Abstract
In aqueous humor from rabbits with uveitis or after anterior chamber paracentesis, the levels of lysophosphatidyl choline (LPC) were 10.2mug/ml and 14.7mug/ml, respectively. These LPC levels induce early cataractous changes in the rabbit lens in culture. Analysis of the fatty acid composition of LPC showed that saturated fatty acids were more predominant in secondary aqueous humor than in primary aqueous humor. In vitro, natural LPC induced more pronounced gains in sodium ions and water by the lens than similar concentrations of synthetic L-alpha-lysopalmitoyl phosphatidyl choline. In contrast to prostaglandin E, the levels of LPC in aqueous humor of rabbits with uveitis are cataractogenic. Thus, LPC or its precursors, rather than prostaglandins, are involved in the production of cataracts in uveitis.
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