[Functional and histological findings of the islets of Langerhans in mice after fractioned telecobalt irradiations with tumor doses (author's transl)].
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Biomedical subjects
Publications and source records attributed to C Kraft.
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An intensive study of the family history of cancer in 4,515 patients screened consecutively by a multiphasic mobile cancer detection unit showed, after age correction, that cancer had developed in 8.9% of the probands when there was one cancer in a single first-degree relative, 16.2% had cancer with two family members affected, and 27.4% had cancer when three or more family members had been affected. This constituted a significant correlation between family and personal histories of cancer in these patients. Extrapolation to the United States population with cancer-control implications are given.
Actual HL-A typing has been performed on 115 members of cancer family N, a large kindred (over 1000 members ascertained) showing the findings consistent with the cancer family syndrome. In the cancer-prone line (branches C and D) of the family, 20 of 21 members with cancer had one HL-A haplotype, HL-A2-HL-A12 (relative odds = 6.30), including some decreased family members who had haplotypes assigned. Eleven of 12 family members with cancer in branches C and D, actually typed, had HL-A2-HL-A12 (relative odds = 6.06). The single exception showing cancer and another haplotype in branch D is a child of a family member with haplotype HL-A2-HL-A12.
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INTRODUCTION: The amount of extravasated eosinophil leukocytes in soft tissue surrounding a metallic orthopaedic implant indirectly allows conclusions about the allergenicity of the implant. As yet the implications of the distance of the biopsy from the implant have not been studied. METHODS: In a prospective study we histocytologically evaluated soft tissue biopsies gained during routine removal of orthopaedic implant material in 81 patients. By means of a quantitative and semiquantitative method, material directly adjacent to and 1 cm distant from the implant was examined for eosinophil leukocytes. RESULTS: In respect to the number of eosinophil granulocytes, the two groups showed no significant discrepancies (p = 0.55). lnterestingly, correlation analysis revealed a significant difference in the number of eosinophiles between implant-adjacent and -distant tissue in some individuals. Consecutive semiquantitative analysis could show that there was no correlation concerning the number of eosinophiles between results gained at 1 cm distance from the implant and material in the direct vicinity of the biomaterial. CONCLUSION: Our results suggest that when utilising a histocytological method to determine metal sensitivity of a biomaterial on surrounding soft tissue, not only material directly adjacent to the implant but also at a distance of approximately 1 cm should be evaluated.
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