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Additional studies on the effects of neonatal thymectomy and lactate dehydrogenase virus infection on mice 总被引:1,自引:0,他引:1
Zusammenfassung Die gegebenen Befunde lassen vermuten, dass neonatale Thymektomie und/oder Infektion mit LDH-Virus einen Effekt auf eine Anzahl von Faktoren wie LDH-Plasma-Spiegel, Gewichtserhöhung und Lebensdauer in Mäusen hervorrufen können. Der Virustiter im Plasma ist vom Zeitpunkt der Infektion abhängig.
Supported by Public Health Service research grant No. 5 R01 CA05742-06 from the National Cancer Institute. 相似文献
Supported by Public Health Service research grant No. 5 R01 CA05742-06 from the National Cancer Institute. 相似文献
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High acetone levels occur in uncontrolled diabetes and after isopropanol administration to rats. In both conditions, very low density lipoproteins (VLDL) secretion is depressed. Acetone, hoever, failed to affect the VLDL secretion rate by the isolated perfused rat liver, suggesting that this metabolite is not involved in impaired VLDL production in diabetes and after isopropanol administration. 相似文献
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Solid materials with uniform micropores, such as zeolites, can act as selective catalysts and adsorbents for molecular mixtures by separating those molecules small enough to enter their pores while leaving the larger molecules behind. Zeolite A is a microporous material with a high void volume. Despite its widespread industrial use in, for example, molecular separations and in detergency, its capability as a petroleum-refining material is limited owing to its poor acid-catalytic activity and hydrothermal stability, and its low hydrophobicity. These characteristics are ultimately a consequence of the low framework Si/Al ratio (normally around one) and the resulting high cationic fraction within the pores and cavities. Researchers have modified the properties of type-A zeolites by increasing the Si/Al compositions up to a ratio of three. Here we describe the synthesis of zeolite A structures exhibiting high Si/Al ratios up to infinity (pure silica). We synthesize these materials, named ITQ-29, using a supramolecular organic structure-directing agent obtained by the self-assembly, through pi-pi type interactions, of two identical organic cationic moieties. The highly hydrophobic pure-silica zeolite A can be used for hydrocarbon separations that avoid oligomerization reactions, whereas materials with high Si/Al ratios give excellent shape-selective cracking additives for increasing propylene yield in fluid catalytic cracking operations. We have also extended the use of our supramolecular structure-directing agents to the synthesis of a range of other zeolites. 相似文献
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G. Renaud F. Beauge C. Rey R. Infante 《Cellular and molecular life sciences : CMLS》1979,35(6):738-739
Summary High acetone levels occur in uncontrolled diabetes and after isopropanol administration to rats. In both conditions, very low density lipoproteins (VLDL) secretion is depressed. Acetone, however, failed to affect the VLDL secretion rate by the isolated perfused rat liver, suggesting that this metabolite is not involved in impaired VLDL production in diabetes and after isopropanol administration. 相似文献
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Louis Rey 《Cellular and molecular life sciences : CMLS》1965,21(5):241-246
Summary A new development is made to enlarge the field of lyophilization using non-aqueous media. Unstable compounds are preserved
by freezing and drying their solutions in organic solvents. The same technique applied to chemicals dissolved in liquid ammonia
enables the preparation of stable concentrated free radicals, due to the very low temperature of sublimation of frozen NH3. Finally, experiments are made demonstrating the possibilities of high velocity, low temperature sublimation of solutions
in solid CO2 at normal atmospheric pressure.
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A.I. Camacho A. Brancelj B.A. Dorda A. Casado I. Rey 《Journal of Natural History》2016,50(43-44):2691-2726