Association of hepatokines with markers of endothelial dysfunction and vascular reactivity in obese adolescents

© 2024 Walter de Gruyter GmbH, Berlin/Boston..

OBJECTIVES: Obesity-induced insulin resistance (IR) is known to influence hepatic cytokines (hepatokines), including fibroblast growth factor (FGF-21), fetuin-A, and chemerin. This study aimed to investigate the association between hepatokines and markers of endothelial dysfunction and vascular reactivity in obese adolescents.

METHODS: A total of 45 obese adolescents were categorized into three groups based on glucose tolerance: normal glucose tolerance (NGT), prediabetes (PD), and type 2 diabetes (T2D). We examined the relationships between FGF-21, fetuin-A, and chemerin with endothelial markers (plasminogen activator inhibitor-1 [PAI-1], intercellular adhesion molecule-1 [ICAM-1], and vascular cell adhesion marker-1 [VCAM-1]) and vascular surrogates (brachial artery reactivity testing [BART] and peak reactive hyperemia [PRH]).

RESULTS: Obese adolescents (age 16.2±1.2 years; 62 % female, 65 % Hispanic) with NGT (n=20), PD (n=14), and T2D (n=11) had significant differences between groups in BMI; waist-hip ratio (p=0.05), systolic BP (p=0.008), LDL-C (p=0.02), PAI-1 (p<0.001). FGF-21 pg/mL (mean±SD: NGT vs. PD vs. T2D 54±42; 266±286; 160±126 p=0.006) and fetuin-A ng/mL (266±80; 253±66; 313±50 p=0.018), were significantly different while chemerin ng/mL (26±5; 31±10; 28±2) did not significantly differ between the groups. Positive correlations were found between chemerin and both PAI-1 (r=0.6; p=0.05) and ICAM-1 (r=0.6; p=0.05), FGF-21 and PAI-1 (r=0.6; p<0.001), and fetuin-A with TNFα (r=-0.4; p=0.05). Negative correlations were found between chemerin and PRH (r= -0.5; p=0.017) and fetuin-A and PRH (r=-0.4; p=0.05).

CONCLUSIONS: In our cohort, IR predicted higher FGF-21 levels suggesting a linear relationship may exist between the two parameters. Hepatokines can augment alterations in the microvascular milieu in obese adolescents as demonstrated by their associations with the markers PAI-1, ICAM-1, and PRH.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:37

Enthalten in:

Journal of pediatric endocrinology & metabolism : JPEM - 37(2024), 4 vom: 25. Apr., Seite 309-316

Sprache:

Englisch

Beteiligte Personen:

Stein, David [VerfasserIn]
Ovadia, Daniela [VerfasserIn]
Katz, Stuart [VerfasserIn]
Brar, Preneet Cheema [VerfasserIn]

Links:

Volltext

Themen:

126547-89-5
Adolescent obesity
Alpha-2-HS-Glycoprotein
Chemerin
Diabetes mellitus
Endothelial dysfunction
Fetuin-A
Fibroblast growth factor 21 (FGF-21)
Glucose
IY9XDZ35W2
Intercellular Adhesion Molecule-1
Journal Article
Plasminogen Activator Inhibitor 1

Anmerkungen:

Date Completed 11.04.2024

Date Revised 13.04.2024

published: Electronic-Print

Citation Status MEDLINE

doi:

10.1515/jpem-2023-0339

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368940055