The goal of this project is to provide support of the Division of Translational Toxicology (DTT) activities targeted toward the prevention of diseases or adverse effects caused by exposure to chemical or physical agents. This program is designed to evaluate toxicity following early life exposure to chemicals. Antiretroviral therapies (ART) are recommended for all HIV positive individuals including pregnant mothers. Abacavir (ABC) /dolutegravir (DTG)/lamivudine (3TC) is an ART under evaluation in the project with a specific focus on potential cardiovascular toxicity in F0 dams dosed daily with ABC/DTG/3TC from gestation day 6 through weaning of their F1 offspring, and for an additional 3 months. F1 offspring will be exposed perinatally (gestation and lactational transfer) but not directly dosed. Both F1 and F0 animals will be evaluated at several time points for functional cardiac parameters to determine if ABC/DTG/3TC exposure induces cardiotoxicity. Keywords: HIV/AIDS, Human immunodeficiency virus infection, acquired immune deficiency syndrome, primary HIV, acute retroviral syndrome, asymptomatic HIV, chronic HIV