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Tag: "carry" at biology news

Nanotubes used for first time to send signals to nerve cells

...g repertoire of carbon nanotubes -- the ability to carry electrical signals to nerve cells. Nanotubes, tiny hollow carbon filaments about one ten-thousandth the diameter of a human hair, are already famed as one of the most versatile materials ever discovered. A hundred times as strong as steel and one-si...

Copying nature could save us energy, study shows

...mmer has a very heavy head, so that it is heavy to carry around and lift but can do a lot of work with one ...r, its head, relies on speed. It is very light to carry around, and functions rather like a whip, with the heavier body moving a small amount, and the light...

A surprise about our body clock

...d mice in which bone marrow cells were modified to carry a green fluorescent marker allowing researchers to easily track them. The researchers demonstrated that these bone marrow cells are quickly mobilized to the damaged heart region following a heart attack. Once in the damaged area, the cells produce ch...

Healing the heart with bone marrow cells

...d mice in which bone marrow cells were modified to carry a green fluorescent marker allowing researchers to easily track them. The researchers demonstrated that these bone marrow cells are quickly mobilized to the damaged heart region following a heart attack. Once in the damaged area, the cells produce ch...

Gene linked to rare disease activates fat breakdown

...tion known as Chanarin-Dorfman Syndrome (CDS), who carry a mutant version of the gene, suffer from the widespread buildup of fat in tissues throughout their bodies. The group found that the gene "CGI-58" is a strong activator of one of three lipid-degrading enzymes, or lipases, that disassemble triacylgly...

Research offers new hope for preterm babies

...e brain of a preterm baby is able - or unable - to carry out this key process," Dr Wong said. A machine, ...w blood pressure," said Dr Wong. "The fact we can carry out this work at the baby's bedside means minimal disruption to a baby whose health is so critical."...

Choosy females make colourful males

...reasons: brightly coloured males from both species carry fewer parasites and are thus in better condition. Moreover, both species are adapted to different infection risks, which are associated with a difference in water depth and food choice. It is therefore in the females' interest to mate with their own ...

A single sugar found responsible for an antibody's ability to treat inflammation

...raction of the IgG antibodies in the IVIG solution carry a sugar called sialic acid that is required for its protective ability. IgG antibodies bind to and activate specific immune cells, with different forms or "subclasses" binding to specific receptors (called Fc receptors) on the immune cell's surface...

The molecular post office inside the cell

...ere is a particular place inside a cell where they carry out their function. But how do they get there? Scientists from the Charité Berlin, the University of Heidelberg, and the Max Planck Institute for Molecular Genetics in Berlin have now been able to visualize the structure of a "molecular machine" inv...

Transgenic goat's milk offers hope for tackling children's intestinal disease

...ound that milk produced by transgenic goats, which carry the gene for an antibacterial enzyme found in huma... present in milk produced by transgenic goats that carry the gene for lysozyme." Background Lysozyme is a protein found in the tears, saliva and milk o...

New bird flu drug promises to beat the problem of resistance

...fferent types of enzymes. These are proteins which carry out specific jobs for the virus. The first of th... a part that is essential for the neuraminidase to carry out its natural job. This process stops the neuraminidase enzyme in its tracks, and makes it impos...

Scientists reverse evolution

...arries a code or blueprint that makes a protein to carry out some specific function in an organism. Some genetic mutations change this "coding region" and thus change the protein a gene makes. Other mutations change other parts of the gene, known as "regulatory sequences," which decide when and where th...

New strategy rapidly identifies cancer targets

...hat only a small proportion of AML patients likely carry JAK3 mutations, he says the technique will help find other cancer-causing mutations. The process is highly technical, but it cuts the time needed to find a faulty gene by months. "If you try to sift through DNA, it takes almost a year," said Druke...

New findings offer more complete view of breast cancer gene mutations in US population

...ctors for assessing which women are most likely to carry these genetic mutations. Each year, approximate... mainly to whites, and that African American women carry BRCA2 mutations more often than white women." The researchers also identified key predictors of wh...

'Sticky' mice lead to discovery of new cause of neurodegenerative disease

...being manufactured there. Each tRNA is designed to carry only one of the 20 amino acids used to build prote...serine, which resembles alanine, to tRNAs meant to carry only alanine. That meant that these tRNAs, said to be mischarged, would incorporate the incorrect am...

Possible birthplace of malignant brain tumors identified

...ther neural stem cells in the brain called B cells carry a receptor--known as platelet-derived growth factor receptor á (PDGFRá)--for the signaling molecule PDGF. Neural stem cells are immature cells that serve as the continual source of new brain cells in adults, and PDGF is known as an important regula...

Buckyballs boost antibody's chemotherapy payload

...to a buckyball. "The idea that we can potentially carry more than one Taxol per buckyball is exciting, but...gents is likely to be the buckyball's potential to carry multiple drug payloads, such as Taxol plus other chemotherapeutic drugs," said Rice's Lon Wilson, pr...

MIT sheds light on how tumor cells form

...umber of chromosomes, the structures in cells that carry genetic information. The normal number of chromosomes in a human cell is 46, or 23 pairs. Aggressive tumor cells often have fewer or more than 23 pairs of chromosomes, a condition called aneuploidy. To date it has not been clear how tumor cells bec...

How plants avoid feeling the burn

...State University. Carotenoids act as 'wires' to carry away the extra sunlight energy in the form of unwanted electrons, somehow wicking away the extra electrons across long distances from locations that could damage plant tissues and photosynthesis. During photoprotection, the consensus school of though...

New lab technique churns out fungus' potential cancer fighter

...ery because researchers can't make enough of it to carry out tests. To bring about a new drug, organic chemists must produce a new chemical in enough quantity to test it under many different circumstances to tease out its modus operandi. Until now, no method existed to generate rasfonin, aside from growin...

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