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排序方式: 共有133条查询结果,搜索用时 16 毫秒
1.
I Luyeye C Fievet J C Dupont C Durieux N Slimane J F Lecocq C Demarquilly J C Fruchart 《Clinical biochemistry》1988,21(4):255-261
Predefined monoclonal antibodies (Mabs) were used in an immunoenzymometric assay to study the immunochemical heterogeneity of lipoproteins and to search for potential epitopes with pathological importance. By measuring apolipoprotein B (apo B) epitopes in patients with and without angiographically documented coronary artery disease and in patients with type IIa hyperlipoproteinemia, we have found that both types of patients have a significant increase in Apo B-containing particles specifically recognized by one Mab (BL3). We have also observed that the effects of fenofibrate on type IIa patients vary greatly depending on the plasma concentrations of various Apo B-containing lipoproteins. The greatest effects occurred in patients with epitopes recognized by BL3. Lastly, by sequential precipitation of specific epitopes by BL3, we have obtained evidence that the residual epitope(s) may be related to one or more lipoprotein particles. 相似文献
2.
J Estaquier C Boutillon J C Ameisen H Gras-Masse J P Lecocq B Barbier A Dixson A Tartar A Capron C Auriault 《Molecular immunology》1992,29(4):489-499
T helper cell antigenic and immunogenic determinants of the nef protein were investigated in the rat and chimpanzee models using recombinant nef protein and five synthetic peptides selected according to their amphipathic and alpha-helicity properties. The nef protein was shown to be immunogenic with both Freund's or aluminium hydroxide adjuvants. After immunization with the nef protein the 45-69 peptide was the most antigenic in rat and monkey models. In contrast, the 98-112 peptide, that required a carrier protein to induce in vitro rat T cell recall proliferation, was able to restimulate monkey T cells in the absence of a carrier. The amino acid sequence carrying the antigenic activity of the 45-69 peptide was further investigated by synthesizing short peptides overlapping this region. The antigenic sequence was precisely located in the middle of the peptide (region 50-59). This sequence was antigenic only when N alpha-acetylated. Circular dichroism analysis of the 45-69 peptide and the in vitro activity of the N-terminus group indicate in this case the involvement of the alpha-helical propensity for antigen presentation. However, the shorter sequence 50-64, able to induce a T cell reactivity, was determined as a beta-pleated sheet structure in aqueous solution. The 45-69 peptide was not only antigenic but also immunogenic and behaved in vivo as a functional T helper cell epitope. Indeed, the priming with the peptide or the transfer of peptide specific T cells to a naive recipient, followed by immunization with the nef protein, enhanced the subsequent antibody response to the nef protein. Together, these data indicate that the 45-69 peptide appears as a candidate for the in vivo elicitation of T cell immunity to the HIV-1 nef regulatory protein. 相似文献
3.
F Trottein C Godin R J Pierce B Sellin M G Taylor I Gorillot M S Silva J P Lecocq A Capron 《Molecular and biochemical parasitology》1992,54(1):63-72
The 28-kDa glutathione S-transferase from Schistosoma mansoni (Sm28GST) is a candidate vaccine antigen. To evaluate the antigenic and phylogenetic variations between the 28-kDa GSTs from 4 species of schistosome, we have cloned and sequenced the 28-kDa GSTs from Schistosoma haematobium (Sh28GST) and Schistosoma bovis (Sb28GST). Sb28GST and Sh28GST are more similar to each other (97%) than to Sm28GST (90%) and particularly to the 28-kDa GST from Schistosoma japonicum (Sj28GST, 77%). Antisera directed against the major Sm28GST epitopes revealed differences in the recognition of the 28-kDa GSTs from the other schistosome species suggesting that these regions have been subjected to evolutionary pressure. The consequences of such species-specific epitopes on the development of a multi-species anti-schistosome vaccine are discussed. 相似文献
4.
Ravel Jean-Marie Benkirane Mehdi Calmels Nadège Marelli Cecilia Ory-Magne Fabienne Ewenczyk Claire Halleb Yosra Tison François Lecocq Claire Pische Guillaume Casenave Philippe Chaussenot Annabelle Frismand Solène Tyvaert Louise Larrieu Lise Pointaux Morgane Drouot Nathalie Bossenmeyer-Pourié Carine Oussalah Abderrahim Guéant Jean-Louis Leheup Bruno Bonnet Céline Anheim Mathieu Tranchant Christine Lambert Laëtitia Chelly Jamel Koenig Michel Renaud Mathilde 《Journal of neurology》2021,268(5):1927-1937
Journal of Neurology - STUB1 has been first associated with autosomal recessive (SCAR16, MIM# 615768) and later with dominant forms of ataxia (SCA48, MIM# 618093). Pathogenic variations in STUB1... 相似文献
5.
