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Figure 1 | Theoretical Biology and Medical Modelling

Figure 1

From: Chemotherapy in conjoint aging-tumor systems: some simple models for addressing coupled aging-cancer dynamics

Figure 1

Blue curve: Evolution of normal cells. Purple curve: Evolution of tumor cells. Common parameters: r N = 0.4, r T = 0.3, K T = 1.2.106, K N = 106. Left: There is no interaction between normal cells and tumor cells (both populations undergo logistic growth), k = 0, β = 0. Right: Normal and tumor cells are allowed to interact with each other, k = 1, β = 2, ρ0 = 1, ρ1 = 1000, T* = 3.105, N0 = 1, T0 = 1. The mini-window magnifies the behavior of normal and tumor cells close to the critical size of the tumor. As the size of the tumor cells T exceed the critical size, T* (dashed line), the size of normal cells N starts decreasing.

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