Sentences with phrase «chemical signal molecules»

Bacterial cells communicate with one another by using chemical signal molecules, which they synthesize and secrete into their surroundings.

Autoinducers (chemical signaling molecules that produce more of themselves inside the cell) control the switch that turns the light genes off and on.

Pheromones are considered to be airborne chemical signaling molecules that are released by humans, animals, and plants into the environment and they can affect the physiology and or behavior of other members of the same species.

Not exact matches

Mitochondria, specialized organelles found in nearly every cell of the body, use cellular respiration to generate one of the most important sources of chemical energy — adenosine triphosphate (ATP), a versatile nucleotide that powers everything from cell division to cell signaling to transportation of large molecules across the cell membrane.

When the team applied the technique to a sample of the organic molecule PTCDA, not only did the molecules show up in intricate detail, an electrical signal was also detected between them (coloured green below), at exactly the locations where hydrogen bonds are present (Journal of the American Chemical Society, DOI: 10.1021 / ja104332t).

A study published in the journal PLOS ONE reports that the synthetic molecule JK - 31 blocks the signalling of a «growth factor» chemical that promotes the creation of networks of blood vessels to feed tumors.

Typical blood glucose testing strips also contain a molecule that ultimately amplifies the signal from the chemical reactions on the strip enough to register electronically on a monitoring device.

Frey and his colleagues made use of mathematical models to analyze the complex interplay between ecological factors and population dynamics, and were able to demonstrate that populations can indeed respond in a coordinated fashion to chemical information even when the signal molecules are generated by only a subset of the cells.

The authors note that more work must be done, however, because only one of these species engaged in a full cycle of listening and speaking in which the artificial cells sensed the molecules coming from the bacteria, and the bacteria could perceive the chemical signal sent in return.

It was originally investigated in 1995 by pharmacologist Franco Borsini and a team of researchers at Boehringer Ingelheim Italia in Milan as an antidepressant because of its ability to regulate neurotransmitters — the brain's chemical - signaling molecules.

For the study, the Bohn worked closely with TSRI chemist Thomas Bannister, PhD, to develope new potential drug molecules; they then tweaked their chemical structures to systematically vary the «bias» between the two pathways — G protein signaling and beta - arrestin recruitment.

While the PS is moving across the cell membrane and looking for a stronger chemical signal, only a few molecules of the breaking protein Cdc24 are present in the machinery.

Dopamine, a molecule crucial for signaling between neurons, can not cross this barrier, which is why its chemical precursor, L - dopa, is used instead to treat Parkinson's disease.

A chemical interaction with target molecules subtly alters the magnetic signal from the xenon; by detecting this change researchers can identify the molecules in a complex mixture.

Gangliosides are lipid molecules that were proposed to play key roles in numerous biological processes, including the formation of raft domains, the entry of toxins into cells and chemical signal reception.

During the chemical reaction they studied — the hydrogenation of propylene to propane — parahydrogen is part of the propane molecule and is converted into observable nuclear magnetism to enhance the MRI signal.

By looking for unique chemical signatures in light and radio signals gathered by telescopes, researchers have observed more than 140 molecules — including increasingly complex organic ones — surrounding stars or in interstellar space.

The excited atoms, in turn, emit signals that can be used to create images of the brain, muscle, and other tissues, which can be distinguished based on the local physical and chemical environment of the water molecules.

These symptoms are the result of the loss of specialized cells in an area of the brain called the substantia nigra pars compacta (SNc) that specialize in producing the chemical signal - molecule dopamine and are responsible for turning off excess firing of neurons that control muscles.

These small molecules exhibit fascinating chemical diversity and regulate lifespan, reproduction, behavior and many other traits, often through signaling pathways that are shared throughout the animal kingdom.

By utilizing the tools of cell and molecular biology, he studies the mechanisms by which chemical (for example, specific cell adhesion molecules) or mechanical signals (for example, cyclic strain) are sensed by cells and alter their proliferation and specialization to either promote tissue growth or destruction.

Lycopene can apparently inhibit both inflammatory chemicals and inflammatory signalling, possibly by inhibiting the inflammatory master molecule NF - KappaB.