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1 .This is Scientific American 60-Second Health. I'm Dina Fine Maron. Got a minute?
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2 .New news is goo news, when it's inside our bones, anyway.
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3 .Because a combination of imaging techniques and modeling has revealed that our bones are filled with a natural chemical goo that's key to the bones' function as support structures.
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4 .The finding is in the Proceedings of the National Academy of Sciences.
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5 .And it could inform research into the prevention and treatment of osteoporosis.
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6 .Bone actually largely consists of tiny crystals of calcium phosphate,
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7 .and the goo is in fact a combination of the compound citrate and water.
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8 .The viscous mixture surrounds the crystals, letting them slide and slip past each other.
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9 .The resulting flexibility lets bones bend but not break under normal pressure.
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10 .Most of that flexibility had been attributed to the presence of the protein collagen,
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11 .but the citrate goo appears to play a big role too.
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12 .Unfortunately, as people age, the goo may begin to seep out.
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13 .The remaining mineral crystals then can fuse together, according to lead researcher Melinda Duer at the University of Cambridge, and the bones become brittle.
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14 .Keeping the goo in its proper place between the mineral crystals might thus help ward off osteoporosis.
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15 .Which be a bona fide breakthrough.
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16 .Thanks for the minute, for Scientific American 60-Second Health. I'm Dina Fine Maron.
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