Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-7-28
pubmed:abstractText
For the first time, an attempt has been made to study the vitreous humor in situ by circular dichroism (CD). The vitreous, an avascular and acellular gel-like tissue, is optically transparent and homogeneous, and, thus, light scattering is minimal. The macromolecular components of this tissue, hyaluronate (HA), collagen and noncollagenous protein (NC-P), appear to exist in the matrix in a nonoriented fashion. As a result, no linear dichroism was observed. A typical CD of the vitreous shows a minimum at 206 nm with a shoulder at 220 nm and one small positive peak at approximately 252 nm. Gaussian analysis resolves this spectrum into four component bands. CD analysis of individual components reveals that NC-P makes the major contribution to the dichroic strength of the vitreous; contributions of HA and collagen, on the other hand, are small. The positive peak arises largely from ascorbic acid in the vitreous. CD measurement of the intact vitreous appears to be a useful technique for assessing the structure and changes of the constituent molecules in the normal and diseased vitreous.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0165-022X
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-56
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Monitoring in situ circular dichroism of the intact vitreous: a new approach.
pubmed:affiliation
Eye Research Institute of Retina Foundation, Boston, MA 02114.
pubmed:publicationType
Journal Article