Relevant bibliographies by topics / Parasited

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Parasited'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Parasited"

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Silva, MAML, A. Ronconi, N. Cordeiro, DEP Bossi, HG Bergallo, MCC Costa, JCC Balieiro, and FLSB Varzim. "Blood parasites, total plasma protein and packed cell volume of small wild mammals trapped in three mountain ranges of the Atlantic Forest in Southeastern Brazil." Brazilian Journal of Biology 67, no. 3 (August 2007): 531–35. http://dx.doi.org/10.1590/s1519-69842007000300019.

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A study of blood parasites in small wild non-flying mammals was undertaken in three areas of the Atlantic Forest in Southeastern Brazil: Serra de Itatiaia, RJ, Serra da Bocaina, SP and Serra da Fartura, SP, from June 1999 to May 2001. A total of 450 animals (15 species) were captured in traps and it was observed in 15.5% of the blood smears the presence of Haemobartonella sp. and Babesia sp. in red blood cells. There was no statistically significant difference between parasited and non-parasited specimens regarding total plasma protein, packed cell volume and body weight, which strongly suggests that these specimens might be parasite reservoirs.
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PAVANELLI, G. C., and R. M. TAKEMOTO. "Aspects of the ecology of proteocephalid cestodes, parasites of Sorubim lima (Pimelodidae), of the upper Paraná River, Brazil: II. Interspecific associations and distribution of gastrintestinal parasites." Revista Brasileira de Biologia 60, no. 4 (November 2000): 585–90. http://dx.doi.org/10.1590/s0034-71082000000400007.

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One hundred and seven specimens of Sorubim lima (Bloch & Schneider, 1801) were collected in the floodplain of the upper Paraná River, Brazil between March 1992 and February 1996. Ninety-five specimens (88.78%) were parasited by at least a species of proteocephalid cestode. 7,573 parasites specimens of four different species were collected (average intensity 79.71 parasites/host): Paramonticellia itaipuensis Pavanelli & Rego, 1991; Nupelia portoriquensis Pavanelli & Rego, 1991; Spatulifer maringaensis Pavanelli & Rego, 1989 and Spasskyellina spinulifera (Woodland, 1935). The two most prevalent species, Spatulifer maringaensis and Paramonticellia itaipuensis, were parasiting the entire gastrointestinal tract. Nupelia portoriquensis parasited only the anterior and posterior intestine of the host.
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Uji, Tahan, Sunaryo Sunaryo, and Erlin Rachman. "KEANEKARAGAMAN JENIS BENALU PARASIT PADA TANAMAN KOLEKSI DI KEBUN RAYA EKA KARYA, BALI." Berkala Penelitian Hayati 13, no. 1 (December 31, 2007): 1–5. http://dx.doi.org/10.23869/bphjbr.13.1.20071.

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Benalu is one of the parasitic plants which have ataccked many collection plants species in Eka Karya Botanical Garden, Bali. Exploration and collection of these parasitic plants in this area are conducted. Four parasitic plants species, i.e. Dendrophthoe pentandra, Helixanthera cylindrica, Scurrula atropurpurea, and S. parasitica are recorded and they attack 32 collection plants species in Eka Karya Botanical Garden. Dendrophthoe pentandra is reported as the highest population species to parasiting collection plants species. While the Myrtaceae family and Syzygium genera are also reported as the highest parasited species.
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CAPPA, FEDERICO, FABIO MANFREDINI, ROMANO DALLAI, MARCO GOTTARDO, and LAURA BEANI. "Parasitic castration by Xenos vesparum depends on host gender." Parasitology 141, no. 8 (April 28, 2014): 1080–87. http://dx.doi.org/10.1017/s003118201400047x.

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SUMMARYHost castration represents a mechanism used by parasites to exploit energy resources from their hosts by interfering with their reproductive development or to extend host lifespan by removing risks associated with reproductive activity. One of the most intriguing groups of parasitic castrators is represented by the insects belonging to the order Strepsiptera. The macroparasite Xenos vesparum can produce dramatic phenotypic alterations in its host, the paper wasp Polistes dominula. Parasitized female wasps have undeveloped ovaries and desert the colony without performing any social task. However, very little attention has been given to the parasitic impact of X. vesparum on the male phenotype. Here, we investigated the effects of this parasite on the sexual behaviour and the morpho-physiology of P. dominula males. We found that, differently from female wasps, parasitized males are not heavily affected by Xenos: they maintain their sexual behaviour and ability to discriminate between female castes. Furthermore, the structure of their reproductive apparatus is not compromised by the parasite. We think that our results, demonstrating that the definition of X. vesparum as a parasitoid does not apply to infected males of P. dominula, provide a new perspective to discuss and maybe reconsider the traditional view of strepsipteran parasites.
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Muñoz, G., and M. Rebolledo. "Comparison of the parasite community of two notothens, Notothenia rossii and N. coriiceps (Pisces: Nototheniidae), from King George Island, Antarctica." Journal of Helminthology 93, no. 6 (October 1, 2018): 732–37. http://dx.doi.org/10.1017/s0022149x18000858.

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AbstractIn this study, we analysed and compared the whole parasite community from the fish Notothenia rossii and Notothenia coriiceps collected from Fildes Bay at King George Island, Antarctica, during January–February 2017 in a field campaign supported by the Chilean Antarctic Institute. The fish samples collected were 45 specimens of N. rossii and 22 of N. coriiceps, with total lengths averaging 29.7 ± 5.3 cm and 32.5 ± 3.2 cm, respectively. Fish were dissected to collect their internal and external parasites. All the fish were parasitized; 13 taxa were found in N. rossii and 12 taxa in N. coriiceps. Acanthocephalans, mainly Metacanthocephalus johnstoni and Aspersentis megarhynchus, were the most abundant and prevalent parasites in both fish species. The abundance and richness of the parasite infracommunity increased with the host body length only in N. rossii. Twelve parasitic taxa were shared by both notothen species. Abundance and prevalence of parasitic taxa, as well as the average richness and abundance of the parasite infracommunities were mostly similar between the two fish species. Parasite compositions of N. coriiceps reported in published studies from King George Island were relatively comparable to our sample. We concluded that the two congeneric and sympatric fish species had highly similar parasite communities, which indicates that they use resources in a similar way, thus allowing them to become parasitized with the same parasitic species and in the same abundances. All parasites recorded in this study have been found in several other fish species; therefore, parasites from notothens are considered to be generalists.
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POULIN, ROBERT, and HASEEB S. RANDHAWA. "Evolution of parasitism along convergent lines: from ecology to genomics." Parasitology 142, S1 (November 11, 2013): S6—S15. http://dx.doi.org/10.1017/s0031182013001674.

