Related Experiment Video
Updated: Jun 8, 2026

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
Published on: October 13, 2018
Determinants of menarche
Olga Karapanou1, Anastasios Papadimitriou
1Third Department of Pediatrics, University of Athens School of Medicine, Attikon University Hospital, Haidari, Athens 12462, Greece.
This review explores the neuroendocrinology of puberty and menarche, covering genetic and environmental factors influencing its timing. It also examines the health implications of early or late menarche for women.
Area of Science:
- Reproductive endocrinology
- Neuroendocrinology
- Human development
Background:
- Menarche, the first menstrual period, signifies reproductive capability in females.
- Pubertal onset is a complex neuroendocrine process influenced by multiple factors.
- Understanding menarcheal age is crucial for assessing female reproductive health.
Purpose of the Study:
- To review recent advancements in the neuroendocrinology of pubertal onset.
- To summarize current knowledge on genetic and environmental factors affecting menarcheal age.
- To discuss the health implications of early or late menarche.
Main Methods:
- Literature review of recent developments.
- Synthesis of current knowledge on pubertal neuroendocrinology.
- Analysis of factors influencing menarcheal timing.
Main Results:
- Pubertal onset is regulated by a complex interplay of genetic and environmental signals.
- Nutritional status, psychosocial stress, and endocrine disruptors are key environmental influences.
- Genetic factors contribute significantly to the variability in menarcheal age.
Conclusions:
- The neuroendocrine regulation of puberty is multifaceted.
- Environmental and genetic factors critically influence menarcheal age.
- Deviations in menarcheal timing may have long-term health consequences.
Related Concept Videos
Signs of Puberty
Hormonal Regulation of the Menstrual Cycle
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
The Y Chromosome Determines Maleness
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
Development of the Sexual Organs in the Embryo and Fetus
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the male...
Nature and Nurture
Menopause
