905,369,155 visitors served.
905,369,155 visitors served. |
|
 Dictionary/ thesaurus |  Medical dictionary |  Legal dictionary |  Financial dictionary |  Acronyms |  Idioms |  Encyclopedia |  Wikipedia encyclopedia | ? |
collagen |
Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia | 0.05 sec. |
collagenProtein that is the main constituent of connective tissue. Collagen is present in skin, cartilage, tendons, and ligaments. Bones are made up of collagen, with the mineral calcium phosphate providing increased rigidity. Collagen is made by fibroblast cells that are found in connective tissue. The collagen molecule consists of three protein chains, each about 1,000 amino acids in length, that are entwined in a triple helix. There are 15 known types of collagen that can be divided into fibrillar and nonfibrillar. Fibrillar collagens are found in cartilage, tendons, skin, and bones and the fibrillar structure gives these great strength. Nonfibrillar collagens are found separating the basement membranes, the epithelial layers that line tube and in the cornea. They form networks and sheets. Collagen therapyCollagen is used cosmetically to enhance lips and smooth out wrinkles. The collagen, which is extracted mainly from cow hides, is injected into the skin. For wrinkle treatment it is injected into the dermis over six sessions, which have to be repeated after several months as the implants degrade.
|
|
? Mentioned in | ? References in periodicals archive | |
|---|---|---|
a synthetic glucocorticoid used primarily as an antiinflammatory in various conditions, including collagen diseases and allergic states; it is the basis of a screening test in the diagnosis of Cushing's syndrome; used also as the acetate or sodium phosphate salt. a synthetic glucocorticoid used primarily as an antiinflammatory in various conditions, including collagen diseases and allergic states; it is the basis of a screening test in the diagnosis of Cushing's syndrome; used also as the acetate or sodium phosphate salt. a synthetic glucocorticoid used primarily as an antiinflammatory in various conditions, including collagen diseases and allergic states; it is the basis of a screening test in the diagnosis of Cushing's syndrome; used also as the acetate or sodium phosphate salt. |
 |
| Free Tools: |
For surfers:
Browser extension |
Word of the Day |
Help
For webmasters: Free content NEW! | Linking | Lookup box | Double-click lookup | Partner with us |
|
|---|
Disclaimer |
Privacy policy |
Feedback | Copyright © 2008 Farlex, Inc.
Printer friendly
Cite / link
Email
Feedback
Collagen diseases