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SUMMARYFrom hundreds of independent transitions from a free-living existence to a parasitic mode of life, separate parasite lineages have converged over evolutionary time to share traits and exploit their hosts in similar ways. Here, we first summarize the evidence that, at a phenotypic level, eukaryotic parasite lineages have all converged toward only six general parasitic strategies: parasitoid, parasitic castrator, directly transmitted parasite, trophically transmitted parasite, vector-transmitted parasite or micropredator. We argue that these strategies represent adaptive peaks, with the similarities among unrelated taxa within any strategy extending to all basic aspects of host exploitation and transmission among hosts and transcending phylogenetic boundaries. Then, we extend our examination of convergent patterns by looking at the evolution of parasite genomes. Despite the limited taxonomic coverage of sequenced parasite genomes currently available, we find some evidence of parallel evolution among unrelated parasite taxa with respect to genome reduction or compaction, and gene losses or gains. Matching such changes in parasite genomes with the broad phenotypic traits that define the convergence of parasites toward only six strategies of host exploitation is not possible at present. Nevertheless, as more parasite genomes become available, we may be able to detect clear trends in the evolution of parasitic genome architectures representing true convergent adaptive peaks, the genomic equivalents of the phenotypic strategies used by all parasites.
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Jerônimo, GT, SB Pádua, D. Bampi, ELT Gonçalves, P. Garcia, MM Ishikawa, and ML Martins. "Haematological and histopathological analysis in South American fish Piaractus mesopotamicus parasitized by monogenean (Dactylogyridae)." Brazilian Journal of Biology 74, no. 4 (November 2014): 1000–1006. http://dx.doi.org/10.1590/1519-6984.09513.

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Monogeneans are the parasites mostly found on the body surface and gills of fish and can cause large losses in farmed fish. Some studies demonstrate elevated parasitic levels causing hematological alterations. But few of them relate the effects of parasitism on the hematology and histopathology of native freshwater farmed fish. This study evaluated the host-parasite relationship in pacu (Piaractus mesopotamicus) parasitized by the monogenean Anacanthorus penilabiatus. Hematological and parasitological assessments were obtained in 60 fish captured in a fish farm located in Dourados, State of Mato Grosso do Sul, Central Brazil. Fish were analyzed in different categories of parasite number: class I (n=13; 0-200 parasites), class II (n=17; 201-1200 parasites); class III (n=7; 1201-2200 parasites); and class IV (n=23; more than 2200 parasites per host). The highest levels of parasitism caused significant decrease (p<0.05) in the hematocrit, red blood cells (RBC), mean hemoglobin concentration (MCHC) and basophils number. Thrombocytes, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), monocytes, eosinophils, neutrophils and LG-PAS did not present significant difference among the parasitic levels. In contrast, increased number of total leukocytes and lymphocytes were found in highly-parasitized fish. A positive linear correlation (p<0.01) was found between the amount of parasites and fish weight. Histopathology revealed severe hyperplasia, sub-epithelial edema, fusion of the secondary lamellae, focal and multifocal necrosis in highly parasitized fish.
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Setiati, Yati, Neneng Hayatul Mutmainah, and M. Subandi. "Efektivitas Jumlah Telur Corcyra cephalonica Terparasitasi Trichogramma sp. terhadap Persentase Telur yang Terparasit dan Jumlah Larva Penggerek Batang Tebu Bergaris (Chilo sacchariphagus)." Jurnal Agro 3, no. 1 (July 31, 2016): 43–48. http://dx.doi.org/10.15575/811.

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Hama penggerek batang merupakan hama yang paling penting pada tanaman tebu. Penelitian ini bertujuan untuk mengetahui pengaruh telur Corcyra cephalonica yang terparasitasi Trichogramma sp. terhadap hama penggerek batang tebu bergaris (Chilo sacchariphagus). Serta untuk mengetahui jumlah telur Corcyra cephalonica yang terparasitasi Trichogramma sp. yang paling efektif terhadap pengendalian hama penggerek batang tebu bergaris (Chilo sacchariphagus) Penelitian ini dilaksanakan di PT. PG Rajawali II Unit Puslit Agro (pusat penelitian Agronomi) Desa Sumber Jatitujuh-Majalengka, dari bulan April sampai bulan Juni 2015. Hasil penelitian menunjukan bahwa pada parasitasi penggerek batang tebu bergaris (Chilo saccaripagus) perlakuan 5 pias (750 butir telur Trichogamma sp.) memiliki jumlah larva terendah rata-rata 4,33 larva dengan persentasi telur yang terparasit 92,23%. Stem borer is the most important pest in sugarcane. This study aimed to determine the effect of Corcyra cephalonica eggs which were parasited by Trichogramma sp. On striped cane stem borer (Chilo sacchariphagus). As well as to determine the number of eggs of Corcyra cephalonica parasited by Trichogramma sp. The research was conducted at PT. PG Rajawali II Unit Center for Agro (Agronomy research centers) Sumber Jatitujuh Village Majalengka ,from April to June 2015. The result showed that in parasitism of striped cane stem borer (Chilo saccaripagus) treatment of 5 “pias” (750 eggs of Trichogamma sp.) had the lowest number of larvae on average 4,33 larvae with parasited eggs percentage of 92,23%.
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Hart, B. L. "Behavioural defense against parasites: interaction with parasite invasiveness." Parasitology 109, S1 (1994): S139—S151. http://dx.doi.org/10.1017/s0031182000085140.

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SUMMARYBehavioural patterns involved in avoiding, repelling, or removing parasites allow mammalian hosts to defend themselves from an array of parasites that threaten the host's fitness in the natural world. Some examples of behavioural defenses and the presumed target parasites are: grooming to remove ticks, grouping to reduce attack rate of biting flies, fly repelling movements to reduce parasitic flies, and selective grazing to reduce intake of faecal-borne parasites. These behavioural defenses are discussed with regard to effectiveness in controlling the target parasites. Parasites have sometimes evolved behavioural strategies of evading, penetrating or disabling these behavioural defenses. These parasite behavioural strategies, though less studied, are discussed. Also discussed is the possibility that host behavioural patterns that may defend against one parasite may be exploited by a different type of parasite to facilitate its own transmission. The interplay between host defensive strategies, the cost versus the effectiveness of such strategies, and a parasite's evasion or exploitation of such strategies, may be useful in understanding some aspects of host-parasite dynamics in nature.
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Martínez del Río, Carlos, and Stephen H. Bullock. "Parasitismo floral por abejas sociales (Meliponinae; Apidae) en el árbol quiropterófilo Crescentia alata (Bignoniaceae)." Botanical Sciences, no. 50 (April 10, 2017): 69. http://dx.doi.org/10.17129/botsci.1377.

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The flowers of Crescentia alata are probably pollinated by bats (Glossophaga soricina) and parasited by two especies of social bees Partamona bilineata and Trigona fulviventris. P. bilineata collects pollen and nectar whereas T. fulviventris collects only pollen. In four trees in wich pollen robbery was measured it was found that the intensity of robbery was higher in the tree in wich anthers dehisced earlier than in thos wich dehisced later. Bees removed about 40% of the total production of the nectar before the arrival of bats. Bees act as plant parasites and keep an amensalist relationship with bats. We suggest that bat pollinated plants may be a result of the interaction not only with pollinators but also with pollen and nectar robbing bees.
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Dissertations / Theses on the topic "Parasited"

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PEREIRA, Aldenice Nazar? Silva. "A comunidade parasit?ria da Trilha, Mullus argentinae Hubbs & Marini, 1933 (Perciformes, Mullidae): aspectos taxon?micos e seu uso para a discrimina??o de estoques populacionais." Universidade Federal Rural do Rio de Janeiro, 2012. https://tede.ufrrj.br/jspui/handle/jspui/1691.

