منابع مشابه
Tumoral Growth
In addition to its well-known homoeostatic actions in the cardiovascular system, ET-1 has been shown to constitute a potent growth regulatory peptide in various tissues. We have studied the expression of ET-1 and its receptors (ETAr and ET-Br) in human meningiomas (n = 35) as well as their involvement in cellular growth. By PCR of reversetranscribed RNA we detected ET-1 mRNA in 91% (32 of 35), ...
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Three children aged 3-11 years had ultrasonography of the urinary tract for the investigation of dysuria and haematuria. A bladder mass was seen in these 3 children. One child had computed tomography scan, cystoscopy and bladder biopsy because rhabdomyosarcoma was considered. The biopsy revealed an inflammatory process. The urine culture of the other 2 children revealed E. coli. On ultrasonogra...
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Idiopathic tumoral calcinosis is an unusual benign condition characterized by the presence of calcified soft tissue masses of varying size around the joints. In this retrospective study,clinical data and radiological features of nine cases of idiopathic tumoral calcinosis are reviewed. Imaging features, particularly magnetic resonance imaging findings are detailed.
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Strong experimental evidence has indicated that tumor growth belongs to the molecular beam epitaxy universality class. This type of growth is characterized by the constraint of cell proliferation to the tumor border and the surface diffusion of cells at the growing edge. Tumor growth is thus conceived as a competition for space between the tumor and the host, and cell diffusion at the tumor bor...
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that metastasis often occurs early in tumor progression. In early stage breast cancer, for example, a significant percentage of patients exhibit circulating tumor cells (CTC's) and disseminated bone marrow tumor cells (DTC's) [1,2]. More direct experimental evidence for " early metastasis " has been observed in studies of transgenic mice expressing a cancer-causing oncogene where the primary ca...
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ژورنال
عنوان ژورنال: médecine/sciences
سال: 2014
ISSN: 0767-0974,1958-5381
DOI: 10.1051/medsci/20143004018