The purpose of this study is to determine the effects of aging and gender on cytochrome P4503A drug clearance and to evaluate verapamil, diltiazem and nifedipine clearance as probe of 3A4-mediated drug clearance. The use of erythromycin breath tests and dextromethorphan urinary metabolite ratios as probes of CYP3A4 to address the effects of age and gender on 3A4 activity will be investigated. A subhypothesis is to compare calcium drug clearance to other in vivo probes of CYP3A4 activity.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
2M01RR000048-36A1
Application #
6245176
Study Section
Project Start
1997-07-15
Project End
1997-11-30
Budget Start
1996-10-01
Budget End
1997-09-30
Support Year
36
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Northwestern University at Chicago
Department
Type
DUNS #
005436803
City
Chicago
State
IL
Country
United States
Zip Code
60611
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