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Tag: "cells" at biology news

Researchers trace evolution to relatively simple genetic changes

...al tissue during development and instructs certain cells to form teeth, hair and sweat glands. It also seems to control the shape of - bones in the forehead and nose. Now, Kingsley said, "it turns out that armor plate patterns in the fish are controlled by the same gene that creates this clinical disease ...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

...al tissue during development and instructs certain cells to form teeth, hair and sweat glands. It also seems to control the shape of - bones in the forehead and nose. Now, Kingsley said, "it turns out that armor plate patterns in the fish are controlled by the same gene that creates this clinical disease ...

Studies reveal methods viruses use to sidestep immune system

...lowing it to replicate "like gangbusters" in those cells with the mutation, Dr. Gale said. He and his group...eplication. The researchers also investigated why cells with functioning RIG-I protein still had persistent HCV infection. In a study to appear in PNAS, Dr....

Development of portable infectious disease detector

...bility to measurethe metabolism of small groups of cells and studying how they respondto drugs, toxins and ...anmeasure the concentrations of the chemicals that cells consume andexcrete in extremely small volumes and the use of fluids flowingthrough microscopic chann...

Researchers add new tool to tumor-treatment arsenal

...that damage DNA with a drug that sensitizes cancer cells to these agents. The research, led by George Thom...and the failure to blunt the disease. When cancer cells are treated with a DNA-damaging agent, a cancer-suppressing gene known as the "guardian of the cell"...

Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers

...lation system. While oxygen is essential for their cells to produce energy, the removal of carbon dioxide f...ea, the series of tubes that carry air directly to cells for gas exchange. Using a respirometer (an instrument for measuring respiration that consists of a c...

Alcohol's effects on gene expression in the central nervous system

... in the CNS regions of animal models. "All of our cells have exactly the same deoxyribonucleic acid (DNA),...ity School of Medicine. "The reason that different cells can appear and work so differently with the same genes ?giving us, for example, unique eyes, skin, o...

Potential Cure for Lymphoma in HIV patients

...stem cell rescue. In anautologous transplant, stem cells are removed from the patient andfrozen for later u... any lymphoma in the body, and the autologous stem cells are theninfused back into the patient to repopulate the bone marrow wiped outby the chemotherapy.Bef...

Research Gives Hope For Liver Damage

...time, identifiedtwo separate populations of immune cells macrophages in the liver. Onegroup of macrophages ...ntists willexplore the role of these immune-system cells in damage and repair toother organs, including the kidney....

New SARS Protein Linked To Important Cell Doorway

... a SARS protein that makes its home in a structure cells use to modify proteins destined for transport to t...getting orf7a to the Golgi apparatus—the structure cells use to prepare proteins for transport to the cell surface--and keeping it there. Plans for follow-u...

MSI releases 'moleculizer' - a new approach to simulation of intracellular biochemical networks

...s ofpotential protein complexes and reactions that cells are able togenerate.The Molecular Sciences Institute is an independent nonprofit researchlaboratory that combines genomic experimentation with computermodeling. Work at MSI aims to weave physics, engineering, computerscience, and mathematics together...

Jumping gene helps explain immune system's abilities

... foe. The "big picture" behindthis ability is that cells build proteins called antibodies that bindto parti...fferings.While the choices aren't as tasty, immune cells select sections ofcertain genetic instructions in order to make instructions for aprotein that will ...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

... foe. The "big picture" behindthis ability is that cells build proteins called antibodies that bindto parti...fferings.While the choices aren't as tasty, immune cells select sections ofcertain genetic instructions in order to make instructions for aprotein that will ...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

... foe. The "big picture" behindthis ability is that cells build proteins called antibodies that bindto parti...fferings.While the choices aren't as tasty, immune cells select sections ofcertain genetic instructions in order to make instructions for aprotein that will ...

Nano-Probes Allow an Inside Look at Cell Nuclei

...ce and retain quantum dots in the nuclei of living cells for up to a week without harming the cell. In addi... resolution. These labels are also either toxic to cells or difficult to construct and manipulate. In the future, they hope to tailor quantum dots to track ...

DNA Recombination and Repair—A New Twist to RecA Function

...as a motor: for instance, the march of white blood cells toward pathogens is powered by the growth of actin filaments pushing against the cells?membranes. In all cases, coherent motion implies a coordinated and polarized use of energy. Now, Julia Cox, Oleg Tsodikov, and Michael Cox present evidence indica...

Gene sequencing explains bioremediation 'bug'

... foe. The "big picture" behindthis ability is that cells build proteins called antibodies that bindto parti...fferings.While the choices aren't as tasty, immune cells select sections ofcertain genetic instructions in order to make instructions for aprotein that will ...

NC State scientist finds soft tissue in T. rex bones

...erior structures resembling blood vessels and even cells are still present. In a paper published in the Ma...isplayed the same appearance as the blood and bone cells from the ostrich sample. Schweitzer then duplicated her findings with at least three other well-pre...

Zebrafish may hold key to understanding human nerve cell development

...balance. Traditionally viewed as supportingactors, cells known as glia may be essential for the normal developmentof nerve cells responsible for hearing and balance, according to newUniversity of Utah research. The study is repor...

Harmful Bacterium Commonly Found in Poultry May Survive Refrigeration and Frozen Storage Combined

...balance. Traditionally viewed as supportingactors, cells known as glia may be essential for the normal developmentof nerve cells responsible for hearing and balance, according to newUniversity of Utah research. The study is repor...

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