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Related Experiment Videos

[Ghrelin--a hormone with multiple functions].

Erika Hubina1, Miklós Góth, Márta Korbonits

  • 1Országos Gyógyintézeti Központ, Belgyógyászati Osztály, Endokrinológiai Szakprofil, Budapest.

Orvosi Hetilap
|August 19, 2005
PubMed
Summary

Ghrelin, a hormone discovered in 1999, regulates growth hormone, appetite, and metabolism. While its functions are widely studied, its local tissue effects and role in cell metabolism require further investigation.

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Area of Science:

  • Endocrinology
  • Molecular Biology

Context:

  • Ghrelin, a growth hormone secretagogue, was discovered in 1999.
  • It is synthesized in the stomach and found in various tissues, including the hypothalamus, pituitary, and pancreas.
  • Ghrelin plays a role in regulating appetite, metabolism, and hormone secretion.

Purpose:

  • To provide a comprehensive overview of ghrelin's known functions and distribution.
  • To highlight the similarities between ghrelin and motilin.
  • To identify unanswered questions regarding ghrelin's local effects and cellular metabolism roles.

Summary:

  • Ghrelin stimulates growth hormone, corticotropic hormone, and prolactin secretion.
  • It influences appetite, carbohydrate and lipid metabolism, and potentially gastric acid secretion, motility, heart function, immune functions, and cell proliferation.
  • The ghrelin receptor is a G protein-coupled receptor found in the central nervous system and various peripheral tissues.

Impact:

  • Ghrelin levels are influenced by nutritional status and body mass index.
  • Understanding ghrelin's multifaceted roles is crucial for metabolic and endocrine research.
  • Further research is needed to elucidate the effects of locally produced ghrelin and its role in cell metabolism.

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