Academic literature on the topic 'Trypanosomose africaine'
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Journal articles on the topic "Trypanosomose africaine"
Bouteille, Bernard. "Trypanosomose humaine africaine." EMC - Biologie Médicale 1, no. 1 (January 2006): 1–4. http://dx.doi.org/10.1016/s2211-9698(06)76293-8.
Full textAsonganyi, Tazoacha, S. Suh, and M. D. Tetuh. "Prévalence des trypanosomoses des animaux domestiques dans le foyer de la maladie du sommeil de Fontem au Cameroun." Revue d’élevage et de médecine vétérinaire des pays tropicaux 43, no. 1 (January 1, 1990): 69–74. http://dx.doi.org/10.19182/remvt.8900.
Full textMahama, Charles I., H. A. Mohammed, Martin Abavana, I. Sidibé, A. Koné, and S. Geerts. "Mouches tsé-tsé et trypanosomoses au Ghana au vingtième siècle." Revue d’élevage et de médecine vétérinaire des pays tropicaux 56, no. 1-2 (January 1, 2003): 27. http://dx.doi.org/10.19182/remvt.9871.
Full textTalabani, Hana, and Thierry Ancelle. "Le diagnostic de la trypanosomose humaine africaine." Revue Francophone des Laboratoires 2011, no. 430 (March 2011): 41–46. http://dx.doi.org/10.1016/s1773-035x(11)70824-3.
Full textMahamat, Hassane H. "First PATTEC consultative workshop on strategies, technical advances and partnerships in tsetse and trypanosomosis management." Revue d’élevage et de médecine vétérinaire des pays tropicaux 68, no. 1 (November 19, 2015): 45. http://dx.doi.org/10.19182/remvt.20576.
Full textBoka, Ohoukou Marcel, Essehin Enock Jocelin Boka, Grégoire Yapi Yapi, Seïdinan Ibrahima Traoré, and Koffi Eric Kouamé. "Epidémiologie de la trypanosomose animale africaine chez les bovins dans le département du Korhogo (Côte d’Ivoire)." Revue d’élevage et de médecine vétérinaire des pays tropicaux 72, no. 2 (July 10, 2019): 83. http://dx.doi.org/10.19182/remvt.31748.
Full textCourtin, F., S. Dupont, D. G. Zeze, V. Jamonneau, B. Sane, B. Coulibaly, G. Cuny, and P. Solano. "Trypanosomose Humaine Africaine: transmission urbaine dans le foyer de Bonon (Cote d'Ivoire)." Tropical Medicine and International Health 10, no. 4 (April 2005): 340–46. http://dx.doi.org/10.1111/j.1365-3156.2005.01398.x.
Full textOnyeyili, P. A., G. O. Egwu, L. T. Zaria, and B. A. Orjiude. "Activité thérapeutique et prophylactique de la combinaison BerenilR et DL-alpha-difluorométhylornithine (DFMOR) contre l’infection à Trypanosoma brucei brucei chez la souris." Revue d’élevage et de médecine vétérinaire des pays tropicaux 44, no. 4 (April 1, 1991): 443–45. http://dx.doi.org/10.19182/remvt.9150.
Full textKohagne Tongué, L., R. Gounoue Kamkuimo, P. Mengue M’eyi, D. Kaba, F. J. Louis, and R. Mimpfoundi. "Enquête entomologique dans le foyer historique de trypanosomose humaine africaine de Bendjé (Gabon)." Parasite 18, no. 4 (November 2011): 303–9. http://dx.doi.org/10.1051/parasite/2011184303.
Full textKohagne Tongué, L., P. Mengue M’Eyi, R. Mimpfoundi, and F. J. Louis. "Régime alimentaire des glossines et diversité des espèces de trypanosomes dans un foyer actif de trypanosomose humaine africaine au Gabon." Bulletin de la Société de pathologie exotique 103, no. 4 (September 6, 2010): 264–71. http://dx.doi.org/10.1007/s13149-010-0062-z.
