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Human immunodeficiency virus (HIV) infection of the central nervous system (CNS) can lead to cognitive dysfunction, even in individuals treated with highly active antiretroviral therapy. Using an established simian immunodeficiency virus (SIV)/macaque model of HIV CNS disease, we previously reported that infection shifts the balance of activation of mitogen-activated protein kinase (MAPK) signaling...
Ammonia is an important signaling molecule involved in the regulation of development in Dictyostelium. During aggregation, ammonia gradients are established, and the ammonia concentration in the immediate environment or within a particular cell throughout development may vary. This is due to the rate of cellular ammonia production, its rate of loss by evaporation to the atmosphere or by diffusion...
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