Sentences with phrase «changes in the cell structures»

Researchers are looking into methods that might discern changes in cell structure that result from freezing the blood.

Not exact matches

Secretion of the hormones estrogen and progesterone set the stage for dramatic changes that take place in the breast during pregnancy: a massive proliferation of mammary epithelial cells, and the formation of thousands of ductal structures, which support milk production and transport during lactation.

She demonstrated that early experience leads to lasting changes in the molecular structure of the brain and discovered a gene involved in the spread of brain cancer cells into healthy brain tissue.

Many of the mutations in ASD, Yan explained, result from chromatin remodeling factors, which are involved in dynamically changing the structure of chromatin, the complex of genetic material in the cell nucleus that condenses into chromosomes.

They used this novel simulation approach to build a model of a sperm cell that demonstrates cellular movement from individual dynein protein molecules in the tail all the way up to the whole cell, allowing them to observe how changes at the atomic level are reflected in larger - scale structures.

This showed leukocytes crossing between the blood - nerve barrier endothelial cells without gaps in the barrier or change in how the barrier is structured.

Now, researchers have discovered that the drug changes the firing patterns of cells in a pea - size structure hidden away in the center of the brain.

Even short - term blockages of this kind can lead to remarkable changes in the auditory system, altering the behavior and structure of nerve cells that relay information from the ear to the brain, according to a new University at Buffalo study.

Measuring changes in a voltage bias applied to the saline reveals how close the capillary tube is to the cell, allowing researchers to scan subtle structures on the cell surface without disrupting them.

For this study, researchers studied four solar cells with different selenium contents — and corresponding changes in crystal structure — and learned that the one with the highest level of selenium did not perform well.

So over time, changes in the cytoskeleton form the shape and behavior of cells and, ultimately, the structure and function of the organism as a whole.

Their classification changed in the 1970's after extreme differences were found in the way they replicate DNA and in the structure of their cell membrane.

Rutgers University scientists have discovered the three - dimensional structure of a gene - specific transcription activation complex, providing the first structural and mechanistic description of the process cells use to turn on, or activate, specific genes in response to changes in cell type, developmental state and environment.

The work, which appears in the journal Cell, focuses on the regulation of «neuronal plasticity» — changes in neuronal structure — and its function in the brain.

The size of the brain's ventricles — cerebrospinal fluid - filled spaces deep within the brain — became progressively larger during the course of treatment, and changes were also seen within the subventricular zone, one of two structures in which new brain cells are generated in adults.

In nature, biologists have observed that living things and their components, from pine cone scales to microbial cells and even specific proteins, can change their structures or volumes when there is a change in humiditIn nature, biologists have observed that living things and their components, from pine cone scales to microbial cells and even specific proteins, can change their structures or volumes when there is a change in humiditin humidity.

The structure and composition of the erionite from both regions is practically identical, and samples from each place cause mesothelioma - associated changes and inflammation in cell culture and mouse lungs.

The current model in neuroscience poses that memory is stored as long - lasting anatomical changes in synapses, the specialized structures by which nerve cells connect and signal to each other.

Anthracycline drugs, such as doxorubicin, are known to cause heart failure because they cause changes in the DNA structure of the heart muscle cells, leading to irreversible cardiac damage.

It may, for example, partly account for the differences in brain structure and behavior between identical twins, and could even affect thought processes by subtly influencing the changes in nerve cell connections that occur with experience.

When these cells are illuminated by a strong light, a change in the structure of melanopsin triggers a molecular cascade that eventually leads to an influx of calcium ions into those neurons and an electrical pulse.

We notably follow the time course of structural changes in response to cues that affect gene expression either transiently or permanently: changes in genome structure during transient hormonal response of differentiated cells and stable trans - differentiation of B cells to macrophages.

With the reference cell census data in hand, the research team is excited to conduct additional studies, including ones involving models or human patients with gastrointestinal conditions — Crohn's disease, ulcerative colitis, gastrointestinal cancers, forms of food allergy, etc. — aimed at identifying changes in gene expression and epithelial structure and function that could reveal new insights and opportunities for therapeutic development.

Biocellion is being used to model a variety of biological system behaviors, such as biofilm formation and wrinkling, microbial growth dynamics in complex soil structure, brain tumor growth and invasion, formation of complex bacterial colonies, and changes in blood vessels and skin cells.

As they develop microscopy techniques to better visualise the details of chromatin structure, even in living cells, they're better able to explore how structural changes relate to gene expression and cell function.

We focus on how changes in chromatin structure orchestrate the developmental transitions from fertilization to genome activation to cell fate specification.

We are also working to show how changes in the structure of chromosomes affect heart development, and to determine how immune cells contribute to the build - up of plaque in arteries.

A team of scientists from Whitehead Institute and the University of Texas Southwestern Medical Center has added markedly to the job description of prions as agents of change, identifying a prion capable of triggering a transition in yeast from its conventional single - celled form to a cooperative, multicellular structure.

Cancer starts when there is a change in the structure of DNA in cells.

By manipulating a specific gene in a mouse blastocyst — the structure that develops from a fertilized egg but is not yet an actual embryo — scientists with the University of Florida's McKnight Brain Institute and the Harvard Stem Cell Institute caused cells destined to build an embryo to instead change direction and build the cell mass that leads to the placeCell Institute caused cells destined to build an embryo to instead change direction and build the cell mass that leads to the placecell mass that leads to the placenta.

The scientists found that exposure to paracetamol or ibuprofen triggers mechanisms in the cell that make changes in the structure of DNA, called epigenetic marks.

He is investigating both how the genome is packaged, protected, sequestered, and made accessible within the cell nucleus, as well as how changes in DNA sequence relates changes in structure and function of encoded biological macromolecules.

Feeding mice Roundup Ready soybeans exhibited changes in liver cell shape and structure that resembled the effect of a toxin; removing the GM soybeans from the diet reversed the effect.

Exposure to heat ruptures the cell walls which allow the molecule to be better extracted, bringing about changes in the structure letting it be more easily assimilated by the body.

They're crystalline structures that have integrin cells, which are actual electromagnetic transfer stations where whatever happens in the soles of the feet as you spread your toes on your mat, changes the way you think, the signals that your brain gets.

Unfortunately, aging cells have a diminished ability to produce ATP due to changes in mitochondrial structure and function — unless we intervene or support our cellular energy production.Research indicates that mitochondrial DNA mutations begin accumulating in individuals starting in their mid-thirties which contributes to the decreased energy that so many people experience with increasing age.

It is these acidic chemicals that actually produce positive changes in the structure of synapses — or the gap that transmits information from one nerve cell to another.

Away from the battery cell improvements (see above), the big technological change to the i8 Roadster is the one made to the car's structure in turning it from a coupe to a convertible.

Due to its structure HA also facilitates cell shape changes and movement of cells due to its role in the pericellular envelope which surrounds cells.

Changes in ocean surface temperatures caused by El Niño significantly affect where cumulonimbus clouds form in the ITCZ and, therefore, the geographic structure of the Hadley cell.