Trichuris trichiura in a post-Colonial Brazilian mummy

Bianucci, Raffaella; Torres, Eduardo José Lopes; Santiago, Juliana M.F. Dutra; Ferreira, L.; Nerlich, Andreas G.; Souza, Sheila Maria Mendonca de; Giuffra, Valentina; Chieffi, Pedro Paulo; Bastos, Otílio Machado Pereira; Travassos, Renata; Souza, Wanderley de; Araújo, Adauto

doi:10.1590/0074-02760140367

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…Trichuris sp. eggs have been found in soil and coprolites dating from the Neolithic period to modern times (Gonçalves et al 2003;Searcey et al 2013;Bianucci et al 2015). The nearest examples of archaeological Trichuris sp.…”

Section: Discussionmentioning

confidence: 99%

Trichuris trichiurain the mummified remains of southern Siberian nomads

Slavinsky¹,

Chugunov²,

Цыбанков³

et al. 2018

Antiquity

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Section: Discussionmentioning

confidence: 99%

Trichuris trichiurain the mummified remains of southern Siberian nomads

Slavinsky¹,

Chugunov²,

Цыбанков³

et al. 2018

Antiquity

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“…(24) A infecção é adquirida pela ingestão de água ou alimentos contaminados e é geralmente assintomática. No entanto, quando ela progride de uma infecção leve a grave, sinais clínicos específicos se põem de manifesto, (25) como a insurgência da chamada Síndrome Disentérica por Trichuris (SDT), especialmente em crianças, sendo caracterizada por diarreia mucóide, sangramento e prolapso retal complicado com infecção secundária bacteriana grave. (26) A prevalência geral da Tabela 4, quanto à presença de A. lumbricoides, variou de 0,83% (27) a 20,86%, (4) com uma prevalência média de 8,03%.…”

Section: Análise Parasitológicaunclassified

Comparação de duas técnicas parasitológicas na detecção de enteroparasitos em catadores no sul do Brasil

Hernandes

Corrêa

et al. 2018

Semin. Cienc. Biol. Saude

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Alguns pesquisadores e laboratórios clínicos utilizam apenas uma técnica para detecção de parasitos intestinais, podendo isto subestimar os achados. Enteroparasitos afetam principalmente populações com vulnerabilidade social, como os catadores. Alguns destes trabalhadores se reúnem em cooperativas, melhorando a condição de trabalho e o rendimento mensal, porém ainda não é o adequado, sendo por vezes insalubre. Nosso objetivo foi verificar a prevalência de enteroparasitos e comparar duas técnicas parasitológicas em suas medidas de efeito em catadores de material reciclável que trabalhavam em cooperativas no Sul do Brasil. Três amostras de fezes de 48 catadores, de seis cooperativas, foram coletadas em dias alternados, para a análise de parasitos. Duas técnicas de concentração de amostra foram utilizadas (Faust e Ritchie) e testadas para verificação da melhor a ser utilizada. A prevalência de parasitos em catadores foi de 62,5% (30/48) utilizando as duas técnicas em paralelo, sendo que quando utilizadas sozinhas, essa prevalência foi menor. Diagnosticaram-se helmintos e protozoários, tanto patogênicos quanto comensais. A partir da análise estatística, provou-se que as técnicas parasitológicas fornecem melhores resultados quando utilizadas em paralelo, ou seja, quando utilizamos as duas técnicas juntas e em três amostras de fezes. ARTIGOS / ARTICLES CIÊNCIAS BIOLÓGICAS E DA SAÚDEPalavras chave: Parasitos. Saúde pública. Reciclagem.Some researchers and clinical laboratories use just one technique for the detection of enteroparasites, allowing substandard findings. Enteroparasites mostly affect the socially vulnerable population, like the waste pickers. Some of these workers are gathered in cooperatives where work conditions and monthly wage are better. However, this environment is still not adequate being, sometimes, unsanitary. The objective was to study the enteroparasite prevalence and compare the two parasitological techniques in their effect measure in recyclable waste picker who were working in cooperatives in the south of Brazil. Three stool samples from 48 pickers from six cooperatives were collected in alternate days for parasite analysis. Two sample concentration techniques were used (Faust and Ritchie) and tested to verify which was the best to use. The parasite prevalence in waste picker was 62.5% (30/48), using the two techniques concurrently. When used individually, the prevalence was lower. Commensal and pathogenic helminths and protozoan were diagnosed. From the statistical analysis, it was proved that the Resumo

