Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas
It is recognized that breast feeding is an alternative means of transmission of Chagas disease. However, thermal treatment of milk can prevent this occurrence. As domestic microwave ovens are becoming commonplace, the efficacy of microwave thermal treatment in inactivating Trypanosoma cruzi trypomas...
Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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Universidade de São Paulo (USP)
2003
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ftdoajarticles:oai:doaj.org/article:23ac0cd574cb4a128bd6db4a76a8cd5e 2024-09-09T19:27:36+00:00 Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas Cláudio Santos Ferreira Vicente Amato Neto Erika Gakiyai Rita Cristina Bezerra Ruth Semira Rodríguez Alarcón 2003-01-01T00:00:00Z https://doi.org/10.1590/S0036-46652003000100008 https://doaj.org/article/23ac0cd574cb4a128bd6db4a76a8cd5e EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652003000100008 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46652003000100008 0036-4665 1678-9946 https://doaj.org/article/23ac0cd574cb4a128bd6db4a76a8cd5e Revista do Instituto de Medicina Tropical de São Paulo, Vol 45, Iss 1, Pp 41-42 (2003) Trypanosoma cruzi Microwave thermal treatment Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2003 ftdoajarticles https://doi.org/10.1590/S0036-46652003000100008 2024-08-05T17:49:30Z It is recognized that breast feeding is an alternative means of transmission of Chagas disease. However, thermal treatment of milk can prevent this occurrence. As domestic microwave ovens are becoming commonplace, the efficacy of microwave thermal treatment in inactivating Trypanosoma cruzi trypomastigotes in human milk was tested. Human milk samples infected with T. cruzi trypomastigotes (Y strain) from laboratory-infected mice, were heated to 63 °C in a domestic microwave oven (2 450 MHz, 700 W). Microscopical and serological examinations demonstrated that none of the animals inoculated orally or intraperitoneally with infected milk which had been treated, got the infection, while those inoculated with untreated, infected milk, became infected. It was concluded that the simple treatment prescribed, which can easily be done at home, was effective in inactivating T. cruzi trypomastigotes contained in human milk. A amamentação é reconhecidamente um modo alternativo de transmissão da doença de Chagas. Entretanto, o tratamento térmico do leite pode evitar tal acidente. Por ser atualmente comum o uso doméstico de fornos de microondas, projetou-se um experimento para avaliar a eficácia do tratamento térmico do leite por microondas na inativação de formas de Trypanosoma cruzi contidas no leite materno. Acrescentaram-se, a amostras de leite humano, tripomastigotas de T. cruzi (cepa Y) provenientes de camundongos infectados em laboratório. Essas amostras foram aquecidas a 63 ºC (sete minutos, 45% de potência) em forno de microondas doméstico (2 450 MHz, 700 W). Exames microscópicos e sorológicos dos animais inoculados, por via oral ou intraperitoneal, com leite infectado e tratado, foram negativos. Os resultados dos inoculados com leite infectado e não tratado foram positivos. Concluiu-se que este é um processo simples e eficaz para inativar tripomastigotas contidos em leite, podendo facilmente ser executado em ambiente doméstico. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 45 1 41 42 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Trypanosoma cruzi Microwave thermal treatment Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Trypanosoma cruzi Microwave thermal treatment Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Cláudio Santos Ferreira Vicente Amato Neto Erika Gakiyai Rita Cristina Bezerra Ruth Semira Rodríguez Alarcón Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
topic_facet |
Trypanosoma cruzi Microwave thermal treatment Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
It is recognized that breast feeding is an alternative means of transmission of Chagas disease. However, thermal treatment of milk can prevent this occurrence. As domestic microwave ovens are becoming commonplace, the efficacy of microwave thermal treatment in inactivating Trypanosoma cruzi trypomastigotes in human milk was tested. Human milk samples infected with T. cruzi trypomastigotes (Y strain) from laboratory-infected mice, were heated to 63 °C in a domestic microwave oven (2 450 MHz, 700 W). Microscopical and serological examinations demonstrated that none of the animals inoculated orally or intraperitoneally with infected milk which had been treated, got the infection, while those inoculated with untreated, infected milk, became infected. It was concluded that the simple treatment prescribed, which can easily be done at home, was effective in inactivating T. cruzi trypomastigotes contained in human milk. A amamentação é reconhecidamente um modo alternativo de transmissão da doença de Chagas. Entretanto, o tratamento térmico do leite pode evitar tal acidente. Por ser atualmente comum o uso doméstico de fornos de microondas, projetou-se um experimento para avaliar a eficácia do tratamento térmico do leite por microondas na inativação de formas de Trypanosoma cruzi contidas no leite materno. Acrescentaram-se, a amostras de leite humano, tripomastigotas de T. cruzi (cepa Y) provenientes de camundongos infectados em laboratório. Essas amostras foram aquecidas a 63 ºC (sete minutos, 45% de potência) em forno de microondas doméstico (2 450 MHz, 700 W). Exames microscópicos e sorológicos dos animais inoculados, por via oral ou intraperitoneal, com leite infectado e tratado, foram negativos. Os resultados dos inoculados com leite infectado e não tratado foram positivos. Concluiu-se que este é um processo simples e eficaz para inativar tripomastigotas contidos em leite, podendo facilmente ser executado em ambiente doméstico. |
format |
Article in Journal/Newspaper |
author |
Cláudio Santos Ferreira Vicente Amato Neto Erika Gakiyai Rita Cristina Bezerra Ruth Semira Rodríguez Alarcón |
author_facet |
Cláudio Santos Ferreira Vicente Amato Neto Erika Gakiyai Rita Cristina Bezerra Ruth Semira Rodríguez Alarcón |
author_sort |
Cláudio Santos Ferreira |
title |
Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
title_short |
Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
title_full |
Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
title_fullStr |
Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
title_full_unstemmed |
Microwave treatment of human milk to prevent transmission of Chagas disease Tratamento do leite humano pelo microondas para prevenir a transmissão de doença de Chagas |
title_sort |
microwave treatment of human milk to prevent transmission of chagas disease tratamento do leite humano pelo microondas para prevenir a transmissão de doença de chagas |
publisher |
Universidade de São Paulo (USP) |
publishDate |
2003 |
url |
https://doi.org/10.1590/S0036-46652003000100008 https://doaj.org/article/23ac0cd574cb4a128bd6db4a76a8cd5e |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 45, Iss 1, Pp 41-42 (2003) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652003000100008 https://doaj.org/toc/0036-4665 https://doaj.org/toc/1678-9946 doi:10.1590/S0036-46652003000100008 0036-4665 1678-9946 https://doaj.org/article/23ac0cd574cb4a128bd6db4a76a8cd5e |
op_doi |
https://doi.org/10.1590/S0036-46652003000100008 |
container_title |
Revista do Instituto de Medicina Tropical de São Paulo |
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45 |
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41 |
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42 |
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