Abstract

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  • [Effects of sodium fluoride on the activity of Ca2+Mg(2+)-ATPase in synaptic membrane in rat brain].

    Effects of sodium fluoride on Ca2+Mg(2+)-ATPase activity of synaptic membrane in rat brain were studied with in vitro or in vivo methods. Concentrations of sodium fluoride of 0.3, 1.6, 8.0, 20.0 and 40.0 mmol/L can significantly inhibit the activity of the enzyme with proportions of 6.6%, 18.0%, 41.0%, 55.5% and

  • JNK and NADPH oxidase involved in fluoride-induced oxidative stress in BV-2 microglia cells.

    Abstract Excessive fluoride may cause central nervous system (CNS) dysfunction, and oxidative stress is a recognized mode of action of fluoride toxicity. In CNS, activated microglial cells can release more reactive oxygen species (ROS), and NADPH oxidase (NOX) is the major enzyme for the production of extracellular superoxide in microglia. ROS

  • Confirmation of and explanations for elevated blood lead and other disorders in children exposed to water disinfection and fluoridation chemicals

    Silicofluorides (SiFs), fluosilicic acid (FSA) and sodium fluosilicate (NaFSA), are used to fluoridate over 90% of US fluoridated municipal water supplies. Living in communities with silicofluoride treated water (SiFW) is associated with two neurotoxic effects: (1) Prevalence of children with elevated blood lead (PbB>10microg/dL) is about double that in non-fluoridated

  • Dehydrogenase activity in the brain of fluoride and aluminium induced wistar rats

    Dehydrogenases are cellular enzymes usually used as indicators of changes in cell activity and morphology; this includes metabolic processes such as structural differentiation, cell migration, cellular damage and even cell death; hence, assay of enzymes as Lactate dehydrogenase and Glucose 6 phosphate dehydrogenase could provide evidence for the role of

  • Effect of olfactory bulbectomy on adenylyl cyclase activity in the limbic system.

    Monoaminergic neurotransmission is a key element in the physiopathology of depressive disorders, but information is still sparse on animal models of this disease. Here, we used the olfactory bulbectomy (OBX) model of depression to characterize cAMP-second messenger signaling pathways, i.e., adenylyl cyclase activity (basal, sodium fluoride (NaF)- and forskolin-stimulated conditions)

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