Serum biomarkers of physiological defense against reactive oxygen species during environmental stress in Indian dromedaries

Objective: an investigation was carried out in Indian dromedaries (Camelus dromedarius)(Linnaeus 1758) in order to find out the defence against reactive oxygen species during environmentalstress. Material and Methods: serum levels of reactive oxygen species scavengers like vitamin A, vitaminC, vitamin E, glutathione, catalase, superoxide dismutase, monoamine oxidase, glutathione reductase,xanthine oxidase, oxidase and peroxidase were determined. Environmental stress included hot and coldenvironmental temperature periods. These findings were compared with those obtained during moderateenvironmental temperature period serving as control. Results: vitamin A, vitamin C, vitamin E andglutathione activity decreased significantly during hot and cold environmental temperature periods.Serum catalase, superoxide dismutase, monoamine oxidase, glutathione reductase, xanthineoxidase, oxidase and peroxidase activities increased significantly during hot and coldenvironmental temperature periods. Conclusion: environmental stress induced marked changes in thelevels of reactive oxygen species scavengers in the serum of Indian dromedaries.