The DNA molecule contains a lot of chemical structures that tell the ribosomes how to create new proteins (that have a lot of functions).
Plus, you can benefit from fat burning even after your run as your body keeps burning fat for 2 to 3 hours after finishing a run. If you want to shed a few pounds, make sure you only ingest liquids and maybe a little protein during that time frame. Training on an empty stomach.
The faster you run, the more calories you burn. The more calories you burn, the better chance you will be successful at running for weight loss. Don't go out and try to sprint for two miles straight. I suggest just going out for a normal run, and during the run pick up the pace for 20 seconds every now and then.