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T Schramm

Publications and source records attributed to T Schramm.

At least 91 records · Page 5Linked to original sources
PubMed1976

[Morphological studies on cellfree induced sarcomas in syrian hamster (author's transl)].

Morphological studies on sarcomas induced in syrian hamsters by cellfree transmission are described. The tumour tissue for the cellfree preparations stemmed from a sarcoma, containing C-particles. Basically, three histological groups have been distinguished: 1. neoplasms of the peripheral nerve-sheath, 2. undifferentiated sarcomas, and 3. liposarcomas. Furthermore, a rhabdomyosarcoma, an angiosarcoma and, in a heterotransfection on rat, an osteosarcoma have been established. The great majority of tumours could be transmitted by cellfree preparations. To this neoplasms belong the undifferentiated histological structure.

Animals↗
PubMed1976

[Substances with carcinogenic activity (second edition) (author's transl)].

A list of substances with carcinogenic activity is presented as a 2nd supplemented edition. The list includes synonyma and test routes of the substances and should be looked as information material for employers and managers in various fields of industry, agriculture etc., hygiene and occupational and health service. The list is available as a paper-back (265 pages).

Animals↗
PubMed1976

[Sarcomas in syrian hamster, induced by an oncorna virus and cellfree transmissible (author's transl)].

1. Application of hamster papova virus to newborns of Syrian hamster has produced some s.c. sarcomas after a 5 to 6 month latency period, by virtue of the strong inducer effect of this papova virus to endogenous (latent) oncorna viruses. 2. Cellfree filtrates from a polymorphorus-cell sarcoma produced in this way, when applied to newborn hamsters of the spontaneously tumour-free hamster line HaP, again lead to sarcoma formation after a latency period of 3--8 months in about 20% of the animals; the same holds for cellfree filtrates of these cellfree induced sarcomas and their transplantation generations. 3. In these tumours C-type oncorna viruses, but no papova virus, could be demonstrated regularly. 4. The hamster specificity of this sarcoma virus is suggested by the complete absence of a tumorigenic effect of the cellfree filtrates from these hamster sarcomas in mice and rats. The preferential induction of hamster sarcomas by sarcoma filtrates, in conjunction with the fact that filtrates from hamster leukoses, indicates a certain difference between hamster leukemia and hamster sarcoma viruses.

Animals↗