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E Dahme

Publications and source records attributed to E Dahme.

67 records · Page 4Linked to original sources
PubMed1967

Comparative studies of atherosclerosis in swine.

A survey of spontaneously occurring fatty streaks and fibrous plaques, considered as atherosclerosis, in 1637 swine in different European countries and the USA, using a standardized procedure, was undertaken to determine whether significant differences exist in the occurrence and extent of the disease in various groups of animals. At the same time a preliminary study on the possible relation of any differences observed in atherosclerosis to certain environmental and constitutional factors was carried out with the ultimate goal of contributing to the understanding of analogous problems in man.STATISTICALLY SIGNIFICANT INCREASES OF FATTY STREAKS AND FIBROUS PLAQUES WERE NOTED IN RELATION TO: (a) increasing age, starting at 6 to 7 months, the earliest age period studied; (b) geographical locality; and (c) considerable as compared with moderate or slight physical activity at 1 year of age. Although not statistically significant, there was also a suggestive trend towards more atherosclerosis in pigs consuming soft water as compared with those consuming hard water.While these correlations may represent contributory factors to the increases of the changes noted in the abdominal aortas, it is not possible to pinpoint the importance of individual components because of the limited data and the large number of variables involved in this preliminary study. Studies in swine and other animals are being encouraged in which all variables but one are being kept constant to determine their possible role in the development of atherosclerotic lesions.

Age Factors↗
PubMedDate not supplied

Ultrastructure of retinal pigment epithelial and neural cells in the neuronal ceroid-lipofuscinosis affected Dalmatian dog.

Ubiquitous accumulation of lipopigments, entailing lamellar, fingerprint, and curvilinear bodies in varying cell types of the retina, and, in addition, peculiar circular inclusions within retinal pigment epithelial cells in the retina of two Dalmatian dogs afflicted with neuronal ceroid-lipofuscinosis, emphasize the identity of its retinal ultrastructural pathology to that observed in NCL-affected English setters, while the retinal layers appear largely preserved. The circular inclusions in RPE cells are unique to canine NCL; they are not encountered in human NCL, nor in primary non-NCL retinal dystrophies of other canine species. Their origin and pathogenesis, so far, remain subject to speculation, rather than to convincing explanation.

Animals↗
PubMedDate not supplied

Immunological aspects of experimental brain tumors (review).

Evidence that experimental neural tumors contain glia specific and glioma-associated antigens is reviewed. The fact that glioma cells share antigens with normal glia cells is of crucial importance for the histogenetic immunodiagnosis of intracranial neoplasms. Moreover, the increasing use of in vitro techniques in neuro-oncology has accentuated the necessity for employment of cell-type characteristic antigens. This allows for objective identification of the various types of brain tumor cells, and also for ascertaining the neurological nature of long-term cultured cells. Humoral and cell-mediated immune reactions to gliomas could be demonstrated in autochthonous and syngeneic hosts. Since glioma-associated antigens are rather weak and glioma cells are low immunogens, various approaches for enhancing glioma-cell immunogenicity have been described, such as treatment with membrane-modifying enzymes, or haptenization with various chemicals. Recently, nitrophenylation of glioma cells has become available for artificially increasing the immunogenicity of these cells. Furthermore, methods have recently been worked out by which monoclonal antibodies of predefined specificity can be produced in order to analyze the nature of glioma-associated antigens. Such methods may have a significant impact on clinical immunodiagnostics, and perhaps on the development of new immunotherapeutic approaches.

Animals↗