no statistical differences in the relative increases in the concentrations of malondialdehyde and lipofuscin-like pigments or in the degradation of polyunsaturated fatty acids were obtained , when the two systems were compared , except in the presence of nadph-adp-fe3+ , which induced a significantly larger degradation of polyunsaturated fatty acids in isolated nuclear membranes than in intact nuclei , and ( 5 ) no malondialdehyde-dna fluorescent adduct formation was observed in any of the experimental groups studied , as inferred from the characteristics of the fluorescent spectra of lipofuscin-like pigments extracted from incubated nuclear preparations .
C0028584
nuclear membranes
C0007610
nuclei