title: [Age-dependent biochemical studies on the extrarenal effect of furosemid (author's transl)].
abstract: The present study investigated the activities of lysosomal enzymes of the liver after administration of Furosemid. 10 weeks and 1-year old male albino rats were treated with 40 mg Furosemid for 4 subsequent days. According to the method devised by de Duve a sediment rich in lysosomes was produced by fractionated centrifugation and subsequently the enzyme activity of beta-glucuronidase, beta-acetylglucosaminidase, cathepsin D and a collagenolytic enzyme was measured in the sediment as well as in the corresponding lysosomal supernatant. The protein content served as a reference for the enzyme activities. In addition, we investigated the activities of cytoplasmic enzymes such as GOT, GPT, gamma-GT and the alkaline phosphatase. The enzyme activity changes were age-dependent. With Furosemid treatment the activities of beta-glucuronidase and cathepsin D increased in the lysosomal supernatant and the lysosomal sediment of the 1-year old rats, whereas the activities of the collagenolytic enzyme increased in the lysosomal sediment of the same group. In the lysosomal sediment of the 10-weeks old rats a decrease of beta-glucuronidase, beta-acetylglucosaminidase and cathepsin D was observed. These results are discussed in the light of reports from the literature.
mesh_terms: D000367:Age Factors; D000410:Alanine Transaminase / Q000097:blood; D000469:Alkaline Phosphatase / Q000097:blood; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D002403:Cathepsins / Q000378:metabolism; D005665:Furosemide / Q000494:pharmacology*; D005966:Glucuronidase / Q000378:metabolism; D006596:Hexosaminidases / Q000378:metabolism; D008099:Liver / Q000166:cytology / Q000187:drug effects* / Q000201:enzymology; D008247:Lysosomes / Q000187:drug effects / Q000201:enzymology*; D008297:Male; D003012:Microbial Collagenase / Q000378:metabolism; D011506:Proteins / Q000032:analysis; D051381:Rats
chemical_list: D011506:Proteins; D005665:Furosemide; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D000469:Alkaline Phosphatase; D006596:Hexosaminidases; D005966:Glucuronidase; D002403:Cathepsins; D003012:Microbial Collagenase
vernacular_title: Altersabhängige biochemische Untersuchungen zur Frage der extrarenalen Wirkung von Furosemid