Publications by authors named "Michael A Sonnenfelt"

Article Synopsis
  • Tendons and ligaments, attaching to bones, are crucial for joint movement and stability, with their attachments influenced by mechanical forces and growth signals.
  • Deleting both Fgfr1 and Fgfr2 genes in tendon progenitors resulted in larger bone protrusions and shorter long bones, indicating that these receptors play a role in bone development.
  • The study reveals that FGFR signaling is important for the growth and upkeep of tendon/ligament attachments, affecting the size and shape of bone features.
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Western painted turtles () tolerate anoxic submergence longer than any other tetrapod, surviving more than 170 days at 3°C. This ability is due, in part, to the shell and skeleton simultaneously releasing calcium and magnesium carbonates, and sequestering lactate and H to prevent lethal decreases in body fluid pH. We evaluated the effects of anoxic submergence at 3°C on various material properties of painted turtle bone after 60, 130 and 167-170 days, and compared them with those of normoxic turtles held at the same temperature for the same time periods.

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