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Evaluation of changes in the carbohydrate metabolism of Biomphalaria glabrata Say, 1818 exposed to experimental coinfection by Angiostrongylus cantonensis (Nematoda) and Echinostoma paraensei (Trematoda).

Tatiane Cristina Dos Santos Bonfim, Florence Gonçalves Martins, Vinícius Menezes Tunholi-Alves, Mariana Gomes Lima, Ester Maria Mota, Arnaldo Maldonado, Jairo Pinheiro, Juberlan Garcia,

The interaction between intermediate snail hosts and helminths can cause metabolic changes in the former. The snails use their reserves for maintenance of their vital processes, by activating the internal defense system and repairing tissue damage, while also supplying necessary energy for the parasites' development. Our aims were to evaluate ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2020, 170:107314]

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Physiology and immunity of the invasive giant African snail, Achatina (Lissachatina) fulica, intermediate host of Angiostrongylus cantonensis.

Mariana G Lima, Ronaldo de C Augusto, Jairo Pinheiro, Silvana C Thiengo,

As one of the most successful invasive land snail species, Achatina (Lissachatina) fulica Bowdich, 1822 has achieved wide global distribution, particularly in (sub)tropical regions, with further dispersal likely due to climate change. This species of giant African snails (up to 17 cm shell length) is a pest that has extensive negative ... Read more >>

Dev. Comp. Immunol. (Developmental and comparative immunology)
[2020, 105:103579]

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Accumulation of oocysts of Cryptosporidium parvum in Biomphalaria glabrata (Pulmonata:Planorbidae) under experimental conditions.

Cinthia Lopes Schiffler, Jairo Pinheiro, Teresa Cristina Bergamo do Bomfim,

INTRODUCTION:Cryptosporidium oocysts are easily transported to various aquatic environments. The objective of this study was to evaluate B. glabrata mollusks exposed to food containing C. parvum oocysts. METHODS:Six experimental groups were used with B. glabrata either exposed or not to C. parvum oocysts. Microscopic and molecular diagnostics were conducted in ... Read more >>

Rev. Soc. Bras. Med. Trop. (Revista da Sociedade Brasileira de Medicina Tropical)
[2019, 52:e20180273]

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Alterations in the Mitochondrial Physiology of Biomphalaria glabrata (Mollusca: Gastropoda) After Experimental Infection by Angiostrongylus cantonensis (Nematoda: Metastrongylidae).

Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Ludimila Santos Amaral, Juberlan da Silva Garcia, Mariana Gomes Lima, Renato Augusto DaMatta, Jairo Pinheiro,

BACKGROUND:Angiostrongylus cantonensis is a metastrongylid nematode that has a heteroxenous cycle, where snails act as intermediate hosts and the rodents Rattus rattus and Rattus novergicus are the definitive hosts. However, humans may act as accidental hosts presenting an atypical form of parasitism. This fact has motivated research to better understand ... Read more >>

Acta Parasitol. (Acta parasitologica)
[2019, 64(4):693-699]

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Biological and histological changes in reproductive patterns of Biomphalaria glabrata experimentally co-infected by Echinostoma paraensei and Angiostrongylus cantonensis.

Tatiane Cristina Dos Santos Bonfim, Vinícius Menezes Tunholi-Alves, Florence Gonçalves Martins, Ester Maria Mota, Arnaldo Maldonado, Jairo Pinheiro, Juberlan Silva Garcia,

Investigation of co-infection by different helminths in snails can provide essential information about the biology of parasites co-existence under natural conditions. This study aimed to investigate the reproductive and histological changes of Biomphalaria glabrata experimentally co-infected with Echinostoma paraensei and Angiostrongylus cantonensis. Five groups of snails i.e. uninfected, with single ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2018, 195:66-70]

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Unveiling the oxidative metabolism of Achatina fulica (Mollusca: Gastropoda) experimentally infected to Angiostrongylus cantonensis (Nematoda: Metastrongylidae).

Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Juberlan Garcia, Esther Maria Mota, Rosane Nora Castro, Emerson Guedes Pontes, Jairo Pinheiro,

For the first time, alterations in the oxidative metabolism of Achatina fulica experimentally infected with different parasite loads of Angiostrongylus cantonensis were determined. For this, the hemolymph activities of lactate dehydrogenase (LDH) and hexokinase and the glucose concentrations in the hemolymph, as well as the polysaccharide reserves in the digestive ... Read more >>

Parasitol. Res. (Parasitology research)
[2018, 117(6):1773-1781]

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Bulimulus tenuissimus (mollusca) as a new potential host of Angiostrogylus cantonensis (nematoda), a histological and metabolic study.

Florence Gonçalves Martins, Mariana Gomes Lima, Rosane Nora Castro, Luiza D'Oliveira Sant'Anna, Marcos Antônio José Dos Santos, Juberlan Silva Garcia, Jairo Pinheiro,

The terrestrial gastropod Bulimulus tenuissimus is widespread in South America. It is an intermediate host of many parasites, but there are no records of infection of this snail by Angiostrongylus cantonensis, despite the occurrence of this parasite and angiostrongyliasis cases in the same areas in which B. tenuissimus occurs. For ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2018, 154:65-73]

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Ultraestructural study of effects of alkylphospholipid analogs against nematodes.

Viviane Sant'Anna, Marcelle Railbolt, Aleksandra Oliveira-Menezes, Theodora Calogeropoulou, Jairo Pinheiro, Wanderley de Souza,

Alkylphospholipid analogs were initially developed as anticancer agents and were later found to antiparasitic activity. Miltefosine is the prototype alkylphosphocholine and is the first oral treatment against visceral leishmaniasis. Here we investigated the effects of miltefosine and two ring-substituted alkylphosphocholine derivatives, TCAN26 and TC70, on the viability, morphology, and ultrastructure ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2018, 187:49-58]

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Evidence of the Presence of Thyroid Hormones in Achatina fulica Snails.

Danilo Lustrino, Alba C M Silva, Iracema G Araujo, Victor M Tunholi, Vinícius M Tunholi-Alves, Rosane N Castro, Denise P Carvalho, Jairo Pinheiro, Michelle P Marassi,

The objective of this study was to identify thyroid hormones and to examine their putative site of synthesis in Achatina fulica snails. For this purpose, radioimmunoassays were performed for T3 and T4 before and after long starvation with or without hemolymph deproteinization. Sodium/iodide symporter activity in vivo was analyzed through ... Read more >>

An. Acad. Bras. Cienc. (Anais da Academia Brasileira de Ciencias)
[2017, 89(3 Suppl):2181-2188]

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Effects of experimental Angiostrongylus cantonensis infection on the reproductive biology of Biomphalaria straminea and Biomphalaria tenagophila.

Mariana G Lima, Vinícius M Tunholi-Alves, Tatiane Cristina S Bonfim, Fabrício N Gaudêncio, Juberlan S Garcia, Arnaldo Maldonado, Jairo Pinheiro, Silvana C Thiengo,

Eosinophilic meningoencephalitis is an endemic zoonosis in Southeast Asia and the Pacific Islands, but in recent years, new cases have been reported in various countries outside these regions, including Brazil, where it is considered an emerging disease. In this study, the effect of infection by the nematode Angiostrongylus cantonensis, one ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2017, 149:106-113]

Cited: 1 time

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Activity of carboxylesterases, glutathione-S-transferase and monooxygenase on Rhipicephalus microplus exposed to fluazuron.

Fabrício Nascimento Gaudêncio, Guilherme Marcondes Klafke, Vinícius Menezes Tunholi-Alves, Thaís Paes Ferreira, Cristiane Nunes Coelho, Adivaldo Henrique da Fonseca, Isabele da Costa Angelo, Jairo Pinheiro,

The objective of this study was to assess the effect of the exposure to fluazuron on the activity of common pesticide detoxification enzyme groups in the cattle tick (Rhipicephalus microplus). Engorged females of a susceptible strain (POA) and a resistant strain (Jaguar) were exposed in vitro to fluazuron and their ... Read more >>

Parasitol. Int. (Parasitology international)
[2017, 66(5):584-587]

Cited: 1 time

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The influence of Angiostrongylus cantonensis (Nematoda, Metastrongylidae) infection on the aerobic metabolism of Biomphalaria straminea and Biomphalaria tenagophila (Mollusca, Gastropoda).

