Sentences with phrase «in human nerve»

Deth reported last year, for example, that in human nerve cells thimerosal blocks a chemical reaction called methylation that is critical to gene activity and that is also disabled by exposure to lead.

If that's difficult to envision, get this: Trinidad Moruga Scorpion peppers contain about as much capsaicin — the chemical compound in peppers that makes them burn by activating heat receptors in human nerve endings — as a shot glass full of law enforcement - grade pepper spray.

Ubogu says the findings are very exciting, as they provide knowledge of leukocyte trafficking in human nerves, but more work needs to be done in affected patients to develop an effective drug.

Not exact matches

Even if a superintelligence had agreeable goals, like making human beings smile, it could bring them about in disagreeable ways — «manipulating facial nerves» to make us smile all the time.

Long story short — there are voltage levels that exist in the human body, between cardiac rhythms, nerve conduction and brain waves.

He specializes in microsurgery, reconnecting nerves and blood vessels finer than human hairs, performing meticulous 12 - hour procedures with no breaks.

The difficulties associated with obtaining nerve tissue at the correct stage of development and differentiation from aborted embryos means that foetal tissue transplantation is no longer in favour, but the creation of human embryos specifically as sources of stem cells, and the push to use «spare» embryos from IVF treatments is gatheringmomentum.

Like all humans, I was scared to death to speak in public, but I loved the money, and in time, I learned to control my nerves.

It can be inferred with some probability that the human mind, at any given moment, is not drastically different in size and shape from the pattern of activity in the nervous system with which at that moment it interacts, and as this activity moves about somewhat it follows that the mind literally moves in brain and nerves, though in ways unimaginably various and intricate.

It can be inferred with some probability that the human mind, at any given moment, is not drastically different In size and shape from the pattern of activity in the nervous system with which at that moment it interacts, and as this activity moves about somewhat it follows that the mind literally moves in brain and nerves, though in ways unimaginably various and intricate.In size and shape from the pattern of activity in the nervous system with which at that moment it interacts, and as this activity moves about somewhat it follows that the mind literally moves in brain and nerves, though in ways unimaginably various and intricate.in the nervous system with which at that moment it interacts, and as this activity moves about somewhat it follows that the mind literally moves in brain and nerves, though in ways unimaginably various and intricate.in brain and nerves, though in ways unimaginably various and intricate.in ways unimaginably various and intricate.15

If the human body were designed by an omniscient and omnipotent being surely it would not have made such a poor job of the laryngeal nerve in mammals, the spine not being optimal for bi-pedal gait, the blind spot caused by the optic nerve, etc. etc..

The events in the nerves leading to the brain succeeded the events in the eye and were in turn followed by the events in the brain and finally by the impact upon the conscious human occasion of experience.

Even in the twentieth century, when many in «Christendom» talked of the «post-Christian era,» suffered from a loss of nerve, and were under a dark cloud of pessimism, a Pope dedicated the entire human race to Christ and some Roman Catholics and Protestants still took seriously the early Christian dream of making disciples of all nations, baptizing them, and teaching them to observe all that Christ commanded.

So at day 14, the number of nerve and brain cells in the human embryo is zero, and it has less complexity than the simplest microscopic worm and less feeling or intelligence than a parasite in dirty drinking water.

Capsaicin only inflames human cells because heat - detecting proteins in our nerve endings called TRPV1 receptors become activated in the chemical's presence, mistakenly interpreting capsaicin as a sign of extreme heat, and sending the body's burn defenses into overdrive.

The fingers feature the most concentrated groupings of nerve endings in the entire human body.

The C - afferent nerve is centrally and ventrally located from your collarbone to your sternum in all humans.

The sciatic nerve is the longest and widest of all nerves in the human body.

The feat raises hopes that similar techniques might restore nerve - cell function not only in the human eye, but also in the spine and brain.

The main cog in the human biological clock is the suprachiasmatic nucleus (SCN), a group of nerve cells in a region at the base of the brain called the hypothalamus.

This type of inflammation between 18 and 32 weeks of gestation in humans has been linked to preterm birth as well as an imbalance of immune cells in the brain of the offspring and even death of nerve cells in the brains of those children.

BRAIN CANDY A new database offers a deep look at living human nerve cells, revealing elaborate branching structures and myriad shapes, such as in this neuron called a pyramidal cell (cell image, left and 3 - D computer reconstruction, right).

In a human brain, 85 billion nerve cells communicate via trillions of connections using complex patterns of electrical jolts and more than 100 different chemicals.

