isolated 2 6

Tag: "isolated" at biology news

Anthrax stops body from fighting back, study shows

...in-filament formation, and researchers havealready isolated one that may be responsible, Southwick said. The UF findings also could affect research on other diseases. Becauseactin is found in every cell, the study could lead researchers to knowmore about how tumors and other cells move in the body, Southwick...

Oldest dated evidence of cattle in southern Africa found

...ng held view that the Kalahari was a comparatively isolated area that was primarily occupied by foraging peoples until recently. The findings, to be published in the August/October issue of Current Anthropology, are also interesting in the broader context of the spread of domestic livestock throughout Africa...

Researchers learn how blood vessel cells cope with their pressure-packed job

...g blood vessel tissue in the body. The researchers isolated endothelial cells from the bovine aorta, grew the cells in culture flasks, and seeded them onto the silicone membranes. After the cells grew into confluent layers, a piston-like "indenter" was programmed to repeatedly push into the underside of the m...

Anti-cancer Compound In Beer Gaining Interest

...Xanthohumol was actually first discovered in 1913, isolated as a yellow substance found in hops. Researchers started studying its molecular structure in the 1950s, but for decades the only people who showed any real interest in it were brewers, who were trying to learn more about how hops help impart flavor t...

New antifreeze protein found in fleas may allow longer storage of transplant organs

...process called ice affinity purification, the team isolated the new protein, which is rich in an amino acid ca...ld, including Antarctica, but until now no one has isolated the protein. As well as its potential for use in organ transplants, the researchers suggest it could...

New vaccine platform may fight infections with causes from influenza to bioterrorism

...nt of pneumocystis, the kexin molecule, which when isolated yielded greater antibody response than pneumocystis as a whole. In perhaps the most significant experiments the researchers conducted, mice depleted of CD4+ T cells received the combination CD40L-kexin vaccine in three doses administered three week...

Natural compound from 'pond scum' shows potential activity against Alzheimer's

A compound isolated from a cyanobacterium, a type of blue-green algae ...e that a potent agent against Alzheimer's has been isolated from cyanobacteria, commonly known as 'pond scum.' The study was published in the Dec. 26 issue of t...

Gene therapy for muscular dystrophy fixes frail muscle cells in animal model, Stanford study finds

...d that no matter how well gene therapy works in an isolated muscle, researchers still must figure out how to get that gene to muscles throughout the body. Despite the remaining hurdles, both Rando and Calos said that their study is a step towards eventually treating muscular dystrophy and other diseases using...

Ancient anthropoid origins discovered in Africa

.... "They show that findings by other researchers of isolated examples of possible higher primate fossils in Asia do not constitute evidence of an ancestral crown anthropoid lineage there." According to Seiffert, the latest findings help fill in the gap between later anthropoids and the oldest undisputed anthr...

2005 AIDS figures released by WHO and UNAIDS

...p HIV treatment and prevention together and not as isolated interventions," said WHO Director-General Dr LEE Jong-wook. "Treatment availability provides a powerful incentive for governments to support, and individuals to seek out, HIV prevention information and voluntary counselling and testing. Effective pre...

Seaweed yields new compounds with pharmaceutical potential

...would be harmful to humans. The compound that was isolated in the greatest abundance -- named bromophycolide A by the researchers -- killed human tumor cells by inducing programmed cell death (called apoptosis), a mechanism that is promising for development of new anti-cancer drugs, researchers noted. The f...

Earliest European Farmers Left Little Genetic Mark On Modern Europe

...p HIV treatment and prevention together and not as isolated interventions," said WHO Director-General Dr LEE Jong-wook. "Treatment availability provides a powerful incentive for governments to support, and individuals to seek out, HIV prevention information and voluntary counselling and testing. Effective pre...

Plants have a double line of defence

...an important component of nonhost resistance. They isolated arabidopsis mutations, which are partially susceptible to powdery mildews. If these genes are defective, or if the protein they code is missing in the plant cells, the fungus can invade the leaf epidermis cells more frequently. For that reason the sc...

First big influenza genome study reveals flu evolution

...gger a new pandemic. Although researchers first isolated the influenza virus in 1933, they still don't fully understand how the virus evolves. Influenza is an RNA virus that contains eight separate RNA segments encoding genes for at least 11 proteins. This structure explains why the influenza virus constan...

Multiple genes permit closely related fish species to mix and match their color vision

...of the cones to different wavelengths of light and isolated the seven genes that give rise to the pigment proteins. The seven cone types have maximum sensitivities ranging from the red end of the spectrum right through to the ultraviolet--light outside the range of human sensitivity. The researchers showed th...

Penn study finds direct role for glial cells in brain cross-talk

...udies that have shown capability were conducted on isolated nerve cells or on slices of brain tissue. In this most recent study, the researchers made genetic manipulations to glial cells in live mice, thus directly demonstrating how astrocytes function in the brain. The mice were engineered to produce a prot...

Cells from amniotic fluid used to tissue-engineer a new trachea

...am obtained a small quantity of amniotic fluid and isolated mesenchymal stem cells. Mesenchymal stem cells descend directly from embryonic stem cells and are abundant in the amniotic fluid. They specialize in making connective tissues, including muscle, bone, cartilage, fat and tendon. Fauza's team multiplie...

Polio vaccination strategies assessed as eradication nears

...f 419 adults with HIV infection, no poliovirus was isolated from any of the specimens. Because of these results, it is likely that fewer than 1 percent of adults with HIV infection experience prolonged virus shedding when exposed to OPV, "and therefore probably represent minimal risk of re-introducing vaccin...

OHSU discovery sheds light into how stem cells become brain cells

...ng neurons but virtually no glial cells. When they isolated neural stem cells, placed them into cell culture and then removed Brg1, the cells in the culture turned into neurons but failed to differentiate into glia. "This research shows us that in mice, Brg-1 is a critical signal that prevents stem cells fr...

RNA splicing occurs in nerve-cell dendrites

...licing as well as the translated protein in single isolated dendrites. "In addition to showing that mRNA splicing occurs in dendrites in which we added mRNA, we also detected the resulting protein," notes Eberwine. "Since the splicing machinery is present in dendrites, one could speculate that if pre-mRNA is...

1 2 3 4 5 6 7 8 9 10