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排序方式: 共有10000条查询结果,搜索用时 78 毫秒
971.
972.
V. Aas K. L. Sand H.‐C. Åsheim H. B. Benestad J.‐G. Iversen 《Scandinavian journal of immunology》2013,77(6):442-451
C‐reactive protein (CRP) binds to Fcγ‐receptors, FcγRIIa (CD32) with high affinity and to FcγRIa (CD64) with low affinity. The binding to CD32 has been shown to be allele specific, that is, it binds to R/R131 but not to H/H131. Little is known about the cooperation of CRP and neutrophilic granulocytes (PMNs) in inflammatory reactions. The purpose of the present study was to examine CRP signalling in human PMNs, and whether this signalling is also allele specific. Cytosolic calcium of PMN was measured in a single‐cell digital imaging system. Receptor expression and polymorphism were studied by real‐time RT‐PCR, flow cytometry and standard PCR. C‐reactive protein induced cytosolic calcium signals in PMNs from homozygote R/R131donors, but not in PMNs from heterozygote R/H131 donors. However, after the heterozygote PMNs had been incubated with IFN‐γ (100 U/ml) for 2 h, both the proportion of cells responding and the size of the CRP‐induced calcium signals increased. IFN‐γ increased mRNA expression of CD64 about fivefold and surface protein expression of CD64 about fourfold. The calcium signal elicited by CRP was augmented by PMN adhesion to fibronectin, but almost totally abrogated by sphingosine kinase inhibitors. The signals were partly dependent on calcium influx. In conclusion, calcium signalling instigated by CRP in human PMN is FcγRIIa allele specific, as R/R131 responded to CRP, whereas R/H131 did not. However, increased expression of FcγRIa (CD64), stimulated by IFN‐γ, can augment calcium signalling by CRP in low‐responders. This suggests that the state of the PMNs, as well as the genetic origin, affect sensitivity for CRP. 相似文献
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974.
975.
Immune responses of a meningococcal A + W outer membrane vesicle (OMV) vaccine with and without aluminium hydroxide adjuvant in two different mouse strains 下载免费PDF全文
Gro Tunheim Lisbeth M. Næss Gunnstein Norheim Luis Garcia Daniel Cardoso Aleida Mandiarote Domingo Gonzalez Kalpana Sinnadurai Åse‐Karine Fjeldheim Karin Bolstad Einar Rosenqvist 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2016,124(11):996-1003
Meningococci (Neisseria meningiditis) of serogroups A and W have caused large epidemics of meningitis in sub‐Saharan Africa for decades, and affordable and multivalent vaccines, effective in all age groups, are needed. A bivalent serogroup A and W (A + W) meningococcal vaccine candidate consisting of deoxycholate‐extracted outer membrane vesicles (OMV) from representative African disease isolates was previously found to be highly immunogenic in outbred mice when formulated with the adjuvant aluminium hydroxide (AH). OMV has been shown to have inherent adjuvant properties. In order to study the importance of AH and genetical differences between mice strains on immune responses, we compared the immunogenicity of the A + W OMV vaccine when formulated with or without AH in inbred C57BL/6J and BALB/cJ mice (Th1 and Th2 dominant strains, respectively). The immunogenicity of the vaccine was found to be comparable in the two mice strains despite their different immune profiles. Adsorption to AH increased anti‐OMV IgG levels and serum bactericidal activity (SBA). The immune responses were increased by each dose for the adsorbed vaccine, but the third dose did not significantly improve the immunogenicity further. Thus, a vaccine formulation with the A and W OMV will likely benefit from including AH as adjuvant. 相似文献
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977.
José‐Ramón Corcuera‐Flores Lizett Casttellanos‐Cosano Daniel Torres‐Lagares María ángeles Serrera‐ Figallo ÁNGELA Rodríguez‐Caballero Guillermo Machuca‐Portillo 《Clinical anatomy (New York, N.Y.)》2016,29(5):555-560
Cri du chat syndrome is an autosomal disorder. Because it affects few people in the population it is considered a rare disease, yet it is one of the most common autosomal chromosomal syndromes in humans. It entails pathognomonic alterations that affect the craniofacial and oral anatomy of patients. The aim of this study is to review these craniofacial and oral abnormalities in patients with Cri du chat syndrome. The PubMed Medline database was searched using two different strategies. First, we used “Dentistry” and “Cri du chat” as keywords; second, we used “Cri du chat” and “craniofacial.” Seven articles in which the main orofacial and cranio‐skeletal characteristics of patients with Cri du chat syndrome were described were selected according to the inclusion and exclusion criteria. Cri du Chat syndrome entails pathognomonic characteristics in the craniofacial area (epicanthus, short philtrum, and wide nasal bridge), the oral area (mandibular retrognathism and anterior open bite) and the cranial region (alterations at the cranial base angle and a small upper airway). However, more studies on larger samples are needed to specify the orofacial and craniofacial characteristics of patients with Cri du chat syndrome more accurately. Clin. Anat. 29:555–560, 2016. © 2015 Wiley Periodicals, Inc. 相似文献
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979.
Does First Nations ancestry modify the association between gestational diabetes and subsequent diabetes: a historical prospective cohort study among women in Manitoba,Canada 下载免费PDF全文
980.
Vincristine efficacy and safety in treating immune thrombocytopenia: a retrospective study of 35 patients 下载免费PDF全文
Jérôme Stirnemann Najett Kaddouri Medhi Khellaf Anne‐Sophie Morin Virginie Prendki Marc Michel Arsène Mekinian Philippe Bierling Pierre Fenaux Bertrand Godeau Olivier Fain 《European journal of haematology》2016,96(3):269-275
Although vincristine (VCR) is sometimes prescribed for newly diagnosed immune thrombocytopenia (ITP), its efficacy in refractory ITP and sustained efficacy has yet to be demonstrated. We describe our clinical experience and recommend vincristine's correct place in ITP management. This retrospective study analysed data from 35 patients with newly diagnosed (ND), persistent (P) or chronic (C) ITP treated with VCR. The initial response rate, defined as >30 × 109 platelets/L, reached 86% after a median of 7 [interquartile range (IQR) 6–13] days. In ND and P ITP, even when previous therapies were inefficient, initial response was 87.5%, suggesting that this treatment could be used particularly in rescue. Median survival time, without failure or relapse, was 15 months (Kaplan–Meier curve). Predictive factors (univariate analysis) of an initial and long‐term response were a small number of prior treatments received. However, at 2 yr, only seven patients had sustained response. Eight (23%) patients experienced adverse events: neuropathy for seven and bowel obstruction for one. Vincristine efficacy in ITP was confirmed, and it could be a good strategy for treating resistant ITP, especially in emergencies. In this era of new therapeutics, VCR deserves to remain on the list of ITP treatments because of its initial efficacy, safety and low cost. 相似文献