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“…Trichuris trichiura (T. trichiura) is a soil-transmitted worm that is commonly found in humid, tropical and subtropical areas and areas with poor sanitation [1,2]. Worm infections are classified as neglected diseases, namely infections that are not noticed and are chronic without causing clear clinical symptoms and the effects can only be seen in the long term [3].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Extract Areca Seeds (Areca catechu L.) on the Thickness of the Colonic Tunica Muscularis in Mice (Mus musculus) Feeded Trichuris muris Infective Eggs Peroral

Anto¹

2022

Proceedings of the 4th International Conference on Life Sciences and Biotechnology (ICOLIB 2021)

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One species of worm Trichuris trichiura that is often used in research on experimental animals is Trichuris muris. Administration of T. muris infective eggs can significantly increase the thickness of the tunica muscularis of the colon. This thickening of the tunica muscularis intestine is associated with increased contractility of smooth muscle cells lining the intestinal wall. Increased contractility is one of the important mechanisms in expulsion of gastrointestinal parasites. In recent years, various researches on the development of natural and traditional ingredients have been developed to see the effect of areca seeds on changes in the thickness of the tunica muscularis in the large intestine. Flavonoids, alkaloids and tannins contained in areca nut have a role in the immune response and the eradication of worm parasites which have an influence on the thickness of the tunica muscularis of the colon. The purpose of this study was to determine the effect of ethanol extract and ethylacetate fraction of areca seeds on changes in the thickness of the tunica muscularis colon in male mice fed T. muris infective eggs orally. This research is a quasi-experimental study with post-test only control group design conducted at the FMIPA, Universitas Sumatra Utara, Medan. A sample of 10 male mice was randomly assigned to 7 group: (1) negative control;(2) induction of 200 T. muris infective eggs (positive control); (3) positive control and ethanol extract of areca seeds (EEAS), 100 mg/kgbw; (4) positive control and EEAS, 150 mg/kgbw;(5) positive control and the ethylacetate fraction of areca seeds (EAFAS), 100 mg/kgbw; (6) positive control and EAFAS, 150 mg/kgbw; (7) positive control and albendazole, 1mg/20g. The mean differences in the groups were analyzed by the Kruskal Wallis Test method. The results of statistical analysis showed an increase in the thickness of the tunica muscularis colon in the positive control (Mean = 1008.39) compared to the negative control (Mean = 666.16). The thickness of the tunica muscularis colon in group P1 (Mean = 237.34), group P2 (Mean = 216.33), group P3 (Mean = 373.30), group P4 (Mean = 339.69) and group P5 (Mean = 361.26). Pairwise statistical significance (p value) between all groups was p < 0.001. Areca seeds ethanol extract 150 mg/kgbw can effectively reduce the thickness of the tunica muscularis of the colon.

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Trichuris trichiura in a post-Colonial Brazilian mummy

Cited by 7 publications

References 9 publications

Trichuris trichiurain the mummified remains of southern Siberian nomads

Trichuris trichiurain the mummified remains of southern Siberian nomads

Comparação de duas técnicas parasitológicas na detecção de enteroparasitos em catadores no sul do Brasil

The Effect of Extract Areca Seeds (Areca catechu L.) on the Thickness of the Colonic Tunica Muscularis in Mice (Mus musculus) Feeded Trichuris muris Infective Eggs Peroral

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