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DNA fragmentation in lens fibre cell nuclei undergoing programmed degeneration was identified by terminal deoxynucleotidyl transferase (TdT)-mediated biotin-dUTP nick end labelling (TUNEL). Lens epithelial cells in culture were induced to differentiate into lens fibre-like clumps of cells (lentoids) by insulin and it was shown that the TUNEL method was also an effective means of labelling degenerating...
Keratocytes produce the extensive stromal matrix of the cornea during the late embryonic and neonatal time periods. We propose to test the hypothesis that their biosynthetic activity declines during this process. Keratocytes were isolated from corneas of 6–8-week-old rabbits and corneas of 1–2-year-old cows and their ability to proliferate and synthesize collagen in serum-free media was determined...
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