CancerQuest | Interview with Dr. John Petros

Dr. John Petros
Associate Professor of Urology
Emory University School of Medicine &
Veterans Administration Hospital

Dr. Petros is a clinician/researcher whose research focuses on the causes, preventiona and treatment of prostate cancer. He is particularly interested in the role of destructive chemicals (oxygen radicals) that are produced naturally by cells. These chemicals can cause damage that can lead to cancer. Other chemicals, anti-oxidants, are able to counteract or prevent the changes caused by oxygen radicals. In the interview, Dr. Petros discusses his research and discusses prostate cancer research in general.

Questions and Answers

	About Dr. Petros(Time: 09 sec)
	What are free radicals and reactive oxygen species (ROS)?(Time: 23 sec)
	What are other sources of ROS in the body?(Time: 18 sec)
	How are ROS created?(Time: 42 sec)
	How do free radicals harm the body?(Time: 50 sec)
	What are antioxidants?(Time: 29 sec)
	What are some examples of dietary antioxidants?(Time: 23 sec)
	What are some sources of dietary antioxidants?(Time: 39 sec)
	How do antioxidants work?(Time: 1 min 47 sec)
	Can antioxidants do harm?(Time: 49 sec)
	Should people in chemotherapy avoid antioxidants?(Time: 49 sec)
	Do antioxidant supplements have side effects?(Time: 1 min 58 sec)
	What is the PSA (prostate specific antigen) blood test?(Time: 2 min 38 sec)
	What supplements can be used to prevent prostate cancer?(Time: 15 sec)
	What are some innovations in prostate cancer treatment?(Time: 1 min 17 sec)
	What is the future of prostate cancer?(Time: 1 min 48 sec)
	What prostate cancer research does your lab do?(Time: 1 min 24 sec)
	What research has your lab done on the effect of mitochondrial mutations?(Time: 54 sec)
	What are the advantages of working at Emory?(Time: 1 min 10 sec)
	What can people do to live healthier lives?(Time: 51 sec)