Enamel
√ Hard and white substance covering the teeth
√ The hardest and most highly mineralized
√ Protects the fragile underlying parts of the teeth
√ Covers the crown and supported by dentin
Component of enamel
√ 96% of enamel : mineral, water, organic material
√ contain two unique classes of proteins amelogenins and enamelins
√ The basic unit of enamel is called
사람의 뼈와 뼈사이에는 관절이라는 구조가 있어 양 뼈가 자유롭게 움직이도록 도와줍니다. 관절은 뼈와 뼈가 맞닿은 부분이며 뼈 끝은 연골로 되어 있으며, 관절낭으로 둘러 싸여 있습니다. 연골사이에 관절낭에는 활막액이 들어 있어 잘 미끄러지게 되어 있으며, 또 뼈가 어긋나지 않도록 관절낭의
implanted the transduced NSCs along with a rat glioma cell line intracerebrally into nude mice. A
therapeutic effect was observed, but it required a 1:2 ratio of NSCs to glioma cells. Another group of
investigators similarly implanted murine glioma cells mixed with murine neural stem cells transduced to
express interleukin-4 into syngeneic hosts, with 80% long-term survival compared with 4