This project will investigate if a deficiency DNA Polymerase Beta (PolB), an enzyme involved in Base Excision Repair (BER), will accelerate age-related remodeling in the heart and the vascular system. The mechanical properties of the vascular system are controlled by its microarchitecture. The largest artery is the aorta, which is composed of four main components: collagen fibrils, elastic fibers, vascular smooth muscle (VSMC) and endothelial cells and these are organized into three layers known as the tunica intima, tunica media and tunica adventitia. In the aorta, there is progressive stiffening with advancing age, but the molecular mechanism responsible for this phenomenon is not well understood. An age comparison between WT and PolB HT mice will be undertaken to interrogate the cardiovasculature in this mouse model and determine if there are any major anatomical differences between the WT (C57BL/6 background) and the PolB HT strains.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Investigator-Initiated Intramural Research Projects (ZIA)
Project #
1ZIAAG000783-02
Application #
9549381
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
2
Fiscal Year
2017
Total Cost
Indirect Cost
Name
Aging
Department
Type
DUNS #
City
State
Country
Zip Code