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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

Revealing the role of VEGFA in clear cell sarcoma of the kidney by protein-protein interaction network and significant pathway analysis.

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Despite clear cell sarcoma of the kidney (CCSK) being the second most common renal tumor in children, its mechanism has not yet been fully investigated. The aim of the present study was to investigate the potential role of vascular endothelial growth factor A (VEGFA) in CCSK development. Following

Whole body hyperthermia by extracorporeal circulation in spontaneously breathing sarcoma patients: hemodynamics and oxygen metabolism.

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OBJECTIVE This phase I study was performed to evaluate the feasibility and toxicity of a new method of extracorporeal perfusion-induced whole body hyperthermia (WBHT) in patients with advanced sarcoma avoiding the need of intubation and general anesthesia. METHODS One double-lumen femoral venous

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

beta-Adrenoreceptors reactivate Kaposi's sarcoma-associated herpesvirus lytic replication via PKA-dependent control of viral RTA.

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Reactivation of Kaposi's sarcoma-associated herpesvirus (KSHV) lytic replication is mediated by the viral RTA transcription factor, but little is known about the physiological processes controlling its expression or activity. Links between autonomic nervous system activity and AIDS-associated

Regulation of adenosine 3':5'-monophosphate content of rous sarcoma virus-transformed human astrocytoma cells. Effects of cholera toxin on the responsiveness to catecholamines and prostaglandins.

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Human astrocytoma cells (EH118MG) respond to catecholamines and prostaglandins with a marked increase in the rate of formation of cyclic AMP. Treatment of EH118MG cells with cholera toxin (10 to 100 ng/ml) for 45 to 60 min caused an increase in cellular cyclic AMP content (5- to 10-fold over basal).

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

Expression of mRNAs for neuropeptide receptors and beta-adrenergic receptors in human osteoblasts and human osteogenic sarcoma cells.

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In human periosteum-derived osteoblastic cells (SaM-1) and human osteosarcoma-derived cells (SaOS-2, HOS, MG-63), the mRNA expressions of calcitonin gene-related peptide receptor (CGRP-R), substance P receptor (SP-R), neuropeptide Y receptor (NPY-R), beta-adrenergic receptors (beta1-R, beta2-R,

Feeding elicited by cholinergic and adrenergic hypothalamic stimulation of anorectic tumor-bearing rats.

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Injection of norepinephrine into the hypothalamus of methylcholanthrene sarcoma-bearing rats elicited a normal feeding response both prior to and following the development of anorexia. Feeding elicited by cholinergic stimulation of the hypothalamus of tumor-bearing rats with carbachol was normal

Specific uptake of m-[125I]iodobenzylguanidine in the human neuroblastoma cell line SK-N-SH.

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The uptake of m-[125I]iodobenzylguanidine (mIBG), a compound structurally analogous to the antihypertensive drug guanethidine, was examined in various human cell lines. Of three neuroblastoma lines, SK-N-LO, IMR-32, and SK-N-SH, only the last showed specific uptake of the compound. In contrast, only

Vasoactive drugs produce selective changes in flow to experimental brain tumors.

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Most vasoactive drugs do not readily penetrate the blood-brain barrier and do not affect cerebral blood flow. We tested the hypothesis that vasoactive drugs may alter blood flow to brain tumors in which the blood-brain barrier is abnormal. Blood flow was measured with microspheres in dogs with brain

Changes in brain amines associated with cancer anorexia.

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Analysis of indole amine metabolism within acute (Walker 256 carcinosarcoma) and chronic (methycholanthrene-induced sarcoma) animal models of cancer anorexia demonstrated elevated levels of plasma free tryptophan, whole brain tryptophan, serotonin and 5-hydroxyindoleacetic acid in anorectic

Effects of tumor-load and malnutrition on myocardial function in the isolated working rat heart.

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Marked differences in cardiac associated morbidity and mortality have been reported between patients with and without malnutrition. Tumor-associated cachexia may impair heart function, which further aggravate host wasting and thereby create a vicious circle. The aim of this study was to evaluate to

PET/CT in pediatric oncology.

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Radionuclide functional imaging has become a central part of pediatric oncological practice. There have been a number of major advances in imaging technology in recent years, but multislice CT with PET is the modality generating most interest in cancer imaging. In this review, we discuss the common

[Increase of excretion of urinary catecholamines and its catabolites in a case of pulmonary sarcomatous tumor].

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A five-year-old child presented with a large undifferentiated sarcoma in the right lung. Urinary catecholamines were assayed as tumor markers. A short-lived but significant rise in urinary norepinephrine and dopamine followed by rises in urinary levels of corresponding breakdown products were

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