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CNPq
Previous studies of the parasitic fauna of the goatfish (Mullus argentinae) from Brazil and Argentina show a significant diversity of species and suggest that this host feature is a good model to test hypotheses for the distribution of parasites and their use as biological indicators of the presence of stocks or different populations of hosts and allowing information relevant to good management of this species. The purpose of this work was to study the composition and structure of parasites communities of the goatfish (M. argentinae), assess whether the temporal variation influences the parasitic fauna and verify its use as a tool for discrimination of possible stocks of this species throughout its geographical distribution, which includes the coast of Brazil and Argentina. During the period of March 2010 to July 2011, were collected 430 specimens of M. argentinae of three locations along the Brazilian coast and an area of the coast of Argentina. In statistics, the quantitative approach was made at the level of parasitic infrapopulations and ecological descriptors were calculated for each parasite species in each area. Species with prevalence >10% in at least one of the localities were analyzed in the ? ? (Chi-square) to test significant differences in prevalence between locations. ANOVA and a Tukey test a posteriori were performed to test for unequal samples. It was analyzed similarity indices of Jaccard and qualitative Bray-Curtis and quantitative and multivariate analysis. Discriminate analysis was used to detect differences between locations and identify species of parasites responsible for these differences.
Estudos pr?vios da fauna parasit?ria da Trilha (Mullus argentinae) em amostras provenientes do Brasil e da Argentina mostram uma significativa diversidade de esp?cies e sugerem que este recurso ictiol?gico ? um bom modelo para testar hip?teses de distribui??o de parasitos e seu uso como indicadores biol?gicos da presen?a de estoques ou de popula??es diferentes de hospedeiros e que permitam obter informa??es relevantes para um adequado manejo desta esp?cie. O prop?sito deste trabalho foi estudar a composi??o e estrutura das comunidades parasit?rias da Trilha (M. argentinae), avaliar se a varia??o temporal da amostragem influencia na fauna parasit?ria e verificar seu uso como ferramenta para a discrimina??o de poss?veis estoques desta esp?cie ao longo da sua distribui??o geogr?fica, que inclui o litoral do Brasil e da Argentina. Durante o per?odo de mar?o de 2010 a julho de 2011, foram coletados um total de 430 esp?cimes de M. argentinae de tr?s localidades do litoral brasileiro (Rio de Janeiro, Santa Catarina e Rio Grande do Sul) e de uma localidade do litoral da Argentina (Mar Del Plata). A abordagem quantitativa foi feita em n?vel de infrapopula??es parasit?rias, sendo calculados os descritores quantitativos, para cada esp?cie de parasito de cada ?rea estudada. Para as esp?cies com preval?ncia >10% foram feitas an?lises de ?? (qui-quadrado) para testar diferen?as significantivas de preval?ncia entre localidades. ANOVA e um teste Tukey a posteriori foram feitos para testar se existe diferen?a entre grupos. Foram utilizados tamb?m os ?ndices de similaridade qualitativa de Jaccard e quantitativa de Bray-Curtis. Na an?lise multivariada, primeiramente desenvolveu-se uma an?lise de agrupamentos, que agrupa os parasitos pela abund?ncia de esp?cies existentes nas localidades. A An?lise discriminante foi usada para detectar diferen?as entre localidades e entre diferentes ?pocas de coleta e identificar esp?cies de parasitos respons?veis por estas diferen?as.
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Pereira, Felipe Bisaggio. "Estrutura da comunidade de helmintos associados ao lagarto Tropidurus torquatus (Squamata: Tropiduridae) em uma área de afloramento rochoso no distrito de Toledos, Juiz de Fora, MG." Universidade Federal de Juiz de Fora (UFJF), 2010. https://repositorio.ufjf.br/jspui/handle/ufjf/3017.

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CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
A comunidade parasitária do lagarto Tropidurus torquatus em uma área de campo rupestre localizada no estado de Minas Gerais, sudeste do Brasil, foi estudada. Dos 110 hospedeiros analisados, 92 (83,6%) estavam infectados. Foram encontradas cinco espécies de helmintos, três de nematóide: Physaloptera lutzi, Parapharyngodon sp. e Oswaldofilaria sp., uma espécie de cestóide e um cistacanto não identificados. Apenas as espécies de nematóides apresentaram dados suficientes para analises ecológicas, sendo P. lutzi a espécie mais prevalente (67,3%) e com maior intensidade parasitária (4,86±4,85). Somente para Oswaldofilaria sp. foram encontradas diferenças significativas na prevalência e intensidade parasitária entre hospedeiros fêmeas e machos, esses últimos apresentando os maiores valores. A intensidade parasitária total e de P. lutzi também diferiram entre os sexos de hospedeiros com machos apresentando os maiores valores. O tamanho corporal do hospedeiro correlacionou-se de forma positiva com a intensidade de infecção de todas as espécies de nematóides. A sazonalidade local não influenciou de forma significativa a estrutura da comunidade componente de parasitos estudada. Aspectos do hospedeiro como dieta, dimorfismo sexual e comportamento (territorialiasmo e forrageamento) representaram importantes fatores na determinação da estrutura dessa comunidade de helmintos. De maneira geral, a comunidade parasitária apresentou baixa riqueza de espécies e um caráter não interativo, características comuns em comunidades parasitárias de répteis como hospedeiros.
The helminth community of the lizard Tropidurus torquatus from a rocky outcrop located in Minas Gerais state, southeast Brazil, was studied. Ninety two of the one hundred ten individuals examined (83,6%) harbored helminths. A total of five helminth species were found, tree nematodes: Physaloptera lutzi, Parapharyngodon sp. and Oswaldofilaria sp., one cestode species and one acanthocaphalan cystacanth not identified. Only nematode species had sufficient data to perform ecological analysis with Physaloptera lutzi showing the highest prevalence (67,3%) and mean intensity (4,86±4,85). Prevalence and intensity of infection between males and females hosts differed only for Oswaldofilaria sp., with males showing the highest values. Total and P. lutzi intensity of infection were different among males and females hosts, with males showing the highest values. The host body size was positively related to intensity of infection for all nematode species. Local seasonality had no influence in the helminth community structure. Host diet, sexual dimorphism and behavior (territorialism, forage strategy) represented important factors in the structuring of this parasite community. In general lines, the helminth community was species poor and non interactive, representing a typical community structure found in herps hosts.
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Ferté, Hubert. "Les nématodes parasites du tube digestif du chevreuil (Capreolus capreolus L. 1758) : à propos d'une enquête réalisée dans le nord-est de la France." Tours, 1987. http://www.theses.fr/1987TOUR3805.

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Schneider, Maria Victoria. "Modes de reproduction chez le parasitoi͏̈de solitaire Venturia canesces." Lyon 1, 2003. http://www.theses.fr/2003LYO10071.

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Venturia canescens, un parasitoi͏̈de ichneumonidé de chenilles de piralidés, a deux modes de reproduction : arrhénotoque, (mâles haploi͏̈des et femelles diploi͏̈des)) et thélytoque (des femelles vierges engendrent des filles diploi͏̈des). Cette thélytoquie n'est pas l'effet de bactéries symbiotiques. Dans le Sud de la France, les deux modes de reproduction coexistent en sympatrie. La thèse traite des questions soulevées par cette coexistence. Une étude de la distribution géographique et une analyse moléculaire des populations, ont montré l'existence d'un clone thélytoque très répandu. Cependant quelques individus thélytoques sont génétiquement très proches des individus arrhénotoques. Une importante partie de la variabilité chez les thélytoques est due à un flux génique à partir de mâles arrhénotoques. Pour mieux comprendre la coexistence des deux modes de reproduction, différents traits d'histoire de vie et compromis génétiques reflétants des différentes pressions de sélection ont été étudiés.
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Grenier, Simon. "Biologie et physiologie des relations hôtes-parasitoïdes chez 3 tachinaires (Diptera, Tachinidae) d'intérêt agronomique : développement en milieux artificiels : lutte biologique." Lyon 1, 1986. http://www.theses.fr/1986LYO10004.

