They gave animals on a "high PUFA diet" coenzyme q10 at 0.7 mg / kg bodyweight.
This dose is puny (7-8 mg human equivalent), and the "high PUFA diet" was under 5% PUFA, still way less than what the average person gets nowadays due to seed oils being in everything.
They showed that this tiny amount of CoQ10 could reduce DNA strand breaks.
This process increases with age - DNA damage is a known driver of cancer and a sign of overall oxidative stress.
This was an animal study done in a classic model of heart disease, the high cholesterol diet in rabbits.
This diet causes them to rapidly develop atherosclerosis since they naturally consume none of it.
They also compared light therapy to statin.
They used a polarized light with wavelengths in the 400-760 nm range, which is mostly red and near infrared light.
Polarization ensures all of the wavelengths are aligned properly, thought to have a more powerful biological effect.
Animals were given either 5 or 20 min per day of light therapy "on their outside surface of ear with 10 cm distance from lens every day
(10:00-12:00) for 8 weeks"