A tissue slice, a tumor biopsy, or a sample of a bacterial culture yields a sequence representing the average of all of the cells within it, even though researchers know there can be tremendous variation between those cells.
Lena Chin, a graduate student in Slack's lab, sequenced the DNA from
the tissue slices.
The team decided to verify that finding by treating
tissue slices from developing ferret brains with a chemical that blocks BDNF's activity.
protected animals»); studies on in vitro systems (whole perfused organs,
tissue slices, cell and tissue cultures, and subcellular fractions); and human studies (including estimations of occupational and environmental exposure, postmarketing surveillance, epidemiology, and the ethical and strictly controlled use of human volunteers).
His work involves high - resolution imaging of chick embryonic
tissue slices to study the cell - biological mechanisms driving neurogenesis in the spinal cord, for which Dr. Das played an instrumental role in pioneering new imaging technology.
Her team found evidence of kneecaps in
tissue slices from eight frogs, representing several species.
Mouse Pancreas
Tissue Slice Culture Facilitates Long - Term Studies of Exocrine and Endocrine Cell Physiology in situ.
In the current study, lead authors David V. Hansen, PhD, a postdoctoral fellow, and Jan H. Lui, a graduate student in the Kriegstein lab, examined the OSVZ, using new labeling and tracking techniques to follow individual cells and their progeny over time in cultured
tissue slices from fetal cortex tissue that had been donated for research.
Marciniak A, Cohrs CM, Tsata V, Chouinard JA, Selck C, Stertmann J, Reichelt S, Rose T, Ehehalt F, Weitz J, Solimena M, Slak Rupnik M, Speier S Using pancreas
tissue slices for in situ studies of islet of Langerhans and acinar cell biology.
In particular, we use 2D and 3D in vitro cell cultures;
tissue slices cultured ex vivo; and transgenic mouse models.
Not exact matches
Finally, the owner of Kleenex
tissues is aggressively
slicing costs, at a pace of about $ 400 million per year.
Rest the pineapple
slices and cherries on a
tissue placed over a plate, so that when you use them, the pineapple
slice and cherries are not dripping wet.
The
tissue thin
slices were just right!
Choose a tender steak without much sinew or muscle
tissue — flank steak is a great option — and
slice it thinly, against the grain, to make it easy to eat.
The animals» cellular scaffolding, or cytoskeleton, can regrow from a
slice of
tissue that's just 2 percent of the original hydra's full body size.
She has also started
slicing open the lanternfish so she can determine if they are eating plastic and whether POPs are accumulating in their
tissues.
You can visit them there, where you can also see a tumor removed from Grover Cleveland's mouth; a
slice of
tissue from the chest of John Wilkes Booth; the shared liver of the famous conjoined («Siamese») twins Chang and Eng Bunker; and a collection of cysts, tumors, and deformities of all sorts.
The quantity of protein clumps was calculated using a computer program that measured the amount of
tissue in a skin
slice with protein clumps expressed as a percentage of the
tissue's total area.
In an analysis of Medicare billing data submitted by more than 2,300 United States physicians, researchers have calculated the average number of surgical
slices, or cuts, made during Mohs micrographic surgery (MMS), a procedure that progressively removes thin layers of cancerous skin
tissue in a way that minimizes damage to healthy skin and the risks of leaving cancerous
tissue behind.
After
slicing open some of the crocodile corpses last year, researchers determined some kind of pansteatitis — an inflammation of adipose
tissue — was killing the animals.
Indeed, by examining brain
tissue and
slices from the cocaine - addicted rats at various stages of withdrawal and craving, Wolf and her colleagues discovered that the incubation period and the subsequent spike in craving appeared to correlate with the appearance of atypical AMPA receptors on the surface of neurons in the NAc, which could help explain cocaine craving.
Scientists at the Allen Institute for Brain Science in Seattle are using microscopy to directly observe gene activity, one at a time, in razor - thin
slices of mouse brain
tissue.
Brain
tissue is spread out over the table in neat 10 millimetre
slices, like some kind of macabre deli counter.