Mariana G Lima, Vinícius M Tunholi-Alves, Fabrício N Gaudêncio, Florence G Martins, Rosane N Castro, Silvana C Thiengo, Juberlan S Garcia, Arnaldo Maldonado, Jairo Pinheiro,

Angiostrongylus cantonensis is considered the main agent responsible for human eosinophilic meningoencephalitis. This parasite has low specificity for mollusk hosts and it can also use aquatic snails as auxiliary hosts. Studies based on the metabolic profile of Biomphalaria spp. infected by A. cantonensis have been conducted to observe parasite-host interactions. ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2016, 171:1-9]

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Alterations in the mitochondrial physiology of Biomphalaria glabrata (Mollusca: Gastropoda) after experimental infection by Angiostrongylus cantonensis (Nematoda: Metastongylidae).

Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Anderson Teixeira Santos, Tatiane Cristina Dos Santos Bonfim, Juberlan da Silva Garcia, Arnaldo Maldonado, Wagner Seixas da-Silva, Jairo Pinheiro,

The effect of infection by Angiostrongylus cantonensis on the mitochondrial physiology of Biomphalaria glabrata was investigated after exposure to 1200 L1 larvae. The snails were dissected one, two and three weeks after infection for collection and mechanical permeabilization of the gonad-digestive gland (DGG) complex. The results obtained indicate that prepatent infection ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2016, :]

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Alterations in the oxidative metabolism of Rhipicephalus (Boophilus) microplus ticks in response to exposure to the insect growth regulator fluazuron.

Fabrício Nascimento Gaudêncio, Vinícius Menezes Tunholi-Alves, Mariana Gomes Lima, Patrícia Silva Gôlo, Isabele da Costa Angelo, Rosane Nora Castro, Adivaldo Henrique da Fonseca, Fabio Barbour Scott, Jairo Pinheiro,

Aiming to characterize the potential off-target effects of fluazuron on ticks, biochemical analyses were conducted to evaluate changes in the carbohydrate metabolism of Rhipicephalus (Boophilus) microplus ticks after exposure to fluazuron. Hemolymph and fat body were collected from female ticks before and after (4, 8 and 15 days) exposure to ... Read more >>

Rev Bras Parasitol Vet (Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria)
[2016, 25(1):54-60]

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Evaluation of the mitochondrial system in the gonad-digestive gland complex of Biomphalaria glabrata (Mollusca, Gastropoda) after infection by Echinostoma paraensei (Trematoda, Echinostomatidae).

Victor Menezes Tunholi, Vinícius Menezes Tunholi-Alves, Anderson Teixeira Santos, Juberlan da Silva Garcia, Arnaldo Maldonado, Wagner Seixas da-Silva, Maria de Lurdes de Azevedo Rodrigues, Jairo Pinheiro,

The effect of infection by Echinostoma paraensei on the mitochondrial physiology of Biomphalaria glabrata was investigated after exposure to 50 miracidia. The snails were dissected one, two, three and four weeks after infection for collection and mechanical permeabilization of the gonad-digestive gland (DGG) complex. The results obtained indicate that prepatent ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2016, 136:136-141]

Cited: 1 time

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Histopathological changes in the kidneys of vertebrate hosts infected naturally and experimentally with Paratanaisia bragai (Trematoda, Digenea).