6.
Metabolic voxel‐based analysis of the complete human brain using fast 3D‐MRSI: Proof of concept in multiple sclerosis 下载免费PDF全文
Maxime Donadieu MS Yann Le Fur PhD Angèle Lecocq PhD Andrew A. Maudsley PhD Soraya Gherib MS Elisabeth Soulier BS Sylviane Confort‐Gouny PhD Fanelly Pariollaud PhD Marie‐Pierre Ranjeva PhD Jean Pelletier MD PhD Maxime Guye MD PhD Wafaa Zaaraoui PhD Bertrand Audoin MD PhD Jean‐Philippe Ranjeva PhD 《Journal of magnetic resonance imaging : JMRI》2016,44(2):411-419
7.
DNA from Fowlpox virus, a member of the Avipoxvirus genus, has been found to hybridize to DNA from vaccinia virus, a member of the Orthopoxvirus genus. The greatest homology detected was around the region containing the vaccinia virus thymidine kinase locus. A 3.1-kbp fowlpox virus fragment that hybridizes to the vaccinia virus HindIII J fragment has been cloned and its sequence determined. Comparison of the nucleotide and deduced amino acid sequence to the cross hybridizing vaccinia fragment revealed extensive conservation of six open reading frames as well as a similar organization along the genome. Nevertheless a fowlpox virus gene corresponding to the vaccinia virus thymidine kinase gene was apparently lacking within the region studied and is probably located elsewhere in the genome. Despite this intriguing divergence, our results indicate that the Avipoxviruses are more closely related to the Orthopoxviruses than previously suspected. 相似文献
8.
C Kirkpatrick R Lecocq F Lamy V Defleur G Dedobeleer D Baran F Rodesch J E Dumont 《Pediatric research》1985,19(12):1341-1345
Mucoviscidosis, the most frequently lethal genetic syndrome of Caucasian population, is a recessive disease with multiple tissue involvement. Although the major pathological changes are observed in lungs and pancreas, abnormalities have also been detected in several other exocrine glands. For many reasons, such as the ready availability of tissue material, the absence of secondary changes and the potential for prenatal diagnosis, cultured skin fibroblasts could be the tissue of choice to search for the primary defect. Several abnormalities have been reported in CF fibroblasts, suggesting that the genetic abnormality is expressed in these cells. To search for potentially mutant protein(s) we have compared the protein composition of normal and CF fibroblasts by two dimensional gel electrophoresis and double-labeling autoradiography using 35S and 75Se methionine as tracer. The results demonstrate the power of the method; however, we have not found one protein spot consistently missing in CF cells. Possible reasons for the absence of a single common identifiable defect are discussed. 相似文献
9.
Fixed and Reproducible Orthostatic Proteinuria: II. Electron Microscopy of Renal Biopsy Specimens from Five Cases 总被引:2,自引:0,他引:2 下载免费PDF全文
10.
O. Fleurot B. Lecocq V. Lecocq A. Le Liboux G. Montay A. Frydman and P. Jaillon 《Fundamental & clinical pharmacology》1991,5(7):601-609
Pharmacokinetics and the degree of beta-blockade of sustained release (SR) acebutolol (500 mg/day) and conventional acebutolol (200 mg tid) were examined after the first oral dose and after 10 days of treatment in ten healthy volunteers. After the first dose, acebutolol Cmax did not significantly differ between the two formulations; however, on day 10 acebutolol Cmax was significantly higher after SR formulation. Cmax of diacetolol, the major metabolite, did not differ between SR and conventional acebutolol neither on day 1 nor on day 10. The dose-corrected relative bio-availability of acebutolol was not different from 100% on day 1 and day 10; however the dose-corrected diacetolol AUC, SR/conventional ratio, was significantly lower than 100% on days 1 and 10. Both acebutolol preparations exerted a significant reduction in exercise tachycardia over 24 h on day 1 and day 10; however, conventional acebutolol exhibited a greater reduction 24 h after the first dose. Exercise-induced increase in systolic blood pressure was similarly inhibited by both treatments except for 24 h after the first dose when systolic blood pressure was significantly higher with SR than with conventional acebutolol. The percent reduction in heart rate during exercise was linearly correlated with log acebutolol plasma concentrations for each treatment regimen. These results suggest that beta-blockade exerted by SR acebutolol in healthy volunteers is equivalent to that of conventional acebutolol. 相似文献