Sentences with phrase «specific kinds of cells»

Other proteins allow researchers to measure electrical or biochemical activity, while yet others can activate or inhibit specific kinds of cells in the brain in real time.

The researchers took human stem cells, exposed them to a strain of Zika and found that within three days, the virus had attacked specific kinds of cells critical to development of the brain's cortex.

The analysis was made possible by a new method of collecting and purifying the nuclei of specific kinds of cells.

«We found that mice that had been genetically engineered to produce human apoE4 lost a specific kind of cells and that loss of these cells correlated with the extent of learning and memory deficits,» said Yaisa Andrews - Zwilling, PhD, postdoctoral fellow and lead author of the study.

Not exact matches

But to coax them down a specific path in the lab requires recreating the precise sequence and timing of environmental cues in the womb — the signals from proteins and hormones that tell cells what kind of tissue to become.

Using a mouse model, the team also demonstrated that two processes during neurodevelopment are regulated by the gene: proliferation — the replication of neuronal stem cells that have the potential to become multiple different kinds of cells, including neurons — and migration — the movement of neurons to specific locations in the brain during development.

Some aptamers can bind to a specific virus, and others can grab certain kinds of cells or attach themselves to vitamins.

This is already widely used to preserve certain kinds of mammalian cells, including blood cells, and will even preserve very early mammalian embryos, including humans, when the cells are all similar and have not yet taken specific functions.

Those tests showed that specific timing between delivery of the two kinds of stimuli was necessary to suppress the hyperactive fusiform cells.

They found that Kras proteins in the acinar cells induce the expression of a molecule, ICAM - 1, which attracts macrophages, a specific kind of immune cells.

Now, researchers at Washington University School of Medicine in St. Louis have found that a kind of tolerance - promoting immune cell appears in mice that carry a specific bacterium in their guts.

First, a hair follicle contains epithelial cells — a cell type that lines the body's vessels and cavities — as well as a specific kind of adult stem cell called dermal papillae.

TTD - specific cutaneous and anaemic features, on the other hand, are thought to result from a specific kind of transcriptional insufficiency caused by depletion of unstable TFIIH during the terminal differentiation of skin, hair - shaft, and blood cells [16,24].

Scientists are also beginning to come up with completely novel kinds of molecular machines that consist of living cells biologically engineered to perform a specific purpose.

With the recent development of transgenic mouse models, which allow labelling and manipulation of specific cell types, more and more emphasis has been placed on the tissue scale: How does the collective behavior of many cells gives rise to the architecture that is characteristic for given kind of tissue?

(29) This has led to the hypothesis that the great majority of such cells are destroyed over the lifetime by innate immunity, and that the specific senescent cells that do accumulate with aging are precisely those who had variants that allow MMP overexpression, in a kind of «one - off,» very temporally - extended kind of selection process.

ENCODE has laid a foundation for these kinds of studies by examining more than 140 of the hundreds of cell types found in the human body and identifying many of the cell type - specific control elements.

While it has long been known that embryonic stem cells have the ability to develop into any kind of tissue - specific cells, the exact mechanism as to how this occurs has heretofore not been demonstrated.

Thus, one can say that the ES cells stand at the ready until the «last minute» — prepared to engage in selective activation into specific cells — holding «in abeyance» their ability to become any kind of cells at the point and time required.

The antibodies listed above in the immunocytochemistry section were also used on eye sections together with a cocktail of antibodies generated against human - specific markers (HSM) to identify human cells (the Oka blood group antigen, mouse TRA -1-85, 1 ∶ 10 (a kind gift from Peter Andrews, University of Sheffield, Sheffield, UK) together with mouse human nuclear antigen, 1 ∶ 1000, Millipore).

Another study by YS Kim from Washington State University showed an identification of molecular targets regarding specific amino acid dependency and how it modulates specific kinds of prostate cancer cells.

Year 6 Science Assessments and Tracking Objectives covered: Describe how living things are classified into broad groups according to common observable characteristics and based on similarities and differences, including micro-organisms, plants and animals Give reasons for classifying plants and animals based on specific characteristics Identify and name the main parts of the human circulatory system, and describe the functions of the heart, blood vessels and blood Recognise the impact of diet, exercise, drugs and lifestyle on the way their bodies function Describe the ways in which nutrients and water are transported within animals, including humans Recognise that living things have changed over time and that fossils provide information about living things that inhabited the Earth millions of years ago Recognise that living things produce offspring of the same kind, but normally offspring vary and are not identical to their parents Identify how animals and plants are adapted to suit their environment in different ways and that adaptation may lead to evolution Recognise that light appears to travel in straight lines Use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye Explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes Use the idea that light travels in straight lines to explain why shadows have the same shape as the objects that cast them Associate the brightness of a lamp or the volume of a buzzer with the number and voltage of cells used in the circuit Compare and give reasons for variations in how components function, including the brightness of bulbs, the loudness of buzzers and the on / off position of switches Use recognised symbols when representing a simple circuit in a diagram