10 research outputs found
Les raisons d'un si faible recours à l'indice de pression systolique dans le dépistage de l'artérite oblitérante des membres inférieurs en médecine générale
PARIS7-Xavier Bichat (751182101) / SudocSudocFranceF
Dysfonctions érectiles en médecine générale (état des lieux de l'enseignement et création d'une fiche de synthÚse pour la consultation)
PARIS7-Xavier Bichat (751182101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Prise en charge en mĂ©decine gĂ©nĂ©rale des patients diabĂ©tiques de type 2 dĂ©sĂ©quilibrĂ©s sous bithĂ©rapie orale (enquĂȘte transversale auprĂšs des gĂ©nĂ©ralistes du dĂ©partement des Hauts-de-Seine)
PARIS7-Xavier Bichat (751182101) / SudocSudocFranceF
Information structure management and textual competence in translation and interpreting : sentence openings in translation from Arabic into English as a second language
Information structure management is a key aspect of textual competence in translation and interpreting; a high degree of competence is marked by the ability to sequence elements in such in a way that the target text looks stylistically authentic while maintaining the integrity of the information structure of the source text. The difficulty is accentuated when working into a second language, and where the source and target languages are structurally disparate. This study focuses on one aspect of information structure management, namely how Arabic speakers tackle sentence openings in translating and interpreting into English. Three student and three professional translators/interpreters were asked to generate output in three different production modes: fast translation, consecutive interpreting, and scaffolded speech, the latter providing baseline interlanguage output. Types of sentence openings were found to be markedly different in fast translation and consecutive interpreting, and to an extent between novices and experts. The findings are consistent with the predictions of the Translation-Interpreting Continuum, a processing model which predicts that various translation and interpreting production modes rely on different kinds of mental representation, and that competence levels are distinguished by degree of automatization. Implications for curriculum design and assessment are discussed
Hypomorphic variants in AK2 reveal the contribution of mitochondrial function to B-cell activation
Background
The gene AK2 encodes the phosphotransferase adenylate kinase 2 (AK2). Human variants in AK2 cause reticular dysgenesis, a severe combined immunodeficiency with agranulocytosis, lymphopenia, and sensorineural deafness that requires hematopoietic stem cell transplantation for survival.
Objective
We investigated the mechanisms underlying recurrent sinopulmonary infections and hypogammaglobulinemia in 15 patients, ranging from 3 to 34 years of age, from 9 kindreds. Only 2 patients, both of whom had mildly impaired T-cell proliferation, each had a single clinically significant opportunistic infection.
Methods
Patient cells were studied with next-generation DNA sequencing, tandem mass spectrometry, and assays of lymphocyte and mitochondrial function.
Results
We identified 2 different homozygous variants in AK2. AK2(G100S) and AK2(A182D) permit residual protein expression, enzymatic activity, and normal numbers of neutrophils and lymphocytes. All but 1 patient had intact hearing. The patients' B cells had severely impaired proliferation and in vitro immunoglobulin secretion. With activation, the patients' B cells exhibited defective mitochondrial respiration and impaired regulation of mitochondrial membrane potential and quality. Although activated T cells from the patients with opportunistic infections demonstrated impaired mitochondrial function, the mitochondrial quality in T cells was preserved. Consistent with the capacity of activated T cells to utilize nonmitochondrial metabolism, these findings revealed a less strict cellular dependence of T-cell function on AK2 activity. Chemical inhibition of ATP synthesis in control T and B cells similarly demonstrated the greater dependency of B cells on mitochondrial function.
Conclusions
Our patients demonstrate the in vivo sequelae of the cell-specific requirements for the functions of AK2 and mitochondria, particularly in B-cell activation and antibody production