Full textDissertations / Theses on the topic "Trypanosomose africaine"
Dauchy, Frédéric-Antoine. "Immunopathologie et approche thérapeutique dans la Trypanosomose Africaine." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0390/document.
Full textTrypanosoma brucei gambiense, an extracellular eukaryotic flagellate parasite, is the main causative agent of Human African Trypanosomiasis (HAT), also known as sleeping sickness. Trypanosomes have developped efficient mechanisms to escape the host immune response. New therapeutic options are needed for patients with HAT. Sterol 14α-demethylase (CYP51) is a potential drug target but its essentiality has not been studied in T. brucei. In a first study, we demonstrated its essentiality by RNA interference (CYP51RNAi) in vitro. CYP51RNAi induction caused morphological defects with multiflagellated cells, suggesting cytokinesis dysfunction. Additionally, the survival of CYP51RNAi infected-mice was improved, showing CYP51 RNAi effect on trypanosomal virulence. During infection with virulent strains, posaconazole-eflornithine and nifurtimox-eflornithine combinations showed similar improvement in mice survival. Thus, our results provide support for a CYP51 targeting based treatment in HAT. In a second work, we studied the innate host immune system characteristics in trypanosomiasis, as a severe immune dysregulation is present in HAT. To analyse the potential immunomodulatory activity of T. gambiense in human settings, we assess the effect of its secretome on dendritic cells (DCs) in vitro, using human monocyte-derived DCs. A significant inhibition of the LPS-induced maturation of DCs was observed with secretome. In line with this impairment, secretome down regulated cytokines production by LPS-activated DCs. TbKHC1, a kinesin heavy chain, is a component of the parasite secretome. We confirmed its role in parasitic escape to immune system by inducing arginase activity, in a murine model. Our results provide new information about the immune system characteristics during trypanosomiasis, which may help to uncover new therapeutic approachs in HAT
Ayed, Zoulikha. "Trypanosome humaine africaine : détection d'autoanticorps anti-neurofilaments et anti-tubulines : essai d'immunisation contre la trypanosomose expérimentale." Limoges, 1999. http://www.theses.fr/1999LIMO117G.
Full textNgo, Nonga Sylvie. "Une nouvelle thérapeutique de la trypanosomose africaine humaine : l'éflornithine." Paris 5, 1993. http://www.theses.fr/1993PA05P053.
Full textChevrier, Céline. "Approche physiopathologique et chronobiologique de la trypanosomose Africaine expérimentale." Lyon 1, 2005. http://www.theses.fr/2005LYO10087.
Full textPervieux, Lynda. "Apports diagnostiques au cours de la trypanosomose humaine africaine." Limoges, 2008. https://aurore.unilim.fr/theses/nxfile/default/a14d2c70-f65d-4ce4-a3e9-eda1e17e4617/blobholder:0/2008LIMO310D.pdf.
Full textHuman African trypanosomiasis (HAT), or sleeping sickness is a parasitic disease due to trypanosomes of the Trypanosoma brucei (T. B. ) group. These parasites are transmitted by the bite of a tse-tse fly. HAT represents a real public health problem in Africa and sub-Saharan Africa. Two stages are classically described in disease progression, the heamo-lymphatic stage and the nervous stage. Diagnosis and stage determination, which are crucial to determine treatment, remain difficult. Frequently used criteria are not very sensitive or very specific and require a lumbar puncture to obtain a sample of cerebrospinal fluid (CSF). The objective of our PhD was to identify new approaches diagnostic to determine disease stage. For that, we studied various subpopulations of T and B lymphocytes, and the cytokines/chemokines controlling them. We initially characterized the regulatory T cells CD4+CD25+Foxp3+ (nTregs), in Trypanosoma brucei-infected mice. NTregs increased in the thymus until 120 days post infection and decreased at 240 days. This may be due to a mechanism blocking nTreg maturation in the thymus, or their exit from the thymus. In contrast, in mesenteric lymph nodes, a nTregs constantly decreased was found during infection. These results suggest that the variation in their number was due to the progression of the infection, but was also age-dependent. Our study identified the lymphocytes present in the blood and CSF of HAT infected patients. In blood, regardless of the HAT stage, the proportion of B cells (CD19) increased whereas the number of T cells decreased, thus confirming the immunosuppressive character of the disease. In the CSF, the increased number of CD19 cells observed for stage 2 patients could constitute a new criterion of the nervous stage. Furthermore, we tried to understand by which mechanisms lymphocytes were attracted into the central nervous system by measurement of different cytokines/chemokines levels in serum and CSF. In serum, cytokines/chemokines levels were only associated with the presence of trypanosomes in CSF. In CSF, their expression was associated with the presence of neurological signs, suggesting a possible use for diagnosis of the nervous stage. Finally, we showed that T. B. Gambiense activated CXCL-13 expression in microglial and endothelial cell lines, suggesting a direct role of trypanosomes in regulation. Our studies on lymphocytes and cytokines/chemokines implicated highlights the necessity of their evaluation as stage markers by multicentric studies in the field
Morlais, Isabelle. "Identification des trypanosomes chez les glossines en zones endémiques de trypanosomose humaine au Cameroun." Montpellier 2, 1998. http://www.theses.fr/1998MON20085.
