Sentences with phrase «animal cells respond»

There is a lot known about how plant and animal cells respond to extreme heat stress, but not much was known about their response to ambient heat or how they regulate their response to heat between day and night.»

Thanks to this transmission route, human and animal cells respond to external signals and specifically activate selected genes in the cell nucleus.

Not exact matches

But because women respond to medications and develop some diseases differently than men, researchers need to include female lab animals, tissues and cells in their experiments, according to a Nature commentary Clayton co-wrote in May.

Twenty years of electrical recording in anesthetized laboratory animals provided ample evidence that many cortical cells, particularly in primary sensory cortical regions, continue to respond selectively during anesthesia.

Like OSNs, animal cells expressing ORs responded to the odorant of interest, emitting fluorescence.

The novel biologic has been tested in cell and animal models, and the results are that the cancer does not grow as aggressively and responds to chemotherapy.

Studies in animals indicated that in branches of the nerve that exit from the back of the brain and wrap around various parts of the face and head, overactive cells would respond to typically benign lights, sounds and smells by releasing chemicals that transmit pain signals and cause migraine.

To investigate this hypothesis, the scientists focused on how a subpopulation of mouse intestinal stem cells responded under calorie restriction and then when the animals were exposed to radiation.

As the animal travels, these neurons, called grid cells and place cells, respond uniquely to distance, turning on and off in a way that measures how far the animal has moved in a particular direction.

More than a decade ago microelectrode studies of rats and monkeys revealed place cells that respond when the animals move to a particular spot in a maze.

The possibility of such cells has been debated at least since the 1950s, when researchers found single neurons in the visual cortex of cats and other animals that respond to simple stimuli, such as lines oriented at a certain angle or moving in a specific direction, or light of a particular wavelength.

When the researchers injected extra copies of the betatrophin gene into the liver of normal mice, the animals» pancreases responded by making as much as 30 times more β cells than usual.

2 top - responding animals are chosen, and immune cells are harvested for fusion with myeloma cells yielding multiple hybridomas.

Both plants and animals are known to contain photoreceptive cells that respond to blue light, which are necessary for circadian rhythms.

Dr. O'Keefe's research identified neurons in the hippocampus, called place cells, which respond selectively to an animal's location.

The Human Emulation System offers researchers a new standard for predicting how a human may respond to diseases, medicines, chemicals, and foods — with greater precision and control than today's cell culture or animal - based testing approaches.

«We have found that the same genes responsible for tamoxifen resistance in our animals are also turned off in human breast cancer cells that do not respond to the drug,» she says «Because these genes were epigenetically silenced — meaning they were not irreversibly altered, just switched off — it was possible to turn them back on.

Although the T cells of chimeric animals responded to alloantigen, the response was similar to that of non-chimeric control animals, suggesting that these cells did not appear to lead to deletion of alloreactive T cells.

One study found that cartilage cells responded to chondroitin sulfate and glucosamine when joints were under stress in aged - animals.

«Our study shows that neurons in the human amygdala respond preferentially to pictures of animals, meaning that we saw the most amount of activity in cells when the patients looked at cats or snakes versus buildings or people,» Florian Mormann, lead author of a paper and a former postdoctoral scholar at CalTech said in releasing the study.

Mast Cells Mast cells are a special type of cell that are distributed throughout the body and help animals respond to inflammation and allerCells Mast cells are a special type of cell that are distributed throughout the body and help animals respond to inflammation and allercells are a special type of cell that are distributed throughout the body and help animals respond to inflammation and allergies.

Mast cells are specialized cells that are normally found throughout the body that help animals respond to inflammation, allergies, and specific situtations.

Mast cell tumors (MCTs) Mast cells are specialized cells that are normally found throughout the body and help animals respond to inflammation and allergies.