Membrane properties of dolichol in different age groups of mice. Academic Article uri icon

abstract

  • Dolichol content and the effects of dolichol in vitro on synaptic plasma membrane (SPM) structure of different age groups of C57BL/6NNIA mice were examined. SPM of aged mice had higher amounts of dolichol as compared to younger animals. Age differences also were observed in dolichol isoprenologue distribution. In older animals, dolichol isoprenologue chain length was shifted towards shorter chain length values. The structure of SPM was determined by differential polarized phase fluorometry of 1,6-diphenyl-1,3,5-hexatriene (DPH). The SPM of old mice were more rigid, as indicated by higher limiting anisotropy, than those of young mice. Dolichol administered in vitro to SPM fluidized the membranes. However, dolichol administered in vitro fluidized SPM of younger mice significantly more than SPM of aged mice. The functional role of increased dolichol content in aged individuals is not known. Dolichol may act to regulate membrane fluidity of aged animals.

published proceedings

  • Chem Phys Lipids

author list (cited authors)

  • Wood, W. G., Sun, G. Y., & Schroeder, F.

citation count

  • 15

complete list of authors

  • Wood, WG||Sun, GY||Schroeder, F

publication date

  • November 1989