Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Menopause01:28

Menopause

Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
Bone Disorders01:29

Bone Disorders

Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
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.
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...
Hormonal Regulation of the Menstrual Cycle01:22

Hormonal Regulation of the Menstrual Cycle

The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH release.
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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[The relationship between chemerin, bone metabolism, the RANKL/RANK/OPG system, and bone mineral density in girls with anorexia nervosa].

Endokrynologia Polska·2022
Same author

New Variants of the Cytochrome P450 2R1 (<i>CYP2R1</i>) Gene in Individuals with Severe Vitamin D-Activating Enzyme 25(OH)D Deficiency.

Biomolecules·2021
Same author

Endokrynologia Polska·2021
Same author

Selected <i>E2F2</i> Polymorphisms in Oral and Oropharyngeal Squamous Cell Carcinoma.

BioMed research international·2021
Same author

miREIA - an immunoassay method in assessment of microRNA levels in tumor tissue-pilot study. The impact of miR-93-5p, miR-142-5p and IFNγ on PD-L1 level in colorectal cancer.

Acta biochimica Polonica·2021
Same author

<i>VDR</i> Gene Polymorphisms in Healthy Individuals with Family History of Premature Coronary Artery Disease.

Disease markers·2021

Related Experiment Video

Updated: Jun 25, 2026

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
08:56

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

Published on: April 7, 2023

[Menopause, obesity, and bone status].

Zofia Ostrowska1

  • 1Zakład Biochemii Klinicznej w Zabrzu Slaskiego Uniwersytetu Medycznego w Katowicach, Poland.

Postepy Higieny I Medycyny Doswiadczalnej (Online)
|March 3, 2009
PubMed
Summary

Obesity may not increase osteoporosis risk; increased adipose tissue may protect bones. Hormones and cytokines influence bone density via the RANKL/RANK/OPG system.

Area of Science:

  • Endocrinology
  • Bone Biology
  • Metabolic Disorders

Context:

  • Emerging research challenges the traditional view of obesity as a risk factor for osteoporosis.
  • Increased adipose tissue mass is increasingly recognized for potential protective effects on bone health.

Purpose:

  • To explore the mechanisms by which adipose tissue may influence bone metabolism and density.
  • To investigate the role of various hormones and cytokines in mediating the bone-protective effects of adipose tissue.

Summary:

  • Recent studies suggest obesity does not elevate osteoporosis risk, with increased adipose tissue potentially offering protection.
  • This protective effect may stem from increased mechanical loading on bone, promoting anabolism.
  • Hormonal changes in postmenopausal women, including estrogens, androgens, and leptin, alongside the RANKL/RANK/OPG system, are implicated in bone regulation.

Related Experiment Videos

Last Updated: Jun 25, 2026

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
08:56

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats

Published on: April 7, 2023

Impact:

  • Findings suggest a re-evaluation of the relationship between body composition and bone health.
  • Identifies key hormonal and cellular pathways (RANKL/RANK/OPG) involved in adipose tissue's influence on bone metabolism.
  • Potential implications for novel therapeutic strategies targeting osteoporosis and metabolic bone diseases.