Vanessa Barreto Xavier, Aleksandra Oliveira-Menezes, Marcos Antônio José dos Santos, Suzana Bencke Amato, Eduardo José Lopes Torres, Jairo Pinheiro, Solange Viana Paschoal Blanco Brandolini,

Paratanaisia bragai is a trematode parasite that reaches sexual maturity in the kidney collecting ducts of domesticated and wild fowl and whose intermediate hosts are the snails Subulina octona and Leptinaria unilamellata. There are some discrepancies in descriptions of the pathology of this parasite in bird kidneys. Therefore, the purpose ... Read more >>

Rev Bras Parasitol Vet (Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria)
[2015, 24(2):241-246]

Cited: 4 times

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Changes in the lipid profile of Bradybaena similaris (Férussac, 1821) (Gastropoda, Xanthonychidae) during the development of Eurytrema coelomaticum (Giard and Billet, 1892) (Digenea, Dicrocoeliidae).

Hélio Alves, Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Patrícia Gôlo, Vânia Rita Elias Pinheiro Bittencourt, Jairo Pinheiro,

The effect of experimental exposure of Bradybaena similaris by Eurytrema coelomaticum on the cholesterol and triglycerides total levels circulating in the hemolymph and the neutral lipids in the digestive gland-gonad (DGG) complex of the host snail were studied. In this study, snails were dissected after one, two, and three months ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2014, 144:52-56]

Cited: 2 times

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Biochemical profile of Achatina fulica (Mollusca: Gastropoda) after infection by different parasitic loads of Angiostrongylus cantonensis (Nematoda, Metastrongylidae).

Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Ludimila Santos Amaral, Esther Maria Mota, Arnaldo Maldonado Júnior, Jairo Pinheiro, Juberlan Garcia,

The effect of experimental infection by different parasitic loads of Angiostrongylus cantonensis (Nematode, Metastrongylidae) on the activities of the aminotransferases and concentration of total proteins, uric acid and urea in the hemolymph of Achatina fulica (Mollusca, Gastropoda) were investigated. There was a significant decrease in the concentration of total proteins ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2015, 124:1-5]

Cited: 2 times

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Physiological changes in Rhipicephalus microplus (Acari: Ixodidae) experimentally infected with entomopathogenic fungi.

Isabele C Angelo, Vinícius M Tunholi-Alves, Victor M Tunholi, Wendell M S Perinotto, Patrícia S Gôlo, Mariana G Camargo, Simone Quinelato, Jairo Pinheiro, Vânia R E P Bittencourt,

Carbohydrate metabolism plays an important role in the physiology and maintenance of energy stores within living organisms. However, when organisms are exposed to adverse physiological conditions, such as during pathogenic infection, these organisms begin to use alternative substrates (proteins and lipids) for energy production. This paper studied the carbohydrate metabolism ... Read more >>

Parasitol. Res. (Parasitology research)
[2015, 114(1):219-225]

Cited: 1 time

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Hematological and histopathological changes in Rattus norvegicus (Wistar) experimentally infected by Angiostrongylus cantonensis (Chen, 1935).

Juberlan Silva Garcia, Tatiane Cristina Dos Santos Bonfim, Arnaldo Maldonado Junior, Victor Menezes Tunholi, Vinícius Menezes Tunholi-Alves, Esther Maria Mota, Raquel de Oliveira Simões, André Campos Santana, Cleber Hooper, Jairo Pinheiro, Marcio Neves Bóia,

Eosinophilic meningitis caused by Angiostrongylus cantonensis is a zoonosis endemic to Southeast Asia and the Pacific islands. It is considered an emerging disease because it has been expanding both geographically and in terms of the range of hosts. In South America, the first cases were reported in Brazil and were ... Read more >>

Parasitol. Int. (Parasitology international)
[2014, 63(4):631-637]

Cited: 2 times

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Physiological alterations in Bradybaena similaris (Stylommatophora: Bradybaenidae) induced by the entomopathogenic nematode Heterorhabditis indica (Rhabditida: Heterorhabditidae) strain LPP1.

