Haemolymph
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Phenoloxidase activity and haemolymph cytology in honeybees challenged with a virus suspension (deformed wings virus DWV) or phosphate buffered suspension (PBS)
RESUMO: O sistema imune inato das abelhas consiste principalmente em peptídeos antimicrobianos, imunidade celular e melanização. Para investigar a resposta imune das abelhas a estressores imunológicos, foram testados três graus de estresse. Abelhas recém-emergidas naturalmente infectadas por DWV foram coletadas de um apiário livre de Varroa e dividid
Cienc. Rural. Publicado em: 18/02/2019
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2. On triatomines, cockroaches and haemolymphagy under laboratory conditions: new discoveries
For a long time, haematophagy was considered an obligate condition for triatomines (Hemiptera: Reduviidae) to complete their life cycle. Today, the ability to use haemolymphagy is suggested to represent an important survival strategy for some species, especially those in genus Belminus. As Eratyrus mucronatus and Triatoma boliviana are found with cockroaches
Mem. Inst. Oswaldo Cruz. Publicado em: 03/10/2016
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3. Copper Induced Lysosomal Membrane Destabilisation in Haemolymph Cells of Mediterranean Green Crab (Carcinus aestuarii, Nardo, 1847) from the Narta Lagoon (Albania)
ABSTRACTDestabilisation of blood cell lysosomes in Mediterranean green crabCarcinus aestuarii was investigated using Neutral Red Retention Assay (NRRA). Crabs collected in Narta Lagoon, Vlora (Albania) during May 2014 were exposed in the laboratory to sub-lethal, environmentally realistic concentrations of copper. Neutral Red Retention Time (NRRT) and glucos
Braz. arch. biol. technol.. Publicado em: 2015-10
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4. DsRed2 transient expression in Culex quinquefasciatus mosquitoes
Culex quinquefasciatus mosquitoes have been successfully genetically modified only once, despite the efforts of several laboratories to transform and establish a stable strain. We have developed a transient gene expression method, in Culex, that delivers plasmid DNA directly to the mosquito haemolymph and additional tissues. We were able to express DsRed2 f
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-06
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5. The significance of the amoebocyte-producing organ in Biomphalaria glabrata
In molluscs, internal defence against microorganisms is performed by a single cell type, i.e., the haemocyte or amoebocyte. The origin of these cells in Biomphalaria glabrata was initially thought to be localised within the vasculo-connective tissue. More recently, origin from a single organ, termed the amoebocyte-producing organ (APO), has been postulated b
Memórias do Instituto Oswaldo Cruz. Publicado em: 2012-08
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6. Purificação e caracterização de peptídeos antimicrobianos presentes na hemolinfa de Acutisoma longipes (Gonyleptidae; Opiliones). / Purification and characterization of antimicrobial peptides present in the haemolymph of Acutisoma longipes (Gonyleptidae; Opiliones).
No sistema imune de artrópodes, em contraste com o dos vertebrados, não ocorre uma resposta a antígenos por meio da produção de imunoglobulinas específicas contra agentes infecciosos. Portanto, a imunidade adaptativa está ausente, sendo que o sistema imune nesses animais baseia-se somente numa resposta inata. Os mecanismos presentes na resposta imune
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2011
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7. Participation of N-acetyl-D-glucosamine carbohydrate moieties in the recognition of Schistosoma mansoni sporocysts by haemocytes of Biomphalaria tenagophila
Lectin-carbohydrate binding may be involved in the recognition of Schistosoma mansoni sporocysts by haemocytes of Biomphalaria; therefore, we tested if this interaction is associated with snail resistance against Schistosoma infection. In vitro data showed that most of the S. mansoni sporocysts cultured with haemocytes from Biomphalaria glabrata BH, a highly
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-11
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8. A comparative study of fat body morphology in five mosquito species
The insect fat body plays major roles in the intermediary metabolism, in the storage and transport of haemolymph compounds and in the innate immunity. Here, the overall structure of the fat body of five species of mosquitoes (Aedes albopictus, Aedes fluviatilis, Culex quinquefasciatus, Anopheles aquasalis and Anopheles darlingi) was compared through light, s
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-09
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9. Interaction between primary and secondary sporocysts of Schistosoma mansoni and the internal defence system of Biomphalaria resistant and susceptible to the parasite
The outcome of the interaction between Biomphalaria and Schistosoma mansoni depends on the response of the host internal defence system (IDS) and the escape mechanisms of the parasite. The aim of this study was to evaluate the responsiveness of the IDS (haemocytes and soluble haemolymph factors) of resistant and susceptible Biomphalaria tenagophila lineages
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-06
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10. Localization and function of Rhipicephalus (Boophilus) microplus vitellin-degrading cysteine endopeptidase
The tick Rhipicephalus (Boophilus) microplus is an important parasite of cattle in many areas of the tropics. Characterization of molecules involved in mechanisms such as vitellogenesis and embryo development may contribute to a better understanding of this parasite’s physiology. The vitellin-degrading cysteine endopeptidase (VTDCE) is the most active enzy
Publicado em: 2011
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11. AvaliaÃÃo do efeito dos polissacarÃdeos sulfatados extraÃdos da microalga Dunaliella tertiolecta como imunoestimulante em juvenis de camarÃo Litopenaeus vannamei / Evaluation of the effect of sulfated polysaccharides extracted from the microalgae Dunaliella tertiolecta as immunostimulant in juvenile shrimp Litopenaeus vannamei
Aquaculture is one of the activities that most expands around the world and microalgae such as shrimps cultures have a great contribution into this progress. The aim of this study was the culture of the marine microlgae Dunaliella tertiolecta and extract its sulfated polysaccharides from the biomass and from the culture medium as well as to evaluate the effe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/08/2010
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12. Carbohydrate metabolism alterations in Biomphalaria glabrata infected with Schistosoma mansoni and exposed to Euphorbia splendens var. hislopii latex
This paper evaluates the alterations in the glycogen content of tissues (digestive gland and cephalopedal mass) and glucose in the haemolymph of Biomphalaria glabrata BH strain infected with Schistosoma mansoni BH strain and exposed to the latex of Euphorbia splendens var. hislopii. A reduction in the glycogen deposits was observed in infected snails exposed
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-07