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  • Title: Age-related changes in the activities of the amine metabolizing enzymes of rat eye.
    Author: Cao Danh H, Strolin Benedetti M, Mousset A, Pasquier-Béchet P.
    Journal: J Pharm Pharmacol; 1985 May; 37(5):357-61. PubMed ID: 2862249.
    Abstract:
    Eye MAO-A, MAO-B, semicarbazide-sensitive amine oxidase (SSAO) and aldehyde reductase (AR) activities were measured in young and old rats. When enzyme activity is expressed as nmol (mg protein)-1 min-1, a significant decrease (18-23%) of SSAO activity in the eye of old rats was found, whereas there was no significant difference in MAO-A and MAO-B activities. A significant increase of AR activity with D-xylose (67%), DL-glyceraldehyde (64%), D-glucuronate (43%) and D-glucose (21%) was found in the eye of old rats. These results suggest that changes in the activities of the amine metabolizing enzymes of rat eye with age might have consequences for their function in senescence; particularly, the increase of AR activity might be involved in cataract formation.
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