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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.
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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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[Gut microbiota and osteoporosis].

Yong-Quan Huang1, Tao Jiang, Hai-Tao Su

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The aging population faces rising osteoporosis and fracture risks. Gut microbiota, crucial for metabolism and immunity, are increasingly linked to osteoporosis development and progression.

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Area of Science:

  • Gerontology
  • Microbiology
  • Immunology

Background:

  • China's aging population experiences a surge in osteoporosis and fractures, impacting elderly quality of life.
  • Gut microbiota maintain a symbiotic relationship with hosts, influencing metabolism and immune responses.
  • Emerging research highlights the gut microbiome's role beyond digestion, affecting immune-related diseases like osteoporosis.

Purpose of the Study:

  • To review current research on the relationship between gut microbiota, the immune system, and osteoporosis.
  • To identify key findings and emerging trends in this interdisciplinary field.

Main Methods:

  • Literature review of recent studies.
  • Synthesis of research on gut microbiota composition and function.
  • Analysis of immune system pathways involved in osteoporosis.

Main Results:

  • Gut microbiota composition is altered in osteoporosis patients.
  • Microbial metabolites and immune signaling pathways mediate the gut-bone axis.
  • Dysbiosis contributes to inflammation and bone loss.

Conclusions:

  • Gut microbiota significantly influence osteoporosis pathogenesis through immune modulation.
  • Targeting the gut microbiome presents a potential therapeutic strategy for osteoporosis.
  • Further research is needed to elucidate specific mechanisms and develop interventions.