Activities of glutathione-S-transferase and ethoxycoumarin-O-deethylase in tissues of camels, sheep, goats and rats

H. A. El Sheikh, B. H. Ali, A. M. Homeida, H. J. Hapke

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Abstract

1. The activities of the drug metabolizing enzymes ethoxycoumarin-O-deethylase, glutathione-S-transferase, and protein concentrations were measured in vitro in the liver, kidney and duodenal mucosa of camels, sheep, goats and rats. 2. Enzyme activities were generally higher in the liver than in the kidney and duodenal mucosa in the four species studied. 3. The activities of ethoxycoumarin-O-deethylase and glutathione-S-transferase in liver of male kids were about one third and half of that in adult male goats, respectively.In the kidney and duodenal mucosa of male kids, the activity of glutathione-S-transferase was about 70% and 53% of that in the mature male goat, respectively. In the latter tissues, however, there was no detectable activity of ethoxycoumarin-O-deethylase. 4. In general, goats and sheep had similar activities of the two enzymes which were significantly higher than those found in camels and rats. 5. Some sex-related differences were noted in the activity of the two enzymes studied.Female sheep had significantly higher hepatic glutathione-S-transferase than the male; while the enzyme activity in the kidney and duodenal mucosa of male goats was significantly higher than in females. Male rats had higher hepatic ethoxycoumarin-O-deethylase activity than females.

Original languageEnglish
Pages (from-to)293-297
Number of pages5
JournalComparative Biochemistry and Physiology. Part C, Comparative
Volume98
Issue number2-3
DOIs
Publication statusPublished - 1991

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7-Alkoxycoumarin O-Dealkylase
Camelus
Glutathione Transferase
Goats
Sheep
Mucous Membrane
Liver
Kidney
Enzymes
Sex Characteristics

ASJC Scopus subject areas

  • Immunology
  • Pharmacology

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Activities of glutathione-S-transferase and ethoxycoumarin-O-deethylase in tissues of camels, sheep, goats and rats. / El Sheikh, H. A.; Ali, B. H.; Homeida, A. M.; Hapke, H. J.

In: Comparative Biochemistry and Physiology. Part C, Comparative, Vol. 98, No. 2-3, 1991, p. 293-297.

Research output: Contribution to journalArticle

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abstract = "1. The activities of the drug metabolizing enzymes ethoxycoumarin-O-deethylase, glutathione-S-transferase, and protein concentrations were measured in vitro in the liver, kidney and duodenal mucosa of camels, sheep, goats and rats. 2. Enzyme activities were generally higher in the liver than in the kidney and duodenal mucosa in the four species studied. 3. The activities of ethoxycoumarin-O-deethylase and glutathione-S-transferase in liver of male kids were about one third and half of that in adult male goats, respectively.In the kidney and duodenal mucosa of male kids, the activity of glutathione-S-transferase was about 70{\%} and 53{\%} of that in the mature male goat, respectively. In the latter tissues, however, there was no detectable activity of ethoxycoumarin-O-deethylase. 4. In general, goats and sheep had similar activities of the two enzymes which were significantly higher than those found in camels and rats. 5. Some sex-related differences were noted in the activity of the two enzymes studied.Female sheep had significantly higher hepatic glutathione-S-transferase than the male; while the enzyme activity in the kidney and duodenal mucosa of male goats was significantly higher than in females. Male rats had higher hepatic ethoxycoumarin-O-deethylase activity than females.",
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AB - 1. The activities of the drug metabolizing enzymes ethoxycoumarin-O-deethylase, glutathione-S-transferase, and protein concentrations were measured in vitro in the liver, kidney and duodenal mucosa of camels, sheep, goats and rats. 2. Enzyme activities were generally higher in the liver than in the kidney and duodenal mucosa in the four species studied. 3. The activities of ethoxycoumarin-O-deethylase and glutathione-S-transferase in liver of male kids were about one third and half of that in adult male goats, respectively.In the kidney and duodenal mucosa of male kids, the activity of glutathione-S-transferase was about 70% and 53% of that in the mature male goat, respectively. In the latter tissues, however, there was no detectable activity of ethoxycoumarin-O-deethylase. 4. In general, goats and sheep had similar activities of the two enzymes which were significantly higher than those found in camels and rats. 5. Some sex-related differences were noted in the activity of the two enzymes studied.Female sheep had significantly higher hepatic glutathione-S-transferase than the male; while the enzyme activity in the kidney and duodenal mucosa of male goats was significantly higher than in females. Male rats had higher hepatic ethoxycoumarin-O-deethylase activity than females.

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