Abstract Title:

SPECT/CT analysis of splenic function in genistein-treated malaria-infected mice.

Abstract Source:

Exp Parasitol. 2016 Aug 29. Epub 2016 Aug 29. PMID: 27585499

Abstract Author(s):

Young Ran Ha, Sung-A Kang, Jeongeun Ryu, Eunseop Yeom, Mun Ki Kim, Sang Joon Lee

Article Affiliation:

Young Ran Ha

Abstract:

Spleen traps malaria-infected red blood cells, thereby leading to splenomegaly. Splenomegaly induces impairment in splenic function, i.e., rupture. Therefore, splenomegaly inhibition is required to protect the spleen. In our previous study, genistein was found to have an influence on malaria-induced splenomegaly. However, the effect of genistein in malaria-induced splenomegaly, especially on the function of spleen, has not been fully investigated. In this study, hematoxylin and eosin (H&E) staining images show that genistein partially prevents malaria-induced architectural disruption of spleen. In addition, genistein decreases transgenic Plasmodium parasites accumulation in the spleen. Genistein treatment can protect splenic function from impairment caused by malaria infection. To examine the functions of malaria-infected spleen, we employed single-photon emission computed tomography/computed tomography (SPECT/CT) technology. Red blood cells are specifically radiolabeled with Technetium-99m pertechnetate ((99m)TcO4(-)) and trapped inside the spleen. The standardized uptake values (SUVs) in the spleen of infected mice are higher than those of naive and genistein-treated mice. However, genistein reduces the malaria-induced trapping capacity of spleen for heat-damaged radiolabeled RBCs, while exhibiting a protective effect against malaria. Considering these results, we suggested that genistein could be effectively used in combination therapy for malaria-induced splenic impairment.

Study Type : Animal Study
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