The effect of IL-1 beta and TNF alpha infused into nucleus tractus solitari (NTS), nucleus parabrachialis medialis (NPBmed) and third cerebral ventricle of normotensive rats on blood pressure (BP) and heart rate (HR) was investigated. Microinfusion of IL-1 beta and TNF alpha into the third cerebral ventricle and NPBmed of normotensive rats produced a dose-dependent hypotensive and bradycardic response. A similar cardiovascular response was produced by infusion of IL1 beta into NTS but not by TNF alpha. When rats were pre-treated with Escherichia coli lipopolisaccharide (LPS), an enhancement of cardiovascular response elicited by IL-1 beta and TNF alpha was found. Thus, IL-1 beta and TNF alpha produce cardiovascular responses when infused into specific areas of the CNS. This effect is potentiated by LPS and this may explain the alteration in cardiovascular regulation which can be observed in diseases in which an excess of circulating endotoxins and cytokines may occur.

Mollace, V., Muscoli, C., Palma, E., Iannone, M.d., Granato, T., Nistico', R.g., et al. (2001). Central cardiovascular responses induced by interleukin 1 beta and tumor necrosis factor alpha infused into nucleus tractus solitarii, nucleus parabrachialis medialis and third cerebral ventricle of normotensive rats. NEUROSCIENCE LETTERS, 314(1-2), 53-56.

Central cardiovascular responses induced by interleukin 1 beta and tumor necrosis factor alpha infused into nucleus tractus solitarii, nucleus parabrachialis medialis and third cerebral ventricle of normotensive rats

MOLLACE, VINCENZO;IANNONE, MARIA DONATA;NISTICO', ROBERT GIOVANNI;
2001-11-13

Abstract

The effect of IL-1 beta and TNF alpha infused into nucleus tractus solitari (NTS), nucleus parabrachialis medialis (NPBmed) and third cerebral ventricle of normotensive rats on blood pressure (BP) and heart rate (HR) was investigated. Microinfusion of IL-1 beta and TNF alpha into the third cerebral ventricle and NPBmed of normotensive rats produced a dose-dependent hypotensive and bradycardic response. A similar cardiovascular response was produced by infusion of IL1 beta into NTS but not by TNF alpha. When rats were pre-treated with Escherichia coli lipopolisaccharide (LPS), an enhancement of cardiovascular response elicited by IL-1 beta and TNF alpha was found. Thus, IL-1 beta and TNF alpha produce cardiovascular responses when infused into specific areas of the CNS. This effect is potentiated by LPS and this may explain the alteration in cardiovascular regulation which can be observed in diseases in which an excess of circulating endotoxins and cytokines may occur.
13-nov-2001
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore BIO/14 - FARMACOLOGIA
English
Animals; Bacterial Infections; Blood Pressure; Cardiovascular Physiological Phenomena; Dose-Response Relationship, Drug; Drug Interactions; Endotoxins; Heart Rate; Interleukin-1; Lipopolysaccharides; Male; Pons; Rats; Rats, Wistar; Solitary Nucleus; Third Ventricle; Tumor Necrosis Factor-alpha
Mollace, V., Muscoli, C., Palma, E., Iannone, M.d., Granato, T., Nistico', R.g., et al. (2001). Central cardiovascular responses induced by interleukin 1 beta and tumor necrosis factor alpha infused into nucleus tractus solitarii, nucleus parabrachialis medialis and third cerebral ventricle of normotensive rats. NEUROSCIENCE LETTERS, 314(1-2), 53-56.
Mollace, V; Muscoli, C; Palma, E; Iannone, Md; Granato, T; Nistico', Rg; Rotiroti, D
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/133241
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