Full textAmrouni, Donia. "Monoxyde d'azote (NO) et trypanosomose africaine expérimentale chez le rat." Thesis, Lyon 1, 2010. http://www.theses.fr/2010LYO10129.
Full textBy way of an experimental model of human African trypanosomiasis (HAT or sleeping sickness), the rat infected by Trypanosoma brucei brucei, we examined the involvement of nitric oxide (NO) in the development of this pathology. In the infected animals, opposite variations in NO concentration were observedeither at peripheral or brain compartments: NO decreases in blood but increases in brain. These changes are dependent on the activity of the inducible NO-synthase (iNOS). In periphery, the decrease observed in NO concentration favors the parasite entrance because the trypanocidal pressure exerted by NO is decreased. In such a situation, L-arginine, the substrate conducing to the synthesis of NO, is employed for the synthesis of polyamines, a category of compounds necessary for the parasite growth. It is likely that above mechanisms might be triggered by parasites. In brain, NO synthesis is submitted to additive complex regulatory processes implying arginase and NG, NG-dimethylarginine dimethylaminohydrolase (DDAH). While the arginase activity remains constant, that of DDAH increases throughout the infection process in keeping with western-blot and amino acids data. This increase, depending mainly on DDAH-2 isoform, lasts in a brain NO increase which enhance the trypanocidal pressure. Above changes, opposite to those observed in periphery, are not favorable to the parasite survival in brain. They might constitute an additive protection against the parasite entry in this organ
Hamidou, Soumana Illiassou. "La Trypanosomose Humaine Africaine (maladie du sommeil) : caractérisation de gènes impliqués dans les interactions symbiontes - glossines - trypanosomes." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20182.
Full textTsetse flies are the vectors of African trypanosomes, the causative agents of human African trypanosomiasis (sleeping sickness)in sub-saharan Africa. New sleeping sickness control strategies plan to use tsetse gut symbionts to increase tsetse flies refractoriness to trypanosomes infection. Such approaches require good knowledge on the molecular and cellular basis of interactions between symbionts, tsetse fly and trypanosome. This thesis aimed to i) assess the evolution of Glossina palpalis gambiensis symbionts (Wigglesworthia glossinidia and Sodalis glossinidius) densities throughout the host fly development cycle and ii) to characterize genes of Sodalis, G. p. gambiensis and Trypanosoma brucei gambiense in interaction, which are differentially expressed during the infection. We showed that both symbionts are present in all tsetse fly development stages, allowing their use in the context of vector control. Subsequently, experimental infections were performed on colonies flies. G. p. gambiensis female flies were fed on T. b. gambiense hosting mice. Transcriptome of infected flies and flies that have cleared trypanosome they ingested were analysed. This allow us identifying genes of Sodalis, G. p. gambiensis and T. b. gambiense differentially expressed at the infection key stages. Our results highlight the complexity of interactions between Sodalis, G. p. gambiensis, T. b. gambiense and underline the involvement of bacteriophages hosted by S. glossinidius in tsetse fly refractoriness to trypanosome infection. Key words: sleeping sickness; tsetse fly; trypanosome; symbionts; vector competence; gene expression
Jacquot, Laurence. "Les traitements de la trypanosomose africaine humaine : les données actuelles de la thérapeutique." Paris 5, 1990. http://www.theses.fr/1990PA05P124.
