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Related Concept Videos

The Pineal Gland01:02

The Pineal Gland

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...

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Methodology for Biomimetic Chemical Neuromodulation of Rat Retinas with the Neurotransmitter Glutamate In Vitro
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EFFECT OF FEEDING THE PINEAL BODY UPON THE DEVELOPMENT OF THE ALBINO RAT.

W R Sisson1, J M Finney

  • 1Department of Pediatrics of the Johns Hopkins University, Baltimore.

The Journal of Experimental Medicine
|October 30, 2009
PubMed
Summary

Feeding desiccated calf pineal body to young rats did not impact their early development. Microscopic examination revealed no significant differences between pineal-fed and control groups, indicating no observable effects on growth or endocrine organs.

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Area of Science:

  • Endocrinology
  • Developmental Biology
  • Animal Science

Background:

  • The pineal body, a key endocrine gland, influences various physiological processes.
  • Research into the pineal body's effects on mammalian development is ongoing.
  • Understanding potential impacts of pineal gland extracts is crucial for comparative physiology.

Purpose of the Study:

  • To investigate the effects of feeding desiccated calf pineal body to young albino rats.
  • To assess the impact on developmental changes and endocrine organ morphology.
  • To determine if pineal gland consumption influences early growth and development.

Main Methods:

  • Young albino rats (3 weeks old) were fed desiccated calf pineal powder for 3-6 weeks.
  • Four litters were used, with 14 rats in the experimental group and 10 in the control group.
  • Developmental changes were observed, and endocrine glands and reproductive organs underwent microscopic examination.

Main Results:

  • Rats fed pineal powder in the first two litters showed slightly reduced growth compared to controls.
  • No developmental differences were observed between pineal-fed and control rats in the third and fourth litters.
  • Microscopic analysis revealed no significant differences in endocrine glands or reproductive organs between the groups.

Conclusions:

  • Feeding desiccated calf pineal body to young albino rats does not produce consistent effects on early development.
  • Observed minor growth differences were not replicated across all litters, suggesting variability or lack of a significant impact.
  • Pineal gland consumption, under these experimental conditions, did not alter the morphology of endocrine glands or reproductive organs.