TY - JOUR
T1 - Curcumin overcomes the inhibitory effect of nitric oxide on Leishmania
AU - Chan, Marion Man Ying
AU - Adapala, Naga Suresh
AU - Fong, Dunne
N1 - Funding Information:
Acknowledgments We thank Mr. Harry Heverling for technical assistance and Dr. Robert Herman for helpful comments on the manuscript. This work was supported with a grant from the National Institutes of Health (AI-45555) to Marion Chan. The study was performed in accordance with United States law.
PY - 2005/4
Y1 - 2005/4
N2 - Upon Leishmania infection, macrophages are activated to produce nitrogen and oxygen radicals simultaneously. It is well established that the infected host cells rely on nitric oxide (NO) as the major weapon against the intracellular parasite. In India where leishmaniasis is endemic, the spice turmeric is used prolifically in food and for insect bites. Curcumin, the active principle of turmeric, is a scavenger of NO. This report shows that curcumin protects promastigotes and amastigotes of the visceral species, Leishmania donovani, and promastigotes of the cutaneous species, L. major, against the actions of S-nitroso-N-acetyl-D,L-penicillamine (SNAP) and DETANONOate, which release NO, 3-morpholino-sydnonimine hydrochloride (SIN-1), which releases NO and superoxide, and peroxynitrite, which is formed from the reaction of NO with superoxide. Thus, curcumin, as an antioxidant, is capable of blocking the action of both NO and NO congeners on the Leishmania parasite.
AB - Upon Leishmania infection, macrophages are activated to produce nitrogen and oxygen radicals simultaneously. It is well established that the infected host cells rely on nitric oxide (NO) as the major weapon against the intracellular parasite. In India where leishmaniasis is endemic, the spice turmeric is used prolifically in food and for insect bites. Curcumin, the active principle of turmeric, is a scavenger of NO. This report shows that curcumin protects promastigotes and amastigotes of the visceral species, Leishmania donovani, and promastigotes of the cutaneous species, L. major, against the actions of S-nitroso-N-acetyl-D,L-penicillamine (SNAP) and DETANONOate, which release NO, 3-morpholino-sydnonimine hydrochloride (SIN-1), which releases NO and superoxide, and peroxynitrite, which is formed from the reaction of NO with superoxide. Thus, curcumin, as an antioxidant, is capable of blocking the action of both NO and NO congeners on the Leishmania parasite.
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U2 - 10.1007/s00436-005-1323-9
DO - 10.1007/s00436-005-1323-9
M3 - Article
C2 - 15772867
AN - SCOPUS:18744385824
SN - 0932-0113
VL - 96
SP - 49
EP - 56
JO - Parasitology Research
JF - Parasitology Research
IS - 1
ER -