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Related Concept Videos

Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Regulation of Hormone Secretion01:19

Regulation of Hormone Secretion

Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
Humoral stimuli,...
Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...

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Related Experiment Video

Updated: Jun 10, 2026

Osteoclast Derivation from Mouse Bone Marrow
06:17

Osteoclast Derivation from Mouse Bone Marrow

Published on: November 6, 2014

Hypothalamic regulation of bone.

Frank Driessler1, Paul A Baldock

  • 1Neuroscience Program, Garvan Institute of Medical Research, St Vincent's Hospital, Sydney 2010, New South Wales, Australia.

Journal of Molecular Endocrinology
|July 28, 2010
PubMed
Summary
This summary is machine-generated.

The central nervous system regulates bone mass through complex neural pathways. Hormones like leptin and neurotransmitters interact to control bone formation and resorption, impacting skeletal health.

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Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics
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Last Updated: Jun 10, 2026

Osteoclast Derivation from Mouse Bone Marrow
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Published on: November 6, 2014

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Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics

Published on: March 1, 2022

Area of Science:

  • * Skeletal Physiology
  • * Neuroendocrinology
  • * Bone Biology

Background:

  • * Bone remodeling involves osteoblasts and osteoclasts for skeletal adaptation.
  • * Emerging research reveals intricate neural regulation of bone mass.
  • * Central pathways significantly influence skeletal homeostasis.

Purpose of the Study:

  • * To review key central neural pathways regulating bone mass.
  • * To explore the complexity of neuro-skeletal interactions.
  • * To highlight recent advancements in understanding neural control of bone.

Main Methods:

  • * Literature review of studies on neural regulation of bone.
  • * Analysis of pathways involving leptin, neuromedin U, serotonin, neuropeptide Y, and cannabinoids.
  • * Examination of central and bone cell receptor interactions.

Main Results:

  • * Leptin initiates a sympathetic pathway influencing osteoblasts.
  • * Complex interactions of neuromedin U, serotonin, and other neuropeptides modulate bone remodeling.
  • * Central cannabinoid receptors (CB1) and bone cell receptors (CB2) impact osteoclast activity.
  • * Neuropeptide Y coordinates bone mass with body weight via hypothalamic Y2 receptors.

Conclusions:

  • * Central neural pathways play a critical role in bone remodeling.
  • * The neuro-skeletal axis is complex, involving multiple interacting systems.
  • * This emergent field offers new insights into skeletal physiology and systemic interactions.