Extent and properties of nonbulk “bound” water in crystalline lens cells

I. L. Cameron, E. Contreras, G. D. Fullerton, M. Kellermayer, A. Ludány, A. Miseta

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Crystalline lenses provided good material to study and measure the properties of cellular water. Different methods were used to establish the extent and properties of nonbulk water in mammalian lenses. These methods include: NMR titration analysis, a test of the osmotic properties, a test of dye exclusion In lenses with intact cell membranes and in lenses with disrupted cell membranes, and the water‐holding capacity of lenses subjected to 40,000 × g for 1 hour with intact cell membranes and in lenses with disrupted cell membranes. The data from these methods, as well as other data from the literature, lead to the conclusion that most, if not all, of the water in lens cells (up to 2.2 g water/g dry mass) has motional and osmotic properties that distinguish it from bulk water. These findings call into question the common and convenient assumption that all but a small proportion of cellular water is like that in dilute solution.

Original languageEnglish (US)
Pages (from-to)125-132
Number of pages8
JournalJournal of Cellular Physiology
Volume137
Issue number1
DOIs
StatePublished - Oct 1988
Externally publishedYes

ASJC Scopus subject areas

  • Physiology
  • Clinical Biochemistry
  • Cell Biology

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