6960, USA. cabitbol@med.miami.edu
Seminars in Nephrology
|July 21, 2009
Summary
Nephron endowment, established during gestation, influences lifelong kidney health. Lower nephron numbers increase risks for hypertension and cardiovascular/renal diseases later in life.
Area of Science:
- Developmental biology
- Nephrology
- Genetics
Background:
- Nephrogenesis establishes the kidney's nephron count, influenced by genetic and environmental factors.
- The average human kidney has about 1 million nephrons, with significant individual variation.
- Low nephron mass is linked to hypertension and increased cardiovascular and renal disease risks.
Purpose of the Study:
- To explore the developmental origins of nephron endowment.
- To highlight the association between nephron number and later-life health outcomes.
- To emphasize the impact of early life factors on renal health.
Main Methods:
- Review of developmental and epidemiological literature.
- Analysis of factors influencing nephrogenesis.
- Correlation of birth parameters with long-term health data.
Main Results:
- Nephron number is established by approximately 36 weeks of gestation.
- Birth weight and gestational age are directly related to kidney size and nephron number.
- Preterm birth and intrauterine growth restriction are associated with reduced nephron mass.
Conclusions:
- Early life factors significantly shape nephron endowment.
- Adequate nephron endowment is crucial for preventing adult-onset renal and cardiovascular diseases.
- Understanding nephrogenesis is key to mitigating kidney disease risk.
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