Age related changes in the free amino acid pool of rat lens

J. S. Zigler, M. E. Mauney, J. B. Sidbury

Research output: Chapter in Book/Report/Conference proceedingChapter


Quite disparate values have been reported by various investigators for the concentrations of free amino acids in the normal rat lens. To test the possibility that the apparent discrepancies could result from age- or strain-related effects, assays were made on both weanling and mature specimens from two common laboratory strains of rats. Although the levels of free amino acids in the plasma were very similar in all groups, the total free amino acid concentration in the lenses of weanling rats was almost double that found in mature rats. Individual amino acids showed quite varied patterns of age-related changes in concentration. Although there is limited evidence that strain-related differences in the amino acid pool may also exist, it was concluded that age-related alterations probably account for most of the variation present in the previously reported values.

Original languageEnglish (US)
Title of host publicationINVEST.OPHTHAL.VISUAL SCI.
Number of pages5
Publication statusPublished - 1977
Externally publishedYes


ASJC Scopus subject areas

  • Medicine(all)

Cite this

Zigler, J. S., Mauney, M. E., & Sidbury, J. B. (1977). Age related changes in the free amino acid pool of rat lens. In INVEST.OPHTHAL.VISUAL SCI. (2 ed., Vol. 16, pp. 171-175)