Puberty and microvascular function in healthy children and adolescents

Area of Science:

• Pediatric vascular health
• Adolescent physiology
• Cardiovascular research

Background:

• Microvascular function is crucial for overall cardiovascular health.
• Understanding factors influencing vascular health during childhood and adolescence is essential for long-term well-being.
• Pubertal development represents a period of significant physiological change.

Purpose of the Study:

• To investigate the role of pubertal status in determining microvascular function among healthy children and adolescents.
• To identify key predictors of microvascular function in pediatric populations.

Main Methods:

• A prospective cross-sectional study involving 112 children and adolescents aged 10-16 years.
• Microvascular function assessed using peripheral arterial tonometry to measure the reactive hyperemic index (RHI).
• Participants categorized into prepuberty, mid-puberty, and late puberty groups based on Tanner stages; regression analysis used to identify predictors of RHI.

Main Results:

• Pubertal status, indicated by Tanner stage, was the sole independent predictor of microvascular function (R 2 = 0.242, P < .001).
• Significant correlations were found between RHI and Tanner stage, age, stature, systolic blood pressure, and body mass index.
• Prepubertal children exhibited significantly lower RHI values compared to those in mid- and late-puberty.

Conclusions:

• Pubertal status is the primary determinant of microvascular function in healthy pediatric populations.
• Future research on pediatric microvascular function should account for pubertal maturation status.