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Houngbédji, Tossimidé. "Rhamphicarpa fistulosa : infestation dans les bas-fonds rizicoles de la Région des Savanes (Togo) et étude des interactions hôte-parasite." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS455/document.

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Une des contraintes biotiques majeures de la riziculture de bas-fond au nord du Togo est l’adventice parasite Rhamphicarpa fistulosa (Hochst.) Benth. Afin d’évaluer les options stratégiques pour contrôler efficacement R. fistulosa, notre étude a été conduite avec comme principaux objectifs : 1) l’identification de la répartition de R. fistulosa et l’étude des facteurs qui favorisent son infestation, 2) l’étude de l’impact des niveaux d’infestation sur la flore adventice du riz, et 3) la caractérisation des interactions hôte-parasite et de leurs impacts sur le développement de l’hôte et les performances reproductives du parasite. A l’issu des prospections de terrain, les plus fortes infestations ont été retrouvées sur des sols majoritairement à texture sableuse et très pauvres en matière organique. Une flore adventice très diversifiée a été retrouvée en présence de R. fistulosa, certaines adventices pouvant être parasitées et constituer éventuellement un réservoir pour accroître le stock semencier du parasite. En conditions contrôlées, R. fistulosa se développe et se reproduit aussi bien sur le riz que sur la tomate, alors que le soja retarde la reproduction du parasite. La germination des graines de R. fistulosa est maximale en présence de graines de plantes cultivées ou adventices. Les graines nouvellement récoltées ont une dormance de plus de six mois, mais leur germination a été stimulée par la présence de phytohormones. En conclusion, les meilleures stratégies de lutte doivent impliquer le contrôle par les semis tardifs, les rotations culturales avec les légumineuses comme le soja, l’arachide ou le niébé, et les cultures maraîchères
Main biotic constraints to rain-fed lowland rice cultivation in northern Togo include the parasitic weed Rhamphicarpa fistulosa (Hochst.) Benth. In order to evaluate efficient strategies to control R. fistulosa, our study was performed taking into account the following main objectives: 1) Identification of the distribution of R. fistulosa and study of the factors favouring its infestation, 2) Study of the impacts of infestation levels on rice weed communities, and 3) Characterization of the host-parasite interactions and their impacts on the host development and the parasite reproduction. Following fields investigations, highest infestations were observed on sandy soils with low levels of organic matter.In addition, weed flora found in the presence of R. fistulosa was much diversified and some weeds were found to been parasitized and could possibly constitute reservoirs to increase the seed stock of the parasite. In controlled experiments, R. fistulosa grown and reproduced better on rice and tomato crops, than on soybean which delayed the reproduction of the parasite. Germination of R. fistulosa seeds was stimulated in presence of cultivated crops or weeds. New collected seeds shown six months dormancy but their germination was stimulated in presence of phytohormones. In conclusion, the best strategies to control R. fistulosa must include delayed sowing, crop rotation with leguminous species (i.e. soybean, peanut or cowpea) and vegetable cropsKeywords: Rhamphicarpa fistulosa, rice, lowland, parasitism, host-parasite interaction, weeds
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St, Vincent Chad Michael. "'Parasite single' women of Japan : 'parasites' or search for a new identity? /." Title page, contents and introduction only, 2002. http://web4.library.adelaide.edu.au/theses/09AR/09ars7749.pdf.

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Goodhead, Ian Barry. "Genomic approaches to understanding host resistance and parasite virulence in Trypanosoma parasites." Thesis, University of Liverpool, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.570185.

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Roughly one-third of cattle in sub-Saharan Africa are at risk of contracting "Nagana" - a disease caused by Trypanosoma parasites similar to those that cause human "Sleeping Sickness". Laboratory mice can also be infected by trypanosomes, and different mouse breeds show varying levels of susceptibility to infection, similar to what is seen between breeds of cattle. We have applied next-generation technologies to identify shared polymorphisms between susceptible mice, and annotated these for potential function alongside publicly available SNP data sets. By so doing, short lists of genes at the QTL have been created to aid functional testing in cattle. This includes two promising 'candidate genes': Pram1 and Cd244, which can now be tested to confirm their effect on response to trypanosome infection. The human-infective parasite Trypanosoma brucei rhodesiense generally causes an acute form of "sleeping sickness" across Eastern Africa, compared to the more chronic T b. gambiense infections found in Western Africa. The 1988-1993 Ugandan T b. rhodesiense outbreak constituted infections by parasites with differences in their clinical manifestation. Two such sub types, termed Busoga 17 (B 17) and Zambesi 310 (Z31O), caused more acute, and more chronic infections, respectively. In order to investigate whether the major QTL that regulates survival in T congolense infections (Tir 1) does so in a similar manner in T b. rhodesiense, mice congenic for the C5 7BL/ 6 allele (Tirl CC) at Tir 1 were infected with Z310 and B 1 7 zymodeme T b. rhodesiense parasites. Whilst Tir 1 was not found to have a significant effect on survival, all mice had a significantly shorter mean survival time when infected with B 17 (~1O. 7 days) than those infected with Z31 0 (~15.6 days), in line with previous observations of human infections. In order to identify genetic loci that might underlie differences in virulence between T b. rhodesiense zymodemes, cluster analysis was performed on the microsatellite genotypes of 31 T b. rhodesiense isolates that represented nine different zymodemes. Despite STRUCTURE identifying three population clusters, the Z310 and B 17 parasite populations could not be distinguished, suggesting that either multiple genes control virulence, that there is gene flow between similar parasite populations, or that the microsatellite genotyping is insufficient to distinguish between different parasite populations. Finally, we present the first whole-genome sequences of T b. rhodesiense field isolates, one each of Z310 and B 1 7. Genomic analysis of east African T b. rhodesiense and west African T b. gambiense has suggested that recombination may be occurring between them. SNP genotyping of 32 T b. rhodesiense isolates showed that differences in clinical phenotypes were associated with differences in alleles on chromosome 8. The genome sequence suggests that chromosome 8 is heterozygous for alleles of west African origin in the more virulent strain, suggesting that recombination may be associated with parasite virulence. This suggests that the human subspecies of T brucei are not genetically distinct, which has major implications for the control of the parasite, the spread of drug resistance and understanding the variation in virulence and the emergence of human infectivity. Further genetic analysis of T b. brucei populations from Western, central and Eastern Africa may be necessary to ascertain whether recombination is occurring directly between human-infective subspecies, or in the underlying animal-infective population.
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Isomursu, M. (Marja). "Host–parasite interactions of boreal forest grouse and their intestinal helminth parasites." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526203645.

