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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...
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Cellular Adaptation III: Hyperplasia

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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...
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Related Experiment Video

Updated: May 21, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
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Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model

Published on: November 4, 2025

Overgrowth syndromes.

Orla M Neylon1, George A Werther, Matthew A Sabin

  • 1Murdoch Childrens Research Institute, Royal Children's Hospital and University of Melbourne, Parkville, Victoria, Australia.

Current Opinion in Pediatrics
|June 19, 2012
PubMed
Summary
This summary is machine-generated.

Genetic factors significantly influence human growth, leading to various overgrowth syndromes. Recent research clarifies the genetic basis of conditions like Weaver, Perlman, and Proteus syndromes, aiding diagnosis and classification.

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Area of Science:

  • Genetics and Molecular Biology
  • Human Physiology
  • Developmental Biology

Background:

  • Human growth is regulated by complex interactions between genetics, physiology, and environment.
  • Overgrowth disorders stem from disruptions in these intricate growth pathways.
  • Advances in genetic research are crucial for understanding the molecular underpinnings of overgrowth conditions.

Purpose of the Study:

  • To review the physiological and genetic factors regulating human growth.
  • To discuss common overgrowth syndromes and their current genetic understanding.
  • To highlight recent genetic discoveries in specific overgrowth conditions.

Main Methods:

  • Literature review of physiological growth regulators.
  • Analysis of genetic data for overgrowth syndromes.
  • Focus on recently identified genetic associations.

Main Results:

  • Overview of growth-regulating factors provided.
  • Common overgrowth syndromes and their genetic basis are discussed.
  • Recent genetic findings for Weaver, Perlman, and Proteus syndromes are highlighted.

Conclusions:

  • Ongoing discoveries are refining the genetic basis of overgrowth syndromes.
  • A molecular classification system for overgrowth is becoming feasible.
  • Overgrowth disorders present diagnostic and therapeutic challenges due to their wide spectrum.