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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Anatomy of the Adrenal Glands01:17

Anatomy of the Adrenal Glands

The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
Hormones of the Adrenal Glands01:31

Hormones of the Adrenal Glands

Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
Cushing Syndrome II: Pathophysiology01:19

Cushing Syndrome II: Pathophysiology

Cortisol production is normally governed by the hypothalamic–pituitary–adrenal (HPA) axis, which maintains hormonal balance through tightly regulated feedback mechanisms. Disruption of this regulatory system is central to the development of Cushing syndrome, whether the excess cortisol originates from external medications or internal pathology. Persistent cortisol elevation alters metabolism, immune function, and endocrine signaling, producing the characteristic clinical features of the...
Teratogenicity01:07

Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
Smooth Endoplasmic Reticulum01:21

Smooth Endoplasmic Reticulum

Smooth endoplasmic reticulum or smooth ER is a sub-organelle with specialized functions in animal cells and plant cells. It is often associated with the tubule morphology of the endoplasmic reticulum.
The ER provides optimal conditions for synthesizing steroid hormones and lipids, such as phospholipids and triglycerides. Traditionally, lipid metabolism was considered to be a smooth ER function. However, there is no direct evidence to prove that rough ER is completely excluded from lipid...

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Establishment of Zone-Enriched Primary Cultures from the Mouse Adrenal Cortex
07:43

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Published on: May 8, 2026

Adrenal gland development and defects.

Petra Kempná1, Christa E Flück

  • 1Pediatric Endocrinology and Diabetology, University Children's Hospital, University of Berne, Freiburgstrasse 15, 3010 Bern, Switzerland.

Best Practice & Research. Clinical Endocrinology & Metabolism
|February 19, 2008
PubMed
Summary
This summary is machine-generated.

Human adrenal development involves complex gene networks. Key factors like GLI3, SF1, and DAX1 are crucial, with many other genes identified, though their roles require further study.

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Area of Science:

  • Endocrinology
  • Developmental Biology
  • Genetics

Background:

  • Human adrenal development is regulated by a complex network of genes.
  • Gene mutations causing adrenal insufficiency highlight key factors like GLI3, SF1, and DAX1.
  • Adrenal differentiation is influenced by adrenocorticotropic hormone (ACTH) signaling pathways.

Purpose of the Study:

  • To elucidate the intricate genetic network governing human adrenal development.
  • To identify and characterize genes involved in adrenal formation and differentiation.
  • To understand the discrepancies in gene function between human and rodent adrenal development.

Main Methods:

  • Analysis of human patients with adrenal insufficiency due to specific gene mutations.
  • Review of studies involving knockout mice models for adrenal development factors.
  • Tissue profiling of fetal and adult human adrenal glands to identify involved genes.

Main Results:

  • Established the critical roles of transcription factors GLI3, SF1, and DAX1 in early adrenal formation.
  • Identified numerous genes (e.g., POMC, TPIT, MC2R) essential for adrenal differentiation, whose mutations cause hypoplasia.
  • Highlighted species-specific differences in gene function during adrenal development (e.g., WT1, WNT4).
  • Tissue profiling identified 69 genes implicated in adrenal development, including those for steroidogenesis, transcription, signaling, cell cycle, and angiogenesis.

Conclusions:

  • Human adrenal development is a complex process involving a wide array of genes.
  • While some factors are conserved, species-specific differences exist in adrenal development pathways.
  • Further research is needed to elucidate the precise functions of the majority of identified genes in adrenal development.