Displaying all 2 publications

  1. Ranjith MS, Ranjitsingh AJ, Shankar SG, Vijayalaksmi GS, Deepa K, Babu K, et al.
    Pharmacognosy Res, 2010 Jan;2(1):10-4.
    PMID: 21808531 DOI: 10.4103/0974-8490.60581
    Solanum trilobatum is a widely used plant in the Indian indigenous systems of medicine. It is mainly used in the treatment of respiratory diseases like bronchial asthma. In our present study, we report that the aqueous and alcoholic extracts of S. trilobatum exhibited inhibition of mast cell degranulation. Further, aqueous and alcoholic extracts of S. trilobatum significantly decreased the release of IL1α and increased the release of IL8 from the cultured keratinocytes. Oral administration of the aqueous and alcoholic extracts of S. trilobatum stabilized mast cells in experimental rats.
  2. Ang TK, Safuan HM, Sidhu HS, Jovanoski Z, Towers IN
    Bull. Math. Biol., 2019 07;81(7):2748-2767.
    PMID: 31201660 DOI: 10.1007/s11538-019-00627-8
    The present paper studies a predator-prey fishery model which incorporates the independent harvesting strategies and nonlinear impact of an anthropogenic toxicant. Both fish populations are harvested with different harvesting efforts, and the cases for the presence and non-presence of harvesting effort are discussed. The prey fish population is assumed to be infected by the toxicant directly which causes indirect infection to predator fish population through the feeding process. Each equilibrium of the proposed system is examined by analyzing the respective local stability properties. Dynamical behavior and bifurcations are studied with the assistance of threshold conditions influencing the persistence and extinction of both predator and prey. Bionomic equilibrium solutions for three possible cases are investigated with certain restrictions. Optimal harvesting policy is explored by utilizing the Pontryagin's Maximum Principle to optimize the profit while maintaining the sustainability of the marine ecosystem. Bifurcation analysis showed that the harvesting parameters are the key elements causing fishery extinction. Numerical simulations of bionomic and optimal equilibrium solutions showed that the presence of toxicant has a detrimental effect on the fish populations.
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