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      Effect of medicinal plants on the parasitemia of Trypanosoma cruzi and on the biodistribution of sodium pertechnetate (Na99mTcO4)

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          Abstract

          Artemisia vulgaris (AV) is an antihelmintic and antimalarial drug; Aloe vera(babosa) acts as antidiabetic, laxative and anti-inflammatory;Benznidazole (BZ) is a trypanocidal of Trypanosoma cruzi (TC). Technetium-99m (99mTc) has been used in nuclear medicine to obtain diagnostic images. This study evaluated the plant effects in TC parasitemia and on the biodistribution of 99mTc in mice. Twenty mice were infected by TC. At the peak of parasitemia, 5 mice received babosa; 5 received AV and 5 received BZ. The parasitemia was determined at 0, 2, 4 and 6 h of drugs administration. Five infected mice without drugs, 5 mice without TC and the group treated with AV, received 99mTc. The radioactivity was calculated. Infected mice that received babosa reduced significantly (p<0.05) the TC parasitemia. The percentage of activity per gram (%ATI/g) decreased significantly on the AV group. These results indicate that babosa possibly is an anti-TC drug and AV reduces the %ATI/g probably due to its biological effects.

          Translated abstract

          A Artemisia vulgaris (AV) é uma planta com atividades antihelmíntica e antimalárica. Aloe vera (babosa) tem ação antidiabética, laxante e anti-inflamatória. Benzonidazol (BZ) é uma droga tripanosomicida contra o Trypanosoma cruzi (TC), agente da doença de Chagas. Tecnécio-99m (99mTc) tem sido usado na medicina nuclear para obtenção de imagens diagnósticas. Este estudo avaliou o efeito de plantas na parasitemia do TC e na biodistribuição do 99mTc em camundongos. Vinte camundongos foram infectados por TC. No pico da parasitemia, 5 camundongos receberam babosa; 5 receberam AV e 5 receberam BZ. A parasitemia foi determinada durante os tempos 0, 2, 4 e 6 horas após administração das drogas. Cinco camundongos infectados e não tratados, 5 camundongos não infectados e o grupo tratado com AV receberam 99mTc, na forma de pertecnetato de sódio. A radioatividade foi calculada. Os animais infectados que receberam babosa reduziram significativamente (p<0.05) a parasitemia. A porcentagem da radioatividade por grama (%ATI/g) diminuiu significativamente no grupo tratado com AV. Estes resultados indicam que a babosa possivelmente é uma droga anti-TC e a AV reduz a %ATI/g provavelmente devido seus efeitos biológicos e/ou metabólicos.

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          Most cited references20

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          A Critical Review on Chagas Disease Chemotherapy

          In this "Critical Review" we made a historical introduction of drugs assayed against Chagas disease beginning in 1912 with the works of Mayer and Rocha Lima up to the experimental use of nitrofurazone. In the beginning of the 70s, nifurtimox and benznidazole were introduced for clinical treatment, but results showed a great variability and there is still a controversy about their use for chronic cases. After the introduction of these nitroheterocycles only a few compounds were assayed in chagasic patients. The great advances in vector control in the South Cone countries, and the demonstration of parasite in chronic patients indicated the urgency to discuss the etiologic treatment during this phase, reinforcing the need to find drugs with more efficacy and less toxicity. We also review potential targets in the parasite and present a survey about new classes of synthetic and natural compounds studied after 1992/1993, with which we intend to give to the reader a general view about experimental studies in the area of the chemotherapy of Chagas disease, complementing the previous papers of Brener (1979) and De Castro (1993).
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            Aloe vera leaf gel: a review update

            Journal of Ethnopharmacology, 68(1-3), 3-37
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              • Article: not found

              Therapeutic activity and criterion of cure on mice experimentally infected with Trypanosoma cruzi

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                Author and article information

                Journal
                babt
                Brazilian Archives of Biology and Technology
                Braz. arch. biol. technol.
                Instituto de Tecnologia do Paraná - Tecpar (Curitiba, PR, Brazil )
                1516-8913
                1678-4324
                December 2008
                : 51
                : spe
                : 209-214
                Affiliations
                [01] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Centro de Ciências da Saúde Brasil
                [02] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Centro de Biociências orgdiv2Departamento de Microbiologia e Parasitologia Brasil
                [03] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Centro de Ciências da Saúde orgdiv2Departamento de Cirurgia Brasil
                [05] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Departamento de Estatística Brasil
                [04] Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Hospital Universitário Onofre Lopes Brasil
                Article
                S1516-89132008000700034 S1516-8913(08)05100034
                10.1590/S1516-89132008000700034
                f3a53f29-cba3-468c-b48a-a384c9199a59

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 03 September 2008
                : 21 August 2008
                : 01 September 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 23, Pages: 6
                Product

                SciELO Brazil

                Categories
                Drug Interaction and Surgery, and the Biodistribuition of Radiopharmaceutical

                biodistribuição,biodistribution,parasitemia,Trypanosoma cruzi,technetium-99m,Artemisia vulgaris,Aloe vera,tecnécio-99m

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