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Related Concept Videos

The Pineal Gland01:02

The Pineal Gland

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The pineal gland, a diminutive endocrine structure named for its pinecone-shaped appearance, is situated atop the third ventricle within the diencephalon region of the forebrain. This gland, composed of secretory cells known as pinealocytes arranged in compact cords and clusters around dense particles of calcium salts, plays a pivotal role in hormonal regulation.
The primary secretion of the pineal gland is the hormone melatonin, derived from serotonin. The concentration of melatonin in the...
2.3K

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Three-dimensional Alginate-bead Culture of Human Pituitary Adenoma Cells
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Pineal Gland Culture.

Solange Castro Afeche1, Fernanda Gaspar do Amaral2, José Cipolla-Neto3

  • 1Laboratory of Pharmacology, Butantan Institute, Sao Paulo, SP, Brazil. solange.afeche@butantan.gov.br.

Methods in Molecular Biology (Clifton, N.J.)
|September 30, 2022
PubMed
Summary

This study details a method for culturing pineal glands to investigate melatonin synthesis regulation. The ex vivo model allows for controlled experiments on factors influencing this crucial hormone.

Keywords:
BGJb mediumCultureMelatoninNorepinephrinePineal gland

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Area of Science:

  • Neuroendocrinology
  • Chronobiology

Background:

  • The pineal gland secretes melatonin rhythmically, regulated by norepinephrine.
  • Norepinephrine activates adrenergic receptors to stimulate melatonin synthesis.
  • Ex vivo pineal gland cultures offer a model to study melatonin regulation.

Purpose of the Study:

  • To describe the methodology for culturing pineal glands for research.
  • To enable in vitro studies on factors affecting melatonin synthesis and secretion.
  • To investigate the roles of various agents and conditions on melatonin production.

Main Methods:

  • Culturing intact pineal glands ex vivo.
  • Stimulating melatonin synthesis using adrenergic agonists (α and β).
  • Applying various modulators, toxins, and physiological/pathophysiological conditions.

Main Results:

  • Established a reliable methodology for pineal gland culture.
  • Demonstrated feasibility of studying diverse factors influencing melatonin synthesis in vitro.
  • Collected data on angiotensin, insulin, glutamate, and other modulators' effects.

Conclusions:

  • Cultured pineal glands provide a valuable tool for understanding melatonin synthesis control.
  • This model facilitates research into neurochemical and pathological influences on circadian melatonin production.
  • The methodology supports broad investigations into pineal gland function.