Results 221 to 230 of about 1,368,638 (269)
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Computers & Graphics, 1990
Abstract This paper gives a survey of the author's work on systems analysis, control theory, cellular automata, and computer science applied to complex biological systems.
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Abstract This paper gives a survey of the author's work on systems analysis, control theory, cellular automata, and computer science applied to complex biological systems.
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A stochastic model in tumor growth
Journal of Theoretical Biology, 2006A stochastic model of solid tumor growth based on deterministic Gompertz law is presented. Tumor cells evolution is described by a one-dimensional diffusion process limited by two absorbing boundaries representing healing threshold and patient death (carrying capacity), respectively.
ALBANO, GIUSEPPINA, GIORNO, Virginia
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Modeling Growth of a Heterogeneous Tumor
Journal of Theoretical Biology, 2003It has long been recognized that the growth of tumor population depends on the initial age distribution of the cells in the tumor and the age-dependent cellular birth rate. Deterministic dual-cell models have been available for sometime; these models take into account the effects of the resultant cell heterogeneity.
Chen, Wei-Yin +2 more
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Polypeptide Growth Factors in Embryogenesis and Tumor Growth
Russian Journal of Developmental Biology, 2004Polypeptide growth factors, which belong to different families (epidermal growth factors, insulin-like growth factors, fibroblast growth factors, transforming growth factors-beta, and some others), were characterized regarding their specific role in embryogenesis and tumor growth.
R S, Stoĭka, R R, Panchuk, B R, Stoĭka
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Platelets Effects on Tumor Growth
Seminars in Oncology, 2014Unlike other blood cells, platelets are small anucleate structures derived from marrow megakaryocytes. Thought for almost a century to possess solely hemostatic potentials, platelets, however, play a much wider role in tissue regeneration and repair and interact intimately with tumor cells.
Hadi A, Goubran +3 more
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Effects of Laparoscopy on Tumor Growth
Surgical Laparoscopy, Endoscopy & Percutaneous Techniques, 2000Laparoscopic resections of colon cancer may affect survival. To address the effects of pneumoperitoneum on tumor cell biology, we developed an experimental model. Mice were injected with colonic tumor cells. Local and systemic effects of pneumoperitoneum were evaluated. Treated mice were randomly assigned to a control group, an open cecectomy group, or
E F, Moreno +5 more
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Growth Regulation in Carcinoid Tumors
Endocrinology and Metabolism Clinics of North America, 1993In hormone-producing tumors such as the carcinoids, overproduction of certain hormones may activate proto-oncogenes. Hormones, or growth factors, thus can be of importance for growth regulation. Information is presented on some growth factors and their receptors in this respect and on the involvement of gastrin and its receptor on tumor development in ...
H, Ahlman, B, Wängberg, O, Nilsson
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Aggressive pituitary tumor growth
Archives of Oto-Rhino-Laryngology, 1983Three cases with extrasellar extension from our material of 132 pituitary tumors are reported. One tumor secreted growth hormone, one secreted prolactin, and one secreted adrenocorticotropic hormone (ACTH). All three patients had a short case history. The tumors recurred rapidly after surgery.
M, Anniko, L E, Holm, J, Wersäll
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Growth factors and pituitary tumors
Trends in Endocrinology & Metabolism, 1989Growth within the anterior pituitary gland is probably controlled by several interacting extracellular messenger molecules, including hypothalamic peptides, target gland hormones, and several growth factors acting in autocrine or paracrine fashion.
J, Webster +3 more
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Intussusceptive microvascular growth in tumors
Cancer Letters, 2012Intussusception is an alternative to the sprouting mode of angiogenesis. The advantage of this mechanism of vascular growth is that blood vessels are generated more rapidly and the capillaries thereby formed are less leaky. This review article summarizes our current knowledge concerning the role played by intussusceptive microvascular growth in tumor ...
RIBATTI, Domenico, DJONOV V.
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