Bone Marrow Adipose Tissue Quantification by Imaging.

Area of Science:

• Bone biology and metabolism
• Adipose tissue research
• Hematopoiesis and aging

Background:

• Marrow adipose tissue (MAT) is increasingly recognized for its active endocrine and paracrine roles.
• Historically viewed as passive fat storage, MAT actively influences bone and hematopoietic marrow.
• MAT dysfunction contributes to lipotoxicity and inflammation, impacting overall health.

Purpose of the Study:

• To review the evolving understanding of marrow adipose tissue (MAT) significance.
• To highlight MAT's role in bone fragility and anemia development.
• To discuss current and needed advancements in MAT measurement techniques.

Main Methods:

• Review of current scientific literature on marrow adipose tissue.
• Analysis of evidence linking MAT to bone and hematopoietic marrow health.
• Evaluation of existing and emerging MAT measurement technologies.

Main Results:

• MAT volume and composition changes correlate with bone and marrow deterioration.
• MAT contributes to age-associated decline in bone and red marrow structure/function.
• Lipotoxicity and inflammaging are key mechanisms through which MAT impacts bone.

Conclusions:

• MAT is a critical factor in age-related bone and marrow decline.
• Further research into MAT is essential for predicting bone fragility and anemia.
• Development of advanced, quantitative MAT measurement tools is urgently needed.