Growing to just one millimeter in length, these simple creatures have only 302 neurons, or nerve cells, in their bodies, a tiny fraction of the 80 billion or so neurons in the human brain.

Grégoire Courtine at the Swiss Federal Institute of Technology in Lausanne, Switzerland and colleagues previously restored movement to rats with spinal injuries similar to those causing lower - body paralysis in humans, by using a cocktail of chemicals and direct stimulation of spinal nerves.

The human body is a complex electrical network: Nerve cells shuttle signals from the brain, and pulses in the heart cause its muscle cells to expand and contract.

The marine snail, Aplysia, fit the bill, having only about 20,000 nerve cells compared with about a 100 billion in the human brain.

Oligodendrocytes, in red, create a protective sheath around nerve fibers in human brain tissue.

Compared with, let's say, 30 billion neurons and a million billion connections in the human cortex alone, the most complex brain - based devices presently have less than a million neurons and maybe up to 10 million or so synapses, the space across which nerve impulses pass from one neuron to another.

On the quarter - mile walk between his office at the École Polytechnique Fédérale de Lausanne in Switzerland and the nerve center of his research across campus, Henry Markram gets a brisk reminder of the rapidly narrowing gap between human and machine.

While mouse models have traditionally been used in studying the genetic disorder, Deng said the animal model is inadequate because the human brain is more complicated, and much of that complexity arises from astroglia cells, the star - shaped cells that play an important role in the physical structure of the brain as well as in the transmission of nerve impulses.

In rats and tissue cultures of human nerve cells, these «beta sheet breakers» not only prevent amyloid plaques from forming, but also dissolve existing plaques.

Using a technique called nuclear magnetic resonance spectroscopy, the researchers measured the concentrations of 21 metabolites key to nerve function in the brains of 10 deceased schizophrenia patients and 12 normal human controls.

IT MAY seem corny to compare the slithering growth of nerve fibres in the developing human embryo to traffic moving along roads and freeways, but the analogy is apt.

RUN has allowed us to take this idea from nerve cells, to animal models and eventually will help us investigate whether it could be a feasible treatment in humans.

While biomedical researchers have had some successes in repairing peripheral nerves and nerve clusters outside the brain and spinal cord in humans, there currently is no effective way to regenerate broken nerve cells in the central nervous system, said Xue.

In humans and all other animals, such nerves become exposed only as a result of decay or gum disease.

The human brain consists of thousands of different types of nerve cells that are all formed out of what in simple terms can be described as immature stem cells.

«You'd still have to ration the therapy,» cautions Robert Hariri, chief researcher at Anthrogenesis in Cedar Knolls, New Jersey, which announced this year that it had morphed human placental stem cells into nerve, blood, cartilage, skin, and muscle cells.

One possibility is that it's just random events during development, that as a few neural stem cells in a fetus give rise to a hundred billion nerve cells in an adult human brain, a lot of stuff happens.

One of 100 billion nerve cells in the human brain, the neuron waits, ready.

In researches using the more complex animals, it is known that certain nerve cells in the brain integrate information and make a decision when reaching a certain level, which likely occurs also in humanIn researches using the more complex animals, it is known that certain nerve cells in the brain integrate information and make a decision when reaching a certain level, which likely occurs also in humanin the brain integrate information and make a decision when reaching a certain level, which likely occurs also in humanin humans.

«In a mouse, the optic nerve looks normal at birth, which is the equivalent of the third trimester of neonatal human development,» said Fox.

In humans, leprosy causes nerve and muscle damage which can lead to deformity, disability and blindness if left untreated.

One such treatment is already under development for testing in humans after the current study showed it stopped nerve cell damage in mice with ALS.

A study published in Cell last year demonstrated that human and rat stem cells could be grafted onto the spinal cord of paralyzed rats, forming new nerves capable of communicating across the injury site.

Human nerve cells involved in the process are spread throughout the brain.

Researchers from universities in the UK and Australia found that that neurotransmitter (a chemical compound that sends impulses between nerve cells and affects everything from sleep to aggression in humans) spurs a cascade of Dr. Jekyll - to - Mr.

BRANCHING OUT In 1966, researchers thought that the branching ends of nerve cells (mouse neurons shown) might store memories in the human braiIn 1966, researchers thought that the branching ends of nerve cells (mouse neurons shown) might store memories in the human braiin the human brain.

Because slow conduction occurs in narrow fibres, Handwerker concludes that the itch nerve fibres must also be the thinnest so far found in humans.