Lime Rate in Clayey Soils Influences Chemical Fertility and Sugarcane Yield.

Liming contributes to the alleviation of acidity in highly weathered soils. For sugarcane, the use of green harvest methods and new soil tillage systems requires an adjustment of lime application rates. In the present study, the effects of different lime rates and tillage systems on sugarcane performance and soil chemical fertility parameters were assessed.

Cardiomyocyte diffusible redox mediators control infection: role of parasite mitochondrial iron superoxide dismutase.

Chagas disease (CD), caused by the protozoa , is a chronic illness in which parasites persist in the host-infected tissues for years. invasion in cardiomyocytes elicits the production of pro-inflammatory mediators [TNF-α, IL-1β, IFN-γ; nitric oxide (NO)], leading to mitochondrial dysfunction with increased superoxide radical (O), hydrogen peroxide (HO) and peroxynitrite generation. We hypothesize that these redox mediators may control parasite proliferation through the induction of intracellular amastigote programmed cell death (PCD).

Cardiomyocyte oxidants production may signal to T. cruzi intracellular development.

Chagas disease, caused by the protozoan parasite Trypanosoma cruzi, presents a variable clinical course, varying from asymptomatic to serious debilitating pathologies with cardiac, digestive or cardio-digestive impairment. Previous studies using two clonal T. cruzi populations, Col1.