MPO is abundantly stored and expressed in
primary azurophilic granules of neutrophils. It utilizes hydrogen
peroxide during respiratory burst to produce hypochlorous acid
[56]. In the present study, the andrographolide supplemented dietary
fed groups showed higher myeloperoxidase activity in comparison
to control. Siwicki [57] reported that Cyprinus carpio
injected with levamisole showed increased myeloperoxidase activity.
The present findings support the reports of Kumari and
Sahoo [58], Clarius batrachus fed with b-1, 3 glucan and in L. rohita
injected with curcumin [59]. Similarly, higher myeloperoxidase
activity was observed in Oplegnathus fasciatus fed with vitamin-E
[60] and in Carassius auratus fed with azadirachtin [22].