Abstract:
:The activity of lysosomal acid cholesteryl ester hydrolase (acid CEH, EC 3.1.1.13) in rat liver was determined at 3, 5, 7, 10 and 20 wk following birth. The levels of acid CEH activity showed a marked decrease as rats grew older, whereas those of other lysosomal marker enzymes, such as acid phosphatase, beta-glucuronidase and cathepsin B and D, showed only a slight decrease. On the other hand, acid CEH activity was detected in all subcellular fractions obtained from rat liver, but the enzyme activity in these fractions did not show the age-related decrease observed in the lysosomal fraction. The results presented here suggest that the marked alteration of lysosomal acid CEH activity that accompanies aging may be related to its possible involvement in the regulation of cholesterol concentration in rat liver.
journal_name
Lipidsjournal_title
Lipidsauthors
Tanaka M,Iio T,Tabata Tdoi
10.1007/BF02533950subject
Has Abstractpub_date
1987-09-01 00:00:00pages
677-9issue
9eissn
0024-4201issn
1558-9307journal_volume
22pub_type
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