Longitudinal studies of cardiac troponin I concentrations in serum from male cynomolgus monkeys : resting values and effects of oral and intravenous dosing on biologic variability
© 2015 American Society for Veterinary Clinical Pathology.
| Veröffentlicht in: | Veterinary clinical pathology. - 1975. - 44(2015), 3 vom: 15. Sept., Seite 465-71 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2015
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| Zugriff auf das übergeordnete Werk: | Veterinary clinical pathology |
| Schlagworte: | Journal Article Cardiac biomarker cardiac injury data interpretation monkey husbandry nonhuman primate safety assessment Serum Albumin Troponin I |
| Zusammenfassung: | © 2015 American Society for Veterinary Clinical Pathology. BACKGROUND: There is a paucity of information regarding cardiac troponin (cTn) concentrations in peripheral blood of nonhuman primates (NHP). Even less is known regarding cTn concentrations in monkeys that are restrained for oral or intravenous (iv) dosing OBJECTIVES: The objectives of these studies were to (1) determine cardiac troponin I (cTnI) concentration in resting Cynomolgus monkeys and investigate biologic variability in cTnI concentration over time, (2) determine cTnI changes in restrained monkeys given sham oral dosing, and (3) determine cTnI changes in restrained NHP given a sham intravenous dosing METHODS: The Research Use Only Erenna cTnI ultrasensitive immunoassay based on single molecule counting technology was used to determine serum cTnI concentration in longitudinal studies of male Cynomolgus monkeys at rest, and after sham oral and intravenous dosing. Animals were catheterized prestudy, and blood samples were collected by an automated sampling device to limit disturbance of the animals during studies RESULTS: In resting monkeys cTnI concentrations were relatively low and constant and ranged from 0.2 to 9.6 pg/mL (mean = 2.5 pg/mL), with minimal variability during a 24-hour period. Animals given sham oral dosing also had low cTnI concentration with little variability similar to the resting values. Several animals restrained for intravenous dosing had a small transient increase in cTnI concentration (~5-25 pg/mL) that resolved quickly within one to 3 hours postinjection CONCLUSIONS: Results of this longitudinal study provide information that may be important in differentiating effects of animal handling from those associated with compound-related effects in preclinical toxicology studies of drugs in development |
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| Beschreibung: | Date Completed 13.12.2016 Date Revised 30.12.2016 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1939-165X |
| DOI: | 10.1111/vcp.12272 |