Full textAmmar, Zeinab. "Caractérisation de l' interaction entre les trypanosomes africains et les cellules endothéliales : activation, inflammation et rôle des trans-sialidases." Thesis, Bordeaux 2, 2013. http://www.theses.fr/2013BOR22057/document.
Full textTrypanosomiasis remains by far the most devastating parasitic disease in Africa affecting both humans and livestock. The current control strategies being not efficient, an alternative “anti-disease” strategy aiming to neutralize the pathological effects of the parasite rather than to eliminate it, was proposed. Therefore, it is essential to understand the development of pathogenesis and characterize the involved pathogenic factors. In this context, we wanted to elucidate the host-pathogen interaction between the African trypanosomes and the mammalian host endothelium. By comparing four different trypanosomes species, we showed that they displayed distinct capacities for activation of endothelial cells. We clearly demonstrated that T. congolense, T. vivax and T. b. gambiense activate the endothelial cells via the NF-ƘB pathway, but not T. b. brucei. This activation caused a pro-inflammatory response in vitro and in vivo, showing the importance of this mechanism in the development of pathogenesis. For the first time, we identified sialidase activity in the human parasite T. brucei gambiense, and demonstrated that the trypanosomal trans-sialidases are the mediators of this endothelial activation and its consequent inflammatory response, for both human and animal trypanosomes. Additionnally, we showed that endothelial cell activation is mediated by the lectin-like domain of the trans-sialidase rather than the catalytic site, and involves sialylated receptors of the endothelial cell surface. In conclusion, our study brings considerable insights into the host-pathogen relationship and designates sialidases as a central virulence factor in the molecular crosstalk during trypanosomiasis, which makes it a perfect target for the anti-disease strategy
Books on the topic "Trypanosomose africaine"
Webster, Paul. Endocytosis by African trypanosomes. Uxbridge: Brunel University, 1989.
Find full textBeninguisse, Gervais. La trypanosomiase humaine africaine dans l'arrondissement d'Ombessa (Cameroon). Yaoundé: l'Institut de formation et de recherche démographiques, 1998.
Find full textRusso, David C. W. Directional movement of variable surface glycoprotein-antibody complexes in african trypanosomes. Uxbridge: Brunel University, 1992.
Find full textBado, Jean-Paul. Médecine coloniale et grandes endémies en Afrique 1900-1960: Lèpre, trypanosomiase humaine et onchocercose. Paris: Éditions Karthala, 1996.
Find full textP, Boyt W., ed. A field guide for the diagnosis, treatment and prevention of African animal trypanosomosis. Rome: Food and Agriculture Organization of the United Nations, 1998.
Find full textKemmegne, Joseph. Connaissances, attitudes et pratiques à l'égard de la trypanosomiase africaine dans l'arrondissement de Santchou (Ouest-Cameroon). Yaoundé: l'Institut de formation et de recherche démographiques, 1998.
Find full textEugène Jamot, 1879-1937: Le médecin de la maladie du sommeil ou trypanosomiase. Paris: Éditions Karthala, 2011.
Find full textLeak, S. G. A. Tsetse biology and ecology: Their role in the epidemiology and control of trypanosomosis. Oxon: CABI Publishing in association with International Livestock Research Institute, 1999.
Find full textRamen, Fred. Sleeping sickness and other parasitic tropical diseases. New York: Rosen, 2002.
Find full textOnah, Denchris Nnabuike. The elegance and success of trypanosomes as parasites: Immunological perspective : an inaugural lecture of the University of Nigeria, delivered on June 4, 2009. Nsukka: University of Nigeria, Senate Ceremonials Committee, 2009.
