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Related Concept Videos

Bone Disorders01:29

Bone Disorders

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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...
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Bone Remodeling01:40

Bone Remodeling

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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.
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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.
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...
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Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

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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...
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Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

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The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
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Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

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The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
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Related Experiment Video

Updated: May 14, 2025

Screening for Phytoestrogens using a Cell-based Estrogen Receptor β Reporter Assay
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Phytoestrogens in osteoporosis.

Mateusz Kaczmarski1, Mateusz Trubalski2, Paweł Kamiński2

  • 1STUDENT SCIENTIFIC ASSOCIATION OF THE LABORATORY OF LOCOMOTOR SYSTEMS RESEARCH, MEDICAL UNIVERSITY OF LUBLIN, LUBLIN, POLAND.

Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|April 12, 2025
PubMed
Summary

Phytoestrogens from plants like soy may aid osteoporosis prevention and menopausal symptom relief. However, their effects on bone density vary, requiring more research for personalized use.

Keywords:
phytoestrogensbonebone mineral densitybotanicalsmenopauseosteoporosis

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Area of Science:

  • Phytomedicine and Bone Health

Background:

  • Osteoporosis is a significant public health concern, particularly in postmenopausal women.
  • Phytoestrogens, plant-derived compounds with estrogen-like activity, are explored for bone health benefits.

Purpose of the Study:

  • To review the efficacy of various phytoestrogens in preventing and treating osteoporosis.
  • To analyze their impact on bone mineral density (BMD), bone turnover, and fracture risk.

Main Methods:

  • Systematic review of clinical trials on phytoestrogens from soy, red clover, Epimedium, hops, fennel, and prunes.
  • Analysis of studies examining effects on BMD, bone markers, and fracture incidence.

Main Results:

  • Phytoestrogens, especially from soy and red clover, show potential for improving bone health and reducing fracture risk.
  • Clinical trial results on BMD are inconsistent, with some showing benefits and others no significant difference compared to placebo.

Conclusions:

  • Phytoestrogens show promise as complementary osteoporosis therapies, potentially alleviating menopausal symptoms.
  • Further rigorous research is needed to confirm long-term efficacy, safety, and optimal personalized use, considering individual factors.