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Related Concept Videos

Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
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Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
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The Parathyroid Glands00:59

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The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
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Neurotransmitters are essential chemical messengers within the nervous system, facilitating the communication between neurons. These chemical messengers, varying in function and effect, are critical for sustaining various aspects of neurological health and emotional well-being.
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Related Experiment Video

Updated: May 12, 2025

Osteoclast Derivation from Mouse Bone Marrow
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Osteocalcin and GPR158: linking bone and brain function.

Jingjing Li1, Shujie Lou2, Xuepeng Bian3

  • 1Physical Education College, Shanghai University, Shanghai, China.

Frontiers in Cell and Developmental Biology
|May 8, 2025
PubMed
Summary

Osteocalcin (OCN) influences the central nervous system (CNS) via GPR158, a receptor affecting neural plasticity and cognitive function. This pathway is linked to neurodegenerative diseases, offering potential therapeutic targets.

Keywords:
GPR158cellular activitymetabolismneurodegenerative diseasesosteocalcinsynaptic plasticity

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Last Updated: May 12, 2025

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Area of Science:

  • Neuroendocrinology
  • Neurobiology
  • Molecular Medicine

Background:

  • Osteocalcin (OCN), secreted by osteoblasts, acts as an endocrine factor regulating the central nervous system (CNS) through the bone-brain axis.
  • G protein-coupled receptor 158 (GPR158) is a key OCN receptor, influencing neural cell proliferation, differentiation, survival, and cognitive function.
  • GPR158's roles extend to cellular energy metabolism and interactions with proteins like RGS7, impacting neural activity.

Purpose of the Study:

  • To systematically summarize the role of the OCN/GPR158 signaling pathway in CNS regulation.
  • To explore the association between OCN/GPR158 and neurodegenerative diseases (NDs).
  • To deepen the understanding of OCN's impact on brain function and identify potential therapeutic strategies.

Main Methods:

  • Literature review and systematic summary of existing research on OCN and GPR158.
  • Analysis of OCN/GPR158 interactions and their effects on neural cells and cognitive function.
  • Investigation of GPR158's involvement in cellular metabolism and protein interactions.

Main Results:

  • OCN, via GPR158, modulates neural plasticity, cognitive function, and energy metabolism.
  • GPR158 exhibits complex, region- and cell type-specific effects in pathological conditions like tumor development and mood disorders.
  • The OCN/GPR158 pathway is increasingly implicated in neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD).

Conclusions:

  • The OCN/GPR158 pathway is a significant regulator of CNS function and cognition.
  • Dysregulation of OCN/GPR158 signaling may contribute to the pathogenesis of neurodegenerative diseases.
  • Further research into the OCN/GPR158 pathway holds promise for developing novel therapeutic targets for CNS disorders.