Leukocyte Telomere Length in Children With Congenital Adrenal Hyperplasia

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CONTEXT: Exposure to chronic stress and hypercortisolism is associated with decreased leukocyte telomere length (LTL), a marker for biological aging and cardiovascular disease. Children with congenital adrenal hyperplasia (CAH) are treated with glucocorticoids.

OBJECTIVE: To investigate LTL in children with CAH.

METHODS: In this prospective observational cohort study, conducted at 4 academic pediatric endocrinology outpatient clinics, children with genetically confirmed CAH were assessed at 2 follow-up visits (mean 4.1 ± 0.7 months apart). At each visit, LTL was determined by quantitative real-time PCR. All subjects underwent detailed clinical and endocrinologic evaluation and were classified as undertreated, optimally treated, or overtreated, accordingly. The influence of clinical factors on LTL was investigated using linear mixed models adjusted for age, sex, and BMI-z.

RESULTS: We studied 76 patients, of whom 31 (41%) were girls, 63 (83%) had classic CAH, 67 (88%) received hydrocortisone, and 8 (11%) prednisolone. Median age at first visit was 12.0 years (IQR, 6.3-15.1), and median BMI-z was 0.51 (IQR, -0.12 to 1.43). LTL was shorter in patients with classic vs nonclassic CAH (-0.29, P = 0.012), in overtreated than in optimally treated patients (-0.07, P = 0.002), and patients receiving prednisolone compared with hydrocortisone (-0.34, P < 0.001). LTL was not associated with undertreatment or daily hydrocortisone-equivalent dose (P > 0.05).

CONCLUSION: LTL is shorter in patients with classic than nonclassic CAH, and in those who are overtreated with hydrocortisone or treated with long-acting glucocorticoids. These findings may be attributed to chronic exposure to supraphysiologic glucocorticoid concentrations and indicate that LTL may be used as a biomarker for monitoring glucocorticoid treatment.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:108

Enthalten in:

The Journal of clinical endocrinology and metabolism - 108(2023), 2 vom: 17. Jan., Seite 443-452

Sprache:

Englisch

Beteiligte Personen:

Raftopoulou, Christina [VerfasserIn]
Abawi, Ozair [VerfasserIn]
Sommer, Grit [VerfasserIn]
Binou, Maria [VerfasserIn]
Paltoglou, George [VerfasserIn]
Flück, Christa E [VerfasserIn]
van den Akker, Erica L T [VerfasserIn]
Charmandari, E [VerfasserIn]

Links:

Volltext

Themen:

21-hydroxylase
9PHQ9Y1OLM
Adolescents
Congenital adrenal hyperplasia
Glucocorticoid
Glucocorticoids
Hydrocortisone
Journal Article
LTL
Observational Study
Prednisolone
Research Support, Non-U.S. Gov't
Telomeres
WI4X0X7BPJ

Anmerkungen:

Date Completed 19.01.2023

Date Revised 16.02.2023

published: Print

Citation Status MEDLINE

doi:

10.1210/clinem/dgac560

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346969751