eISSN: 1644-4124
ISSN: 1426-3912
Central European Journal of Immunology
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SCImago Journal & Country Rank
2/2022
vol. 47
 
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abstract:
Clinical immunology

24-hour central blood pressure and immune system activation in adolescents with primary hypertension – a preliminary study

Piotr Skrzypczyk
1
,
Adam Bujanowicz
2
,
Anna Ofiara
1
,
Michał Szyszka
3
,
Małgorzata Pańczyk-Tomaszewska
1

1.
Department of Pediatrics and Nephrology, Medical University of Warsaw, Poland
2.
Student Scientific Group at the Department of Pediatrics and Nephrology, Medical University of Warsaw, Poland
3.
Department of Pediatrics and Nephrology, Doctoral School, Medical University of Warsaw, Poland
Cent Eur J Immunol 2022; 47 (2): 160-167
Online publish date: 2022/07/15
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Introduction
Adult and pediatric data suggest a positive relationship between the extent of subclinical inflammation, blood pressure, and hypertension-mediated organ damage (HMOD) in primary hypertension (PH). 24-hour (24-h) ambulatory blood pressure (ABPM) and central blood pressure (CBP) are strong predictors of HMOD. Our study aimed to analyze the relationship between 24-h central ABPM, subclinical inflammation, and clinical data in adolescents with PH.

Material and methods
In 28 untreated adolescents with PH (14.50 ±2.27 years) and 25 healthy peers (14.76 ±2.83 years), we analyzed 24-h peripheral and central ABPM, markers of subclinical inflammation (neutrophil-to-lymphocyte ratio – NLR, platelet-to-lymphocyte ratio – PLR, mean platelet volume – MPV), and clinical and biochemical data.

Results
Patients with PH had higher 24-h peripheral and central blood pressure than healthy peers. In all 53 patients, we found significant (p < 0.05) positive correlations between NLR, PLR and 24-h central systolic, diastolic, and mean blood pressure (24-h cSBP, 24-h cDBP, 24-h cMAP), between 24-h central augmentation index corrected for heart rate 75 (24-h cAIx75HR) and platelet count. In 28 patients with PH, 24-h cAIx75HR correlated with low-density lipoprotein (LDL) cholesterol (R = 0.442), and ambulatory arterial stiffness index with body mass index (BMI) (R = 0.487), uric acid (R = 0.430), and high-density lipoprotein (HDL) cholesterol (R = –0.428).

Conclusions
Increased central 24-h blood pressure may be associated with immune system activation in adolescents with primary hypertension. In adolescents with primary hypertension, dyslipidemia and hyperuricemia are risk factors for increased arterial stiffness. Further studies on central and peripheral blood pressure in terms of their relationship with inflammation in these patients are needed.

keywords:

adolescents, central blood pressure, subclinical inflammation, ambulatory blood pressure monitoring, primary hypertension, immune system activation

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