The effects of environmental disturbances on tumor growth
نویسندگان
چکیده
Abstract In this study, the analytic expressions of the steady probability distribution of tumor cells were established based on the steady state solution to the corresponding Fokker-Planck equation. Then, the effects of two uncorrelated white noises on tumor cell growth were investigated. It was found that the predation rate plays the main role in determining whether or not the noise is favorable for tumor growth.
منابع مشابه
Protective effects of eight weeks interval aerobic exercise on decorin, TGF-β and tumor volume in atypical animal of breast cancer
Introduction: The decorin is a myokine that modulates the growth and the development of the cancer cells through the interaction with TGF-β. The present study is aimed to evaluate the protective effects of 8 weeks interval aerobic exercise on the expression of decorin and TGF-β, and tumor volume in a typical animal of breast tumor. Materials and Methods: In a exprimental research, forty adult f...
متن کاملMathematical Modeling for Homogeneous Tumor with Delay in Time
Due to the properties of tumor cell, the tumor establishes itself in the organ and grows there, so there is a competition between the tumor cells and host cell (normal cells) for nutrients. Evidences show that high dietary phosphorus increases the rate of protein synthesis and thus the cell number. So, other than oxygen, sulfur, the important element that both tumor cells and normal cells need ...
متن کاملEFFECTS OF ENVIRONMENTAL pH ON THE PRODUCTION OF HEMATOPOIETIC GROWTH FACTORS
Cellular and tissue activities highly depend on environmental pH. Murine lung tissue, when cultured properly in-vitro, is a potent producer of hematopoietic growth factors. We have studied the effect of pH on the production of hematopoietic growth factors and protein synthesis by the murine lung in-vitro. Various concentrations of NaHC03 were used to adjust the pH of the culture medium unde...
متن کاملSustainable Development
Abstract This research has aimed to examine the feedback effects between economic growth and environmental degradation through health that is one of human capital elements and also the consequences of such these relationships on economic convergence process during the period 1990-2013 for 60 developing countries in framework of simultaneous equations model by using unbalanced panel data analysi...
متن کاملEffects of Silver Nanoparticle Exposure on Growth, Physiological and biochemical Parameters of Dracocephalum moldavica L. Zahra Haghighi Pak1, Naser Karimi*2, Hossein Abbaspour1
The increasing commercial production and the broad usage of engineered nanoparticles (ENPs) have led to concerns over the potential adverse impacts of these ENPs on biota in natural environments. Silver nanoparticles (AgNPs) are one of the most important and widely used ENPs which enter natural ecosystems. In this study we examined the effects of AgNPs on growth and some physiological parameter...
متن کامل