Modifications by Nematoda of the sensitivity of mice to Salmonella abortus ovis administered orally or subcutaneously]

Mice inoculated 6 to 9 days previously with Heligmosomoides polygyrus (=Nematospiroides dubius) become more frequently infected than controls after an oral challenge with a constant dose of Salmonella abortus ovis. But parasitism increases the LD 50 when the subcutaneous route of infection is used, probably by stimulating the immune system of the host.     

The influence of antidepressant drugs on akinesia produced in mice by intracisternally administered noradrenaline,dopamine and noradnamine

Zusammenfassung Die Hemmung psychopharmakologischer Noradrenalin-, Dopamin- und Noradnaminwirkungen durch Antidepressiva wird beschrieben, wobei die beiden verwendeten Antagonisten bestimmt verschiedene Wirkungsmechanismen haben.     

Role of a free-living amoeba from water, Acanthamoaba castellani, in the transport of naked or enveloped animal viruses

The trophozo?ts of Acanthamoeba castellanii are unable to adsorb poliovirus or vesicular stomatitis Virus. After encystment in medium containing respectively 5.4 x 10(8) and 3 x 10(9) P.F.U./ml cysts did not contain Viruses. These data do not agree with a current hypothesis by which water's free Amoeba could carry animal Viruses.     

Oestrogen antagonisms: the effects of various steroids on the uterine growth produced in mice by oestriol

Zusammenfassung Das in juvenilen Mäusen durch Oestriol (100 µg) stimulierte Uteruswachstum wurde durch Testosteronpropionat blockiert. Mit Cortisonacetat, Cortisolacetat, Deoxycorticosteronacetat und Progesteron wurde keine solche Wirkung erzielt.