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At least 505 records · Page 28Linked to original sources
PubMed1996

[Lymphangioleiomyomatosis--a rare disease of the lymphatic system].

Lymphangioleiomyomatosis is a rare disease with proliferation of smooth muscle cells within the lymphatics, mediastinal and retroperitoneal lymph nodes and in the lungs. The clinical symptoms are increasing dyspnea, chylous effusion, intestinal obstruction and thoracic or abdominal pain. The authors report the case of a 42-year-old woman who primarily suffered from thoracic pain, dyspnea and chylous effusion. In further examinations we discovered a leftsided retroperitoneal tumor and a tumor in the mesentery. The diagnostic difficulties experienced are described and the necessity of explorative laparotomy for definite diagnosis is demonstrated. Furthermore, the article provides a review of the latest developments in pathology, diagnostics and therapy.

Adult↗
PubMed1992

Immunological detection of the oestradiol receptor protein in cell lines derived from the lymphatic system and the haematopoietic system: variability of specific hormone binding in vitro.

Extracts of human MCF 7 mammary carcinoma cells, the human lymphoblastoid cell lines AEH 1 and IM 9, T-cell derived CCRF cells, HL 60 myeloic leukaemia cells and murine myeloma cells SP 0 and NS I were analysed for immunoreactivity with polyclonal goat antibodies raised against homogeneous preparations of C-terminal fragments (32 kDa) of porcine uterine oestradiol receptor (ER). Whole cells and low speed cytosols were analysed for specific oestradiol-binding activity. ERs were enriched from cell extracts by either fractionated ethanol precipitation (0-25% (v/v) ethanol) and/or microscale-immunoaffinity chromatography. Immunoreactive proteins of identical molecular weight (approximately 65 kDa) were detected in all cell lines examined. Whole cell binding assays showed specific oestradiol-binding activity in MCF 7, IM 9 and CCRF cells. Borderline binding was found in HL 60 myeloid cells. No specific binding could be detected in AEH 1, NS I and SP 0 cells. Identical results were obtained using agar-electrophoresis after dextran-coated charcoal treatment. Immunoaffinity purified ERs from MCF 7, AEH 1 and HL 60 cells were subjected to limited proteolysis, where identical tryptic fragments were generated. In conclusion, we have confirmed by immunological methods that ERs are expressed in a variety of cell lines derived from the immune system and the haematopoietic system. The lack of specific hormone binding or very low-affinity hormone binding in some of the cells examined may be due to post-translational events or point mutations.

Blotting, Western↗
PubMed1980

The renal cortical lymphatic system in dogs with unimpeded lymph and urine flow.

The distribution and extent of the lymphatic circulation in the renal cortex was analyzed in three dogs under conditions of unimpeded lymph and urine flow. The kidneys were drip fixed with acrolein in vivo, and cortical tissue strips were prepared for light and electron microscopic examination. Analysis of 90 tissue strips revealed 38 cortical lymphatics, one third of which were intralobular in position. The intralobular lymphatic capillaries were related primarily to tubules, afferent arterioles, or renal corpuscles. The remainder of the lymphatics were located in interlobular connective tissue areas in association with the interlobular blood vessels. Interlobular lymphatics had a surface area twice that of intralobular vessels. Stereological analysis was used to estimate the volume density of the components of the renal cortex. The volume density of lymphatics was found to be 0.0014, but because of the relative infrequency of lymphatics, this value was considered to be approximate. The volume density data for non-lymphatic renal components were found to be in close agreement with published data. From these volume density values it was concluded that the volume of cortical lymph in a functioning dog kidney is equivalent to about 1% of the volume of blood in the cortical peritubular capillaries.

Animals↗