Status:
COMPLETED
Determinants of Vitamin K Metabolism
Lead Sponsor:
Tufts University
Conditions:
Aging
Osteoporosis
Eligibility:
All Genders
18-90 years
Phase:
NA
Brief Summary
The purpose of this study is to learn how the body responds to different amounts of vitamin K in the diet in order to understand the roles that vitamin K may have in the body. We also need to determin...
Detailed Description
Vitamin K has a role in bone health, but little is known about vitamin K metabolism in aging and in maintenance of bone mass. The limited understanding of vitamin K metabolism impedes the establishmen...
Eligibility Criteria
Inclusion
- \-
Exclusion
- kidney, GI, or liver disease requiring treatment
- prescribed osteoporosis medications in the previous 3 months
- use of acid reducers more than twice per week
- blood clotting disorder and/or abnormal clotting time
- warfarin or anticoagulant use in the previous 12 months
- diabetes
- smoking
- hormone therapy in the previous 3 months
- oral contraceptive use in the previous 3 months; pregnancy
- strict vegetarian diet
Key Trial Info
Start Date :
May 1 2006
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
July 1 2009
Estimated Enrollment :
59 Patients enrolled
Trial Details
Trial ID
NCT00336232
Start Date
May 1 2006
End Date
July 1 2009
Last Update
November 29 2023
Active Locations (1)
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1
Jean Mayer United States Department of Agriculture Human Nutrition Research Center on Aging at Tufts University
Boston, Massachusetts, United States, 02111