Related Experiment Video
Updated: Feb 24, 2026
06:38
Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
Published on: October 13, 2018
16.4K
Pubertal growth and growth hormone secretion
1Tufts University School of Medicine, Boston, Massachusetts.
Endocrinology and Metabolism Clinics of North America
|March 1, 1991
Summary
The pubertal growth spurt involves a significant increase in linear growth velocity. Sex steroids critically modulate growth hormone secretion, impacting this crucial developmental stage and potentially causing growth disorders.
Area of Science:
- Pediatric Endocrinology
- Developmental Biology
- Hormonal Regulation
Background:
- The pubertal growth spurt is a key aspect of development, characterized by rapid linear growth.
- The precise hormonal mechanisms driving this growth spurt remain incompletely understood.
- Existing research suggests a significant role for hormonal influences.
Purpose of the Study:
- To elucidate the hormonal events underlying the pubertal growth spurt.
- To investigate the interplay between sex steroids and growth hormone secretion during puberty.
- To understand the etiology of pubertal growth disorders.
Main Methods:
- Review of accumulated evidence on hormonal modulation of growth.
- Analysis of the role of sex steroids in growth hormone regulation.
- Examination of clinical growth disorders during puberty.
Main Results:
- Evidence indicates sex steroid hormones critically modulate growth hormone secretion.
- This modulation is a central feature of the pubertal growth spurt.
- Disruptions in growth hormone or sex steroid production are linked to growth abnormalities.
Conclusions:
- Sex steroid-induced modulation of growth hormone secretion is essential for the pubertal growth spurt.
- Understanding these hormonal interactions is key to addressing pubertal growth disorders.
- Further research into these endocrine pathways is warranted.
Related Concept Videos
01:27Signs of Puberty
1.7K
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)...
1.7K
01:27Major Hormones and Their Functions
2.2K
Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
2.2K
01:17Hormones and Bone Tissue
4.0K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
4.0K
01:26Testosterone: Functions and Regulation
2.5K
The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
2.5K
01:27Hormones of the Pituitary Gland
10.8K
The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
10.8K
01:19Regulation of Hormone Secretion
7.0K
Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
Humoral...
Humoral...
7.0K