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Raineri M, Lima E, Larroza M, Moreno MS, Mansilla MV, Pappalardo JS, Zysler RD. Interaction between natural magnetite sub-micrometric particles and the Fasciola hepatica egg: The role of the exposed surface area. Exp Parasitol 2019; 199:59-66. [PMID: 30825498 DOI: 10.1016/j.exppara.2019.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/12/2019] [Accepted: 02/16/2019] [Indexed: 11/29/2022]
Abstract
Fasciolosis is a zoonotic world widely distributed disease caused by the liver fluke Fasciola hepatica, which affects animals and occasionally humans. On the other hand, natural iron oxide particles like magnetite are commonly found in soils where they participate in a wide range of environmental processes like organic matter decomposition, the adsorption of ions and molecules, and chemical reactions that involve the participation of soil living microorganisms. Since Fasciola eggs become soil components after being released with the infected animal faeces, this study focused on the characterization of the natural interaction between natural sub-micrometric magnetite particles and F. hepatica eggs. Our results indicate that particle binding to the F. hepatica egg depends on the particle size and it is also related to the exposed surface area since any condition that favors particle agglomeration leads to the reduction of the particle-eggshell binding intensity. Interestingly, this binding was avoided when proteins or phosphate were incorporated to the incubation solution, but not after formaldehyde fixation of eggs. Finally, when eggs were exposed to an external magnet after being incubated with magnetite particles, they were attracted to it without particles being detached, indicating a strong type of bonding between them. Therefore, the results presented here give new insights in order to improve the possibility of harvesting F. hepatica eggs by using magnetic materials.
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Affiliation(s)
- Mariana Raineri
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET, Centro Atómico Bariloche, Av. Bustillo 9500, 8400, San Carlos de Bariloche, Argentina; Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. E. Bustillo 9500 (R8402AGP), San Carlos de Bariloche, Río Negro, Argentina.
| | - Enio Lima
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET, Centro Atómico Bariloche, Av. Bustillo 9500, 8400, San Carlos de Bariloche, Argentina; Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. E. Bustillo 9500 (R8402AGP), San Carlos de Bariloche, Río Negro, Argentina
| | - Marcela Larroza
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Bariloche, Grupo de Salud Animal. Bote Modesta, Victoria 4450, 8400, San Carlos de Bariloche, Argentina
| | - M Sergio Moreno
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET, Centro Atómico Bariloche, Av. Bustillo 9500, 8400, San Carlos de Bariloche, Argentina; Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. E. Bustillo 9500 (R8402AGP), San Carlos de Bariloche, Río Negro, Argentina
| | - Marcelo Vásquez Mansilla
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET, Centro Atómico Bariloche, Av. Bustillo 9500, 8400, San Carlos de Bariloche, Argentina; Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. E. Bustillo 9500 (R8402AGP), San Carlos de Bariloche, Río Negro, Argentina
| | - Juan Sebastián Pappalardo
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Bariloche, Grupo de Salud Animal. Bote Modesta, Victoria 4450, 8400, San Carlos de Bariloche, Argentina
| | - Roberto D Zysler
- Instituto de Nanociencia y Nanotecnología CNEA-CONICET, Centro Atómico Bariloche, Av. Bustillo 9500, 8400, San Carlos de Bariloche, Argentina; Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. E. Bustillo 9500 (R8402AGP), San Carlos de Bariloche, Río Negro, Argentina
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Tang Y, Cho PY, Kim BS, Hong SJ. MOLECULAR CLONING AND CHARACTERIZATION OF VITELLINE PRECURSOR PROTEIN B1 FROM CLONORCHIS SINENSIS. J Parasitol 2005; 91:1374-8. [PMID: 16539019 DOI: 10.1645/ge-542r.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In trematodes, vitelline precursor proteins are required for eggshell formation. A cDNA clone of Clonorchis sinensis (CsVpB1) was selected from an EST pool, encoding a polypeptide of 245 amino acids. The CsVpB1 polypeptide demonstrated homology with vitelline precursor proteins from trematodes with high sequential identities. In a phylogenic tree, CsVpB1 clustered with trematode VpB proteins. The CsVpB1 polypeptide was found to be rich in tyrosine residues, including putative predihydroxyphenyl alanine (DOPA) residues, involved in cross-linking of the precursor proteins. Mouse immune sera were raised against a recombinant CsVpB1 protein. In adult C. sinensis, CsVpB1 protein was exclusively localized in vitelline follicles. Based on these results, the CsVpB1 cDNA is believed to encode a VpB of C. sinensis.
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Affiliation(s)
- Yi Tang
- Department of Parasitology, Chung-Ang University College of Medicine, Tongjak-gu, Seoul, Republic of Korea
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Eriksson K, Gustafsson M, Akerlind G. High-performance liquid chromatographic analysis of monoamines in the cestode Diphyllobothrium dendriticum. Parasitol Res 1993; 79:699-702. [PMID: 8295909 DOI: 10.1007/bf00932514] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The presence of biogene monoamines in adult and larval Diphyllobothrium dendriticum (Cestoda) was investigated by high-performance liquid chromatography with electrochemical detection (HPLC-ED). The biogene amines serotonin (5-HT), dopamine (DA), noradrenaline (NA), and adrenaline (A) as well as many of their precursors and metabolites, comprising a total of 15 different substances, were analyzed. 5-HT, DOPA, DA, NA, and A were detected in the worm, with 5-HT, DOPA, and DA being the dominating amines. The DA metabolites DOPAC and 3-MT or the 5-HT precursor 5-hydroxytryptophan could not be detected, but two unidentified substances, believed to be catecholic, were present in the worm. A high concentration of DOPA was measured in the proglottids and especially in the eggs. This is the first report of A in a flatworm.
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Affiliation(s)
- K Eriksson
- Department of Biology, Abo Akademi University, Finland
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