Project Identifier: LBNL-93-091-H01
Project Title:
Training and Basic Research Related to Health Effects of Exposure to HZE Particles (see LBL-93-6-59 in 1994 database)
Principle Investigator:
Dr. Aloke Chatterjee
Project started in: 1993
Project Funding Information:
Project received funding in Fiscal Year 1995.
Project used human subjects in Fiscal Year 1995.
Funding Sources:
NASA Special Center of Research and Training (NSCORT)
Project involves use of multiple protocols/subprojects.
Number of protocols/subprojects associated with this project: 1
Protocol/Subproject # 1
Protocol/Subproject Identifier: CPHS 95-4-84
IRB Review:
Type of Review: Full Board
Most Recent Approval: April 25, 1995
IRB Approval Number: CPHS 95-6-112
Number of Human Subjects in the Last Reporting Period for this Project: 347
(Reporting periods vary.)
Type of Human Subjects Involvement:
OBJECTIVES
The objective of this study is to provide training in the assessment of risk of
carcinogenesis associated with protons and HZE* exposure to humans during
extended space missions. This study will benefit space missions personnel, as
well as providing a better understanding of the mechanisms underlying
carcinogenesis. A novel feature of this project is the utilization of data and
discard tissues from patients previously treated for cancer with similar
particle beams.
*HZE= particles with high [H] atomic numbers [Z] and high energy [E].
METHODOLOGY
Cell cultures are established from the discarded lenses of patients who developed cataracts subsequent to helium or heavy-ion cancer treatments. The existing medical records of subjects are examined to determine the radiation dose to the lenticular volume (lens of the eye). The cell cultures are then used as an in vitro model for evaluating the effect of heavy-ion exposure on the eye, which provides a better understanding of the potential risks of exposure on the eye, and provides a better understanding of the potential risks of exposure to similar radiation associated with extended manned space missions.
INVOLVEMENT OF AND RISKS TO HUMAN SUBJECTS
There are no additional risks associated with this follow-up stage. The subjects were previously treated for cancer with heavy ions under experimental protocols (such as LBL-75-102-H01) and are routinely contacted for medical record follow-up as part of the study. Cataract surgeries are medically necessary procedures performed at the University of California at San Francisco; subjects sign a surgical consent form that informs them that residual tissues from the surgery may be used for medical research.