October 1985
Volume 26, Issue 10
Articles  |   October 1985
NMR analyses of the cold cataract. III. 13C acrylamide studies.
Investigative Ophthalmology & Visual Science October 1985, Vol.26, 1349-1353. doi:
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      S Lerman, J M Megaw, M N Moran; NMR analyses of the cold cataract. III. 13C acrylamide studies.. Invest. Ophthalmol. Vis. Sci. 1985;26(10):1349-1353.

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      © ARVO (1962-2015); The Authors (2016-present)

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13C-enriched acrylamide was employed to further delineate the action of this compound in preventing the cold cataract phenomenon when it is incorporated (in vitro) into young human and rabbit lenses. The extent of acrylamide incorporation, in the dark and with concurrent UV exposure, was monitored by 13C NMR spectroscopy. These studies provide further evidence that UV exposure causes permanent acrylamide photobinding within the lens. In such lenses, the gamma crystallin fraction of the soluble lens proteins is affected to the greatest extent. It appears to become aggregated and/or combined with the alpha and beta fractions resulting in an apparent loss of most of the gamma monomers. There is also an age-related effect with respect to the amount of acrylamide that can be incorporated into the lens. The decrease in acrylamide incorporation with age directly parallels the age-related decline in gamma crystallin levels.


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