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Related Concept Videos

The Pituitary Gland01:17

The Pituitary Gland

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The pituitary is a small endocrine organ in the sphenoid bone under the hypothalamus. Primarily, the pituitary in adults has two distinct anatomical and functional regions— the anterior and posterior lobes. During human fetal development, a third pituitary gland region called the pars intermedia atrophies and disappears. However, some of its cells migrate and exist adjacent to the anterior pituitary in adults.
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Major Hormones and Their Functions01:27

Major Hormones and Their Functions

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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...
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Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

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The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
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Hormones of the Pituitary Gland01:27

Hormones of the Pituitary Gland

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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...
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Hypoglycemia and Glucagon01:15

Hypoglycemia and Glucagon

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Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
1.3K
Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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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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Updated: Apr 2, 2026

Development of Organoids from Mouse Pituitary as In Vitro Model to Explore Pituitary Stem Cell Biology
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Development of Organoids from Mouse Pituitary as In Vitro Model to Explore Pituitary Stem Cell Biology

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Neonatal Hypopituitarism.

Allie N Dayno1, Julia Crowley1,2, Vaneeta Bamba1,2

  • 1Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.

Neoreviews
|March 31, 2026
PubMed
Summary
This summary is machine-generated.

Neonatal hypopituitarism involves multiple pituitary hormone deficiencies with diverse symptoms. Early diagnosis and treatment are crucial for improving outcomes in affected infants.

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Area of Science:

  • Pediatric Endocrinology
  • Neonatal Medicine
  • Genetics

Background:

  • Neonatal hypopituitarism is a group of conditions with one or more pituitary hormone deficiencies.
  • It presents with varied phenotypes, including clinical, hormonal, radiographic, and genetic findings.
  • Key symptoms include hypoglycemia, prolonged jaundice, microphallus, midline defects, and feeding difficulties.

Purpose of the Study:

  • To review the spectrum of phenotypes in neonatal hypopituitarism.
  • To discuss the role of genetic testing in diagnosis.
  • To outline diagnostic and management strategies for neonatal pituitary axis abnormalities.

Main Methods:

  • Review of existing literature on neonatal hypopituitarism.
  • Summary of clinical presentations and diagnostic approaches.
  • Discussion of management strategies for pituitary hormone deficiencies.

Main Results:

  • Neonatal hypopituitarism presents with a wide range of phenotypes.
  • Genetic factors play a role in some cases.
  • Comprehensive evaluation involves hormonal assessment and brain MRI.

Conclusions:

  • Prompt diagnosis and treatment are essential for optimal outcomes.
  • Pediatric endocrinologists are key in managing these complex cases.
  • Understanding the diagnostic and management nuances is critical for neonates with pituitary deficiencies.