A new study from the\u00a0Institut de recherches cliniques de Montr\u00e9al\u00a0is helping clarify how vitamin K contributes to bone health, revealing a more detailed understanding of how the body maintains bone strength.<\/p>\n
Researchers found that vitamin K plays a key role in balancing the activity between two types of bone cells: osteoclasts, which break down old bone tissue, and osteoblasts, which build new bone. This balance is essential for maintaining healthy, strong bones.<\/p>\n
\u201cVitamin K is involved in the communication between these cells,\u201d said professor\u00a0Mathieu Ferron. \u201cIt affects proteins in osteoblasts that ultimately influence osteoclasts.\u201d<\/p>\n
Vitamin K, a nutrient obtained through diet, is best known for its role in blood clotting. Previous studies have suggested that deficiencies may increase fracture risk, particularly in higher-risk groups such as postmenopausal women, though the biological mechanism was not well understood.<\/p>\n
Some research has also shown that vitamin K supplements may reduce fracture risk without significantly increasing bone density \u2014 a finding that puzzled scientists.<\/p>\n
In laboratory experiments using genetically modified mice, the Montreal team discovered that altering a specific enzyme in bone-forming cells changed how these cells \u201ccommunicate\u201d with bone-resorbing cells. Additional tests showed that the protein influenced the number of osteoclasts produced, increasing bone breakdown when present.<\/p>\n
Excessive bone resorption is a key factor in osteoporosis, a condition in which bone loss outpaces bone formation.<\/p>\n
Researchers say the findings help explain how vitamin K affects bone cells and may one day lead to more targeted treatments for bone disease. The study was published in the journal\u00a0Bone Research.<\/p>\n
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