The various functions of neurotransmitters
By: Bethan Jenkins
According to webspace.ship.edu, neurotransmitters are the chemicals which allow the transmission of signals from one neuron to the next across synapses. A synapse is a very small junction or gap between two neurons, or a muscle and a neuron. Neurons tend to communicate...
By: Dr Pandula Siribaddana
Neurotransmitters are chemical substances which function as signal transmitters from a nerve ending to another cell or to a gland. They can belong to several different categories of neuro-chemicals including amino acids, monoamines and peptides. Within these categories, some of the most common neurotransmitters discovered...
Scientists: Bedside test finds awareness in vegetative brains
By: Isabelle Esteves
A November 10, 2011 report, published in The Lancet, a peer reviewed medical journal that offers a special journal in Neurology, provides hope for those who are in a persistent vegetative state. Most patients in a vegetative state have periods of wakefulness but are seemingly...
By: Dr. Bryan Katz
The formed elements of human blood include red blood cells, white blood cells, and platelets. The first two cell types arise individually from myeloid and lymphoid stem cells in the bone marrow. In contrast, the source of platelets is a distinct precursor cell called the...
By: Grandma McGraw
More than 500 years of experimentation with transferring blood from one living creature to another began with a very important person: Pope Innocent VII’s physician recommended a transfusion in an attempt to save the dying Pope in 1492. The pontiff died anyway, and the...
By: Roma Lightsey
The first recorded attempt at a blood transfusion was in 1492. Pope Innocent VII was in a coma, and the blood of three young boys was infused in a desperate attempt to save the dying pope. The concept of circulation and intravenous access was not...
Brainboost: Downloading directly into the brain
By: Terrence Aym
Throughout history people learned by rote and repetition. That's about to change say excited researchers who see people boosting their knowledge and skills by simply downloading everything right into their brains.As knowledge about the brain continues to grow exponentially, so do the ways that...
How a 17-year-old girl created a nanoparticle that kills cancer stem cells
By: Terrence Aym
Sir Arthur C. Clarke, the British futurist, once advised never to trust a scientist over thirty. Perhaps a further step can be taken and conversely assume to always trust a scientist under twenty—at least if that scientist happens to be named Angela Zhang.Why...
Scientists: Stem cells may triple lifespan
By: Terrence Aym
Stem cell research promises cancer breakthroughs, limb and organ regeneration, a cure for heart disease…and now breaking research suggests stem cells may hold the key to tripling human lifespans. A research team from the University of Pittsburgh Medical Center [UPMC Press release] has discovered...
Is there a case for legalizing assisted dying?
By: A.W. Berry
There is widespread precedence for the legalization of assisted dying as evident via U.S. Supreme Court rulings, state legislative acts and state court decisions. In the case of the Federal Supreme Court, two cases appealing circuit court rulings against assisted suicide were overturned in...

 

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