Lowering of blood ketone bodies induced by drugs preventing free fatty acid mobilization

Riassunto Vengono presentati alcuni dati che dimostrano come sostanze che abbassino il livello degli FFA plasmatici nei ratti diminuiscano anche il livello dei corpi chetonici. Viene discussa la possibilità che la formazione dei corpi chetonici possa dipendere dal controllo della liberazione degli FFA nel tessuto adiposo.

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Supported by a grant made from Public Health Service National Heart Institute, Dept. of Health Education and Welfare, National Institutes of Health, Bethesda, Md. 20014, USA (No. 1.R01.HE09971-01).     

The rapid formation of a large rotating disk galaxy three billion years after the Big Bang

Observations and theoretical simulations have established a framework for galaxy formation and evolution in the young Universe. Galaxies formed as baryonic gas cooled at the centres of collapsing dark-matter haloes; mergers of haloes and galaxies then led to the hierarchical build-up of galaxy mass. It remains unclear, however, over what timescales galaxies were assembled and when and how bulges and disks--the primary components of present-day galaxies--were formed. It is also puzzling that the most massive galaxies were more abundant and were forming stars more rapidly at early epochs than expected from models. Here we report high-angular-resolution observations of a representative luminous star-forming galaxy when the Universe was only 20% of its current age. A large and massive rotating protodisk is channelling gas towards a growing central stellar bulge hosting an accreting massive black hole. The high surface densities of gas, the high rate of star formation and the moderately young stellar ages suggest rapid assembly, fragmentation and conversion to stars of an initially very gas-rich protodisk, with no obvious evidence for a major merger.     

On the glutamine and γ-aminobutyric acid contents of various regions of the cat brain

Résumé Les auteurs ont déterminé par la méthode de la chromatographie à deux dimensions, la teneur en glutamine et en acide -aminobutyrique des différentes parties du cerveau du chat. La concentration la plus élevée de l'acide -aminobutyrique a été trouvé dans l'hypothalamus, tandis que celle de la glutamine a été constatée dans le noyau caudé. Les concentrations les plus basses de ces deux protéines apparaissent dans la substance blanche du cerveau.     

"数字地球"时代的我国西部可持续发展

“数字地球”作为新世纪信息时代的新目标和制高点,必将在西部大开发战略的实施过程中起到至关重要的作用。从“数字地球”的基本概念出发,应用“数字地球”的理论和技术,阐述了“数字地球”技术对西部大开发的战略意义和应用方向,为我国西部地区的可持续发展提供了新的思路和技术方法。     

Artifacts from agar-protein interaction simulating a bacterial growth in the haemocultures

Summary Some morphological, histochemical and biochemical properties of the particles taking origin from the polysaccharide-proteins interaction in the presence of platelets and lymphocytes are described.