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Abstract Parasites are an inseparable part of the life of wild birds. They may cause morbidity, mortality or reduction in fecundity. Parasite distribution in hosts is typically not uniform and many host factors (e.g. age) may affect the pattern of distribution. Under certain conditions, parasites even have the potential to regulate the host population. The grouse species of Finnish forests — the capercaillie Tetrao urogallus , the black grouse Lyrurus tetrix and the hazel grouse Tetrastes bonasia — harbour several species of intestinal helminth parasites. The populations have fluctuated in cyclic manner but the mechanisms behind the cycles are largely unknown. I studied the interactions of forest grouse and their intestinal helminth parasites by using intestinal samples collected by hunters in five game management districts during eight years (1995–2002). The most common parasite species in the samples was the nematode Ascaridia compar. Also, three species of cestodes (Skrjabinia cesticillus, Paroniella urogalli and Hymenolepis sp.) were found. Large size, male gender and age over 1 year were connected with an increased probability and intensity of A. compar infection. Juvenile grouse were commonly infected with cestodes while in adults infections were quite rare. The influence of inbreeding on the susceptibility to parasite infections was studied in the capercaillie by analysing microsatellite heterozygosity. The less heterozygous birds were more likely to be infected with A. compar and were more intensely infected suggesting negative influence of inbreeding on parasite resistance. An indirect negative effect of parasites was found by comparing bags hunted with a trained dog or without a dog. Grouse infected by cestodes were significantly more common in the dog-assisted bag. Thus, cestode infection seemed to make grouse more vulnerable to canine predation. The interaction between grouse population dynamics and parasites was studied by analyzing the grouse densities obtained from annual wildlife counts and parasite indices. A. compar was most common and most abundant in the years of grouse population decline. The grouse population growth rate was negatively correlated with the annual mean abundance of A. compar. Relative survival but not breeding success decreased as the abundance of A. compar increased. The findings suggest that A. compar influences the dynamics of Finnish grouse even though regular cyclic dynamics are no longer evident
Tiivistelmä Loiset kuuluvat erottamattomana osana luonnonvaraisten lintujen elämään. Ne voivat aiheuttaa sairautta, kuolleisuutta tai hedelmällisyyden alentumista. Tyypillisesti loiset ovat levinneet isäntäpopulaatioon epätasaisesti ja monet isännän ominaisuudet (esim. ikä) vaikuttavat levinneisyyteen. Tietyissä oloissa loiset voivat jopa säädellä isäntäpopulaatiotaan. Suomalaiset metsäkanalinnut — metso Tetrao urogallus, teeri Lyrurus tetrix ja pyy Tetrastes bonasia — ovat useiden suolistoloismatolajien isäntiä. Metsäkanapopulaatiot ovat vaihdelleet syklisesti, mutta syklejä aiheuttavat mekanismit ovat yhä tuntemattomia. Tutkin metsäkanalintujen ja niiden suolistoloisten välisiä vuorovaikutuksia käyttäen metsästäjien vuosina 1995–2002 viidestä eri riistanhoitopiiristä keräämiä suolistonäytteitä. Yleisin loislaji näytteissä oli kanalintusuolinkainen, Ascaridia compar. Myös kolme heisimatolajia (Skrjabinia cesticillus, Paroniella urogalli ja Hymenolepis sp.) todettiin. Suuri koko, koirassukupuoli ja yli yhden vuoden ikä olivat yhteydessä suurempaan kanalintusuolinkaistartunnan todennäköisyyteen ja voimakkuuteen. Nuorilla (alle 1 v.) linnuilla heisimadot olivat yleisiä, kun taas aikuisilla tartunnat olivat varsin harvinaisia. Sisäsiittoisuuden vaikutusta loistartuntaherkkyyteen tutkittiin metsolla mikrosatelliittiheterotsygotian perusteella. Vähemmän heterotsygoottiset metsot olivat todennäköisemmin ja voimakkaammin suolinkaisten infektoimia, mikä viittaa sisäsiittoisuuden negatiiviseen vaikutukseen loisten vastustuskykyyn. Loisten epäsuora haitallinen vaikutus havaittiin, kun verrattiin koiran kanssa ja ilman koiraa metsästettyä lintusaalista. Heisimadot olivat selvästi yleisempiä linnuilla, jotka oli metsästetty koiran kanssa kuin ilman koiraa metsästetyillä. Heisimatotartunta näytti siis altistavan metsäkanoja koiraeläinten saalistukselle. Metsäkanalintu- ja loispopulaatioiden välistä vuorovaikutusta tutkittiin analysoimalla vuosittaisia metsäkanatiheyksiä ja loisten runsautta. Kanalintusuolinkainen oli yleisimmillään ja runsaimmillaan metsäkanatiheyden laskuvuosina. Metsäkanapopulaation vuosittainen kasvuvauhti korreloi negatiivisesti kanalintusuolinkaisen vuosittaisen runsauden kanssa. Suhteellinen elossasäilyvyys laski kanalintusuolinkaisen runsauden lisääntyessä, mutta lisääntymistuloksen suhteen ei ollut samaa ilmiötä. Löydökset viittaavat siihen, että kanalintusuolinkaisella on vaikutusta suomalaisten metsäkanalintukantojen vaihteluihin, vaikka syklisiä kannanvaihteluja ei enää havaitakaan
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Oliveira, Ana Carolina Santos. "Mecanismos parasitários de escape ao sistema imunológico." Master's thesis, [s.n.], 2011. http://hdl.handle.net/10284/2486.

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Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Ciências Farmacêuticas.
A evasão ao sistema imunulógico, por parte dos parasitas, está actualmente omnipresente e envolve uma série de mecanismos moleculares, que reflectem a evolução, reprodução e crescimento parasitário. Existem uma série de formas e processos de escape parasitário permitindo com que estes garantam, simultaneamente, a sua sobrevivência e a do hospedeiro. A co-evolução convergente entre hospedeiro e parasita sustêm a base destes mecanismos que se baseiam na manipulação dos processos que fazem parte e regulam a resposta imunitária e o normal funcionamento das células de defesa do hospedeiro, ficando a resposta inata e adaptativa vulnerável à acção parasitária. O fenómeno de evasão parasitária foi descoberto há cerca de 100 anos, por aquele que é considerado o pai da Imunologia, Paul Erlich; este durante alguns dos seus estudos observou “o desaparecimento dos receptores” característicos dos anticorpos do sistema imune, em Trypanossomas africanos. A partir daí as funções genéticas, alterações de variantes antigénicas, moléculas supressoras do sistema imune têm sido amplamente descobertas e estudadas. A importância do conhecimento das adaptações parasitárias é fundamental para o desenvolvimento de terapeuticas na área da medicina, imunologia, parasitologia e farmacologia visto que destas se obtêm dados fundamentais sobre a interecção entre estes microorganismos e sobre as patologias que podem causar. Desta feita este trabalho aborda, então esses mecanismos, explicando ainda de forma sintética a constituição do sistema imune de forma a direccionar facilmente e localizar o centro de ataque parasitário, demonstrando a forma ágil e habilidosa com que estes seres conseguem ludibriar um complexo sistema como é o sistema imunitário de um indivíduo imunocompetente. Evasion of immunologic system, by parasites, is now ubiquitous and involves several molecular mechanisms that reflect the evolution, parasite growth and its reproduction. There are a number of forms and escape processes which have been adopted by parasits ensuring survival of both parasite and host. The convergent co-evolution of host and parasite is the basis of these mechanisms that rely on manipulation of the processes which are part of the immune response and regulate it, as well as, the normal functioning of host defense cells, leaving the innate and adaptive response vulnerable to parasite activity. The phenomenon of parasite evasion was discovered about 100 years ago, by one considered the father of Immunology, Paul Ehrlich. This has been found during some of his studies where disappearance of the antibody receptors characteristic of the immune system of the African trypanosome, was observed. Since then, gene functions, changes in antigenic variants and suppressing molecules of immune system have been extensively discovered and studied. The importance of the knowledge of parasitic adaptations is crucial for the development of new therapeutics in medicine, immunology, parasitology and pharmacology since these data reflect the interaction between microorganisms and the immune system and also related diseases. With this dissertation we will have an overview of these mechanisms and a brief explanation of the immune system in order to easily locate the center of parasitic attack, demonstrating how agile and skilled these living beings can evade a complex system like the immune system of immunocompetent individuals.
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Books on the topic "Parasited"

1

McDonald, Malcolm Edwin. Key to Acanthocephala reported in waterfowl. Washington, D.C: U.S. Dept. of the Interior, Fish and Wildlife Service, 1988.

