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61.
62.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):295-297
Nuclear medicine hybrid imaging is a technological evolution of gamma camera scintigraphy or positron emission tomography imaging methods that are now often coupled with an anatomical imaging device, essentially a CT scanner. Following a large demand from the nuclear physicians themselves, but also from the French Nuclear Safety Authority, this guide is intended for the entire nuclear medicine community to integrate both the aspects of radiation protection related to coupled CT and those related to the quality of the CT images according to the clinical context. 相似文献
63.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):298-313
Many parameters can affect the patient's dose and the CT image quality. It is therefore essential, in order to optimize the patient's dosimetry, to know the influence of these parameters as well as their link with the dose modulation tools. 相似文献
64.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):342-353
The examples and clinical cases presented in this section are not intended to be considered as absolute models in terms of image quality or device parameter settings. They must initiate an individual analysis according to CT parameters and image quality. Nevertheless, they present practically different CT levels, which can be used according to the clinical context and the type of device. 相似文献
65.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):354-358
The examples and clinical cases presented in this section are not intended to be considered as absolute models in terms of image quality or device parameter settings. They must initiate an individual analysis according to CT parameters and image quality. Nevertheless, they present practically different CT levels, which can be used according to the clinical context and the type of device. 相似文献
66.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):359-366
The examples and clinical cases presented in this section are not intended to be considered as absolute models in terms of image quality or device parameter settings. They must initiate an individual analysis according to CT parameters and image quality. Nevertheless, they present practically different CT levels, which can be used according to the clinical context and the type of device. 相似文献
67.
G. Bonardel C. Barrau M. Soussan E. D’Estanque B. Erra C. Etard N. Fayard M.O. Habert S. Hapdey E. Hindie F. Hyafil C. Labriolle Vaylet O. Lairez P.Y. Leroux P. Olivier M. Queneau E. Rust R. Seban M. Wartski 《Médecine Nucléaire》2018,42(5):370-378
The examples and clinical cases presented in this section are not intended to be considered as absolute models in terms of image quality or device parameter settings. They must initiate an individual analysis according to CT parameters and image quality. Nevertheless, they present practically different CT levels which can be used according to the clinical context and the type of device. 相似文献
68.
Amiloride does not alter NaCl avoidance in Fischer-344 rats 总被引:2,自引:2,他引:0
Fischer-344 (F-344) rats differ from other common rat strains in that they
fail to show any preference for NaCl at any concentration in two- bottle
preference tests. Because 100 microM amiloride partially blocks the
NaCl-evoked chorda tympani (CT) response in electrophysiological studies,
we tested NaCl preference (0.068-0.273 M) in F-344 rats with and without
100 microM amiloride solution as the solvent. A third group was tested with
unadulterated NaCl solutions following CT transection. Amiloride had no
significant effect on the NaCl preference-aversion function, whereas CT
transection significantly reduced NaCl avoidance. These results suggest
that the amiloride-sensitive component of the NaCl response is not
necessary for F-344 rats to display avoidance of NaCl, but the entire CT
input is.
相似文献
69.
Compartmentation of protein folding in vivo: sequestration of non-native polypeptide by the chaperonin-GimC system. 总被引:2,自引:0,他引:2 下载免费PDF全文
K Siegers T Waldmann M R Leroux K Grein A Shevchenko E Schiebel F U Hartl 《The EMBO journal》1999,18(1):75-84
The functional coupling of protein synthesis and chaperone-assisted folding in vivo has remained largely unexplored. Here we have analysed the chaperonin-dependent folding pathway of actin in yeast. Remarkably, overexpression of a heterologous chaperonin which traps non-native polypeptides does not interfere with protein folding in the cytosol, indicating a high-level organization of folding reactions. Newly synthesized actin avoids the chaperonin trap and is effectively channelled from the ribosome to the endogenous chaperonin TRiC. Efficient actin folding on TRiC is critically dependent on the hetero-oligomeric co-chaperone GimC. By interacting with folding intermediates and with TRiC, GimC accelerates actin folding at least 5-fold and prevents the premature release of non-native protein from TRiC. We propose that TRiC and GimC form an integrated 'folding compartment' which functions in cooperation with the translation machinery. This compartment sequesters newly synthesized actin and other aggregation-sensitive polypeptides from the crowded macromolecular environment of the cytosol, thereby allowing their efficient folding. 相似文献
70.
In filamentous ascomycetes, HOG-like signal transduction cascades are involved in the resistance to hyper-osmotic conditions and to dicarboximides and phenylpyrroles. The histidine kinase (HK) Bos1 and the mitogen-activated protein kinase (MAPK) Sak1 are important for the adaptation to hyper-osmotic and oxidative stress, development, and pathogenicity in the phytopathogenic fungus Botrytis cinerea. However, bos1Δ and sak1Δ mutants created previously, also presented different phenotypes, especially the sak1Δ mutants were not resistant to high fungicide concentrations. Since both single mutants were constructed in different parental strains, phenotypic variations due to the genetic background might be suspected. In order to establish the relationship between both protein kinases, we analyzed Sak1 phosphorylation under the control of the Bos1 HK and we realized epistasis analysis between bos1Δ and sak1Δ mutations through the construction of isogenic single and double mutants. Our results show that Bos1 negatively regulates Sak1 phosphorylation and that Bos1 regulates certain phenotypes independently of Sak1. They include fungicide susceptibility, adaptation and conidiation on high neutral osmolarity. 相似文献