Sentences with phrase «cell samples containing»

Not exact matches

Even after initial purification of the sample, liquid biopsies typically contain much more nucleic acid from healthy cells than from tumors.

The diagnosis of cancer and study of disease progression is often accomplished by examining a tumor sample containing many billions or even trillions of cells.

But the samples he saw never contained intact organelles — specialized cell structures with dedicated jobs.

Five days later the team found all samples contained more cells than before, but treated ones had between 36 and 90 per cent fewer cells than untreated samples.

This is normally used to detect fetal abnormalities such as Down's syndrome, and involves inserting a needle into a pregnant woman's belly to take a sample of amniotic fluid containing cells from her fetus.

For spectroscopic applications, this type of coherent light source can pass through a sample cell containing unknown gases.

After a four - year experiment with two comparable 533 - tonne samples of municipal waste, the leachate from the wet cell contained dissolved organic particles from food, leaves and garden debris totalling 2700 milligrams per litre.

Then they collected the fluid that those Fam20C - deficient cancer cells and non-manipulated cancer cells were grown in and analyzed the proteins each sample contained.

None of the samples in the study contained microbial species or cells concentrations that present a public health risk.

Nearly half of the samples contained cells with flagella, tail - like projections that sperm use to swim.

The kit contains human cells and DNA extracted from them, along with the results of various tests carried out on the samples by a group of molecular biologists.

Because any sample of cancer cells is likely to contain thousands of mutations, advanced analytic tools are needed to distinguish harmless «passenger» mutations from the dangerous mutations driving the disease.

Once they had established the chemical and physical details about the nanocrystals, the team then tested the particles as «staining» agents on a tissue sample containing liver cancer cells held on a microscope slide.

They found that human blood samples contained T cells specific for all 20 versions of the virus.

For the new study, described in the October 23rd issue of Nature Communications, scientists at the Johns Hopkins Kimmel Cancer Center and Dana Farber Cancer Institute in Boston collected tissue samples containing normal cells, ovarian cancers, metastases that had spread elsewhere, and small cancers found in the fallopian tubes, which included single cell layers of cancer called «p53 signatures» and serous tubal intraepithelial carcinoma, or STIC lesions.

To confirm that the missing mutations were important for generating an immune response, the researchers cultured a subset of the neoantigen protein fragments containing the tumor mutations with immune cells taken from three patients» blood samples.

But locating the cells that contain the 50 - nanometer particles has been like looking for a needle in a haystack, in part because the tissue - dissolving methods used to identify magnetite turn biological samples to mush.

When the girl's mother was pregnant, doctors sampled the chorionic villus, part of the embryonic side of the placenta, and found that the cells contained three copies of chromosome 15.

To measure the pH of our samples, we used a solution of cell culture medium, which is buffered and contains the pH indicator phenol red.

When the skin cell sample is taken from someone with a specific disease, those iPS cells contain a complete set of the genes associated with the illness, and disease models can be developed to facilitate research and drug discovery.

Scientists looked at tumour samples and found that the drug penetrates the core of the tumour as well as the surrounding areas which contain smaller numbers of cancerous cells.

This means that, where appropriate, consent and ethical approval must be obtained from research participants before using their samples, and ethical approval from the National Research Ethics Service (NRES) must be obtained for the storage and use of material that contains human cells (defined in the Act as «relevant material»), at the Sanger Institute.

Kelley, lead investigator on the study published today in Nature Chemistry, explained how her team has advanced a completely new approach using magnetic nanoparticles with DNA capture probes on their surface that can target circulating tumour cells (CTCs) in blood samples to see if the cells contains biomarkers associated with drug resistance.

For negative control data where each droplet contains RNA from the same solution, the count depth variability must be technical, but in real samples this could also be due to cells having variable amounts of RNA.

As medical testing and citizen - or patient - driven genomics become less expensive and more available to the general public, some people are scraping their cheeks for cells, spitting the saliva containing their DNA into test tubes, and then shipping the samples to laboratories for testing.

The probe contains Martian soil samples from which British exobiologist Hugh Derry (Ariyon Bakare) is able to isolate a single - celled organism, which he aims to bring back to life.

Mock Congress: Cell Phone Surveillance Reform Time required: 4 class hours Grade level: 10 and up Class size: 18 or more Pages: 51 Contains: 18 individualized profile sheets, Background information on NSA surveillance, Graphic organizer for assigned roles, Graphic organizer with word - for - word format on how to run committee meetings and floor debate, Sample rubrics for 3 - minute speeches and participation, Socratic seminar questions for students observing speeches / committee hearings, Maps to various educational standards, Sample follow - up quiz on the legislative process, Teacher instructions and preparation period suggestions.

Then there's the Frozen Ark Project working to save samples of frozen cells containing DNA from endangered animals before they go extinct.

A sample of the ear discharge may then be viewed under a microscope to determine if it contains bacteria, white blood cells, yeast, fungi, ear mites or ear mite eggs.