The wooded habitat of the Grey Treefrog is larger and extends farther North, while the Green Treefrogâs swamp and marsh habitat is concentrated in the South. In the area in which Gray and Green Treefrogs overlap, both habitats occur but in different places. However, natural selection does not always go to the optimum. It only goes to what works. For instance, rabbits are herbivores, which have hind gut fermentation (fermentation of food after passing through the stomach). They have a special organ called a caecum which helps them digest their food.
Years down the road, âultimately the only thing you can really do to change that situation is a total joint replacement,â said Dr. James Gladstone, an orthopedic surgeon at Mount Sinai Hospital. So Bassaragh opted for an innovative way to fix his knee: by regrowing cartilage from his own cells.
Cole and his co-researchers will assess the drug's safety as well as its ability to regenerate cartilage repair tissue and reduce pain in patients with localized cartilage loss in the knee. Treating cartilage damage can be problematic because the tissue does not contain blood vessels or nerves and therefore has a limited ability to re-grow. Various treatments for cartilage degeneration, such as drug therapy, arthroscopy and joint replacement, yield mixed results and are unable to regenerate damaged tissue. Finding a biological solution for cartilage regeneration in orthopedics is one of the fastest growing areas of research and development in our specialty, said Cole.