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Andreas Edsfeltdt

Andreas Edsfeldt

Associate professor

Andreas Edsfeltdt

Serum Renin Levels Increase With Age in Boys Resulting in Higher Renin Levels in Young Men Compared to Young Women, and Soluble Angiotensin-Converting Enzyme 2 Correlates With Renin and Body Mass Index


  • Lars Jehpsson
  • Jiangming Sun
  • Peter M. Nilsson
  • Andreas Edsfeldt
  • Per Swärd

Summary, in English

Background: Age, sex, and body constitution may affect the shedding of membrane bound angiotensin-converting enzyme 2 (mACE2) and lead to a relative mACE2 deficiency. However, it is unclear if differences, reflected by serum renin levels, exist in the basal renin-angiotensin-system (RAS) between children and adults, boys, and girls as well as young women and young men. Furthermore, it remains to be investigated if renin and soluble ACE2 (sACE2) levels are correlated with body mass index (BMI) in children and young adults. The aim of this observational study was to assess age-and sex differences in serum renin, and the relationship between renin, soluble angiotensin-converting enzyme 2, and body mass index in a prospectively followed population-based cohort of children which were followed into young adulthood. Study Design: We analyzed renin and sACE2 in serum in a prospectively followed population-based cohort at 9.9 (0.6) [mean (SD)] (n = 173), 11.7 (0.6) (n = 156), 14.8 (0.8) (n = 149), 18.8 (0.3) (n = 93), and 23.5 (0.7) (n = 152) years of age. Height (cm) and weight (kg) was measured and body mass index (BMI) was calculated as weight (kg)/height (m)2. Sex-related differences in renin levels were calculated using analysis of covariance, adjusted for age. Correlations were assessed by calculating the correlation coefficient (R2) using a multivariable linear mixed model. Results: Both sexes had low renin levels up to 12 years of age. Thereafter renin levels increased more in boys than in girls. Males from the age of 15 had significantly higher levels than females (p < 0.001). There was a positive linear relationship between renin and sACE2 levels in male and female subjects (p < 0.001), and between sACE2 levels and BMI in males (p < 0.001). Conclusion: Renin levels increase with age, are higher in men than in women since around puberty, and are correlated with sACE2 levels. Furthermore, sACE2 levels are correlated with body mass index in males. These findings indicate that high renin levels in males and females and a high BMI in males may activate pathways which increase the shedding of mACE2, with possible implications for the risk of severe coronavirus disease 2019.


  • Orthopedics - Clinical and Molecular Osteoporosis Research
  • EXODIAB: Excellence of Diabetes Research in Sweden
  • Diabetes - Molecular Metabolism
  • Internal Medicine - Epidemiology
  • EpiHealth: Epidemiology for Health
  • WCMM-Wallenberg Centre for Molecular Medicine
  • Cardiovascular Research - Translational Studies

Publishing year





Frontiers in Physiology



Document type

Journal article


Frontiers Media S. A.


  • Endocrinology and Diabetes


  • angiotensin-converting enzyme 2
  • body mass index
  • coronavirus–COVID-19
  • renin
  • renin–angiotensin–aldosterone system
  • severe acute respiratory coronavirus 2



Research group

  • Orthopedics - Clinical and Molecular Osteoporosis Research
  • Diabetes - Molecular Metabolism
  • Internal Medicine - Epidemiology
  • Cardiovascular Research - Translational Studies


  • ISSN: 1664-042X