Abstract
Urinary 8-hydroxyguanosine (8-OHdG), a common biomarker of oxidative stress, was measured in 9 captive western lowland gorillas (Gorilla gorilla gorilla) by ELISA kit. The data showed that urinary 8-OHdG ranged from 4.3 to 193.1ng/mg creatinine. An individual range of median value was 6.8-52.4ng/mg creatinine. No statistically significant effect was found for infection of protozoan parasites (Balantidium coli and Isospora sp.) without any symptoms (>0.05).