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Glucagon and epinephrine effect on blood glucose levels in rats carrying Yoshida solid sarcoma and Walker-256 carcinosarcoma.

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Changes in blood glucose in response to glucagon and epinephrine administration, in rats bearing Yoshida solid sarcoma and Walker-256 carcinosarcoma have been studied, and in rats carrying Yoshida tumor which had received previously intraperitoneal glucose. The response to glucagon by tumor-bearing

Signal transduction system for interleukin-6 and interleukin-11 synthesis stimulated by epinephrine in human osteoblasts and human osteogenic sarcoma cells.

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Epinephrine increased gene- and protein-expression of interleukin-6 (IL-6) and interleukin-11 (IL-11), which are capable of stimulating the development of osteoclasts from their hematopoietic precursors, in human osteoblast (SaM-1) and human osteosarcoma (SaOS-2, HOS, and MG-63) cell lines. An

Microvascular mechanisms of change in tumor blood flow due to angiotensin II, epinephrine, and methoxamine: a functional morphometric study.

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To elucidate the microvascular mechanisms of change in tumor blood flow elicited by vasopressors, a functional morphometric study of the s.c. microcirculation within a rat transparent chamber was performed. Arteriolar vessels were classified centripetally (a2-a5) according to Strahler's method.

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

[Systemic mastocytosis. Classification, symptoms, therapy].

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BACKGROUND Systemic mastocytoses are a group of diseases, which are characterized by accumulation and unusual growth of mast cells infiltrating two different organs or types of tissue. Two case reports are introduced. METHODS According to the new WHO classification of 2000, mastocytoses are

Similarity of host responses elicited by polysaccharides of animal and plant origin and by bacterial endotoxins.

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Ten polysaccharides, isolated from various animal and plant sources, were selected for comparison with 2 bacterial polysaccharides, typical of Gram-negative endotoxins. The tissue sources were: mouse (kidney, liver, lung, stomach, Sarcoma 37, and Carcinoma 241-6); rabbit skin and chick embryo skin;

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

[Distortion of the pressor response to adrenaline in hepatectomized and tumor-bearing rats].

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Similar distortion of hypertensive response to epinephrine occurred in sarcoma-45-bearing rats, Walker carcinosarcoma-bearing rats, and hepatectomized rats. The response in the last-named was distorted on the 3rd postoperative day. The hypertensive response to epinephrine was restored after the

Effect of human tumor cells on platelet aggregation: potential relevance to pattern of metastasis.

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Tumor metastasis may be facilitated by interaction of tumor cells with platelets. It is not known, however, whether solid tumors which have predisposition to pulmonary metastasis affect platelets differently than lymphoid tumors, which rarely spread to lungs. We therefore examined the effects of

Assessing tumor-related signs and symptoms to support cancer drug approval.

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Cancer causes premature death and significant, often devastating, symptoms. While prolongation of survival is an obvious end point for new cancer drug approval, the US Food and Drug Administration (FDA) has also utilized end points that evaluate patient symptoms. In this article we discuss the end

Evidence for a novel serum factor distinct from zinc alpha-2 glycoprotein that promotes body fat loss early in the development of cachexia.

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We provide evidence that a factor other than the previously identified lipid mobilizing factor, zinc alpha-2 glycoprotein, promotes lipolysis in the MCA-induced sarcoma-bearing cachexia model. Cachexia is characterized by progressive loss of adipose tissue and skeletal muscle without a concurrent

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