Whole-bodyγ-irradiation,food intake and glucuronic acid excretion in rats

Zusammenfassung Ganzkörperbestrahlung bei Ratten führt zur Verminderung der Futteraufnahme und zur Reduktion der ausgeschiedenen Glukoronide. Die Ausscheidung der Glukoronide erhöht sich nach dreitägigem Hunger.

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The Puerto Rico Nuclear Center is operated by the University of Puerto Rico under Contract No. AT-(40-1)-1833 for U.S. Atomic Energy Commission.     

Sur la caractérisation de dérivés guanidiques d'origine biologique par électrophorèse et chromatographie sur papier (chromatoélectrophorèse)

Summary Paper chromatography has been used in conjonction with electrophoresis in a perpendicular direction (chromatoelectrophoresis), in order to characterize various guanidoderivatives of biological interest and also citrulline. The isolation of definite spots can be obtained with a satisfactory selectivity by this procedure, at a higher speed than by bidimensional chromatography; and the use of a few coloured reactions (ninhydrine,Sakaguchi, diacetyle--naphtol andp-dimethylaminobenzaldehyde) on the same electrochromatogram has been successfully practised in this field.     

Alloantigens directed by the SL-A region control the mixed lymphocyte reaction in swine]

Immunizations between a pig bearing a recombined SL-A haplotype and related animals revealed serological defined antigens under the MLR region control. These antigens seemed to be carried by all types of lymphocytes so far studied, but with large quantitative differences. The blood nonadherent on nylon fiber lymphocytes carried very few antigens and platelets none at all. The data are compatible with the assumption that these newly discovered antigens are equivalent to the mouse Ia antigens.     

Dependence on age of methamphetamine-produced changes in thermoregulation and metabolism.

In contrast to juvenile mice, old mice treated with methamphetamine are unable to adequately mobilize their carbohydrate reserves. They cannot increase their overall metabolism and become hypothermic, while juvenile mice react with increased calorigenesis and hyperthermia.