Adrenal disease

Leukocyte Telomere Length in Children With Congenital Adrenal Hyperplasia

J Clin Endocrinol MetabPublished Prospective observational cohort study

Authors' 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.

Study context

Population
Children with genetically confirmed CAH; median age 12.0 years (IQR 6.3–15.1), 41% girls
Exposure
Leukocyte telomere length (LTL) by CAH type, treatment status and glucocorticoid type
  • Classic CAHn = 63
  • Prednisolonen = 8
  • Hydrocortisonen = 67reference
Outcome
Leukocyte telomere length (LTL) by quantitative real-time PCR
Follow-up
2 visits (mean 4.1 ± 0.7 months apart)
Methodological detailsmulticentre, 4 academic pediatric endocrinology outpatient clinics, linear mixed models adjusted for age, sex and BMI-z
  • Multicentre
  • 4 academic pediatric endocrinology outpatient clinics
  • Linear mixed models adjusted for age, sex and BMI-z

Main finding

As reported in the abstract

LTL

Classic CAH vs Nonclassic CAH · shorter with classic CAH

−0.29

P = 0.012

Overtreated vs Optimally treated · shorter when overtreated

−0.07

P = 0.002

Prednisolone vs Hydrocortisone · shorter with prednisolone

−0.34

P < 0.001

LTL not associated with undertreatment or daily hydrocortisone-equivalent dose
P > 0.05

Observational data: associations, not effects.

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Leukocyte Telomere Length in Children With Congenital Adrenal Hyperplasia. J Clin Endocrinol Metab. Published 1 October 2022. doi:10.1210/clinem/dgac560

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