Cited by 86Hypothalamic control of reproductive hormonesSexual Differentiation and DisordersGenetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities

Circulating MKRN3 levels decline prior to pubertal onset and through puberty: a longitudinal study of healthy girls

Hagen, Casper P., Sørensen, Kaspar, Mieritz, Mikkel G., Johannsen, Trine Holm, Almstrup, Kristian, Juul, Anders·2015·The Journal of Clinical Endocrinology & Metabolism

Abstract

CONTEXT: Puberty is initiated by a complex interaction of suppressing and stimulating factors. Genetic studies of familial central precocious puberty have suggested makorin ring finger protein 3 (MKRN3) as a major inhibitor of GnRH secretion during childhood. Furthermore, genetic variation near MKRN3 (rs12148769) affects age at menarche in healthy girls. OBJECTIVE: The purpose of this study was to evaluate whether serum levels of MKRN3 declined before pubertal onset in healthy girls. DESIGN: This was a population-based longitudinal study of healthy Danish girls and a cohort study of early maturing girls. SETTING: The study was performed in the general community and in a tertiary referral center for pediatric endocrinology. PATIENTS OR OTHER PARTICIPANTS: Healthy girls (n = 38) aged 9.3 years (range, 5.9-11.3 years) at baseline and followed for 6.0 years (2.7-7.6 years) (2006-2014) with blood sampling every 6 months and early maturing girls (n = 13) with breast development ay <8.3 years of age were included. MAIN OUTCOME MEASURES: Serum levels of MKRN3 were measured in 354 samples (median, 9 per girl; range, 2-14 per girl), and genotyping of variants near MKRN3 (rs12148769 and rs12439354) was performed. RESULTS: MKRN3 concentrations declined preceding pubertal onset; the geometric mean (95% confidence interval) 3 years before pubertal onset vs the last visit before pubertal onset was 304 pg/mL (264-350 pg/mL) vs 257 pg/mL (243-273 pg/mL), corresponding to a reduction of 15% (1-27%) (P = .033). In prepubertal girls, circulating MKRN3 correlated negatively with gonadotropin levels: for FSH, r = -0.262 (P = .015) and for LH, r = -0.226 (P = .037). After adjustment, MKRN3 levels were lower in early maturing girls than in age-matched prepubertal girls: 171 pg/mL (<25-333 pg/mL) vs 262 pg/mL (94-624 pg/mL) (P = .051). Genetic variants near MKRN3 did not correlate with serum levels of MKRN3. CONCLUSIONS: Declining levels of circulating MKRN3 preceded pubertal onset. The negative correlation between MKRN3 and gonadotropins further supports MKRN3 as a major regulator of hypothalamic GnRH secretion during childhood. Undetectable or low MKRN3 levels were observed in a subgroup of patients with early onset of puberty.

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Crossref · 10.1210/jc.2014-4462

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  • MKRN3 is the most common genetic defect associated with central precocious puberty so far; families with central precocious puberty from several different ethnic groups harbour mutations in this gene.

    “MKRN3 is the most common genetic defect associated with central precocious puberty so far; families with central precocious puberty from several different ethnic groups harbour mutations in this gene.52,71–76”

    From Pubertal development and regulation (2016) · cites this paper as [72]

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Authors
Hagen, C. P., Sørensen, K., Mieritz, M. G., Johannsen, T. H., Almstrup, K., & Juul, A.
Affiliations
University of Copenhagen (DK)
Corresponding author
Hagen, Casper P.
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2015-05
Volume
100
Issue
5
Pages
1920-1926
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2114009937
Cited by
86
References
28
Citations by year
2026: 3 · 2025: 6 · 2024: 6 · 2023: 7 · 2022: 6 · 2021: 6 · 2020: 12 · 2019: 13 · 2018: 7 · 2017: 6 · 2016: 10 · 2015: 3
FWCI
9.89
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Keywords
MKRN3, puberty onset, serum biomarkers, GnRH secretion, gonadotropins, follicle-stimulating hormone, luteinizing hormone, age at menarche, prepubertal girls, breast development
MeSH terms
Adolescent, Child, Child, Preschool, Female, Follicle Stimulating Hormone, Genotype, Humans, Luteinizing Hormone, Longitudinal Studies, Prospective Studies, Puberty, Puberty, Precocious, Ribonucleoproteins, Ubiquitin-Protein Ligases, Healthy Volunteers

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