Project Identifier: LLNL-91-114
Project Title:
Food Mutagen Metabolism
Principle Investigator:
Dr. James S. Felton
Project started in: 1991
Project Funding Information:
Project received funding in Fiscal Year 1995.
Project did not use human subjects in Fiscal Year 1995.
Explanation:
No human subjects during this period. Project used old, archived samples.
Funding Sources:
Used for metabolism of food mutagens. Human liver extracts.
Project does not involve use of multiple protocols/subprojects.
IRB Review:
Type of Review: Full Board
Most Recent Approval: January 18, 1995
IRB Approval Number: 91-114
Number of Human Subjects in the Last Reporting Period for this Project: 0
(Reporting periods vary.)
Type of Human Subjects Involvement:
The objectives of this work are to understand the metabolic products of heterocyclic amines produced from human liver extracts in a test tube. Samples are acquired in Australia and shipped here as frozen extracts. Samples are primarily normal tissues from cancer dissections taken under normal surgical procedures for removal of cancerous tissues. Researchers at LLNL never know the identification of the individual, but do know the samples are HIV- and Hep B-negative and whether the donor is a smoker or a nonsmoker. The extracts are incubated with carcinogens in a test tube and the metabolites are identified by HPLC and LC/MS. There are no risks imposed by these experiments beyond the required surgery for the cancer.