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Latest Autonomic nervous system Stories

2012-09-04 14:38:19

Researchers at the Hebrew University of Jerusalem have discovered that a neuronal pathway -- part of the autonomic nervous system -- reaches the bones and participates in the control of bone development. The newly discovered pathway has a key role in controlling bone density during adolescence, which in turn determines the skeletal resistance to fracture throughout one's entire life, say the researchers. They emphasize that understanding the mechanisms connecting the brain and the bones...

2012-07-09 10:20:54

New pathway for infection reported in the American Journal of Pathology Bovine spongiform encephalopathy (BSE, or "mad cow disease") is a fatal disease in cattle that causes portions of the brain to turn sponge-like. This transmissible disease is caused by the propagation of a misfolded form of protein known as a prion, rather than by a bacterium or virus. The average time from infection to signs of illness is about 60 months. Little is known about the pathogenesis of BSE in the early...

2010-06-24 04:15:14

New research uncovers a molecular mechanism that links diabetes with an increased risk of cardiovascular problems and sudden cardiac death. The study, published by Cell Press in the June 24 issue of the journal Neuron, finds that high blood sugar prevents vital communication between the brain and the autonomic nervous system, which controls many involuntary activities in the body. "Diseases, such as diabetes, that disturb the function of the autonomic nervous system cause a wide range of...

2010-02-01 16:08:34

Scientists at the Robarts Research Institute at The University of Western Ontario, working in collaboration with researchers in Brazil, have used a unique genetically-modified mouse line to reveal a previously unidentified mechanism contributing to heart failure. The study, led by Marco Prado, Robert Gros and Vania Prado of London, Canada and Silvia Guatimosim of Brazil, shows how the decreased release of the neurotransmitter acetylcholine, a chemical messenger which slows cardiac activity,...

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2009-11-09 13:55:00

Heart rate variability, a sign of a healthy heart, has been shown to be higher in yoga practitioners than in non-practitioners, according to research to be published in a forthcoming issue of the International Journal of Medical Engineering and Informatics. The autonomic nervous system regulates the heart rate through two routes - the sympathetic and parasympathetic nervous systems. The former causes the heart rate to rise, while, the parasympathetic slows it. When working well together, the...

2009-07-16 11:28:36

 Young people with asthma have nearly twice the incidence of depression compared to their peers without asthma, and studies have shown that depression is associated with increased asthma symptoms and, in some cases, death.How stress and depression play upon one another to worsen asthma is a lingering question.A new study by researchers at the University at Buffalo has shown that depressed children with asthma exhibit a dysregulation of the autonomic nervous system along with increased...

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2008-12-19 09:55:00

British doctors announced details on Friday of a 25 year old woman who frequently passed out after eating sandwiches or a carbonated beverage. These episodes have been happening for the better part of a decade, but medical tests have proven to be fruitless as to why this was happening. The University Hospital Birmingham team said the patient had a unique swallowing reflex which causes her heart to pause at times. She received a pacemaker in January, which so far has stopped her from passing...

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2008-11-26 15:32:04

You see it in movies or while viewing your favorite sitcom; a scene at the doctor's office where the character inevitably gets a little woozy which leads to a fainting spell. It may seem funny when watching it all unfold on television, but according to a study in the May/June 2008 issue of General Dentistry, the Academy of General Dentistry's (AGD) clinical, peer-reviewed journal, this type of reaction, in real life settings, these breath-holding scenarios are the most common emergency...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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