Simuliids larvae microsporidans: ultrastructural data (author's transl)

This work is the summary of our present knowledge about the ultrastructure of Simuliids larvae Microsporidans, including several new data concerning: 1. Pleistophora simulii (Lutz et Splendore, 1904): reticulated or net-like plasmodial envelope, formation of pansporoblastic structures looking like short pipes. 2. Stempellia simulii Maurand et Manier, 1968: plasmodial envelope as Pleistophora simulii, granular-textured polaroplast. 3. Thelohania fibrata (Strickland, 1913): ultrastructural study of the sporogonic sequence nerve done so far. 4. Thelohania bracteata (Stickland, 1913): its relations with Thelohania minuta, T. canningi, Amblyospora bracteata, Pegmatheca simulii. 5. Tuzetia debaisieuxi (Jirovec, 1943): formation of pseudopansporoblasts by the host-cell membrane.     

Origin of cutaneous smooth muscles in birds (author's transl)

The origin of smooth muscles in the skin of bird embryos has been analyzed in heterospecific quail/chick recombinants. The somitic mesoderm of the wing level of 2-day chick embryos was replaced by homotopic or heterotopic somitic mesoderm from quail embryos. The cellular constitution of tissues was observed in twelve recombinant embryos at 17 or 18 days of incubation. Results show that feather smooth muscles and vascular smooth muscles have the same origin as the cutaneous mesenchyme in which they differentiate. They are of somatopleural origin in the wing integument and of somitic (dermatomal) origin in the dorsal integument. This study further reveals that the muscular and connective tissue wall of blood vessels does not have the same embryonic origin as the endothelium. It is suggested that the latter originates from the primitive aorta.     

Quantitative analysis of fibrinmonomer in Arwin-therapy (author's transl)

The quantitative measurement of plasma fibrin monomeres in three patients with Arwin-treatment by affinity chromatography on agarose fixed fibrinogen and the "tüpfel method" demonstrated high specifity and sensitivity. Plasmafibrinmonomer concentration clearly differs both before and during treatment from results reported in the literature. The method results in a better control of dangerous situation, especially with additional application of fibrinolytic agents.