Biomaterial Database

Age-related differences in the human vitreoretinal interface. 1991

J Sebag

Doheny Eye Institute, University of Southern California, Los Angeles.

Age-related differences in vitreoretinal adhesion were investigated in 59 human eyes from donors aged from 33 weeks of gestation to 94 years with the use of dark-field and electron microscopy of whole vitreous. In all eyes from individuals aged 21 years or older, dissection of the retina off the vitreous resulted in cleavage between the vitreous cortex and the internal limiting lamina. However, in six (40%) of 15 eyes from individuals aged 20 years or younger, the internal limiting lamina remained adherent to the vitreous cortex in an area that encompassed the macula, temporal arcades, and peripapillary posterior pole. Ultrastructural studies revealed inner portions of Müller's cells that were attached to the posterior aspect of the internal limiting lamina. These results suggested that, in youth, there is adhesion between the vitreous cortex and internal limiting lamina that is stronger than Müller's cell itself and is topographically more extensive than previously thought.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007365	Intercellular Junctions	Direct contact of a cell with a neighboring cell. Most such junctions are too small to be resolved by light microscopy, but they can be visualized by conventional or freeze-fracture electron microscopy, both of which show that the interacting CELL MEMBRANE and often the underlying CYTOPLASM and the intervening EXTRACELLULAR SPACE are highly specialized in these regions. (From Alberts et al., Molecular Biology of the Cell, 2d ed, p792)	Cell Junctions,Cell Junction,Intercellular Junction,Junction, Cell,Junction, Intercellular,Junctions, Cell,Junctions, Intercellular
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D012160	Retina	The ten-layered nervous tissue membrane of the eye. It is continuous with the OPTIC NERVE and receives images of external objects and transmits visual impulses to the brain. Its outer surface is in contact with the CHOROID and the inner surface with the VITREOUS BODY. The outer-most layer is pigmented, whereas the inner nine layers are transparent.	Ora Serrata
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D005260	Female		Females
D005333	Fetus	The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN.	Fetal Structures,Fetal Tissue,Fetuses,Mummified Fetus,Retained Fetus,Fetal Structure,Fetal Tissues,Fetus, Mummified,Fetus, Retained,Structure, Fetal,Structures, Fetal,Tissue, Fetal,Tissues, Fetal