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Academic literature on the topic 'Syndrome myéloprolifératif – Chez l'enfant – Étiologie'
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Dissertations / Theses on the topic "Syndrome myéloprolifératif – Chez l'enfant – Étiologie"
Iturri, Torrea Lorea. "Building a hierarchical tree of erythro-myeloid progenitor (EMP)-derived haematopoiesis." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS108.
Full textErythro-myeloid progenitors (EMP) are developmentally restricted hematopoietic progenitors that produce the first definitive hematopoietic cells in the embryo. Importantly, it has been shown that they give rise to tissue-resident macrophages and mast cells that colonize organs during gestation and self-maintain during adult life without contribution from the bone marrow. These cells are specialized immune cells that contribute to the homeostasis of the tissues throughout steady state and tissue challenge (wounds or infections). This PhD project aimed to characterise the contribution of EMPs to the hematopoietic system of the embryo, with special focus to their niche of origin, the yolk sac. With the use of genetic mouse models, high parameter flow cytometry and single cell expression analysis, this project i) characterises the major definitive progenitor populations in the yolk sac, ii) identifies a novel pathway of direct megakaryopoiesis from EMPs and iii) uncovers two waves of EMP potential emerging at different stages. This work sheds light on the poorly characterised early definitive embryonic haematopoiesis and could have potential implications on macrophage ontogeny studies and early childhood myeloproliferative disorders
Barby, Marie-Laure. "Le syndrome de régression caudale chez l'enfant de mère diabétique : données actuelles : à propos d'une observation." Bordeaux 2, 1990. http://www.theses.fr/1990BOR25266.
Full textEtenna, Lekana-Douki Sonia. "Etiologies virales des syndromes grippaux chez l'adulte et l'enfant et des syndromes diarrhéiques chez l'enfant au Gabon." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20097.
Full textInfluenza-like illness (ILI) is causing mild to severe illnesses that can cause million of deaths each year worldwide. They cause epidemics annually or pandemics. The emergence of a new strain of influenza A virus (pH1N1) in 2009 sparked increased surveillance of influenza viruses. In addition, diarrheal syndromes represent a major public health problem among children under 5 years old. Few data exist on the circulation of influenza and diarrhea viruses in Gabon. In this context, a network surveillance of ILI and diarrhea virus was established in Gabon. The objective of this study was to characterize the viruses responsible of influenza-like illness and diarrhea in four major cities of Gabon.1066 nasal swabs were collected from July 2009 to June 2011. Three hundred and seventeen (317) stools were collected from children under 5 years old from March 2010 to June 2011. Viral etiologies were analyzed by real-time PCR with primers specifics of viruses responsible of ILI: seasonal influenza A and B, pandemic influenza, parainfluenza viruses type 1-4 (PIV1-4), respiratory syncytial virus (RSV), human metapneumovirus (hMPV), coronaviruses NL63 (HCoV-NL63), HKU1 (HCoV-HKU1), OC43 (HCoV-OC43), 229E (HCoV-229E), adenoviruses (AdVs), rhinoviruses (HRVs), parechovirus (HPeVs), enteroviruses (EVs). The enteric viruses were: adenoviruses, noroviruses type 1, 2 (NoV-I, NoV- II), sapoviruses (SaVs), astroviruses (HAstVs) and rotaviruses A (RVA). Genetic diversity was analyzed by phylogenetic analysis following the sequencing of the amplified fragments.Among the swabs analyzed, 61% (n = 654) were positive for at least one virus: AdV (16%), PIVs (15%), virus influenza (13%), EV (12%), RSV (12%), HRV (8%), HCoVs (6.5%), hMPV (2%) and HPeV (0,5%). Children under five years old were the most susceptible population (78%). Viral co-infections were found in nearly one-third (1/3) cases of influenza-like illness: 25% (2 viruses), 6% (3 viruses) and 1 case of co-infection with four viruses. They mainly concerned AdV (41%) and EVs (43%). The seasonality of influenza-like illness has also been showed: 70% occured during the rainy seasons. The prevalence of viral etiologies of diarrhea in children under 5 years old was 60.9% (n = 193). The virus responsible of these were: RVA (21.7%), AdV (19.6%), NoV-I (9.1%), NoV-II (13.9%), SaV (9.5 %) and HastV (6.3%). Among the AdV, the majority serotype was AdV-41 (species F), while the majority of astrovirus genotype was HAstV-1. We got a total or partial genotyping G/P for 59 patients. The strains were identified: G1P[8] (8.5%), G2P[4] (3.4%), G3P[6] (1.7%), G6P[6] (40.7%), G12P[8] (3.4%), G1 (1.7%), G2 (3.4%), G3 (3.4%), G6 (13.5%), G12 (6.7%), P[6] (8.5%), P[8] (5.1%). This work allowed the establishment of a surveillance network of viruses responsible of ILI and diarrhea in order to deal with epidemics and pandemics in Gabon. The study of diarrheal syndromes identified strains circulating in Gabon, including rotavirus affecting public health. These results allow us to consider a better adaptation of therapeutic and reflection regarding the implementation of a vaccination strategy against rotavirus and influenza viruses
Gutierrez, Robledo Luis Miguel Francisco. "Détérioration cognitive et syndrome métabolique au Mexique : une origine commune dans des facteurs synergiques, agissant depuis la première enfance." Bordeaux 2, 2005. http://www.theses.fr/2005BOR21223.
Full textFour characteristics define the specificities of the Mexican aging process : It high speed, the absence of relationship between an improvement of the economic situation and population aging, a difficult socio-political context and unique health status, in a sense that cohorts aged 60 years or more survived into old age thanks to medical support rather than because of the standards of living. A potential consequence is an increased frailty of the health status expressed in a greater tendency to develop chronic and degenerative diseases. Data was obtained from 4 health surveys in Mexico. We present the prevalence rates for dementia, obesity, diabetes, hypertension and their associated factors. Our results constitute preliminary evidence about the influence of early childhood health and wellbeing on the future emergence of chronic diseases related to the metabolic syndrome. Our results also suggest an association between the metabolic syndrome and dementia's prevalence and nature. The development of cognitive reserve is limited by factors related to malnutrition in childhood and this is reflected in anthropometric markers and this underdevelopment predisposes to cognitive impairment
Books on the topic "Syndrome myéloprolifératif – Chez l'enfant – Étiologie"
Mazeau, Michèle. Dysphasies, troubles mnésiques, syndrome frontal chez l'enfant atteint de lésions cérébrales précoces: Du trouble à la rééducation. Paris: Masson, 1999.
Find full textMazeau, Michèle. Dysphasies, troubles mnésiques, syndrome frontal chez l'enfant atteint de lésions cérébrales précoces: Du trouble à la rééducation. Paris: Masson, 1997.
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