Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1
Purpose. To investigate the effect of diabetes mellitus induced by alloxan (DMIA) or streptozotocin (DMIS) on the pharmacokinetics of omeprazole in rats. It has been reported that omeprazole is primarily metabolized via hepatic CYP1A2, 2D1, and 3A1 in rats. The expression and mRNA levels of hepatic...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2007-09-01
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| Series: | Journal of Pharmacy & Pharmaceutical Sciences |
| Online Access: | https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/694 |
| _version_ | 1797708579043540992 |
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| author | Dae Young Lee Myung G. Lee Hyun Sook Shin Inchul Lee |
| author_facet | Dae Young Lee Myung G. Lee Hyun Sook Shin Inchul Lee |
| author_sort | Dae Young Lee |
| collection | DOAJ |
| description | Purpose. To investigate the effect of diabetes mellitus induced by alloxan (DMIA) or streptozotocin (DMIS) on the pharmacokinetics of omeprazole in rats. It has been reported that omeprazole is primarily metabolized via hepatic CYP1A2, 2D1, and 3A1 in rats. The expression and mRNA levels of hepatic CYP1A2 and 3A1 increases in DMIA and DMIS rats, but the expression of hepatic CYP2D1 does not change in DMIS rats. In addition, the metabolic activities of intestinal CYP3A1/2 decreases in DMIS rats. Thus, it could be expected that the pharmacokinetics of omeprazole would be affected by changes in both DMIA and DMIS. Methods. Omeprazole was administered intravenously (20 mg/kg) and orally (40 mg/kg) to DMIA and DMIS rats and their respective controls. Results. After intravenous administration of omeprazole, the CLNR of the drug was significantly faster in DMIA (52.6 versus 67.4 mL/min/kg) and DMIS (50.2 versus 73.0 mL/min/kg) rats than the respective controls. However, after oral administration of omeprazole, the AUC was comparable between each type of diabetic rat and the respective controls. Conclusions. The significantly faster CLNR of intravenous omeprazole could be due to increased expression and mRNA levels of hepatic CYP1A2 and 3A1 in both types of diabetic rat. The comparable AUC of oral omeprazole could be due to a decrease in the intestinal first-pass effect of omeprazole caused by decreased intestinal CYP3A1/2 in diabetic rats. Following both intravenous and oral administration in DMIA and DMIS rats, the pharmacokinetics of omeprazole were similarly altered. |
| first_indexed | 2024-03-12T06:23:41Z |
| format | Article |
| id | doaj.art-1d6902b03c0c44b385b892f75440a7bf |
| institution | Directory Open Access Journal |
| issn | 1482-1826 |
| language | English |
| last_indexed | 2024-03-12T06:23:41Z |
| publishDate | 2007-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Journal of Pharmacy & Pharmaceutical Sciences |
| spelling | doaj.art-1d6902b03c0c44b385b892f75440a7bf2023-09-03T02:02:33ZengFrontiers Media S.A.Journal of Pharmacy & Pharmaceutical Sciences1482-18262007-09-0110410.18433/J3WC7GChanges in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1Dae Young Lee0Myung G. Lee1Hyun Sook Shin2Inchul Lee3College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National UniversityCollege of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National UniversityCollege of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University (Present address: Department of Product DevelopmentDepartment of Diagnostic Pathology, College of Medicine, University of Ulsan, Asan Foundation, Asan Medical CenterPurpose. To investigate the effect of diabetes mellitus induced by alloxan (DMIA) or streptozotocin (DMIS) on the pharmacokinetics of omeprazole in rats. It has been reported that omeprazole is primarily metabolized via hepatic CYP1A2, 2D1, and 3A1 in rats. The expression and mRNA levels of hepatic CYP1A2 and 3A1 increases in DMIA and DMIS rats, but the expression of hepatic CYP2D1 does not change in DMIS rats. In addition, the metabolic activities of intestinal CYP3A1/2 decreases in DMIS rats. Thus, it could be expected that the pharmacokinetics of omeprazole would be affected by changes in both DMIA and DMIS. Methods. Omeprazole was administered intravenously (20 mg/kg) and orally (40 mg/kg) to DMIA and DMIS rats and their respective controls. Results. After intravenous administration of omeprazole, the CLNR of the drug was significantly faster in DMIA (52.6 versus 67.4 mL/min/kg) and DMIS (50.2 versus 73.0 mL/min/kg) rats than the respective controls. However, after oral administration of omeprazole, the AUC was comparable between each type of diabetic rat and the respective controls. Conclusions. The significantly faster CLNR of intravenous omeprazole could be due to increased expression and mRNA levels of hepatic CYP1A2 and 3A1 in both types of diabetic rat. The comparable AUC of oral omeprazole could be due to a decrease in the intestinal first-pass effect of omeprazole caused by decreased intestinal CYP3A1/2 in diabetic rats. Following both intravenous and oral administration in DMIA and DMIS rats, the pharmacokinetics of omeprazole were similarly altered.https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/694 |
| spellingShingle | Dae Young Lee Myung G. Lee Hyun Sook Shin Inchul Lee Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 Journal of Pharmacy & Pharmaceutical Sciences |
| title | Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 |
| title_full | Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 |
| title_fullStr | Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 |
| title_full_unstemmed | Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 |
| title_short | Changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin: Faster clearance of omeprazole due to induction of hepatic CYP1A2 and 3A1 |
| title_sort | changes in omeprazole pharmacokinetics in rats with diabetes induced by alloxan or streptozotocin faster clearance of omeprazole due to induction of hepatic cyp1a2 and 3a1 |
| url | https://journals.library.ualberta.ca/jpps/index.php/JPPS/article/view/694 |
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