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McDonald, Malcolm Edwin. Key to Acanthocephala reported in waterfowl. Washington, D.C: U.S. Dept. of the Interior, Fish and Wildlife Service, 1988.

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Zimmer, Carl. Parasite rex: Inside the bizarre world of nature's most dangerous creatures. New York: Free Press, 2000.

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Zimmer, Carl. Parasite rex: Inside the bizarre world of nature's most dangerous creatures. New York: Free Press, 2000.

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Zimmer, Carl. Parasite rex: Inside the bizarre world of nature's most dangerous creatures. New York: Simon & Schuster, 2001.

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Sugoni͡aev, E. S. Host-parasite relations in insects: As they relate to eulecanium caraganae borchs, and its parasite Encyrtus infidus Rossi. Karachi, Pakistan: Published for the OICD, ARS, U.S. Dept. of Agriculture by G. Saad, 1989.

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Heelan, Judith Stephenson. Essentials of human parasitology. Albany, N.Y: Delmar Publishers, 2002.

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J, Pitt Sarah, ed. Parasitology: An integrated approach. Chichester, West Sussex: John Wiley & Sons, 2012.

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Poulin, Robert. Evolutionary ecology of parasites. 2nd ed. Princeton, N.J: Princeton University Press, 2007.

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Poulin, Robert. Evolutionary ecology of parasites: From individuals to communities. London: Chapman & Hall, 1998.

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Book chapters on the topic "Parasited"

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Presterl, Elisabeth, Magda Diab-El Schahawi, Luigi Segagni Lusignani, Helga Paula, and Jacqui S. Reilly. "Parasites and Parasitic Diseases." In Basic Microbiology and Infection Control for Midwives, 161–70. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-02026-2_18.

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Hinchliffe, Arnold P. "Parasites or Sub-Parasites." In Volpone, 33–38. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-06536-3_5.

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Müller, H. E. "Parasiten." In Die Infektionserreger des Menschen, 243–356. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73587-5_4.

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Miksits, Klaus, and Helmut Hahn. "Parasiten." In Springer-Lehrbuch, 229–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-98001-5_7.

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Cerullo, Marcelo. "Parasites." In Encyclopedia of Ophthalmology, 1–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-35951-4_879-1.

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Olano, Juan P. "Parasites." In Molecular Pathology Library, 442–56. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-72430-0_42.

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Suh, Kathryn N., and Jay S. Keystone. "Parasites." In Community-Acquired Pneumonia, 885–906. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/0-306-46834-4_59.

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Yang, William N. "PARASITES." In Physical and Biological Hazards of the Workplace, 471–99. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119276531.ch26.

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Theel, Elitza S., and Bobbi S. Pritt. "Parasites." In Diagnostic Microbiology of the Immunocompromised Host, 411–66. Washington, DC: ASM Press, 2016. http://dx.doi.org/10.1128/9781555819040.ch18.

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G. Ríos-Valencia, Diana, José Navarrete-Perea, Arturo Calderón-Gallegos, Jeannette Flores-Bautista, and Juan Pedro Laclette. "To Be or Not to Be a Tapeworm Parasite: That Is the Post-Genomic Question in Taenia solium Cysticercosis." In Current State of the Art in Cysticercosis and Neurocysticercosis [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97306.

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Cestode parasites rely on their host to obtain their nutrients. Elucidation of tapeworm genomes has shown a remarkable reduction in the coding of multiple enzymes, particularly those of anabolic pathways. Previous findings showed that 10–13% of the proteins found in the vesicular fluid of Taenia solium cysticerci are of host origin. Further proteomic characterization allowed identification of 4,259 different proteins including 891 of host origin in the parasite’s protein lysates. One explanation for this high abundance and diversity of host proteins in the parasite lysates is related to the functional exploitation of host proteins by cysticerci. Supporting this concept is the uptake of host haptoglobin and hemoglobin by the parasite, as a way to acquire iron. Surprisingly, internalized host proteins are minimally degraded by the parasite physiological machinery. Additional proteomic analysis demonstrated that these host proteins become part of the organic matrix of calcareous corpuscles; as 60–70% of the protein content are host proteins. In this review, a collection of available genomic and proteomic data for taeniid cestodes is assembled, the subject of the use and processing of host proteins is particularly addressed; a sketchy and unique cell physiological profile starts to emerge for these parasitic organisms.
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Conference papers on the topic "Parasited"

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Apolinário, Joelma Maria dos Santos da Silva. "LARVA MIGRANS CUTÂNEA E SEU ACOMPANHAMENTO FARMACOTERAPÊUTICO." In II Congresso Brasileiro de Ciências Farmacêuticas On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/771.

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Introdução: A Larva migrans Cutânea (LMC) também denominada dermatite pruriginosa, apresenta características cosmopolita, ocorrendo com mais incidência em países tropicais e subtropicais. Seu diagnóstico é clínico baseando-se não pela sintomatologia do paciente acometido pelas lesões cutâneas oriundas do parasito em questão e também do prurido que o mesmo causa. Os principais agentes etiológicos são larvas de Ancylostoma braziliense e A. caninun parasitos do intestino delgado de cães de gatos, a patologia pode acontecer também por outros gêneros de parasitas, mas esses dois acima citados são os mais frequentes. Objetivo: Enfatizar a importância do acompanhamento farmacoterapêutico no que diz respeito a transmissibilidade da Larva migrans bem como a atuação dos parâmetros clínicos e farmacológicos dos pacientes afetados pelo parasita. Material e Métodos: Estudo de caso do tipo exploratório descritivo com abordagem qualitativa através da revisão sistemática da literatura que possibilitou a construção de referencial teórico sobre assuntos que estão relacionados ao tema em questão. Resultados: Na sintomatologia descrita pelos indivíduos acometidos por esse parasito as partes do corpo frequentemente atingidas são aquelas que entram em maior contato com o solo: pés, nádegas, mãos, pernas e raramente boca, o momento da penetração pode passar despercebido, ou muitas vezes pode causar prurido, eritema há também nas lesões mais antigas a formação de crostas deixando assim um caminho ou linha escura que posteriormente desaparece. Conclusão: Desse modo podemos afirmar que o acompanhamento farmacoterapêutico destinado para o tratamento da LMC teve reposta satisfatória, no que diz respeito a sintomatologia clínica dos pacientes afetados, uma vez que as drogas utilizadas são bem eficazes e o albendazol, que corresponde a uma das substâncias mais comumente utilizadas, tem eficácia de pelo menos 97% no tratamento destes pacientes acometidos pela parasitose, seguido do mebendazol, com eficácia de 86%.
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Pennacchio, Francesco. "Honey bee-parasite immune suppression by parasites and pathogens." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.92904.

