Age-related changes in many physiological parameters have long been known to occur. The basis for these alterations is, however, not well understood. Response to various stresses seems to decline with age. Changes in the ability to metabolize exogenous as well as endogenous compounds has been suggested as a cause of altered functions. This work will explore senescent changes in metabolism of several tissues--liver, lung, kidney, small intestine, brain, lymphoid tissues. Enzyme systems such as glucuronyl transferase, B-glucuronidase, and those involved in intermediary metabolism and immune responses will be investigated. Altered distribution and excretion of chemicals in aging animals is being studied in order to elucidate the basis for age-related changes in toxicological responses. Age-related alterations in gastrointestinal absorption are also being studied.

Agency
National Institute of Health (NIH)
Institute
National Institute of Environmental Health Sciences (NIEHS)
Type
Intramural Research (Z01)
Project #
1Z01ES021004-05
Application #
4693150
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
5
Fiscal Year
1985
Total Cost
Indirect Cost
Name
U.S. National Inst of Environ Hlth Scis
Department
Type
DUNS #
City
State
Country
United States
Zip Code