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1.
Guillain-Barré syndrome treated with high doses of immunoglobulins by the intravenous route: 4 cases
Plasma exchange is the treatment of choice in Guillain-Barré syndrome, but it has some restrictions. Complications may result from the apharesis procedure (hypovolemia, electrolyte abnormalities), from the replacement fluid, or from preexisting diseases (cardiac arrhythmias). Four patients with Guillain-Barré syndrome were treated with high-dose intravenous immunoglobulins (IgIV): 0.4 g/Kg/day for 5 consecutive days. Three patients had a beneficial response, but 1 did not improve and needed plasma exchange. The mechanisms of IgIV are still imperfectly defined in Guillain-Barré syndrome. IgIV should be reserved for therapeutic failures with plasma exchange, or for patients with contraindications for plasma exchange. 相似文献
2.
Pierre-Antoine Chabriac Antonin Fabbri Jean-Claude Morel Jean-Paul Laurent Joachim Blanc-Gonnet 《Materials》2014,7(4):3002-3020
Rammed earth is a sustainable material with low embodied energy. However, its development as a building material requires a better evaluation of its moisture-thermal buffering abilities and its mechanical behavior. Both of these properties are known to strongly depend on the amount of water contained in wall pores and its evolution. Thus the aim of this paper is to present a procedure to measure this key parameter in rammed earth or cob walls by using two types of probes operating on the Time Domain Reflectometry (TDR) principle. A calibration procedure for the probes requiring solely four parameters is described. This calibration procedure is then used to monitor the hygrothermal behavior of a rammed earth wall (1.5 m × 1 m × 0.5 m), instrumented by six probes during its manufacture, and submitted to insulated, natural convection and forced convection conditions. These measurements underline the robustness of the calibration procedure over a large range of water content, even if the wall is submitted to quite important temperature variations. They also emphasize the importance of gravity on water content heterogeneity when the saturation is high, as well as the role of liquid-to-vapor phase change on the thermal behavior. 相似文献
3.
Marine Gaudry Pierre-Antoine Barral Arnaud Blanchard Sylvie Palazzolo Sonia Bolomey Virgile Omnes Mariangela De Masi Magali Carcopino-Tusoli Olivier Meyrignac Hervé Rousseau Alexis Jacquier Reda Hassen-Khodja Alessandra Bura-Rivière Jean-Michel Bartoli Stéphanie Gentile Philippe Piquet Laurence Bal 《European journal of vascular and endovascular surgery》2021,61(6):930-937
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4.
Umbilical cord blood (UCB) provides immediate access to haemopoietic stem/progenitor cells (HSPC) but low cell number restricts use in full adult bone marrow reconstitution. This study investigated early ex vivo expansion kinetics of UCB AC133+ cells (2-4 x 10(4)/ml), mononuclear cells (MNC, 1-2 x 10(6)/ml) and AC133negative cells (AC133(neg), 2-4 x 10(4)/ml) in stroma-free 8 d liquid culture (fetal bovine serum-supplemented Iscove's-modified Dulbecco's medium (IMDM) with either 'K36EG'[c-Kit ligand, interleukin 3 (IL-3), IL-6, erythropoietin, granulocyte colony-stimulating factor] or 'TPOFL' (thrombopoietin, Flt-3 ligand). Cell enumeration, apoptosis assay and AC133/CD34/CD38 antigen immunophenotyping were performed at d 0, 3, 5 and 8. All three cell populations went through a proliferation lag phase between d 3 and d 5. AC133+ cells recovered better from lag phase with significantly higher fold increase (FI) when compared with MNC and AC133(neg) populations (K36EG FI: 15.04 +/- 5.46; TPOFL FI: 8.59 +/- 2.92, P < 0.05). After 8 d, populations lacking AC133+ cells were significantly more inclined to undergo apoptosis under proliferative conditions (P < 0.01). Also, when compared with K36EG, 8 d TPOFL-expanded AC133+ cells encompassed a significantly higher percentage of AC133+ and CD34+ early HSPC (K36EG: 20.50 +/- 2.36; TPOFL: 47.00 +/- 7.69; P < 0.05). In conclusion, TPOFL synergism demonstrated the potential for AC133+ HSPC ex vivo expansion inducing self-renewal, early HSPC maintenance and promoting cell survival status. 相似文献
5.
