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Side 1 fra 21 resultater
Decrease in dopamine and norepinephrine concentration in different brain regions of mice during progression of Sarcoma 180 tumour.
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The distribution and concentration of dopamine (DA) and norepinephrine (NE), the catecholamine neurotransmitters, were studied in discrete brain areas of Sarcoma 180 tumour bearing mice. With the progression of tumour, marked depletion of DA and NE concentration was observed in some brain areas
Neuropeptide Y inhibits vasoactive intestinal peptide- and dopamine-induced cyclic AMP formation in human Ewing's sarcoma WE-68 cells.
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Neuropeptide Y (NPY) regulation of intracellular cyclic AMP accumulation was studied in human Ewing's sarcoma cell line, WE-68. NPY inhibited vasoactive intestinal peptide (VIP)- and dopamine-stimulated but not basal cyclic AMP formation. The peptide effect was rapid (less than 2 min),
Induction of glycogenolysis in cultured Ewing's sarcoma cells by dopamine and beta-adrenergic agonists.
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This study describes hormonal regulation of glycogen metabolism in Ewing's sarcoma cells. 3H-Glycogen synthesized in cultured Ewing's sarcoma WE-68 cells from 3H-glucose was hydrolyzed in a concentration-dependent manner by various catecholamines. The order of potency for the glycogenolytic effects
Regulation of Kaposi's sarcoma-associated herpesvirus reactivation by dopamine receptor-mediated signaling pathways.
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BACKGROUND
Kaposi's sarcoma-associated herpesvirus (KSHV) possesses two distinct life cycles, lytic replication and latency. An immediate early viral protein, Replication and transcription activator (RTA), is responsible for the virus switch from latency to active replication.
METHODS
To identify
Effects of intravenous infusion of dopamine on tumor blood flow in rat subcutis.
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To determine the effects of intravenous administration of dopamine hydrochloride (DA) on tumor blood flow (TBF), we measured the blood flow of normal subcutaneous tissue and subcutaneous tumor (LY-80, a variant of Yoshida sarcoma) in enflurane-anesthetized male Donryu rats using a hydrogen clearance
Ultrastructural, biochemical, and cell-culture studies of a presumed extraskeletal Ewing's sarcoma with special reference to differential diagnosis from neuroblastoma.
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The history of a 6-year-old girl with a tumor originating from thoracic spine and finally becoming resistant to surgery, radio-, and chemotherapy is reported. Tumor-biopsy material was studied by light and electron microscopy, in cell culture, by acetylcholinesterase ultracytochemistry, and by
[Acute respiratory failure in a 16-yr-old girl with alveolar soft part sarcoma].
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BACKGROUND
Intensive treatment in oncology often leads to severe complications, including infection and coagulation disturbances. Among the most serious are fungal infections which are often life-threatening, and difficult to recognize and treat. We present a patient with severe pneumonia and
[Immunocytochemical and biochemical studies of an Ewing sarcoma cell line: evidence for neural differentiation in vitro].
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A cell line established from a Ewing's sarcoma removed from the fibula of a 19-year-old female was investigated for morphology and hormone sensitivity. Cells in culture expressed neurofilaments and showed positive immunostaining for neuron-specific enolase (NSE), Leu-7-antigen (HNK-1) and S-100
High-dose recombinant tumor necrosis factor alpha in combination with interferon gamma and melphalan in isolation perfusion of the limbs for melanoma and sarcoma.
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OBJECTIVE
To determine the toxicity and the therapeutic efficacy of the combination of the recombinant tumor necrosis factor alpha (rTNF alpha), recombinant interferon gamma (rIFN-gamma), and melphalan, we designed a protocol using isolation limb perfusion (ILP) with hyperthermia for in-transit
Serotonin and Dopamine Receptor Expression in Solid Tumours Including Rare Cancers.
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In preclinical studies serotonin stimulates and dopamine inhibits tumour growth and angiogenesis. Information regarding serotonin and dopamine receptor (5-HTR and DRD) expression in human cancers is limited. Therefore, we screened a large tumour set for receptor mRNA overexpression using functional
Case report of sarcoma of the sella caused by postoperative radiotherapy for a prolactin-producing pituitary adenoma.
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We report a case of sarcomatous transformation of a prolactin (PRL)-producing pituitary adenoma in a 27-year-old man. He originally presented with bitemporal visual disturbance, headache, and hyperprolactinemia 8 years earlier. Tumor shrinkage was confirmed by magnetic resonance imaging (MRI) during
The impact of standard and autohemochemotherapy for catecholamine levels in the spleen and thymus of rats with sarcoma-45.
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The aim of this study was to detect specific features of the effects of the blood-drug complex on catecholaminergic activity of the thymus and spleen. Catecholamine content was quantitatively measured by modified highly sensitive fluorometric method. Standard cyclophosphamide therapy led to tissue
Ventromedial nucleus of hypothalamus is related to the development of cancer-induced anorexia: in vivo microdialysis study.
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Based on reports that increased hypothalamic ventromedial nucleus (VMN)-serotonin (5-HT) is associated with cancer anorexia and recent findings in our laboratory that low levels of dopamine (DA) in the VMN are associated with prolonged inter meal intervals thus decreased food intake, and reports
Evaluation of dimethoxydop-NU as a novel anti-tumor agent.
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Dimethoxydop-NU, 1-[2-{3-(2-Chloroethyl)-3-nitrosoureido}ethyl]-3,4-dimethoxy-benzene (Compound 1), was synthesized from 3,4-dimethoxy-phenethylamine as a novel anti-tumor agent based on the structures of the clinical drug CCNU and dopamine, an important endogenous biological amine having
Serotonin as a major serum factor inducing the phospholipase C-mediated hydrolysis of phosphoinositides in normal rat kidney cells.
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Calf serum induced the phospholipase C-mediated hydrolysis of phosphoinositides in normal rat kidney (NRK) cells transformed by a temperature-sensitive Kirsten murine sarcoma virus (tsK-NRK cells). Various growth factors known to induce the phospholipase C reactions in other cell types, such as
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