Results 221 to 230 of about 21,783 (274)
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The developmental lipidome of Haemonchus contortus
International Journal for Parasitology, 2018Lipids play crucial roles in the biology of organisms, particularly relating to cellular membranes, energy storage, and intra- or inter-cellular signalling. Despite the recent expansion of the lipidomics field, very little is known about the biology of lipids in metzoan pathogens, and, to date, there has been no global lipidomic study of a parasitic ...
Tao, Wang +8 more
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Carbohydrate epitopes on Haemonchus contortus antigens
Parasitology Research, 1996Extracts of infective larvae and adults of the trichostrongylid Haemonchus contortus were studied for the presence of carbohydrate moieties. Several different lectin-binding sites were demonstrated in both stages using a panel of nine lectins. The carbohydrate specificity of the lectins used strongly suggests that alpha-D-mannose, alpha-D-glucose, and ...
Schallig, H. D., van Leeuwen, M. A.
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Veterinary Parasitology, 2020
Haemonchus contortus transthyretin domain-containing protein (HcTTR) with 136 amino acids belongs to a transthyretin-like (TTL) family member. In our previous study, it was reported that HcTTR was a novel antagonist of the goat cytokine Interleukin 4 (IL-4), and was involved in the regulation of host immune responses, implying that it might be applied ...
Xiaowei, Tian +10 more
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Haemonchus contortus transthyretin domain-containing protein (HcTTR) with 136 amino acids belongs to a transthyretin-like (TTL) family member. In our previous study, it was reported that HcTTR was a novel antagonist of the goat cytokine Interleukin 4 (IL-4), and was involved in the regulation of host immune responses, implying that it might be applied ...
Xiaowei, Tian +10 more
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2009
Haemonchus contortus (Rudolphi) Blastocerus dichotomus (Illiger), stomach (abomaso), small intestine, São Paulo, Mato Grosso do Sul (Travassos et al. 1927; Vicente et al. 1997; Nascimento et al. 2000).
Muniz-Pereira, Luís C. +2 more
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Haemonchus contortus (Rudolphi) Blastocerus dichotomus (Illiger), stomach (abomaso), small intestine, São Paulo, Mato Grosso do Sul (Travassos et al. 1927; Vicente et al. 1997; Nascimento et al. 2000).
Muniz-Pereira, Luís C. +2 more
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Synergism of macrocyclic lactones against Haemonchus contortus
Parasitology Research, 2023A possible synergistic effect of macrocyclic lactones' (MLs) combination has been previously described against resistant gastrointestinal nematodes of cattle. In addition to synergism, drug-drug interactions between MLs can also result in additive or antagonistic effect, considering the different MLs pharmacokinetics, pharmacodynamics, and interactions
Matheus Takemi Muchon Nakatani +8 more
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Haemonchus contortus microtubules are cold resistant
Molecular and Biochemical Parasitology, 2014Haemonchus contortus is an important nematode of livestock that is present in most parts of the world. The life cycle comprises free living stages (egg, L1, L2 and L3 larvae), and parasitic stages (L4, adult and egg) in a ruminant. Microtubules are filamentous structures which are made from polymerization of α- and β-tubulin. In vitro polymerization of
Shoaib Ashraf, Roger K. Prichard
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Levamisole binding sites in Haemonchus contortus
International Journal for Parasitology, 1998Larval and adult extracts from isolates of Haemonchus contortus were assayed for specific [3H]levamisole binding activity. All of the tissue preparations displayed [3H]levamisole binding sites. The sensitive isolate SE and resistant isolate RJ showed no differences in larval and adult binding data. Larval SE extracts had higher receptor density (Bmax =
M J, Moreno-Guzmán +5 more
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Resistance of Haemonchus contortus to thiophanate
Research in Veterinary Science, 1980The occurrence of a field strain of Haemonchus contortus which was resistant to thiophanate and susceptible to thiabendazole and levamisole is reported. The LD95 of thiophanate for the strain was found to be 156.1 mg/kg and its resistance factor was 6.7.
J R, Edwards, G, De Chaneet
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Progress on vaccination against Haemonchus contortus
International Journal for Parasitology, 1995Control of Haemonchus contortus at present is largely by the use of anthelmintics, assisted in some regions by management programs. Widespread development of resistance, particularly in South Africa and Australia, and concerns associated with the manufacture and use of chemicals have led to increasing interest in vaccination as an alternative means of ...
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Haemonchus contortus: Food of preinfective larvae
Experimental Parasitology, 1971Abstract Haemonchus contortus eggs were bacterially sterilized and cultivated in three different preparations of Escherichia coli cultures and a nutrient broth at 30 C for 7 days. The following percentages of infective larvae were recovered: supernatant fluid from E. coli culture, 0%; washed E. coli , 71%; heat-killed E.
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