Victor Menezes Tunholi, Caio Oliveira Monteiro, Lidiane Cristina da Silva, Claudia de Melo Dolinski, Marcos Antônio José dos Santos, Maria de Lurdes de Azevedo Rodrigues, Vânia Rita Elias Pinheiro Bittencourt, Jairo Pinheiro, Vinícius Menezes Tunholi-Alves,

Heterorhabditis is a nematode found in the soil that is used as an important biological control agent against various organisms. However, few studies have been performed of its use against snails and the present study is the first to investigate the effect of experimental exposure of Bradybaena similaris to Heterorhabditis ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2014, 139:12-18]

Cited: 4 times

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Biochemical and histopathological alterations in Biomphalaria glabrata due to co-infection by Angiostrongylus cantonensis and Echinostoma paraensei.

Tatiane Cristina dos Santos Bonfim, Arnaldo Maldonado, Victor Menezes Tunholi, Vinícius Menezes Tunholi-Alves, Marta Julia Faro, Esther Maria Mota, Thatiane Cristina Barros da Silva, Jairo Pinheiro, Juberlan Silva Garcia,

The effect of concurrent infection by Echinostoma paraensei and Angiostrongylus cantonensis on the activity of the enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and the concentration of total proteins, uric acid and urea in the hemolymph of Biomphalaria glabrata were investigated. Additionally, histopathological studies were conducted to better understand ... Read more >>

J. Invertebr. Pathol. (Journal of invertebrate pathology)
[2014, 115:80-85]

Cited: 4 times

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Metabolic and histopathological profile of Rattus norvegicus (Wistar) experimentally infected by Angiostrongylus cantonensis (Chen, 1935).

Juberlan Silva Garcia, Camila dos Santos Lúcio, Tatiane Cristina dos Santos Bonfim, Arnaldo Maldonado Junior, Victor Menezes Tunholi, Vinícius Menezes Tunholi-Alves, Esther Maria Mota, Raquel de Oliveira Simões, André Campos Santana, Cleber Hooper, Jairo Pinheiro, Marcio Neves Bóia,

Eosinophilic meningitis is a disease characterized by increased eosinophils in the cerebrospinal fluid (CSF), which is the most commonly caused by invasion of the central nervous system by helminths, as occurs in Angiostrongylus cantonensis infections. The rodent Rattus norvegicus is the definitive natural host and humans act as accidental hosts ... Read more >>

Exp. Parasitol. (Experimental parasitology)
[2014, 137:35-40]

Cited: 2 times

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Biochemical and histological changes in liver of Nectomys squamipes naturally infected by Schistosoma mansoni.

Sócrates Fraga da Costa Neto, Vinicius Menezes Tunholi Alves, Victor Menezes Tunholi Alves, Juberlan Silva Garcia, Marcos Antônio José dos Santos, Vivian de Assunção Nogueira, Marilene de Farias Brito, Rosana Gentile, Jairo Pinheiro,

The South American water rat Nectomys squamipes is a wild mammal reservoir of Schistosoma mansoni in Brazil. In the present study, wild rodents were collected in the field and categorized into two groups: infected and uninfected by S. mansoni. Blood was collected to analyze changes in the serum glucose level ... Read more >>

Rev Bras Parasitol Vet (Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria)
[2013, 22(4):519-524]

Cited: 2 times

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Activation of anaerobic metabolism in Biomphalaria glabrata (Mollusca: Gastropoda) experimentally infected by Angiostrongylus cantonensis (Nematoda, Metastrongylidae) by high-performance liquid chromatography.

Vinícius Menezes Tunholi-Alves, Victor Menezes Tunholi, Rosane N Castro, Luiza D'Oliveira Sant'Ana, Luciana Santos-Amaral, Ana Paula Martins de Oliveira, Juberlan Garcia, Silvana Carvalho Thiengo, Jairo Pinheiro, Arnaldo Maldonado,

The activity of lactate dehydrogenase and the concentrations of glucose in the hemolymph and of glycogen in the digestive gland and cephalopedal mass of Biomphalaria glabrata experimentally infected with Angiostrongylus cantonensis were evaluated. Additionally, high performance liquid chromatography (HPLC) was used to determine the hemolymph concentrations of some carboxylic acids ... Read more >>

Parasitol. Int. (Parasitology international)
[2014, 63(1):64-68]

Cited: 8 times

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