Related Experiment Video
Updated: Mar 1, 2026

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders
Published on: June 8, 2014
Genes play an important role in bone aging
Gregory Livshits1, David Karasik1, Itshak Otremski2
1Research Unit, Human Population Biology, Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel.
Genetic factors significantly influence bone aging and bone mineral density (BMD), with heritability estimates around 60%. Understanding these genetic components is crucial for predicting age-related bone diseases.
Area of Science:
- Human Biology
- Genetics
- Bone Aging
Background:
- Osteoarthritis and osteoporosis are common age-related bone diseases.
- The genetic basis of peak bone mass, bone loss, formation, and resorption is not well understood.
- Osteometric measurements (OSM), bone mineral density (BMD), and osteographic scores (OSS) are key measures of bone aging.
Purpose of the Study:
- To review modern studies on the genetic aspects of bone formation and aging.
- To explore the genetic influences on bone mineral density (BMD) and related bone aging processes.
Main Methods:
- Review of modern scientific literature on bone aging genetics.
- Analysis of family studies focusing on BMD heritability.
- Segregation analysis to identify major genetic loci affecting BMD.
Main Results:
- Family studies indicate strong familial and genetic effects on bone mass.
- Heritability estimates for BMD consistently account for approximately 60% of total variation.
- Genetic factors appear to influence both weight-bearing and non-weight-bearing bones.
Conclusions:
- Genetic factors play a substantial role in bone aging and BMD.
- Further research using segregation, linkage, and molecular biology is needed to clarify genetic mechanisms.
- Understanding bone turnover biochemistry is essential for a complete picture of bone formation and aging.
Related Concept Videos
Bone Disorders
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...
Hormones and Bone Tissue
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...
Role of Vitamins in Maintaining Bone Health
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...
The Effect of Aging on Tissues
Bone Remodeling
Osteoclasts in Bone Remodeling