In this study, the researchers from Imperial's Department of Surgery and Cancer and the Royal British Legion Centre for Blast Injury Studies, applied xenon to
slices of mouse brain
tissue after exposing them to blast shockwaves that emulated those produced by improvised explosive devices (IEDs).
The
tissue is then taken to a processing center, where the materials are given a thorough cleaning and techs
slice off excess pieces of muscle or bone before they cryopreserve them, which keeps the remains usable in living patients for up to five years.
In 1898, Italian biologist Camillo Golgi saw something odd in the
slices of brain
tissue he examined under his microscope: weblike lattices surrounding many neurons.
To map the roughly 1300 connections, or synapses, between the cells, researchers used an electron microscope to take millions of nanoscopic pictures from a speck of
tissue not much bigger than a dust mite, carved into nearly 3700
slices.
SUSHI also visualizes synaptic clefts for the first time in
slices of live
tissue and reveals glia - neuron interactions and cell migration.
To test his theory, he looked at
slices of human brain
tissue.
In the 19th century it was tackled by
slicing the cords of
tissue underneath the tongues of puppies.
The
Slice Once the gelatin sets, the brain is frozen, mounted on a motorized
tissue -
slicing device called a microtome, and
sliced.
They then kill the animal and
slice its brain
tissue thin enough so that light can shine through it under a microscope, revealing the structure within each
slice.
During the spring and summer of 2009, Annese and his collaborators tinkered with the equipment needed to dissect H. M.'s neural
tissue into precise
slices.
As the motorized stage moves backward, a razor - sharp blade peels away a 70 - micrometer - thick
slice of
tissue — like prosciutto at the deli counter, only far thinner.
Fossilized
slices of a 374 - million - year - old tree reveal a hollow core surrounded by numerous bundles of woody strands called xylem (the larger black spots), with soft
tissue (in gray) between.
Gobbling a
slice of sweet pumpkin pie, for instance, causes beta cells in the pancreas to secrete insulin, a hormone that allows the uptake of glucose and most amino acids into the
tissues.
To make such a detailed model, researchers took specks of brain
tissue and cut them into
slices thousands of times thinner than a human hair.
va Mezey of the NIH did the job by staining the same
slice of
tissue in two ways, once to pinpoint the secretion (either of insulin or of saliva) and a second time to pinpoint the male, or Y, chromosome.
In their most recent work, Walker and colleague Carol Diebel turned to a magnetic force microscope, running it less than a hair's width above thin
slices of trout nose
tissue.
The mouse atlas was produced using a method called «in situ hybridisation», in which thin
slices of brain
tissue are bathed in a solution containing molecular probes that bind to messenger RNA sequences produced by each gene.
Bova has come up with a novel application of 3 - D printing that lets neurosurgery residents
slice into realistic skulls and brain
tissue with zero risk.
Here at the Harvard Brain
Tissue Resource Center, donated specimens are
sliced up, preserved, stored, and eventually parceled out to neuroscientists worldwide who study them for clues to disease, cognition, and the mysterious cellular underpinnings of psychology.
Next, Südhof's team examined
slices of brain
tissue from the mutant mice.
To understand more, she conducted experiments in acute brain
slices, small pieces of brain
tissue where neurons stay alive and maintain their physiological properties.
In order to preserve the
tissue, samples are taken and usually fixed with formalin, before they are embedded in wax - like paraffin and cut into razor - thin
slices.
It involves flash - freezing
tissue or cells, then cutting thin
slices of individual nuclei.
In many forms of traditional biomedical microscopy, light is shined through very thin
slices of
tissue to produce an image.
Lasers are used to cut metal,
slice through
tissue during surgery, trap atoms, and even initiate nuclear fusion.
Another Kavli researcher, Steven Siegelbaum, uses a technology called two - photon microscopy to image pre-synaptic terminals (the nerve cell tips that send charges from one cell to another) within
slices of living brain
tissue.
Distinguishing between different types of endometrial cancers is currently based on histology, an examination of a thin
slice of
tissue under a microscope.