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排序方式: 共有59条查询结果,搜索用时 31 毫秒
1.
N Bruneau P Arbeille M C Dourneau B Garreau L Pourcelot G Lelord 《Comptes rendus de l'Académie des sciences. Série III, Sciences de la vie》1989,308(9):255-260
Transcranial Doppler ultrasonographic recordings of the middle cerebral arteries were performed on eight children with autistic behavior compared to eight controls. Blood flow measurements were assessed at rest and during auditory and visual stimulations. The main result was obtained during the auditory stimulations and concerned the left artery blood flow which is lower in autistics than in controls in these conditions (p less than .02). This result confirms the possibility of a left hemisphere dysfunctioning in autistics and may be related to clinical features as language disabilities and paradoxical reactivity to auditory stimuli. 相似文献
2.
Assignment of a human cyclin A gene to 4q26-q27 总被引:1,自引:0,他引:1
V Blanquet J A Wang X Chenivesse B Henglein F Garreau C Bréchot C Turleau 《Genomics》1990,8(3):595-597
3.
Rearrangement of a common cellular DNA domain on chromosome 4 in human primary liver tumors. 总被引:8,自引:2,他引:6 下载免费PDF全文
C Pasquinelli F Garreau L Bougueleret E Cariani K H Grzeschik V Thiers O Croissant M Hadchouel P Tiollais C Brchot 《Journal of virology》1988,62(2):629-632
Hepatitis B virus (HBV) DNA integration has been shown to occur frequently in human hepatocellular carcinomas. We have investigated whether common cellular DNA domains might be rearranged, possibly by HBV integration, in human primary liver tumors. Unique cellular DNA sequences adjacent to an HBV integration site were isolated from a patient with hepatitis B surface antigen-positive hepatocellular carcinoma. These probes detected rearrangement of this cellular region of chromosomal DNA in 3 of 50 additional primary liver tumors studied. Of these three tumor samples, two contained HBV DNA, without an apparent link between the viral DNA and the rearranged allele; HBV DNA sequences were not detected in the third tumor sample. By use of a panel of somatic cell hybrids, these unique cellular DNA sequences were shown to be located on chromosome 4. Therefore, this region of chromosomal DNA might be implicated in the formation of different tumors at one step of liver cell transformation, possibly related to HBV integration. 相似文献
4.
Two nuclear DNA binding proteins of Dictyostelium discoideum with a high affinity for poly(dA)-poly(dT). 总被引:6,自引:2,他引:4 下载免费PDF全文
Intergenic regions of the Dictyostelium genome contain an extremely high proportion of AT base pairs. Those intergenic regions which have been subjected to nucleotide sequence analysis are predominantly composed of alternating runs of poly(dA) and poly(dT) and there is evidence to suggest that nucleosomes do not form on such sequences. We have identified two nuclear proteins, of molecular weight 70,000 and 74,000 daltons, which bind only to intergenic regions of a cloned Dictyostelium gene. Binding is specifically inhibited in the presence of synthetic poly(dA) - poly (dT) as competitor. These proteins may play some role in the chromosomal organization of intergenic regions in Dictyostelium discoideum. 相似文献
5.
Metabolic regulation in enzyme-deficient red cells 总被引:1,自引:0,他引:1
6.
Inhibition of hepatitis B virus replication by the interferon-inducible MxA protein 总被引:30,自引:0,他引:30 下载免费PDF全文
Gordien E Rosmorduc O Peltekian C Garreau F Bréchot C Kremsdorf D 《Journal of virology》2001,75(6):2684-2691
7.
Proteolytic degradation of hemoglobin by endogenous lysosomal proteases gives rise to bioactive peptides: hemorphins 总被引:3,自引:0,他引:3
Hemorphin generation by mice peritoneal macrophages has been recently reported, nevertheless no conclusive data exist to localize clearly the macrophage proteolytic activity implicated in their generation. Because lysosomes are believed to be the main site of degradation in the endocytic pathway, we have studied their potential implication in the generation of hemorphins from hemoglobin. When this protein is submitted to purified rat liver lysosomes, an early generation of hemorphin-7-related peptides, detected by a radioimmunoassay, was observed. These peptides seemed to be relatively stable during the first hours of hydrolysis. 相似文献
8.
Sandell J Yu M Emond P Garreau L Chalon S Någren K Guilloteau D Halldin C 《Bioorganic & medicinal chemistry letters》2002,12(24):1195-3613
5-Methyl-6-nitroquipazine, a novel analogue of the potent and selective serotonin transporter inhibitor 6-nitroquipazine was synthesized and radiolabeled with tritium and the positron emitter carbon-11. [3H]5-methyl-6-nitroquipazine was found to have a Kd=51±7 pM. The high affinity and the facile labeling of [11C]5-methyl-6-nitroquipazine makes it a promising radioligand for visualization of the serotonin transporter with positron emission tomography. 相似文献
9.
Dupuis-Williams P Fleury-Aubusson A de Loubresse NG Geoffroy H Vayssié L Galvani A Espigat A Rossier J 《The Journal of cell biology》2002,158(7):1183-1193
Centrioles and basal bodies fascinate by their spectacular architecture, featuring an arrangement of nine microtubule triplets into an axial symmetry, whose biogenesis relies on yet elusive mechanisms. However, the recent discovery of new tubulins, such as delta-, epsilon-, or eta-tubulin, could constitute a breakthrough for deciphering the assembly steps of this unconventional microtubule scaffold. Here, we report the functional analysis in vivo of epsilon-tubulin, based on gene silencing in Paramecium, which demonstrates that this protein, which localizes at the basal bodies, is essential for the assembly and anchorage of the centriolar microtubules. 相似文献
10.
Jessica Lebenberg Alain Lalande Patrick Clarysse Irene Buvat Christopher Casta Alexandre Cochet Constantin Constantinidès Jean Cousty Alain de Cesare Stephanie Jehan-Besson Muriel Lefort Laurent Najman Elodie Roullot Laurent Sarry Christophe Tilmant Frederique Frouin Mireille Garreau 《PloS one》2015,10(8)
This work aimed at combining different segmentation approaches to produce a robust and accurate segmentation result. Three to five segmentation results of the left ventricle were combined using the STAPLE algorithm and the reliability of the resulting segmentation was evaluated in comparison with the result of each individual segmentation method. This comparison was performed using a supervised approach based on a reference method. Then, we used an unsupervised statistical evaluation, the extended Regression Without Truth (eRWT) that ranks different methods according to their accuracy in estimating a specific biomarker in a population. The segmentation accuracy was evaluated by estimating six cardiac function parameters resulting from the left ventricle contour delineation using a public cardiac cine MRI database. Eight different segmentation methods, including three expert delineations and five automated methods, were considered, and sixteen combinations of the automated methods using STAPLE were investigated. The supervised and unsupervised evaluations demonstrated that in most cases, STAPLE results provided better estimates than individual automated segmentation methods. Overall, combining different automated segmentation methods improved the reliability of the segmentation result compared to that obtained using an individual method and could achieve the accuracy of an expert. 相似文献