Tuong L. Nguyen Shuai Li Gillian S. Dite Ye K. Aung Christopher F. Evans Ho N. Trinh Laura Baglietto Jennifer Stone Yun-Mi Song Joohon Sung Dallas R. English Mark A. Jenkins Pierre-Antoine Dugué Roger L. Milne Melissa C. Southey Graham G. Giles Malcolm C. Pike John L. Hopper 《International journal of cancer. Journal international du cancer》2020,147(2):375-382
Interval breast cancers (those diagnosed between recommended mammography screens) generally have poorer outcomes and are more common among women with dense breasts. We aimed to develop a risk model for interval breast cancer. We conducted a nested case–control study within the Melbourne Collaborative Cohort Study involving 168 interval breast cancer patients and 498 matched control subjects. We measured breast density using the CUMULUS software. We recorded first-degree family history by questionnaire, measured body mass index (BMI) and calculated age-adjusted breast tissue aging, a novel measure of exposure to estrogen and progesterone based on the Pike model. We fitted conditional logistic regression to estimate odds ratio (OR) or odds ratio per adjusted standard deviation (OPERA) and calculated the area under the receiver operating characteristic curve (AUC). The stronger risk associations were for unadjusted percent breast density (OPERA = 1.99; AUC = 0.66), more so after adjusting for age and BMI (OPERA = 2.26; AUC = 0.70), and for family history (OR = 2.70; AUC = 0.56). When the latter two factors and their multiplicative interactions with age-adjusted breast tissue aging (p = 0.01 and 0.02, respectively) were fitted, the AUC was 0.73 (95% CI 0.69–0.77), equivalent to a ninefold interquartile risk ratio. In summary, compared with using dense breasts alone, risk discrimination for interval breast cancers could be doubled by instead using breast density, BMI, family history and hormonal exposure. This would also give women with dense breasts, and their physicians, more information about the major consequence of having dense breasts—an increased risk of developing an interval breast cancer. 相似文献
6.
The SLC2 family of facilitated hexose and polyol transporters 总被引:1,自引:0,他引:1
The SLC2 family of glucose and polyol transporters comprises 13 members, the glucose transporters (GLUT) 1–12 and the H+-myo-inositol cotransporter (HMIT). These proteins all contain 12 transmembrane domains with both the amino and carboxy-terminal ends located on the cytoplasmic side of the plasma membrane and a N-linked oligosaccharide side-chain located either on the first or fifth extracellular loop. Based on sequence comparison, the GLUT isoforms can be grouped into three classes: class I comprises GLUT1–4; class II, GLUT6, 8, 10, and 12 and class III, GLUT5, 7, 9, 11 and HMIT. Despite their sequence similarity and the presence of class-specific signature sequences, these transporters carry various hexoses and HMIT is a H+/myo-inositol co-transporter. Furthermore, the substrate transported by some isoforms has not yet been identified. Tissue- and cell-specific expression of the well-characterized GLUT isoforms underlies their specific role in the control of whole-body glucose homeostasis. Numerous studies with transgenic or knockout mice indeed support an important role for these transporters in the control of glucose utilization, glucose storage and glucose sensing. Much remains to be learned about the transport functions of the recently discovered isoforms (GLUT6–13 and HMIT) and their physiological role in the metabolism of glucose, myo-inositol and perhaps other substrates.An erratum to this article can be found at 相似文献
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8.
Nicolas Couturier Pierre-Antoine Gourraud Isabelle Cournu-Rebeix Claire Gout Florence Bucciarelli Gilles Edan Marie-Claude Babron Fran?oise Clerget-Darpoux Michel Clanet Bertrand Fontaine David Brassat 《European journal of human genetics : EJHG》2009,17(6):844-847
A recent investigation reported, for the first time, an association between variants in the IFIH1-GCA-KCNH7 locus and multiple sclerosis (MS). We sought to replicate this genetic association in MS with a new independent MS cohort composed of French Caucasian MS trio families. The two most significant IFIH1 single nucleotide polymorphisms, rs1990760 and rs2068330, reported as involved in MS susceptibility, were genotyped in 591 French Caucasian MS trio families, and analyzed using the transmission/disequilibrium test. No association with MS was found (rs1990760, P=0.45 and rs2068330, P=0.27). Similarly, no significant association was detected after stratification for HLA-DRB1*1501 carriers. Reasons that may explain this discrepancy between the original report and our study are discussed. 相似文献
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