adrenarche


Also found in: Dictionary, Thesaurus, Wikipedia.

ad·ren·ar·che

(ad-ren-ar'kē), Avoid the mispronunciation ad'renarche.
1. Growth of axillary and pubic hair induced by hyperactivity of the suprarenal cortex in early puberty.
2. Physiologic change at puberty caused by adrenocortical secretion of androgenic hormones or their precursors.
[adren- + G. archē, beginning]

adrenarche

The (normal) prepubertal increase in adrenal gland secretion—e.g., of  androgens—which begins from age 6 to 8.

ad·ren·ar·che

(ad-ren-ahrkē)
Increase in the production of androgens by the cortex of the suprarenal gland that occurs at the age of 8-9 years old.
[adren- + G. archē, beginning]

adrenarche

The changes in the outer layer of the adrenal gland that occur at puberty, with the production of male sex hormones (androgens) in both sexes that bring about some of the external sexual characteristics and hte prompting of libido.

ad·ren·ar·che

(ad-ren-ahrkē) Avoid the mispronunciation ad'renarche.
1. Growth of axillary and pubic hair induced by hyperactivity of the suprarenal cortex in early puberty.
2. Physiologic change at puberty caused by adrenocortical secretion of androgenic hormones or their precursors.
[adren- + G. archē, beginning]
Mentioned in ?
References in periodicals archive ?
Patients may have spontaneous breast and pubic hair development, oligomenorrhea or secondary amenorrhea while complete forms have absent pubarche and adrenarche. Furthermore, patients with partial forms may be normokalemic and normotensive (15).
Moreover, DHEA and DHEA sulfate (DHEAS) define adrenarche. Our results show that starting from 6 years of age, the level of DHEA increased with age, which is likely to be related to the adrenal morphology and alterations of steroidogenic enzyme expression.
Lazar, "Interrelationship of extent of precocious adrenarche in appropriate for gestational age girls with clinical outcome," The Journal of Pediatrics, vol.
(14) In a 7 year-old girl with CMT1A due to the duplication 17p10-p12 dysmorphic facial features, dislocation of hips, talipes, developmental delay, premature adrenarche, and deep palmar creases supplemented the phenotype.
The classical form presents in infancy, and the nonclassical form presents later in childhood, leading to growth acceleration, premature adrenarche, or menstrual abnormalities.
Another recent study by Ellis also merits special attention as it reveals that family processes predict adrenarche (Ellis & Essex, 2007), a first stage of pubertal development involving the maturation of the adrenal gland which carries with it no changes in secondary sex characteristics but coincides with the emergence of sexual orientation (Herdt & McClintock, 2000).
Prepubertal girls with premature adrenarche have an increased prevalence of childhood metabolic syndrome, which may be due mainly to their overweight and hyperinsulinism, according to a study.
It has been clear for many years that DHEA, although a weak androgen, is present in the greatest quantity in the circulation and is secreted during adrenarche, prior to menarche, beginning at ages 8 to 10.
Adrenarche. Endocrinology Metabolism Clinics North America, 20, 71-83.
Between the ages of 5 and 9, adrenarche occurs, resulting in increased secretion of many adrenal steroids (cortisol, androstenedione, dehydroepiandosterone).