Find full textBook chapters on the topic "Trypanosomose africaine"
Black, Samuel J. "Control of pathogenesis in African animal trypanosomiasis: a search for answers at ILRAD, ILCA and ILRI, 1975-2018." In The impact of the International Livestock Research Institute, 103–47. Wallingford: CABI, 2020. http://dx.doi.org/10.1079/9781789241853.0103.
Full textBüscher, Philippe. "Diagnosis of African Trypanosomiasis." In Trypanosomes and Trypanosomiasis, 189–216. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1556-5_8.
Full textNamangala, Boniface, and Steven Odongo. "Animal African Trypanosomosis in Sub-Saharan Africa and Beyond African Borders." In Trypanosomes and Trypanosomiasis, 239–60. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1556-5_10.
Full textMansfield, John M., Donna M. Paulnock, and Gina M. Hedberg. "Bridging Innate and Adaptive Immunity in African Trypanosomiasis." In Trypanosomes and Trypanosomiasis, 89–114. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1556-5_4.
Full textGarcia-Salcedo, Jose A., Jane C. Munday, Juan D. Unciti-Broceta, and Harry P. de Koning. "Progress Towards New Treatments for Human African Trypanosomiasis." In Trypanosomes and Trypanosomiasis, 217–38. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1556-5_9.
Full textLonsdale-Eccles, J. D., and D. J. Grab. "Proteases in African trypanosomes." In Cysteine Proteinases and their Inhibitors, edited by Vito Turk, 189–98. Berlin, Boston: De Gruyter, 1986. http://dx.doi.org/10.1515/9783110846836-022.
Full textTurner, M. J. "Antigens of African Trypanosomes." In Current Topics in Microbiology and Immunology, 141–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-09197-5_7.
Full textHolzmuller, Philippe, Pascal Grébaut, and Anne Geiger. "Proteomics and African Trypanosomes: Shedding New Light on Host–Vector–Parasite Interactions and Impact on Control Methods." In Trypanosomes and Trypanosomiasis, 161–87. Vienna: Springer Vienna, 2013. http://dx.doi.org/10.1007/978-3-7091-1556-5_7.
Full textGöringer, H. Ulrich. "RNA Editing in African Trypanosomes: A U-ser’s G-U-ide." In RNA Metabolism in Trypanosomes, 149–65. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-28687-2_7.
Full textPays, E. "Antigenic variation in African trypanosomes." In Progress in Human African Trypanosomiasis, Sleeping Sickness, 31–52. Paris: Springer Paris, 1999. http://dx.doi.org/10.1007/978-2-8178-0857-4_3.
Full textConference papers on the topic "Trypanosomose africaine"
Hutchings, Nathan R. "Flagellar Bend Dynamics in African Trypanosomes." In ISIS INTERNATIONAL SYMPOSIUM ON INTERDISCIPLINARY SCIENCE. AIP, 2005. http://dx.doi.org/10.1063/1.1900400.
Full textWestergard, Anna M. "Divalent Cation Control of Flagellar Motility in African Trypanosomes." In ISIS INTERNATIONAL SYMPOSIUM ON INTERDISCIPLINARY SCIENCE. AIP, 2005. http://dx.doi.org/10.1063/1.1900402.
Full textMueh, Mario, Matthias Maasch, Michael Brecht, H. Ulrich Goringer, and Christian Damm. "Complex dielectric characterization of African trypanosomes for aptamer-based terahertz sensing applications." In 2017 First IEEE MTT-S International Microwave Bio Conference (IMBIOC). IEEE, 2017. http://dx.doi.org/10.1109/imbioc.2017.7965783.
Full textDardonville, Christophe, Francisco José Fueyo González, Carolina Izquierdo García, Teresa Díaz Ayuga, Godwin Ebiloma, Emmanuel Balogun, Kiyoshi Kita, and Harry de Koning. "Targeting the Trypanosome Alternative Oxidase (TAO) as Promising Chemotherapeutic Approach for African Trypanosomiasis." In 3rd International Electronic Conference on Medicinal Chemistry. Basel, Switzerland: MDPI, 2017. http://dx.doi.org/10.3390/ecmc-3-04641.
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