Sentences with phrase «of human nerve»

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.

Not exact matches

«The human brain is divided into two hemispheres, the left and right, connected by a bundle of nerve fibers called the corpus callosum.

Francis Crick famously asserted that human life is «no more than the behavior of... nerve cells and their associated molecules.»

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.

From his birth to his death and beyond... Jesus translates the logic or meaning or pattern or heart of God into terms we humans can understand: skin and bone, muscle and breath, nerve and action.

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.

Today when it is necessary to human survival itself that the nerve of hope for that better society be kept alive, there is widespread bewilderment and anxiety.

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.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.

This aptly describes the marvelous weaving of the muscles, sinews, ligaments, nerves, blood vessels and bones of the human frame.

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.

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.

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

Now I was about to have a human baby of my very own, and there were heaps of fears, nerves, and excitement that came with.

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

«Nerve agents» are chemical substances that interfere with the chemistry of the human nervous system by binding with an enzyme called acetylcholinesterase.

Star - nosed moles have 22 tiny trunks containing a total of nearly 100,000 nerve fibers — six times as many touch receptors as on a human hand.

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.

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.

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.

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.

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.

«Our work could lead not only to a better understanding of the biology of the optic nerve, but also to a cell - based human model that could be used to discover drugs that stop or treat blinding conditions,» says study leader Donald Zack, M.D., Ph.D., the Guerrieri Family Professor of Ophthalmology at the Johns Hopkins University School of Medicine.

Johns Hopkins researchers have developed a method to efficiently turn human stem cells into retinal ganglion cells, the type of nerve cells located within the retina that transmit visual signals from the eye to the brain.

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.

Consider that the nerve cells of a human embryo have a cool quadrillion connections to make before a basic baby can take shape.

DDVP is an organophosphate, one of a group of pesticides developed after World War II, when researchers discovered that insects» nervous systems were more sensitive to nerve agents than the human nervous system.

By reprogramming skin cells into nerve cells, researchers at Karolinska Institutet are creating cell models of the human brain.

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.

The team hopes to apply this method to the nerve cells, bone marrow, and brain tissue of living animals and humans.

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

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.

They are neurotoxins: They poison the nervous system of both insects and humans by disabling an enzyme called cholinesterase that helps regulate signals between nerve cells.

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 brain.

The researchers, led by University of California, San Diego neuroscientist Mark Tuszynski, took skin cells from the patients, grew them up in a culture dish and genetically engineered them to make human nerve growth factor (NGF).

Specifically, they have found evidence of processing in the human lateral geniculate nucleus (LGN), a small node in the thalamus in the middle of the brain that relays nerve impulses from the retina to the primary visual cortex.

The authors also found abnormalities in the subthalamic nucleus occur earlier than in other brain regions, and that subthalamic nucleus nerve cells progressively degenerate as the mice age, mirroring the human pathology of Huntington's disease.

«Simple changes to the nerve agent's molecular structure can change something that can kill a human into something harmless,» said Farha, a research professor of chemistry in the Weinberg College of Arts and Sciences.

The researchers had assumed that pigeons must have an advantage over humans because of their greater nerve cell density.