| 1. |
- Akimov, D., et al.
(författare)
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Physics with WASA and PROMICE
- 1994
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Ingår i: Physics with GeV-particle beams, Juelich 1994. ; , s. 519-530
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Konferensbidrag (refereegranskat)
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| 2. |
- Ahlman, Håkan, 1947, et al.
(författare)
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Adrenocortical carcinoma--diagnostic and therapeutical implications.
- 1993
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Ingår i: The European journal of surgery = Acta chirurgica. - 1102-4151. ; 159:3, s. 149-58
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Tidskriftsartikel (refereegranskat)abstract
- To evaluate the results of treatment of a consecutive series of patients with adrenocortical carcinoma who presented during the six year period 1985 to 1991.
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| 3. |
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| 4. |
- Brabant, G, et al.
(författare)
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E-cadherin: a differentiation marker in thyroid malignancies.
- 1993
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Ingår i: Cancer research. - 0008-5472. ; 53:20, s. 4987-93
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Tidskriftsartikel (refereegranskat)abstract
- Loss of E-cadherin (uvomorulin), a Ca(2+)-dependent cell adhesion molecule required for normal epithelial function, has been attributed a pathogenetic role in tumor invasion. The expression of E-cadherin was studied in normal and neoplastic follicular epithelium of the human thyroid by Northern blot analysis and immunofluorescence on frozen tissue sections. In the normal thyroid (n = 10) and in benign thyroid disorders (n = 21; toxic diffuse goitre; multinodular goitre; follicular adenomas), E-cadherin mRNA levels were equally high and the follicles were generally stained, mainly along the lateral surface of the epithelial cells, by the anti-E-cadherin monoclonal antibody. In anaplastic thyroid carcinomas (n = 6) E-cadherin expression was very low or lacking. In papillary carcinomas (n = 23), E-cadherin mRNA levels varied from nearly normal to highly reduced, which roughly correlated with the overall immunofluorescence intensity. However, the immunostaining also revealed a heterogeneous "all-or-nothing" expression of E-cadherin among adjacent cells in the same tumor. In the follicular carcinomas (n = 9), E-cadherin mRNA levels were in general rather high but the immunostaining varied considerably. A few papillary and follicular tumors lacked immunoreactive E-cadherin in spite of high mRNA levels. In oxyphilic (Hürthle) cell tumors, comprising both adenomas (n = 4) and carcinomas (n = 2), E-cadherin immunoreactivity was reduced and distributed intracellularly rather than at the cell surface. The expression of E-cadherin in relapsing thyroid carcinomas and in tumors with metastatic spreading was, irrespective of the histiotype, low or lacking. Sequential Northern analysis revealed a close correlation between the expression levels of E-cadherin and the thyrotropin receptor. Together, the data suggest that in human thyroid malignancies both gene expression and posttranscriptional control of E-cadherin may be impaired.
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| 5. |
- HOLBACK, B, et al.
(författare)
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THE FREJA WAVE AND PLASMA-DENSITY EXPERIMENT
- 1994
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Ingår i: SPACE SCIENCE REVIEWS. - : KLUWER ACADEMIC PUBL. ; 70:3-4, s. 577-592
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Recension (övrigt vetenskapligt/konstnärligt)abstract
- The Wave Experiment, F4, on the Swedish/German satellite Freja, is designed to measure the electric wave fields up to 4 MHz, the magnetic wave fields up to 16 kHz and the plasma density and its relative variations up to 2 kHz. Six wave signals and four de
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| 6. |
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| 7. |
- Jansson, Magnus, et al.
(författare)
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Efficient Implementation of a Submodel for Composite Materials to be Combined with the FDTD-Algorithm
- 1994
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Ingår i: IEEE Transactions on Magnetics. - : IEEE Magnetics Society. - 0018-9464 .- 1941-0069. ; 30:5, s. 3188-3191
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Tidskriftsartikel (refereegranskat)abstract
- A submodel to be used for thin sheets of semiconducting materials in combination with the finite difference time domain algorithm for solving Maxwell's equations is derived. Emphasis is concentrated on accomplishing an efficient and robust algorithm. Stability properties of the combined model are also investigated
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| 8. |
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| 9. |
- Mölne, Johan, 1958, et al.
(författare)
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Adherence of RFD-1 positive dendritic cells to the basal surface of thyroid follicular cells in Graves' disease.
- 1994
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Ingår i: Autoimmunity. - 0891-6934. ; 17:1, s. 59-71
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Tidskriftsartikel (refereegranskat)abstract
- HLA-DR positive cells infiltrating Graves' thyroid tissue were examined for their expression of cell-specific immunological markers using light and electron microscopic immunostaining of frozen sections and isolated open thyroid follicles. Graves' glands (n = 21) were enriched of CD68 and Leu-M5/CD11c positive monocytes/macrophages as well as CD4 and CD8 lymphocytes. These cell types were distributed juxta-follicular as well as in other tissue areas. Only the RFD-1 antibody, considered to label antigen-presenting cells including dendritic cells, identified cells invariably located close to the interstitial follicular surface. After follicle isolation, RFD-1 cells were enriched compared to Leu-M5 cells and exclusively adherent to the follicular epithelium. The plasma membrane of RFD-1 positive cells were in intimate contact with the basolateral membrane of the thyrocytes, sometimes extending deeply into the intercellular space of the epithelium. Parallel labelling experiments suggested that the follicle-adhering RFD-1 cells also expressed HLA-DR. Our findings show that in human thyroid glands with Graves' disease RFD-1 positive cells with a dendritic morphology establish direct contact with the follicular epithelium. In view of the fact that both HLA-DR and RFD-1 are associated with antigen-presenting functions it is suggested that a direct interaction of dendritic cells with thyrocytes might be an important component of the autoimmune reaction in Graves' disease.
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| 10. |
- Mölne, Johan, 1958, et al.
(författare)
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Non-polarized cell surface expression of HLA-A,B,C and HLA-DR antigens in Graves' thyroid follicle cells.
- 1991
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Ingår i: Autoimmunity. - 0891-6934. ; 10:3, s. 189-99
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Tidskriftsartikel (refereegranskat)abstract
- The intrathyroidal distribution and cell surface location of HLA-A,B,C and HLA-DR antigens was studied in polarized thyroid follicle cells from Graves' (n = 11) and normal (n = 3) thyroid tissue, using light and electron microscopy. Cryosections and isolated, open follicle segments were incubated with monoclonal antibodies against HLA-A,B,C and HLA-DR antigens and with patient sera containing autoantibodies against the microsomal antigen/thyroperoxidase. Immunoreactivity for HLA-A,B,C and HLA-DR on isolated thyroid follicle cells was frequently detected in Graves' disease, but absent in normal glands. There was a large variation in the immunolabelling between follicles as well as between different glands. Both HLA-A,B,C and HLA-DR immunoreactivity were detected on the apical and the basal surface of the follicle cells. Microsomal antigen/thyroperoxidase immunoreactivity was restricted to the apical cell surface. In contrast to normal tissue, HLA-DR positive cells with a dendritic or macrophage-like morphology were frequent in Graves' tissue. These cells adhered directly to the basal surface of isolated follicle segments. We conclude that HLA antigens are, unlike thyroid-specific plasma membrane constituents, expressed in a non-polarized manner at the surface of the follicular epithelium. These observations might have implications on the immune recognition of thyroidal autoantigens in Graves' disease.
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