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Biphasic effect of a primary tumor on the growth of secondary tumor implants
(Springer, 2010-10)
Background: The phenomenon of hormesis is characterized by a biphasic dose-response, exhibiting opposite effects in the low- and high-dose zones. In this study, we explored the possibility that the hormesis concept may ...
Ontogenetic growth of multicellular tumor spheroids
(Elsevier Science, 2006-11)
In ontogenetic growth models, the basal metabolic rate is usually assumed to depend on the individual mass following a power law. Here it is shown that, in the case of multicellular tumor spheroids, the emergence of a ...
Natural history of a giant abdominal lipoma
(2012-05-24)
Photodynamic therapy for the treatment of induced mammary tumor in rats
(2013-02-01)
The objective of this work was to evaluate photodynamic therapy (PDT) by using a hematoporphyrin derivative as a photosensitizer and light-emitting diodes (LEDs) as light source in induced mammary tumors of Sprague-Dawley ...
Photodynamic therapy for the treatment of induced mammary tumor in rats
(2013-02-01)
The objective of this work was to evaluate photodynamic therapy (PDT) by using a hematoporphyrin derivative as a photosensitizer and light-emitting diodes (LEDs) as light source in induced mammary tumors of Sprague-Dawley ...
Paradoxical effects of cytokines in tumor iimune surveillance and tumor immune escape
(ELSEVIER SCI LTD, 2007)
The role of cytokines in modulating the formation of new tumors is mediated by their ability to regulate antigen-specific anti-tumor responses and by the activation of non-specific mechanisms, including those involved in ...
Temporal regulation of tumor growth in nocturnal mammals: In vivo studies and chemotherapeutical potential
(Federation of American Societies for Experimental Biology, 2021-02)
Tumors of the nervous system including glioblastoma multiforme (GBM) are the most frequent and aggressive form of brain tumors; however, little is known about the impact of the circadian timing system on the formation, ...
The acceleration of metastases after tumor removal and the paradoxical phenomenon of concomitant tumor resistance
(Noble Research, 2018-10)
Although surgical extirpation of tumors is usually clinically recommended, tumor removal may entail an undesired side effect: the risk of accelerating the growth of metastases. This effect may account for the relatively ...
A cellular automata model for avascular solid tumor growth under the effect of therapy
(2009)
Tumor growth has long been a target of investigation within the context of mathematical and computer modeling. The objective of this study is to propose and analyze a two-dimensional stochastic cellular automata model to ...