The autonomic nervous system is affected in a wide variety of neurological disorders. Its dysfunction may play an important role in the clinical course and may result in serious complications, such as cardiac arrest. We report a case of tetanus who presented with severe autonomic nervous system dysfunction which was detected by spectral analysis of heart rate variability monitored over 24 h. Th...

The renin-angiotensin system plays an important role in the regulation of arterial blood pressure and in the development of some forms of clinical and experimental hypertension. It is an important blood pressure control system in its own right but also interacts extensively with other blood pressure control systems, including the sympathetic nervous system and the baroreceptor reflexes. Angiote...

The immunomodulatory effect of the autonomic nervous system has raised considerable interest over the last decades. Studying the influence on the immune system and the role in inflammation of the sympathetic as well as the parasympathetic nervous system not only will increase our understanding of the mechanism of disease, but also could lead to the identification of potential new therapeutic ta...

the basis of acupuncture is still being studied from many different aspects. some preliminary views include: 1) the analgesic function of acupuncture derives from the clashing of the biochemical lines of acupuncture and those of the pain stimulus in the transmitting processes of the central nervous system, the former overriding the latter. 2) acupuncture strengthens the cerebral cortex's i...

exposure to stress leads to physiological changes called “stress response” which are the result of the changes in the adrenomedullary hormone system, hypothalamus-pituitary-adrenal (hpa) and sympathetic nervous system (sns) activity. in the present study, the effects of chronic physical and psychological stress and also the role of sympathetic system effects in stress on ischemia/reperfusion (i...

Incidence ♦ In the US, approximately 700 children and adolescents younger than 20 years of age are diagnosed with tumors of the sympathetic nervous system each year, of which approximately 650 are neuroblastomas. ♦ Sympathetic nervous system tumors accounted for 7.8% of all cancers among children younger than 15 years of age. ♦ Over 97% of sympathetic nervous system tumors are neuroblastomas, e...

We evaluated sympathetic nervous system activity by sympathetic skin response (SSR) recording and we further investigated sympathetic and opioid outflow indirectly in patients with features of reflex sympathetic dystrophy by measuring concentrations of plasma catecholamines (CAs) and their metabolites and plasma metenkephalin (ME), before and after corticoid treatment. Six patients were studied...

T he hemodynamic response to physical stress has been studied over the past decade, and it is considered an indicator of cardiovascular risk. 1 The blood pressure response during acute exercise includes participation of the sympathetic nervous system, involving brain centers and peripheral reflexes. 1 The sympathetic nervous system has a critical role in the regulation of blood pressure and in ...

The heart is electrically and mechanically controlled as a syncytium by the autonomic nervous system. The cardiac nervous system comprises the sympathetic, parasympathetic, and sensory nervous systems that together regulate heart function on demand. Sympathetic electric activation was initially considered the main regulator of cardiac function; however, modern molecular biotechnological approac...