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The host response to Mycobacterium tuberculosis includes granuloma formation at sites of infection and systemic symptoms. Cytokines have been identified by immunohistochemistry in granulomas in animal models of bacillus Calmette-Guérin (BCG) infection and are released by mononuclear phagocytes upon stimulation by mycobacterial proteins. In this regard, the(More)
Mycobacterium tuberculosis infection is accompanied by acute and chronic inflammatory infiltrates associated with necrotizing granulomas in lung tissue. The cellular infiltrate is characterized by inflammatory cells which include neutrophils, lymphocytes, and macrophages. In animal and in vitro models of mycobacterial infection, cytokines including tumor(More)
Microiontophoretic ejection of angiotensin II and angiotensin IV in the vicinity of geniculate neurons was used to study the effects of these peptides on the discharge rate and the discharge pattern of extracellularly recorded activity. The main aim of the experiments was to study the effects of angiotensins in different strains of rats anesthetized with(More)
The renin-angiotensin system of the mammalian brain seems to interfere with the process of cognition and has been associated with the hippocampal function in relation to mechanisms of learning and memory. In our investigation, the effects of angiotensin II (Ang II) and angiotensin IV (Ang II) on neuronal activity have been studied in the hippocampus of(More)
Asbestosis is a fibrotic and inflammatory interstitial lung disease occurring after chronic occupational exposure to asbestos. An alveolitis has been described with activated alveolar macrophages and increased neutrophils as sampled by bronchoalveolar lavage (BAL). Animal models and in vitro studies demonstrate that asbestos can stimulate alveolar(More)
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