formed 2 5

Tag: "formed" at biology news

Tracking the memory trace

...nds a memory trace in Drosophila or fruit flies is formed in a pair of neurons called the dorsal pair medial... belies the commonly held precept that a memory is formed in the same way that data are stored in a computer ?always in the same place. "It's not as if we a...

New book on rain forests, slash-and-burn agriculture

...ternatives to Slash-and-Burn consortium, which was formed in 1992 by a group of concerned national and international researchers. Its authors include agronomists, foresters, economists, ecologists, soil scientists, anthropologists and representatives of many other disciplines. Vosti, formerly a research fe...

Source of crucial immune cell in the skin discovered

...tight network of cells covering the entire body is formed in the skin by a group of cells known as Langerhan...So, targeting the pathway by which these cells are formed could lead to new therapies to help children who now face the possibility of lifelong complications....

Pair of studies offer new clues to combat antibiotic resistance

... study how the gram-positive bacterial membrane is formed and aid in the design of new antibiotics to block its formation, says Walker. Her lab will soon begin screening for compounds that can block this important chemical pathway, she says. Gram-positive bacteria include anthrax and other strains that cau...

Neurons find their place in the developing nervous system with the help of a sticky molecule

...ust elbow their way through cells lying in earlier formed layers to reach what will become the outermost layers. Without MDGA1, these neurons begin to migrate but get stuck before they reach their normal destination. The MDGA1 gene was cloned and characterized first in rat by O'Leary and two former postdoc...

Liquid ventilation

.... Moreover, they often lack surfactant, a compound formed by proteins and lipids that avoids the lungs folding in on themselves before the baby gets stronger. The respirators usually employd in these cases provide artificial surfactant, but not always in sufficient amounts to provide correct therapy. In ...

UC Berkeley researchers create a biologically-inspired artificial compound eye

...lf-written waveguides. Because these channels are formed at the angle of the light beams that strike them, Lee used a condenser lens to bend his light source into a spoke-like pattern of beams that converges on the eye's dome. The end result is that the waveguides pierce the resin at angles that head towar...

Enzyme inhibitors block replication of SARS virus

...esters. The esters entered the SARS protease site, formed an intermediary compound, then inactivated the SARS enzyme. The findings were confirmed using mass spectrometry analysis of the enzyme intermediary. "These benzotriazole esters are relatively stable and act as suicide inhibitors," Wong said. "They...

Powerful new tool for studying brain development

...he National Institutes of Health (NIH), which have formed a consortium to accelerate breakthroughs in understanding the nervous system. St. Jude undertook the BGEM project under subcontract from Rockefeller University (New York) on behalf of NINDS. "A researcher who discovers a previously unrecognized gen...

Driver of anthrax toxicity could lead to late-stage therapy

...ence of the bacteria depends on separate complexes formed by interaction of a carrier protein, protective antigen, with lethal and edema factors responsible for the toxic effects and swelling that impairs the host's immune response. In the current study, the researchers inactivated genes randomly in human...

Relic of life in that Martian meteorite? A fresh look

..., we have shown that these carbon complexes likely formed by non-biological processing on Mars," concluded Steele. ...

Researchers solve mystery of how nuclear pores duplicate before cell division

...Studies watched as new funnel-like pore structures formed from scratch, and inserted themselves into the nuc..."This allowed us not only to watch as single pores formed but also to demonstrate that they formed from scratch without the help of already existing pores." ...

Botox could help target resistant tumors for treatment

...feed tumors," said Gallez. "Tumor microvessels are formed hastily, and lack smooth muscle layers, but one can find mature blood vessels, with smooth muscle layers that respond to toxins like Botulinun, inside tumors. Several laboratories, including ours, are working on new strategies to alleviate tumor hypo...

Researchers discover a new genetic cause of Alzheimer's disease

...nd be cut differently. The amyloid protein that is formed now has different characteristics, causing it to begin to stick together and precipitate as amyloid plaques. The development of amyloid plaques in the brain tissue of Alzheimer patients is a central factor in the search for a therapy for Alzheimer's ...

The urban evolution lab

...nd be cut differently. The amyloid protein that is formed now has different characteristics, causing it to begin to stick together and precipitate as amyloid plaques. The development of amyloid plaques in the brain tissue of Alzheimer patients is a central factor in the search for a therapy for Alzheimer's ...

Weizmann Institute suggests that immune cells help to maintain cognition and brain cell renewal

...t immune cells. Significantly fewer new cells were formed in those mice. On repeating the same experiment, this time with mice possessing all of the important immune cells except for T cells, they again found impairment of brain-cell renewal, confirming that the missing T cells were an essential requirement...

Carbon cycle was already disrupted millions of years ago

...responsible for this. Methane could also have been formed under high pressure in coal seams and then subsequently released upon coming into contact with magma. A third option is that carbon from organically-rich sediment came into contact with hot magma. As a result of this the organic molecules combusted i...

New insights into neural tube defects

...e polarity of a cell is lost. Therefore, the newly formed daughter cells initially lack the information to direct them to migrate to the midline where they are needed for proper neural tube development. The report in Nature is the first to demonstrate that the polarity is restored to the daughter cells af...

Bioactive cement scaffold may improve bone grafts

...affold is seeded with a patient's own cells and is formed with a cement paste made of minerals also found in natural bone. The paste is mixed with beads of a natural polymer (made from seaweed) filled with bone cells. The paste is shaped or injected into a bone cavity and then allowed to harden with the enc...

High-resolution light microscope reveals the fundamental mechanisms of nerve communication

...r, localized in the membrane patch whichpreviously formed the vesicle. With the aid of STED microscopy the researchers in Göttingen were able to show that the synaptotagmin molecules of a single vesicle remain together after fusion. The membrane ofthe nerve cell thus behaves in an 'economical' fashion: the ...

1 2 3 4 5 6 7 8 9 10