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Related Concept Videos

Signs of Puberty01:27

Signs of Puberty

Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
Psychosexual Stages of Personality: Genital01:23

Psychosexual Stages of Personality: Genital

The genital stage is the final phase of Sigmund Freud's theory of psychosexual development, beginning at puberty, around age 12. During this stage, sexual energy shifts from self-focused interests to external individuals, marking the development of mature adult sexuality. Freud saw this phase as a time of sexual reawakening, with desires directed toward others outside the family. A healthy transition into this stage, according to Freud, signifies the emergence of two key aspects of adult...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Proliferative Phase01:20

Proliferative Phase

The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
Sex-linked Disorders01:43

Sex-linked Disorders

Like autosomes, sex chromosomes contain a variety of genes necessary for normal body function. When a mutation in one of these genes results in biological deficits, the disorder is considered sex-linked.

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Related Experiment Video

Updated: Jun 24, 2026

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
06:38

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats

Published on: October 13, 2018

[Central precocious puberty].

Robert Krysiak1, Bogdan Marek, Bogusław Okopień

  • 1Klinika Chorób Wewnetrznych i Farmakologii Klinicznej Katedry Farmakologii, Slaski Uniwersytet Medyczny, Katowice. r.krysiak@poczta.onet.pl

Endokrynologia Polska
|April 7, 2009
PubMed
Summary

Central precocious puberty (CPP) is early puberty before age 8 (girls) or 9 (boys) due to premature hypothalamic activation. Treatment involves gonadotropin-releasing hormone agonists to manage early pubertal changes and optimize adult height.

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Last Updated: Jun 24, 2026

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
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Area of Science:

  • Pediatric Endocrinology
  • Neuroendocrinology
  • Reproductive Medicine

Context:

  • Central precocious puberty (CPP) involves premature activation of hypothalamic gonadotropin-releasing hormone (GnRH) neurons.
  • This condition leads to early pubertal development, accelerated growth, and advanced bone maturation.
  • Potential causes include idiopathic factors, hypothalamic hamartoma, CNS disorders, and prior treatments.

Purpose:

  • To review the current understanding of CPP's etiopathogenesis, clinical presentation, diagnosis, and management.
  • To highlight the importance of excluding organic causes during initial assessment.
  • To discuss the primary treatment modality for CPP.

Summary:

  • CPP is defined by early puberty onset (before 8 years in girls, 9 in boys) driven by premature GnRH neuron activation.
  • Diagnosis requires thorough history, clinical exam, hormone levels, bone age assessment, and imaging.
  • Gonadotropin-releasing hormone agonists are the standard treatment for CPP.

Impact:

  • Optimizing diagnostic strategies for timely identification of CPP.
  • Improving management protocols to mitigate adverse effects like reduced adult height.
  • Enhancing clinical understanding and patient outcomes for this endocrine disorder.