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Meira, Roberta Rodrigues. "PASSEANDO PELA INTERAÇÃO PARASITAS - MICRORGANISMOS E HOSPEDEIRO." In I Congresso Brasileiro de Parasitologia Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/686.

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Introdução: Parasitas e microrganismos se interagem, afirmando, num extremo, relações de cooperação recíproca, até relações conflituosas, na maioria das vezes patogênicas, no outro extremo. A coinfecção é de especial relevância porque as espécies de patógenos podem interagir no interior do hospedeiro, e as infecções decorrentes da interação ameaçam a saúde humana. Assim, é importante que as interações entre parasitas e microrganismos e deles com o hospedeiro e os seus mecanismos de defesa sejam estudados. Objetivo: Esta revisão tem como objetivo apresentar os dados científicos mais atuais sobre a interação molecular entre parasitas e microrganismos e as implicações desta sobre o hospedeiro. Material e métodos: Foi realizada uma busca na base de dados PubMed, Biblioteca Cochrane, Web of Science e Scopus, no período 2000 - 2020, utilizando os termos “interactions” “microorganisms”, “parasites”, “associations between parasites and microorganisms in humans” combinados entre si. Foram selecionados artigos de qualidade A das evidências. Foram incluídos estudos que abordassem interações entre parasitas e microrganismos no corpo humano, mas especialmente na pele, com ênfase em ácaros, bactérias e fungos, e doenças locais ou sistêmicas ocasionadas pela interação entre os mesmos. Resultados: Várias espécies de parasitas e microrganismos são conhecidos por serem patogênicos aos seres humanos. Tem sido observada regularmente associações potencialmente patogênicas entre parasitas e microrganismos, em um único hospedeiro. Vários modelos que abordam este problema forneceram previsões sobre como a associação e o conflito entre parasitas e microrganismos podem desencadear infecções múltiplas, que podem ter consequências gravíssimas se não forem tratadas adequadamente. Entretanto, ainda pouco se sabe sobre esse tipo de interação e, especialmente o seu impacto patogênico, especialmente na pele do hospedeiro humano. Conclusão: Portanto, uma melhor compreensão dos mecanismos responsáveis pela interação entre parasitas e microrganismos e deles com o hospedeiro pode contribuir para o desenvolvimento de alternativas terapêuticas direcionadas exclusivamente ao tratamento de doenças decorrentes de interações, cada vez mais difíceis de tratar, aliviando assim o transtorno da falta de medicamentos específicos e também da resistência antimicrobiana cada vez maior.
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Nogueira, Talita Pacheco, Rozineide Santana De Oliveira, Islaine Maria Aparecida Dos Santos Franceschi, Kédima Ferreira De Oliveira, and Rayane De Sousa Alves Castro. "INCIDÊNCIA DE ENTEROPARASITOSES EM ADULTOS NO BRASIL." In I Congresso Brasileiro de Parasitologia Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1962.

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Introdução: Parasitas intestinais é um dos maiores problema de saúde pública em todo o mundo e são responsáveis ​​pela alta incidência de crianças. Essas infecções podem causar alterações nas condições físicas e sociais e afetar diretamente a qualidade de vida dos portadores, principalmente das crianças. Objetivo: Determinar os parasitas intestinais mais comuns em adultos. Material e métodos: Foram realizadas pesquisas bibliográficas, feitas a partir de arquivos do SciELO, dados da Biblioteca Virtual de Saúde (BVS), IBGE e PUBMED. Utilizou-se como estratégias de busca os seguintes descritores: “parasitose em adultos”, “parasitos intestinais”, para combinar os termos em questão usou-se o booleano “AND”. Foram incluídos artigos no idioma português, estudos epidemiológicos dos últimos 4 anos e de assunto central as parasitoses intestinais em adultos. Após análise criteriosa dos títulos e resumos, selecionaram-se 13 artigos. Resultados: Através das pesquisas, foi perceptível que depois da dengue, as diarreias (23,6%) e as verminoses (17,2%) são as mais frequentes em todo o território brasileiro. Aproximadamente 1 bilhão de pessoas em todo o mundo estão infectadas com pelo menos um parasita intestinal, dos quais a Ascaris lumbricoides (9,9%), o Trichuris Trichiura (4,8%) e os Ancilostomídeos (2,6%) apresentam as maiores prevalências. Vale ressaltar que os parasitas intestinais são um imenso problema de saúde pública no Brasil, principalmente porque o país está em desenvolvimento, pois são facilmente encontrados tanto em áreas rurais como urbanas, além de serem facilmente diagnosticados em humanos, principalmente em adultos com baixa escolaridade e com vulnerabilidade econômica prejudicada. Conclusão: As enteroparasitoses são os maiores colaboradores para graves quadros de desnutrição, diarreia, anemias e diminuição do desenvolvimento físico, principalmente em crianças/adolescentes, sendo a ascaridíase, tricuríase e ancilostomíase as mais graves e prejudiciais parasitoses intestinais. Essas doenças enteroparasitárias servem como indicadores das condições e desenvolvimento ambiental, social e econômico de uma vasta população.
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Valente, AH, BM de Roode, AR Williams, HT Simonsen, and SM Thamsborg. "Parasites and plants – bioactive compounds with anti-parasitic effect from Cichorium intybus." In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3399717.

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Matias, Maria Da Glória De Lima, Edivan Lourenço Da Silva Júnior, Thaís Arielly Firmino De Souza Silva, Deise Ayara De Lyra Pereira, and Gleyka Dais De Melo Santos. "A LEISHMANIA TEGUMENTAR AMERICANA E A AÇÃO DO PARASITA NO SISTEMA IMUNE." In I Congresso Brasileiro de Imunologia On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/963.

