Trypanosoma cruzi: Biodistribution of technetium-99m pertechnetate in infected rats

被引：6

作者：

Barbosa, Vanessa S. A.

Holanda, Cecilia M. C. X. ^{[2
]}

Camara, Antonia C. J. ^{[2
]}

Silva, Roseane P.

Oliveira, Daniel P. ^{[2
]}

Moreira, Jeanete A. ^{[3
]}

Medeiros, Aldo C. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Norte, Postgrad Program Hlth Sci, Ctr Expt Surg, BR-59078270 Natal, RN, Brazil

[2] Univ Fed Rio Grande do Norte, Dept Microbiol & Parasitol, BR-59078270 Natal, RN, Brazil

[3] Univ Fed Rio Grande do Norte, Dept Stat, BR-59078270 Natal, RN, Brazil

来源：

EXPERIMENTAL PARASITOLOGY | 2009年 / 123卷 / 04期

关键词：

Technetium; Pertechnetate; Bioavailability; Trypanosoma cruzi; Chagas disease; CHAGAS-DISEASE; SODIUM PERTECHNETATE; STRESS; ANEMIA;

D O I：

10.1016/j.exppara.2009.08.006

中图分类号：

R38 [医学寄生虫学]; Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ; 100103 ;

摘要：

With the aim of investigating the biodistribution of technetium-99 m pertechnetate ((TcO4-)-Tc-99m) in rats infected with Y strain of Tripanosoma Cruzi, at the peak of parasitemia, (14th day of infection), we injected Wistar rats with 0.1 ml of (TcO4-)-Tc-99m (3.7 MBq). After 60 min, the percentage of radioactivity per gram was counted in several isolated organs and blood, using a gamma counter (1470 Wizard, PerkinElmer Finland). The uptake of (TcO4-)-Tc-99m increased significantly in blood and decreased in the colon of infected animals (p < 0.05). A significant reduction in serum iron and red blood cells and a significant increase in total proteins, leukocytes and lymphocytes in the infected rats were observed, compared with controls (p < 0.05). A reduction in muscle layer thickness of the colon and mononuclear inflammation were observed. These results conclusively demonstrate that T. cruzi infection would be associated with changes in the biodistribution of (TcO4-)-Tc-99m and in colon morphology, with potential clinical implications. (c) 2009 Elsevier Inc. All rights reserved.

引用

页码：309 / 312

页数：4

共 34 条

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