Senile cataracts and oxidative stress

Senile cataracts and the HLA system.

Supplementing glucose metabolism in human senile cataracts.

Assay of the activities of hexokinase, phosphofructokinase, and pyruvate kinase showed that the first two declined in aging human lens cortex and all three enzymes retained constant activities in the epithelium throughout life. Moreover, both clear and cataractous aging lenses contained the same enzyme activities. ATP contents in cataracts, however, were lower than in clear lenses; in fact, aft...

Transglutaminase activity in normal human lenses and in senile cataracts.

Transglutaminase, the main function of which is to crosslink peptide chains through isopeptide bonds, has been detected in the lens of laboratory animals and in human cataracts and has been implicated in cataractogenesis. The transglutaminase activity has been estimated by measuring the amount of 3H-putrescine incorporation into dimethyl-casein of clear noncataractous human lenses and by compar...

Urinary 6-sulphatoxymelatonin levels in patients with senile cataracts

BACKGROUND The antioxidant melatonin effectively scavenges highly toxic hydroxyl radicals. Decreases in circulating melatonin levels have been reported in patients with diseases that become more serious with advancing age. The purpose of the present study was to explore the relationship between circulatory melatonin level and the extent of senile cataracts. To this end, we assessed the urinary ...

Nrf2 as a target for prevention of age‐related and diabetic cataracts by against oxidative stress

Cataract is one of the most important causes of blindness worldwide, with age-related cataract being the most common one. Agents preventing cataract formation are urgently required. Substantial evidences point out aggravated oxidative stress as a vital factor for cataract formation. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/Kelch-like erythroid-cell-derived protein with CNC homology (E...