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Introdução: A Leishmaniose tegumentar é uma doença parasitária, crônica e infecciosa, sendo uma das principais doenças negligenciadas. É caracterizada pela infecção ativa do protozoário do gênero Leishmania, caracterizada pelo desenvolvimento de lesões cutâneas, que podem produzir úlceras e deixar cicatrizes, gerando danos físicos e emocionais nos indivíduos infectados. Por sua fácil transmissão, que se dá através de insetos hematófagos, flebotomíneos, é importante o estudo das formas de ação do parasita no organismo humano, visando-se formas de tratamento mais eficientes, já que a doença atinge muitos indivíduos nas regiões endêmicas e não existem muitas alternativas para o tratamento. Objetivo: Analisar a infecção do parasita do gênero Leishmania no organismo e sua respectiva ação no sistema imune. Metodologia: Realizou-se uma pesquisa bibliográfica nas bases de dados científicos Scielo, PubMed, LILACS e Google Acadêmico, considerou-se publicações de artigos científicos dos últimos cinco anos. Resultados e discussão: O ciclo evolutivo da Leishmania apresenta duas formas: promastigota, encontrada no vetor, e amastigota, forma intracelular presente nos hospedeiros. Os glicanos, polissacarídeos, possuem importante papel durante o processo infeccioso, os glicoconjugados como glicoinositolfosfolipídios e proteofosfoglicanos tipo mucina estão envolvidos nas primeiras linhas de infecção por macrófagos. Já as glicoproteínas ancoradas por sitol exercem funções essenciais na interação parasita-hospedeiro. A metaloprotease modula uma ampla via de sinalização das células hospedeiras, facilita o escape do parasita da lise e inibe a resposta das células Natural Killers, protegendo os parasitas intracelulares. Outros fatores importantes no processo infeccioso são a proteína PSA-2, envolvida na ligação e invasão dos parasitas em macrófagos e o ácido siálico, utilizados pela Leishmania para estabelecer ligações com os receptores da membrana, presentes nas células hematopoiéticas, promovendo sua entrada nos macrófagos. Conclusão: A compreensão destas interações entre parasita e hospedeiro durante e após o processo infeccioso é importante para ter uma visão de como os protozoários implementam a infecção no organismo e burlam a resposta imune do hospedeiro. Desta forma, novos medicamentos que sejam direcionados a estes fatores, seriam fundamentais para a melhoria da eficácia, segurança do tratamento e diminuição dos riscos de resistência aos medicamentos, com a redução dos riscos de consequências nocivas advindas desta enfermidade.
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Silva, Ivamara De Morais, Lara Victória Pinheiro, Fernanda Bruna De Medeiros Freire, Tâmira Carminda Thomás De Araújo Figueiredo, and Vinícius Dutra Campelo. "OCORRÊNCIA DE NEUROCISTICERCOSE DECORRENTE DE INFECÇÃO PELO PARASITA TAENIA SOLIUM." In II Congresso Brasileiro de Saúde On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1506.

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Introdução: A neurocisticercose (NCC) consiste numa infecção ocasionada pela forma cística da tênia do porco, o helminto Taenia solium, cujos cisticercos (forma larval) podem se alojar em qualquer área do sistema nervoso central (SNC) do ser humano, levando a forma mais grave do complexo teníase/cisticercose, que está entre as principais doenças tropicais negligenciadas (DTN). Além da natureza multifatorial, a NCC se dissemina principalmente por meio da ingestão acidental de ovos do parasita em alimentos e água contaminados, além da autoinfecção em portadores da teníase. Logo, esse conjunto de fatores transforma a NCC em uma séria questão de saúde coletiva. Objetivos: Analisar o desenvolvimento das manifestações clínicas em pacientes diagnosticados com neurocisticercose em decorrência de infecção pela forma cística do parasita T. solium. Material e Métodos: Através da análise bibliográfica da literatura disponível, artigos publicados entre dezembro de 2010 e fevereiro de 2020 foram selecionados, utilizando as plataformas PUBMED, WEB OF SCIENCE, SCIELO e PERIÓDICOS CAPES como bases de dados, aplicando os descritores “Neurocisticercose”, “Taenia solium”, em inglês e português, operando critérios de inclusão e exclusão para seleção dos artigos utilizados. Resultados: A NCC desenvolve-se após a ingestão de ovos de T. solium, que em seguida eclodem e originam oncosferas (estágio larval) capazes de penetrar na parede intestinal. Logo após, os parasitos caem na corrente sanguínea, podendo a atingir vários órgãos distintos, assumindo assim a forma de cisticercos. Contudo, quando esse parasito alcança o SNC, a forma de cisticerco vesicular é mantida por um período de tempo que pode chegar a anos, o que leva a quadros inflamatórios discretos pelo mesmo intervalo temporal. Caso em um segundo momento uma resposta imune seja desencadeada, o cisticerco degenera-se e os sinais e sintomas da NCC manifestam-se, como convulsões e aumento da pressão intracraniana. Conclusão: A NCC consiste em uma condição parasitária multifatorial, resultante da infecção pela T. solium, a qual, em sua forma larvária, é responsável por desencadear diferentes apresentações clínicas severas. Em virtude disso, faz-se necessário ações da prevenção primária a terciária para prevenir e combater o avanço dos casos de NCC, bem como de outras teníases.
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Zhu, Haihong, and Wayne J. Book. "Active Shielding for a Novel Sensor." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42574.

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Active shield reduces the effects of both external noise/interference and parasitic capacitances of a coaxial cable. Therefore it is commonly used during the measurement of remote grounded capacitive sensors. Capacitively Coupled Resistive Sensing (CCRS) is a novel displacement measurement technology. The transduction principle of CCRS is the resistance change related to the position of the mobile member. The CCRS sensor utilizes the small capacitance between the signal pickup head and the resistive member to sense the voltage of a certain point on the resistive member. The signal is sent to the signal conditioner through a coaxial cable. Due to the parasite capacitance of the coaxial cable, the signal will be attenuated significantly. This paper introduces a method to reduce the attenuation using active shield scheme.
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Bashar, Md Khayrul. "Automated Classification of Malaria Parasite Stages Using Convolutional Neural Network-Classification of Life-cycle Stages of Malaria Parasites." In ICVISP 2019: 3rd International Conference on Vision, Image and Signal Processing. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3387168.3387185.

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Brace, Selina, Ian Barnes, and Mark JF Brown. "The bee and the parasite: using genomic data from museum collections to identify parasites affecting short-haired bumblebee reintroduction efforts." In 5th European Congress of Conservation Biology. Jyväskylä: Jyvaskyla University Open Science Centre, 2018. http://dx.doi.org/10.17011/conference/eccb2018/107703.

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Reports on the topic "Parasited"

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Jansen, Rob, Paul Syverson, and Nicholas J. Hopper. Throttling Tor Bandwidth Parasites. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada559183.

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Rose, Andrew, and Mark Spiegel. Offshore Financial Centers: Parasites or Symbionts? Cambridge, MA: National Bureau of Economic Research, February 2006. http://dx.doi.org/10.3386/w12044.

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Ungar, Beth L. Diagnosis of AIDS-Related Intestinal Parasites. Fort Belvoir, VA: Defense Technical Information Center, January 1989. http://dx.doi.org/10.21236/ada231241.

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Ungar, Beth L. Diagnosis of AIDS-Related Intestinal Parasites. Fort Belvoir, VA: Defense Technical Information Center, June 1990. http://dx.doi.org/10.21236/ada231242.

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Charissa de Bekker, Charissa de Bekker. How does a parasite create zombie-like behavior? Experiment, October 2013. http://dx.doi.org/10.18258/1490.

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Erika M. Bueno, Erika M. Bueno. ZomBees: Are parasites controlling the minds of honey bees? Experiment, April 2014. http://dx.doi.org/10.18258/2332.

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Sands, Matt. Parasitic Cavities Losses in SPEAR-2. Office of Scientific and Technical Information (OSTI), December 2016. http://dx.doi.org/10.2172/1344869.

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Nodiff, Edward A., Sankar Chattopadhyay, and Keiichi Tanabe. The Synthesis of Potential Parasitic Drugs. Fort Belvoir, VA: Defense Technical Information Center, May 1989. http://dx.doi.org/10.21236/adb135200.

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Slemrod, Joel, and John Wilson. Tax Competition With Parasitic Tax Havens. Cambridge, MA: National Bureau of Economic Research, May 2006. http://dx.doi.org/10.3386/w12225.

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Vaage, Jan. Comparative Aspects of Host-Parasite and Host-Tumor Relationships. Fort Belvoir, VA: Defense Technical Information Center, November 1989. http://dx.doi.org/10.21236/ada224495.

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