Sentences with phrase «neural tissue from»

The researchers also analyzed samples of human neural tissue from embryos that had been stored by a hospital pathologist..

They tested neural tissue from people who had died from Huntington's disease, a degenerative disorder of nerve cells in the base of the brain.

Not exact matches

Focusing on the neural pathway from the brain's prefrontal cortex to the amygdala, they combined optogenetics — a technique that uses light to control the activity of neurons in living tissue — with behavioral testing, a methodology that allows researchers to study functional connections between different regions of the brain.

«It's useful in modeling concepts in neuroscience to have a system that will yield a diverse range of behaviors for small changes of a control parameter, as this may help offer some insights about how the same neural tissue displays different responses,» Alonso said, whose research was funded by a fellowship from the Leon Levy Foundation.

Scientists believe these neural stem cells secrete hormonal steroids or proteins that nurse ailing neurons, preventing them from dying, and stimulate the formation of blood vessels that nourish damaged tissue with nutrients and oxygen.

«The embryos lack all [cell types known as] mesoderm and endoderm and are left with skin and some neural tissue, [which derive from the third major cell type, the ectoderm].»

The collaboration, led by Wen Shen and Mark Allen of the University of Pennsylvania, found that the extracellular matrix derived electrodes adapted to the mechanical properties of brain tissue and were capable of acquiring neural recordings from the brain cortex.

However, not only do neural prosthetic devices suffer from immune - system rejection, but most are believed to eventually fail because of a mismatch between the soft brain tissue and the rigid devices.

Human neural stem cells are derived via fluorescence - activated cell sorting (FACS) from donated fetal brain tissue.

They found that the genomic regions showing the most extreme signatures were involved in the development of the neural crest, and expressed within tissues derived from the neural crest.

They also hope to use what they learn from simple models of different tissue types to ultimately build functional human tissues like lung and kidney and neural circuits using larger - scale techniques.

As development proceeds, neural crest cells break away, migrating from head to toe to form tissues involved in pigmentation, muscles, teeth, bone, cartilage, and adrenal glands, which produce stress hormones as well as testosterone.

This could transition the research from artificial material mimicking neural tissue to artificial tissue now mimicking neuromuscular tissue.

In the near future, the researchers hope to grow mini-brains from the stem cells to observe the long - term effects of Zika infection on neural tissue and to screen for potential therapeutics.

Eugene Redmond, director of Yale University's neural transplant programme, says that tissue from almost all miscarriages and ectopic pregnancies is unusable.

Neural stem cell lines derived from human fetal brain tissue achieved the same feats, the researchers report in the October issue of Nature Neuroscience.

But she had to improve the sensitivity of the technique so that it could detect the isotopic ratio in DNA from the roughly 6 - gram sliver of neural tissue in the hippocampus thought to produce new neurons, the dentate gyrus.

The company has created banks of highly purified neural stem cells that are isolated from adult neural tissue.

For instance, within the superior colliculus (SC)-- a midbrain area that initiates eye movements to peripheral stimuli directly based on input from the eyes -, much more neural tissue is dedicated to processing foveal signals than to processing peripheral signals.

Challenges stem from the kinetic nature and mechanical softness of brain tissue, tissue responses to implanted foreign bodies as well as our limited ability to control neural circuits and regenerative processes in situ.

We quantitatively demonstrate that lipofuscin, accrued through normal ageing, can be lost from neural tissue.

Histochemical analysis indicated the existence of tissues from all three germ layers, such as neural epithelial cells (ectoderm), intestines (endoderm) and muscle (mesoderm)(Figure 6A).

Spinal cord tissue was dissected from the rostral neural tube of two 9 week old samples (referred to here as 9W1 and 9W2).

Embryologically, parts of the eye (e.g., the connective tissue tunics) are derived from mesoderm [9], [10], and thus eye growth might be expected to closely follow that of other somatic structures rather than visceral or neural structures.

Neural stem cells are found in adult or fetal brain and spinal cord or derived from embryonic stem cells, which have the capacity to become any cell type in the body, or induced pluripotent stem (iPS) cells, tissue - specific cells that are reprogrammed in the lab to behave like embryonic stem cells.

In that same paper from 1957 that R.S. Fixot published in the American Journal of Opthamology (summarized here), 50 % of our neural tissue is directly or indirectly related to vision, which assists in visual learning.

Epidermoid and dermoid cysts result from inclusion of epithelial components of embryonal tissue at the time of closure of the neural tube.